Title of Invention

A METHOD FOR THE MANUFACTURE OF A CARRIER FOR THE BEARINGS OF DRAWING FRAME ROLLERS, AND THE CARRIER OF A DRAWING FRAME

Abstract A method for the manufacture of the carrier (5) for bearing the drafting frame rollers (35, 36, 37) of a drafting frame (1) is disclosed, in which a left hand and a right-hand side brace (10) of the carrier (5) are cut from metal plate, in which the cut edges (11) resulting from the cutting process on the previously mentioned side braces (10) are used to support bearings (31, 32, 33) for the lower rollers (35, 36, 37) of the drawing frame (1). Equally the invention includes a carrier of this type and a drawing frame having such a carrier.
Full Text FORM 2
THE PATENT ACT 197 0 (39 of 1970)
The Patents Rules, 2003 COMPLETE SPECIFICATION
(See Section 10, and rule 13!
1. TITLE OF INVENTION
A METHOD FOR THE MANUFACTURE OF A CARRIER FOR THE BEARINGS OF DRAWING FRAME ROLLERS, AND THE CARRIER OF A DRAWING FRAME

APPLICANT(S)
a) Name
b) Nationality
c) Address

RIETER INGOLSTADT SPINNEREIMASCHINENBAU AG
GERMAN Company
FRIEDRICH-EBERT-STRASSE 84,
D-85055 INGOLSTADT,
GERMANY

PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the
invention and the manner in which it is to be performed : -

