CN209759880U - Edge-closing and cutting integrated mechanism for double-layer cloth - Google Patents

Abstract

The utility model relates to a closed edge cutting and cutting integrated mechanism of double-layer cloth, which comprises a frame and two rolls of cloth rolls, wherein the frame is provided with a guide cylinder, a conveying cylinder and a tensioning device which are matched with the double-layer cloth, the frame is provided with a blank holder device at the position between the conveying cylinder and the cloth rolls, the cutting device is arranged between the conveying cylinder and the tensioning device, the blank holder device comprises a blank holder arranged on the frame, the blank holder is provided with a blank holder rotating shaft, the two ends of the blank holder rotating shaft are sleeved with a blank holder sleeve matched with the side edge of the double-layer cloth, a blank holder stitching device is matched below the blank holder sleeve, the blank holder stitching device is a stitching device which enables the double-layer cloth to be stitched by a hot pressing mode, the blank holder rotating shaft is connected with a blank holder driving wheel, the blank holder driving wheel is connected with a blank holder driving component through a blank holder driving belt, the utility model discloses a cloth piece on the two rolls, and can be cut according to a certain length by a cutting device between the tension device and the conveying cylinder.

Description

Edge-closing and cutting integrated mechanism for double-layer cloth

Technical Field

The invention relates to the field of cloth processing, in particular to a combined edge cutting and breaking integrated mechanism for double-layer cloth.

Background

In cloth processing field, all be two-layer structure usually, need carry out the pressfitting on its both sides or sew up, then unified sewing up required product again on, present double-deck cloth structure all cuts earlier, then says that two cloth pieces place on the product and aim at the position well, later sews up, and present mode needs to put the cloth piece of tailorring of a slice, still need put the location to double-deck cloth simultaneously, wastes time and energy.

Disclosure of Invention

The invention aims to provide an edge-closing and cutting integrated mechanism for double-layer cloth, which can be used for edge-pressing cloth pieces on two rolls of cloth to form the double-layer cloth, can be cut according to a certain length through a cutting device between a tensioning device and a conveying cylinder, can realize continuous automatic processing and greatly improves the processing efficiency.

In order to achieve the above purpose, the invention adopts the technical scheme that: the double-layer cloth edge-closing and cutting integrated mechanism comprises a rack and two cloth rolls, wherein a guide cylinder, a conveying cylinder and a tensioning device which are matched with the double-layer cloth are arranged on the rack, an edge-pressing device matched with the double-layer cloth is arranged at the position, between the conveying cylinder and the cloth rolls, of the rack, a cutting device is arranged between the conveying cylinder and the tensioning device, the edge-pressing device comprises an edge-pressing seat arranged on the rack, an edge-pressing rotating shaft is arranged on the edge-pressing seat, two ends of the edge-pressing rotating shaft are sleeved with edge-pressing sleeves matched with the side edges of the double-layer cloth, an edge-pressing stitching device is matched below the edge-pressing sleeves, the edge-pressing stitching device is a stitching device which enables the double-layer cloth to be stitched in a hot pressing mode, the edge-pressing rotating shaft is connected with an edge-pressing driving wheel, the edge-pressing driving wheel is connected with an edge-pressing driving component through an edge-pressing driving belt, The blank driving part, the driving part of the conveying cylinder and the cutting device are connected to a controller.

Preferably, the number of the conveying cylinders is two, the conveying cylinders are respectively attached to two sides of the double-layer cloth, a conveying cylinder limiting screw sleeve is sleeved outside the conveying cylinder, the lower portion of the conveying cylinder limiting screw sleeve is matched with a screw sleeve clamping rod arranged on the frame, and steel wires inclining inwards and downwards are arranged on two sides of the conveying cylinder limiting screw sleeve.

Preferably, the tensioning device comprises a tensioning positioning cylinder arranged on the frame and a tensioning pressing rotating block with the lower end hinged on the frame, the upper end of the tensioning pressing rotating block is connected with a tensioning pressing cylinder matched with the tensioning positioning cylinder, the middle of the tensioning pressing rotating block is hinged with a cylinder push rod of a tensioning pressing cylinder, and a cylinder body of the tensioning pressing cylinder is hinged on the frame.

