Adjustable pulling roller for PVC processing

Abstract

This utility model discloses an adjustable traction roller for PVC processing. Applied in the PVC processing field, it includes a base plate, a fixing frame bolted to the top of the base plate, two fixing plates bolted to the inner wall of the fixing frame, and a screw rotatably connected between the inner wall of the fixing plate and the inner wall of the fixing frame. A fixing shell is bolted to the top of the fixing frame. This utility model achieves adjustable spacing by rotating a turntable to drive a worm gear, which in turn drives a screw to raise and lower a lifting plate. The raising and lowering of the lifting plate raises and lowers the passive traction roller, thus adapting to different production needs, improving practicality and applicability, and facilitating use. Furthermore, by moving a sliding cylinder to expose a fixing groove, and then removing both ends of the traction roller from the fixing groove, this utility model facilitates the installation and removal of the traction roller, reducing workload and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PVC processing, and in particular to an adjustable traction roller for PVC processing. Background Technology

[0002] PVC refers to polyvinyl chloride, which is the world's third largest synthetic polymer plastic produced. It is a polymer formed by the polymerization of vinyl chloride monomers under the action of initiators such as peroxides and azo compounds or under the action of light and heat according to the free radical polymerization mechanism. In the production process of PVC, traction rollers are used to pull the sheet raw materials.

[0003] A search of Chinese patents revealed publication number CN215437176U, which discloses a double-layer plastic film traction device. This device includes an installation frame, a roll roller, a feeding assembly, a serrated cutter, a sealing heating strip, a steering assembly, and a guide rail. The roll roller is positioned on top of the installation frame via a positioning seat. The feeding assembly, serrated cutter, and sealing heating strip are sequentially positioned below the roll roller from top to bottom, respectively completing the feeding, pre-segmentation, and single-sided sealing of the double-layer plastic film. The serrated cutter and sealing heating strip are positioned opposite each other and move synchronously relative to each other via a cylinder. The guide rail is located below the sealing heating strip, and the steering assembly is mounted on the guide rail via a sliding seat. The guide rails are positioned opposite each other and fixed to the installation frame. This traction device can realize a series of operations such as feeding, pre-segmentation, single-sided sealing, and steering conveying of double-layer plastic film. It exhibits stable performance, fully preparing for the next step of automated packaging. With a high degree of automation and low manual intervention, it can effectively reduce production costs and improve enterprise competitiveness.

[0004] Existing traction rollers cannot adjust the spacing; the spacing between traction rollers is generally fixed. However, due to differences in production batches, raw materials, and other factors, the spacing requirements for traction rollers vary, making them unsuitable for different production requirements. This results in poor applicability, inconvenience in use, and difficulty in assembling and disassembling traction rollers. Generally, traction rollers are fixed with multiple bolts, requiring tools for assembly and disassembly, which is cumbersome, increases workload, and reduces work efficiency. To address these issues, we propose an adjustable traction roller for PVC processing. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable traction roller for PVC processing, which has the advantages of adjustable spacing and easy assembly and disassembly.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable traction roller for PVC processing, comprising a base plate, a fixing frame bolted to the top of the base plate, two fixing plates bolted to the inner wall of the fixing frame, a screw rotatably sleeved between the inner wall of the fixing plate and the inner wall of the fixing frame, a fixing shell bolted to the top of the fixing frame, a worm gear rotatably sleeved between the inner walls of the fixing shell, two worm wheels meshing on the surface of the worm gear, and the axis of the worm wheels being fixedly sleeved with the top of the screw, a lifting plate threadedly connected between the surfaces of the screw, and two transmission plates bolted to the bottom of the lifting plate.

[0007] By adopting the above technical solution, the worm gear drives the worm wheel to rotate by rotating the turntable. The rotation of the worm wheel drives the screw to lift the lifting plate, and the lifting plate lifts the passive traction roller. This method can achieve the purpose of adjusting the spacing, can be adapted to different production needs, improves practicality and applicability, and is convenient to use.

[0008] The present invention is further configured such that: a rotating shaft is rotatably sleeved on the inner wall of both the transmission plate and the fixed frame; a sliding cylinder is slidably sleeved on the surface of the rotating shaft; a limit ring is threadedly connected to the surface of the rotating shaft; a spring is provided between the limit ring and the sliding cylinder, and the spring is sleeved on the surface of the rotating shaft; a fixing groove is opened on the surface of the rotating shaft; an active traction roller and a passive traction roller are respectively locked between the two fixing grooves; and a drive mechanism is provided at one end of the rotating shaft located at the bottom right side.

[0009] By adopting the above technical solution, the traction roller can be easily installed and removed by moving the slide cylinder to expose the fixed groove, and then removing both ends of the traction roller from the fixed groove, thereby reducing the workload and improving work efficiency.

[0010] The present invention is further configured such that: the driving mechanism includes a motor, the motor is bolted to the inner wall of the fixed frame, and a pulley is fixedly sleeved on both the output end of the motor and one end of the rotating shaft, and a transmission belt is connected between the two pulleys.

