Slitting equipment for producing and manufacturing wrapping film

Abstract

The utility model relates to the technical field of accessory devices of slitting devices, in particular to slitting equipment for producing and manufacturing a winding film, which can automatically adjust the distance between two groups of slitting rods without hindering slitting and winding, so that the working efficiency is improved, and the practicability is enhanced. Comprising a base and two supporting plates, the top end of the base is connected with the two supporting plates, a feeding rod connected through a bearing is arranged between the two supporting plates, a winding film is arranged on the feeding rod, a slitting roller assembly is arranged at the inner ends of the tops of the two supporting plates, and a tensioning assembly is arranged at the bottom end of the slitting roller assembly. A pressing assembly is arranged at the inner ends of the middles of the two supporting plates, a cutting assembly is arranged at the inner ends of the right sides of the two supporting plates, and the slitting roller assembly comprises two electric air cylinders, two sleeves, two supporting blocks, two limiting blocks, two first sliding blocks and two second slitting rods.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting device attachments, in particular to a slitting device used for the production of stretch films. Background Art

[0002] Stretch film, also known as stretch film, can be traced back to the 1990s, when the main material of the stretch film was PVC. Today's stretch film is mainly made of linear polyethylene (LLDPE) resin and tackifier in a certain ratio, and is a very popular form of packaging. It has high strength and high elasticity, can wrap any geometric shape of goods, and can avoid damage to goods caused by bundling. It has good anti-loosening, rainproof, dustproof, and anti-theft effects.

[0003] A wrapping film slitting device disclosed in the authorization announcement number CN 213084981U of the China Patent Network is retrieved. Through the cooperation between the first guide roller, the first electric telescopic rod, the slide bar, the clamping roller, the second guide roller, the slide groove, the moving block and the second electric telescopic rod, the problem that most current slitting devices cannot flexibly adjust the slitting size according to production needs, affecting work efficiency, and the film is prone to wrinkles during the cutting process, affecting the film quality is effectively solved.

[0004] The above technology has certain shortcomings. When adjusting the slitting size of the slitting device, only the width of the slitting equipment can be adjusted. When the total length of the stretch film that needs the slitting equipment is different, that is, the outer ring diameter of the slit stretch film is different, the distance between the two slitting rollers cannot be adjusted. When the outer ring diameter of the slit stretch film is large, the distance between the two slitting rollers is too short, which will affect the continued winding of the slit stretch film. When the outer ring diameter of the slit stretch film is small, the distance between the two slitting rollers is too long, which will make the stretch film that has not been wound easy to wrinkle and be contaminated with impurities, affecting work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a slitting device for the production of stretch film, which can automatically adjust the distance between two sets of slitting rods and does not hinder slitting and winding, thereby improving work efficiency and enhancing practicality.

[0006] The utility model discloses a slitting device for producing and manufacturing a stretch film, comprising a base and two groups of support plates, the top end of the base is connected with the two groups of support plates, a feeding rod connected with a bearing is arranged between the two groups of support plates, a stretch film is arranged on the feeding rod, a slitting roller assembly is arranged at the top inner end of the two groups of support plates, a tensioning assembly is arranged at the bottom end of the slitting roller assembly, a pressing assembly is arranged at the middle inner end of the two groups of support plates, a cutting assembly is arranged at the right inner end of the two groups of support plates, the slitting roller assembly comprises two groups of electric cylinders, two groups of sleeves, two groups of support blocks, two groups of limit blocks, two groups of first sliding blocks, two groups of second slitting rods, a reduction motor, a first slitting rod and two groups of toothed belts, the outer ends of the two groups of support plates are both provided with a first groove, the outer ends of the two groups of first grooves are provided with a cover plate assembly, the inner ends of the two groups of support plates are provided with two groups of first sliding grooves, the bottom ends of the two groups of first grooves are respectively connected to the electric cylinders, and the right ends of the two groups of electric cylinders are respectively provided with pneumatic rods. The two groups of pneumatic rods are slidably inserted into the first sliding groove respectively, the left ends of the two groups of sleeves are connected with the support blocks respectively, the left ends of the two groups of support blocks are provided with first through holes, the two groups of first through holes are respectively fitted with the pneumatic rod sliding sleeves, the right ends of the two groups of support blocks are respectively connected with the limit blocks, the two groups of limit blocks are respectively fitted with the inner end sliding sleeves of the sleeves, the left ends of the two groups of sleeves are connected with the first sliding block, the inner ends of the two groups of first sliding blocks are respectively connected with the second cutting rod bearings, the front and rear sides of the second cutting rod are provided with first gears, the outer walls of the two groups of pneumatic rods are provided with first springs, the rear end of the rear support plate is connected with the reduction motor, the output end bearing seal of the reduction motor passes through the front end of the rear support plate, the front end of the reduction motor is connected with the first cutting rod, the first cutting rod is connected with the rear end bearing of the front support plate, the front and rear sides of the first cutting rod are provided with second gears, the two groups of first gears and the two groups of second gears are connected with the tensioning assembly sleeve through toothed belts.