Preferably, the frame on be provided with the taut location cylinder of left and right sides trend, taut location cylinder be connected with taut locating piece, and taut locating piece and the cooperation of taut location slide rail in the frame, taut locating section of thick bamboo install on taut locating piece.

Preferably, cutting device including setting up the mount pad that cuts off in the frame, the mount pad that cuts off on be provided with the slide rail that cuts off of a conveyor section of thick bamboo horizontal trend, the slide rail cooperation that cuts off have and cut off the sliding seat, the cooperation of the movable area that cuts off that sets up in cutting off sliding seat and the frame, the movable area that cuts off be connected with and cut off driver part, the movable seat that cuts off on be provided with cutters, the movable seat that cuts off on still be provided with and cut off movable stopper, and cut off and be provided with on the mount pad with cutter movable stopper complex spacing post, the driver part that cuts off be connected to the controller.

Preferably, the cutters include a cutter mounting seat mounted on the cutting movable seat, the cutter mounting seat is provided with a cutter through a cutter rotating shaft with a vertical trend, the cutter mounting seat is further provided with a cutter transmission shaft with a horizontal trend, the cutter transmission shaft and the cutter rotating shaft are meshed through a bevel gear, the other end of the cutter transmission shaft is provided with a cutter transmission gear, the cutter transmission gear is meshed with a cutter transmission rack below the cutting mounting seat, and the cutter transmission rack is parallel to a cutting slide rail.

Preferably, the cutting movable seat is provided with a cutting feeding cylinder, the cutting feeding cylinder is connected with a cutting feeding block, the cutting feeding block is matched with the cutting movable belt and can be buckled in a rack and tooth block mode and can move relatively along the direction of the cutting feeding cylinder, the cutter mounting seat is mounted on the cutting feeding block, and the cutting feeding cylinder is connected to the controller.

Preferably, the cut-off feed cylinder is communicated with a cut-off feed air pump arranged on the cut-off movable seat and is also communicated with a cut-off feed pressure gauge, and the cut-off feed air pump and the cut-off feed pressure gauge are connected to the controller.

Preferably, the cutting movable seat is provided with a cutting feed guide rod which penetrates through the cutting feed block and penetrates into the cutter mounting seat, a feeding clamping mounting groove which is perpendicular to the cutting feed guide rod is formed in the cutter mounting seat, a feeding clamping spring is arranged in the feeding clamping mounting groove, the feeding clamping spring is connected with a feeding clamping block, the feeding clamping block is an equilateral triangle block, the cutting feed guide rod is provided with two feeding limiting grooves which are matched with the feeding clamping block, one side, opposite to the two feeding limiting grooves, is an inclined plane with the same shape as the waist edge of the feeding clamping block, and the other side is a vertical plane.

Drawings

FIG. 1 is a schematic front perspective view of a double-layer fabric edge-closing and cutting integrated mechanism;

FIG. 2 is a side perspective view of a double layer fabric edge closing and cutting integrated mechanism;

FIG. 3 is a perspective view of the severing device, the delivery cartridge and the tensioning device;

FIG. 4 is a schematic perspective view of the edge pressing apparatus;

FIG. 5 is a perspective view of the tensioning device;

FIG. 6 is a perspective view of the cutting device;

Fig. 7 is a schematic view of the cutting feed guide and the cutter mount.

