Edge cutting device for co-extrusion film production

Abstract

The utility model belongs to the technical field of co-extrusion film production, and particularly relates to an edge cutting device for co-extrusion film production, which comprises a working table, sliding chutes are arranged at two ends of the middle of the working table, an edge cutting mechanism is sleeved in each sliding chute, an open slot is arranged at the top of each edge cutting mechanism, and the edge cutting mechanism is arranged in the open slot. And a driving motor is slidably connected to the interior of each open groove, a slitting knife is fixedly connected to one end of an output shaft of each driving motor, two positioning columns are fixedly connected to the two ends of the workbench, and a guide roller is rotatably connected between every two positioning columns. The edge cutting mechanism is pushed by the first push rod to slide in the sliding groove, the position of the edge cutting mechanism can be adjusted, the situation that the edge cutting mechanism is dislocated in the moving process is prevented through the sliding rod, the position of a cutter can be rapidly adjusted, consumed time and energy are reduced, and the edge cutting efficiency of a co-extrusion film is improved; and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of co-extruded film production, and specifically relates to a trimming device for co-extruded film production. Background Technique

[0002] A co-extruded film is a multi-layer composite film. It is made by using different plastic particles or powders as raw materials and melting and plasticizing each plastic with multiple extruders respectively to obtain a multi-layer composite film. During the production process of the co-extruded film, the edges of the film may have uneven thickness or defective parts due to uneven melt flow, equipment defects, or improper process control. The trimming process can remove these unqualified edge parts to ensure the quality of the final product.

[0003] The trimming device usually consists of a workbench, a driving mechanism, guide rollers, a slitting knife, etc. When in use, the co-extruded film to be trimmed is guided to the slitting knife inside the workbench by the guide rollers, and the slitting knife is driven to move or rotate by the telescopic rod or motor in the driving mechanism to trim the edge of the co-extruded film. The edge of the trimmed co-extruded film is neat, which is convenient for subsequent processing operations such as printing, laminating, bag making, etc.

[0004] In the current prior art, when the traditional trimming device for co-extruded film production is in use, most of its slitting mechanisms are fixed in the device. When the size of the co-extruded film changes, it is not convenient for the staff to adjust the position of the slitting mechanism, which will consume a lot of time and energy, affect the trimming efficiency of the co-extruded film, and reduce the working efficiency of the device.

[0005] Therefore, a trimming device for co-extruded film production is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the above problems, a trimming device for co-extruded film production is proposed.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A trimming device for co-extruded film production according to the present utility model includes a workbench. Both ends of the middle part of the workbench are provided with sliding grooves. Each sliding groove is internally sleeved with a trimming mechanism. An opening groove is provided at the top of each trimming mechanism. A driving motor is slidably connected inside each opening groove. One end of the output shaft of each driving motor is fixedly connected with a slitting knife. A support plate is fixedly connected to one side of each trimming mechanism. One side of each support plate is rotatably connected to the outer side of the slitting knife; Two positioning columns are fixedly connected to both ends of the workbench. A guiding roller is rotatably connected between every two positioning columns. One side of the top of the guiding roller is rotatably connected with a material tape. The material tape is horizontally arranged on the top of the workbench through two guiding rollers. And one side of the material tape is slidably connected to one side of the support plate. Both ends of the material tape are rotatably connected to the outer side of the slitting knife through the support plate.

[0008] Preferably, two first push rods are fixedly connected to both ends of the workbench. One end of each first push rod is fixedly connected to one side of the trimming mechanism. And each trimming mechanism is slidably connected to the inner wall of the sliding groove through the first push rod. A sliding rod is fixedly connected to the middle of each sliding groove. And the outer wall of each sliding rod is slidably connected to the bottom inner wall of the trimming mechanism.

[0009] Preferably, a second push rod is fixedly connected to the middle of each trimming mechanism. One end of each second push rod is fixedly connected to one side of the driving motor. Each driving motor is slidably connected to the outer wall of the opening groove through the second push rod.

[0010] Preferably, a first spring is sleeved on the outer side of each second push rod. One end of each first spring is fixedly connected to one side of the driving motor. The other end of each first spring is fixedly connected to the inner wall of one side of the trimming mechanism.