The invention concerns a method for manufacturing a carrier for the bearings of the rollers of a drawing frame in accordance with the general concept of Claim 1. Similarly, the invention concerns a carrier of this type in accordance with the preamble of Claim 15, as well as a drawing frame having a carrier of this type and a spinning preparation machine having a drawing frame of this type.
On the known frames of drawing machines, for instance the D30 and D35 drawing frames made by Rieter Ingolstadt Spinnereimaschinenbau AG, the cylinders of the drawing equipment are mounted in cast bearings that are located in turn on a common cast carrier or on connecting rods to permit central adjustment of the drawing frame cylinders. The precise implementation can be found, for instance, in DE 195 29 831 Al or DE 195 48 840 Al. It can be seen, particularly, from the first publication, that the bearing or casting is located on the connecting rod. This acts at the same time as a guide for the bearing, and is bolted to it. The common cast carrier that guides the connecting rods is, in turn, attached to a metal plate carrier that functions as the body of the drawing frame. The main drive shaft and the countershaft for the drawing frame drive are also attached to this carrier plate. The upper rollers of the drawing frame, to each of which a lower roller is assigned in order to form a nip line for the fibre sliver, are located on a pivoting loading arm that can be locked to the carrier plate by a pivoting catch.
A disadvantage of this implementation is that the individual bearing locations for the shafts and the drawing frame cylinder, and in particular the common cast carrier for the cylinder bearings or castings, are expensive to manufacture.
It is the task of the present invention to make the manufacture of a carrier for bearing the rollers of the drawing frame easier and more economical.
This task is fulfilled for the method mentioned at the outset through the features of Claim 1, and for the carrier mentioned at the outset through the features of Claim 15.
The advantages of the invention are particularly to be seen in the fact that the
manufacture of the left-hand and right-hand side braces of the carrier is significantly
simplified by cutting from metal plate. The method in accordance with the invention
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has the further advantage that the cut edges of the side brace mentioned above are themselves used to hold the bearings or castings for the lower rollers of the drawing frame. In this way, the extensive reworking of the common bearings, which conventionally are cast, is avoided.
It is particularly favourable if the side braces mentioned above are cut from the plate by means of a laser. Laser cutting can be done at great speed under computer control, thereby offering a significant advantage over the cast version.
In a particularly favourable implementation the two side braces are joined by at least one connecting rib positioned vertically between the two parallel side braces. This rib is also favourably cut from sheet metal by means of a laser.
It has, surprisingly, been found that the cut edges resulting from the preferred laser cutting do not require mechanical rework in order to hold the lower roller bearings, yet nevertheless permit highly accurate positioning of the bearings for the purposes of adjusting the drawing frame distances. Extensive grinding and polishing of the cut edges is therefore unnecessary, further simplifying and speeding up the manufacturing process. This means that the bearings for the lower rollers can be positioned easily on the cut edges; when the distances between the drawing frame rollers are changed, they only need to be slid along the cut edges prior to being fixed in place again.
In order to manufacture the carrier, the irunimum of three parts mentioned above, namely the left and right side braces and the rib, are clamped at several locations in a locating jig, aligned to one another, and then welded together. For the clamping it is particularly favourable if at least a part of the cut edges that will be used as bearings for the drawing frame rollers in the finished drawing frame are used as clamping surfaces. This approach also contributes to further simplification of the manufacturing process.
When welding the side braces and the rib together it is particularly favourable if a
laser welding device is used, as this leads to the advantage that the carrier as a whole
is only slightly heated, thus resulting in extremely low distortion of the carrier. The
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positioning in the locating jig can be done with such precision that subsequent machining of the bearing surfaces is not necessary. The surfaces of the cut edges created with the precision of laser cutting are, surprisingly, entirely adequate for the highly accurate positioning required for the bearings on the carrier.
The rib located on the carrier between the two braces also permits the bolting surfaces for the bearings to be sufficiently parallel. It is particularly favourable if the side braces are cut out of metal plate in such a way that not only is it possible for the bearings for the lower rollers to be located on them, but also the calender rollers, usually required to pull the fibre sliver as it emerges from the drawing frame and to transport it on to a storage can.
In a particularly favourable implementation, furthermore, holes are cut by the laser in the side braces in order to support, in addition, the main drive shaft and/or the countershaft in the side braces. As a result of this extremely compact arrangement of all the important elements (lower roller bearings, calender roller bearings, shaft bearing for the main drive and the countershaft) a large number of manufacturing steps are saved in contrast with the state of the art. In addition, this yields a very compact carrier structure, which is favourably mounted on a lower plate after welding the side braces and the rib. Once again it is particularly favourable to use laser welding equipment for this purpose.
