Curing hot press for fluorinated ethylene propylene resin

Abstract

The utility model belongs to the field of curing hot presses, and particularly relates to a curing hot press for fluorinated ethylene propylene resin, which comprises a bottom plate, stand columns are welded at four corners of the upper end of the bottom plate, the tops of the four stand columns are jointly and fixedly connected with a top plate, and an air cylinder is fixedly mounted at the upper end of the top plate. A piston rod of the air cylinder penetrates through the top plate and is slidably connected with the top plate, the tail end of the piston rod is fixedly connected with a pressing seat, and the outer side of a rod body of the piston rod is slidably sleeved with a hollow sleeve. The hollow sleeve is arranged on the outer side of the piston rod of the air cylinder used for driving the pressing base to ascend and descend, the sponge sleeve and the backing ring are placed in the inner cavity of the hollow sleeve, the sponge sleeve is used for storing lubricating oil, and after the pressing base is reset upwards, the lifting pin on the pressing base enters the hollow sleeve from the lower portion and extrudes the sponge sleeve through the backing ring. And therefore, it is guaranteed that the piston rod is not prone to abrasion, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of curing hot presses, in particular to a curing hot press for polyperfluoroethylene-propylene resin. Background Art

[0002] FEP resin is a polymer material with excellent corrosion resistance and high temperature stability, and is often used to manufacture chemical equipment, electronic components and other corrosion-resistant parts. Curing hot press is a commonly used processing equipment used to cure and shape FEP resin.

[0003] The curing hot press is usually composed of a heating plate, a pressure system and a control system. For example, the invention application patent with application publication number CN106328394A proposes a control system for a hot press curing machine, which is suitable for occasions such as clamping and curing in the production process of solid electrolytic capacitors, including a machine table, characterized in that: the machine table is provided with a lower heat insulation plate, a lower heating plate and a lower heat conductive template from bottom to top in sequence, and a working cylinder with a telescopic working end facing downward is provided on the upper bracket of the machine table, and the lower end of the telescopic working end is connected with an upper heat insulation plate, an upper heating plate and an upper heat conductive template in sequence from top to bottom.

[0004] However, the cylinder of the existing curing hot press is used for a long time, and the piston rod of the cylinder is easily worn, thereby reducing the service life, and the heating plate used for heating is not convenient to be disassembled when it is needed for maintenance at a later stage. Therefore, it is necessary to improve it. Utility Model Content

[0005] The utility model aims to provide a curing hot press for polyperfluoroethylene propylene resin, which solves the problem that the piston rod of the cylinder of the existing curing hot press is easily worn out after long-term use, thereby reducing the service life, and solves the problem that the heating plate used for heating is inconvenient to be disassembled when it needs to be repaired in the later stage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a curing hot press for polyperfluoroethylene propylene resin, comprising a bottom plate, four corners of the upper end of the bottom plate are welded with columns, and the tops of the four columns are fixedly connected to a top plate, a cylinder is fixedly installed on the upper end of the top plate, the piston rod of the cylinder penetrates the top plate and is slidably connected to the top plate, the end of the piston rod is fixedly connected to a pressure seat, the outer side of the rod body of the piston rod is slidably sleeved with a hollow sleeve, the hollow sleeve is fixedly connected to the top plate, the inner cavity of the hollow sleeve is slidably connected with a sponge sleeve and a gasket, and the sponge sleeve and the gasket are in contact, the upper end of the pressure seat is fixedly connected with a push pin, the push pin penetrates the hollow sleeve and is slidably connected to the hollow sleeve, the push pin conflicts with the gasket, the middle part of the upper end of the bottom plate is fixedly connected to a mold, and the interior of the mold is slidably connected to a heating plate.

[0007] Preferably, the inner wall of the hollow sleeve is provided with a through hole, which facilitates the overflow of the lubricating oil in the sponge sleeve.

[0008] Preferably, a support plate is fixedly connected to the inner side of the mold and below the heating plate, a spring 1 is fixedly connected to the upper end of the support plate, a pad is fixedly connected to the top of the spring 1, and the pad is in contact with the heating plate. The elastic force of the spring 1 acts on the pad, thereby providing auxiliary support to the heating plate.

[0009] Preferably, the outer side of the heating plate is fixedly connected with a positioning block, the positioning block contacts the inner surface of the mold, the inner surface of the mold is fixedly connected with a mounting seat, the interior of the mounting seat is slidably connected with a latch, the latch is plugged with the positioning block, a second spring is arranged inside the mounting seat, the middle section of the latch is fixedly connected with a lever, the lever is slidably connected with the mounting seat. The latch can be pulled laterally by the lever, thereby controlling the clutch between the latch and the positioning block.

