rotary jog shuttle machine

Abstract

The utility model discloses a rotary jump cutting machine, including cutting mechanism and the feeding mechanism and receiving rotary mechanism of material of being established in its X direction both sides, the feeding mechanism is used for pushing or pulling the film along the X direction translation, and cutting mechanism is used for cutting the film, and receiving rotary mechanism is used for receiving the film after cutting and will rotate after sending back cutting mechanism and carries out secondary cutting. The utility model discloses through setting the feeding mechanism and receiving rotary mechanism of material of being established in the X direction both sides of cutting mechanism, and setting the clamping assembly on the feeding mechanism to push and pull the film, setting the sucking disc on the receiving rotary mechanism to suck and fix the film, can realize that the film is automatically forward in rotation jump cutting machine and rotates and changes and returns the loading position, and cuts through cutting mechanism in turn twice, and the rotary change cutting process does not need manpower and other mechanism assistance, and it is quick and efficient, and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of silicone sheet cutting equipment technology, and in particular to a rotary skip cutter. Background Technology

[0002] In production, film is mostly stored in rolls or sheets. Before use, it needs to be cut into small pieces along the horizontal and vertical directions using a cutting machine. There are two production modes for film cutting: semi-automatic and automatic. Semi-automatic production requires manual assistance to adjust and change the feeding direction, which is costly and inefficient. Fully automatic production requires no manual assistance, but the cutting process and mechanism are relatively complex. During cutting, heat accumulation can easily cause the film to stick to the blade or the film to fray at the edges, thus requiring additional cooling devices and even air purification devices, resulting in higher operating and maintenance costs. Utility Model Content

[0003] In view of this, it is necessary to improve film cutting equipment to achieve fully automated cutting operations at a lower cost.

[0004] This application provides a solution as follows: A rotary cutter for cutting film includes a frame with a cutting mechanism on it. A feeding mechanism and a receiving rotation mechanism are respectively located on either side of the frame in the X direction. The feeding mechanism pushes or pulls the film to move forward and backward in the X direction to approach or move away from the cutting mechanism. The cutting mechanism cuts the film passing beneath it or forms indentations on it. The receiving rotation mechanism moves the film, after one cut, forward in the X direction away from the cutting mechanism, and then rotates it to move the film in the reverse X direction to deliver it to the cutting mechanism for a second cut. The frame is provided with material platforms extending in the X direction on both sides of the cutting mechanism. The film can slide along the X direction on the material platform under the action of external force. The feeding mechanism and the receiving rotation mechanism are both located below the material platform. The feeding mechanism includes a first driving device and a clamping assembly connected to it in a transmission manner. The clamping assembly can clamp or release the end of the film away from the cutting mechanism, and push or pull the film on the material table along the X-direction or the X-direction under the drive of the first driving device. The cutting mechanism includes a second driving device and a horizontally arranged and Y-directed cutting tool connected to it in a transmission manner. The second driving device can drive the cutting tool to reciprocate along the Z-direction to cut the film. The material receiving and rotating mechanism includes a third driving device and a third plate connected to it in a transmission manner. The third driving device can drive the third plate to translate along the X direction. A fifth driving device is provided on the third plate. The fifth driving device is connected in a transmission manner to a horizontally placed turntable. The turntable is embedded in the material platform and is located on the front side of the clamping assembly in the X direction. The turntable can rotate under the drive of the fifth driving device to drive the film on it to move synchronously.

[0005] In some embodiments, the clamping assembly includes a first mounting base and a ninth drive device and a sixth drive device mounted thereon. The first mounting base is tractively connected to the first drive device. The ninth drive device is tractively connected to a fifth plate and is tractably translatable along the Y direction to support the film. The sixth drive device is tractively connected to the sixth plate and is tractably translatable along the Z direction to move closer to or further away from the fifth plate to clamp or release the film.

[0006] In some embodiments, the first mounting base is a U-shaped or Y-shaped structure, with the ninth driving device and the sixth driving device respectively provided on its two opposite side walls.

[0007] In some embodiments, the cutting mechanism includes a Z-direction extending bracket and a blade holder slidably mounted thereon. The bracket is provided with a vertically arranged second slide rail and a horizontally arranged blade pad between the two material tables. The blade holder is mounted on the second slide rail, and the blade is positioned directly above the blade pad in the Z direction on the blade holder. The blade holder is connected to the second driving device via a second transmission member and can slide along the second slide rail under de-driving conditions.