It is favourable if the carrier as a whole is galvanized after the two side braces and the rib have been welded to provide effective rust protection. Galvanizing after welding has the advantage that only a single galvanizing procedure is required.
The carrier in accordance with the invention, which favourably is manufactured by the method in accordance with the invention, comprises the two cut side braces that have been mentioned and the minimum of one connecting rib of sheet metal joined to the two side braces. In a favourable implementation, the bearings for the lower rollers of the drawing frame are located directly on the cut edges of the two side braces; these cut edges are favourably cut with a laser. The bearings for all the lower rollers are favourably attached to the two side braces. The bearing for the calender
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roller following the drawing frame (as part of a pair of rollers) can also be favourably mounted on the two side braces. The cut edges of the two side braces are preferably not further machined, so that the bearing for the lower roller and, when used, the bearing for a calender roller, can be mounted directly on to the cut edges. It is even possible not to carry out any further mechanical work on the side braces at all.
The minimum of one rib is favourably folded one or more times, and can advantageously be made to follow, at least in part, the form of the two side braces. Good static strength can in this way be achieved favourably. In one favourable implementation, the minimum of one rib forms part of the walls of a ventilation duct, so that the rib, in addition to maintaining a precise, parallel spacing between the two side braces and providing mechanical stability, also performs a further function - and at the same time helps avoid the need for parts of the ventilation ducts that would otherwise be required separately.
It is particularly favourable for the side pieces to have bearing regions with one or more holes through which fastening bolts can pass. Correspondingly, the two side braces favourably have slots opposite to and aligned with one another. The lower roller bearings can be moved in parallel along these slots in order to change the drawing frame distances. The bearing regions of the side braces allow the side faces of the lower roller bearings to be placed flat against them. This kind of bearing can be referred to as a flanged bearing.
A drawing frame incorporating a carrier in accordance with the invention is also part of the invention. It has been found to be favourable if the drawing frame is tilted above the horizontal in the range between 10° and 80°, preferably between 40° and 75°, and most preferably by about 60°. An inclined arrangement of the drawing frame rollers of this type provides, in particular, good accessibility to all the necessary operating elements for the purpose, for instance, of inserting fibre sliver into the drawing frame. Favourably, the operative here carries out his work around both sides of the loading arm.
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In one favourable implementation, the drawing frame is a 3-over-3 drawing frame. Other arrangements of rollers, however, are perfectly possible, such as a 4-over-3 drawing frame.
A spinning preparation machine with two drawing frames positioned next to one another (double head drawing frame) makes it possible, when the cylinder and calender roller bearings are implemented as has just been described, to align the cylinders to one another. The basic position of each cylinder is fixed at the outer flange bearings. By coupling the two aligned cylinders of the two neighbouring drawing frames, the two central flange bearings become aligned; they can then also be locked.
Favourable further developments of the invention are indicated by the features of the subsidiary claims.
The invention is explained in more detail with the aid of the figures below. They show:
Figure 1 A side view of the drawing frame with band placement equipment;
Figure 2 The drawing frame of Figure 1 being accessed by an operative;
Figure 3 A view from above of the drawing frame in accordance with Figure 2;
Figure 4 An enlarged side view of the drawing frame shown in the previous figures;
Figure 5 A front view of the drawing frame shown in Figure 4 (without
loading arm);
Figure 6 A view from above of the drawing frame shown in Figures 4 and 5 (without loading arm);
Figure 7 The carrier for the drawing frame shown in the foregoing figures.
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Figure 8 A detailed sectional view of a side brace with the lower roller bearings flanged onto it.
In Figures 1 and 2 a schematic side view of the important parts of a drawing frame is shown as an example of a spinning preparation machine. The heart of the machine is the drawing frame 1, in which one or more fibre slivers FB preceding the drawing frame 1 are stretched in the familiar way. The fibre sliver or slivers FB pass through the drawing frame 1 in the direction f3 (see Figure 1). As a result, the output of the drawing frame 1 provides a single, relatively consistent, fibre sliver FB that is drawn by a pair of calender rollers 38, 48, out of the drawing frame 1 through a compressing unit 70 (indicated schematically) and passed through a usually curved band channel 71 that is integrated into a turntable 72, and placed into a can K. The turntable 72, and therefore the band channel 71, rotate about a vertical axis indicated by a dotted line. The can K is also rotated by being placed on a rotating can table 73. The two vertical rotary axes of the can plate 73 and the turntable 72 turn, in the conventional way, in opposite directions, so that the fibre sliver FB is placed into the can K in a cycloidal pattern.
