A cutting mechanism for a loom

Abstract

The present invention discloses a trimming mechanism for a loom, comprising a chassis, a trimming assembly being arranged on the chassis, guide roller assemblies being arranged on the chassis on the left and right sides of the trimming assembly, respectively, the trimming assembly comprising a bracket and mounting blocks mounted on the left and right sides of the bracket, rotating blocks being rotatably arranged on the mounting blocks, trimming machines being arranged on the rotating blocks, and first driving mechanisms being arranged on the mounting blocks for driving the rotating blocks to swing back and forth left and right. The first driving mechanism can drive the rotating blocks to swing back and forth left and right, so that the trimming machines can cut the edges of the cloth into curved shapes during the process of conveying the cloth forward, thereby expanding the scope of use thereof.

Description

Technical Field

[0001] The invention relates to the field of cloth processing, and in particular to an edge trimming mechanism for a loom. Background Art

[0002] Nowadays, the use of looms is more common in life. Looms have achieved remarkable results in improving fabrics and increasing the efficiency of looms. After weaving, the loom needs to cut off the rough edges of the cloth, and a trimming device is usually used to assist.

[0003] The Chinese patent with patent number: CN216551296U discloses a trimming mechanism for a loom, including a chassis and a door, a base is symmetrically installed on the top of the chassis by bolts, a vertical plate is welded on the upper surface of the base, a connecting block is provided between the vertical plates, and guide rods are symmetrically fixedly connected between the connecting block and the vertical plates, a screw rod is installed between the guide rods, a slider is installed on the outer wall of the guide rod, a motor is installed at the bottom of the slider, a blade is installed at the power output end of the motor, a feeding port is opened at the top edge of the chassis, a collecting box is detachably connected to the inside of the chassis, linear slides are installed on both sides of the top of the collecting box, a material guide plate is installed on the movable part of the linear slide, and a straight hole is opened on the surface of the material guide plate.

[0004] Although the above-mentioned loom trimming mechanism can trim the two sides of the cloth through the blade, it can only perform straight line cutting. Now, due to the needs of some scenes, it is necessary to make some curve shapes on both sides of the cloth. The above-mentioned loom trimming mechanism has a relatively simple function and cannot perform curve cutting on both sides of the cloth. Summary of the invention

[0005] In order to expand the scope of use and meet the demand for curved shapes on both sides of the cloth, the present application provides a trimming mechanism for a loom.

[0006] The present application provides a loom trimming mechanism that adopts the following technical solution:

[0007] A trimming mechanism for a loom comprises a chassis, a trimming assembly is arranged on the chassis, guide roller assemblies are arranged on the chassis on the left and right sides of the trimming assembly respectively, the trimming assembly comprises a bracket and mounting blocks mounted on the left and right sides of the bracket, rotating blocks are rotatably arranged on the mounting blocks, trimming machines are arranged on the rotating blocks, and the mounting blocks are provided with a first driving mechanism for driving the rotating blocks to swing back and forth left and right.

[0008] By adopting the above technical solution, the first driving mechanism can drive the rotating block to swing back and forth, so that the trimming machine can cut the edge of the cloth into a curved shape during the process of conveying the cloth forward, thereby expanding its scope of use.

[0009] Optionally, the mounting blocks are all connected to the bracket in a transverse sliding manner, and the bracket is provided with a second driving mechanism for driving the mounting blocks to move back and forth left and right.

[0010] By adopting the above technical solution, the second driving mechanism can drive the mounting block to move back and forth laterally, so that the rotating block can move back and forth laterally while swinging back and forth left and right, thereby cutting out more shapes with different curves to meet more needs and further expand its scope of use.

[0011] Optionally, the second driving mechanism includes a double-threaded screw, the threads on the left and right sides of the double-threaded screw have opposite rotation directions, the two mounting blocks are respectively threadedly connected to one of the thread segments of the double-threaded screw, the double-threaded screw is provided with a first gear, the bracket is slidably connected to a first rack front and back, the first rack and the first gear are meshed with each other, a rotating disk is rotatably provided in the bracket, a connecting rod is provided between the rotating disk and the first rack, which drives the first rack to reciprocate back and forth as the rotating disk rotates, the connecting rod is rotatably connected to the rotating disk and the first rack respectively, the rotating point between the connecting rod and the rotating disk and the axis of the rotating disk are staggered with each other, and the bracket is provided with a driving motor to drive the rotating disk to rotate.