The text labels shown in the figures are represented as: 1. a frame; 2. a cloth roll; 3. a guide cylinder; 4. a blank pressing device; 5. a delivery cartridge; 6. a tensioning device; 8. A cutting device; 9. a conveying cylinder limiting screw sleeve; 10. a threaded sleeve clamping rod; 11. a side pressing seat; 12. a blank pressing rotating shaft; 13. pressing the edge sleeve; 14. a blank pressing stitching instrument; 15. a blank pressing transmission wheel; 16. pressing the transmission belt; 20. double-layer cloth; 21. tensioning a positioning cylinder; 22. tensioning the positioning block; 23. tensioning the positioning cylinder; 24. tensioning a material pressing rotating block; 25. drawing and pressing the charging barrel; 26. tensioning a material pressing cylinder; 41. cutting off the mounting seat; 42. cutting off the slide rail; 43. cutting off the movable seat; 44. cutting off the feeding cylinder; 45. cutting off the feeding block; 46. cutting off the movable belt; 47. a cutter mounting seat; 48. a cutter; 49. a cutter transmission shaft; 50. a cutter transmission gear; 51. a cutter driving rack; 52. cutting off the feeding guide rod; 53. cutting off the movable limiting block; 54. cutting off the air feeding pump; 55. cutting off the feeding pressure gauge; 56. feeding a limiting groove; 57. a feeding clamping position mounting groove; 58. a feeding clamping spring; 59. the block of cards is fed.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 4, the specific structure of the present invention is: a double-layer cloth edge-closing cutting integrated mechanism comprises a frame 1 and two cloth roll 2, wherein a guide cylinder 3, a conveying cylinder 5 and a tensioning device 6 which are matched with double-layer cloth are arranged on the frame 1, an edge-pressing device 4 which is matched with double-layer cloth 20 is arranged at the position of the frame 1 between the conveying cylinder 5 and the cloth roll 2, a cutting device 8 is arranged between the conveying cylinder 5 and the tensioning device 6, the edge-pressing device comprises an edge-pressing seat 11 arranged on the frame 1, an edge-pressing rotating shaft 12 is arranged on the edge-pressing seat 11, two ends of the edge-pressing rotating shaft 12 are sleeved with edge-pressing sleeves 13 which are matched with the side edges of the double-layer cloth 20, an edge-pressing stitching device 14 is matched below the edge-pressing sleeves 13, the edge-pressing stitching device 14 is a stitching device which enables the double-layer cloth to be stitched in a hot pressing mode, the edge-pressing rotating shaft 12 is connected with an edge-pressing driving wheel 15, and the edge-pressing driving wheel 15 is connected with an edge-pressing driving part through, the binder stitcher 14, binder drive components, drive components for the transport cylinder 5, and the cutting device are connected to a controller.

The cloth of two cloth rolls firstly passes through the guide cylinders and is matched with the conveying cylinder 4, then the conveying cylinder 4 is driven by the conveying driving component to convey the double-layer cloth 20, in the conveying process, the edge pressing device positioned between the two guide cylinders 3 synchronously operates, the edge pressing driving component drives the edge pressing rotating shaft to rotate, then the edge pressing sleeve drives the double-layer cloth to downwards press and contact the edge pressing stitching device 14 to stitch, the edge pressing stitching device generally adopts ultrasonic to generate heat for heat sealing, the structure is simple, a certain double-layer cloth driving effect can be achieved, the starting section of the double-layer cloth 20 can pass through the tensioning device, when the section without edge sealing at the beginning exceeds the cutting device, the double-layer cloth 20 is tensioned by the tensioning device, then the starting section is cut by the cutting device, and then the conveying device continues to convey, after the cloth is conveyed for a certain distance, the cloth is tensioned by the tensioning device 8 again, and then the upper part of the longitudinally pressed part is cut off by the cutting device, so that the treatment of the double-layer cloth is completed.

As shown in fig. 1-3, the number of the conveying cylinders 5 is two, and the conveying cylinders are respectively attached to two sides of the double-layer fabric, a conveying cylinder limiting screw sleeve 9 is sleeved outside the conveying cylinder 5, the lower portion of the conveying cylinder limiting screw sleeve 9 is matched with a screw sleeve clamping rod 10 arranged on the rack 1, and two sides of the conveying cylinder limiting screw sleeve 9 are steel wires which are inclined inwards and downwards.

The design of the conveying cylinder limiting screw sleeve and the screw sleeve clamping rod can prevent the conveying cylinder from displacing during conveying, and meanwhile, good cloth limiting and guiding effects can be achieved when the conveying cylinder is cut off.

As shown in fig. 5, the tensioning device 6 includes a tensioning positioning cylinder 23 disposed on the frame 1 and a tensioning pressing rotary block 24 whose lower end is hinged on the frame 1, the upper end of the tensioning pressing rotary block 24 is connected with a tensioning pressing cylinder 25 matched with the tensioning positioning cylinder 23, the middle of the tensioning pressing rotary block 24 is hinged with a cylinder push rod of a tensioning pressing cylinder 26, and the cylinder body of the tensioning pressing cylinder 26 is hinged on the frame 1.

