An edge trimming machine suitable for cast film
By introducing dampers, guide blocks, and buffer springs into the cast film edge trimming machine, the problem of edge trimming errors caused by the lateral conveying of the cast film was solved, and the stability of edge trimming and the recycling of waste materials were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN LIOFAN PLASTIC IND CO LTD
- Filing Date
- 2025-05-17
- Publication Date
- 2026-05-26
AI Technical Summary
Existing cast film edge cutting machines are prone to stretching during transverse conveying, leading to edge cutting errors and deviations, which affect processing quality.
A trimming machine suitable for cast film was designed. It adopts a structure with dampers, guide blocks, buffer springs and guide rods to ensure the stability of cast film during transverse conveying, and realizes the recycling and reuse of waste materials through a crushing roller structure.
It improves the stability of the cut edge of the cast film, prevents positional displacement, reduces resource consumption, and achieves effective recycling of waste materials.
Smart Images
Figure CN224275294U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of edge trimming machine technology, specifically an edge trimming machine suitable for cast film. Background Technology
[0002] Cast film is a non-stretched, non-oriented flat extruded film produced by rapid cooling of melt. It has excellent heat-sealing performance and good transparency, and is one of the main packaging composite substrates. During the processing of cast film, especially after the melt is rapidly cooled and flat extruded into a film, it is inevitable that the thickness of the two sides and the center will be inconsistent, and the two sides will be uneven. In order to ensure the overall processing quality of cast film, the two sides of the cast film need to be cut and trimmed by edge trimming equipment.
[0003] Currently available cast film trimming machines require the cast film to be transported laterally and passed under the cutter when trimming the cast film. The longitudinal movement of the cutter is then used to trim the cast film. However, directly transporting the cast film laterally will cause it to be stretched during the trimming process, which will affect the subsequent normal trimming of the cast film, resulting in trimming errors and deviations, and poor overall practicality.
[0004] Therefore, this utility model provides an edge trimming machine suitable for cast film. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and address the problem that current cast film trimming machines on the market require the cast film to be transported laterally and passed under a cutter before the longitudinal movement of the cutter is used to trim the edges, directly transporting the cast film laterally causes it to be stretched during the trimming process, thus affecting the subsequent normal trimming process, leading to trimming errors and deviations, and poor overall practicality, this utility model proposes a trimming machine suitable for cast films.
[0006] The technical solution adopted by this utility model to solve its technical problem is: the edge trimming machine applicable to cast film according to this utility model includes a machine body, a support fixed at the middle of the top of the machine body, a cylinder fixed at one side of the top of the support, a lifting seat connected to the output end of the cylinder, a cutter fixed at the bottom of the lifting seat, and a guide rod fixed at one side of the top of the lifting seat.
[0007] A fixed seat is distributed on one side of the bracket, and a damper is fixedly installed on the inner side of the fixed seat. A movable block is fixedly connected to the bottom of the damper, and a pressure roller is rotatably connected to one end of the movable block. A guide block is fixedly installed on the side wall of the movable block, and a vertical rod passes through the inner side of the guide block. A buffer spring is sleeved on the outer side of one end of the vertical rod.
[0008] Furthermore, a side plate is fixedly provided on the side wall of the machine body, and a first motor is fixedly provided on one end surface of the side plate, and a rotating roller is connected to the output end of the first motor.
[0009] Furthermore, a cutting groove is provided on the upper surface of the machine body, a second motor is fixedly provided on the side wall of the machine body, and the output end of the second motor is connected to a first crushing roller. The other end of the first crushing roller is fixedly connected to a drive gear, and one end of the drive gear is connected to a driven gear. One side of the driven gear is connected to a second crushing roller, and a guide plate is distributed above the second crushing roller.
[0010] Furthermore, the lifting seat is slidably connected to the bracket via the guide rod, and the guide rod is symmetrically distributed along the vertical center line of the lifting seat.
[0011] Furthermore, the movable block is slidably connected to the vertical rod via the guide block, and the guide block is symmetrically distributed along the vertical center line of the movable block.
[0012] Furthermore, the two ends of the buffer spring are respectively fixedly connected to one end surface of the guide block and the inner side wall of the fixed seat, and the buffer springs are symmetrically distributed along the vertical center line of the fixed seat.
