CN115042252B

CN115042252B - Automatic cutting equipment of synthetic leather

Info

Publication number: CN115042252B
Application number: CN202210522904.5A
Authority: CN
Inventors: 张新文
Original assignee: Fujian Ruixin New Material Technology Co ltd
Current assignee: Fujian Ruixin New Material Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-08-22
Anticipated expiration: 2042-05-13
Also published as: CN115042252A

Abstract

The utility model discloses automatic cutting equipment for synthetic leather, which relates to the technical field of cutting devices and comprises a mounting frame, wherein a cutting mechanism is arranged on the mounting frame and is used for diversified cutting operations of the synthetic leather; the mounting frame is provided with a placing mechanism for stably placing the synthetic leather during cutting operation; the mounting frame is provided with a conveying mechanism for continuous cutting and conveying operation of the synthetic leather; the support frame is provided with a local cutting mechanism for local cutting operation of the synthetic leather; an adjusting mechanism is arranged on the supporting block and used for adjusting the distance between the two cutters; the supporting frame is provided with a control mechanism for cutting off transmission. According to the utility model, the cutting mechanism and the adjusting mechanism are arranged, so that the cutting operation of cross cutting and circular cutting can be realized, and the size and the cutting position required during cross cutting and circular cutting can be conveniently adjusted through the arranged adjusting mechanism, so that the device has diversified cutting functions, the cutting efficiency is improved, and the cutting quality is improved.

Description

Automatic cutting equipment of synthetic leather

Technical Field

The utility model relates to the technical field of cutting devices, in particular to automatic synthetic leather cutting equipment.

Background

Synthetic leather is a plastic product that mimics the composition and structure of natural leather and can be used as a substitute for natural leather. The porous polyurethane layer is usually produced by using an impregnated nonwoven fabric as a mesh layer and a microporous polyurethane layer as a grain layer. The front and back sides of the leather are very similar to leather, and the leather has certain air permeability and is more similar to natural leather than common artificial leather. Is widely used for manufacturing shoes, boots, bags, balls and the like. In the synthetic leather production process, a leather cutting device is required.

The utility model discloses a synthetic leather cutting device that chinese patent publication No. CN214818874U discloses, including the bottom plate, the upper surface of bottom plate is equipped with the workstation, the top of workstation is equipped with the cutter, the frame is installed to the top of cutter, the workstation is connected with the bottom plate through installation mechanism. The synthetic leather cutting device is simple and convenient to operate, and is beneficial to efficient cutting operation of synthetic leather.

The above technical solution also has the following problems.

In actual production application, synthetic leather material not only needs the transection, also needs multiple modes such as circular cutting, and the device only can carry out simple transection operation, and cutting function is single, and inconvenient regulation cutting size, cutting position, leads to cutting operation inefficiency, cutting effect poor.

Disclosure of Invention

The utility model aims at the problems, and provides automatic synthetic leather cutting equipment which solves the problems that the existing synthetic leather cutting device is single in cutting function, inconvenient to adjust cutting size and cutting position, low in cutting efficiency and poor in cutting effect.

The technical scheme adopted for solving the technical problems is as follows: the automatic synthetic leather cutting equipment comprises a mounting frame, wherein a cutting mechanism is arranged on the mounting frame and used for diversified cutting operations of synthetic leather; the mounting frame is provided with a placing mechanism for stably placing the synthetic leather during cutting operation; the mounting frame is provided with a conveying mechanism for continuous cutting and conveying operation of the synthetic leather; the cutting mechanism comprises a supporting block and a supporting frame, wherein the supporting block is slidably arranged on the mounting frame through a transverse cutting driving assembly, a first motor is arranged on the supporting block, the supporting frame is rotatably arranged on the lower side of the supporting block, an output shaft of the first motor is connected with the supporting frame, connecting plates are slidably arranged on two sides of the supporting frame, a bracket is arranged on the lower side of each connecting plate, and a cutter is arranged on each bracket; the support frame is provided with a local cutting mechanism for local cutting operation of the synthetic leather; the support block is provided with an adjusting mechanism for adjusting the distance between the two cutters, the adjusting mechanism comprises a first screw rod and a toothed ring, the first screw rod is rotatably mounted on the support frame, two sides of the first screw rod respectively penetrate through two connecting plates, the connecting plates are in threaded connection with the first screw rod, the toothed ring is connected with the support block through a connecting frame, one side of the support frame is rotatably mounted with a first gear for driving the first screw rod to rotate, and the first gear is meshed with the toothed ring; one side of the support frame, which is close to the first gear, is provided with a control mechanism for cutting off transmission.

