Slitting device for production of wrapping film

Abstract

The utility model discloses a slitting device for production of a wrapping film, which belongs to the field of wrapping film production and comprises a mounting frame, a fixing plate fixedly connected to the top of the mounting frame, a lifting mechanism mounted on the fixing plate, a rotating mechanism arranged on the mounting frame, the lifting mechanism comprising a first motor, and a rotating block fixedly connected to the output end of the first motor. The rotating mechanism comprises a second motor. The cutting device has the beneficial effects that the two sets of telescopic mechanisms and the two sets of adjusting mechanisms are arranged, the cutting mechanism and the supporting mechanism are arranged on the telescopic mechanisms, winding film rolls with different diameters are fixed, through the arrangement of the adjusting mechanisms, gaps of all the sets of cutters are subjected to stepless adjustment, and the cutting efficiency is improved while the cutters are subjected to stepless adjustment through swing rods. The gaps of the anti-skid pads are changed, the inner side of the winding film roll is supported, it is guaranteed that the cutting position and the supporting position of the cutter are staggered in the slitting process, and the slitting flatness is improved.

Description

Technical Field

[0001] This utility model relates to the field of stretch film production, and in particular to a slitting device for stretch film production. Background Technology

[0002] Stretch film is a type of plastic film with high toughness and elasticity. It boasts advantages such as tear resistance, high adhesion, thinness, cold resistance, heat resistance, pressure resistance, dustproofing, and waterproofing. Therefore, it is widely used in papermaking, logistics, chemical, plastic raw material, building materials, food, and glass industries. During the production process, to meet the needs of different customers, a slitting device is used to trim and cut the wide-width stretch film material.

[0003] A search revealed a Chinese patent publication number CN221274803U that discloses a wrapping film slitting device. This patent includes a slitting shaft and several sets of spliced ​​slitting blades mounted on the slitting shaft. The slitting shaft is provided with a top frame and a fixing frame. Several evenly spaced and linearly arranged locking screw holes are symmetrically opened on both sides of the outer wall of the slitting shaft. Each set of slitting blades includes two sets of semi-circular blades spliced ​​together. This invention features a number of evenly spaced, linearly arranged locking screw holes symmetrically formed on both sides of the outer wall of the slitting shaft, making the installation of the slitting blade more stable and allowing for easy adjustment of its position. The two sets of semi-circular blades are fitted with connecting ring seats that match the outer diameter of the slitting shaft, facilitating assembly and disassembly and making blade replacement and maintenance more convenient and quick. A lifting adjustment cylinder is installed at one end of the fixed frame, allowing for easy adjustment of the slitting blade height to accommodate different thicknesses of stretch film. However, existing stretch film slitting devices can only perform fixed-width slitting operations on wide stretch film, making it difficult to flexibly adjust the slitting gap and meet various customer requirements. Furthermore, when slitting stretch film of different diameters at different widths, it is difficult to ensure good support, affecting the flatness of the stretch film side during slitting. Utility Model Content

[0004] The purpose of this invention is to provide a slitting device for producing stretch film in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A slitting device for producing stretch film includes a mounting frame, a fixed plate fixedly connected to the top of the mounting frame, a lifting mechanism mounted on the fixed plate, and a rotating mechanism mounted on the mounting frame. The lifting mechanism includes a first motor, the output end of which is fixedly connected to a rotating block. The rotating mechanism includes a second motor, the output end of which is fixedly connected to a connecting shaft. Telescopic mechanisms are respectively mounted on one end of the rotating block and the connecting shaft, and the two sets of telescopic mechanisms are arranged parallel to each other vertically. A connecting sleeve is rotatably connected to the connecting shaft, and a vertical plate is fixedly connected to the connecting sleeve. Several slitting mechanisms are mounted on the telescopic mechanisms mounted on the rotating block, and several support mechanisms are mounted on the telescopic mechanisms mounted on the connecting shaft. The support mechanisms support the stretch film rolls. An adjustment mechanism is mounted on the vertical plate and connected to the telescopic mechanisms mounted on the rotating block. The adjustment mechanism changes the length of the telescopic mechanisms, thereby adjusting the gap between the various slitting mechanisms. A connecting mechanism is mounted on the adjustment mechanism, including a translation component and a translation sleeve connected to the telescopic mechanisms mounted on the connecting shaft. The connecting mechanism also includes a swing rod connecting the adjustment mechanism and the translation sleeve.