[0007] Preferably, the tensioning assembly includes two groups of sliding rods, two groups of fourth rotating rods, and two groups of third gears. The bottom inner ends of the two groups of support plates are provided with a second sliding groove, the top and bottom ends of the two groups of second sliding grooves are respectively connected to the sliding rods, the two groups of sliding rods are respectively provided with a second sliding block, the top outer walls of the two groups of sliding rods are respectively provided with a second spring, the inner ends of the two groups of sliding rods are respectively connected to the fourth rotating rod bearings, the inner ends of the two groups of fourth rotating rods are respectively connected to the third gears, and the two groups of first gears and the two groups of second gears are respectively connected to the third gear set through toothed belts.

[0008] Preferably, the second cutting rod and the two groups of fourth rotating rods are slidably mounted on the mounting frame respectively.

[0009] Preferably, the clamping assembly includes a servo motor, a second rotating rod, two groups of fifth gears, two groups of threaded rods and a third rotating rod, the inner ends of the two groups of support plates are respectively provided with a third slide groove, the inner ends of the two groups of support plates are respectively provided with a second groove, the bottom end of the second groove on the rear side is connected to the servo motor, the output end of the servo motor is connected to the second rotating rod, the front end of the second rotating rod is connected to the front end bearing of the second groove on the front side, two groups of fourth gears are provided on the second rotating rod, the two groups of fourth gears are respectively meshed with the tooth surface of the fifth gear, the bottom ends of the two groups of fifth gears are respectively connected to the threaded rod, the bottom bearing seals of the two groups of threaded rods are inserted into the third slide groove, the bottom ends of the two groups of threaded rods are connected to the third slide groove bearing, and third sliders are respectively provided on the two groups of threaded rods, and the inner ends of the two groups of third sliders are connected to the third rotating rod bearing.

[0010] Preferably, a rubber roller is provided on the outer wall of the third rotating rod.

[0011] Preferably, the cutter assembly includes a slide plate, multiple groups of clamping blocks and multiple groups of first screws, the inner ends of the two groups of support plates are connected to the slide plate, the top of the slide plate is provided with a through slide groove, the bottom ends of the multiple groups of clamping blocks are provided with slide grooves, the multiple groups of slide grooves are all slidably fitted with the slide grooves, the tops of the multiple groups of clamping blocks are provided with first through holes, the multiple groups of first screws respectively pass through the first through holes and the through slide grooves, the bottom ends of the multiple groups of first screws are provided with nuts, and the left ends of the multiple groups of clamping blocks are provided with cutters.

[0012] Preferably, the cover plate assembly includes two groups of cover plates and eight groups of second screws. Four groups of mounting threaded holes are arranged at the outer ends of the two groups of support plates. Mounting through holes are arranged at the outer ends of the two groups of cover plates. The eight groups of second screws are threadedly connected with the mounting threaded holes through the mounting through holes respectively.

[0013] Preferably, the eight groups of mounting through holes are all configured as countersunk holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: first, the base is placed in a suitable position, and then when slitting the stretch film, the position of the cutter assembly is adjusted, and then the two groups of pneumatic rods and the support block are driven by the electric cylinder to move to the right side of the first slide slot, and then the clamping assembly moves upward to support the two-group cutting rod, and then the stretch film is cut by the slitting knife, and it is wound on the two-group cutting rod for collection, and then the reduction motor drives the second slitting rod to rotate, and then the first slitting rod tensioning assembly is driven to rotate through the first gear, the second gear and the third gear of the set, thereby driving the two-group cutting rod to wind the stretch film at the same time, and then during winding, if the diameter of the stretch film on the first slitting rod becomes larger, this will cause the second slitting rod to move to the left through the spring, so as to produce stretch films of different sizes, thereby enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the connection structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the connection structure between the pneumatic rod and the limit block of the utility model;

