Width adjusting device for curling of PVC (polyvinyl chloride) film
The PVC thin film width adjustment device addresses uneven winding by using adjustable blades and a gas cylinder mechanism to achieve consistent cutting, improving the quality and stability of the rolling process.
Patent Information
- Application Number
- CN202422379200.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The width of PVC film is inconsistent during the production process, resulting in uneven winding and affecting product quality.
A width adjustment device for curling PVC film is designed. By setting a slide groove and a slider on the crossbeam, installing a blade on the slider, cutting both sides of the film through the cylinder, adjusting the blade spacing to adjust the film width, and rotating and resetting the blade through the support block and guide bracket to ensure cutting accuracy.
The uniformity of film width is achieved, the stability and quality of film rolling is improved, and the film is more regular and stable after rolling is ensured.
Smart Images
Figure CN223102304U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film production equipment, in particular to a width adjustment device for curling PVC films. Background Art
[0002] PVC film is a kind of film material made of polyvinyl chloride. Due to its excellent properties such as high transparency, good chemical resistance, waterproof, flame retardant and other characteristics, it is widely used in many industries.
[0003] During the production process of the film, the overall width will change, and the situation of being wide at the front end and narrow in the middle will occur. When the roller winds up the film, the width of the film when it is initially unfolded is inconsistent with the width when it is unfolded in the middle. Therefore, it will cause uneven winding of the film, and the stability of the wound roll is poor, affecting the final product quality of the film.
[0004] Therefore, there is an urgent need for a width adjustment device for curling PVC films to improve the film quality. Summary of the Invention
[0005] The purpose of the utility model is to overcome the above deficiencies and provide a width adjustment device for curling PVC films to improve the film quality.
[0006] The purpose of the utility model is achieved as follows:
[0007] A width adjustment device for curling PVC films includes a cross beam. Sliding grooves are opened at both ends of the cross beam. Sliders are slidably installed in the sliding grooves and are fixed by bolts. A bracket is fixedly installed at the bottom of one side of the slider. A cylinder is fixedly installed at the bottom of the bracket. The output end of the cylinder is fixedly provided with a push plate. An inner clamping plate is arranged outside the push plate. The inner clamping plate is movably connected to the push plate through a rotating shaft installed on the back. The other end of the rotating shaft penetrates through the push plate and is fixedly connected to a baffle. A torsion spring is sleeved on the rotating shaft. An outer clamping plate is installed outside the inner clamping plate. A blade is installed between the outer clamping plate and the inner clamping plate, and the outer clamping plate and the inner clamping plate clamp the blade through a locking knob. A support block is fixedly provided on the outer side wall of one end of the outer clamping plate. A guiding bracket is movably installed at the bottom of the other side of the slider.
[0008] Preferably, a resisting plate is arranged at the bottom of the outer wall of the end of the push plate away from the slider, and a groove for accommodating the resisting plate is opened at the bottom of the inner clamping plate.
[0009] Preferably, one end of the torsion spring is fixedly engaged with the push plate, and the other end of the torsion spring is fixedly engaged with the baffle.
[0010] Preferably, the end of the support block away from the outer clamping plate abuts against the guiding bracket, and the side view of this end of the support block is arc-shaped.
[0011] Preferably, the guiding bracket is a plate-like structure that is inclined downward as a whole and has an "L"-shaped cross-section, and the supporting block abuts against the inclined surface of the guiding bracket.
[0012] Preferably, serrated grooves are formed on the outer walls of the opposite surfaces of the inner clamping plate and the outer clamping plate.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. For a width adjustment device for coiling a PVC film of the present utility model, by providing a sliding groove on the cross beam, a slider is slidably installed in the sliding groove and a blade is fixed at the bottom. The two blades on the cross beam cut both sides of the film. By sliding the slider in the sliding groove, the distance between the two blades can be adjusted, so as to adjust the width of the film, keep the width of the film consistent during cutting, and make it more regular and stable after winding, thereby improving the quality of the film.