Further, local cutting mechanism includes guide arm and second motor, the support frame both sides all are provided with the guide arm, slidable mounting has the slider on the guide arm, the slider both sides are all connected with the connecting plate of both sides through the trace, the trace both ends respectively with the slider, the connecting plate articulates, rotate on the slider and install the take-up pulley, install the second motor on one of them slider, second motor output shaft and adjacent take-up pulley coaxial coupling, rotate on the connecting plate and install the pivot, two pivots, two take-up pulleys are connected through first belt pulley group, the pivot passes through second belt pulley group and leg joint, the support rotates with the connecting plate to be connected, rotate on the support and install the second lead screw, the second lead screw runs through cutter and both threaded connection, cutter and leg joint, install the third motor on the support, third motor output shaft and second lead screw coaxial coupling.

Further, the transverse cutting driving assembly comprises a fourth motor and a third belt pulley group, the fourth motor and the third belt pulley group are respectively installed on the installation frame, and an output shaft of the fourth motor is connected with the supporting block through the third belt pulley group.

Further, the control mechanism comprises a first cylinder and a spline shaft, wherein the first cylinder is arranged on one side, close to the first gear, of the support frame, the spline shaft penetrates through the first gear and is in sliding connection with the first gear, an inner spline is arranged on one end, close to the first gear, of the first screw rod, one end of the spline shaft is detachably connected with the first screw rod through the inner spline, the other end of the spline shaft is connected with the output end of the first cylinder through a driving rod, locking pieces are arranged on two sides of the first screw rod in a sliding mode, and opening and closing pieces matched with the locking pieces are connected on two sides of the driving rod.

Further, placing mechanism includes first spring bar and bellows, and bellows passes through first spring bar and is connected with the mounting bracket, and the air exhauster is installed to bellows one side, and the bellows upside is provided with the layer board, has seted up a plurality of absorption holes on the layer board, and the layer board is located the cutter downside.

Further, transport mechanism is including releasing the reel and collecting the reel, mounting bracket one side rotates and installs the release reel, mounting bracket opposite side rotates and installs the collection reel, there is first clamp plate through reset spring slidable mounting on the mounting bracket, first clamp plate is close to the setting of release reel, be connected with on the mounting bracket with first clamp plate complex second clamp plate, the second clamp plate is located first clamp plate downside, first clamp plate both sides all are provided with the depression bar, the depression bar passes through a plurality of second spring bars and mounting bracket sliding connection, depression bar one end is connected with first clamp plate, the depression bar other end is connected with the sloping block, the equal slidable mounting in mounting bracket both sides has the removal push piece, it is used for the pinch roller of extrusion sloping block to rotate to install on the removal push piece, install the fifth motor on the removal push piece, fifth motor output shaft coaxial coupling has the second gear, the mounting bracket both sides all are connected with the rack that meshes respectively with two second gears, slidable mounting bracket and second clamp piece between two removal push pieces, first clamp piece both sides, second clamp piece both sides all are provided with the second cylinder, the second cylinder is connected with the removal push piece, be connected with matched with the push pedal on the removal push piece, be close to first clamp plate one side on the side and be provided with the sloping slide.

Further, the tensioning mechanism is arranged on the lower side of the bellows and comprises a pushing rod piece and a torsion spring, the pushing rod piece is rotatably arranged on two sides of the mounting frame through the torsion spring, the pushing rod piece is matched with the movable pushing piece, and a top wheel for pushing the bellows is rotatably arranged at one end of the pushing rod piece.

The beneficial effects of the utility model are as follows: (1) According to the utility model, the cutting mechanism and the adjusting mechanism are arranged, so that the cutting operation of cross cutting and circular cutting can be realized, and the size and the cutting position required during cross cutting and circular cutting can be conveniently adjusted through the arranged adjusting mechanism, so that the device has diversified cutting functions, the cutting efficiency is improved, and the cutting quality is improved.

(2) According to the utility model, through the arranged local cutting mechanism, the circular cutting operation in a local small range can be realized, so that the device has diversified cutting functions, and the practicability of the device is further improved.

