Packaging film cutting device

Abstract

The utility model provides a packaging film cutting device, which belongs to the technical field of packaging cutting, and comprises a cutting platform, a feeding roller assembly, a transmission roller assembly and a cutting support are arranged on the cutting platform, an electric telescopic rod is arranged on the cutting support, and the transmission roller assembly is arranged on the cutting support. The output end of the electric telescopic rod is connected with a cutting knife set, the cutting knife set comprises a knife holder, a movable groove matched with a cutting knife head is formed in the bottom of the knife holder, a sliding groove is formed in the top end of the movable groove, a sliding block matched with the sliding groove is arranged at the top end of the cutting knife head, and a through hole is formed in the middle of the cutting knife head. A movable shaft is arranged in the middle of the movable groove, the movable shaft penetrates through the through hole and is used for being movably connected with the cutting tool bit in the tool apron, and the portion, at one end of the right side of the movable groove, of the movable shaft is sleeved with a reset spring. The cutting device can solve the problem that effective cutting cannot be carried out by means of pure pressing cutting.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging cutting, and in particular relates to a packaging film cutting device. Background Art

[0002] The packaging film cutting device has a wide range of applications and important prospects in the field of cigarette box packaging. As a common and important form of commodity packaging, cigarette boxes have high requirements for the cutting accuracy and efficiency of packaging films. Usually, the packaging film cutting device needs to be able to quickly and accurately cut the packaging film into suitable sizes to meet the packaging requirements of cigarette boxes; its role is not only to improve production efficiency, but also to ensure the beauty and consistency of packaging.

[0003] At present, packaging film cutting devices usually use a feeding mechanism to ensure the smooth transportation of packaging film, and then combine with a cutting knife to press down and cut, so as to achieve the cutting of packaging film, which provides reliable guarantee for product packaging; but because some packaging films are made of special materials or have high toughness, simply relying on the cutting knife to press down and cut may not be able to completely cut the packaging film material, which directly affects the cutting effect of the cutting knife. Therefore, when facing some packaging films made of special materials, there will be a phenomenon of continuous cutting. Utility Model Content

[0004] In view of this, the utility model provides a packaging film cutting device, which can solve the problem that effective cutting cannot be performed by simply pressing down.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a packaging film cutting device, comprising a cutting platform, a feeding roller assembly, a transmission roller assembly and a cutting bracket are arranged on the cutting platform, wherein the cutting bracket is provided with an electric telescopic rod, and the output end of the electric telescopic rod is connected with a cutting knife group, and the cutting knife group comprises a knife seat, a movable groove adapted to a cutting knife head is provided at the bottom of the knife seat, a sliding groove is provided at the top of the movable groove, a sliding block adapted to the sliding groove is provided at the top of the cutting knife head, a through hole is provided in the middle of the cutting knife head, a movable shaft is provided in the middle of the movable groove, and the movable shaft passes through the through hole and is used for movably connecting the cutting knife head inside the knife seat, a reset spring is sleeved on the outside of the movable shaft at one end of the right side of the movable groove, a first motor is provided on the side wall at one end of the left side of the movable groove, and a cam is fixedly connected to the output shaft of the first motor.

[0007] The technical effects of a packaging film cutting device provided by the utility model are as follows: a feeding roller assembly and a transmission roller assembly are provided for feeding materials in the direction of a cutting bracket, a cutting bracket, an electric telescopic rod and a cutting knife group are provided, the electric telescopic rod drives the cutting knife group to press down and cut at the position of the cutting bracket, a movable groove and a movable shaft are provided inside the knife seat for movably connecting the cutting head, a sliding groove and a sliding block are provided for limiting and guiding the movement of the cutting head, a first motor and a cam are provided for making the cam contact and push one side of the cutting head and cooperate with a reset spring to realize the lateral reciprocating cutting action of the cutting head, thereby further enhancing the cutting effect on the packaging film material.

[0008] On the basis of the above technical solution, a packaging film cutting device of the utility model can also be improved as follows:

[0009] Wherein, the feed roller assembly includes a first fixed frame and an electric rotating rod, the electric rotating rod is rotatably connected to the side wall of the first fixed frame, and the bottom end of the first fixed frame is fixedly connected to the cutting platform.

[0010] Furthermore, a packaging film reel is detachably mounted on the electric rotating rod, blocks are arranged on both sides of the inner cylinder of the packaging film reel, and a slot adapted for the block is provided on the outer surface of the electric rotating rod.

