Teflon film calender

Abstract

The utility model relates to the technical field of calenders, in particular to a polytetrafluoroethylene film calender which comprises a workbench, a guide mechanism is fixedly connected to the middle of the upper end of the workbench, a vertical plate is fixedly connected to the left rear portion of the upper end of the workbench, and an unwinding roller is arranged on the upper portion of the front end of the vertical plate. A bearing mechanism is fixedly connected to the upper portion of the left end of the workbench, a fixing frame is fixedly connected to the right portion of the upper end of the workbench, a first connecting shaft is jointly and fixedly connected between the lower portion of the inner front wall and the lower portion of the inner rear wall of the fixing frame, and a first calendering roller is movably connected to the middle of the outer surface of the first connecting shaft; sliding grooves are formed in the upper portion of the inner front wall and the upper portion of the inner rear wall of the fixing frame. According to the polytetrafluoroethylene film calender disclosed by the utility model, a polytetrafluoroethylene film can be prevented from deviating, and the polytetrafluoroethylene film calender can be suitable for guiding polytetrafluoroethylene films with different thicknesses during calendering due to the fact that the distance between the first guide roller and the second guide roller is convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of calenders, in particular to a polytetrafluoroethylene film calender. Background Art

[0002] Polytetrafluoroethylene film, also known as Teflon film, is a film made of suspended polytetrafluoroethylene resin through molding, sintering, cooling into a blank, and then turning and calendering. It is commonly used in capacitor dielectrics, wire insulation, electrical instrument insulation, and dense gaskets. The polytetrafluoroethylene film calender is a device for calendering polytetrafluoroethylene film.

[0003] During the use of the existing polytetrafluoroethylene film calender, the polytetrafluoroethylene film lacks a corresponding guide mechanism before calendering, which easily causes the polytetrafluoroethylene film to deviate during the calendering process, thereby affecting the production quality of the polytetrafluoroethylene film. Therefore, we have launched a new polytetrafluoroethylene film calender. Utility Model Content

[0004] The main purpose of the utility model is to provide a polytetrafluoroethylene film calender, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism, and the lifting mechanism is a bottom end of the lifting mechanism.

[0007] Preferably, the guide mechanism includes a guide frame and a connecting strip, the front upper end and the rear upper end of the guide frame are both provided with connecting grooves, the upper front end and the upper rear end of the guide frame are both inserted and connected with a No. 1 locking screw, the upper front end and the upper rear end of the guide frame are movably connected to a No. 1 guide roller between the upper front wall and the upper rear wall of the guide frame through a movable shaft, and two connecting strips are provided, and a No. 2 guide roller is movably connected between the two connecting strips through a movable shaft.

[0008] Preferably, the lower end of the guide frame is fixedly connected to the workbench, the two connecting strips are respectively inserted and connected to the two connecting grooves, and the ends of the two No. 1 locking screws are respectively tightly fitted with the two connecting strips.

[0009] By adopting the above technical solution, the distance between the No. 1 guide roller and the No. 2 guide roller can be easily adjusted, which can be used for guiding polytetrafluoroethylene films of different thicknesses during calendering.

[0010] Preferably, the No. 1 guide roller and the No. 1 calendering roller are kept on the same horizontal line, and the No. 2 guide roller and the No. 1 guide roller are kept on the same vertical line.

[0011] By adopting the above technical solution, the polytetrafluoroethylene film can be prevented from deflecting.

[0012] Preferably, the supporting mechanism includes a fixed plate and a supporting frame, a slot is provided on the upper end of the fixed plate, a No. 2 locking screw is inserted and connected to the upper left end of the fixed plate, an insert plate is fixedly connected to the left lower end of the supporting frame, and a number of supporting rollers are movably connected inside the supporting frame.

[0013] Preferably, the right end of the fixing plate is fixedly connected to the workbench, the inserting plate is inserted into the slot, and the end of the No. 2 locking screw is tightly fitted with the inserting plate.

[0014] By adopting the above technical solution, the supporting frame can be quickly positioned and installed below the unwinding roller.