(3) According to the utility model, the placement mechanism and the conveying mechanism are matched to work, so that continuous integrated operation of conveying, cutting and collecting the synthetic leather is realized, the cutting of the synthetic leather is realized efficiently and rapidly, and the cutting operation efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of a cutting mechanism according to the present utility model.

Fig. 3 is a schematic diagram of a cutting mechanism according to the present utility model.

Fig. 4 is a schematic diagram of a cutting mechanism according to the present utility model.

Fig. 5 is a schematic diagram of a cutting mechanism according to the present utility model.

Fig. 6 is an enlarged view at a in fig. 5.

Fig. 7 is an enlarged view at B in fig. 5.

Fig. 8 is a schematic representation of the internal spline location of the present utility model.

Fig. 9 is a schematic diagram of a cutting mechanism according to the present utility model.

Fig. 10 is a schematic diagram of a conveying mechanism according to the present utility model.

Fig. 11 is a schematic diagram of a conveying mechanism according to the present utility model.

Fig. 12 is a schematic view of the placement mechanism of the present utility model.

Fig. 13 is an enlarged view at C in fig. 12.

Fig. 14 is a schematic view of the tensioning mechanism of the present utility model.

Reference numerals: 1. a mounting frame; 2. a cutting mechanism; 21. a support block; 22. a support frame; 23. a transverse cutting drive assembly; 231. a fourth motor; 232. a third pulley set; 24. a first motor; 25. a connecting plate; 26. a bracket; 27. a cutter; 3. a placement mechanism; 31. a first spring lever; 32. a wind box; 33. an exhaust fan; 34. a supporting plate; 35. adsorption holes; 4. a conveying mechanism; 41. releasing the reel; 42. a collection reel; 43. a return spring; 44. a first platen; 45. a second pressing plate; 46. a compression bar; 47. a second spring rod; 48. a sloping block; 49. moving the pushing member; 410. a pinch roller; 411. a fifth motor; 412. a second gear; 413. a rack; 414. a first clamping piece; 415. a second clamping piece; 416. a second cylinder; 417. a push plate; 418. an inclined slide plate; 5. a partial cutting mechanism; 51. a guide rod; 52. a second motor; 53. a slide block; 54. a linkage rod; 55. a tensioning wheel; 56. a rotating shaft; 57. a first pulley set; 58. a second pulley set; 59. a second screw rod; 510. a third motor; 6. an adjusting mechanism; 61. a first screw rod; 62. a toothed ring; 63. a connecting frame; 64. a first gear; 7. a control mechanism; 71. a first cylinder; 72. a spline shaft; 73. an internal spline; 74. a drive rod; 75. a locking member; 76. an opening and closing member; 8. a tensioning mechanism; 81. pushing the rod piece; 82. a torsion spring; 83. and a top wheel.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, the automatic synthetic leather cutting device provided by the embodiment comprises a mounting frame 1, wherein a cutting mechanism 2 is arranged on the mounting frame 1 and is used for diversified cutting operations of synthetic leather, and the automatic synthetic leather cutting device is multifunctional and convenient to cut; the mounting frame 1 is provided with a placement mechanism 3 for stably placing the synthetic leather during cutting operation; the mounting frame 1 is provided with a conveying mechanism 4 for continuous cutting and conveying operation of synthetic leather, and continuous integrated operation of synthetic leather conveying, cutting and collecting is realized.

As shown in fig. 1-9, the cutting mechanism 2 comprises a supporting block 21 and a supporting frame 22, the supporting block 21 is slidably mounted on the mounting frame 1 through a transverse cutting driving assembly 23, a first motor 24 is mounted on the supporting block 21, the supporting frame 22 is rotatably mounted on the lower side of the supporting block 21, an output shaft of the first motor 24 is connected with the supporting frame 22, connecting plates 25 are slidably mounted on two sides of the supporting frame 22, a support 26 is mounted on the lower side of each connecting plate 25, and a cutter 27 is mounted on the support 26.

