A hot pressing equipment for polytetrafluoroethylene sheets

Abstract

This utility model discloses a hot-pressing equipment for polytetrafluoroethylene (PTFE) sheets, relating to the field of PTFE sheet processing technology. It includes a processing table and an exhaust assembly. The processing table is an integrated structure with a protective cover installed on its upper surface. The exhaust assembly is located on the right side of the protective cover and includes a waste gas treatment box, an exhaust pipe, a fixed partition, an exhaust fan, a dust filter, a sealing door, a PTFE filter screen, a multi-stage composite filter element, a PTFE deep filter felt, and an activated carbon adsorption layer. The waste gas treatment box is located on the right side of the protective cover, and an exhaust pipe is installed on its upper side, with the upper end of the exhaust pipe penetrating the upper right end of the protective cover and extending into the interior of the protective cover. This hot-pressing equipment for PTFE sheets, through the exhaust assembly, enables the device to fully treat waste gas, preventing waste gas from affecting the production environment during the hot-pressing process. The limiting assembly allows the device to fix and limit the raw material sheet, improving the quality of hot pressing.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE) sheet processing technology, specifically to a hot pressing processing equipment for PTFE sheets. Background Technology

[0002] Polytetrafluoroethylene (PTFE) sheets, also known as PTFE sheets, Teflon sheets, or polytetrafluoroethylene sheets, are high-performance engineering plastic sheets made of PTFE resin. They possess excellent chemical stability and temperature resistance. In the production and processing of PTFE sheets, a hot-pressing process is needed to melt and compact the PTFE resin under high temperature and pressure, ensuring material densification and structural stability. However, current hot-pressing equipment still has the following shortcomings:

[0003] For example, patent document CN221912416U discloses a hot pressing device for sheet metal processing. This hot pressing device for sheet metal processing, through reasonable structural design and functional configuration, can achieve high efficiency, precision and stability in the sheet metal processing process, improving production efficiency and product quality. However, it generates a large amount of waste gas during the hot pressing process. If the waste gas is not treated in time, it will seriously affect the processing environment and easily cause harm to the operator's health. Summary of the Invention

[0004] The purpose of this invention is to provide a hot pressing equipment for polytetrafluoroethylene (PTFE) sheets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polytetrafluoroethylene (PTFE) sheet hot pressing processing equipment, comprising a processing table and an exhaust assembly. The processing table is an integrated structure, and a protective cover is installed on the upper surface of the processing table. The exhaust assembly is located on the right side of the protective cover and includes an exhaust gas treatment box, an exhaust pipe, a fixed partition, an exhaust fan, a dustproof net, a sealing door, a PTFE filter, a multi-stage composite filter element, a PTFE deep filter felt, and an activated carbon adsorption layer. The exhaust gas treatment box is located on the right side of the protective cover, and an exhaust pipe is installed on the upper side of the exhaust gas treatment box. The upper end of the exhaust pipe penetrates the upper right end of the protective cover and extends into the interior of the protective cover. A fixed partition is installed at the lower end of the interior of the exhaust gas treatment box, and an exhaust fan is provided on the surface of the fixed partition.

[0006] Furthermore, a dustproof net is provided at the lower right side of the exhaust gas treatment box, and a sealing door is connected to the upper right side of the exhaust gas treatment box via a hinge.

[0007] Furthermore, a PTFE filter screen is installed at the upper part of the exhaust gas treatment box, and a multi-stage composite filter element is provided inside the exhaust gas treatment box.

[0008] Furthermore, the upper surface of the multi-stage composite filter element is provided with a PTFE deep filter felt, and an activated carbon adsorption layer is installed below the multi-stage composite filter element.

[0009] Furthermore, the protective cover has a protective door connected to the front hinge, and a hydraulic push rod is installed on the upper side of the protective cover, with a hot press plate at the bottom of the hydraulic push rod.

[0010] Furthermore, the surface of the processing table is provided with a limiting component for limiting, and the limiting component includes a limiting frame, a limiting slide, a servo motor and a bidirectional lead screw, with the limiting frame disposed on the upper side of the processing table.