[0007] Preferably, the telescopic mechanism includes several sets of hinged links, with a first shaft rotatably disposed at the middle position of the link and a second shaft rotatably disposed at the end of the link. A connecting plate is rotatably connected to the first shaft at one end, and the connecting plate is fixedly connected to the rotating block and one end of the connecting shaft respectively. A movable frame is rotatably connected to the first shaft away from the connecting plate.

[0008] Preferably, the adjustment mechanism includes a fixed frame, which is fixedly connected to the top of the vertical plate. An adjustment screw is threadedly connected to the fixed frame, and an adjustment sleeve is rotatably connected to the adjustment screw. The adjustment sleeve is slidably connected to the fixed frame, and a slide rod is fixedly connected to the bottom of the adjustment sleeve. A slider is slidably connected to the slide rod, and the slider is rotatably connected to the upper movable frame.

[0009] Preferably, the connecting mechanism includes a mounting shaft rotatably connected to an adjusting sleeve, a swing rod fixedly connected to one end of the mounting shaft, a pin fixedly connected to the end of the swing rod away from the mounting shaft, a translation sleeve fixedly connected to a lower movable frame, and a pinhole provided on the translation sleeve to cooperate with the pin.

[0010] Preferably, the adjusting sleeve is fixedly connected to a connecting piece, the connecting piece is slidably connected to a limit rod, and the translation sleeve is threadedly connected to a locking bolt.

[0011] Preferably, a third support frame is fixedly connected to the second motor, the third support frame is fixedly connected to the mounting frame, and a guide frame is fixedly connected to the end of the connecting shaft away from the second motor, and the translation sleeve is slidably connected to the guide frame.

[0012] Preferably, the slitting mechanism includes a rotating shaft, which is rotatably connected to several No. 1 shafts on the upper side. A connecting frame is fixedly connected to the rotating shaft, and a cutter is fixedly connected to the connecting frame.

[0013] Preferably, the support mechanism includes several sets of support shafts, which are symmetrically arranged vertically. The support shafts are rotatably connected to several secondary shafts on the lower side. Mounting seats are fixedly connected to the support shafts, and connecting pads are fixedly connected to the mounting seats. Compensation components are provided on the connecting pads.

[0014] Preferably, the compensation component includes a connecting screw, which is rotatably connected to a connecting pad. A square rod is fixedly connected to one end of the connecting screw, and the square rod is slidably connected to an adjacent set of connecting screws. A wedge-shaped piece is threaded onto the connecting screw, and the wedge-shaped piece is slidably connected inside the connecting pad. A compensation block is slidably connected to the outside of the connecting pad.

[0015] Preferably, the lifting mechanism includes a hydraulic cylinder, a first support frame is fixedly connected to the hydraulic cylinder, the first support frame is fixedly connected to the fixed plate, a lifting frame is fixedly connected to the output end of the hydraulic cylinder, a guide groove is provided on the mounting frame, a guide rod is fixedly connected in the guide groove, the lifting frame is slidably connected to the guide rod, a second support frame is fixedly connected to the lifting frame, a first motor is fixedly connected to the second support frame, a lifting block is fixedly connected to the second support frame, and the vertical plate is slidably connected to the vertical plate.

