A winding device for polytetrafluoroethylene film

Abstract

The utility model relates to the technical field of polytetrafluoroethylene film processing equipment, concretely relates to a kind of polytetrafluoroethylene film winding device, base and be located on the winding mechanism and compression roller of base, winding mechanism is used to be wound on reel with tetrafluoroethylene film, wherein, compression roller compacts tetrafluoroethylene film on reel when winding mechanism working state;Adjusting mechanism is located on base, the compression roller and reel are in axis parallel state, adjusting mechanism controls compression roller to move along the direction perpendicular to reel axis;The utility model is by designing a kind of structure optimized polytetrafluoroethylene film winding device, to solve the problem such as not close, interlayer bubble, wrinkle in film winding process, improve product quality stability.

Description

Technical Field

[0001] This utility model relates to the technical field of polytetrafluoroethylene (PTFE) film processing equipment, specifically to a winding device for PTFE film. Background Technology

[0002] Polytetrafluoroethylene (PTFE) film is widely used in high-end fields such as electronics and aerospace due to its excellent resistance to high and low temperatures, chemical stability, and insulation properties. In the production process of PTFE film, the winding process directly affects the final quality of the film. Currently, during the winding process of existing polytetrafluoroethylene film winding devices, the film cannot be tightly adhered to the roll surface, resulting in interlayer bubbles, wrinkles, or loose winding. Therefore, there is an urgent need to develop a winding device for polytetrafluoroethylene (PTFE) films to address this issue. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a winding device for polytetrafluoroethylene film to solve the technical problem that the film cannot be tightly adhered to the surface of the roll during the winding process of existing polytetrafluoroethylene film winding devices, resulting in interlayer bubbles, wrinkles or loose winding.

[0004] To achieve the above objectives, this utility model provides a winding device for polytetrafluoroethylene film, comprising: The base and the winding mechanism and pressure rollers disposed on the base, wherein the winding mechanism is used to wind the tetrafluoroethylene film onto the roll, and the pressure rollers press the tetrafluoroethylene film onto the roll when the winding mechanism is in operation. An adjustment mechanism is provided on the base, wherein the pressure roller is parallel to the axis of the drum, and the adjustment mechanism controls the pressure roller to move in a direction perpendicular to the axis of the drum.

[0005] Preferably, the winding mechanism includes: A first upright frame is provided on the base, and a first bearing seat is fixedly provided on the first upright frame; An air shaft is rotatably mounted on a first bearing housing, and a geared motor is fixedly mounted on the first bearing housing, wherein the output shaft of the geared motor is connected to the air shaft.

[0006] Preferably, the end of the air shaft away from the first bearing seat is a free end, one end of the pressure roller is mounted on the adjustment mechanism, and the other end of the pressure roller is a free end; The free end of the pressure roller faces away from the free end of the air expansion shaft. The axis of the air expansion shaft and the axis of the pressure roller are coplanar to form an adjusting extrusion surface, and there is a partial overlap between the two in the adjusting extrusion surface.

[0007] Preferably, the adjustment structure includes a second upright fixed to the base and a second bearing seat slidably disposed on the second upright; One end of the pressure roller is rotatably mounted on the second bearing seat. A linear driver is fixed on the first upright. The output end of the linear driver is connected to the second bearing seat to control the pressure roller to move along the direction perpendicular to the axis of the drum.

[0008] Preferably, the second upright includes a horizontal frame fixed to the base and two uprights symmetrically distributed at both ends of the horizontal frame; Each of the two columns is equipped with a guide rail, which is symmetrically distributed on both sides of the adjusting extrusion surface, and the extension direction of the guide rail is parallel to the adjusting extrusion surface. The guide rail is provided with a connecting frame, which is connected to the output end of the linear driver. The second bearing seat is mounted on the connecting frame, and sliders are distributed on both sides of the connecting frame, which are slidably connected to the guide rail through the sliders.

[0009] Preferably, the connecting frame has a groove from top to bottom, and guide rods are symmetrically arranged in the groove. The second bearing seat is embedded in the groove. The top end of the guide rod passes through the second bearing seat and is slidably connected to it. A nut is provided at the top end of the guide rod to form a limit. A spring is sleeved on the guide rod, and the two ends of the spring are respectively connected to the inner wall of the groove and the bottom of the second bearing seat.

[0010] Preferably, the bottom of the connecting frame is provided with a pull rod type linear displacement sensor, and the receiving end of the pull rod type linear displacement sensor is connected to the second bearing seat.

[0011] Preferably, the linear actuator is a single-axis cylinder.

[0012] Preferably, the base includes two short square steel bars and a long square steel bar. The two long square steel bars are parallel to each other, and the two short square steel bars are perpendicular to the long square steel bars and are respectively connected to the two ends of the two long square steel bars, forming a rectangular frame structure together with the long square steel bars. The winding mechanism and the adjusting mechanism are distributed on the outside of the two short square steel bars.

[0013] Preferably, the pressure roller is a cylindrical roller body, and the surface of the pressure roller is covered with a fluororubber layer.