The can K stands in an opening in the lower structure 2, which also supports the drawing frame 1. A pedestal 3, on which the operative B can stand, is positioned in front of the lower structure 2.
In order to draw the fibre sliver FB, the drawing frame 1 comprises three pairs of rollers. These consist first of all of the inlet roller pair, comprising the lower inlet roller 35 and the upper inlet roller 45. Following the direction of movement f3 of the fibre sliver or fibre slivers FB, there follow the lower middle roller 36 and the upper middle roller 46. Between them, the rollers 35, 45, 36 and 46 comprise the preliminary drawing region. The last pair of rollers in the drawing frame 1 consists of the lower outlet roller 37 and the upper outlet roller 47, which, together with the middle rollers 36 and 46, comprise the main drawing region. The roller pairs mentioned above run with different circumferential speeds, so that the fibre sliver or slivers FB that are stretched as a fibrous web in the drawing frame 1 and clamped
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along the nip line of each pair of rollers are stretched according to the ratio of the circumferential speeds.
The lower rollers 35, 36 and 37 are carried at their ends in bearings 31, 32 or 33 which are positioned - as will be explained in further detail with reference to Figures 4-6 -on a carrier 5. The upper rollers 45, 46 and 47 are supported on a loading arm 50 with two side cheeks 52a and 52b, whose free ends are joined by means of a horizontal bar 54 and which are each held at the other end in a pivot bearing 58. By means of this linkage, the loading arm 50 can be swung around the pivot axis 59, see arrow f2.
In order to achieve optimal grouping of the fibre sliver or slivers FB in the drawing frame 1, the loading arm 50, and the upper rollers 45, 46 and 47 that are suspended from it are locked in the loading position shown in Figure 1 by means of two pivoted levers 75. The claws at the ends of the pivoted levers 75 grip the horizontal bar 54 of the loading arm 50. When the pivoting arm 75 is swung up around the pivot axis 76 (see arrow fl), the loading arm 50 becomes free and can be swung up around the pivot axis 59. This situation is illustrated in Figure 2.
The upper rollers 45, 46 and 47 are pressed by loaded rams 41, 42 and 43 into the receptacles 66 (same reference number) of the bearings 31, 32 and 33. The pressure can be applied pneumatically or by means of springs, the latter being suggested by the zigzag line 51.
The drawing frame 1 shown in the figures is what is known as a 3-over-3 drawing frame, inclined about 45° above the horizontal in front of the operative B. Other angles of inclination may also be implemented. The drawing frame in accordance with the invention can also be aligned horizontally or vertically.
It should be noted that Figures 1 and 2 only show the mechanical components of the drawing frame. For the sake of simplicity, the control units, central computer, drives and the like are not shown; favourably they correspond to those of known implementations. Drives that transfer the power by belt, individual drives and mixed configurations are possible here.
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As can be seen from Figures 1 and 2, an operative B of the drawing frame 1 approaches the frame from the front, by initially standing on the pedestal 3 in order to work at an optimum height. The drawing frame 1 is then positioned in front of the chest and abdomen of the operative B. In order to be able to manipulate the fibre sliver or slivers FB in the drawing frame 1 - for instance in order to insert the ends of slivers that require drawing, or in order to clean the drawing frame 1 - he unlocks the loading arm 50, so that he can then swing it towards himself. In the view of Figure 3, the opened drawing frame 1 is illustrated again to provide a better overview.
It is clear from Figures 2 and 3 that the operative B reaches to both sides of the loading arm 50 in order to be able to manipulate the drawing frame 1 or the fibre sliver or slivers FB. Because the free end of the loading arm 50 is at rest in front of his chest, the operative B has a free view of the drawing frame 1 over and across the loading arm 50. The ease of working is supported by the inclined positioning of the drawing frame 1.
In figure 4, the drawing frame 1 is shown from the opposite side to Figures 1 and 2. It consists of a carrier 5 in accordance with the invention, substantially consisting of two side braces 10a and 10b, parallel to one another, and joined together by the rib 20. Whereas both of the side braces 10a, 10b extend in a vertical plane, the rib 20 is curved, and has several plane sections. The rib 20 is shown on Figure 2 as a dotted line; the fold lines 21, 22 and 23 are also shown.
The rib 20 has - as can particularly seen in the front view of Figure 5 and the view from above of Figure 6 - an opening 27 in the centre. A extending from the loading arm 50, delimited at the bottom by the lower plate 2 and from above by a section 25 of the rib 20. This opening 27 is used to remove fibres from the area of the drawing frame (see arrow f5), in order to keep it clean. The vacuum equipment required for this, and the other vacuum channels in front of and behind the opening 27 are not displayed.