[0011] Preferably, a rectangular groove is provided in the middle of each positioning column. A third push rod is fixedly connected to one side of each rectangular groove. One end of each third push rod is fixedly connected with a rectangular block. Each rectangular block is slidably connected to the inner wall of the rectangular groove through the third push rod.

[0012] Preferably, a second spring is fixedly connected to the top of each rectangular block. The other end of each second spring is fixedly connected to one side of the rectangular groove. Another guiding roller is rotatably connected between every two rectangular blocks. And every two guiding rollers are horizontally arranged.

[0013] The beneficial effects of the present utility model:

[0014] The utility model provides a trimming device for co-extruded film production. By pushing the trimming mechanism to slide inside the chute with a first push rod, the position of the trimming mechanism can be adjusted. The slide rod is used to prevent the trimming mechanism from being misaligned during movement, so that the tops of the supporting plates are all in contact with the bottom of the material tape, preventing wrinkles or misalignment at the cutting position of the material tape. The driving motor is operated, and the output shaft of the driving motor drives the cutting knife to rotate. The rotation of the cutting knife can cut off the two ends of the material tape. By adopting the above method, by pushing the trimming mechanism to move inside the chute with the first push rod, the position of the cutting knife can be quickly adjusted, which is convenient for the staff to operate, reduces the time and energy consumed, improves the trimming efficiency of the co-extruded film, and thus improves the working efficiency of the device.

[0015] The utility model provides a trimming device for co-extruded film production. The driving motor can be pushed to slide up and down on the inner wall of the open slot with a second push rod, so that the cutting knife is far away from the supporting plate, preventing wrinkles when the material tape contacts the cutting knife. The contraction of the third push rod drives the rectangular block to slide inside the rectangular slot, so that the guiding roller at the top is far away from another guiding roller, making it easy for the material tape to pass through the two guiding rollers. The two guiding rollers can flatten and guide the material tape, preventing the material tape from being misaligned or wrinkled during transportation, and thus improving the trimming effect of the co-extruded film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0017] Figure 1 is a three-dimensional view of the utility model;

[0018] Figure 2 is a three-dimensional view of the workbench in the utility model;

[0019] Figure 3 is a cross-sectional view of the positioning column in the utility model;

[0020] Figure 4 is a cross-sectional view of the trimming mechanism in the utility model;

[0021] LEGEND DESCRIPTION:

[0022] 1. Workbench; 2. Trimming mechanism; 3. Open slot; 4. Driving motor; 5. Cutting knife; 6. Supporting plate; 7. Material tape; 8. First push rod; 9. Chute; 10. Slide rod; 11. Second push rod; 12. First spring; 13. Positioning column; 14. Rectangular slot; 15. Rectangular block; 16. Guiding roller; 17. Third push rod; 18. Second spring. Detailed implementation mode

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Specific embodiments are given below.

[0025] Please refer to Figure 1 - Figure 4 The present invention provides a trimming device for co-extruded film production, including a workbench 1. Both ends of the middle part of the workbench 1 are provided with sliding grooves 9. Each sliding groove 9 is internally sleeved with a trimming mechanism 2. An opening groove 3 is provided at the top of each trimming mechanism 2. A driving motor 4 is slidably connected inside each opening groove 3. One end of the output shaft of each driving motor 4 is fixedly connected with a slitting knife 5. One side of each trimming mechanism 2 is fixedly connected with a support plate 6. One side of each support plate 6 is rotatably connected to the outer side of the slitting knife 5. Two positioning columns 13 are fixedly connected to both ends of the workbench 1. A guide roller 16 is rotatably connected between every two positioning columns 13. A material tape 7 is rotatably connected to one side of the top of the guide roller 16. The material tape 7 is horizontally arranged on the top of the workbench 1 through the two guide rollers 16, and one side of the material tape 7 is slidably connected to one side of the support plate 6. Both ends of the material tape 7 are rotatably connected to the outer side of the slitting knife 5 through the support plate 6. Two first push rods 8 are fixedly connected to both ends of the workbench 1. One end of each first push rod 8 is fixedly connected to one side of the trimming mechanism 2, and each trimming mechanism 2 is slidably connected to the inner wall of the sliding groove 9 through the first push rod 8. A sliding rod 10 is fixedly connected to the middle of each sliding groove 9, and the outer wall of each sliding rod 10 is slidably connected to the bottom inner wall of the trimming mechanism 2.