[0016] The beneficial effects are as follows: Two sets of telescopic and adjusting mechanisms are set up, and a slitting and supporting mechanism is set on the telescopic mechanism. This enables the fixing of winding film rolls of different diameters. Through the setting of the adjusting mechanism, the gap of each set of cutters can be infinitely adjusted. By using the swing rod to infinitely adjust the cutters, the gap of each set of anti-slip pads is changed to support the inner side of the winding film roll, ensuring that the cutting position of the cutter and the support position are staggered during slitting, thus improving the flatness of the slitting.

[0017] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of a slitting device for producing stretch film according to the present invention;

[0020] Figure 2 This is a front view of a slitting device for producing stretch film according to the present invention;

[0021] Figure 3 This is a schematic diagram of a cutting device for producing stretch film according to the present invention, without the mounting frame.

[0022] Figure 4 This is a schematic diagram showing the connection between the lifting mechanism, telescopic mechanism, and adjusting mechanism of the slitting device for producing stretch film according to this utility model;

[0023] Figure 5 This is a schematic diagram showing the connection between the rotating mechanism, telescopic mechanism, and connecting mechanism of a slitting device for producing stretch film according to this utility model;

[0024] Figure 6 This is a schematic diagram of the telescopic mechanism of a slitting device for producing stretch film according to the present invention;

[0025] Figure 7 This is a schematic diagram of the cutting mechanism of a cutting device for producing stretch film according to the present invention;

[0026] Figure 8 This is a schematic diagram of the support mechanism of a slitting device for producing stretch film according to the present invention;

[0027] Figure 9 This is a cross-sectional view of the support mechanism of a slitting device for producing stretch film according to the present invention.

[0028] The reference numerals in the attached drawings are explained as follows: 101, mounting bracket; 102, guide groove; 103, guide rod; 104, fixing plate; 201, hydraulic cylinder; 202, first support frame; 203, lifting frame; 204, second support frame; 205, first motor; 206, lifting block; 207, rotating block; 208, vertical plate; 301, second motor; 302, third support frame; 303, connecting shaft; 304, connecting sleeve; 305, guide frame; 401, connecting plate; 402, connecting rod; 403, first shaft; 404, second shaft; 405, moving part. Frame; 501, Fixed frame; 502, Adjusting screw; 503, Rotating handle; 504, Adjusting sleeve; 505, Slide rod; 506, Slider; 601, Mounting shaft; 602, Swing rod; 603, Insert pin; 604, Translation sleeve; 605, Locking bolt; 606, Insertion hole; 607, Connecting piece; 608, Limiting rod; 701, Rotating shaft; 702, Connecting frame; 703, Cutter; 801, Support shaft; 802, Mounting base; 803, Connecting pad; 804, Connecting screw; 805, Square rod; 806, Wedge plate; 807, Compensating block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figure 1 — Figure 9 As shown, a slitting device for producing stretch film includes a mounting frame 101. A fixing plate 104 is bolted to the top of the mounting frame 101. A lifting mechanism is mounted on the fixing plate 104. A rotating mechanism is provided on the mounting frame 101. The lifting mechanism includes a primary motor 205, the output end of which is connected to a rotating block 207 via a coupling. The rotating mechanism includes a secondary motor 301, the output end of which is connected to a connecting shaft 303 via a coupling. Telescopic mechanisms are respectively provided at one end of the rotating block 207 and the connecting shaft 303. The two sets of telescopic mechanisms are arranged parallel to each other vertically. The two sets of telescopic mechanisms have the same structure and are positioned correspondingly vertically, which helps to improve the support during slitting and the flatness of the stretch film roll side during slitting. A connecting sleeve 304 is rotatably connected to the connecting shaft 303, and a vertical plate 20 is bolted to the connecting sleeve 304. 8. Several slitting mechanisms are installed on the telescopic mechanism on the rotating block 207, and several support mechanisms are installed on the telescopic mechanism on the connecting shaft 303. The support mechanisms are used to support the winding film rolls. An adjustment mechanism is provided on the vertical plate 208. The adjustment mechanism is connected to the telescopic mechanism on the rotating block 207. The adjustment mechanism is used to change the length of the telescopic mechanism, thereby adjusting the gap between each slitting mechanism. According to the change in the length of the telescopic mechanism, the interval between each cutter 703 can be steplessly adjusted, thereby slitting winding film rolls of various widths. A connecting mechanism is provided on the adjustment mechanism. The connecting mechanism includes a translation component, which includes a translation sleeve 604. The translation sleeve 604 is connected to the telescopic mechanism on the connecting shaft 303. The connecting mechanism also includes a swing rod 602, which is used to connect the adjustment mechanism and the translation sleeve 604.