[0008] In some embodiments, the second transmission component includes a gear shaft extending in the Y direction, the gear shaft being connected to the second drive device via a timing belt, a cam being provided on the gear shaft, and a pull rod being slidably sleeved around the cam, the pull rod being hinged to the tool holder and being able to pull the tool holder to slide back and forth on the second slide rail under the drive of the rotating cam.

[0009] In some embodiments, the two ends of the gear shaft are respectively mounted on the tool holder adjustment assembly. Each tool holder adjustment assembly includes an adjustment seat mounted on the frame. The adjustment seat is provided with an adjustment slide extending in the Z direction. The adjustment slide is provided with a bearing seat adapted to the gear shaft. The bearing seat is connected to the seventh drive device and can slide on the adjustment slide under its drive.

[0010] In some embodiments, the Z-up end face of each bearing housing is an inclined surface and a wedge is slidably mounted thereon. The wedge is matched and embedded between the bearing housing and the adjusting seat and is connected to the eighth driving device. Each of the eighth driving devices can drive the wedge to slide on the inclined surface to push the bearing housing to slide on the adjusting slide.

[0011] In some embodiments, the tool holder is further provided with a tool adjustment assembly, including a tool plate movably mounted on the tool holder. The tool is disposed at the Z-down end of the tool plate, and its Z-up end is connected to two or more Z-direction extending screws. Each screw is mounted on the tool holder via a mounting plate, and a plurality of mounting plates are equally spaced along the Y-direction on the tool holder.

[0012] In some embodiments, a suction cup may be detachably fixed on the turntable. The suction cup has several air holes, and each air hole is connected to an air pump through an air channel to adsorb and fix the film that falls onto it.

[0013] In some embodiments, each of the two material platforms is provided with a plurality of roller groups arranged in the Y direction and extending in the X direction. Each roller group includes a plurality of rollers arranged longitudinally and at equal intervals in the X direction below the material platform. The upper end of each roller passes through the material platform and extends above it to support the film.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In the embodiments of this application, by setting a feeding mechanism and a receiving rotation mechanism on both sides of the cutting mechanism in the X direction, and setting a clamping component on the feeding mechanism to push and pull the film, and setting a suction cup on the receiving rotation mechanism to pick up and fix the film, the film can be automatically moved forward on the rotary jump cutter and rotated back to the feeding position, and then cut twice by the cutting mechanism. The rotation and reversal cutting process does not require manual labor or other mechanism assistance, which is fast, efficient, and low in cost, and can be applied to the cutting or creasing operation of film of different thicknesses within a certain range. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of this embodiment; Figure 2 This is a schematic diagram of the feeding mechanism in this embodiment; Figure 3 This is a schematic diagram of the cutting mechanism in this embodiment; Figure 4 This is a schematic diagram of the tool holder adjustment assembly in this embodiment; Figure 5 This is a schematic diagram of the material receiving and rotating mechanism in this embodiment.

[0016] Figure label: film; 200. Frame; 21. Material table; 22. Rollers; 23. Limit baffle; 300. Cutting mechanism; 31. Second drive unit; 32. Cutting tool; 33. Bracket; 331. Second slide rail; 332. Cutting pad; 34. Cutting post; 35. Second transmission component; 351. Gear shaft; 352. Synchronous belt; 353. Cam; 354. Tie rod; 36. Cutting post adjustment assembly; 361. Adjusting seat; 362. Adjusting slide rail; 363. Bearing seat; 364. Seventh drive unit; 365. Wedge block; 366. Eighth drive unit; 367. Inclined surface; 37. Cutting tool adjustment assembly; 371. Cutting plate; 372. Screw; 373. Mounting plate; Feeding mechanism; 41. First drive device; 42. Clamping assembly; 421. First mounting base; 422. Seventh drive device; 423. Sixth drive device; 424. Fifth plate; 425. Sixth plate; 500. Receiving and rotating mechanism; 51. Third drive device; 52. Third plate; 53. Fifth drive device; 54. Turntable; 55. Suction cup; 551. Air hole; 600. Display device. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] refer to Figure 1A rotary cutter for cutting film 100 includes a frame 200, on which a cutting mechanism 300 is mounted. A feeding mechanism 400 and a receiving and rotating mechanism 500 are respectively mounted on both sides of the frame 200 in the X direction. The feeding mechanism 400 pushes or pulls the film 100 to move forward and backward in the X direction towards or away from the cutting mechanism 300. The cutting mechanism 300 cuts the film 100 passing beneath it or forms indentations on it. The receiving and rotating mechanism 500 drives the film 100 after a first cut to move forward in the X direction away from the cutting mechanism 300, and then rotates it to drive the film 100 to move backward in the X direction to deliver it to the cutting mechanism 300 for a second cut. In this embodiment, a protective plate covers the periphery of the cutting mechanism 300.

[0021] refer to Figure 1 The frame 200 has material platforms 21 extending in the X direction on both sides of the cutting mechanism 300. The film 100 can slide along the X direction on the material platform 21 under the action of external force. The feeding mechanism 400 and the receiving and rotating mechanism 500 are both located below one of the material platforms 21. Both material platforms 21 are equipped with several sets of rollers arranged in the Y direction and extending in the X direction. Each set of rollers includes several rollers 22 that are equally spaced in the X direction and arranged longitudinally below the material platform 21. The upper end of each roller 22 passes through the material platform 21 and extends above it to support the film 100. During operation, the film 100 is manually or automatically fed from the Y-side of the material platform 21 onto the material platform 21. To ensure the accuracy of the feeding position, a limiting baffle 22 is also provided on the other Y-side of the material platform 21.

[0022] refer to Figure 2 The feeding mechanism 400 includes a first driving device 41 and a clamping assembly 42 connected thereto. The clamping assembly 42 can clamp or release the end of the film 100 away from the cutting mechanism 300, and under the drive of the first driving device 41, push or pull the film 100 to slide along the X-direction on the material table 21. The clamping assembly 42 includes a first mounting base 421 and a ninth driving device 422 and a sixth driving device 423 mounted thereon. The first mounting base 421 is connected to the first driving device 41. The ninth driving device 422 is connected to the fifth plate 424 and can drive it to translate along the Y-direction to support the film 100. The sixth driving device 423 is connected to the sixth plate 425 and can drive it to translate along the Z-direction to move closer to or away from the fifth plate 424 to clamp or release the film 100.

[0023] In order to hold the film 100 stably, the present invention sets the first mounting base 421 as a U-shaped or Y-shaped structure, and a ninth driving device 422 and a sixth driving device 423 are respectively provided on its two opposite side walls.

[0024] In this embodiment, the first driving device 41 is a slide extending in the X direction, which has both driving and guiding functions. The ninth driving device 422 and the sixth driving device 423 are both linear cylinders. The opposing ends of the fifth plate 424 and the sixth plate 425 are provided with protective textures.

[0025] refer to Figure 3 The cutting mechanism 300 includes a second drive device 31 and a blade 32 that is connected to it and is horizontally arranged and extends in the Y direction. The second drive device 31 can drive the blade 32 to move back and forth in the Z direction to cut the film 100.

[0026] To ensure that the cutter 32 can continuously and smoothly cut the film 100 back and forth, a Z-direction extending bracket 33 and a slidably mounted cutter holder 34 are also provided on the Z-direction frame 200. The bracket 33 is provided with a vertically arranged second slide rail 331 and a horizontally arranged cutter pad 332 between the two material tables 21. The cutter holder 34 is mounted on the second slide rail 331, and the cutter 32 is mounted on the cutter holder 34 directly above the cutter pad 332 in the Z direction. The cutter holder 34 is connected to the second drive device 31 through the second transmission member 35 and can slide along the second slide rail 331 under de-drive. In this embodiment, the second transmission component 35 includes a gear shaft 351 extending in the Y direction. The gear shaft 351 is connected to the second drive device 31 via a synchronous belt 352. A cam 353 is provided on the gear shaft 351. A pull rod 354 is slidably sleeved around the cam 353. The pull rod 354 is hinged to the tool holder 34 and can pull the tool holder 34 to slide back and forth on the second slide rail 331 under the drive of the rotating cam 353.

[0027] To further fine-tune the cutting or indentation depth of the blade 32, this embodiment also provides a blade adjustment assembly 37 on the blade holder 34, including a blade plate 371 movably mounted on the blade holder 34. The blade plate 371 has a blade 32 at its Z-down end and is connected to two or more Z-direction extending screws 372 at its Z-up end. Each screw 372 is mounted on the blade holder 34 via a mounting plate 373, and several mounting plates 373 are equally spaced along the Y-direction on the blade holder 34.