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In accordance with the invention, the side braces 10a, 10b and the rib 20 are cut from metal plate, the use of a laser to do this being particularly favourable. One of the advantages of this procedure is that the braces 10a, 10b and the rib 20 can be made quickly and precisely.
The process of laser cutting mentioned above has been found, further, to be highly advantageous because the cut edges 11 do not require rework in order to be able to accurately accept and position the bearings 31-34. This discovery has led to a further simplification of the manufacturing process of the drawing frame 1 in accordance with the invention.
As can be seen in Figure 8, the specification of the cutting direction means that the cut edges 11 slope slightly inwards. The laser beam is applied from the inner side of the side brace 10b, which is from the left-hand side as shown in Figure 8. The bearing 32 (taken here as an example) is located essentially at the highest part of the cut edge 11. The cut edge 11 on the opposite side brace 10a is also created by cutting the plate from the inside of the side brace 10a, so that the two cut edges exhibit mirror symmetry.
It has been found that the bearings 31-34 can be positioned with great precision in spite of the inclination of the cut edge.
The side braces 10a, 10b furthermore incorporate three slots 12, 13, parallel to one another but offset (see Figure 7) that are used for locking the bearings 31, 32 and 33 for the lower rollers 35, 36 and 37. As can be seen particularly in Figure 8, the bearings 31, 32 and 33 have an L-shape on the underneath, and therefore, when in position, lie on the inner side of the side braces 10a, 10b, and, on the other side, on the cut edge 11 itself. Figure 8 shows, for instance, the attachment and fastening of bearing 32 on side brace 10b - which favourably is not thicker than 18 mm and is preferably not thicker than 12 mm.
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The long shoulders of the L-shape of the bearings 31, 32 and 33 each has a pair of parallel, internally threaded holes 67 that correspond to the slots 12,13, and through which bolts 80 are inserted from the outside of the side braces 10a, 10b. Between each bolt 80 and the side brace 10a or 10b there is a compression plate 81, see Figure 8. The two bolts for each bearing 31, 32 and 33 serve to secure against tilting. When the bolts 80 are loosened, the corresponding bearing 31, 32 or 33 can be slid along the slots 12, 13 and locked in place after positioning in order to change the preliminary drawing and/or main drawing distance (i.e. the distance between the nip lines of the corresponding pairs of rollers).
In order to support the ends of the respective lower rollers 35, 36 and 37, each of the bearings 31, 32 and 33 has a through-hole 65 (same reference number). In addition, in each case there is a receptacle 66 for the ends of each of the associated upper rollers 45,46 and 47.
The side braces 10a, 10b also each have a slot 14 along which a bearing 34 for supporting the calender roller 38 can be pushed. Like the bearings 31, 32 and 33 mentioned above, the bearing 34 also has holes for locking bolts, a through-hole 69 to accept the end of the calender roller 38, and a recess 68 opening upwards to accept the end of the other calender roller 48.
As can particularly be seen in figures 4 and 7, the laser is also used to make cuts in the two side braces 10a, 10b. A circular opening 17 is first cut by the laser in the side braces 10a, 10b in which the main drive shaft (not shown) for the lower drawing rollers 35, 36 and 37 has its bearing. Starting from the opening 17, a further straight cut 18 is made to a circular opening 19 that is used for the bearing for the countershaft (not illustrated).
The carrier 5 is preferably fastened to a lower plate 7, and it is particularly preferred to do this by welding. The lower plate 7 is itself fastened to the lower structure 2 (see Figure 1), for instance by bolting it. To provide a bearing for the turntable 72, the lower plate 7 has a circular opening 9, as can be seen in Figure 6.
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It is particularly favourable if the side braces 10a, 10b and the rib 20 are joined to form the carrier 5 using a laser. This is done by clamping the three parts in a jig, not displayed, and aligning them to one another. Figure 7 illustrates how, by means of the jig, forces can be applied in the direction of the pairs of arrows f8, f8' and f9, f9', where the side braces 10a, 10b have parallel clamping faces opposite one another for this purpose. The clamping surfaces in the region where the force is applied f8 correspond preferably to the support surfaces for at least some of the bearings 31-34 (favourably bearings 31 and 32), in other words the cut edges 11. The cut edges 11 thereby represent, in part, clamping faces. The other cut edges are also used for clamping.
It can be seen from Figure 5, that opposing forces are exerted also in the directions f7, f7' on the side braces 10a, 10b. The laser welding process begins after the side braces 10a, 10b and the rib 20 have been accurately aligned in the jig.
The spinning preparation machine in accordance with the invention with the drawing frame 1 in accordance with the invention is designed, as shown in Figure 3, in such a way that the can ejection device (see arrow f4) used to eject a filled can K runs parallel to the pivoting axis 59 of the loading arm 50. This provides easy accessibility of the drawing frame 1 to the operative B without there being a can K in the region where the operative moves, or its transport equipment being an obstacle.
The invention is not restricted to the implementation illustrated. Further modifications within the framework of the patent claims are also part of the invention.
12