[0012] By adopting the above technical solution, the driving motor can drive the rotating disk to rotate. After the rotating disk rotates, it can drive the first rack to reciprocate back and forth, thereby driving the first gear and the double-threaded screw to reciprocate forward and reverse. After the double-threaded screw reciprocates forward and reverse, it can drive the mounting block to reciprocate left and right. Such a second driving mechanism has a stable structure and the mounting blocks on the left and right sides have high linkage.

[0013] Optionally, the first driving mechanism includes a second rack and a second gear, the second rack is fixed on the bracket, the rotating block is rotatably connected to the mounting block via a rotating shaft, the second gear is fixedly sleeved on the rotating shaft, the second rack is slidably passed through the mounting block, a reduction gear group is provided in the mounting block, and the second rack and the second gear are driven by the reduction gear group.

[0014] By adopting the above technical solution, when the second driving mechanism drives the mounting block to move back and forth left and right, the second gear inside the mounting block will rotate back and forth in forward and reverse directions driven by the first rack and the reduction gear set, thereby realizing the reciprocating left and right swing of the rotating block.

[0015] Optionally, the mounting block includes a block body and a sleeve body rotatably arranged in the block body, the sleeve body is threadedly connected to a double-threaded screw, a third gear is fixedly sleeved on the sleeve body, a rotating rod with a polygonal cross-section is rotatably provided on the bracket, a fourth gear is rotatably provided in the block body and meshes with the third gear, the fourth gear is slidably sleeved on the rotating rod, the fourth gear is provided with a polygonal hole matching the rotating rod, an end of the double-threaded screw extends outside the frame to form a first control end, an end of the rotating rod extends outside the bracket to form a second control end, and a limit switch is provided between the second control end and the bracket.

[0016] By adopting the above technical solution, when the rotation of the rotating rod and the fourth gear is restricted by the limit switch, the third gear and the sleeve body will also be restricted from rotating, so that in the process of rotating the double-threaded screw, the mounting block will move along the double-threaded screw, and the fourth gear will slide on the rotating rod; when the first control end is held by hand to limit the rotation of the double-threaded screw, and then the limit switch is turned on, and the second control end is held by hand to drive the rotating rod to rotate, when the double-threaded screw does not rotate, the mounting block will move along the double-threaded screw, so that the initial position of the mounting block can be adjusted to adapt to fabrics of different widths.

[0017] Optionally, the rotating rod includes an outer sleeve and an inner rod, the inner rod is rotatably and slidably arranged in the outer sleeve and both ends of the inner rod extend to the outside of the outer sleeve, the outer sleeve is provided with a first elongated through hole communicating with the interior thereof along its length direction, the inner rod is provided with a second elongated through hole along its length direction, the second elongated through hole is provided with a plurality of slots on its inner wall along its length direction, a protrusion is provided on the inner wall of the polygonal hole, the protrusion passes through the first elongated through hole and extends into the second elongated through hole, the width of the protrusion is greater than the width of the slot, the protrusion is provided with a slide slot, a one-way block is provided in the slide slot for sliding up and down, a first spring is provided in the slide slot, one end of the first spring is connected to the bottom of the one-way block, and the other end is connected to the bottom wall of the slide slot, and inclined surfaces are provided on the side walls opposite to each other of the two one-way blocks, an elastic reset member is provided between the outer sleeve and the inner rod, an offset groove is provided in the block body for the fourth gear to be separated from the third gear after sliding, and a second spring is provided in the offset groove.