[0015] Preferably, the support frame is located below the unwinding roller, and the support frame does not contact the workbench surface.

[0016] By adopting the above technical solution: the unwound polytetrafluoroethylene film is supported by a number of supporting rollers in the supporting frame to prevent the unwound polytetrafluoroethylene film from directly contacting the workbench surface. The supporting rollers can isolate the film from the workbench surface, reduce the possibility of contamination of the film, and ensure the cleanliness of the film.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up a guide mechanism, the polytetrafluoroethylene film on the unwinding roller passes through the gap between the No. 1 guide roller and the No. 2 guide roller and then passes through the No. 1 calendering roller and the No. 2 calendering roller for calendering. The No. 1 guide roller and the No. 2 guide roller can always keep the polytetrafluoroethylene film on the same horizontal line as the No. 1 calendering roller and the No. 2 calendering roller, thus preventing the polytetrafluoroethylene film from shifting. In addition, since the gap between the No. 1 guide roller and the No. 2 guide roller can be easily adjusted, it can be used for guiding polytetrafluoroethylene films of different thicknesses during calendering.

[0019] 2. By setting up a supporting mechanism, the polytetrafluoroethylene film is easy to loosen during the unwinding process, causing the loose polytetrafluoroethylene film to easily come into contact with the dust on the workbench surface. By inserting the insert plate into the slot and locking it with the No. 2 locking screw, the support frame can be quickly positioned and installed under the unwinding roller. The loose polytetrafluoroethylene film is supported by several supporting rollers in the support frame to prevent the loose polytetrafluoroethylene film from directly contacting the workbench surface. The supporting rollers can isolate the film from the surface, reduce the possibility of contamination of the film, and ensure the cleanliness of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a polytetrafluoroethylene film calender of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the No. 1 calendering roller and the No. 2 calendering roller of a polytetrafluoroethylene film calendering machine of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of a guide mechanism of a polytetrafluoroethylene film calender of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of a supporting mechanism of a polytetrafluoroethylene film calender of the utility model.

[0024] In the figure: 1. Workbench; 2. Guide mechanism; 21. Guide frame; 22. Connecting strip; 23. Connecting slot; 24. Locking screw No. 1; 25. Guide roller No. 1; 26. Guide roller No. 2; 3. Vertical plate; 4. Unwinding roller; 5. Supporting mechanism; 51. Fixed plate; 52. Supporting frame; 53. Slot; 54. Locking screw No. 2; 55. Insert plate; 56. Supporting roller; 6. Fixed frame; 7. Connecting shaft No. 1; 8. Calendering roller No. 1; 9. Slide; 10. Hydraulic cylinder; 11. Connecting frame; 12. Connecting shaft No. 2; 13. Calendering roller No. 2. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] See also Figure 1-4 , the utility model provides a technical solution:

[0029] A polytetrafluoroethylene film calendering machine comprises a workbench 1, a guide mechanism 2 is fixedly connected to the middle part of the upper end of the workbench 1, a vertical plate 3 is fixedly connected to the left rear end of the upper end of the workbench 1, a reeling roller 4 is provided on the upper front end of the vertical plate 3, a supporting mechanism 5 is fixedly connected to the upper left end of the workbench 1, a fixed frame 6 is fixedly connected to the right part of the upper end of the workbench 1, a No. 1 connecting shaft 7 is fixedly connected between the lower part of the inner front wall and the lower part of the inner rear wall of the fixed frame 6, a No. 1 calendering roller 8 is movably connected to the middle part of the outer surface of the No. 1 connecting shaft 7, a slide groove 9 is provided on the upper part of the inner front wall and the upper part of the inner rear wall of the fixed frame 6, a hydraulic cylinder 10 is installed in the middle part of the upper end of the fixed frame 6, the output end of the hydraulic cylinder 10 is fixedly connected to the connecting frame 11, a No. 2 connecting shaft 12 is fixedly connected to the front and rear parts of the lower end of the connecting frame 11, the two ends of the No. 2 connecting shaft 12 are respectively slidably connected to the two slide grooves 9, and the No. 2 calendering roller 13 is movably connected to the middle part of the outer surface of the No. 2 connecting shaft 12.