WE CLAIM:
1. A method for the manufacture of a carrier (5) for the bearing of drawing frame rollers (35, 36, 37) characterized in that a left and a right side brace (10) of the carrier (5) is cut from metal plate, where the cut edges (11) of the side braces (10) mentioned above resulting from the cutting procedure are used to support bearings (31, 32, 33) for the lower rollers (35, 36, 37) of the drawing frame (1).
2. A method according to Claim 1, characterized in that the side braces (10) are cut from metal plate by means of a laser.
3. A method according to one of the foregoing claims characterized in that the two side braces (10) are joined by at least one rib (20) that is oriented perpendicularly to the two side braces (10).
4. A method according to one of the foregoing claims characterized in that the minimum of one rib (20) is also cut from metal plate by means of a laser.
5. A method according to one of the foregoing claims characterized in that at least the cut edges (11) mentioned above do not require further mechanical work before mounting the bearings (31, 32, 33) for the lower rollers (35, 36, 37) mentioned above.
6. A method according to one of the foregoing claims characterized in that the side braces (10) are clamped at a number of locations together with the minimum of one rib (20) in a mounting jig, aligned, and then welded.
7. A method according to one of the foregoing claims characterized in that a laser is used for the welding.
8. A method according to one of the foregoing claims characterized in
that the side braces (10) have clamping surfaces opposite one
13