[0018] By adopting the above technical solution, when the first control end is held by hand to limit the rotation of the double-threaded screw, and then the limit switch is turned on, the inner rod is turned by hand and then the inner rod is pushed, one of the one-way blocks will be snapped into the slot, so that the fourth gear corresponding to the one-way block will be separated from the third gear, and the other one-way block is not snapped into the slot, and the corresponding third gear and fourth gear are still meshed with each other, so that after the rotating rod is rotated, the initial position of one of the mounting blocks can be adjusted individually to meet the needs of more working conditions.

[0019] Optionally, the bracket includes a frame body and a lifting platform connected to the frame body and sliding up and down, and the chassis is provided with a cylinder for driving the lifting platform to move up and down.

[0020] By adopting the above technical solution, during the operation, the lifting platform is first raised by the cylinder, and then the cloth is passed through the guide roller assemblies on both sides respectively, and then the trimming machine is turned on, and the lifting platform is moved downward by the cylinder to cut the cloth. Such a setting can facilitate the cloth to be passed through the guide roller assemblies on both sides before trimming.

[0021] Optionally, the rotating disk includes a disk body and a slider, the disk body is provided with a sliding groove extending along its radial direction, the slider is slidably connected in the sliding groove, the slider is positioned by a bolt, and the connecting rod is rotationally connected to the slider.

[0022] By adopting the above technical solution, the sliding block can adjust the distance from the rotating point between the connecting rod and the rotating disk to the axis of the rotating disk, thereby adjusting the amplitude of the reciprocating movement of the first rack back and forth, and thus adjusting the amplitude of the reciprocating movement of the mounting block left and right to adapt to the needs of more working conditions.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: the edge cutting mechanism for the loom of the present application can cut the edge of the cloth into a curved shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereogram of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the second driving mechanism in the embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the first driving mechanism in an embodiment of the present application.

[0027] Figure 4 It is a schematic diagram between the third gear and the fourth gear in an embodiment of the present application.

[0028] Figure 5 It is a schematic diagram of the structure of the rotating rod in the embodiment of the present application.

[0029] Figure 6 It is a partial schematic diagram of the inner rod in the embodiment of the present application.

[0030] Figure 7 It is a schematic diagram used to represent a one-way card block in an embodiment of the present application.

[0031] Figure 8 It is a schematic diagram used to represent the dislocation groove in the embodiment of the present application.

[0032] Fig. 9 It is a schematic diagram of a rotating disk in an embodiment of the present application.

[0033] Description of reference numerals: 1, chassis; 2, guide roller assembly; 3, trimming assembly; 31, bracket; 311, frame; 312, lifting platform; 313, cylinder; 32, mounting block; 321, block; 322, sleeve; 33, rotating block; 34, trimming machine; 4, first driving mechanism; 41, second rack; 42, second gear; 43, reduction gear set; 5, second driving mechanism; 51, double-threaded screw; 52, first gear; 53, first rack; 54, rotating disk; 541, disk; 542, slider; 543, Slide groove; 55, connecting rod; 56, driving motor; 6, rotating shaft; 7, third gear; 8, rotating rod; 81, outer sleeve; 82, inner rod; 83, first long strip through hole; 84, second long strip through hole; 85, card slot; 86, protrusion; 9, fourth gear; 10, polygonal hole; 11, first control end; 12, second control end; 13, limit switch; 14, slide groove; 15, one-way card block; 16, first spring; 17, inclined surface; 18, elastic reset member; 19, offset groove; 20, second spring; 21, feed port. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-9 This application is described in further detail.

[0035] The present application embodiment discloses a trimming mechanism for a loom. Figure 1 and Figure 2 A trimming mechanism for a loom comprises a chassis 1, on which a trimming assembly 3 is arranged, guide roller assemblies 2 are respectively arranged on the chassis 1 on the left and right sides of the trimming assembly 3, a feeding port 21 communicating with the interior of the chassis 1 is arranged on the upper end surface of the chassis 1, and the guide roller assembly 2 on the discharge side is located between the feeding port 21 and the trimming assembly 3, so that the cloth woven on the loom passes through the guide roller assembly 2 on the feed side and then passes through the guide roller assembly 2 on the discharge side. The two guide roller assemblies 2 can straighten the cloth, and then the trimming assembly 3 trims the cloth, and at the same time, the cut surplus cloth passes through the guide roller assembly 2 on the discharge side and enters the chassis 1 from the feeding port 21, and the cut cloth will be wound onto the winding roller.