[0011] The beneficial effect of adopting the above-mentioned improvement scheme is as follows: by providing a clamping block and a clamping slot, the packaging film reel is further fixed on the electric rotating rod, and the packaging film reel is driven to rotate by the electric rotating rod to realize the output of the packaging film material.

[0012] Furthermore, the transmission roller assembly includes a main transmission roller and an auxiliary transmission roller, one end of the main transmission roller is fixedly connected to the output shaft of the second motor, and the second motor is fixedly arranged on one side of the second fixing frame.

[0013] The beneficial effect of adopting the above-mentioned improvement scheme is: by providing a second motor, it is used to drive the main transmission roller to rotate.

[0014] Furthermore, the other end of the main transmission roller is rotatably connected to the second fixing frame via a coupling seat, and both ends of the auxiliary transmission roller are also rotatably connected to the second fixing frame.

[0015] The beneficial effect of adopting the above-mentioned improvement scheme is: by providing a coupling seat, the other end of the main driving roller is rotatably connected to the second fixing frame.

[0016] Furthermore, the outer surfaces of the main transmission roller and the auxiliary transmission roller are both coated with an anti-slip layer.

[0017] The beneficial effect of adopting the above-mentioned improvement scheme is that by providing an anti-slip layer, the friction force in contact with the packaging film material is further increased, thereby increasing the transmission efficiency.

[0018] Furthermore, a cutting bottom plate is provided at the bottom of the cutting bracket corresponding to the cutting knife group, and two sides of the cutting bottom plate are fixedly connected to two side inner walls of the cutting bracket.

[0019] Furthermore, a cutting groove is provided on the cutting bottom plate corresponding to the position where the cutting blade falls.

[0020] Furthermore, the length of the cutting groove is greater than the length of the movable groove.

[0021] The beneficial effect of adopting the above-mentioned improvement scheme is that by setting a cutting groove that is longer than the movable groove, there is movable space in the cutting groove for the cutting head to make horizontal cutting.

[0022] Furthermore, two sides of the bottom of the cutting bracket are fixedly connected to two sides of the cutting platform by bolts, and an inclined platform is arranged on one side of the cutting platform close to the cutting bottom plate.

[0023] Compared with the prior art, the packaging film cutting device provided by the utility model has the following beneficial effects: by arranging a feeding roller assembly and a transmission roller assembly for feeding materials in the direction of a cutting bracket, by arranging a cutting bracket, an electric telescopic rod and a cutting knife group, the cutting bracket position is realized, the electric telescopic rod drives the cutting knife group to realize downward pressing and cutting, by arranging a movable groove and a movable shaft inside the knife seat for movably connecting the cutting knife head, by arranging a slide groove and a slider for limiting and guiding the movement of the cutting knife head, by arranging a first motor and a cam for making the cam contact and push one side of the cutting knife head and cooperate with a reset spring to realize the transverse reciprocating cutting action of the cutting knife head, thereby further enhancing the cutting effect of the packaging film material; by arranging a clamping block and a clamping groove for further fixing the packaging film reel on the electric rotating rod, the packaging film reel is driven to rotate by the electric rotating rod to realize the output of the packaging film material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a packaging film cutting device;

[0025] Figure 2 A schematic diagram of a cutting knife assembly of a packaging film cutting device;

[0026] Figure 3 A schematic diagram of a transmission roller assembly of a packaging film cutting device;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 10. Cutting platform; 11. Feed roller assembly; 12. Drive roller assembly; 13. Cutting bracket; 14. Electric telescopic rod; 15. Cutting knife group; 16. Knife holder; 17. Cutting knife head; 18. Movable slot; 19. Slide; 20. Sliding block; 21. Movable shaft; 22. Reset spring; 23. First motor; 24. Cam; 25. First fixed frame; 26. Electric rotating rod; 27. Packaging film reel; 28. Main drive roller; 29. ​​Auxiliary drive roller; 30. Second motor; 31. Second fixed frame; 32. Coupling seat; 33. Cutting bottom plate; 34. Inclined table; 35. Magnetic ring; 36. Hall sensor. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0030] like Figure 1-3 As shown, it is an embodiment of a packaging film cutting device provided by the utility model. In this embodiment, it includes a cutting platform 10, on which a feeding roller assembly 11, a transmission roller assembly 12 and a cutting bracket 13 are arranged, wherein an electric telescopic rod 14 is arranged on the cutting bracket 13, and an output end of the electric telescopic rod 14 is connected to a cutting knife group 15, and the cutting knife group 15 includes a knife seat 16, and a movable groove 18 adapted to a cutting knife head 17 is opened at the bottom of the knife seat 16, and the top of the movable groove 18 is A slide groove 19 is provided, and a slider 20 adapted to the slide groove 19 is provided at the top of the cutting head 17. A through hole is provided in the middle of the cutting head 17, and a movable shaft 21 is provided in the middle of the movable groove 18. The movable shaft 21 passes through the through hole and is used to movably connect the cutting head 17 inside the knife seat 16. A return spring 22 is sleeved on the outside of the movable shaft 21 at the right end of the movable groove 18, and a first motor 23 is provided on the side wall at the left end of the movable groove 18. The output shaft of the first motor 23 is fixedly connected to a cam 24.