[0030] In this embodiment, the guide mechanism 2 includes a guide frame 21 and a connecting bar 22. Connecting grooves 23 are provided at the front and rear ends of the guide frame 21. The upper front end and the upper rear end of the guide frame 21 are both interspersed with a No. 1 locking screw 24. The upper inner front wall and the upper inner rear wall of the guide frame 21 are movably connected to a No. 1 guide roller 25 through a movable shaft. Two connecting bars 22 are provided, and a No. 2 guide roller 26 is movably connected between the two connecting bars 22 through a movable shaft. The lower end of the guide frame 21 is fixedly connected to the workbench 1, and the two connecting bars 22 are respectively interspersed with the two connecting grooves 23. The ends of the two No. 1 locking screws 24 are respectively tightly fitted with the two connecting bars 22. The No. 1 guide roller 25 and the No. 1 calendering roller 8 are maintained on the same horizontal line, and the No. 2 guide roller 26 and the No. 1 guide roller 25 are maintained on the same vertical line.

[0031] Through the above scheme: the polytetrafluoroethylene film on the unwinding roller 4 passes through the gap between the No. 1 guide roller 25 and the No. 2 guide roller 26 and then is calendered by the No. 1 calendering roller 8 and the No. 2 calendering roller 13. The No. 1 guide roller 25 and the No. 2 guide roller 26 can make the polytetrafluoroethylene film always keep on the same horizontal line with the No. 1 calendering roller 8 and the No. 2 calendering roller 13, avoiding the polytetrafluoroethylene film from shifting. Moreover, since the gap between the No. 1 guide roller 25 and the No. 2 guide roller 26 can be easily adjusted, it can be suitable for guiding polytetrafluoroethylene films of different thicknesses during calendering.

[0032] In this embodiment, the supporting mechanism 5 includes a fixed plate 51 and a supporting frame 52. A slot 53 is provided at the upper end of the fixed plate 51. A No. 2 locking screw 54 is inserted and connected to the upper left end of the fixed plate 51. An insert plate 55 is fixedly connected to the left part of the lower end of the supporting frame 52. Several supporting rollers 56 are movably connected inside the supporting frame 52. The right end of the fixed plate 51 is fixedly connected to the workbench 1, and the insert plate 55 is inserted and connected to the slot 53. The end of the No. 2 locking screw 54 is tightly fitted with the insert plate 55. The supporting frame 52 is located below the unwinding roller 4, and the supporting frame 52 does not contact the surface of the workbench 1.

[0033] Through the above scheme: by inserting the insert plate 55 into the slot 53 and locking it through the No. 2 locking screw 54, the support frame 52 can be quickly positioned and installed under the unwinding roller 4, and the unwound polytetrafluoroethylene film is supported by a number of support rollers 56 in the support frame 52 to prevent the unwound polytetrafluoroethylene film from directly contacting the workbench 1. The support rollers 56 can isolate the film from the table surface, reduce the possibility of contamination of the film, and ensure the cleanliness of the film.

[0034] It should be noted that the present invention is a polytetrafluoroethylene film calendering machine. During use, the polytetrafluoroethylene film from the unwinding roller 4 is guided through the gap set by the No. 1 guide roller 25 and the No. 2 guide roller 26, and then sent between the No. 1 calendering roller 8 and the No. 2 calendering roller 13 for calendering treatment, ensuring that the film maintains the same horizontal position as the calendering rollers during the entire calendering process, effectively preventing the film from deflecting. In addition, since the spacing between the No. 1 guide roller 25 and the No. 2 guide roller 26 is adjustable, it can adapt to the guiding requirements of polytetrafluoroethylene films of different thicknesses during calendering. In order to solve the problem that the polytetrafluoroethylene film may become loose during the unwinding process, which may cause the film to contact the surface of the workbench 1 and be contaminated with dust, the insert plate 55 is inserted into the slot 53 and fastened with the No. 2 locking screw 54, so that the support frame 52 can be quickly positioned and installed under the unwinding roller 4. The support frame 52 is equipped with multiple support rollers 56, which can support the unwound film and prevent it from directly contacting the surface of the workbench 1. The setting of the support rollers 56 effectively isolates the film from the workbench 1, significantly reduces the risk of film contamination, and ensures the cleanliness of the film.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A polytetrafluoroethylene film calender, comprising a workbench (1), characterized in that: The middle of the upper end of the workbench (1) is fixedly connected to a guide mechanism (2), the left rear portion of the upper end of the workbench (1) is fixedly connected to a vertical plate (3), the upper front end of the vertical plate (3) is provided with a reeling roller (4), the upper left end of the workbench (1) is fixedly connected to a supporting mechanism (5), the right upper end of the workbench (1) is fixedly connected to a fixing frame (6), the lower part of the inner front wall and the lower part of the inner rear wall of the fixing frame (6) are fixedly connected to a No. 1 connecting shaft (7), and the middle of the outer surface of the No. 1 connecting shaft (7) is movably connected to a No. 1 pressing mechanism. The calendering roller (8) is provided with a slide groove (9) on the upper part of the inner front wall and the upper part of the inner rear wall of the fixed frame (6), a hydraulic cylinder (10) is installed in the middle part of the upper end of the fixed frame (6), the output end of the hydraulic cylinder (10) is fixedly connected to the connecting frame (11), the front part of the lower end and the rear part of the lower end of the connecting frame (11) are fixedly connected to the second connecting shaft (12), the two ends of the second connecting shaft (12) are respectively slidably connected to the two slide grooves (9), and the middle part of the outer surface of the second connecting shaft (12) is movably connected to the second calendering roller (13); The guide mechanism (2) includes a guide frame (21) and a connecting bar (22), the front upper portion and the rear upper portion of the guide frame (21) are both provided with a connecting groove (23), the upper front end and the upper rear end of the guide frame (21) are both interpenetratingly connected with a No. 1 locking screw (24), the upper front end and the upper rear end of the guide frame (21) are movably connected to a No. 1 guide roller (25) between the upper front inner wall and the upper rear inner wall of the guide frame (21) via a movable shaft, and two connecting bars (22) are provided, and a No. 2 guide roller (26) is movably connected between the two connecting bars (22) via a movable shaft.

2. The polytetrafluoroethylene film calender according to claim 1, characterized in that: The lower end of the guide frame (21) is fixedly connected to the workbench (1), the two connecting strips (22) are respectively connected to the two connecting grooves (23), and the ends of the two No. 1 locking screws (24) are respectively tightly fitted with the two connecting strips (22).

3. The polytetrafluoroethylene film calender according to claim 1, characterized in that: The No. 1 guide roller (25) and the No. 1 calendering roller (8) are maintained on the same horizontal line, and the No. 2 guide roller (26) and the No. 1 guide roller (25) are maintained on the same vertical line.

4. The polytetrafluoroethylene film calender according to claim 1, characterized in that: The supporting mechanism (5) comprises a fixed plate (51) and a supporting frame (52), wherein a slot (53) is provided at the upper end of the fixed plate (51), a No. 2 locking screw (54) is inserted and connected to the upper left end of the fixed plate (51), a plug plate (55) is fixedly connected to the left end of the lower end of the supporting frame (52), and a plurality of supporting rollers (56) are movably connected inside the supporting frame (52).

5. The polytetrafluoroethylene film calender according to claim 4, characterized in that: The right end of the fixing plate (51) is fixedly connected to the workbench (1), the inserting plate (55) is inserted and connected to the slot (53), and the end of the No. 2 locking screw (54) is tightly fitted with the inserting plate (55).

6. The polytetrafluoroethylene film calender according to claim 4, characterized in that: The support frame (52) is located below the unwinding roller (4), and the support frame (52) does not contact the surface of the workbench (1).

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