another and parallel in orientation, by means of which they are clamped in the mounting jig.
9 A method according to one of the foregoing claims characterized in that the cut edges (11) that are used to hold the bearings (31, 32) are used as clamping surfaces.
10 A method according to one of the foregoing claims characterized in that the side braces (10) are clamped with the minimum of one rib in at least three directions (f7, f7'; £8, f8'; f9, f9').
11 A method according to one of the foregoing claims characterized in that the side braces (10) are cut in such a way that a bearing (34) for a calender roller (38) following the lower rollers (35, 36, 37) can be fastened to it.
12 A method according to one of the foregoing claims characterized in that a laser is used to cut openings in the side braces (17, 19) for bearing the main drive shaft and/or countershaft.
13 A method according to one of the foregoing claims characterized in that the carrier is galvanized.
14 A method according to one of the foregoing claims characterized in that the carrier (5) is fastened onto a lower plate (7), preferably by means of laser welding.
15 The carrier of a drawing frame for bearing drawing frame rollers (35, 36, 37), in particular one manufactured according to one of the foregoing claims, characterized in that there are two cut side braces (10) and at least one rib (20), also manufactured from metal plate, linking the two side braces (10).
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16. A carrier according to the foregoing claim, characterized in that the two side braces (10) have laser-cut edges (11) that are used to mount the bearings (31, 32, 33) for the lower rollers (35, 36, 37) of the drawing frame (1).
17. A carrier according to one of the foregoing claims, characterized in that the bearings (31, 32, 33) of all the lower rollers (35, 36, 37) of the drawing frame (1) can be fastened to the side braces (10).
18. A carrier according to one of the foregoing claims characterized in that, in addition, the bearings (34) for a calender roller (38) that follows the drawing frame (1) can be fastened to the side braces (10).
19. A carrier according to one of the foregoing claims characterized in that at least the cut edges (11) mentioned above do not require mechanical work after the laser cutting prior to mounting the bearings (31, 32, 33) for the lower rollers (35, 36, 37).
20. A carrier according to one of the foregoing claims characterized in that the side braces (10) do not require any mechanical work at all after the laser cutting.
21. A carrier according to one of the foregoing claims characterized in that the minimum of one rib (20) is bent in such a way as substantially to follow, at least in part, the contours of the two side braces (10).
22. A carrier according to one of the foregoing claims characterized in that the underneath of the minimum of one rib (20) forms, at least in part, the wall (25) of a ventilation duct (27).
23. A carrier according to one of the foregoing claims characterized in that the bearings (31, 32, 33) of the lower rollers (35, 36, 37) located on the cut edges (11) of the side braces (20) are fixed by means of fastening elements (80) to the side braces (10) in such a way that they can be
moved.
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24. A carrier according to one of the foregoing claims characterized in that the bearings (31, 32, 33) for the lower rollers (35, 36, 37) mentioned above have at least one bearing surface with a hole (67) lying flat against the side faces of the side braces (10).
25. A carrier according to one of the foregoing claims characterized in that the two side braces (10) have slots (12, 13, 14) located opposite one another and aligned with one another, where fastening elements (80), favourably bolts, are provided which pass through the hole (67) in one of the bearing surfaces mentioned above on one side and through a slot (12,13,14) on the other side.
26. A carrier according to one of the foregoing claims characterized in that a common slot (12) is provided on each side brace (10) for the lower inlet roller (35) and the lower central roller (36).
27. A carrier according to one of the foregoing claims, characterized in that there are openings (17,19) in the side braces (10) for bearing the main drive shaft and the countershaft.
28. A carrier according to one of the foregoing claims characterized in that the carrier is galvanized once the side braces (10) and the rib (20) have been welded together.
29. The drawing frame of a spinning preparation machine, in particular a card, drawing frame or combing machine characterized by a carrier (5) according to one of the foregoing claims.
30. The drawing frame according to the foregoing claim, characterized in that the frame is aligned at an incline, where the fibre sliver or fibre slivers (FB) run, from the point of view of the direction (f3), at an inclination downwards through the drawing frame.
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A drawing frame according to one of the foregoing claims characterized in that the drawing frame (1) is inclined to the horizontal.
A drawing frame according to one of the foregoing claims characterized in that the drawing frame (1) is inclined to the horizontal at an angle between 40° and 75°.
A drawing frame according to one of the foregoing claims, characterized in that the drawing frame is a 3-over-3 frame.
A spinning preparation machine, in particular a card, drawing frame or combing machine, characterized by at least one drawing frame (1) according to one of the foregoing claims.
14th day of May 2007
ASEAN SAARC PATENT & TRADE MARK SERVICES
AGENT FOR RIETERINGOLSTADT SPINNEREIMASCHINENBAU AG
17