[0031] When in use, the packaging film is fed by the feeding roller assembly 11 in cooperation with the driving roller assembly 12, and the electric telescopic rod 14 drives the cutting knife group 15 downward to realize the longitudinal pressing and cutting action. At the same time, the first motor 23 inside the knife seat 16 drives the cam 24 to rotate, and the raised part of the cam 24 contacts the cutting knife head 17 and pushes it to do lateral reciprocating motion along the direction of the movable shaft 21 and cooperate with the reset spring 22, thereby realizing the lateral cutting action. This intermittent reciprocating cutting method is used to achieve more effective cutting of the packaging film material.

[0032] Among them, in the above technical solution, the feed roller assembly 11 includes a first fixed frame 25 and an electric rotating rod 26, the electric rotating rod 26 is rotatably connected to the side wall of the first fixed frame 25, and the bottom end of the first fixed frame 25 is fixedly connected to the cutting platform 10.

[0033] Furthermore, in the above technical solution, a packaging film reel 27 is detachably mounted on the electric rotating rod 26 , blocks are provided on both sides of the inner cylinder of the packaging film reel 27 , and a slot adapted for the block is provided on the outer surface of the electric rotating rod 26 .

[0034] Furthermore, in the above technical solution, the drive roller assembly 12 includes a main drive roller 28 and an auxiliary drive roller 29 , one end of the main drive roller 28 is fixedly connected to the output shaft of the second motor 30 , and the second motor 30 is fixedly arranged on one side of the second fixed frame 31 .

[0035] Furthermore, in the above technical solution, the other end of the main transmission roller 28 is rotatably connected to the second fixing frame 31 via a coupling seat 32 , and both ends of the auxiliary transmission roller 29 are also rotatably connected to the second fixing frame 31 .

[0036] Among them, a magnetic ring 35 is provided at one end of the main transmission roller 28 that is movably connected to the coupling seat 32, and a Hall sensor 36 is provided at the position corresponding to the magnetic ring 35 in the coupling seat 32. The Hall sensor 36 is electrically connected to the PLC controller, and the PLC controller is electrically connected to the electric telescopic rod 14, the second motor 30 and the electric rotating rod 26 respectively.

[0037] When in use, the Hall sensor 36 can collect and measure the magnetic ring 35 according to the rotation period of the main drive roller 28 to cooperate with the PLC controller to set the feeding length of the packaging film material, thereby achieving equidistant cutting of the packaging film material.

[0038] Wherein, the Hall sensors 36 are not arranged inside the coupling seats 32 at both ends of the auxiliary transmission roller 29 .

[0039] Furthermore, in the above technical solution, the outer surfaces of the main driving roller 28 and the auxiliary driving roller 29 are both coated with an anti-slip layer.

[0040] Furthermore, in the above technical solution, a cutting bottom plate 33 is provided at the bottom of the cutting bracket 13 corresponding to the cutting knife assembly 15 , and two sides of the cutting bottom plate 33 are fixedly connected to two side inner walls of the cutting bracket 13 .

[0041] Furthermore, in the above technical solution, a cutting groove is provided on the cutting base plate 33 corresponding to the position where the cutting blade 17 falls.

[0042] Furthermore, in the above technical solution, the length of the cutting groove is greater than the length of the movable groove 18 .

[0043] Furthermore, in the above technical solution, two sides of the bottom of the cutting bracket 13 are fixedly connected to two sides of the cutting platform 10 by bolts, and a ramp 34 is provided on the cutting platform 10 near the cutting bottom plate 33 .