[0033] In this embodiment, the telescopic mechanism includes several sets of hinged connecting rods 402. A first shaft 403 is rotatably disposed at the middle position of the connecting rod 402, and a second shaft 404 is rotatably disposed at the end of the connecting rod 402. A connecting plate 401 is rotatably connected to the first shaft 403 at one end. The connecting plate 401 is respectively bolted to the rotating block 207 and one end of the connecting shaft 303. A movable frame 405 is rotatably connected to the first shaft 403 away from the connecting plate 401. The distance between the connecting plate 401 and the movable frame 405 is adjustable. According to the arrangement of the connecting rods 402, the first shaft 403 and the second shaft 404, when the distance between the connecting plate 401 and the movable frame 405 is changed, each connecting rod 402 moves together, so that the distance between the first shaft 403 and the second shaft 404 at each node can be changed at equal intervals.

[0034] In this embodiment, the adjustment mechanism includes a fixed frame 501, which is bolted to the top of the vertical plate 208. An adjusting screw 502 is threaded onto the fixed frame 501. One end of the adjusting screw 502 is bolted to a rotating handle 503. An adjusting sleeve 504 is rotatably connected to the adjusting screw 502 and slidably connected to the fixed frame 501. A sliding rod 505 is bolted to the bottom of the adjusting sleeve 504, and a slider 506 is slidably connected to the sliding rod 505. The slider 506 is connected to the upper side... The movable frame 405 is rotatably connected. When changing the spacing of the cutters 703, the rotating handle 503 is rotated. The rotating handle 503 drives the adjusting screw 502 to rotate. The adjusting screw 502 moves relative to the fixed frame 501. The adjusting screw 502 drives the adjusting sleeve 504 to move horizontally on the fixed frame 501. The adjusting sleeve 504 drives the slider 506 to move through the slide rod 505. The slider 506 pulls the movable frame 405 connected to it, thereby changing the distance between the movable frame 405 and the connecting plate 401, and changing the spacing of each cutter 703.

[0035] In this embodiment, the connecting mechanism includes a mounting shaft 601, which is rotatably connected to the adjusting sleeve 504. A swing rod 602 is bolted to one end of the mounting shaft 601. A pin 603 is welded to the end of the swing rod 602 away from the mounting shaft 601. The translation sleeve 604 is bolted to the lower moving frame 405. The translation sleeve 604 has a insertion hole 606 that mates with the pin 603. A locking bolt 605 is threaded onto the translation sleeve 604. Before the adjusting sleeve 504 moves to adjust the spacing of the cutter 703, the swing rod 602 needs to be flipped down. The pin 603 of the swing rod 602 is inserted into the insertion hole 606 on the translation sleeve 604, so that the two moving frames 405 move synchronously, which helps to improve the flatness of the cutting.

[0036] In this embodiment, a connecting piece 607 is bolted to the adjusting sleeve 504, and a limit rod 608 is slidably connected to the connecting piece 607. The limit rod 608 is provided to limit the swing rod 602 when it is flipped to the high position.

[0037] In this embodiment, a third support frame 302 is bolted to the second motor 301, and the third support frame 302 is bolted to the mounting frame 101. The end of the connecting shaft 303 away from the second motor 301 is bolted to a guide frame 305, and the translation sleeve 604 is slidably connected to the guide frame 305.