[0026] During operation, the strip 7 is guided by two guide rollers 16 so that the strip 7 can be laid flat on the top of the workbench 1. The positioning posts 13 can ensure the stability of the guide rollers 16. The trimming mechanism 2 is pushed by the first push rod 8 to slide inside the chute 9, so that the position of the trimming mechanism 2 can be adjusted. The slide rod 10 is used to prevent the trimming mechanism 2 from being misaligned during movement. After moving the trimming mechanism 2 to an appropriate position, the tops of the support plates 6 are all attached to the bottom of the strip 7 to prevent wrinkles or misalignment at the cutting position of the strip 7. Then, the driving motor 4 is driven to operate. The output shaft of the driving motor 4 drives the cutting knife 5 to rotate. The rotation of the cutting knife 5 can cut off the two ends of the strip 7, thereby completing the trimming of the co-extruded film. By adopting the above method, the position of the cutting knife can be quickly adjusted by pushing the trimming mechanism 2 to move inside the chute 9 by the first push rod 8, which is convenient for the operator to operate, reduces the time and energy consumed, improves the trimming efficiency of the co-extruded film, and thus improves the working efficiency of the device.

[0027] Further, as Figure 2 and Figure 3 shown, a second push rod 11 is fixedly connected to the middle of each trimming mechanism 2. One end of each second push rod 11 is fixedly connected to one side of the driving motor 4. Each driving motor 4 is slidably connected to the outer wall of the opening groove 3 through the second push rod 11. A first spring 12 is sleeved outside each second push rod 11. One end of each first spring 12 is fixedly connected to one side of the driving motor 4, and the other end of each first spring 12 is fixedly connected to the inner wall of one side of the trimming mechanism 2.

[0028] During operation, the driving motor 4 can be pushed to slide up and down on the inner wall of the opening groove 3 through the second push rod 11, so that the cutting knife 5 is away from the support plate 6, preventing wrinkles from appearing at both ends of the strip 7 when the strip 7 comes into contact with the cutting knife 5 during the movement of the trimming mechanism 2. And when the strip 7 passes through the cutting knife 5 and the support plate 6, the contraction of the second push rod 11 can bring the driving motor 4 back to its original position, so that the cutting knife 5 falls on the two ends of the strip 7, improving the trimming effect of the strip 7. The elastic force of the first spring 12 can improve the anti-seismic effect of the device and extend the service life of the structure.

[0029] Further, as Figure 4As shown in the figure, a rectangular groove 14 is provided in the middle of each positioning post 13. A third push rod 17 is fixedly connected to one side of each rectangular groove 14. One end of each third push rod 17 is fixedly connected to a rectangular block 15. Each rectangular block 15 is slidably connected to the inner wall of the rectangular groove 14 via the third push rod 17. A second spring 18 is fixedly connected to the top of each rectangular block 15. The other end of each second spring 18 is fixedly connected to one side of the rectangular groove 14. Another guide roller 16 is rotatably connected between every two rectangular blocks 15, and every two guide rollers 16 are arranged horizontally.

[0030] During operation, the contraction of the third push rod 17 drives the rectangular block 15 to slide inside the rectangular groove 14, so that the top guide roller 16 moves away from another guide roller 16, allowing the strip 7 to easily pass through between the two guide rollers 16. Then, the third push rod 17 is used to push the rectangular block 15 downward, making the top guide roller 16 fit against the top side of the strip 7. The two guide rollers 16 can flatten and guide the strip 7, preventing the strip 7 from being misaligned or wrinkled during transportation, thereby improving the trimming effect of the coextruded film. Moreover, the elastic force of the second spring (18) can improve the seismic resistance of the structure, reduce the consumption of kinetic energy, and extend the service life of the structure.