[0011] Furthermore, a limit groove is provided on the upper surface of the machining table, and a servo motor is installed on the left surface of the machining table. The output end of the servo motor is connected to a bidirectional lead screw through a coupling.

[0012] Furthermore, the limiting assembly also includes a limiting moving plate and a limiting plate, and the limiting moving plate is threadedly connected to the outer surface of the bidirectional lead screw. The surface of the limiting moving plate is slidably connected to the inner side of the limiting groove, and a limiting plate is installed on the top of the limiting moving plate.

[0013] This utility model provides a hot pressing equipment for polytetrafluoroethylene (PTFE) sheets, which has the following advantages:

[0014] 1. This utility model incorporates an exhaust assembly, which includes an exhaust gas treatment box, an exhaust pipe, a fixed partition, an exhaust fan, a dustproof net, a sealing door, a PTFE filter, a multi-stage composite filter element, a PTFE deep filter felt, and an activated carbon adsorption layer. During use, the exhaust fan is activated, drawing the exhaust gas generated during the hot pressing process through the exhaust pipe. The exhaust gas then enters the exhaust gas treatment box, where the PTFE filter intercepts large particles, protecting the downstream high-efficiency filter. The PTFE deep filter felt achieves ultra-fine particle filtration precision, and the multi-stage composite filter element enhances the capture efficiency for submicron particles. The activated carbon adsorption layer removes residual gaseous organic matter. The sealing door seals the exhaust gas treatment box. After exhaust gas treatment, the box can be opened for access to the internal filtration mechanism. The dustproof net prevents external dust and other impurities from entering the exhaust gas treatment box, avoiding blockage of the exhaust fan. This ensures the device effectively treats the exhaust gas and prevents the exhaust gas from impacting the production environment during the hot pressing process.

[0015] This invention utilizes a limiting component, which includes a limiting frame, a limiting groove, a servo motor, and a bidirectional lead screw. The limiting component also includes a limiting moving plate and a limiting plate. In use, the raw material sheet is placed inside the limiting frame 701, which limits the sheet. The servo motor 703 is then activated, causing the bidirectional lead screw 704 to rotate. The bidirectional lead screw 704 then drives the limiting moving plate 705 to slide towards each other along the inner side of the limiting groove 702. The limiting moving plate 705 then drives the limiting plate 706 to move towards each other, thus fixing and limiting the layered sheet material. This allows the device to fix and limit the raw material sheet, improving the quality of hot pressing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a polytetrafluoroethylene sheet hot pressing processing equipment according to the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of a protective cover for a polytetrafluoroethylene sheet hot pressing processing equipment according to the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the exhaust assembly of a polytetrafluoroethylene sheet hot pressing processing equipment according to the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting component of a polytetrafluoroethylene sheet hot pressing processing equipment according to the present invention.

[0020] In the diagram: 1. Processing table; 2. Protective cover; 3. Exhaust assembly; 301. Waste gas treatment box; 302. Exhaust pipe; 303. Fixed partition; 304. Exhaust fan; 305. Dustproof net; 306. Sealing door; 307. PTFE filter screen; 308. Multi-stage composite filter element; 309. PTFE deep filter felt; 310. Activated carbon adsorption layer; 4. Protective door; 5. Hydraulic push rod; 6. Hot press plate; 7. Limiting assembly; 701. Limiting frame; 702. Limiting slide; 703. Servo motor; 704. Two-way lead screw; 705. Limiting moving plate; 706. Limiting plate. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 4As shown, a hot pressing equipment for polytetrafluoroethylene (PTFE) sheets includes a processing table 1 and an exhaust assembly 3. The processing table 1 is an integrated structure, and a protective cover 2 is installed on the upper surface of the processing table 1. The exhaust assembly 3 is located on the right side of the protective cover 2, and the exhaust assembly 3 includes a waste gas treatment box 301, an exhaust pipe 302, a fixed partition 303, an exhaust fan 304, a dustproof net 305, a sealing door 306, a PTFE filter 307, a multi-stage composite filter element 308, a PTFE deep filter felt 309, and an activated carbon adsorption layer 310. The waste gas treatment box 301 is located on the right side of the protective cover 2, and an exhaust pipe 302 is installed on the upper side of the waste gas treatment box 301. The upper end of the protective cover 2 extends through the upper right side and into the interior of the protective cover 2. A fixed partition 303 is installed at the lower end of the interior of the exhaust gas treatment box 301, and an exhaust fan 304 is installed on the surface of the fixed partition 303. A dustproof net 305 is installed at the lower right side of the exhaust gas treatment box 301, and a sealing door 306 is connected to the upper right side of the exhaust gas treatment box 301 by a hinge. A PTFE filter screen 307 is installed at the upper end of the interior of the exhaust gas treatment box 301, and a multi-stage composite filter element 308 is installed inside the exhaust gas treatment box 301. A PTFE depth filter felt 309 is installed on the upper surface of the multi-stage composite filter element 308, and an activated carbon adsorption layer 310 is installed below the multi-stage composite filter element 308.