As shown in fig. 1, 3, 4, 5 and 9, the supporting block 21 is provided with an adjusting mechanism 6 for adjusting the distance between the two cutters 27 and further adjusting different cutting sizes, the adjusting mechanism 6 comprises a first screw rod 61 and a toothed ring 62, the first screw rod 61 is rotatably mounted on the supporting frame 22, the first screw rod 61 is a bidirectional screw rod, two sides of the first screw rod 61 respectively penetrate through two connecting plates 25, the connecting plates 25 are in threaded connection with the first screw rod 61, the toothed ring 62 is connected with the supporting block 21 through a connecting frame 63, a first gear 64 for driving the first screw rod 61 to rotate is rotatably mounted on one side of the supporting frame 22, and the first gear 64 is meshed with the toothed ring 62.

As shown in fig. 1, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 9, a local cutting mechanism 5 is arranged on a support frame 22 and is used for local cutting operation of synthetic leather, the local cutting mechanism 5 comprises a guide rod 51 and a second motor 52, the two sides of the support frame 22 are respectively provided with the guide rod 51, a sliding block 53 is slidably mounted on the guide rod 51, the two sides of the sliding block 53 are respectively connected with connecting plates 25 on the two sides through a linkage rod 54, the two ends of the linkage rod 54 are respectively hinged with the sliding block 53 and the connecting plates 25, a tensioning wheel 55 is rotatably mounted on the sliding block 53, one sliding block 53 is provided with the second motor 52, an output shaft of the second motor 52 is coaxially connected with the adjacent tensioning wheel 55, a rotating shaft 56 is rotatably mounted on the connecting plate 25, the two rotating shafts 56 and the two tensioning wheels 55 are connected with each other through a first belt pulley set 57, a toothed belt connected with the tensioning wheel 55 is used for preventing slipping, the rotating shaft 56 is connected with a bracket 26 through a second belt set 58, the bracket 26 is rotatably connected with the connecting plate 25, a second screw 59 is rotatably mounted on the bracket 26, the second screw 59 penetrates through the cutter 27 and is in threaded connection with the cutter 27, the cutter 27 and is slidably connected with the bracket 26, the motor is coaxially connected with the third motor 26, and is coaxially connected with the third screw 510 by the third screw rod 510.

As shown in fig. 2, the transverse cutting driving assembly 23 includes a fourth motor 231 and a third belt pulley set 232, the fourth motor 231 and the third belt pulley set 232 are respectively mounted on the mounting frame 1, and an output shaft of the fourth motor 231 is connected with the supporting block 21 through the third belt pulley set 232.

As shown in fig. 5, 7 and 8, a control mechanism 7 for cutting off transmission is arranged on one side, close to the first gear 64, of the support frame 22, the control mechanism 7 comprises a first air cylinder 71 and a spline shaft 72, the first air cylinder 71 is arranged on one side, close to the first gear 64, of the support frame 22, the spline shaft 72 penetrates through the first gear 64 and is in sliding connection with the first gear 64, an internal spline 73 is arranged on one end, close to the first gear 64, of the first screw rod 61, one end of the spline shaft 72 is detachably connected with the first screw rod 61 through the internal spline 73, the other end of the spline shaft 72 is connected with the output end of the first air cylinder 71 through a driving rod 74, locking pieces 75 are slidably arranged on two sides of the first screw rod 61, opening and closing pieces 76 matched with the locking pieces 75 are connected on two sides of the driving rod 74, in this embodiment, a chute is arranged on the locking pieces 75 in the process of being driven by the first air cylinder 71, the two locking pieces 75 are pushed to be close to each other or are separated from each other through the chute, locking operation is further realized on the first screw rod 61, and rotation of the first screw rod 61 is prevented during cutting operation.

As shown in fig. 1, 10, 11 and 12, the placement mechanism 3 comprises a first spring rod 31 and an air box 32, the air box 32 is connected with the mounting frame 1 through the first spring rod 31, an exhaust fan 33 is installed on one side of the air box 32, a supporting plate 34 is arranged on the upper side of the air box 32, a plurality of adsorption holes 35 are formed in the supporting plate 34, and the supporting plate 34 is located on the lower side of the cutter 27.