[0036] The guide roller assembly 2 comprises a support frame and two rotating rollers rotatably arranged on the support frame, and the cloth passes between the two rotating rollers.

[0037] The trimming assembly 3 includes a bracket 31 and mounting blocks 32 installed on the left and right sides of the bracket 31. The mounting blocks 32 are connected to the bracket 31 in a transverse sliding manner. A rotating block 33 is rotatably provided at the bottom of the mounting block 32. The rotating block 33 is provided with a trimming machine 34. The mounting block 32 is provided with a first driving mechanism 4 for driving the rotating block 33 to swing back and forth left and right. The bracket 31 is provided with a second driving mechanism 5 for driving the mounting block 32 to move back and forth left and right.

[0038] The edge trimmer 34 includes a blade rotatably disposed on a rotating block 33 and a motor driving the blade to rotate.

[0039] The second driving mechanism 5 includes a double-threaded screw 51, the threads on the left and right sides of the double-threaded screw 51 are in opposite rotation directions, and the two mounting blocks 32 are respectively threadedly connected to one of the thread segments of the double-threaded screw 51. After the double-threaded screw 51 rotates, the two mounting blocks 32 can be driven to move away from or approach each other. A first gear 52 is fixedly sleeved on the double-threaded screw 51, and a first rack 53 is slidably connected to the bracket 31 back and forth. The first rack 53 is meshed with the first gear 52. A rotating disk 54 is rotatably provided in the bracket 31, and a connecting rod 55 is provided between the rotating disk 54 and the first rack 53 for driving the first rack 53 to reciprocate back and forth as the rotating disk 54 rotates. The connecting rod 55 is rotatably connected to the rotating disk 54 and the first rack 53, respectively, and the rotating point between the connecting rod 55 and the rotating disk 54 and the axis of the rotating disk 54 are staggered with each other. A driving motor 56 for driving the rotating disk 54 to rotate is provided on the bracket 31. The driving motor 56 drives the rotating disk 54 to rotate. After the rotating disk 54 rotates, it can drive the first gear 52 to rotate back and forth. The reciprocating rotation of the first gear 52 can drive the double-threaded screw 51 to rotate forward and reverse. After the double-threaded screw 51 reciprocates forward and reverse, it can drive the mounting block 32 to move back and forth.

[0040] Reference Figure 2 and Figure 3 The first driving mechanism 4 includes a second rack 41 and a second gear 42. The second rack 41 is fixed on the bracket 31. The rotating block 33 is rotatably connected to the mounting block 32 through the rotating shaft 6. The rotating shaft 6 is fixedly connected to the rotating block 33. The rotating shaft 6 is rotatably connected to the mounting block 32. The second gear 42 is fixedly sleeved on the rotating shaft 6. The second rack 41 is slidably inserted into the mounting block 32. A reduction gear set 43 is provided inside the mounting block 32. The second rack 41 and the second gear 42 are driven by the reduction gear set 43. When the mounting block 32 moves back and forth on the bracket 31, the second gear 42 inside the mounting block 32 will rotate back and forth in a forward and reverse direction driven by the first rack 53 and the reduction gear set 43, thereby realizing the reciprocating left and right swing of the rotating block 33.

[0041] Reference Figure 2 and Figure 4The mounting block 32 includes a block body 321 and a sleeve body 322 rotatably arranged in the block body 321. The sleeve body 322 is threadedly connected with the double-threaded screw 51. The block body 321 is provided with a hole for the double-threaded screw 51 to rotate and pass through. The hole is communicated with the sleeve body 322. A third gear 7 is fixedly sleeved on the sleeve body 322. A rotating rod 8 with a hexagonal cross section is rotatably arranged on the bracket 31. A fourth gear 9 meshing with the third gear 7 is rotatably arranged in the block body 321. The fourth gear 9 is slidably sleeved on the rotating rod 8. The fourth gear 9 is provided with a polygonal hole 10 matching the rotating rod 8. The rotating rod 8 is penetrated in the block On the body 321, a through hole is provided on the block 321 for the rotating rod 8 to rotate, the end of the double-threaded screw 51 extends to the outside of the frame to form a first control end 11, and the end of the rotating rod 8 extends to the outside of the bracket 31 to form a second control end 12. A limit switch 13 is provided between the second control end 12 and the bracket 31. The limit switch 13 includes a screw, and an extension block is provided on the side wall of the second control end 12. The screw is threadedly connected to the extension block, and the inner end of the screw abuts against the bracket 31. After the screw is tightened, the limit switch 13 is closed, so that the rotating rod 8 cannot rotate. After the screw is loosened, the limit switch 13 is opened, and the rotating rod 8 can rotate freely. When the rotation of the rotating rod 8 and the fourth gear 9 is restricted by the limit switch 13, the third gear 7 and the sleeve 322 are also restricted from rotating. In this way, during the rotation of the double-threaded screw 51, the mounting block 32 will move along the double-threaded screw 51, and the fourth gear 9 will slide on the rotating rod 8; when the first operating end 11 is held by hand (a limit switch 13 can also be installed on the first operating end 11, so that the operator does not need to limit it by hand), the rotation of the double-threaded screw 51 is restricted, and then the limit switch 13 is turned on, and the second operating end 12 is held by hand to drive the rotating rod 8 to rotate, when the double-threaded screw 51 does not rotate, the mounting block 32 will move along the double-threaded screw 51, so that the initial position of the mounting block 32 can be adjusted to adapt to fabrics of different widths.

[0042] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8The rotating rod 8 includes an outer sleeve 81 and an inner rod 82. The inner rod 82 is rotatably and slidably arranged in the outer sleeve 81 and its two ends extend to the outside of the outer sleeve 81. The outer sleeve 81 is provided with a first elongated through hole 83 connected to the interior thereof along its length direction, and the inner rod 82 is provided with a second elongated through hole 84 along its length direction. The first elongated through hole 83 and the second elongated through hole 84 are connected to each other, and the second elongated through hole 84 is provided with a plurality of card grooves 85 on its inner wall along its length direction. A protrusion 86 is provided on the inner wall of the polygonal hole 10. The protrusion 86 passes through the first elongated through hole 83 and extends into the second elongated through hole 84. The width of the protrusion 86 is greater than the width of the card groove 85 (the protrusion 86 will not be clamped into the card groove 85). A sliding groove 14 is provided on the protrusion 86. A one-way card block 15 is provided in the sliding groove 14 to slide up and down. A first spring 16 is provided in the sliding groove 14. One end of the first spring 16 is connected to the one-way card The bottom of the block 15 is connected, and the other end is connected to the bottom wall of the slide groove 14. The side walls opposite to each other of the two one-way blocks 15 are provided with inclined surfaces 17, and the two inclined surfaces 17 face oppositely. An elastic reset member 18 is provided between the outer sleeve 81 and the inner rod 82. The elastic reset member 18 is a rubber rope. Under normal circumstances, the elastic reset member 18 can position the inner rod 82, so that the inner rod 82 is not easy to rotate and slide. The protrusion 86 can slide freely in the second long strip through hole 84, and the one-way block 15 will not be stuck in the slot 85. An offset groove 19 is provided in the block body 321 for the fourth gear 9 to be separated from the third gear 7 after sliding. A second spring 20 is provided in the offset groove 19. An end bearing can be installed on each side of the left and right sides of the fourth gear 9. The second spring 20 is pressed on an end bearing. The second spring 20 mainly resets the dislocated fourth gear 9 to make it re-engage with the third gear 7.

