Polytetrafluoroethylene tape hot press setting device

Abstract

The utility model discloses a polytetrafluoroethylene material belt hot press setting device, including lathe, the top fixed connection of lathe has a pair of hot press frame, the right side of hot press frame is located the top fixed connection of lathe and has the cooling frame, the side of hot press frame and cooling frame apart from all fixed connections has a pair of guide frame, and the side of left side guide frame is located the top fixed connection of lathe and has the storage rack, and the side of right side guide frame is fixedly connected with the winding frame and compares with the hot press setting device of current, the utility model discloses the cooling treatment of the polytetrafluoroethylene material belt after hot press processing is provided, avoids the mutual adhesion of polytetrafluoroethylene material belt after winding, and enhances overall practicality.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing technology for polytetrafluoroethylene (PTFE) strips, specifically a hot pressing and shaping device for PTFE strips. Background Technology

[0002] PTFE products are made from polytetrafluoroethylene resin, cold-pressed and sintered using molds. They possess excellent corrosion resistance, good self-lubricating properties, and non-stick properties. Therefore, these products are resistant to almost all chemical media and exhibit wear resistance, pressure resistance, and a low coefficient of friction. They are widely used in many fields such as petroleum, chemical, metallurgical, machinery, transportation, pharmaceuticals, food, and power. In the production process of PTFE vinyl tapes, PTFE resin is pressed into compacts and sintered into simple products such as rods and tubes, which are then machined into tapes. The resulting PTFE vinyl tapes have a lower surface finish, lower crystallinity, and higher porosity; therefore, they are generally heat-pressed for shaping.

[0003] In existing hot pressing and shaping equipment, when hot pressing polytetrafluoroethylene (PTFE) strips, the PTFE strips are directly wound up after being hot pressed by the upper and lower pressure rollers. Since the PTFE strips are still in a softened state, they are prone to sticking together after being wound up, which affects subsequent processing.

[0004] Therefore, it is necessary to design a hot-pressing and shaping device for polytetrafluoroethylene strips to improve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model designs a hot-pressing and shaping device for polytetrafluoroethylene (PTFE) strips. This hot-pressing and shaping device aims to solve the technical problem that the lack of a cooling mechanism for PTFE strips after hot pressing in existing technologies leads to the PTFE strips sticking together after winding, affecting subsequent processing.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hot pressing and shaping device for polytetrafluoroethylene (PTFE) strip includes a machine tool. A pair of hot press frames are fixedly connected to the top of the machine tool. A cooling frame is fixedly connected to the right side of the hot press frames at the top of the machine tool. A pair of guide frames are fixedly connected to the side of the hot press frames away from the cooling frame. A storage rack is fixedly connected to the left side of the guide frame away from the hot press frames at the top of the machine tool. A winding frame is fixedly connected to the right side of the guide frame away from the cooling frame.

[0008] Preferably, a hot press roller is rotatably connected between the two sets of hot press frames. A motor is installed at one end of the hot press roller on the outside of the hot press frame. A movable groove is opened inside the hot press frame above the hot press roller. A set of limiting sliding grooves is opened on both sides of the inner wall of the movable groove. A hydraulic cylinder is installed at the top of the hot press frame. A sliding frame is fixedly connected below the hydraulic cylinder inside the movable groove.

[0009] Preferably, directional pulleys are rotatably connected to both sides of the sliding frame and to positions corresponding to the limiting slide groove. The sliding frame is slidably connected to the limiting slide groove via the directional pulleys. A second hot pressure roller is rotatably connected between the two sets of sliding frames. A second motor is installed at one end of the second hot pressure roller located on the outside of the sliding frame.

[0010] Preferably, the cooling rack has strip-shaped openings on both sides, a guide roller 1 is rotatably connected to the bottom of the strip-shaped opening, two sets of guide rollers 2 are rotatably connected inside the cooling rack, a set of cooling fans is installed at the top and bottom of the cooling rack, and a heat dissipation mesh is opened on the outer side of the cooling rack.

[0011] Preferably, guide rollers are rotatably connected between the guide frames, and limit rings are fixedly connected to both sides of the guide rollers.

[0012] Preferably, the top of the shelf has a placement slot, and a roll rod is placed inside the placement slot.

[0013] Preferably, a winding rod is rotatably connected inside the winding frame, and a motor is installed at one end of the winding rod on the outside of the winding frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. After the PTFE strip is hot-pressed, it enters the cooling rack through the guide roller at the bottom of the strip-shaped opening. The cooling rack blocks dust, and the cooling fan accelerates the cooling of the PTFE strip, which is in a softened state after hot pressing, to prevent the PTFE strip from sticking together after being wound up. The heat dissipation mesh window exhausts the hot air inside the cooling rack through the mesh holes.