[0015] 2. For a width adjustment device for coiling a PVC film of the present utility model, by providing a supporting block on the outer clamping plate, and the supporting block abuts against the inclined surface of the guiding bracket. When the cylinder pushes the blade to move, the supporting block slides along the guiding bracket to realize the rotation of the inner clamping plate, so that the blade inclines, the cutting edge descends and cutting is realized, and the side view of this end of the supporting block is arc-shaped to reduce the frictional force and make the sliding of the supporting block smoother.
[0016] 3. For a width adjustment device for coiling a PVC film of the present utility model, by providing a torsion spring between the push plate and the baffle plate, when the cylinder retracts, the inner clamping plate rotates reversely under the action of the torsion spring to realize resetting, without manual operation, and the abutting plate at the bottom of the push plate plays a limiting role on the inner clamping plate to prevent the inner clamping plate from rotating excessively and ensure the resetting of the inner clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic three-dimensional structure diagram of a width adjustment device for coiling a PVC film of the present utility model.
[0018] Figure 2 is a schematic structure diagram of the slider of a width adjustment device for coiling a PVC film of the present utility model.
[0019] Figure 3 is a schematic structure diagram of the guiding bracket of a width adjustment device for coiling a PVC film of the present utility model.
[0020] Figure 4 is a schematic structure diagram of the push plate of a width adjustment device for coiling a PVC film of the present utility model.
[0021] Figure 5Explosion structure schematic diagram of a partial width adjustment device for curling a PVC film according to the present utility model.
[0022] Wherein: cross beam 1, sliding groove 2, sliding block 3, support 4, air cylinder 5, push plate 6, inner clamping plate 7, rotating shaft 8, abutting plate 9, baffle 10, torsion spring 11, outer clamping plate 12, locking knob 13, blade 14, support block 15, guiding support 16. Specific implementation manner
[0023] See Figures 1 to 5 , a width adjustment device for curling a PVC film according to the present utility model, includes a cross beam 1. Step holes are provided at both ends of the cross beam 1 as sliding grooves 2. A sliding block 3 is slidably installed in the sliding groove 2. The cross section of the sliding block 3 is in a "T" shape, and the sliding block 3 is fixed by bolts. By sliding the sliding block 3 in the sliding groove 2, the distance between two blades 14 on the cross beam 1 can be adjusted, so as to adjust the width of the film.
[0024] A support 4 is fixedly installed at the bottom of one side of the sliding block 3. An air cylinder 5 is fixedly installed at the bottom of the support 4. The output end of the air cylinder 5 is fixedly provided with a push plate 6. An inner clamping plate 7 is arranged on the outer side of the push plate 6. The inner clamping plate 7 is movably connected to the push plate 6 through a rotating shaft 8 installed on the back. An abutting plate 9 is arranged at the bottom of the outer wall of the end of the push plate 6 away from the sliding block 3. A groove for accommodating the abutting plate 9 is provided at the bottom of the inner clamping plate 7. The abutting plate 9 at the bottom of the push plate 6 plays a limiting role on the inner clamping plate 7, preventing the inner clamping plate 7 from rotating excessively and ensuring the reset of the inner clamping plate 7.
[0025] The other end of the rotating shaft 8 passes through the push plate 6 and is fixedly connected to the baffle 10. A torsion spring 11 is sleeved on the rotating shaft 8. One end of the torsion spring 11 is fixedly engaged with the push plate 6, and the other end of the torsion spring 11 is fixedly engaged with the baffle 10. When the air cylinder 5 retracts, the inner clamping plate 7 rotates reversely under the action of the torsion spring 11 to achieve reset, without manual operation.
[0026] An outer clamping plate 12 is installed on the outer side of the inner clamping plate 7. A blade 14 is installed between the outer clamping plate 12 and the inner clamping plate 7. Serrated grooves are provided on the outer walls of the opposite surfaces of the inner clamping plate 7 and the outer clamping plate 12, making the fixing of the blade 14 more firm and stable. And the outer clamping plate 12 and the inner clamping plate 7 clamp the blade 14 through a locking knob 13, facilitating the replacement of the blade 14. The two blades 14 on the cross beam 1 cut both sides of the film, making the width of the film consistent. After winding, it is more regular and stable, improving the film quality.