When needing to compress tightly, promote taut pressure material commentaries on classics piece 24 and rotate to taut location section of thick bamboo 23 direction through taut pressure material cylinder 26, and then can make the drawing compress tightly feed cylinder 25 and compress tightly double-deck cloth on taut location section of thick bamboo 23, accomplish the take-up of double-deck cloth, conveniently cut off and vertical pressfitting operation to can conveniently open, the transport of the cloth that can not influence.

As shown in fig. 5, a tensioning and positioning cylinder 21 moving left and right is arranged on the frame 1, the tensioning and positioning cylinder 21 is connected with a tensioning and positioning block 22, the tensioning and positioning block 22 is matched with a tensioning and positioning slide rail on the frame 1, and a tensioning and positioning cylinder 23 is installed on the tensioning and positioning block 22.

With the taut locating section of thick bamboo setting on the taut locating piece that can move about, can adjust the taut position of double-deck cloth, and then can adjust the inclination that tight cloth was located, make that it can be better with cutting device cooperation.

As shown in fig. 6, the cutting device 8 includes a cutting mounting seat 41 disposed on the frame 1, the cutting mounting seat 41 is provided with a cutting slide rail 42 extending horizontally from the conveying cylinder 5, the cutting slide rail 42 is matched with a cutting movable seat 43, the cutting movable seat is matched with a cutting movable belt 46 disposed on the frame 1, the cutting movable belt 46 is connected with a cutting driving part, the cutting movable seat 43 is provided with a cutter device, the cutting movable seat 43 is further provided with a cutting movable limit block 53, a limit column matched with the cutting movable limit block 53 is disposed on the cutting mounting seat 41, and the cutting driving part is connected to the controller.

When cutting is needed, the cutter device is started, then the cutting driving part drives the cutting movable belt 46 to move, and further the cutting movable seat 43 moves along the longitudinal direction, so that the cutter device cuts off the double-layer cloth, and further the processing of the double-layer cloth is completed.

As shown in fig. 6, the cutter device includes a cutter mounting seat 47 mounted on the cutting movable seat 43, the cutter mounting seat 47 is provided with a cutter 48 through a cutter rotating shaft in a vertical direction, the cutter mounting seat 47 is further provided with a cutter transmission shaft 49 in a horizontal direction, the cutter transmission shaft 49 is meshed with the cutter rotating shaft through a bevel gear, the other end of the cutter transmission shaft 49 is provided with a cutter transmission gear 50, the cutter transmission gear 50 is meshed with a cutter transmission rack 51 below the cutting mounting seat 41, and the cutter transmission rack 51 is parallel to the cutting slide rail 42.

The specific operation of the cutter device is as follows, when the movable seat is cut off to drive the cutter mounting seat to move longitudinally, the cutter transmission gear 50 and the cutter transmission rack 51 are meshed with each other to drive the cutter transmission gear 50 to rotate, so that the bevel gear drives the cutter rotating shaft to rotate, the rotation of the cutter is realized, the longitudinal movement of the movable seat is ingeniously utilized to serve as the power for driving the cutter, the synchronous operation of the longitudinal movement and the cutter is realized, and the structure is simplified.

as shown in fig. 6, the cutting movable base 43 is provided with a cutting feed cylinder 44, the cutting feed cylinder 44 is connected with a cutting feed block 45, the cutting feed block 45 is matched with a cutting movable belt 46, and is engaged with a gear block by a rack and a gear block and can relatively move along the direction of the cutting feed cylinder 44, the cutter mounting base 47 is mounted on the cutting feed block 45, and the cutting feed cylinder 44 is connected with a controller.

Can drive through cutting off the feed cylinder and cut off feed block and cutter mount pad synchronous feeding, can not influence holistic longitudinal movement simultaneously, can adjust the cutter about the position, and then can realize cutter and the more good cooperation of double-deck cloth.

