PS film cutting device
By designing a slant plate and a second spring, combined with a tension balancing mechanism and a synchronous conveyor belt, the problems of tearing and loosening during the PS film cutting process are solved, achieving stability and efficiency in the cutting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BO MINGSHENG NEW MATERIAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-04-14
AI Technical Summary
PS film is prone to tearing during the cutting process, which can cause the outer film of the barrel to loosen and affect subsequent cutting efficiency.
A second spring mounted on an inclined plate pushes the second auxiliary roller to move inward, clamping the PS film. Combined with the tension balancing mechanism and the synchronous movement of the conveyor belt, this ensures that the film maintains tension balance during the cutting process.
It effectively prevents the PS film from becoming loose during the cutting process, maintains cutting efficiency and film stability, and prevents film wrinkles and positional shifts.
Smart Images
Figure CN224118429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film cutting technology, specifically a PS film cutting device. Background Technology
[0002] A PS film cutting device is a tool used for the precise cutting of PS (polystyrene) film. PS film is widely used in industries such as packaging, printing, electronics, and pharmaceuticals. It has good transparency and processability. In the production process, large-sized PS films need to be cut into the required sizes and shapes.
[0003] In the PS film cutting process, the cutting blade presses down to cut the film into a specific shape. After cutting, the overall stress area of the film decreases. At the same time, as the traction device moves the PS film to one side continuously, the tension on the PS film at the cutting point increases, which can lead to tearing of the PS film. In addition, since the PS film is pulled out from the barrel, there is a reverse tension on the barrel. When the PS film breaks, the reverse tension causes the PS film on the outside of the barrel to loosen. The loosening of the PS film affects the subsequent cutting efficiency. Therefore, we propose a PS film cutting device. Utility Model Content
[0004] To address the shortcomings of existing PS film cutting devices, this invention provides a PS film cutting device with a second spring externally mounted via an inclined plate. When the PS film tears due to cutting, the second spring pushes a second auxiliary roller to move inward, clamping the PS film between the second auxiliary roller and the pressure plate. This prevents the PS film from continuously loosening and solves the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a PS film cutting device, including a conveyor box. A first drive roller is installed on one side inside the conveyor box, and a second drive roller and a third drive roller are installed horizontally in sequence on the other side inside the conveyor box. A fourth drive roller is installed inside the conveyor box and between the first and second drive rollers. A limit plate is installed at one end of the conveyor box, and a material cylinder is placed inside the limit plate. PS film is wound around the outside of the material cylinder. A tension balancing mechanism for adjusting the tension of the PS film is installed inside the conveyor box and between the second and fourth drive rollers. A bracket is installed outside the conveyor box, and a lead screw is installed inside the bracket. An adjusting plate is threaded onto the outside of the lead screw. A horizontal plate and a cutting device mounting bracket are fixedly connected to the bottom end of the adjusting plate in sequence. Two sets of rotating shafts are installed inside the conveyor box between the second and third drive rollers, and a conveyor belt is wound around the outside of the two sets of rotating shafts.
[0006] Preferably, the tension balancing mechanism includes a connecting plate, an inclined plate is movably sleeved at the end of the connecting plate, a first auxiliary roller and a second auxiliary roller are movably sleeved on the inner side of the inclined plate, an L-shaped plate is fixedly connected at the end of the connecting plate, a second spring is installed between the lower end of the inclined plate and the L-shaped plate, and a pressure plate is fixedly connected inside the conveying box.
[0007] Preferably, the PS film is sequentially wound around the outside of the fourth drive roller and the second drive roller, while the PS film installed between the second drive roller and the fourth drive roller is sequentially and crosswise wound around the outside of the first auxiliary roller and the second auxiliary roller. The pressure plate is attached to one side of the PS film and is aligned with the second auxiliary roller.
[0008] Preferably, the PS film mounted on the outside of the barrel is sequentially wound around the outside of the first drive roller, the fourth drive roller, the tension balancing mechanism, the second drive roller, and the third drive roller. The other end of the conveyor box is equipped with a traction roller for pulling the PS film, and the end of the PS film is clamped between the two sets of traction rollers.
[0009] Preferably, the bracket is installed outside the conveyor box and is installed on the upper end of the second and third drive rollers, and the lower end of the cutting device mounting frame is equipped with a cutter for cutting PS film.
[0010] Preferably, a telescopic rod is movably sleeved inside the horizontal plate, a leveling roller is provided inside the lower end of the telescopic rod, and a first spring is wound around the outside of the telescopic rod, with the first spring contacting the upper end of the PS film.
[0011] Preferably, the conveyor belt is supported at the lower end of the PS film, and gears are fixedly connected to one end of the second drive roller and the rotating shaft. A rack chain is wound around the outside of the two sets of gears.