[0016] 2. The hydraulic cylinder pushes the sliding frame to drive the second hot press roller to adjust the distance between it and the first hot press roller according to the hot pressing requirements of the polytetrafluoroethylene strip. The sliding frame is slidably connected to the limiting slide groove through the directional pulley to improve the smoothness of the height adjustment of the second hot press roller. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall three-dimensional structure of the polytetrafluoroethylene strip hot pressing and shaping device;

[0018] Figure 2A schematic diagram of the internal structure of the hot pressing and shaping device for polytetrafluoroethylene (PTFE) strips;

[0019] Figure 3 for Figure 2 A magnified structural diagram of region A in the middle.

[0020] In the diagram: 1. Machine tool; 2. Hot press frame; 201. Hot press roller one; 2011. Motor one; 202. Movable groove; 2021. Limiting slide groove; 203. Hydraulic cylinder; 204. Sliding frame; 2041. Directional pulley; 205. Hot press roller two; 2051. Motor two; 3. Cooling frame; 301. Strip-shaped opening; 302. Guide roller one; 303. Guide roller two; 304. Cooling fan; 305. Heat dissipation mesh window; 4. Guide frame; 401. Guide roller; 4011. Limiting ring; 5. Shelf; 501. Placement groove; 502. Winding rod; 6. Winding frame; 601. Winding rod; 602. Motor three. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] This utility model provides a hot pressing and shaping device for polytetrafluoroethylene (PTFE) strips. This hot pressing and shaping device aims to solve the technical problem that the lack of a cooling mechanism for PTFE strips after hot pressing in the prior art leads to the PTFE strips sticking together after winding, affecting subsequent processing.

[0024] Please see Figures 1-3This embodiment provides a hot pressing and shaping device for polytetrafluoroethylene (PTFE) strip, including a machine tool 1. A pair of hot press frames 2 are fixedly connected to the top of the machine tool 1. A hot press roller 201 is rotatably connected between the two sets of hot press frames 2. A motor 2011 is installed at one end of the hot press roller 201 on the outside of the hot press frame 2. An movable groove 202 is opened inside the hot press frame 2 above the hot press roller 201. A set of limiting slide grooves 2021 are opened on both sides of the inner wall of the movable groove 202. A hydraulic cylinder 203 is installed on the top of the hot press frame 2. A sliding frame 204 is fixedly connected below the hydraulic cylinder 203 inside the movable groove 202. Both sides of the sliding frame 204, corresponding to the positions of the limiting slide grooves 2021, are... A directional pulley 2041 is rotatably connected, and a sliding frame 204 is slidably connected to a limiting groove 2021 via the directional pulley 2041. A second hot press roller 205 is rotatably connected between the two sets of sliding frames 204. A second motor 2051 is installed at one end of the second hot press roller 205 located on the outside of the sliding frame 204. The left guide roller 401 conveys the polytetrafluoroethylene strip from the winding rod 502 to the first hot press roller 201. The hydraulic cylinder 203 pushes the sliding frame 204 to slidably connect to the limiting groove 2021 via the directional pulley 2041, thereby driving the second hot press roller 205 to provide hot pressing treatment to the polytetrafluoroethylene strip on the first hot press roller 201, compacting and flattening the polytetrafluoroethylene strip, removing surface defects, and improving density.

[0025] In this embodiment, please refer to Figure 1 and Figure 2 A cooling rack 3 is fixedly connected to the right side of the hot press frame 2, located on top of the machine tool 1. Both sides of the cooling rack 3 have strip-shaped openings 301. A guide roller 302 is rotatably connected to the bottom of the strip-shaped openings 301. Two sets of guide rollers 303 are rotatably connected inside the cooling rack 3. A cooling fan 304 is installed at both the top and bottom of the cooling rack 3. A heat dissipation mesh 305 is provided on the outer side of the cooling rack 3. After the PTFE strip undergoes hot pressing, it enters the cooling rack 3 through the guide roller 302 at the bottom of the strip-shaped openings 301. The cooling rack 3 blocks dust. The cooling fan 304 accelerates the cooling of the softened PTFE strip after hot pressing, preventing the PTFE strip from sticking together after winding. The guide rollers 303 transport the PTFE strip during the cooling process. The heat dissipation mesh 305 exhausts the hot air inside the cooling rack 3 through the mesh openings.

[0026] In this embodiment, please refer to Figure 1 and Figure 2 A pair of guide frames 4 are fixedly connected to the side of the hot press frame 2 that is far away from the cooling frame 3. A guide roller 401 is rotatably connected between the guide frames 4. Limiting rings 4011 are fixedly connected to both sides of the guide roller 401. The guide roller 401 limits and guides the polytetrafluoroethylene strip through the limiting rings 4011.

[0027] In this embodiment, please refer to Figure 1 and Figure 2 On the left guide frame 4, away from the hot press frame 2, a shelf 5 is fixedly connected to the top of the machine tool 1. A placement groove 501 is provided on the top of the shelf 5. A coil rod 502 is placed inside the placement groove 501 and placed on the shelf 5 through the placement groove 501.