As shown in fig. 6, the cut-off feed cylinder 44 communicates with a cut-off feed air pump 54 provided on the cut-off movable seat 43 and, at the same time, communicates with a cut-off feed pressure gauge 55, and the cut-off feed air pump 54 and the cut-off feed pressure gauge 55 are connected to a controller.

The design that the feed air pump is matched with the feed pressure gauge can avoid the phenomenon that the feed amplitude of the feed air cylinder is too large, so that the cutter transmission gear and the cutter transmission rack are dislocated.

As shown in fig. 7, the cutting movable seat 43 is provided with a cutting feed guide rod 52 penetrating through the cutting feed block 45 and into the cutter mounting seat 47, the cutter mounting seat 47 is provided with a feed position-clamping mounting groove 57 perpendicular to the cutting feed guide rod 52, the feed position-clamping mounting groove 57 is internally provided with a feed position-clamping spring 58, the feed position-clamping spring 58 is connected with a feed position-clamping block 59, the feed position-clamping block 59 is an equilateral triangle block, the cutting feed guide rod 52 is provided with two feed position-limiting grooves 56 matched with the feed position-clamping block 59, and one side of the two feed position-limiting grooves 56 opposite to each other is an inclined plane with the same shape as the waist side of the feed position-clamping block 59, and the other side is a vertical plane.

Through the shape design of the feeding limiting grooves 56 and the feeding clamping block 59, the feeding clamping block 59 can be ensured not to exceed the two feeding limiting grooves 56 necessarily, and further the position of the cutter mounting seat can be accurately limited, so that the dislocation of a cutter transmission gear and a cutter transmission rack is avoided; when the cutter mounting seat feeds outwards, the feeding clamping block 59 is matched with the feeding limiting groove 56 on the inner side in an inclined plane and can be separated from the feeding limiting groove on the right side, so that the cutter mounting seat can feed until the feeding clamping block 59 enters the feeding limiting groove 56 on the outer side, and the feeding clamping block cannot realize continuous feeding of the compression spring due to the vertical plane, further performs position limitation, and has the same motion principle when feeding inwards.

it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principle and embodiments of the present invention have been described herein by way of specific examples, which are provided only to help understand the method and the core idea of the present invention, and the above is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can also be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims (9)

1. A double-layer cloth edge-closing cutting-off integrated mechanism comprises a rack (1) and two cloth roll (2), and is characterized in that a guide cylinder (3), a conveying cylinder (5) and a tensioning device (6) which are matched with double-layer cloth are arranged on the rack (1), an edge pressing device (4) which is matched with the double-layer cloth (20) is arranged at the position of the rack (1) between the conveying cylinder (5) and the cloth roll (2), a cutting device (8) is arranged between the conveying cylinder (5) and the tensioning device (6), the edge pressing device comprises an edge pressing seat (11) arranged on the rack (1), an edge pressing rotating shaft (12) is arranged on the edge pressing seat (11), edge pressing sleeves (13) which are matched with the side edges of the double-layer cloth (20) are sleeved at the two ends of the edge pressing rotating shaft (12), and an edge pressing stitching device (14) is matched below the edge pressing sleeves (13), the edge pressing stitching device (14) is a stitching device which enables double-layer cloth to be stitched in a hot pressing mode, the edge pressing rotating shaft (12) is connected with an edge pressing driving wheel (15), the edge pressing driving wheel (15) is connected with an edge pressing driving part through an edge pressing driving belt (16), and the edge pressing stitching device (14), the edge pressing driving part, the driving part of the conveying cylinder (5) and the cutting device are connected to a controller.

2. The edge-closing and cutting integrated mechanism for the double-layer cloth according to claim 1, wherein the number of the conveying cylinders (5) is two, the conveying cylinders are respectively attached to two sides of the double-layer cloth, conveying cylinder limiting screw sleeves (9) are sleeved outside the conveying cylinders (5), the lower portions of the conveying cylinder limiting screw sleeves (9) are matched with screw sleeve clamping rods (10) arranged on the rack (1), and steel wires inclining inwards and downwards are arranged on two sides of the conveying cylinder limiting screw sleeves (9).