[0038] In this embodiment, the slitting mechanism includes a rotating shaft 701, which is rotatably connected to several No. 1 shafts 403 on the upper side. A connecting frame 702 is bolted to the rotating shaft 701, and a cutter 703 is bolted to the connecting frame 702.

[0039] In this embodiment, the support mechanism includes several sets of support shafts 801, which are symmetrically arranged vertically. The support shafts 801 are rotatably connected to several secondary shafts 404 on the lower side. Mounting seats 802 are bolted to the support shafts 801, and connecting pads 803 are bolted to the mounting seats 802. A compensation component is provided on the connecting pads 803. The compensation component includes a connecting screw 804, which is rotatably connected to the connecting pads 803. A square rod 805 is bolted to one end of the connecting screw 804. The square rod 805 is slidably connected to the adjacent set of connecting screws 804. A wedge-shaped piece 806 is threaded onto the connecting screw 804 and slidably connected inside the connecting pads 803. A compensation block 807 is slidably connected to the outside of the connecting pads 803. The compensation block 807 provides tight support to the inner sides of the wound film rolls with different inner diameters, thereby improving the slitting effect.

[0040] In this embodiment, the lifting mechanism includes a hydraulic cylinder 201. A first support frame 202 is bolted to the hydraulic cylinder 201. The first support frame 202 is bolted to the fixed plate 104. A lifting frame 203 is bolted to the output end of the hydraulic cylinder 201. A guide groove 102 is provided on the mounting frame 101. A guide rod 103 is bolted to the guide groove 102. The lifting frame 203 is slidably connected to the guide rod 103. A second support frame 204 is bolted to the lifting frame 203. A first motor 205 is bolted to the second support frame 204. A lifting block 206 is bolted to the second support frame 204. The lifting block 206 is slidably connected to the vertical plate 208. The output end of the first motor 205 passes through the lifting block 206 and is connected to the rotating block 207 via a coupling. The vertical plates 208 are slidably connected to each other.

[0041] Working principle: When using this device, the telescopic mechanism needs to be adjusted to a suitable length according to the inner diameter of the wrapping film roll to be cut and the required cutting width. In the initial state, the swing rod 602 is in a high position, and the limiting rod 608 limits the swing rod 602. First, the wrapping film roll to be cut is placed on the support mechanism from one end of the lower moving frame 405. Then, the limiting rod 608 is pulled to allow the swing rod 602 to flip down. The locking bolt 605 is rotated to move outward, releasing the locking relationship between the translation sleeve 604 and the guide frame 305. The translation sleeve 604 is slid to allow the insertion pin 603 on the swing rod 602 to be inserted into the insertion hole 606. This allows the translation sleeve 604 to move synchronously with the adjusting sleeve 504. At this time, the operator rotates the handle 503, which drives the adjusting screw 502 to rotate. The adjusting screw 502, through its threaded connection with the fixed frame 501, pushes and pulls the adjusting sleeve 504. As the adjusting sleeve 504 moves, due to the connection between the sliding rod 505 and the slider 506, the upper moving frame 405 is pushed and pulled. This, through the mutual cooperation of each set of connecting rods 402, changes the gap between the rotating shaft 701, the connecting frame 702, and the cutter 703, ensuring that the gap between each set of cutters 703 matches the planned cutting width. This adjustment of the gap between each set of cutters 703... Simultaneously, the adjusting sleeve 504 drives the mounting shaft 601 and the swing rod 602 to move. The swing rod 602 drives the insertion pin 603 to move. The insertion pin 603 drives the lower moving frame 405 to move through the translation sleeve 604. The lower moving frame 405 drives the support shaft 801 and the mounting base 802 to move. During this process, the cutting plane of the cutter 703 is always on the perpendicular bisector of the two adjacent connecting pads 803. This ensures the support effect of the compensation block 807 on the inner side of the winding film roll during the cutting process, and makes the cutting position exactly offset from the support position, which improves both the support effect and the cutting flatness. If the compensation block 807 is used at this time... There is a gap between block 807 and the inner side of the wrapping film roll. The operator rotates the two connecting screws 804 at the leftmost end at the same time. Through the setting of square rod 805, all connecting screws 804 rotate synchronously. The connecting screws 804 change the position of wedge plate 806 in the connecting pad 803. In this way, the length of the compensation block 807 extending out of the connecting pad 803 can be adjusted, thereby compensating for the gap between the connecting pad 803 and the wrapping film roll, forming a tight support effect. After the adjustment is completed, the locking bolt 605 is rotated to lock the translation sleeve 604 and the guide frame 305, and the swing rod 602 is flipped up, and the limit rod 608 is reset to limit the swing rod 602.