[0011] By adopting the above technical solution, a drive mechanism is set up so that the motor rotates and drives the belt pulley to drive the transmission belt pulley, the transmission belt rotates and drives another belt pulley to drive the shaft to rotate, and the shaft rotates and drives the active traction roller to rotate, which facilitates traction.

[0012] The present invention is further configured such that a turntable is fixedly sleeved at one end of the worm gear.

[0013] By adopting the above technical solution, a turntable is set up to facilitate the rotation of the worm gear.

[0014] The present invention is further configured such that: two support plates are bolted between the inner walls of the fixed shell, and the support plates are rotatably sleeved with the surface of the worm gear.

[0015] By adopting the above technical solution, the worm gear is fixed by setting a support plate, thereby improving stability.

[0016] The present invention is further provided that the surface of the slide tube is provided with anti-slip texture.

[0017] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0018] The present invention is further configured such that a fixing nut is threaded onto the surface of the rotating shaft.

[0019] By adopting the above technical solution, the limiting ring is fixed by setting a fixing nut, thereby improving stability.

[0020] The present invention is further configured such that the surface of the fixing frame is printed with scale lines.

[0021] By adopting the above technical solution, the spacing can be easily adjusted by setting scale lines.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model achieves the purpose of adjusting the spacing by rotating the turntable to make the worm gear drive the worm wheel to rotate, the rotation of the worm wheel causes the screw to drive the lifting plate to rise and fall, and the rise and fall of the lifting plate causes the passive traction roller to rise and fall. It can be adapted to different production needs, improves practicality and applicability, and is convenient to use.

[0024] 2. This utility model achieves the purpose of facilitating the installation and removal of the traction roller by moving the slide cylinder, exposing the fixed groove, and then removing both ends of the traction roller from the fixed groove, thereby reducing the workload and improving work efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural view of the present invention;

[0026] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 3 This is a partial three-dimensional cross-sectional view of the structure of this utility model;

[0028] Figure 4 This is a partial three-dimensional cross-sectional view of the structure of this utility model;

[0029] Figure 5 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0030] Reference numerals: 1. Base plate; 2. Fixing frame; 3. Fixing plate; 4. Screw; 5. Fixing shell; 6. Worm gear; 7. Worm wheel; 8. Lifting plate; 9. Transmission plate; 10. Rotating shaft; 11. Slide cylinder; 12. Limiting ring; 13. Spring; 14. Fixing groove; 15. Active traction roller; 16. Passive traction roller; 17. Drive mechanism; 18. Motor; 19. Pulley; 20. Transmission belt; 21. Turntable; 22. Support plate; 23. Anti-slip texture; 24. Fixing nut; 25. Scale line. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1:

[0033] refer to Figure 1 , Figure 2 and Figure 3 An adjustable traction roller for PVC processing includes a base plate 1, a fixed frame 2 bolted to the top of the base plate 1, two fixed plates 3 bolted to the inner wall of the fixed frame 2, a screw 4 rotatably sleeved between the inner wall of the fixed plate 3 and the inner wall of the fixed frame 2, a fixed shell 5 bolted to the top of the fixed frame 2, a worm gear 6 rotatably sleeved between the inner walls of the fixed shell 5, two worm wheels 7 meshing on the surface of the worm gear 6, and the axis of the worm wheels 7 being fixedly sleeved with the top of the screw 4, a lifting plate 8 threaded between the surfaces of the screw 4, and two transmission plates 9 bolted to the bottom of the lifting plate 8. By rotating a turntable 21, the worm gear 6 drives the worm wheels 7 to rotate, the rotation of the worm wheels 7 causes the screw 4 to drive the lifting plate 8 to rise and fall, and the rising and falling of the lifting plate 8 causes the passive traction roller 16 to rise and fall. This method can achieve the purpose of adjusting the spacing, can be adapted to different production needs, improves practicality and applicability, and is convenient to use.

[0034] refer to Figure 1 , Figure 2 and Figure 3 One end of the worm gear 6 is fixedly sleeved with a turntable 21, which facilitates the rotation of the worm gear 6.

[0035] refer to Figure 2 and Figure 3 Two support plates 22 are bolted between the inner walls of the fixed shell 5, and the support plates 22 are rotatably sleeved with the surface of the worm 6. By setting the support plates 22, the worm 6 is fixed and the stability is improved.

[0036] refer to Figure 1 The surface of the fixing frame 2 is printed with scale lines 25, which facilitates the adjustment of the spacing.

[0037] Example 2:

[0038] refer to Figure 2 , Figure 4 and Figure 5 The inner walls of the transmission plate 9 and the fixed frame 2 are both rotatably sleeved with a rotating shaft 10. A slide cylinder 11 is slidably sleeved on the surface of the rotating shaft 10. A limit ring 12 is threadedly connected to the surface of the rotating shaft 10. A spring 13 is provided between the limit ring 12 and the slide cylinder 11, and the spring 13 is sleeved on the surface of the rotating shaft 10. A fixing groove 14 is opened on the surface of the rotating shaft 10. An active traction roller 15 and a passive traction roller 16 are respectively locked between the two fixing grooves 14. A drive mechanism 17 is provided at one end of the rotating shaft 10 located at the bottom right side. By moving the slide cylinder 11, the slide cylinder 11 moves to expose the fixing groove 14. Then, the two ends of the traction roller are removed from the fixing groove 14. This method can facilitate the installation and removal of the traction roller, reduce the workload, and improve the work efficiency.