[0044] The bottom end of the inclined platform 34 is fixedly connected to the cutting platform 10 , and the upper side contacts one side of the cutting bottom plate 33 , so that the cut packaging film segments can slide down through the inclined platform 34 for easy collection.

[0045] Specifically, the principle of the utility model is: when in use, the packaging film is fed by the feeding roller assembly 11 in cooperation with the transmission roller assembly 12, and the electric telescopic rod 14 drives the cutting knife group 15 downward to realize the longitudinal pressing and cutting action. At the same time, the first motor 23 inside the knife seat 16 drives the cam 24 to rotate, and the raised part of the cam 24 contacts the cutting knife head 17 and pushes it along the direction of the movable shaft 21 and cooperates with the reset spring 22 to make a lateral reciprocating motion, thereby realizing a lateral cutting action, and utilizing this intermittent reciprocating cutting method to realize a more effective cutting of the packaging film material.

[0046] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A packaging film cutting device, comprising a cutting platform (10), wherein the cutting platform (10) is provided with a feeding roller assembly (11), a transmission roller assembly (12) and a cutting bracket (13), wherein: The cutting support (13) is provided with an electric telescopic rod (14), the output end of the electric telescopic rod (14) is connected to a cutting knife group (15), the cutting knife group (15) comprises a knife seat (16), the bottom of the knife seat (16) is provided with a movable groove (18) adapted to the cutting knife head (17), the top of the movable groove (18) is provided with a slide groove (19), the top of the cutting knife head (17) is provided with a slider (20) adapted to the slide groove (19), the cutting knife head (17) ) is provided with a through hole in the middle part, a movable shaft (21) is provided in the middle part of the movable groove (18), the movable shaft (21) passes through the through hole, and is used to movably connect the cutting head (17) inside the knife seat (16), a return spring (22) is sleeved on the outside of the movable shaft (21) at the right end of the movable groove (18), a first motor (23) is provided on the side wall at the left end of the movable groove (18), and the output shaft of the first motor (23) is fixedly connected to a cam (24).

2. A packaging film cutting device according to claim 1, characterized in that: The feeding roller assembly (11) comprises a first fixed frame (25) and an electric rotating rod (26), wherein the electric rotating rod (26) is rotatably connected to the side wall of the first fixed frame (25), and the bottom end of the first fixed frame (25) is fixedly connected to the cutting platform (10).

3. A packaging film cutting device according to claim 2, characterized in that: A packaging film reel (27) is detachably mounted on the electric rotating rod (26), blocks are provided on both sides of the inner cylinder of the packaging film reel (27), and a slot adapted to fit the block is provided on the outer surface of the electric rotating rod (26).

4. A packaging film cutting device according to claim 3, characterized in that: The transmission roller assembly (12) comprises a main transmission roller (28) and an auxiliary transmission roller (29), one end of the main transmission roller (28) is fixedly connected to the output shaft of a second motor (30), and the second motor (30) is fixedly arranged on one side of a second fixed frame (31).

5. A packaging film cutting device according to claim 4, characterized in that: The other end of the main transmission roller (28) is rotationally connected to the second fixed frame (31) via a coupling seat (32), and both ends of the auxiliary transmission roller (29) are also rotationally connected to the second fixed frame (31).

6. A packaging film cutting device according to claim 5, characterized in that: The outer surfaces of the main transmission roller (28) and the auxiliary transmission roller (29) are both coated with an anti-slip layer.

7. The packaging film cutting device according to claim 6, characterized in that: A cutting bottom plate (33) is provided at the bottom of the cutting bracket (13) corresponding to the cutting knife group (15), and two sides of the cutting bottom plate (33) are fixedly connected to two side inner walls of the cutting bracket (13).

8. The packaging film cutting device according to claim 7, characterized in that: A cutting groove is provided on the cutting bottom plate (33) at a position corresponding to the falling position of the cutting blade head (17).

9. The packaging film cutting device according to claim 8, characterized in that: The length of the cutting groove is greater than the length of the movable groove (18).

10. The packaging film cutting device according to claim 9, characterized in that: The two sides of the bottom of the cutting bracket (13) are fixedly connected to the two sides of the cutting platform (10) by means of bolts, and a ramp (34) is provided on the cutting platform (10) on one side close to the cutting bottom plate (33).

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