[0013] Furthermore, the driving gear is meshed with the driven gear through its teeth, and the driving gear is fixedly connected to the first crushing roller.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The edge trimming machine for cast film described in this utility model, through the setting of dampers, guide blocks, vertical rods and buffer springs, can easily use pressure rollers to effectively press and limit the cast film conveyed laterally, ensuring the stability of the cast film in the subsequent edge trimming process, preventing the cast film from shifting position during the subsequent edge trimming process, which would lead to positional deviations in the subsequent edge trimming, and thus improving its overall practicality.
[0016] 2. The edge trimming machine for cast film described in this utility model, through the setting of a second motor, crushing roller, driving gear and driven gear, can easily realize the opposite movement of the two crushing rollers, and then use the rotation of the crushing rollers to crush the cast film waste that has been cut off, thereby facilitating the subsequent recycling and reuse of the waste and reducing resource consumption. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a side view of the fixed base structure in this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the body in this utility model;
[0021] Figure 4 This is a side view of the bracket structure in this utility model;
[0022] Figure 5 This is a side view of the body structure of the present invention;
[0023] In the diagram: 1. Machine body; 2. Support frame; 3. Cylinder; 4. Lifting seat; 5. Cutter; 6. Guide rod; 7. Fixed seat; 8. Damper; 9. Moving block; 10. Pressure roller; 11. Guide block; 12. Vertical rod; 13. Buffer spring; 14. Side plate; 15. First motor; 16. Rotating roller; 17. Cutting groove; 18. Second motor; 19. First crushing roller; 20. Drive gear; 21. Driven gear; 22. Second crushing roller; 23. Guide plate. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Example 1:
[0026] like Figures 1 to 5 As shown, the present invention provides an edge trimming machine for cast film, comprising a machine body 1, a support 2 fixed at the top center of the machine body 1, a cylinder 3 fixed at one side of the top of the support 2, a lifting seat 4 connected to the output end of the cylinder 3, a cutter 5 fixed at the bottom of the lifting seat 4, and a guide rod 6 fixed at one side of the top of the lifting seat 4.
[0027] A fixed seat 7 is distributed on one side of the bracket 2, and a damper 8 is fixedly installed on the inner side of the fixed seat 7. A movable block 9 is fixedly connected to the bottom of the damper 8, and a pressure roller 10 is rotatably connected to one end of the movable block 9. A guide block 11 is fixedly installed on the side wall of the movable block 9, and a vertical rod 12 passes through the inner side of the guide block 11. A buffer spring 13 is sleeved on the outer side of one end of the vertical rod 12.
[0028] During operation, the first motor 15 fixed on one side of the machine body 1 rotates the rotating roller 16. The rotation of the rotating roller 16 on one side then laterally conveys the cast film, causing it to pass under the two pressure rollers 10 and wrap around the surface of the rotating roller 16 on the other side. As the cast film passes under the pressure roller 10 under the rotation of the rotating roller 16, it pushes the pressure roller 10 longitudinally, achieving longitudinal movement. This longitudinal movement of the pressure roller 10 then drives the movable block 9 to move longitudinally as well. At this time, the longitudinal movement of the movable block 9 compresses the damper 8, causing deformation of the damper 8. Simultaneously, the longitudinal movement of the movable block 9 drives the guide block 11 to move longitudinally along the vertical rod 12, thereby improving the stability of the movable block 9 during its longitudinal movement. At the same time, when the guide block 11 moves longitudinally along the vertical rod 12, it causes the buffer spring 13 to deform, generating a reverse effect. The force is such that the reverse force generated by the deformation of the buffer spring 13 and the deformation of the damper 8 can be used to push the pressure roller 10 in the opposite direction. The pressure roller 10 can then be used to effectively limit the transversely conveyed cast film, which helps to ensure the stability of the cast film during the edge trimming process. When the cast film needs to be trimmed, the cast film is conveyed to the designated position by the rotation of the rotating roller 16. Then the rotation of the rotating roller 16 is stopped, and the pressure rollers 10 arranged symmetrically on both sides limit the cast film to be trimmed. Then the cylinder 3 works to push the lifting seat 4 fixedly connected to its bottom longitudinally, realizing the longitudinal movement of the lifting seat 4. Then the longitudinal movement of the lifting seat 4 drives the cutter 5 to move longitudinally as well, thereby realizing the edge trimming of the cast film by the movement of the cutter 5. The symmetrical arrangement of the guide rod 6 can improve the stability of the lifting seat 4 during the longitudinal movement.
[0029] A side plate 14 is fixedly provided on the side wall of the machine body 1, and a first motor 15 is fixedly provided on one end surface of the side plate 14. The output end of the first motor 15 is connected to a rotating roller 16.