3. The edge-closing and cutting integrated mechanism for the double-layer cloth according to claim 1, wherein the tensioning device (6) comprises a tensioning positioning cylinder (23) arranged on the frame (1) and a tensioning pressing rotary block (24) with the lower end hinged on the frame (1), the upper end of the tensioning pressing rotary block (24) is connected with a tensioning pressing cylinder (25) matched with the tensioning positioning cylinder (23), the middle part of the tensioning pressing rotary block (24) is hinged with a cylinder push rod of a tensioning pressing cylinder (26), and a cylinder body of the tensioning pressing cylinder (26) is hinged on the frame (1).

4. the edge-closing and cutting integrated mechanism for the double-layer cloth according to claim 3 is characterized in that a tensioning and positioning cylinder (21) moving left and right is arranged on the rack (1), the tensioning and positioning cylinder (21) is connected with a tensioning and positioning block (22), the tensioning and positioning block (22) is matched with a tensioning and positioning slide rail on the rack (1), and a tensioning and positioning cylinder (23) is installed on the tensioning and positioning block (22).

5. The edge-closing and cutting integrated mechanism for double-layer cloth according to claim 1, the cutting device (8) comprises a cutting mounting seat (41) arranged on the frame (1), a cutting slide rail (42) which is in horizontal direction with the conveying cylinder (5) is arranged on the cutting mounting seat (41), the cutting slide rail (42) is matched with a cutting movable seat (43), the cutting movable seat is matched with a cutting movable belt (46) arranged on the frame (1), the cutting movable belt (46) is connected with a cutting driving component, a cutter device is arranged on the cutting movable seat (43), the cutting movable seat (43) is also provided with a cutting movable limit block (53), and a limiting column matched with the movable cutter limiting block (53) is arranged on the cutting mounting seat (41), and the cutting driving part is connected to the controller.

6. The mechanism for closing and cutting the edges of the double-layer cloth according to claim 5, wherein the cutter device comprises a cutter mounting seat (47) arranged on the cutting movable seat (43), a cutter (48) is arranged on the cutter mounting seat (47) through a cutter rotating shaft in a vertical direction, a cutter transmission shaft (49) in a horizontal direction is further arranged on the cutter mounting seat (47), the cutter transmission shaft (49) is meshed with the cutter rotating shaft through a bevel gear, a cutter transmission gear (50) is arranged at the other end of the cutter transmission shaft (49), the cutter transmission gear (50) is meshed with a cutter transmission rack (51) below the cutting mounting seat (41), and the cutter transmission rack (51) is parallel to the cutting slide rail (42).

7. The mechanism for edging and cutting off double-layer cloth according to claim 6, wherein the cutting movable seat (43) is provided with a cutting feeding cylinder (44), the cutting feeding cylinder (44) is connected with a cutting feeding block (45), the cutting feeding block (45) is matched with the cutting movable belt (46) and is buckled in a rack-and-pinion mode and can move relatively along the direction of the cutting feeding cylinder (44), the cutter mounting seat (47) is mounted on the cutting feeding block (45), and the cutting feeding cylinder (44) is connected to a controller.

8. a double cloth close-up cutting integrated mechanism according to claim 7, characterized in that the cutting feed air cylinder (44) is connected with a cutting feed air pump (54) arranged on the cutting movable seat (43) and is also connected with a cutting feed pressure gauge (55), and the cutting feed air pump (54) and the cutting feed pressure gauge (55) are connected to a controller.

9. The edge-closing and cutting integrated mechanism for double-layer cloth according to claim 7, characterized in that a cutting feed guide rod (52) penetrating through a cutting feed block (45) and into a cutter mounting seat (47) is arranged on the cutting movable seat (43), a feeding clamping mounting groove (57) perpendicular to the cutting feed guide rod (52) is formed in the cutter mounting seat (47), a feeding clamping spring (58) is arranged in the feeding clamping mounting groove (57), the feeding clamping spring (58) is connected with a feeding clamping block (59), the feeding clamping block (59) is an equilateral triangle block, two feeding limit grooves (56) matched with the feeding clamping block (59) are arranged on the cutting feed guide rod (52), and the opposite side of the two feeding limit grooves (56) is an inclined surface with the same shape as the waist edge of the feeding clamping block (59), the other side is a vertical surface.