As shown in fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, the transport mechanism 4 includes release reel 41 and collection reel 42, release reel 41 is installed in rotation of one side of mounting bracket 1, collection reel 42 is installed in rotation of the opposite side of mounting bracket 1, first clamp plate 44 is installed through reset spring 43 slidable mounting on mounting bracket 1, first clamp plate 44 is close to release reel 41 setting, be connected with on mounting bracket 1 with first clamp plate 44 complex second clamp plate 45, second clamp plate 45 is located first clamp plate 44 downside, first clamp plate 44 both sides all are provided with depression bar 46, depression bar 46 is through a plurality of second spring bars 47 and mounting bracket 1 sliding connection, depression bar 46 one end is connected with first clamp plate 44, the depression bar 46 other end is connected with sloping block 48, all slidable mounting bracket 1 both sides are installed and are removed push member 49, remove push member 49 and are installed in rotation on the push member 49 and are used for squeezing the pinch roller 410 of sloping block 48, install fifth motor 411 on the removal push member 49, fifth motor output shaft coaxial coupling has second gear 412, mounting bracket 1 both sides all are connected with second clamp plate 413 with two second gear 412 respectively meshing with second clamp plate, two first clamp plate 414 are provided with second clamp plate 415 between two removal push member 414 and two cylinder 416, two sides are connected with second clamp plate 416, two slide plate 416 are provided with two cylinder 416.

As shown in fig. 12 and 14, the lower side of the bellows 32 is provided with a tensioning mechanism 8, the tensioning mechanism 8 comprises a pushing rod 81 and a torsion spring 82, the pushing rod 81 is rotatably mounted on two sides of the mounting frame 1 through the torsion spring 82, the pushing rod 81 is matched with the movable pushing member 49, and a top wheel 83 for pushing the bellows 32 is rotatably mounted on one end of the pushing rod 81.

The working principle of the utility model is as follows.

Step one: the preparation work before cutting is carried out, the synthetic leather raw material is wound on the release reel 41, the end part of the synthetic leather material passes through the gap between the first pressing plate 44 and the second pressing plate 45, the first pressing plate 44 is far away from the second pressing plate 45 due to the action of the second spring rod 47 and the return spring 43, at this time, the synthetic leather can move between the first pressing plate 44 and the second pressing plate 45, the second cylinder 416 is operated to enable the first clamping piece 414 and the second clamping piece 415 to be close to each other, the end part of the synthetic leather is clamped, the fifth motor 411 is operated to drive the second gear 412 to rotate, the second gear 412 is driven to rotate to cooperate with the rack 413 to drive the movable pushing piece 49 to slide on the mounting frame 1, the movable pushing piece 49 drives the synthetic leather to move towards the collecting reel 42, at this time, the pressing wheel 410 slides on the pressing rod 46, after the pressing wheel 410 moves to the position of the inclined block 48, the pressing wheel 410 presses the inclined block 48 to enable the pressing rod 46 to move downwards, the pressing rod 46 moves downwards to enable the first pressing plate 44 to move close to the second pressing plate 45, clamping operation on synthetic leather is achieved, meanwhile, the moving pushing piece 49 acts on the pushing rod 81 to enable the pushing rod 81 to rotate, the top wheel 83 on the pushing rod 81 acts on the bellows 32 to enable the bellows 32 and the supporting plate 34 to move upwards, at the moment, the torsion spring 82 is in a compressed state, the first spring rod 31 is in a stretched state, the supporting plate 34 moving upwards stretches the synthetic leather, the exhaust fan 33 is operated, the synthetic leather is stably adsorbed on the supporting plate 34, and cutting operation is facilitated.

Step two: performing transverse cutting operation, operating the first air cylinder 71 to separate the spline shaft 72 from the internal spline 73 of the first screw rod 61, enabling the two locking pieces 75 to lock the first screw rod 61 to prevent the first screw rod 61 from rotating, operating the fourth motor 231, and enabling the fourth motor 231 to drive the third belt pulley group 232 to move, further enabling the supporting block 21 to slide on the mounting frame 1, and enabling the sliding of the supporting block 21 to drive the supporting frame 22, the connecting plate 25, the support 26 and the cutter 27 to perform transverse cutting operation; performing circular cutting operation, namely operating a first motor 24 to drive a support frame 22 to rotate, and driving a connecting plate 25, a support 26 and a cutter 27 to rotate by the rotation of the support frame 22 to realize circular cutting operation of the synthetic leather; the partial circular cutting operation is performed, the second motor 52 is operated to drive the tensioning wheel 55 connected with the second motor to rotate, the first belt pulley group 57 is further enabled to move, the first belt pulley group 57 is enabled to move, the rotating shaft 56 is enabled to rotate, the rotating shaft 56 drives the support 26 to rotate through the second belt pulley group 58, and the partial circular cutting operation is further achieved.