[0028] refer to Figure 4 In order to cut films 100 of different thicknesses within a certain range or leave indentations on them, in this embodiment, a tool holder adjustment assembly 36 is respectively mounted on both ends of the upper gear shaft 351. Each tool holder adjustment assembly 36 includes an adjustment seat 361 mounted on the frame 200. The adjustment seat 361 is provided with an adjustment slide 362 extending in the Z direction. The adjustment slide 362 is provided with a bearing seat 363 adapted to the gear shaft 351. The bearing seat 363 is connected to the seventh drive device 364 and can slide on the adjustment slide 362 under its drive.

[0029] To avoid damage to the cutting tool 32 due to incorrect operation or parameter settings, in this embodiment, the Z-up end face of each bearing seat 363 of the tool holder adjustment assembly 36 is set as an inclined surface 367, and a wedge block 365 is slidably mounted on it. The wedge block 365 is matched and embedded between the bearing seat 363 and the adjustment seat 361 and is connected to the eighth drive device 366 for transmission. Each eighth drive device 366 can drive a wedge block 365 to slide on an inclined surface 367 to push a bearing seat 363 to slide on the adjustment slide 362.

[0030] In this embodiment, the adjustment seat 361 is a square frame structure, the bearing seat 363 is slidably mounted on its inner wall, the second drive device 31 is a servo motor, a cam 353 is provided on both sides of the gear on the gear shaft 351, the seventh drive device 364 and the eighth drive device 366 are both linear cylinders, and each tool holder adjustment assembly 36 is covered with a protective cover.

[0031] refer to Figure 5 The receiving and rotating mechanism 500 includes a third driving device 51 and a third plate 52 that is connected to it in a transmission manner. The third driving device 51 can drive the third plate 52 to translate in the X direction. A fifth driving device 53 is provided on the third plate 52. The fifth driving device 53 is connected to a horizontally placed turntable 54 in a transmission manner. The turntable 54 is embedded in the material table 21 and is located on the front side of the clamping assembly 42 in the X direction. The turntable 54 can rotate under the drive of the fifth driving device 53 to drive the film 100 on it to move synchronously.

[0032] In order to ensure that the turntable 54 can drive the film 100 on it to move synchronously, in this embodiment, a suction cup 55 can be detachably fixed at the upper end of the turntable 54. The suction cup 55 is provided with several air holes 551, and each air hole 551 is connected to an air pump through an air channel to adsorb and fix the film 100 falling on it.

[0033] In this embodiment, the third drive device 51 is a linear cylinder, and the fifth drive device 52 is a servo motor.

[0034] refer to Figure 1 In this embodiment, an industrial control center and a display device 600 are electrically connected on the frame 200. The industrial control center is electrically connected to the sensors on each drive device and each mechanism. The display device 600 is equipped with several adjustment buttons or knobs, which makes it convenient for operators to set the operating parameters of each mechanism and to intuitively understand the operating status of each mechanism.

[0035] The working process of the rotary skip-cutting machine in this embodiment is as follows: 1. Loading and Feeding: The first drive device 41 first drives the clamping assembly 42 to move to the X-direction end of the feeding mechanism 400 away from the cutting mechanism 300. The sixth drive device 424 drives the sixth plate 425 to move upward to avoid the film 100. Then, the film 100 is fed from the Y-direction side of the material table 21 on the feeding mechanism 400 to the material table 23 and placed in position. The ninth drive device 422 drives the fifth plate 424 to move directly below the sixth plate 425. The sixth drive device 423 drives the sixth plate 425 to move downward to cooperate with the fifth plate 424 to clamp the film. After completion, the first drive device 41 drives the clamping assembly 42 to push the film 100 to slide on the roller 22 on the material table 23, and feeds the film 100 to the cutting mechanism 300. When the clamping assembly 42 moves to the set position, the first drive device 41 stops driving, and the sixth drive device 424 drives the sixth plate 425 to move upward to release the film 100.

[0036] 2. First cut: When the film 100 reaches the blade pad 332, the second drive device 31 drives the gear shaft 351 to drive the cam 353 on it to rotate synchronously. The cam 353 pushes the pull rod 354 to swing up and down, pulling the blade holder 34 to move back and forth along the Z direction on the second slide rail 331, driving the blade 32 to move back and forth in the Z direction synchronously to cut and move through the film 100 below it or leave an indentation on it.