[0017] Figure 3 It is a schematic diagram of the rear structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the slitting knife and the clamping block of the utility model;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of the A part of the utility model;

[0020] Figure 6 It is a schematic diagram of the enlarged structure of the B part of the utility model;

[0021] Markings in the accompanying drawings: 1, base; 2, support plate; 3, feeding rod; 4, wrapping film; 5, electric cylinder; 6, pneumatic rod; 7, sleeve; 8, support block; 9, limit block; 10, first slider; 11, second slitting rod; 12, first gear; 13, reduction motor; 14, first slitting rod; 15, second gear; 16, toothed belt; 17, slide bar; 18, second slider; 19, second spring; 20, servo motor; 21, second rotating rod; 22, fifth gear; 23, threaded rod; 24, third slider; 25, third rotating rod; 26, rubber roller; 27, slide plate; 28, clamping block; 30, fourth gear; 31, fourth rotating rod; 32, third gear; 33, set frame; 34, first screw; 35, nut; 36, cutter; 37, cover plate; 38, second screw; 40, first spring. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figures 1 to 6As shown, the utility model is a slitting device for the production of stretch film, comprising a base 1 and two groups of support plates 2, the top of the base 1 is connected to the two groups of support plates 2, a feeding rod 3 connected by a bearing is arranged between the two groups of support plates 2, a stretch film 4 is arranged on the feeding rod 3, a slitting roller assembly is arranged at the top inner end of the two groups of support plates 2, a tensioning assembly is arranged at the bottom end of the slitting roller assembly, a pressing assembly is arranged at the middle inner end of the two groups of support plates 2, a cutting assembly is arranged at the right inner end of the two groups of support plates 2, and the slitting roller assembly comprises two groups of electric cylinders 5, two groups of sleeves 7, two groups of support blocks 8, two groups of limit blocks 9, two groups of first sliders 10, two groups of second slitting rods 11, a reduction motor 13, a first slitting rod 14 and two groups Toothed belt 16, the outer ends of the two groups of support plates 2 are provided with first grooves, the outer ends of the two groups of first grooves are provided with cover plate assemblies, the inner ends of the two groups of support plates 2 are provided with two groups of first slide grooves, the bottom ends of the two groups of first grooves are respectively connected to the electric cylinders 5, the right ends of the two groups of electric cylinders 5 are respectively provided with pneumatic rods 6, the two groups of pneumatic rods 6 are respectively slidably inserted into the first slide grooves, the left ends of the two groups of sleeves 7 are respectively connected to the support blocks 8, the left ends of the two groups of support blocks 8 are provided with first through holes, the two groups of first through holes are respectively slidably fitted with the pneumatic rods 6, the right ends of the two groups of support blocks 8 are respectively connected to the limit blocks 9, the two groups of limit blocks 9 are respectively slidably fitted with the inner ends of the sleeves 7, the left ends of the two groups of sleeves 7 are connected to the first slider 10, the two groups of first sliders The inner ends of 10 are respectively connected to the bearings of the second slitting rod 11, and the front and rear sides of the second slitting rod 11 are both provided with first gears 12. The outer walls of the two groups of pneumatic rods 6 are both provided with first springs 40. The rear end of the rear support plate 2 is connected to the reduction motor 13, and the output end bearing seal of the reduction motor 13 passes through the front end of the rear support plate 2. The front end of the reduction motor 13 is connected to the first slitting rod 14, and the first slitting rod 14 is connected to the rear end bearing of the front support plate 2. The front and rear sides of the first slitting rod 14 are both provided with second gears 15. The two groups of first gears 12 and the two groups of second gears 15 are connected to the tensioning assembly set through the toothed belt 16. First, place the base in a suitable position, and then slit the wrapping film When the film is cut, the position of the cutting knife assembly is adjusted, and then the electric cylinder drives the two groups of pneumatic rods and the support block to move to the right side of the first slide slot, and then the clamping assembly moves upward to hold the two-group cutting rods, and then the stretch film is cut by the slitting knife and wound on the two-group cutting rods for collection, and then the reduction motor drives the second slitting rod to rotate, and then the first slitting rod tensioning assembly is driven to rotate through the first gear, the second gear and the third gear of the set, thereby driving the two-group cutting rod to wind the stretch film at the same time, and then during winding, if the diameter of the stretch film on the first slitting rod becomes larger, this will cause the second slitting rod to move to the left through the spring, so as to produce stretch films of different sizes, thereby enhancing practicality.