[0028] In this embodiment, please refer to Figure 1 and Figure 2 A winding frame 6 is fixedly connected to the side of the right guide frame 4 away from the cooling frame 3. A winding rod 601 is rotatably connected inside the winding frame 6. A motor 602 is installed on one end of the winding rod 601 on the outside of the winding frame 6. The motor 602 drives the winding rod 601 to wind up the polytetrafluoroethylene strip after the heat pressing treatment.

[0029] In addition, it should be noted that the hot press roller, hydraulic cylinder 203 and motor are all existing technologies, and their internal working principles and operation procedures will not be described in detail here.

[0030] The working process of this utility model is as follows: First, the winding rod 502, which holds the polytetrafluoroethylene (PTFE) strip to be processed, is placed on the shelf 5 via the placement groove 501. The left guide roller 401 transports the PTFE strip from the winding rod 502 to the first hot press roller 201. The hydraulic cylinder 203 pushes the sliding frame 204, which slides through the directional pulley 2041 and the limiting groove 2021, thereby driving the second hot press roller 205 to provide hot pressing treatment to the PTFE strip on the first hot press roller 201. This process compacts and flattens the PTFE strip, removes surface defects, and improves its density. After the PTFE strip completes the hot pressing treatment, it passes through the left strip opening 301. The bottom guide roller 302 enters the interior of the cooling rack 3, which blocks dust. The cooling fan 304 accelerates the cooling of the softened PTFE strip after hot pressing, preventing the PTFE strip from sticking together after winding. The guide roller 303 transports the PTFE strip during the cooling process. The heat dissipation mesh 305 exhausts the hot air inside the cooling rack 3 through the mesh. After the cooling process is completed, the PTFE strip is conveyed to the right guide roller 401 through the bottom guide roller 302 of the right strip-shaped opening 301. The motor 602 drives the winding rod 601 to wind up the PTFE strip after the hot pressing process.

[0031] The entire operation process is simple and convenient. Compared with the existing hot pressing and shaping device, this utility model can provide cooling treatment for the PTFE material strip after hot pressing, so as to prevent the PTFE material strip from sticking together after winding, thus enhancing the overall practicality.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A hot pressing and shaping device for polytetrafluoroethylene strip, comprising a machine tool (1), characterized in that: A pair of hot press frames (2) are fixedly connected to the top of the machine tool (1). A cooling rack (3) is fixedly connected to the right side of the hot press frame (2) at the top of the machine tool (1). A pair of guide frames (4) are fixedly connected to the side of the hot press frame (2) away from the cooling rack (3). A shelf (5) is fixedly connected to the left side of the guide frame (4) away from the hot press frame (2) at the top of the machine tool (1). A winding rack (6) is fixedly connected to the right side of the guide frame (4) away from the cooling rack (3).

2. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 1, characterized in that: A hot press roller (201) is rotatably connected between the two sets of hot press frames (2). One end of the hot press roller (201) is located on the outside of the hot press frame (2) and a motor (2011) is installed. An movable groove (202) is provided inside the hot press frame (2) above the hot press roller (201). A set of limiting slide grooves (2021) is provided on both sides of the inner wall of the movable groove (202). A hydraulic cylinder (203) is installed on the top of the hot press frame (2). A sliding frame (204) is fixedly connected below the hydraulic cylinder (203) inside the movable groove (202).

3. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 2, characterized in that: On both sides of the sliding frame (204) and at positions corresponding to the limiting slide groove (2021), directional pulleys (2041) are rotatably connected. The sliding frame (204) is slidably connected to the limiting slide groove (2021) through the directional pulleys (2041). A second hot pressure roller (205) is rotatably connected between the two sets of sliding frames (204). One end of the second hot pressure roller (205) is located on the outside of the sliding frame (204) and a second motor (2051) is installed thereon.

4. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 1, characterized in that: The cooling rack (3) has strip-shaped openings (301) on both sides. A guide roller (302) is rotatably connected to the bottom of the strip-shaped opening (301). Two sets of guide rollers (303) are rotatably connected inside the cooling rack (3). A set of cooling fans (304) is installed at the top and bottom of the cooling rack (3). A heat dissipation mesh window (305) is opened on the outside of the cooling rack (3).

5. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 1, characterized in that: Guide rollers (401) are rotatably connected between the guide frames (4), and limit rings (4011) are fixedly connected to both sides of the guide rollers (401).

6. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 1, characterized in that: The shelf (5) has a placement slot (501) on its top, and a roll rod (502) is placed inside the placement slot (501).

7. The polytetrafluoroethylene strip hot pressing and shaping device according to claim 1, characterized in that: The winding frame (6) is rotatably connected to a winding rod (601), and a motor (602) is installed at one end of the winding rod (601) on the outside of the winding frame (6).

Images