[0014] The beneficial effects of this utility model are: 1. This utility model solves problems such as poor adhesion, interlayer bubbles, and wrinkles during the film winding process by designing a structurally optimized polytetrafluoroethylene film winding device, thereby improving the stability of product quality. 2. The surface of the pressure roller is coated with a fluororubber layer, which has good compatibility with PTFE film, eliminating the risk of adhesion and scratches. Furthermore, fluororubber is resistant to aging and wear, resulting in a long service life. 3. The spring structure inside the connecting frame provides elastic buffer for the pressure roller, which can adapt to the fluctuation of film thickness and prevent the film from deforming or breaking due to excessive instantaneous pressure; 4. The pull rod type linear displacement sensor monitors the displacement of the pressure roller in real time. Combined with the precise drive of the single-axis cylinder, the position of the pressure roller can be quickly adjusted according to different film specifications, making it highly adaptable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a front view of the adjustment mechanism and pressure roller of this utility model.

[0017] The numbers on the map are: 1-Base; 11-Short square steel; 12-Long square steel; 2-Winding mechanism; 21-First upright; 22-First bearing seat; 23-Air shaft; 24-Gear motor; 3-Pressure roller; 4-Adjusting mechanism; 41-Second upright; 411-Column; 412-Horizontal frame; 413-Guide rail; 414-Slider; 42-Second bearing seat; 43-Linear actuator; 44-Connecting frame; 441-Guide rod; 442-Spring; 45-Pull rod type linear displacement sensor; 5-Drum. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] This utility model proposes a winding device for polytetrafluoroethylene film, such as... Figures 1 to 4 As shown, it includes a base 1, a winding mechanism 2, a pressure roller 3, and an adjusting mechanism 4, specifically: The base 1 is a rectangular frame structure welded from two short square steel bars 11 and two long square steel bars 12. The two long square steel bars 12 are parallel and extend along their length, and the two short square steel bars 11 are perpendicularly connected to both ends of the long square steel bars 12. The winding mechanism 2 and the adjusting mechanism 4 are respectively installed on the outside of the two short square steel bars 11. The mounting holes on the frame are used to fix the first upright 21 and the second upright 41. The winding mechanism 2 is used to wind the PTFE film onto the roll 5. It includes a first upright 21, a first bearing seat 22, an air shaft 23, and a geared motor 24. The first upright 21 is fixed to the short square steel 11 of the base 1 by bolts. The first bearing seat 22 is welded or bolted to the first upright 21. The air shaft 23 is rotatably mounted in the first bearing seat 22 by bearings and is used to install the PTFE film roll 5 to be wound. The geared motor 24 is fixed to the first bearing seat 22 by bolts. Its output shaft is connected to the air shaft 23 by a coupling and drives the air shaft 23 to rotate to realize the winding action. The free end of the air shaft 23 is used for loading and unloading the film roll 5.

[0021] When the winding mechanism 2 is working, the pressure roller 3 presses the PTFE film onto the roll 5 to ensure tight winding. The pressure roller 3 is a cylindrical roller body with a fluororubber layer on the surface. The fluororubber layer has a thickness of 0.5-2mm and has low adhesion and abrasion resistance compatible with PTFE film, avoiding scratches or adhesion of the film.

[0022] One end of the pressure roller 3 is mounted on the adjusting mechanism 4, and the other end is a free end; the free end of the pressure roller 3 faces away from the free end of the air expansion shaft 23. The axis of the air expansion shaft 23 and the axis of the pressure roller 3 are coplanar to form an adjusting extrusion surface, and there is a partial overlap between the two in the adjusting extrusion surface, which ensures effective compaction of the film.

[0023] The adjusting mechanism 4 is used to control the movement of the pressure roller 3 along the vertical axis of the drum 5 to adapt to different winding conditions. It includes a second upright 41, a second bearing seat 42, and a linear actuator 43. The second upright 41 is fixed on the short square steel 11 of the base 1 and includes a crossbeam 412 and two columns 411 symmetrically distributed at both ends of the crossbeam 412. The second bearing seat 42 is slidably mounted on the second upright 41, and one end of the pressure roller 3 is rotatably mounted on the second bearing seat 42. In this embodiment, the linear actuator 43 is a single-axis cylinder, fixed on the first upright 21, and its output end is connected to the second bearing seat 42 for transmission, controlling the movement of the pressure roller 3 along the vertical axis of the drum 5.

[0024] Furthermore, each of the two columns 411 is provided with a guide rail 413, which is symmetrically distributed on both sides of the adjusting extrusion surface and extends in a direction parallel to the adjusting extrusion surface. A connecting frame 44 is provided on the guide rail 413, which is connected to the output end of the linear actuator 43. Slider 414 is provided on both sides of the connecting frame 44, and the slider 414 is slidably connected to the guide rail 413 through the slider 414 to achieve stable sliding.