[0042] After adjustment, the slitting operation begins. At this time, motor 205 (number one) and motor 301 (number two) are activated, with their rotation directions opposite. Motor 205 drives the rotating block 207 to rotate. When the rotating block 207 rotates, the upper telescopic mechanism rotates as a whole, thereby driving the cutter 703 to rotate at high speed. Motor 301 drives the connecting shaft 303 to rotate. The connecting shaft 303 drives the lower telescopic mechanism, guide frame 305, and translation sleeve 604 to rotate as a whole. Then, hydraulic cylinder 201 is activated. Cylinder 201 pushes the lifting frame 203 and the second support frame 204 down, causing the upper telescopic mechanism to move downward. The cutter 703 rotates and cuts the wrapping film roll, forming multiple wrapping film rolls of the same width at one time. After cutting, each set of compensation blocks 807 can still support each narrower wrapping film roll, which helps to improve the flatness of the cut. After the cut is completed, the output shaft of the hydraulic cylinder 201 retracts, the first motor 205 and the second motor 301 stop, and the wrapping film roll is unloaded, completing the cutting operation.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A slitting device for producing stretch film, comprising a mounting frame (101), wherein a fixing plate (104) is fixedly connected to the top of the mounting frame (101), a lifting mechanism is mounted on the fixing plate (104), and a rotating mechanism is provided on the mounting frame (101), characterized in that: The lifting mechanism includes a first motor (205), the output end of which is fixedly connected to a rotating block (207). The rotating mechanism includes a second motor (301), the output end of which is fixedly connected to a connecting shaft (303). One end of the rotating block (207) and the connecting shaft (303) are respectively provided with a telescopic mechanism. The two sets of telescopic mechanisms are arranged parallel to each other vertically. A connecting sleeve (304) is rotatably connected to the connecting shaft (303), and a vertical plate (208) is fixedly connected to the connecting sleeve (304). Several cutting mechanisms are installed on the telescopic mechanism on the rotating block (207), and on the telescopic mechanism on the connecting shaft (303)... Several support mechanisms are installed to support the winding film roll. An adjustment mechanism is provided on the vertical plate (208). The adjustment mechanism is connected to the telescopic mechanism provided on the rotating block (207). The adjustment mechanism is used to change the length of the telescopic mechanism, thereby adjusting the gap between each of the cutting mechanisms. A connecting mechanism is provided on the adjustment mechanism. The connecting mechanism includes a translation component. The translation component includes a translation sleeve (604). The translation sleeve (604) is connected to the telescopic mechanism provided on the connecting shaft (303). The connecting mechanism also includes a swing rod (602). The swing rod (602) is used to connect the adjustment mechanism and the translation sleeve (604).

2. The slitting device for producing stretch film according to claim 1, characterized in that: The telescopic mechanism includes several sets of hinged connecting rods (402). A first shaft (403) is rotatably disposed at the middle position of the connecting rod (402), and a second shaft (404) is rotatably disposed at the end of the connecting rod (402). A connecting plate (401) is rotatably connected to the first shaft (403) at one end. The connecting plate (401) is fixedly connected to the rotating block (207) and one end of the connecting shaft (303). A movable frame (405) is rotatably connected to the first shaft (403) away from the connecting plate (401).