[0031] Working principle: The contraction of the third push rod 17 drives the rectangular block 15 to slide inside the rectangular groove 14, so that the top guide roller 16 moves away from another guide roller 16, allowing the strip 7 to easily pass through between the two guide rollers 16. Then, the third push rod 17 is used to push the rectangular block 15 downward, making the top guide roller 16 fit against the top side of the strip 7. The two guide rollers 16 can flatten and guide the strip 7. By pushing the trimming mechanism 2 to slide inside the chute 9 with the first push rod 8, the position of the trimming mechanism 2 can be adjusted, and the slide bar 10 is used to prevent the trimming mechanism 2 from being misaligned during movement. After moving the trimming mechanism 2 to an appropriate position, the tops of the support plates 6 are made to fit against the bottom of the strip 7 to prevent wrinkles or misalignment at the cutting position of the strip 7. The second push rod 11 can be used to push the drive motor 4 to slide up and down along the inner wall of the opening groove 3, making the cutting knife 5 move away from the support plate 6. And when the strip 7 passes through the cutting knife 5 and the support plate 6, the second push rod 11 is contracted to bring the drive motor 4 back to its original position, making the cutting knife 5 fall on the two ends' edges of the strip 7. Then, the drive motor 4 is driven to operate, and the output shaft of the drive motor 4 drives the cutting knife 5 to rotate. The rotation of the cutting knife 5 can cut off the two ends' edges of the strip 7, completing the trimming work of the coextruded film.

[0032] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A trimming device for co-extruded film production, comprising a workbench (1), characterized in that: The workbench (1) is provided with a slide groove (9) at both ends of the middle part, a trimming mechanism (2) is sleeved inside each of the slide grooves (9), an opening groove (3) is provided on the top of each of the trimming mechanisms (2), a driving motor (4) is slidably connected inside each of the opening grooves (3), a slitting knife (5) is fixedly connected to one end of the output shaft of each of the driving motors (4), a support plate (6) is fixedly connected to one side of each of the trimming mechanisms (2), and one side of each of the support plates (6) is in contact with the slitting knife (5). The workbench (1) is rotatably connected to the outside; two positioning columns (13) are fixedly connected at both ends of the workbench (1), and a guide roller (16) is rotatably connected between each two positioning columns (13); a material belt (7) is rotatably connected to one side of the top of the guide roller (16); the material belt (7) is horizontally arranged on the top of the workbench (1) via the two guide rollers (16), and one side of the material belt (7) is slidably connected to one side of the support plate (6); and the two ends of the material belt (7) are rotatably connected to the outside of the slitting knife (5) via the support plate (6).

2. The trimming device for co-extrusion film production according to claim 1, characterized in that: Both ends of the workbench (1) are fixedly connected with a first push rod (8), one end of each of the first push rods (8) is fixedly connected to one side of the trimming mechanism (2), and each of the trimming mechanisms (2) is slidably connected to the inner wall of the slide groove (9) via the first push rod (8), a slide rod (10) is fixedly connected to the middle of each of the slide grooves (9), and the outer wall of each of the slide rods (10) is slidably connected to the bottom inner wall of the trimming mechanism (2).

3. The trimming device for co-extrusion film production according to claim 1, characterized in that: A second push rod (11) is fixedly connected to the middle of each trimming mechanism (2), one end of each second push rod (11) is fixedly connected to one side of a drive motor (4), and each drive motor (4) is slidably connected to the outer wall of the opening groove (3) via the second push rod (11).

4. The trimming device for co-extrusion film production according to claim 3, characterized in that: A first spring (12) is sleeved on the outer side of each second push rod (11), one end of each first spring (12) is fixedly connected to one side of the drive motor (4), and the other end of each first spring (12) is fixedly connected to an inner wall of one side of the trimming mechanism (2).

5. The trimming device for co-extrusion film production according to claim 1, characterized in that: A rectangular groove (14) is provided in the middle of each positioning column (13); a third push rod (17) is fixedly connected to one side of each rectangular groove (14); a rectangular block (15) is fixedly connected to one end of each third push rod (17); and each rectangular block (15) is slidably connected to the inner wall of the rectangular groove (14) via the third push rod (17).

6. The trimming device for co-extrusion film production according to claim 5, characterized in that: A second spring (18) is fixedly connected to the top of each rectangular block (15), and the other end of each second spring (18) is fixedly connected to one side of the rectangular groove (14). Another guide roller (16) is rotatably connected between each two rectangular blocks (15), and each two guide rollers (16) are arranged horizontally.

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