ABSTRACT
A method for the manufacture of the carrier (5) for bearing the drafting frame rollers (35, 36, 37) of a drafting frame (1) is disclosed, in which a left hand and a right-hand side brace (10) of the carrier (5) are cut from metal plate, in which the cut edges (11) resulting from the cutting process on the previously mentioned side braces (10) are used to support bearings (31, 32, 33) for the lower rollers (35, 36, 37) of the drawing frame (1). Equally the invention includes a carrier of this type and a drawing frame having such a carrier.
(Figure 4)
To
The Controller of Patent
The Patent Office
18
Mumbai.


Documents:

956-mum-2007-abstract(22-5-2007).pdf

956-MUM-2007-ABSTRACT(31-3-2011).pdf

956-mum-2007-abstract(granted)-(29-4-2011).pdf

956-mum-2007-abstract.doc

956-mum-2007-abstract.pdf

956-mum-2007-cancelled pages(14-6-2010).pdf

956-MUM-2007-CANCELLED PAGES(31-3-2011).pdf

956-mum-2007-claims(22-5-2007).pdf

956-MUM-2007-CLAIMS(AMENDED)-(11-4-2011).pdf

956-MUM-2007-CLAIMS(AMENDED)-(14-6-2010).pdf

956-MUM-2007-CLAIMS(AMENDED)-(31-3-2011).pdf

956-mum-2007-claims(granted)-(29-4-2011).pdf

956-MUM-2007-CLAIMS(MARKED COPY)-(11-4-2011).pdf

956-mum-2007-claims(marked copy)-(31-3-2011).pdf

956-mum-2007-claims.doc

956-mum-2007-claims.pdf

956-mum-2007-correspondence(11-7-2007).pdf

956-MUM-2007-CORRESPONDENCE(14-6-2010).pdf

956-MUM-2007-CORRESPONDENCE(15-5-2007).pdf

956-MUM-2007-CORRESPONDENCE(17-11-2009).pdf

956-MUM-2007-CORRESPONDENCE(5-3-2012).pdf

956-mum-2007-correspondence(ipo)-(19-11-2009).pdf

956-mum-2007-correspondence(ipo)-(2-5-2011).pdf

956-mum-2007-correspondence-others.pdf

956-mum-2007-descripiton (complete).pdf

956-mum-2007-description(complete)-(22-5-2007).pdf

956-mum-2007-description(granted)-(29-4-2011).pdf

956-mum-2007-drawing(22-5-2007).pdf

956-MUM-2007-DRAWING(31-3-2011).pdf

956-mum-2007-drawing(granted)-(29-4-2011).pdf

956-mum-2007-drawings.pdf

956-MUM-2007-ENGLISH TRANSLATION CERTIFICATE(31-3-2011).pdf

956-MUM-2007-ENGLISH TRANSLATION(14-6-2010).pdf

956-mum-2007-form 1(11-7-2007).pdf

956-mum-2007-form 1(22-5-2007).pdf

956-MUM-2007-FORM 1(5-3-2012).pdf

956-MUM-2007-FORM 13(5-3-2012).pdf

956-mum-2007-form 2(granted)-(29-4-2011).pdf

956-mum-2007-form 2(title page)-(22-5-2007).pdf

956-MUM-2007-FORM 2(TITLE PAGE)-(5-3-2012).pdf

956-mum-2007-form 2(title page)-(granted)-(29-4-2011).pdf

956-MUM-2007-FORM 26(31-3-2011).pdf

956-MUM-2007-FORM 26(5-3-2012).pdf

956-MUM-2007-FORM 3(14-6-2010).pdf

956-MUM-2007-FORM 3(5-3-2012).pdf

956-MUM-2007-FORM 5(22-5-2007).pdf

956-MUM-2007-FORM 5(5-3-2012).pdf

956-mum-2007-form-18.pdf

956-mum-2007-form-2.doc

956-mum-2007-form-2.pdf

956-mum-2007-form-26.pdf

956-mum-2007-form-3.pdf

956-mum-2007-form-5.pdf

956-MUM-2007-MARKED COPY(31-3-2011).pdf

956-mum-2007-other document(22-5-2007).pdf

956-MUM-2007-OTHER DOCUMENT(5-3-2012).pdf

956-MUM-2007-PETITION UNDER RULE 137(14-6-2010).pdf

956-MUM-2007-PETITION UNDER RULE 137(31-3-2011).pdf

956-MUM-2007-REPLY TO EXAMINATION REPORT(14-6-2010).pdf

956-MUM-2007-REPLY TO HEARING(11-4-2011).pdf

956-MUM-2007-REPLY TO HEARING(31-3-2011).pdf

956-MUM-2007-SPECIFICATION(AMENDED)-(14-6-2010).pdf

956-MUM-2007-SPECIFICATION(AMENDED)-(31-3-2011).pdf

abstract1.jpg


Patent Number 247658
Indian Patent Application Number 956/MUM/2007
PG Journal Number 18/2011
Publication Date 06-May-2011
Grant Date 29-Apr-2011
Date of Filing 22-May-2007
Name of Patentee RIETER INGOLSTADT SPINNEREIMASCHINENBAU AG
Applicant Address FRIEDRICH-EBERT-STRASSE 84, D-85055 INGOLSTADT
Inventors:
# Inventor's Name Inventor's Address
1 WOLFGANG GOEHLER JURASTRASSE 2, D-85101 LENTING.
PCT International Classification Number B21D47/01
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA