Automatic mould pressing forming machine for polytetrafluoroethylene gaskets

Abstract

The utility model discloses an automatic mould pressing forming machine for polytetrafluoroethylene gaskets, and relates to the technical field of mould pressing equipment, the automatic mould pressing forming machine for polytetrafluoroethylene gaskets comprises a cabinet body and a mould pressing table, the upper end of the mould pressing table is provided with an upper mould pressing assembly and a lower mould pressing assembly, the automatic mould pressing forming machine further comprises a cleaning box, and the upper mould pressing assembly comprises a mould pressing air cylinder and an upper pressing mould; the cleaning box is arranged on the mold pressing table through a driving assembly, the cleaning box is provided with a movable groove, the movable groove is provided with a front cleaning plate and a rear cleaning plate, and the front cleaning plate and the rear cleaning plate are each provided with a cleaning shovel; according to the mold pressing device, powder can be prevented from scattering everywhere during mold pressing through the cleaning box, and after mold pressing is completed, the scattered powder can be shoveled into the cleaning opening and the cleaning groove through the front cleaning plate and the rear cleaning plate; and the table top of the mold pressing table is automatically cleaned and recycled, so that raw material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of molding equipment, in particular to an automatic molding machine for PTFE gaskets. Background Technique

[0002] Polytetrafluoroethylene (abbreviated as PTFE) has excellent chemical stability and corrosion resistance. It is one of the best wear- and corrosion-resistant materials in the world today and is widely used in various occasions that require resistance to acids, alkalis, and organic solvents. It has solved many problems in the fields of chemical engineering, petroleum, pharmaceuticals, hydraulic systems, etc.

[0003] PTFE gaskets (full name: polytetrafluoroethylene gaskets) are generally made by molding technology. Different from other materials, the filler of PTFE gaskets during molding is powder. After molding, it also needs to be calcined and cured. When making PTFE gaskets, the powder needs to be filled into the mold and kept uniform and flat. In the existing PTFE gasket molding equipment, before and after molding, when sorting the powder in the mold and when the mold is lifted after molding, some powder will be scattered beside, which is not convenient to clean and causes waste of resources. Content of the Utility Model

[0004] The utility model provides an automatic molding machine for PTFE gaskets, which has the advantage of being able to clean and recycle the scattered raw material powder, so as to solve the problem that the raw material powder is scattered and wasted everywhere when the existing molding press is in use.

[0005] To achieve the above object, the utility model provides the following technical solution: an automatic molding machine for PTFE gaskets, including a molding table, an upper molding assembly and a lower molding assembly are arranged on the upper end of the molding table, and a cleaning box is also included, wherein:

[0006] The upper molding assembly includes a molding cylinder and an upper pressing mold located in the cleaning box, and the output rod of the molding cylinder is fixedly connected with the upper pressing mold through a fixing hole;

[0007] The cleaning box is slidably arranged on the upper end of the molding table through a driving component. The cleaning box is provided with an activity slot with front and rear openings. The front and rear ends of the activity slot are respectively provided with a front cleaning plate and a rear cleaning plate, and cleaning shovels are arranged on the sides of the front cleaning plate and the rear cleaning plate close to each other;

[0008] The lower molding assembly includes a molding groove on the upper end surface of the molding table. The part of the molding table surrounded by the molding groove is provided with a cleaning port, and a cleaning groove is arranged behind the molding groove.

[0009] As a preferred technical solution of the utility model, the driving component includes a driving cylinder installed on the upper end of the molding table. A connecting plate is installed on the output rod of the driving cylinder, and the connecting plate is fixedly connected with the rear end of the cleaning box.

[0010] As a preferred technical solution of the present utility model, connecting sliding platforms are symmetrically installed at both ends of the cleaning box, limiting sliders are installed on the outer sides of the connecting sliding platforms, limiting sliding grooves are symmetrically arranged on both sides of the molding table, and the limiting sliders are slidably connected with the limiting sliding grooves.