[0037] 3. Receiving and Rotating: First, move the turntable 54 to the end near the cutting mechanism 300. Since the clamping assembly 42 has not yet released the film 100, the film 100 after the first cut or creasing is continuously pushed onto the suction cup 55. When the clamping assembly 42 releases the film 100, the air pump starts simultaneously, adsorbing the film onto the suction cup 55. The third drive device 51 drives the third plate 52 to move the turntable 54 and the suction cup 55 away from the cutting mechanism 300 along the X direction. After reaching the desired position, the fifth drive device 53 drives the turntable 54 to rotate, and the suction cup 55 and its film 100 rotate synchronously. After reaching the desired position, the third drive device 51 drives the suction cup 55 to move in the opposite direction along the X direction, sending the film 100 back to the cutting mechanism 300. When the end of the film 100 reaches the clamping assembly 42 again, the fifth plate 424 and the sixth plate 425 cooperate to clamp the film 100, and the air pump stops working.

[0038] 4. Second cutting and unloading: The cutting mechanism starts again, and the second cutting passes through the film 100 below it. The first driving device 41 drives the clamping component 42 that holds the film 100 after the second cutting to return to the initial position for unloading.

[0039] The tool adjustment process in this embodiment is as follows: 1. Tool Post Position Adjustment: Two seventh drive devices 364 synchronously drive two bearing seats 363 to slide along the Z-direction on two adjusting slides 362, adjusting the gear shaft 351 to the appropriate position. Two eighth drive devices 366 drive two wedges 365 to slide and press against the two bearing seats 363 on two inclined surfaces 367. The two work together to firmly fix each bearing seat 363 against the adjusting seat 363, completing the height adjustment of the gear shaft 351. Then, the second transmission component 35 completes the position adjustment of the tool post 34 on the bracket 33. To ensure that the gear shaft 351 and the second drive device 31 always maintain a proper transmission connection, a tensioning wheel for adjusting the tension of the synchronous belt 352 can be provided on the frame 200.

[0040] 2. Fine adjustment of tool position: Rotating screw 372 pushes the tool plate 371 to move horizontally on the tool holder 34, causing the tool 32 on it to move synchronously.

[0041] In this embodiment, a feeding mechanism 400 and a receiving rotation mechanism 500 are respectively provided on both sides of the cutting mechanism 300 in the X direction. A clamping component 42 is provided on the feeding mechanism 400 to push and pull the film 100, and a suction cup 55 is provided on the receiving rotation mechanism 500 to pick up and fix the film 100. The film 100 can automatically move forward on the rotary jump cutter and rotate back to the feeding position after reversing direction. It passes through the cutting mechanism twice for cutting. The rotation and reversing cutting process does not require manual labor or other mechanism assistance, which is fast, efficient and low cost. By setting the blade holder adjustment component 36 and the blade adjustment component 37, the distance between the blade 32 and the blade pad 332 can be automatically adjusted or finely adjusted to adapt to the cutting or creasing operation of film with different thicknesses within a certain range.

[0042] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A rotary skip-cutting machine for cutting film (100), comprising a frame (200), characterized in that, The frame (200) is equipped with a cutting mechanism (300), and a feeding mechanism (400) and a receiving and rotating mechanism (500) are respectively provided on both sides in the X direction. The feeding mechanism (400) is used to push or pull the film (100) to move forward and backward in the X direction to approach or move away from the cutting mechanism (300). The cutting mechanism (300) is used to cut the film (100) passing below it or to form indentations on it. The receiving and rotating mechanism (500) is used to drive the film (100) after the first cut to move forward in the X direction to move away from the cutting mechanism (300), and after rotating, drive the film (100) to move backward in the X direction to send it to the cutting mechanism (300) for a second cut; wherein: The frame (200) is provided with material platforms (21) extending in the X direction on both sides of the cutting mechanism (300). The film (100) can slide along the X direction on the material platform (21) under the action of external force. The feeding mechanism (400) and the receiving rotation mechanism (500) are both located below the material platform (21). The feeding mechanism (400) includes a first driving device (41) and a clamping assembly (42) connected to it in a transmission manner. The clamping assembly (42) can clamp or release the end of the film (100) away from the cutting mechanism (300), and push or pull the film (100) on the material table (21) in the positive or negative X direction under the drive of the first driving device (41). The cutting mechanism (300) includes a second drive device (31) and a blade (32) that is connected to it and is horizontally arranged and extends in the Y direction. The second drive device (31) can drive the blade (32) to move back and forth in the Z direction to cut the film (100). The material receiving and rotating mechanism (500) includes a third driving device (51) and a third plate (52) connected to it in a transmission manner. The third driving device (51) can drive the third plate (52) to translate in the X direction. A fifth driving device (53) is provided on the third plate (52). The fifth driving device (53) is connected in a transmission manner to a horizontally placed turntable (54). The turntable (54) is embedded in the material table (21) and is located on the front side of the clamping assembly (42) in the X direction. The turntable (54) can rotate under the drive of the fifth driving device (53) to drive the film (100) on it to move synchronously.