[0012] Compared with existing PS film cutting devices, this invention has the following advantages:
[0013] 1. The PS film cutting device is installed between the second and fourth drive rollers via a tension balancing mechanism. After the PS film is cross-wound around the outside of the first and second auxiliary rollers, the PS film is kept in a state of tension balance under the action of the second spring. At the same time, when tearing occurs during the PS film cutting process, the second spring continuously pushes the broken PS film inward under the action of the second spring. The second auxiliary roller and the pressure plate clamp the PS film to prevent the PS film from becoming loose. The tension balancing mechanism ensures that the PS film maintains a state of tension balance and prevents the PS film from becoming loose after it breaks.
[0014] 2. The PS film cutting device uses a rotating shaft to drive a conveyor belt that supports the lower end of the PS film. With the assistance of gears and racks, the second drive roller and the rotating shaft are controlled to maintain the same rotation speed, that is, the PS film and the conveyor belt move synchronously. The conveyor belt continuously supports the cutting of the PS film, avoiding imbalance between the movement speed of the PS film and the conveyor belt, which would cause friction on the PS film when the conveyor belt moves, resulting in wrinkles in the PS film. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a schematic cross-sectional view of the main body of this utility model;
[0018] Figure 4 This is an enlarged schematic diagram of the cutting structure of this utility model;
[0019] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0020] In the diagram: 1. Conveyor box; 2. First drive roller; 3. Second drive roller; 4. Third drive roller; 5. Fourth drive roller; 6. Limiting plate; 7. Material cylinder; 8. PS film; 9. Traction roller; 10. Tension balancing mechanism; 101. Connecting plate; 102. Inclined plate; 103. First auxiliary roller; 104. L-shaped plate; 105. Second spring; 106. Second auxiliary roller; 107. Pressure plate; 11. Bracket; 12. Lead screw; 13. Adjusting plate; 14. Horizontal plate; 15. Cutting device mounting frame; 16. Cutter; 17. Telescopic rod; 18. Leveling roller; 19. First spring; 20. Rotating shaft; 21. Conveyor belt; 22. Gear; 23. Rack and pinion chain. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A PS film cutting device includes a conveyor box 1. A first drive roller 2 is installed on one side inside the conveyor box 1. A second drive roller 3 and a third drive roller 4 are installed horizontally on the other side inside the conveyor box 1. A fourth drive roller 5 is installed inside the conveyor box 1, between the first and second drive rollers 2 and 3. A limit plate 6 is installed at one end of the conveyor box 1. The first drive roller 2, second drive roller 3, third drive roller 4, and fourth drive roller 5 pull and drive the PS film 8 to move. A material cylinder 7 is placed inside the limit plate 6, and the PS film 8 is wound around the outside of the material cylinder 7. A tension balancing mechanism 10 is installed inside the conveyor box 1, between the second and fourth drive rollers 3 and 5, to adjust the tension of the PS film 8. The tension balancing mechanism 10 is installed between the second and fourth drive rollers 3 and adjusts the tension of the PS film 8. When the PS film 8 tears... During operation, the tension balancing mechanism 10 presses the PS film 8 to prevent the PS film 8 wrapped around the outside of the material cylinder 7 from becoming loose. A bracket 11 is installed on the outside of the conveyor box 1, and a lead screw 12 is installed inside the bracket 11. An adjustment plate 13 is installed on the external thread of the lead screw 12. A horizontal plate 14 and a cutting device mounting frame 15 are fixedly connected to the bottom of the adjustment plate 13 in sequence. When the lead screw 12 is started, the lead screw 12 drives the cutter 16 to move up and down, that is, the cutter 16 effectively cuts the PS film 8. Two sets of rotating shafts 20 are installed inside the conveyor box 1 and between the second drive roller 3 and the third drive roller 4. A conveyor belt 21 is wrapped around the outside of the two sets of rotating shafts 20. The conveyor belt 21 moves synchronously with the PS film 8, that is, the conveyor belt 21 continuously and stably supports the PS film 8, and avoids deviation in the moving speed of the PS film 8 and the conveyor belt 21, which would cause wrinkles in the PS film 8 due to friction.
[0023] Please see Figure 5 The tension balancing mechanism 10 includes a connecting plate 101. An inclined plate 102 is movably sleeved at the end of the connecting plate 101. A first auxiliary roller 103 and a second auxiliary roller 106 are movably sleeved on the inner side of the inclined plate 102. An L-shaped plate 104 is fixedly connected to the end of the connecting plate 101. A second spring 105 is installed between the lower end of the inclined plate 102 and the L-shaped plate 104. A pressure plate 107 is fixedly connected inside the conveying box 1. The L-shaped plate 104 is set at the lower end of the inclined plate 102, and a second spring 105 is installed between the L-shaped plate 104 and the inclined plate 102. The second spring 105 provides a lateral thrust to the lower end of the inclined plate 102, ensuring that the inclined plate 102 moves to one side, that is, providing tension to the wound PS film 8. At the same time, the tension is used to ensure that the PS film 8 maintains a stable state during the cutting and conveying process.