[0023] The specific operation is as follows: When in use, start the exhaust fan 304 to extract the exhaust gas generated during the hot pressing process through the exhaust pipe 302, allowing the exhaust gas to enter the exhaust gas treatment box 301. Large particles are intercepted by the PTFE filter screen 307 in the exhaust gas treatment box 301, protecting the downstream high-efficiency filter. The PTFE deep filter felt 309 can achieve ultra-fine particle filtration accuracy. The multi-stage composite filter element 308 can enhance the capture efficiency of submicron particles. The activated carbon adsorption layer 310 can remove residual gaseous organic matter. The exhaust gas treatment box 301 can be sealed through the sealing door 306. After the exhaust gas is treated, the exhaust gas treatment box 301 can be opened to facilitate the treatment of the internal filtration mechanism. The dustproof net 305 can prevent external dust and other impurities from entering the exhaust gas treatment box 301 and avoid clogging of the exhaust fan 304.

[0024] Please refer to Figure 2 and Figure 4The protective cover 2 is connected to the protective door 4 by a hinge on the front side, and a hydraulic push rod 5 is installed on the upper side of the protective cover 2. A hot press plate 6 is provided at the bottom of the hydraulic push rod 5. A limiting component 7 for limiting is provided on the surface of the processing table 1. The limiting component 7 includes a limiting frame 701, a limiting slide groove 702, a servo motor 703 and a two-way lead screw 704. The limiting frame 701 is located on the upper side of the processing table 1. A limiting slide groove 702 is opened on the upper surface of the processing table 1. A servo motor 703 is installed on the left surface of the processing table 1. The output end of the servo motor 703 is connected to the two-way lead screw 704 through a coupling. The limiting component 7 also includes a limiting moving plate 705 and a limiting plate 706. The outer surface of the two-way lead screw 704 is threadedly connected to the limiting moving plate 705. The surface of the limiting moving plate 705 is slidably connected to the inner side of the limiting slide groove 702. The limiting plate 706 is installed on the top of the limiting moving plate 705.

[0025] The specific operation is as follows: When using, place the raw material sheet inside the limiting frame 701. The limiting frame 701 limits the sheet. Start the servo motor 703, which drives the bidirectional lead screw 704 to rotate. The bidirectional lead screw 704 drives the limiting moving plate 705 to slide towards each other along the inner side of the limiting slide groove 702. The limiting moving plate 705 drives the limiting plate 706 to move towards each other. The limiting plate 706 fixes and limits the layered sheet. Start the hydraulic push rod 5, which drives the hot press plate 6 to move downward. The hot press plate 6 hot presses and fixes the interlayer sheet.