2. The rotary skip-cutting machine according to claim 1, characterized in that, The clamping assembly (42) includes a first mounting base (421) and a ninth drive device (422) and a sixth drive device (423) mounted thereon. The first mounting base (421) is convexly connected to the first drive device (41). The ninth drive device (422) is convexly connected to the fifth plate (424) and can drive it to translate along the Y direction to support the film (100). The sixth drive device (423) is convexly connected to the sixth plate (425) and can drive it to translate along the Z direction to move closer to or away from the fifth plate (424) to clamp or release the film (100).

3. The rotary skip-cutting machine according to claim 2, characterized in that, The first mounting base (421) has a U-shaped or Y-shaped structure, and the ninth driving device (422) and the sixth driving device (423) are respectively provided on its two opposite side walls.

4. The rotary skip-cutting machine according to claim 1, characterized in that, The cutting mechanism (300) includes a bracket (33) extending in the Z direction and a knife holder (34) slidably mounted thereon. The bracket (33) is provided with a vertically arranged second slide rail (331) and a horizontally arranged knife pad (332) between the two material tables (21). The knife holder (34) is mounted on the second slide rail (331). The knife (32) is provided on the knife holder (34) directly above the knife pad (332) in the Z direction. The knife holder (34) is connected to the second driving device (31) through a second transmission member (35) and can slide along the second slide rail (331) under de-driving conditions.

5. The rotary skip-cutting machine according to claim 4, characterized in that, The second transmission component (35) includes a gear shaft (351) extending in the Y direction. The gear shaft (351) is connected to the second drive device (31) via a synchronous belt (352). A cam (353) is provided on the gear shaft (351). A pull rod (354) is slidably sleeved around the cam (353). The pull rod (354) is hinged to the tool holder (34) and can pull the tool holder (34) to slide back and forth on the second slide rail (331) under the drive of the rotating cam (353).

6. The rotary skip-cutting machine according to claim 5, characterized in that, The two ends of the gear shaft (351) are respectively mounted on the tool holder adjustment assembly (36). Each tool holder adjustment assembly (36) includes an adjustment seat (361) mounted on the frame (200). The adjustment seat (361) is provided with an adjustment slide (362) extending in the Z direction. The adjustment slide (362) is provided with a bearing seat (363) adapted to the gear shaft (351). The bearing seat (363) is connected to the seventh drive device (364) and can slide on the adjustment slide (362) under its drive.

7. The rotary skip-cutting machine according to claim 6, characterized in that, Each bearing housing (363) has an inclined surface on its Z-axis, and a wedge (365) is slidably mounted thereon. The wedge (365) is fitted between the bearing housing (363) and the adjusting seat (361) and is connected to the eighth drive device (366) for transmission. Each of the eighth drive devices (366) can drive the wedge (365) to slide on the inclined surface to push the bearing housing (363) to slide on the adjusting slide (362).

8. The rotary skip-cutting machine according to claim 4, characterized in that, The tool holder (34) is also provided with a tool adjustment assembly (37), including a tool plate (371) movably mounted on the tool holder (34). The tool (32) is provided at the Z-down end of the tool plate (371), and its Z-up end is connected to two or more Z-direction extending screws (372). Each screw (372) is mounted on the tool holder (34) through a mounting plate (373). Several mounting plates (373) are equally spaced along the Y direction on the tool holder (34).

9. The rotary skip-cutting machine according to claim 1, characterized in that, A suction cup (55) can also be detachably fixed on the turntable (54). The suction cup (55) has several air holes (551). Each air hole (551) is connected to an air pump through an air channel to adsorb and fix the film (100) that falls on it.

10. The rotary skip-cutting machine according to any one of claims 1-9, characterized in that, Both material platforms (21) are equipped with several sets of rollers arranged in the Y direction and extending in the X direction. Each set of rollers includes several rollers (22) that are equally spaced in the X direction and arranged longitudinally below the material platform (21). The upper end of each roller (22) passes through the material platform (21) and extends above it to support the film (100).

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