[0024] As a preferred embodiment of the above embodiment, the tensioning assembly includes two groups of sliding bars 17, two groups of fourth rotating bars 31, and two groups of third gears 32. The bottom inner ends of the two groups of support plates 2 are provided with second sliding grooves, and the top and bottom ends of the two groups of second sliding grooves are respectively connected to the sliding bars 17, and the two groups of sliding bars 17 are respectively provided with second sliders 18. The top outer walls of the two groups of sliding bars 17 are respectively provided with second springs 19. The inner ends of the two groups of sliding bars 17 are respectively connected to the fourth rotating bar 31 bearings, and the inner ends of the two groups of fourth rotating bars 31 are respectively connected to the third gear 32. The two groups of first gears 12 and the two groups of second gears 15 are respectively connected to the third gear 32 through toothed belts 16; when the second cutting rod moves, the toothed belt will drive the third gear to move upward or downward, and the second spring will push the second slider downward, so as to tension the belts on the first gear, the second gear and the third gear, so as to keep the first gear, the second gear and the third gear rotating when the second cutting rod moves, thereby enhancing practicality.

[0025] As a preferred embodiment of the above embodiment, the second slitting rod 11 and the two sets of fourth rotating rods 31 are slidably mounted through the mounting frame 33 respectively; the mounting frame can enhance the linkage between the first slitting rod and the fourth rotating rod, thereby enhancing the stability of the tensioning assembly and thus enhancing the practicality.

[0026] As a preferred embodiment of the above embodiment, the clamping assembly includes a servo motor 20, a second rotating rod 21, two groups of fifth gears 22, two groups of threaded rods 23 and a third rotating rod 25. The inner ends of the two groups of support plates 2 are respectively provided with third slide grooves, and the inner ends of the two groups of support plates 2 are respectively provided with second grooves. The bottom end of the second groove on the rear side is connected to the servo motor 20, and the output end of the servo motor 20 is connected to the second rotating rod 21. The front end of the second rotating rod 21 is connected to the front end bearing of the second groove on the front side. Two groups of fourth gears 30 are provided on the second rotating rod 21, and the two groups of fourth gears 30 are respectively connected to the first The tooth surfaces of the five gears 22 are meshed, the bottom ends of the two groups of fifth gears 22 are respectively connected to the threaded rods 23, the bottom bearing seals of the two groups of threaded rods 23 are inserted into the third slide groove, the bottom ends of the two groups of threaded rods 23 are connected to the third slide groove bearings, and the two groups of threaded rods 23 are respectively provided with third sliders 24, and the inner ends of the two groups of third sliders 24 are both connected to the third rotating rod 25 bearings; when the wrapping film is slitting and winding, the servo motor will drive the third rotating rod to move upward, so as to compress the wrapping film wrapped on the two groups of slitting rods, thereby improving the production quality of the wrapping film and enhancing practicality.

[0027] As a preference of the above embodiment, a rubber roller 26 is provided on the outer wall of the third rotating rod 25; the rubber roller can increase the force bearing area of ​​the third rotating rod, thereby enhancing practicality.

[0028] As a preferred embodiment of the above embodiment, the cutter assembly includes a slide plate 27, multiple groups of clamping blocks 28 and multiple groups of first screws 34. The inner ends of the two groups of support plates 2 are connected to the slide plate 27. The top of the slide plate 27 is provided with a through slide groove, and the bottom ends of the multiple groups of clamping blocks 28 are provided with slide grooves. The multiple groups of slide grooves are all slidably fitted with the slide grooves. The tops of the multiple groups of clamping blocks 28 are provided with first through holes. The multiple groups of first screws 34 pass through the first through holes and the through slide grooves respectively. The bottom ends of the multiple groups of first screws 34 are provided with nuts 35. The left ends of the multiple groups of clamping blocks 28 are provided with cutters 36. The position of the cutter on the slide plate can be adjusted by multiple groups of clamping sliders, and the position between the clamping block and the slide plate can be fixed by the first screws and nuts, thereby enhancing practicality.