[0024] Please see Figure 5PS film 8 is sequentially wound around the outside of the fourth drive roller 5 and the second drive roller 3. Simultaneously, PS film 8 installed between the second drive roller 3 and the fourth drive roller 5 is sequentially and cross-wound around the outside of the first auxiliary roller 103 and the second auxiliary roller 106. A pressure plate 107 is attached to one side of the PS film 8, and the pressure plate 107 is aligned with the second auxiliary roller 106. The pressure plate 107 is installed inside the conveyor box 1 and is positioned outside the PS film 8. When the PS film 8 breaks during the traction cutting process, the PS film... The film 8 rebounds under its own tension, while the second spring 105 provides elasticity, pushing the inclined plate 102 to rotate around the end of the connecting plate 101. That is, the second auxiliary roller 106 moves to a state of contact with the pressure plate 107, controlling the PS film 8 wrapped around the outside of the second auxiliary roller 106 to press against each other, ensuring that the PS film 8 is positioned and preventing the PS film 8 wrapped around the outside of the barrel 7 from becoming loose. During the transmission process, the tension balancing mechanism 10 continuously drives the PS film 8 to maintain a state of tension balance.
[0025] Please see Figure 3 The PS film 8, mounted on the outside of the material cylinder 7, is sequentially wound around the outside of the first drive roller 2, the fourth drive roller 5, the tension balancing mechanism 10, the second drive roller 3, and the third drive roller 4. At the other end of the conveyor box 1, a traction roller 9 is installed to pull the PS film 8. The end of the PS film 8 is clamped between the two sets of traction rollers 9. By winding the PS film 8 around the outside of the first drive roller 2, the fourth drive roller 5, the tension balancing mechanism 10, the second drive roller 3, and the third drive roller 4, a stable state is ensured during the cutting process of the PS film 8. The traction roller 9 clamps the PS film 8, and when the traction roller 9 rotates, it drives the movement of the PS film 8 to provide traction force.
[0026] Please see Figure 1 The bracket 11 is installed outside the conveyor box 1 and is installed on the upper end of the second drive roller 3 and the third drive roller 4. The lower end of the cutting device mounting frame 15 is equipped with a cutter 16 for cutting the PS film 8. By starting the motor installed outside the lead screw 12, the motor drives the lead screw 12 to rotate. After the lead screw 12 moves with the adjusting plate 13, the height of the cutter 16 can be adjusted. When the cutter 16 is pressed down, the cutter 16 can cut the PS film 8.
[0027] Please see Figure 4A telescopic rod 17 is movably sleeved inside the horizontal plate 14. A leveling roller 18 is provided inside the lower end of the telescopic rod 17. A first spring 19 is wound around the outside of the telescopic rod 17. The first spring 19 contacts the upper end of the PS film 8. When the product is cut by the cutter 16, the telescopic rod 17 is installed on the side of the horizontal plate 14. The first spring 19 controls the leveling roller 18 to continuously press against the upper part of the PS film 8 through the downward pushing force of the telescopic rod 17. At the same time, it pushes the cutter 16 down to cut. During the cutting process, the leveling roller 18 limits the PS film 8 at the cutting part to prevent the PS film 8 from shifting position during cutting.
[0028] Please see Figure 3 and Figure 5 The conveyor belt 21 supports the lower end of the PS film 8. Gears 22 are fixedly connected to one end of the second drive roller 3 and the rotating shaft 20. A rack chain 23 is wound around the outside of the two sets of gears 22 and is sleeved on the outside of the rotating shaft 20 through the conveyor belt 21. The conveyor belt 21 is set at the lower end of the PS film 8. The conveyor belt 21 effectively supports the PS film 8. Gears 22 are installed on the outside of the second drive roller 3 and the rotating shaft 20. At the same time, rack chains 23 are sleeved on the outside of the gears 22. Under the traction of the rack chain 23, the second drive roller 3 and the rotating shaft 20 are driven to rotate synchronously, ensuring that the conveyor belt 21 continuously supports the PS film 8 and improves the stability of the PS film 8 when its position is adjusted.