[0039] refer to Figure 2 The drive mechanism 17 includes a motor 18, which is bolted to the inner wall of the fixed frame 2. Both the output end of the motor 18 and one end of the rotating shaft 10 are fixedly sleeved with pulleys 19, and a transmission belt 20 is connected between the two pulleys 19. By setting the drive mechanism 17, the motor 18 rotates and drives the pulleys 19 to rotate the transmission belt 20. The rotation of the transmission belt 20 drives the other pulley 19 to rotate the rotating shaft 10. The rotation of the rotating shaft 10 drives the active traction roller 15 to rotate, which facilitates traction.

[0040] refer to Figure 5 The surface of the slide cylinder 11 is provided with anti-slip texture 23. By setting the anti-slip texture 23, the hand slips and the operation is facilitated.

[0041] refer to Figure 4 and Figure 5 The rotating shaft 10 has a threaded connection to a fixing nut 24. By setting the fixing nut 24, the limiting ring 12 is fixed, thereby improving stability.

[0042] Brief description of the operation: Rotating turntable 21 drives worm gear 6 to rotate, which in turn drives worm wheel 7 to rotate, which in turn drives screw 4 to rotate, causing lifting plate 8 to rise and fall. Lifting plate 8 raises and falls, causing transmission plate 9 to rise and fall, which in turn drives rotating shaft 10 to raise and fall passive traction roller 16. The rise and fall of passive traction roller 16 changes the distance between it and active traction roller 15, thereby achieving the purpose of adjusting the distance. Moving slide cylinder 11 exposes the fixed groove 14, allowing the... The passive traction roller 16 or the active traction roller 15 is removed from the fixed groove 14 to complete the disassembly. During installation, the two ends of the passive traction roller 16 or the active traction roller 15 are placed in the fixed groove 14, and then the slide cylinder 11 is released. The slide cylinder 11 is reset under the action of the spring 13. The reset slide cylinder 11 covers the fixed groove 14, thereby fixing the two ends of the traction roller in the fixed groove 14 to complete the installation, thus achieving the purpose of easy assembly and disassembly. By rotating the limiting ring 12 to move the limiting ring 12, the preload of the spring 13 can be adjusted.

[0043] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An adjustable puller roller for PVC processing comprising a base plate (1), characterized in that, A fixing frame (2) is bolted to the top of the base plate (1). Two fixing plates (3) are bolted to the inner wall of the fixing frame (2). A screw (4) is rotatably sleeved between the inner wall of the fixing plate (3) and the inner wall of the fixing frame (2). A fixing shell (5) is bolted to the top of the fixing frame (2). A worm gear (6) is rotatably sleeved between the inner walls of the fixing shell (5). Two worm wheels (7) mesh with the surface of the worm gear (6), and the axis of the worm wheel (7) is fixedly sleeved with the top of the screw (4). A lifting plate (8) is threaded between the surfaces of the screw (4). Two transmission plates (9) are bolted to the bottom of the lifting plate (8).

2. An adjustable puller roller for PVC processing according to claim 1, characterized in that, The inner walls of the transmission plate (9) and the fixed frame (2) are rotatably sleeved with a rotating shaft (10). A slide cylinder (11) is slidably sleeved on the surface of the rotating shaft (10). A limit ring (12) is threadedly connected to the surface of the rotating shaft (10). A spring (13) is provided between the limit ring (12) and the slide cylinder (11), and the spring (13) is sleeved on the surface of the rotating shaft (10). A fixing groove (14) is opened on the surface of the rotating shaft (10). An active traction roller (15) and a passive traction roller (16) are respectively locked between the two fixing grooves (14). A drive mechanism (17) is provided at one end of the rotating shaft (10) located at the bottom right side.

3. An adjustable puller roller for PVC processing according to claim 2, characterized in that, The drive mechanism (17) includes a motor (18), which is bolted to the inner wall of the fixed frame (2). The output end of the motor (18) and one end of the rotating shaft (10) are both fixedly sleeved with pulleys (19), and a transmission belt (20) is connected between the two pulleys (19).

4. The adjustable puller roller for PVC processing according to claim 1, characterized in that, One end of the worm (6) is fixedly sleeved with a turntable (21).

5. The adjustable puller roller for PVC processing according to claim 1, characterized in that, Two support plates (22) are bolted between the inner walls of the fixed shell (5), and the support plates (22) are rotatably sleeved with the surface of the worm (6).

6. The adjustable puller roller for PVC processing according to claim 2, characterized in that, The surface of the slide (11) is provided with anti-slip texture (23).

7. The adjustable puller roller for PVC processing according to claim 2, characterized in that, The rotating shaft (10) is threaded with a fixing nut (24).

8. The adjustable pull roll for processing PVC of claim 1, wherein, The surface of the fixing frame (2) is printed with scale lines (25).

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