[0030] During operation, the operation of the first motor 15 facilitates the rotation of the rotating roller 16, which in turn feeds the cast film. This allows for subsequent edge trimming of the cast film using the cutter 5. Since the side plate 14, the first motor 15, and the rotating roller 16 are symmetrically distributed along the vertical center line of the machine body 1, the symmetrically arranged rotating rollers 16 on both sides can facilitate subsequent feeding and winding of the cast film. During the conveying of the cast film, the first motor 15 drives the rotating roller 16 to move intermittently, which facilitates better subsequent edge trimming of the cast film.
[0031] A cutting groove 17 is provided on the upper surface of the machine body 1. A second motor 18 is fixedly provided on the side wall of the machine body 1. The output end of the second motor 18 is connected to a first crushing roller 19. The other end of the first crushing roller 19 is fixedly connected to a drive gear 20. One end of the drive gear 20 is connected to a driven gear 21. A second crushing roller 22 is connected to one side of the driven gear 21. A guide plate 23 is distributed above the second crushing roller 22.
[0032] During operation, the cast film stops moving at the designated position, and then the cutter 5 moves longitudinally to trim the edges of the cast film. The cut-off waste material falls into the bottom inner side of the machine body 1 through the cutting groove 17. The waste material then moves along the guide plate 23 and passes through the two crushing rollers. At the same time, the second motor 18 works, causing the first crushing roller 19 connected to its output end to rotate. Under the rotation of the first crushing roller 19, the drive gear 20 fixedly connected to its other end also rotates. Since the drive gear 20 and the driven gear 21 are meshed through teeth, the rotation of the drive gear 20 can easily realize the rotation of the driven gear 21, thereby realizing the rotation of the second crushing roller 22. This achieves the opposite movement of the two crushing rollers, which can then be used to crush the waste material. This facilitates the subsequent recycling and reuse of the crushed waste material, reducing resource consumption.
[0033] The lifting seat 4 is slidably connected to the bracket 2 via guide rods 6, and the guide rods 6 are symmetrically distributed along the vertical center line of the lifting seat 4;
[0034] During operation, the lifting seat 4 moves longitudinally under the action of the cylinder 3. At the same time, the longitudinal movement of the lifting seat 4 will drive the guide rod 6 to move longitudinally along the bracket 2, thereby improving the stability of the lifting seat 4 during the longitudinal movement.
[0035] The movable block 9 is slidably connected to the vertical rod 12 via the guide block 11, and the guide block 11 is symmetrically distributed along the vertical center line of the movable block 9;
[0036] During operation, since the guide blocks 11 are symmetrically arranged on both sides of the movable block 9 and the guide blocks 11 are connected to the vertical rod 12, when the movable block 9 moves longitudinally, it will drive the guide blocks 11 to move longitudinally along the vertical rod 12, which facilitates the subsequent improvement of the stability of the movable block 9 during longitudinal movement.
[0037] The two ends of the buffer spring 13 are fixedly connected to one end surface of the guide block 11 and the inner side wall of the fixed seat 7, respectively, and the buffer spring 13 is symmetrically distributed along the vertical center line of the fixed seat 7.
[0038] When the guide block 11 moves longitudinally along the vertical rod 12, it will cause the buffer spring 13 to deform and generate a reverse force, which facilitates the subsequent deformation of the damper 8 to achieve the purpose of buffering.
[0039] The driving gear 20 is meshed with the driven gear 21 through its teeth, and the driving gear 20 is fixedly connected to the first crushing roller 19.
[0040] During operation, since the driving gear 20 and the driven gear 21 are meshed, when the driving gear 20 rotates, the driven gear 21 meshed on one side will rotate accordingly. In turn, the rotation of the driven gear 21 will cause the second crushing roller 22 fixedly connected on one side to rotate accordingly, which will facilitate the subsequent rotation of the first crushing roller 19 to crush the waste material.