[0029] As a preferred embodiment of the above embodiment, the cover plate assembly includes two groups of cover plates 37 and eight groups of second screws 38. Four groups of mounting threaded holes are arranged at the outer ends of the two groups of support plates 2. Mounting through holes are arranged at the outer ends of the two groups of cover plates 37. The eight groups of second screws 38 are threadedly connected with the mounting threaded holes through the mounting through holes respectively. The cover plates can be installed and disassembled by using the eight groups of screws, thereby facilitating the maintenance of the electric cylinder in the first slot and enhancing practicality.

[0030] As a preference of the above embodiment, the eight groups of mounting through holes are all configured as countersunk holes; the eight groups of second screws can be hidden through the countersunk holes, thereby enhancing practicality.

[0031] The utility model is a slitting device for the production of stretch film, and its working principle is as follows: when it is working, the base is first placed in a suitable position, and then when the stretch film is cut, the nut is loosened to slide the clamping block, and the position of the clamping block and the cutter is fixed by tightening the screw, and then the electric cylinder drives the two groups of pneumatic rods and the support block to move to the right side of the first slide slot, and then the two groups of second springs and the two groups of set frames will drive the fourth rotating rod to move downward, so as to tighten the set belt, and then the servo motor will drive the fifth gear and the fourth gear to rotate, so as to drive the threaded rod to rotate, and then drive the third rotating rod and the rubber roller on the second slider to move upward, In this way, it is pressed against the two-component cutting rod, and then the stretch film is cut by the slitting knife and wound on the two-component cutting rod for collection, and then the reduction motor drives the second slitting rod to rotate, and then the fourth rotating rod of the first slitting rod is driven to rotate through the first gear, the second gear and the third gear of the set, thereby simultaneously driving the two-component cutting rod to wind the stretch film, and then during winding, if the diameter of the stretch film on the first slitting rod becomes larger, this will cause the second slitting rod to move to the left through the spring, and the two sets of set frames and the second spring will drive the two sets of second sliders to move upward, thereby tightening the belt, so as to produce stretch films of different diameters on the two-component cutting rod.

[0032] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0033] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A slitting device for producing a stretch film, comprising a base (1) and two groups of support plates (2), the top of the base (1) being connected to the two groups of support plates (2), a feeding rod (3) connected by a bearing being arranged between the two groups of support plates (2), a stretch film (4) being arranged on the feeding rod (3), a slitting roller assembly being arranged at the top inner ends of the two groups of support plates (2), a tensioning assembly being arranged at the bottom ends of the slitting roller assembly, a pressing assembly being arranged at the middle inner ends of the two groups of support plates (2), and a cutting assembly being arranged at the right inner ends of the two groups of support plates (2); characterized in that: The slitting roller assembly comprises two groups of electric cylinders (5), two groups of sleeves (7), two groups of support blocks (8), two groups of limit blocks (9), two groups of first slide blocks (10), two groups of second slitting rods (11), a reduction motor (13), a first slitting rod (14) and two groups of toothed belts (16). The outer ends of the two groups of support plates (2) are both provided with first grooves, the outer ends of the two groups of first grooves are provided with cover plate assemblies, and the inner ends of the two groups of support plates (2) are provided with two groups of first slide blocks. The bottom ends of the two groups of first grooves are respectively connected to the electric cylinders (5), the right ends of the two groups of electric cylinders (5) are respectively provided with pneumatic rods (6), the two groups of pneumatic rods (6) are respectively slidably inserted into the first sliding grooves, the left ends of the two groups of sleeves (7) are respectively connected to the support blocks (8), the left ends of the two groups of support blocks (8) are provided with first through holes, the two groups of first through holes are respectively slidably fitted with the pneumatic rods (6), and the right ends of the two groups of support blocks (8) are respectively connected to the limit blocks (9). The two groups of limit blocks (9) are respectively slidably mounted on the inner end of the sleeve (7), the left ends of the two groups of sleeves (7) are connected to the first slider (10), the inner ends of the two groups of first sliders (10) are respectively connected to the bearings of the second slitting rod (11), the front and rear sides of the second slitting rod (11) are both provided with first gears (12), the outer walls of the two groups of pneumatic rods (6) are both provided with first springs (40), the rear end of the rear support plate (2) is connected to the reduction motor (13), the output end bearing seal of the reduction motor (13) passes through the front end of the rear support plate (2), the front end of the reduction motor (13) is connected to the first slitting rod (14), the first slitting rod (14) is connected to the rear end bearing of the front support plate (2), the front and rear sides of the first slitting rod (14) are both provided with second gears (15), the two groups of first gears (12) and the two groups of second gears (15) are connected to the tensioning assembly set through a toothed belt (16).