[0010] Preferably, one end of the second spring is fixedly connected to the latch, and the other end of the second spring is fixedly connected to the inner surface of the mounting seat. By setting the second spring, elastic force can be applied to the latch.

[0011] Preferably, a convex character rotating block is rotatably connected to the lower end of the mounting seat, a limit strip is fixedly connected to the bottom of the convex character rotating block, a rubber bead is fixedly connected to the end of the limit strip close to the lever, and the rubber bead is engaged with the lever. The limit strip and the rubber bead are arranged to limit the lever.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model arranges a hollow sleeve on the outside of the cylinder piston rod for driving the pressure seat to rise and fall, and places a sponge sleeve and a gasket in the inner cavity of the hollow sleeve. The sponge sleeve is used to store lubricating oil. When the pressure seat is reset upward, the ejector pin on the pressure seat enters into the hollow sleeve from below and squeezes the sponge sleeve through the gasket, so that the lubricating oil in the sponge sleeve overflows and lubricates the piston rod, thereby ensuring that the piston rod is not easy to wear and the service life is improved.

[0014] 2. The utility model arranges two positioning blocks on the outer side of the heating plate in the mold, and then arranges a mounting seat on the inner side of the mold. A latch elastically supported by a spring is arranged in the mounting seat. The latch is laterally inserted into the positioning block under the elastic force of the spring. In this way, the heating plate can be disassembled and assembled by only controlling the clutch between the latch and the positioning block, which is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0017] Figure 3 For the utility model Figure 2 A magnified view of the structure of part A;

[0018] Figure 4 For the utility model Figure 2 A magnified view of the structure of part B;

[0019] Figure 5 It is a three-dimensional cross-sectional view of the local structure of the utility model.

[0020] In the figure: 1. bottom plate; 2. column; 3. top plate; 4. cylinder; 5. pressure seat; 6. hollow sleeve; 7. sponge sleeve; 8. gasket; 9. through hole; 10. ejector pin; 11. mold; 12. heating plate; 13. support plate; 14. spring 1; 15. pad; 16. mounting seat; 17. latch; 18. lever; 19. spring 2; 20. embossed rotating block; 21. limit strip; 22. rubber card bead; 23. positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 A curing hot press for polyperfluoroethylene propylene resin comprises a bottom plate 1, four corners of the upper end of the bottom plate 1 are welded with columns 2, and the tops of the four columns 2 are fixedly connected to a top plate 3, a cylinder 4 is fixedly installed on the upper end of the top plate 3, the piston rod of the cylinder 4 penetrates the top plate 3 and is slidably connected to the top plate 3, the end of the piston rod is fixedly connected to a press seat 5, the outer side of the rod body of the piston rod is slidably sleeved with a hollow sleeve 6, the hollow sleeve 6 is fixedly connected to the top plate 3, the inner cavity of the hollow sleeve 6 is slidably connected with a sponge sleeve 7 and a gasket 8, and the sponge sleeve 7 and the gasket 8 are in contact, and the inner wall of the hollow sleeve 6 is provided with a through hole 9. The provision of the through hole 9 facilitates the overflow of the lubricating oil in the sponge sleeve 7, the upper end of the press seat 5 is fixedly connected with a push pin 10, the push pin 10 penetrates the hollow sleeve 6 and is slidably connected to the hollow sleeve 6, and the push pin 10 conflicts with the gasket 8.

[0023] See also Figure 2 , Figure 4 , the mold 11 is fixedly connected to the middle of the upper end of the bottom plate 1, and the heating plate 12 is slidably connected inside the mold 11. A support plate 13 is fixedly connected to the inner side of the mold 11 and located below the heating plate 12, and a spring 14 is fixedly connected to the upper end of the support plate 13, and a pad 15 is fixedly connected to the top of the spring 14, and the pad 15 is in contact with the heating plate 12. The elastic force of the spring 14 acts on the pad 15, thereby providing auxiliary support for the heating plate 12. A positioning block 23 is fixedly connected to the outer side of the heating plate 12, and the positioning block 23 contacts the inner surface of the mold 11. A mounting seat 16 is fixedly connected to the inner surface of the mold 11, and a latch 17 is slidably connected to the inside of the mounting seat 16, and the latch 17 is plugged into the positioning block 23. A spring 2 19 is arranged inside the mounting seat 16, and a lever 18 is fixedly connected to the middle section of the pin body of the latch 17, and the lever 18 is slidably connected to the mounting seat 16. The latch 17 can be pulled laterally by the lever 18, thereby controlling the clutch between the latch 17 and the positioning block 23. One end of the spring 19 is fixedly connected to the latch 17, and the other end of the spring 19 is fixedly connected to the inner surface of the mounting seat 16. By setting the spring 19, the elastic force can be applied to the latch 17.