Step three: adjusting the cutting size and the cutting position, operating the first cylinder 71 to enable the driving rod 74 to move, driving the rod 74 to enable the spline shaft 72 to slide in the first gear 64, enabling the spline shaft 72 to be connected with the first screw rod 61 coaxially through the internal spline 73, at this time, driving the rod 74 to enable the opening and closing piece 76 to act on the locking piece 75 to enable the two locking pieces 75 to be separated, at this time, enabling the first screw rod 61 to rotate, operating the first motor 24 to enable the supporting frame 22 to rotate, enabling the supporting frame 22 to drive the first gear 64 to rotate around the output shaft of the first motor 24, enabling the rotating first gear 64 to work with the toothed ring 62 in a matched mode, enabling the first screw rod 61 to rotate, enabling the rotating first screw rod 61 to achieve mutual approaching or mutual separating of the two connecting plates 25, enabling the two cutting tools 27 to achieve mutual approaching or mutual separating of the cutting size and the cutting position, enabling the two sliding blocks 53 to slide on the guide rods 51 due to the effect of the two connecting plates 25, enabling the tensioning wheel 55 to move, enabling the first belt pulley set 57 to be in a tensioning state, operating the third motor 510 to drive the second screw rod 61 to rotate, and enabling the second screw rod set 57 to achieve local adjusting operation of the cutting size.

Step four: when the first clamping piece 414 and the second clamping piece 415 move towards the releasing reel 41, the push plate 417 pushes the cut synthetic leather on the supporting plate 34 to the inclined slide 418, then the synthetic leather is collected, and finally the synthetic leather residue is wound on the collecting reel 42.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.

Claims

1. An automatic synthetic leather cutting device which is characterized in that: the leather cutting device comprises a mounting frame (1), wherein a cutting mechanism (2) is arranged on the mounting frame (1) and is used for diversified cutting operations of synthetic leather; a placing mechanism (3) is arranged on the mounting frame (1) and is used for stably placing the synthetic leather during cutting operation; the mounting frame (1) is provided with a conveying mechanism (4) for continuous cutting and conveying operation of the synthetic leather; the cutting mechanism (2) comprises a supporting block (21) and a supporting frame (22), wherein the supporting block (21) is slidably installed on the installation frame (1) through a transverse cutting driving assembly (23), a first motor (24) is installed on the supporting block (21), the supporting frame (22) is rotatably installed on the lower side of the supporting block (21), an output shaft of the first motor (24) is connected with the supporting frame (22), connecting plates (25) are slidably installed on two sides of the supporting frame (22), a bracket (26) is installed on the lower side of each connecting plate (25), and a cutter (27) is installed on each bracket (26); the support frame (22) is provided with a local cutting mechanism (5) for local cutting operation of the synthetic leather; the support block (21) is provided with an adjusting mechanism (6) for adjusting the distance between two cutters (27), the adjusting mechanism (6) comprises a first screw rod (61) and a toothed ring (62), the first screw rod (61) is rotatably mounted on the support frame (22), two sides of the first screw rod (61) respectively penetrate through two connecting plates (25), the connecting plates (25) are in threaded connection with the first screw rod (61), the toothed ring (62) is connected with the support block (21) through a connecting frame (63), a first gear (64) for driving the first screw rod (61) to rotate is rotatably mounted on one side of the support frame (22), and the first gear (64) is meshed with the toothed ring (62); a control mechanism (7) for cutting off transmission is arranged on one side of the support frame (22) close to the first gear (64);

the placing mechanism (3) comprises a first spring rod (31) and an air box (32), the air box (32) is connected with the mounting frame (1) through the first spring rod (31), an exhaust fan (33) is arranged on one side of the air box (32), a supporting plate (34) is arranged on the upper side of the air box (32), a plurality of adsorption holes (35) are formed in the supporting plate (34), and the supporting plate (34) is located on the lower side of the cutter (27);