2. A slitting device for producing stretch film according to claim 1, characterized in that: The tensioning assembly comprises two groups of slide bars (17), two groups of fourth rotating bars (31), and two groups of third gears (32). The inner ends of the bottoms of the two groups of support plates (2) are both provided with second slide grooves. The top and bottom ends of the two groups of second slide grooves are respectively connected to the slide bars (17). The two groups of slide bars (17) are respectively provided with second sliders (18). The top outer walls of the two groups of slide bars (17) are respectively provided with second springs (19). The inner ends of the two groups of slide bars (17) are respectively connected to the bearings of the fourth rotating bars (31). The inner ends of the two groups of fourth rotating bars (31) are respectively connected to the third gears (32). The two groups of first gears (12) and the two groups of second gears (15) are respectively connected to the third gears (32) through toothed belts (16).

3. A slitting device for producing stretch film according to claim 2, characterized in that: The second cutting rod (11) and the two sets of fourth rotating rods (31) are respectively slidably mounted via mounting frames (33).

4. A slitting device for producing stretch film according to claim 3, characterized in that: The clamping assembly comprises a servo motor (20), a second rotating rod (21), two groups of fifth gears (22), two groups of threaded rods (23) and a third rotating rod (25), the inner ends of the two groups of support plates (2) are respectively provided with a third sliding groove, the inner ends of the two groups of support plates (2) are respectively provided with a second groove, the bottom end of the rear second groove is connected to the servo motor (20), the output end of the servo motor (20) is connected to the second rotating rod (21), the front end of the second rotating rod (21) is connected to the front end bearing of the front second groove, and the second rotating rod (25) is connected to the front end bearing of the second groove. Two groups of fourth gears (30) are arranged on the movable rod (21), and the two groups of fourth gears (30) are respectively meshed with the tooth surface of the fifth gear (22), and the bottom ends of the two groups of fifth gears (22) are respectively connected to the threaded rod (23), and the bottom bearing seals of the two groups of threaded rods (23) are inserted into the third slide groove, and the bottom ends of the two groups of threaded rods (23) are connected to the third slide groove bearing, and the two groups of threaded rods (23) are respectively provided with third sliders (24), and the inner ends of the two groups of third sliders (24) are both connected to the bearing of the third rotating rod (25).

5. A slitting device for producing stretch film according to claim 4, characterized in that: A rubber roller (26) is arranged on the outer wall of the third rotating rod (25).

6. A slitting device for producing stretch film according to claim 5, characterized in that: The cutter assembly comprises a slide plate (27), a plurality of groups of clamping blocks (28) and a plurality of groups of first screws (34). The inner ends of the two groups of support plates (2) are connected to the slide plate (27). The top of the slide plate (27) is provided with a through slide groove. The bottom ends of the plurality of groups of clamping blocks (28) are provided with slide grooves. The plurality of groups of slide grooves are all slidably fitted with the slide grooves. The top ends of the plurality of groups of clamping blocks (28) are provided with first through holes. The plurality of groups of first screws (34) respectively pass through the first through holes and the through slide grooves. The bottom ends of the plurality of groups of first screws (34) are all provided with nuts (35). The left ends of the plurality of groups of clamping blocks (28) are all provided with cutters (36).

7. A slitting device for producing stretch film according to claim 6, characterized in that: The cover plate assembly comprises two groups of cover plates (37) and eight groups of second screws (38), the outer ends of the two groups of support plates (2) are each provided with four groups of mounting threaded holes, the outer ends of the two groups of cover plates (37) are each provided with mounting through holes, and the eight groups of second screws (38) are respectively threadedly connected with the mounting threaded holes through the mounting through holes.

8. A slitting device for producing stretch film according to claim 7, characterized in that: The eight groups of mounting through holes are all configured as countersunk holes.

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