[0029] Working principle: In use, the PS film 8 is wrapped around the outside of the first drive roller 2, the second drive roller 3, the third drive roller 4, and the fourth drive roller 5, while its end is clamped inside the traction roller 9. The traction roller 9, through the traction force of the moving PS film 8, moves the PS film 8 to the upper part of the rack chain 23, then activates the lead screw 12. The lead screw 12 drives the adjusting plate 13 downwards, controlling the cutter 16 to cut the placed PS film 8. During the cutting process, the conveyor belt 21 supports the PS film 8. Simultaneously, after the PS film 8 is wrapped around the outside of the first auxiliary roller 103 and the second auxiliary roller 106, it is held by the second spring... Under the action of the elasticity of 105, the PS film 8 is kept in a state of tension balance. During the cutting process of the cutter 16, the leveling roller 18 is pushed down by the elasticity of the first spring 19 to ensure that the PS film 8 is not shifted during cutting. At the same time, the width of the paper changes after the PS film 8 is cut. When the PS film 8 is torn, the inclined plate 102 continues to move to one side under the elasticity of the second spring 105, controlling the second auxiliary roller 106 to adhere to the inside of the pressure plate 107, that is, controlling the PS film 8 to be pressed and fixed, and preventing the PS film 8 wrapped around the outside of the material cylinder 7 from becoming loose due to tension balance.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A PS film cutting device, comprising a conveyor box (1), wherein a first drive roller (2) is installed on one side inside the conveyor box (1), and a second drive roller (3) and a third drive roller (4) are installed horizontally on the other side inside the conveyor box (1), and a fourth drive roller (5) is installed inside the conveyor box (1) and between the first drive roller (2) and the second drive roller (3), and a limiting plate (6) is installed at one end of the conveyor box (1), wherein a material cylinder (7) is placed inside the limiting plate (6), and a PS film (8) is wound around the outside of the material cylinder (7), characterized in that: A tension balancing mechanism (10) for adjusting the tension of PS film (8) is installed inside the conveyor box (1) and between the second drive roller (3) and the fourth drive roller (5). A bracket (11) is installed outside the conveyor box (1). A lead screw (12) is installed inside the bracket (11). An adjusting plate (13) is installed on the external thread of the lead screw (12). A horizontal plate (14) and a cutting device mounting bracket (15) are fixedly connected to the bottom end of the adjusting plate (13). Two sets of rotating shafts (20) are installed inside the conveyor box (1) and between the second drive roller (3) and the third drive roller (4). A conveyor belt (21) is wound around the outside of the two sets of rotating shafts (20).
2. The PS film cutting device according to claim 1, characterized in that: The tension balancing mechanism (10) includes a connecting plate (101), an inclined plate (102) is movably sleeved at the end of the connecting plate (101), a first auxiliary roller (103) and a second auxiliary roller (106) are movably sleeved on the inner side of the inclined plate (102), an L-shaped plate (104) is fixedly connected at the end of the connecting plate (101), a second spring (105) is installed between the lower end of the inclined plate (102) and the L-shaped plate (104), and a pressure plate (107) is fixedly connected inside the conveying box (1).
3. The PS film cutting device according to claim 2, characterized in that: The PS film (8) is wound around the outside of the fourth drive roller (5) and the second drive roller (3) in sequence. At the same time, the PS film (8) installed between the second drive roller (3) and the fourth drive roller (5) is wound around the outside of the first auxiliary roller (103) and the second auxiliary roller (106) in sequence. The pressure plate (107) is attached to one side of the PS film (8) and is aligned with the second auxiliary roller (106).
4. The PS film cutting device according to claim 1, characterized in that: The PS film (8) installed on the outside of the barrel (7) is wound around the outside of the first drive roller (2), the fourth drive roller (5), the tension balancing mechanism (10), the second drive roller (3) and the third drive roller (4) in sequence. The other end of the conveyor box (1) is equipped with a traction roller (9) for pulling the PS film (8). The end of the PS film (8) is clamped between the two sets of traction rollers (9).
5. The PS film cutting device according to claim 1, characterized in that: The bracket (11) is installed outside the conveyor box (1) and is installed on the upper end of the second drive roller (3) and the third drive roller (4). The lower end of the cutting device mounting bracket (15) is equipped with a cutter (16) for cutting the PS film (8).
6. The PS film cutting device according to claim 1, characterized in that: The horizontal plate (14) is movably sleeved with a telescopic rod (17), and a leveling roller (18) is provided inside the lower end of the telescopic rod (17). A first spring (19) is wound around the outside of the telescopic rod (17), and the first spring (19) is in contact with the upper end of the PS film (8).
7. The PS film cutting device according to claim 1, characterized in that: The conveyor belt (21) is supported at the lower end of the PS film (8). The second drive roller (3) and the rotating shaft (20) are both fixedly connected to one end of the rotating shaft with gears (22). The two sets of gears (22) are wrapped with rack chains (23).