the conveying mechanism (4) comprises a release reel (41) and a collection reel (42), the release reel (41) is rotatably arranged on one side of the installation frame (1), the collection reel (42) is rotatably arranged on the other side of the installation frame (1), a first pressing plate (44) is slidably arranged on the installation frame (1) through a reset spring (43), the first pressing plate (44) is close to the release reel (41), a second pressing plate (45) matched with the first pressing plate (44) is connected to the installation frame (1), the second pressing plate (45) is positioned on the lower side of the first pressing plate (44), pressing rods (46) are arranged on two sides of the first pressing plate (44), one end of each pressing rod (46) is connected with the first pressing plate (44) through a plurality of second spring rods (47), an inclined block (411) is connected to the other end of each pressing rod (46), a movable pushing member (49) is slidably arranged on two sides of the installation frame (1), a pressing wheel (410) used for extruding the inclined block (48) is rotatably arranged on the movable pushing member (49), a fifth motor output shaft (412) is arranged on the movable pushing member (49), the fifth motor output shaft (412) is coaxially connected to the second gear (412) and is meshed with the two sides of the installation frame (1), a first clamping piece (414) and a second clamping piece (415) are slidably mounted between the two movable pushing pieces (49), second air cylinders (416) are respectively arranged on two sides of the first clamping piece (414) and two sides of the second clamping piece (415), the second air cylinders (416) are connected with the movable pushing pieces (49), a push plate (417) matched with the supporting plate (34) is connected between the two movable pushing pieces (49), and an inclined sliding plate (418) is arranged on one side, close to the first pressing plate (44), of the mounting frame (1).

2. An automatic synthetic leather cutting apparatus according to claim 1, wherein: the local cutting mechanism (5) comprises a guide rod (51) and a second motor (52), the two sides of the supporting frame (22) are respectively provided with the guide rod (51), the guide rod (51) is provided with a sliding block (53) in a sliding manner, the two sides of the sliding block (53) are respectively connected with connecting plates (25) on the two sides through a linkage rod (54), the two ends of the linkage rod (54) are respectively hinged with the sliding block (53) and the connecting plates (25), the sliding block (53) is provided with a tensioning wheel (55) in a rotating manner, one sliding block (53) is provided with the second motor (52), the output shaft of the second motor (52) is coaxially connected with the adjacent tensioning wheel (55), the connecting plates (25) are rotatably provided with a rotating shaft (56), the two rotating shafts (56) and the two tensioning wheels (55) are connected with a bracket (26) through a first belt pulley group (57), the rotating shaft (56) is connected with the bracket (26) in a rotating manner, the bracket (26) is rotatably provided with a second screw rod (59) in a rotating manner, the second screw rod (59) penetrates through a cutter (27) and is in threaded connection with the cutter (27), the cutter (27) and is connected with the bracket (26) in a sliding manner, the third bracket (510) is arranged, an output shaft of the third motor (510) is coaxially connected with the second screw rod (59).

3. An automatic synthetic leather cutting apparatus according to claim 1, wherein: the transverse cutting driving assembly (23) comprises a fourth motor (231) and a third belt pulley group (232), the fourth motor (231) and the third belt pulley group (232) are respectively arranged on the mounting frame (1), and an output shaft of the fourth motor (231) is connected with the supporting block (21) through the third belt pulley group (232).

4. An automatic synthetic leather cutting apparatus according to claim 1, wherein: the control mechanism (7) comprises a first air cylinder (71) and a spline shaft (72), wherein the first air cylinder (71) is installed on one side, close to a first gear (64), of a supporting frame (22), the spline shaft (72) penetrates through the first gear (64) and is in sliding connection with the first gear, an inner spline (73) is arranged on one end, close to the first gear (64), of the first screw rod (61), one end of the spline shaft (72) is detachably connected with the first screw rod (61) through the inner spline (73), the other end of the spline shaft (72) is connected with the output end of the first air cylinder (71) through a driving rod (74), locking pieces (75) are slidably installed on two sides of the first screw rod (61), and opening and closing pieces (76) matched with the locking pieces (75) are connected on two sides of the driving rod (74).

5. An automatic synthetic leather cutting apparatus according to claim 1, wherein: the tensioning mechanism (8) is arranged on the lower side of the air box (32), the tensioning mechanism (8) comprises a pushing rod piece (81) and a torsion spring (82), the pushing rod piece (81) is rotatably arranged on two sides of the mounting frame (1) through the torsion spring (82), the pushing rod piece (81) is matched with the movable pushing piece (49), and a top wheel (83) for pushing the air box (32) is rotatably arranged at one end of the pushing rod piece (81).