[0043] After limiting the rotation of the double-threaded screw 51, the limit switch 13 is turned on, the inner rod 82 is turned by hand and then pushed, one of the one-way blocks 15 will be clamped into the slot 85, and the corresponding fourth gear 9 will be pulled by the one-way block 15, so that the fourth gear 9 will be separated from the third gear 7; the other one-way block 15 will not pull the corresponding fourth gear 9 to move due to the action of the inclined surface 17 (the one-way block 15 will move up and down when passing through the slots 85), and the third gear 7 and the fourth gear 9 on this side are still meshed with each other. In this way, after the rotating rod 8 is rotated as a whole (a limit switch 13 can also be set between the inner rod 82 and the outer sleeve 81. When the third gear 7 and the fourth gear 9 on one side are separated from each other and the third gear 7 and the fourth gear 9 on the other side are meshed with each other, the inner rod 82 and the outer sleeve 81 are limited by the limit switch 13. In this way, the subsequent operator only needs to rotate the rotating rod 8 as a whole, and does not need to manually position the inner rod 82, which is more convenient to operate), the initial position of one of the mounting blocks 32 can be adjusted separately to meet the needs of more working conditions. After the adjustment is completed, the inner rod 82 can be loosened, and the inner rod 82 is reset to the initial state under the action of the elastic reset member 18, and the fourth gear 9 is also reset under the action of the second spring 20, so that the fourth gear 9 is re-engaged with the third gear 7.

[0044] Reference Figure 1 The bracket 31 includes a frame body 311 and a lifting platform 312 which is slidably connected to the frame body 311 up and down. The frame body 311 is fixedly set on the chassis 1. A cylinder 313 is provided on the chassis 1 to drive the lifting platform 312 to move up and down. The mounting block 32 is slidably connected to the lifting platform 312.

[0045] Reference Figure 2 and Fig. 9 The rotating disk 54 includes a disk body 541 and a slider 542. The disk body 541 is provided with a sliding groove 543 extending in the radial direction thereof. The slider 542 is slidably connected in the sliding groove 543. The slider 542 is positioned by a bolt, and the connecting rod 55 is rotatably connected to the slider 542. The sliding slider 542 can adjust the distance from the rotation point between the connecting rod 55 and the rotating disk 54 to the axis of the rotating disk 54, thereby adjusting the amplitude of the reciprocating movement of the first rack 53, thereby adjusting the amplitude of the reciprocating movement of the mounting block 32.

[0046] The implementation principle of the trimming mechanism for a loom in the embodiment of the present application is as follows: first, the lifting platform 312 is lifted upward by the cylinder 313, and then the cloth woven from the loom passes through the guide roller assembly 2 on the feeding side, and then passes through the guide roller assembly 2 on the discharging side, and then only the trimming machine 34 is turned on, the lifting platform 312 moves downward, the trimming machine 34 cuts the cloth, the cloth is conveyed forward, and at the same time, the driving motor 56 is turned on, and the trimming assembly 3 cuts the edge of the cloth into a curved shape. After the cut cloth is output from the guide roller assembly 2 on the discharging side, the cloth is then cut horizontally (to separate the remaining cloth on the left and right sides from the cloth), and the remaining cloth after trimming on the left and right sides is passed into the discharge port 21, so that the remaining cloth is stored in the chassis 1, and the trimmed cloth is continuously wound onto the winding roller.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A trimming mechanism for a loom, comprising a chassis (1), a trimming assembly (3) being provided on the chassis (1), guide roller assemblies (2) being provided on the chassis (1) on the left and right sides of the trimming assembly (3), characterized in that: The trimming assembly (3) comprises a bracket (31) and mounting blocks (32) mounted on the left and right sides of the bracket (31), the mounting blocks (32) are rotatably provided with a rotating block (33), the rotating blocks (33) are provided with a trimming machine (34), and the mounting blocks (32) are provided with a driving rotating block ( The first drive mechanism (4) of the present invention is a first drive mechanism (4) for reciprocating left and right swinging, the mounting blocks (32) are all slidably connected to the bracket (31) in a transverse direction, the bracket (31) is provided with a second drive mechanism (5) for driving the mounting blocks (32) to reciprocate left and right, the second drive mechanism (5) comprises a double-threaded screw (51), the threads on the left and right sides of the double-threaded screw (51) are in opposite directions, the two mounting blocks (32) are respectively threadedly connected to one of the thread sections of the double-threaded screw (51), the double-threaded screw (51) is provided with a first gear (52), the bracket (31) is slidably connected to the first rack (53) in a forward and backward direction, the first rack (53) and the first gear (52) are meshed with each other, and the bracket (31) is rotatably provided with a rotating disk (54), a connecting rod (55) is provided between the rotating disk (54) and the first rack (53) and drives the first rack (53) to reciprocate forward and backward as the rotating disk (54) rotates, the connecting rod (55) is rotatably connected to the rotating disk (54) and the first rack (53), the rotating point between the connecting rod (55) and the rotating disk (54) and the axis of the rotating disk (54) are mutually offset, the bracket (31) is provided with a driving motor (56) for driving the rotating disk (54) to rotate, the first driving mechanism (4) comprises a second rack (41) and a second gear (42), the second rack (41) is fixedly arranged on the bracket (31), the rotating block ( The second gear (42) is fixedly sleeved on the rotating shaft (6), and the second rack (41) is slidably inserted into the mounting block (32). A reduction gear set (43) is provided in the mounting block (32). The second rack (41) and the second gear (42) are driven by the reduction gear set (43). The mounting block (32) includes a block body (321) and a sleeve body (322) rotatably arranged in the block body (321). The sleeve body (322) is threadedly connected to the double-thread screw (51). The sleeve body (322) is threadedly connected to the double-thread screw (51). ), a third gear (7) is fixedly sleeved on the frame, a rotating rod (8) with a polygonal cross section is rotatably provided on the bracket (31), a fourth gear (9) meshing with the third gear (7) is rotatably provided in the block (321), the fourth gear (9) is slidably sleeved on the rotating rod (8), the fourth gear (9) is provided with a polygonal hole (10) matching the rotating rod (8), the end of the double-threaded screw (51) extends to the outside of the frame to form a first control end (11), and the end of the rotating rod (8) extends to the outside of the bracket (31) to form a second control end (12),A limit switch (13) is provided between the second control end (12) and the bracket (31).