3. A slitting device for producing stretch film according to claim 2, characterized in that: The adjustment mechanism includes a fixed frame (501) which is fixedly connected to the top of the vertical plate (208). An adjusting screw (502) is threaded onto the fixed frame (501). An adjusting sleeve (504) is rotatably connected to the adjusting screw (502). The adjusting sleeve (504) is slidably connected to the fixed frame (501). A sliding rod (505) is fixedly connected to the bottom of the adjusting sleeve (504). A slider (506) is slidably connected to the sliding rod (505). The slider (506) is rotatably connected to the upper movable frame (405).

4. A slitting device for producing stretch film according to claim 3, characterized in that: The connecting mechanism includes a mounting shaft (601) rotatably connected to the adjusting sleeve (504), a swing rod (602) fixedly connected to one end of the mounting shaft (601), and a pin (603) fixedly connected to the end of the swing rod (602) away from the mounting shaft (601). The translation sleeve (604) is fixedly connected to the lower moving frame (405), and a insertion hole (606) is provided on the translation sleeve (604) to cooperate with the pin (603).

5. A slitting device for producing stretch film according to claim 3, characterized in that: A connecting piece (607) is fixedly connected to the adjusting sleeve (504), a limit rod (608) is slidably connected to the connecting piece (607), and a locking bolt (605) is threadedly connected to the translation sleeve (604).

6. A slitting device for producing stretch film according to claim 4, characterized in that: A third support frame (302) is fixedly connected to the second motor (301). The third support frame (302) is fixedly connected to the mounting frame (101). A guide frame (305) is fixedly connected to one end of the connecting shaft (303) away from the second motor (301). The translation sleeve (604) is slidably connected to the guide frame (305).

7. A slitting device for producing stretch film according to claim 2, characterized in that: The slitting mechanism includes a rotating shaft (701), which is rotatably connected to a plurality of the first shafts (403) on the upper side. A connecting frame (702) is fixedly connected to the rotating shaft (701), and a cutter (703) is fixedly connected to the connecting frame (702).

8. A slitting device for producing stretch film according to claim 2, characterized in that: The support mechanism includes several sets of support shafts (801), which are symmetrically arranged vertically. The support shafts (801) are rotatably connected to several second shafts (404) on the lower side. A mounting base (802) is fixedly connected to the support shaft (801), and a connecting pad (803) is fixedly connected to the mounting base (802). A compensation component is provided on the connecting pad (803).

9. A slitting device for producing stretch film according to claim 8, characterized in that: The compensation assembly includes a connecting screw (804) rotatably connected to the connecting pad (803). One end of the connecting screw (804) is fixedly connected to a square rod (805). The square rod (805) is slidably connected to an adjacent set of connecting screws (804). A wedge-shaped piece (806) is threaded onto the connecting screw (804). The wedge-shaped piece (806) is slidably connected inside the connecting pad (803). A compensation block (807) is slidably connected to the outside of the connecting pad (803).

10. A slitting device for producing stretch film according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder (201), a first support frame (202) is fixedly connected to the hydraulic cylinder (201), the first support frame (202) is fixedly connected to the fixed plate (104), a lifting frame (203) is fixedly connected to the output end of the hydraulic cylinder (201), a guide groove (102) is provided on the mounting frame (101), a guide rod (103) is fixedly connected in the guide groove (102), the lifting frame (203) is slidably connected to the guide rod (103), a second support frame (204) is fixedly connected to the lifting frame (203), a first motor (205) is fixedly connected to the second support frame (204), a lifting block (206) is fixedly connected to the second support frame (204), and the lifting block (206) is slidably connected to the vertical plate (208).

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