[0024] See also Figure 4 The lower end of the mounting seat 16 is internally rotatably connected with a convex character rotating block 20, the bottom of the convex character rotating block 20 is fixedly connected with a limit strip 21, and the end of the limit strip 21 close to the lever 18 is fixedly connected with a rubber clamping bead 22, and the rubber clamping bead 22 is clamped with the lever 18. The setting of the limit strip 21 and the rubber clamping bead 22 has a limiting effect on the lever 18.

[0025] The specific implementation process of the utility model is as follows: when in use, the polyperfluoroethylene propylene resin is placed in the mold 11, and then the heating plate 12 is used for auxiliary heating. Subsequently, the cylinder 4 pushes the pressure seat 5 downward so that the pressure seat 5 and the mold 11 are molded together, and then the polyperfluoroethylene propylene resin is hot-pressed and cured in combination with the heating plate 12. When the piston rod of the cylinder 4 pulls the pressure seat 5 upward, the ejector pin 10 on the pressure seat 5 enters the hollow sleeve 6 from below, and squeezes the sponge sleeve 7 through the gasket ring 8, so that the lubricating oil in the sponge sleeve 7 overflows to lubricate the piston rod, thereby ensuring that the piston rod is not easy to wear and improves the service life; if the heating plate 12 needs to be repaired in the later stage, it is only necessary to rotate the limit bar 21 so that the rubber card bead 22 on the limit bar 21 is disengaged from the lever 18, and then the latch 17 is pulled horizontally by the lever 18 so that the latch 17 is disengaged from the positioning block 23, thereby releasing the restriction on the heating plate 12, and then the heating plate 12 is pushed downward, and the spring 14 is compressed, and finally the heating plate 12 is pulled out horizontally.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot press for curing polyperfluoroethylene propylene resin, comprising a bottom plate (1), characterized in that: The four corners of the upper end of the bottom plate (1) are welded with columns (2), and the tops of the four columns (2) are fixedly connected to a top plate (3). A cylinder (4) is fixedly installed on the upper end of the top plate (3). The piston rod of the cylinder (4) passes through the top plate (3) and is slidably connected to the top plate (3). The end of the piston rod is fixedly connected to a pressure seat (5). The outer side of the rod body of the piston rod is slidably sleeved with a hollow sleeve (6), and the hollow sleeve (6) is fixedly connected to the top plate (3). The inner cavity of the hollow sleeve (6) is slidably connected to a sponge sleeve (7) and a gasket ring (8), and the sponge sleeve (7) and the gasket ring (8) are in contact. The upper end of the pressure seat (5) is fixedly connected to a push pin (10), and the push pin (10) passes through the hollow sleeve (6) and is slidably connected to the hollow sleeve (6). The push pin (10) is in contact with the gasket ring (8). The middle part of the upper end of the bottom plate (1) is fixedly connected to a mold (11), and the interior of the mold (11) is slidably connected to a heating plate (12).

2. A hot press for curing fluoroethylene-propylene resin according to claim 1, characterized in that: The inner wall of the hollow sleeve (6) is provided with a through hole (9).

3. The curing hot press of a fluoroethylene-propylene resin according to claim 1, characterized in that: A support plate (13) is fixedly connected to the inner side of the mold (11) and below the heating plate (12); a spring 1 (14) is fixedly connected to the upper end of the support plate (13); a pad (15) is fixedly connected to the top of the spring 1 (14); and the pad (15) is in contact with the heating plate (12).

4. The curing hot press of a fluoroethylene-propylene resin according to claim 1, characterized in that: A positioning block (23) is fixedly connected to the outer side of the heating plate (12), the positioning block (23) contacts the inner surface of the mold (11), the inner surface of the mold (11) is fixedly connected to a mounting seat (16), the interior of the mounting seat (16) is slidably connected to a latch (17), the latch (17) is plugged into the positioning block (23), a spring 2 (19) is provided inside the mounting seat (16), a middle section of the latch (17) is fixedly connected to a lever (18), the lever (18) is slidably connected to the mounting seat (16).

5. The curing hot press of polyperfluoroethylene-propylene resin according to claim 4, characterized in that: One end of the second spring (19) is fixedly connected to the latch (17), and the other end of the second spring (19) is fixedly connected to the inner surface of the mounting seat (16).

6. A hot press for curing fluoroethylene-propylene resin according to claim 4, characterized in that: A convex character rotating block (20) is rotatably connected to the interior of the lower end of the mounting seat (16); a limit strip (21) is fixedly connected to the bottom of the convex character rotating block (20); a rubber clamping bead (22) is fixedly connected to one end of the limit strip (21) close to the lever (18), and the rubber clamping bead (22) is clamped to the lever (18).

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