2. The edge trimming mechanism for a loom according to claim 1, characterized in that: The rotating rod (8) comprises an outer sleeve (81) and an inner rod (82), wherein the inner rod (82) is rotatably and slidably inserted into the outer sleeve (81) and both ends of the inner rod (82) extend outside the outer sleeve (81), wherein the outer sleeve (81) is provided with a first elongated through hole (83) communicating with the interior thereof along its length direction, wherein the inner rod (82) is provided with a second elongated through hole (84) along its length direction, wherein the second elongated through hole (84) is provided with a plurality of slots (85) on its inner wall along its length direction, wherein a convex block (86) is provided on the inner wall of the polygonal hole (10), wherein the convex block (86) passes through the first elongated through hole (83) and extends into the second elongated through hole (84), wherein the width of the convex block (86) is greater than the width of the slots (85), and The protrusion (86) is provided with a slide groove (14), a one-way block (15) is provided in the slide groove (14) for sliding up and down, a first spring (16) is provided in the slide groove (14), one end of the first spring (16) is connected to the bottom of the one-way block (15), and the other end is connected to the bottom wall of the slide groove (14), and inclined surfaces (17) are provided on the opposite side walls of the two one-way blocks (15), an elastic reset member (18) is provided between the outer sleeve (81) and the inner rod (82), and a dislocation groove (19) is provided in the block body (321) for the fourth gear (9) to be separated from the third gear (7) after sliding, and a second spring (20) is provided in the dislocation groove (19).

3. The edge trimming mechanism for a loom according to claim 2, characterized in that: The support (31) comprises a frame body (311) and a lifting platform (312) connected to the frame body (311) for sliding up and down, and the chassis (1) is provided with a cylinder (313) for driving the lifting platform (312) to move up and down.

4. The edge trimming mechanism for a loom according to claim 3, characterized in that: The rotating disk (54) comprises a disk body (541) and a slider (542); the disk body (541) is provided with a sliding groove (543) extending in its radial direction; the slider (542) is slidingly connected in the sliding groove (543); the slider (542) is positioned by a bolt; and the connecting rod (55) is rotationally connected to the slider (542).

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