[0041] Specific working principle:
[0042] The operation of the first motor 15 facilitates the subsequent rotation of the rotating roller 16, which in turn feeds the cast film to the area below the cutter 5. The rotation of the rotating roller 16 is then stopped. As the cast film passes under the pressure roller 10 under the rotation of the rotating roller 16, it pushes the pressure roller 10, causing its longitudinal movement. This longitudinal movement of the pressure roller 10 then drives the movable block 9 to move longitudinally as well. At this time, the longitudinal movement of the movable block 9 compresses the damper 8, causing deformation of the damper 8. Simultaneously, the longitudinal movement of the movable block 9... The guide block 11 moves longitudinally along the vertical rod 12 to improve the stability of the movable block 9 during longitudinal movement. Simultaneously, when the guide block 11 moves longitudinally along the vertical rod 12, it causes the buffer spring 13 to deform, generating a reverse force. This facilitates the subsequent use of the reverse force generated by the deformation of the buffer spring 13 and the deformation of the damper 8 to push the pressure roller 10 in the opposite direction. The pressure roller 10 can then effectively limit the transversely conveyed cast film, ensuring the stability of the cast film during the edge trimming process. When edge trimming of the cast film is required, the cylinder 3... The machine moves longitudinally, pushing the lifting seat 4 fixedly connected to its bottom. This longitudinal movement of the lifting seat 4 then drives the cutter 5 to move longitudinally as well, thereby using the movement of the cutter 5 to trim the edges of the cast film. The symmetrical arrangement of the guide rods 6 improves the stability of the lifting seat 4 during its longitudinal movement. The cut-off waste material falls into the inner bottom of the machine body 1 through the cutting groove 17. The waste material then moves along the guide plate 23 and passes through the two crushing rollers. At the same time, the second motor 18 operates, causing the first crushing roller 19 connected to its output end to move forward. The rotation of the first crushing roller 19 causes the drive gear 20, which is fixedly connected to its other end, to rotate as well. Since the drive gear 20 and the driven gear 21 are meshed together by teeth, the rotation of the drive gear 20 can easily drive the rotation of the driven gear 21, which in turn drives the rotation of the second crushing roller 22. This results in the two crushing rollers moving in opposite directions, which can then be used to crush the waste material. This facilitates the subsequent recycling and reuse of the crushed waste material, reducing resource consumption.
[0043] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "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 limiting the scope of protection of this utility model.
[0045] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A trimming machine suitable for cast film, characterized in that, Includes a body (1), a bracket (2) fixed at the top center of the body (1), a cylinder (3) fixed at one side of the top of the bracket (2), a lifting seat (4) connected to the output end of the cylinder (3), a cutter (5) fixed at the bottom of the lifting seat (4), and a guide rod (6) fixed at one side of the top of the lifting seat (4). A fixed seat (7) is distributed on one side of the bracket (2), and a damper (8) is fixedly provided on the inner side of the fixed seat (7). A movable block (9) is fixedly connected to the bottom of the damper (8), and a pressure roller (10) is rotatably connected to one end of the movable block (9). A guide block (11) is fixedly provided on the side wall of the movable block (9), and a vertical rod (12) passes through the inner side of the guide block (11). A buffer spring (13) is sleeved on the outer side of one end of the vertical rod (12).
2. The edge trimming machine suitable for cast film according to claim 1, characterized in that, The side wall of the machine body (1) is fixedly provided with a side plate (14), and a first motor (15) is fixedly provided on one end surface of the side plate (14), and the output end of the first motor (15) is connected to a rotating roller (16).
3. The edge trimming machine suitable for cast film according to claim 1, characterized in that, The upper surface of the machine body (1) is provided with a cutting groove (17). A second motor (18) is fixedly provided on the side wall of the machine body (1). The output end of the second motor (18) is connected to a first crushing roller (19). The other end of the first crushing roller (19) is fixedly connected to a drive gear (20). One end of the drive gear (20) is connected to a driven gear (21). One side of the driven gear (21) is connected to a second crushing roller (22). A guide plate (23) is distributed above the second crushing roller (22).
4. The edge trimming machine suitable for cast film according to claim 1, characterized in that, The lifting seat (4) is slidably connected to the bracket (2) through the guide rod (6), and the guide rod (6) is symmetrically distributed along the vertical center line of the lifting seat (4).
5. A trimming machine suitable for cast film according to claim 1, characterized in that, The movable block (9) is slidably connected to the vertical rod (12) through the guide block (11), and the guide block (11) is symmetrically distributed along the vertical center line of the movable block (9).
6. The edge trimming machine for cast film according to claim 1, characterized in that, The two ends of the buffer spring (13) are respectively fixedly connected to one end surface of the guide block (11) and the inner side wall of the fixed seat (7), and the buffer spring (13) is symmetrically distributed along the vertical center line of the fixed seat (7).
7. A trimming machine suitable for cast film according to claim 3, characterized in that, The driving gear (20) is meshed with the driven gear (21) through its teeth, and the driving gear (20) is fixedly connected to the first crushing roller (19).