[0026] In summary, as Figures 1 to 4As shown, in use, the polytetrafluoroethylene (PTFE) sheet hot pressing equipment first places the raw material sheet inside the limiting frame 701, which limits the sheet. Then, the servo motor 703 is started, causing it to drive the bidirectional lead screw 704 to rotate. The bidirectional lead screw 704 then drives the limiting moving plate 705 to slide towards each other along the inner side of the limiting groove 702. The limiting moving plate 705 then drives the limiting plate 706 to move towards each other, thus fixing and limiting the layered sheets. Next, the hydraulic push rod 5 is started, causing it to move the hot pressing plate 6 downwards, which then hot-presses and fixes the interlayered sheets. Finally, the exhaust fan 304 is started, causing it to expel the heat through the exhaust pipe 302. The exhaust gas generated during the compression process is extracted and enters the exhaust gas treatment box 301. Large particles are intercepted by the PTFE filter screen 307 in the exhaust gas treatment box 301, protecting the downstream high-efficiency filter. The PTFE deep filter felt 309 can achieve ultra-fine particle filtration accuracy. The multi-stage composite filter element 308 can enhance the capture efficiency of submicron particles. The activated carbon adsorption layer 310 can remove residual gaseous organic matter. The exhaust gas treatment box 301 can be sealed by the sealing door 306. After the exhaust gas is treated, the exhaust gas treatment box 301 can be opened to facilitate the treatment of the internal filtration mechanism. The dustproof net 305 can prevent external dust and other impurities from entering the exhaust gas treatment box 301 and avoid clogging of the exhaust fan 304.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A polytetrafluoroethylene sheet hot-pressing apparatus comprising a processing table (1) and an exhaust assembly (3), characterized by: The processing table (1) is an integrated structure, and a protective cover (2) is installed on the upper surface of the processing table (1). The exhaust assembly (3) is located on the right side of the protective cover (2), and the exhaust assembly (3) includes an exhaust gas treatment box (301), an exhaust pipe (302), a fixed partition (303), an exhaust fan (304), a dustproof net (305), a sealing door (306), a PTFE filter (307), a multi-stage composite filter element (308), and a PTFE deep filter felt. (309) and activated carbon adsorption layer (310), the waste gas treatment box (301) is located on the right side of the protective cover (2), and an exhaust pipe (302) is installed on the upper side of the waste gas treatment box (301), and the upper end of the exhaust pipe (302) penetrates the upper right end of the protective cover (2) and extends into the interior of the protective cover (2). A fixed partition (303) is installed at the lower end of the interior of the waste gas treatment box (301), and an exhaust fan (304) is provided on the surface of the fixed partition (303).

2. A polytetrafluoroethylene sheet hot-pressing apparatus according to claim 1, wherein The exhaust gas treatment box (301) is equipped with a dustproof net (305) at the lower right side, and a sealing door (306) is connected to the upper right side of the exhaust gas treatment box (301) via a hinge.

3. The polytetrafluoroethylene sheet hot-pressing apparatus according to claim 1, wherein The exhaust gas treatment box (301) is equipped with a PTFE filter (307) at the upper part of the interior, and the exhaust gas treatment box (301) is provided with a multi-stage composite filter element (308).

4. The polytetrafluoroethylene sheet hot-pressing apparatus according to claim 1, wherein The upper surface of the multi-stage composite filter element (308) is provided with a PTFE depth filter felt (309), and an activated carbon adsorption layer (310) is installed below the multi-stage composite filter element (308).

5. The polytetrafluoroethylene sheet hot-pressing apparatus according to claim 1, wherein The protective cover (2) has a front hinge connected to a protective door (4), and a hydraulic push rod (5) is installed on the upper side of the protective cover (2). A hot press plate (6) is provided at the bottom of the hydraulic push rod (5).

6. The polytetrafluoroethylene sheet hot-pressing apparatus according to claim 1, wherein The surface of the processing table (1) is provided with a limiting component (7) for limiting, and the limiting component (7) includes a limiting frame (701), a limiting slide (702), a servo motor (703) and a two-way lead screw (704). The limiting frame (701) is located on the upper side of the processing table (1).

7. A polytetrafluoroethylene sheet hot-pressing apparatus according to claim 6, wherein The upper surface of the processing table (1) is provided with a limit slide groove (702), and a servo motor (703) is installed on the left surface of the processing table (1). The output end of the servo motor (703) is connected to a two-way lead screw (704) through a coupling.

8. A polytetrafluoroethylene sheet hot-pressing apparatus according to claim 6, wherein The limiting component (7) further includes a limiting moving plate (705) and a limiting plate (706), and the outer surface of the bidirectional screw (704) is threadedly connected to the limiting moving plate (705). The surface of the limiting moving plate (705) is slidably connected to the inner side of the limiting slide groove (702), and the limiting plate (706) is installed on the top of the limiting moving plate (705).

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