[0025] The connecting frame 44 has grooves from top to bottom, and guide rods 441 are symmetrically welded in the grooves. The second bearing seat 42 is embedded in the grooves. The top end of the guide rod 441 passes through the second bearing seat 42 and is slidably connected to it. The top end is screwed into a nut to form an axial limit. A spring 442 is sleeved on the guide rod 441. The two ends of the spring 442 abut against the inner wall of the groove and the bottom of the second bearing seat 42, respectively, to provide elastic buffer for the pressure roller 3. A pull rod type linear displacement sensor 45 (preferably Milang MPS-100mm but not limited to) is installed at the bottom of the connecting frame 44 through a bracket. The pull rod of the sensor is connected to the second bearing seat 42 to detect the displacement of the pressure roller 3 in real time.

[0026] Work process: A geared motor 24 drives the air shaft 23 to rotate, and the PTFE film is wound onto the roll 5 of the air shaft 23. Simultaneously, a single-axis cylinder drives the pressure roller 3 to move towards the air shaft 23, and the fluororubber layer on the surface of the pressure roller 3 presses the film firmly onto the surface of the roll 5. A pull-rod type linear displacement sensor 45 provides real-time feedback on the displacement of the pressure roller 3, allowing the operator to adjust the extension of the single-axis cylinder based on the detection data, precisely controlling the distance between the pressure roller 3 and the roll 5. When the film thickness fluctuates, the spring 442 inside the connecting frame 44 adaptively buffers the pressure through compression or extension, preventing the film from deforming due to excessive instantaneous pressure. After winding is complete, the air shaft 23 releases air, allowing for quick unwinding of the wound film roll 5, completing one winding process.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A winding device for polytetrafluoroethylene film, characterized in that, include: The base and the winding mechanism and pressure rollers disposed on the base, wherein the winding mechanism is used to wind the tetrafluoroethylene film onto the roll, and the pressure rollers press the tetrafluoroethylene film onto the roll when the winding mechanism is in operation. An adjustment mechanism is provided on the base, wherein the pressure roller is parallel to the axis of the drum, and the adjustment mechanism controls the pressure roller to move in a direction perpendicular to the axis of the drum.

2. The winding device for a polytetrafluoroethylene film according to claim 1, characterized by The winding mechanism includes: A first upright frame is provided on the base, and a first bearing seat is fixedly provided on the first upright frame; An air shaft is rotatably mounted on a first bearing housing, and a geared motor is fixedly mounted on the first bearing housing, wherein the output shaft of the geared motor is connected to the air shaft.

3. The winding device for polytetrafluoroethylene film according to claim 2, characterized in that, The end of the air shaft away from the first bearing seat is a free end; one end of the pressure roller is mounted on the adjustment mechanism; and the other end of the pressure roller is a free end. The free end of the pressure roller faces away from the free end of the air expansion shaft. The axis of the air expansion shaft and the axis of the pressure roller are coplanar to form an adjusting extrusion surface, and there is a partial overlap between the two in the adjusting extrusion surface.

4. The winding device for a polytetrafluoroethylene film according to claim 2, characterized by The adjustment structure includes a second upright fixed to the base and a second bearing seat slidably disposed on the second upright; One end of the pressure roller is rotatably mounted on the second bearing seat. A linear driver is fixed on the first upright. The output end of the linear driver is connected to the second bearing seat to control the pressure roller to move along the direction perpendicular to the axis of the drum.

5. The winding device for a polytetrafluoroethylene film according to claim 4, characterized by The second upright includes a horizontal frame fixed to the base, and two uprights symmetrically distributed at both ends of the horizontal frame; Each of the two columns is equipped with a guide rail, which is symmetrically distributed on both sides of the adjusting extrusion surface, and the extension direction of the guide rail is parallel to the adjusting extrusion surface. The guide rail is provided with a connecting frame, which is connected to the output end of the linear driver. The second bearing seat is mounted on the connecting frame, and sliders are distributed on both sides of the connecting frame, which are slidably connected to the guide rail through the sliders.

6. The winding device for a polytetrafluoroethylene film according to claim 5, wherein The connecting frame has a groove from top to bottom, and guide rods are symmetrically arranged in the groove. The second bearing seat is embedded in the groove. The top end of the guide rod passes through the second bearing seat and is slidably connected to it. The top end of the guide rod is provided with a nut to form a limit. A spring is sleeved on the guide rod, and the two ends of the spring are respectively connected to the inner wall of the groove and the bottom of the second bearing seat.

7. The winding device for a polytetrafluoroethylene film according to claim 6, wherein The bottom of the connecting frame is equipped with a pull rod type linear displacement sensor, and the receiving end of the pull rod type linear displacement sensor is connected to the second bearing seat.

8. The winding device for a polytetrafluoroethylene film according to claim 4, characterized by The linear actuator uses a single-axis cylinder.

9. The winding device for a polytetrafluoroethylene film according to claim 1, wherein The base includes two short square steel bars and one long square steel bar. The two long square steel bars are parallel to each other, and the two short square steel bars are perpendicular to the long square steel bars and are respectively connected to the two ends of the two long square steel bars. Together with the long square steel bars, they form a rectangular frame structure. The winding mechanism and the adjustment mechanism are distributed on the outside of the two short square steel bars.

10. The winding device for a polytetrafluoroethylene film according to claim 1, characterized by The pressure roller is a cylindrical roller body, and the surface of the pressure roller is covered with a fluororubber layer.

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