[0027] Furthermore, a support block 15 is fixedly arranged on the outer side wall of one end of the outer splint 12. The end of the support block 15 away from the outer splint 12 abuts against the guide bracket 16, and the side view of this end of the support block 15 is arc-shaped. The arc-shaped side view of this end of the support block 15 is used to reduce friction, making the sliding of the support block 15 smoother. The guide bracket 16 is movably installed at the bottom on the other side of the slider 3. When the air cylinder 5 pushes the blade 14 to move, the support block 15 slides along the guide bracket 16 to realize the rotation of the inner splint 7, thereby tilting the blade 14, lowering the cutting edge and realizing cutting.
[0028] The working principle of a width adjustment device for coiling a PVC film of the present utility model is as follows: both ends of the cross beam 1 are fixedly installed on a PVC film production device. The distance between the two blades 14 is adjusted by sliding the slider 3. After the adjustment is completed, the slider 3 is locked and fixed. When the air cylinder 5 pushes the push plate 6 to move outwards, after the support block 15 abuts against the guide bracket 16, it will slide along the inclined surface of the guide bracket 16. The inner splint 7 rotates under the action of the guide bracket 15, and the blade 14 installed between the inner splint 7 and the outer splint 12 tilts downwards, thereby lowering the cutting edge. When the film passes by, the two blades 14 cut both sides of the film, thereby adjusting the width of the film.
[0029] In addition, it should be noted that the above specific implementation manner is only an optimized solution of this patent. Any modification or improvement made by those skilled in the art based on the above conceptions is within the protection scope of this patent.
Claims
1. A width adjustment device for curling a PVC film, characterized in that: It includes a cross beam (1). Chute grooves (2) are provided at both ends of the cross beam (1). Sliders (3) are slidably installed in the chute grooves (2), and the sliders (3) are fixed by bolts. A bracket (4) is fixedly installed at the bottom of one side of the slider (3). A cylinder (5) is fixedly installed at the bottom of the bracket (4). A push plate (6) is fixedly provided at the output end of the cylinder (5). An inner clamping plate (7) is arranged outside the push plate (6). The inner clamping plate (7) is movably connected to the push plate (6) through a rotating shaft (8) installed on the back. The other end of the rotating shaft (8) penetrates through the push plate (6) and is fixedly connected to a baffle (10). A torsion spring (11) is sleeved on the rotating shaft (8). An outer clamping plate (12) is installed outside the inner clamping plate (7). A blade (14) is installed between the outer clamping plate (12) and the inner clamping plate (7), and the outer clamping plate (12) and the inner clamping plate (7) clamp the blade (14) through a locking knob (13). A support block (15) is fixedly provided on the outer wall of one end of the outer clamping plate (12). A guiding bracket (16) is movably installed at the bottom of the other side of the slider (3).
2. The width adjustment device for curling of a PVC film according to claim 1, characterized in that: A resisting plate (9) is provided at the bottom of the outer wall of the end of the push plate (6) away from the slider (3). A groove for accommodating the resisting plate (9) is provided at the bottom of the inner clamping plate (7).
3. The width adjustment device for curling a PVC film according to claim 1, characterized in that: One end of the torsion spring (11) is fixedly engaged with the push plate (6), and the other end of the torsion spring (11) is fixedly engaged with the baffle (10).
4. A width adjustment device for curling a PVC film according to claim 1, characterized in that: One end of the support block (15) away from the outer clamping plate (12) abuts against the guiding bracket (16), and the side view of this end of the support block (15) is arc-shaped.
5. A width adjustment device for curling a PVC film according to claim 4, wherein: The guiding bracket (16) is a plate-like structure with an overall downward inclination and a cross-section in an "L" shape, and the support block (15) abuts against the inclined surface of the guiding bracket (16).
6. The width adjustment device for curling of a PVC film according to claim 1, characterized in that: Jagged grooves are provided on the outer walls of the opposite surfaces of the inner clamping plate (7) and the outer clamping plate (12).