[0011] As a preferred technical solution of the present utility model, grooves are provided at the lower ends of the cleaning shovels of the front cleaning plate and the rear cleaning plate, and cleaning brushes are installed in the grooves.

[0012] As a preferred technical solution of the present utility model, the rear cleaning plate is fixed at the rear end of the movable groove, the front cleaning plate is rotatably connected to the front end of the movable groove through a shaft hole, a servo motor is installed on the side end of the cleaning box, and the output shaft of the servo motor is fixed to the shaft for rotation on the front cleaning plate.

[0013] As a preferred technical solution of the present utility model, a controller is installed on the molding table, and the driving cylinder, the servo motor and the molding cylinder are all electrically connected to the controller.

[0014] As a preferred technical solution of the present utility model, a collection groove is provided at the front end of the molding table, the cleaning port and the cleaning groove are both communicated with the collection groove, and a collection drawer that moves through rollers is movably connected in the collection groove.

[0015] Compared with the prior art, the present utility model provides a tetrafluoro gasket automatic molding machine, which has the following beneficial effects:

[0016] The present utility model can prevent the powder attached to the mold from scattering everywhere after molding through the cleaning box. After molding, the cleaning shovels and cleaning brushes on the front and rear cleaning plates can shovel the scattered powder on the molding table into the cleaning port and the cleaning groove, automatically clean the tabletop of the molding table, and the raw materials cleaned into the cleaning port and the cleaning groove are uniformly recycled through the collection drawer, saving the resources of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a structural diagram of the cleaning box of the present utility model;

[0019] Figure 3 is an exploded view of the cleaning box and the upper molding assembly of the present utility model;

[0020] Figure 4 is the present utility model Figure 1 Enlarged view of area A in;

[0021] Figure 5 is the present utility model Figure 1 Enlarged view of area B in;

[0022] Figure 6 For the present utility model Figure 3 is the enlarged view of area C in this utility model.

[0023] In the figure: 1, molding table; 11, collection tank; 12, limit sliding groove; 2, driving assembly; 21, driving cylinder; 22, connecting plate; 3, cleaning box; 31, limit slider; 32, movable groove; 33, fixing hole; 34, servo motor; 35, front cleaning plate; 36, rear cleaning plate; 361, cleaning shovel; 362, groove; 363, cleaning brush; 37, connecting slide table; 4, upper molding assembly; 41, molding cylinder; 42, upper pressing mold; 5, lower molding assembly; 51, molding groove; 52, cleaning port; 53, cleaning groove; 6, collection drawer; 7, controller. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0025] Please refer to Figures 1-5 , the present utility model discloses a tetrafluoro gasket automatic molding machine, including a molding table 1, an upper molding assembly 4 and a lower molding assembly 5 are arranged at the upper end of the molding table 1, and a cleaning box 3 is further included, wherein:

[0026] The upper molding assembly 4 includes a molding cylinder 41 and an upper pressing mold 42 located in the cleaning box 3, and the output rod of the molding cylinder is fixedly connected to the upper pressing mold 42 through a fixing hole 33;

[0027] The cleaning box 3 is slidably arranged at the upper end of the molding table 1 through a driving assembly 2, the cleaning box 3 is provided with a movable groove 32 with front and rear openings, a front cleaning plate 35 and a rear cleaning plate 36 are respectively arranged at the front and rear ends of the movable groove 32, and cleaning shovels 361 are arranged on the sides of the front cleaning plate 35 and the rear cleaning plate 36 close to each other;

[0028] The lower molding assembly 5 includes a molding groove 51 on the upper end surface of the molding table 1, a cleaning port 52 is arranged on the part of the molding table 1 surrounded by the molding groove 51, and a cleaning groove 53 is arranged at the rear side of the molding groove 51.

[0029] Please refer to the attached Figure 1, the driving assembly 2 includes a driving cylinder 21 installed at the upper end of the molding table 1. A connecting plate 22 is installed on the output rod of the driving cylinder 21, and the connecting plate 22 is fixedly connected to the rear end of the cleaning box 3. Specifically, the driving cylinder 21 can control the front-back sliding of the cleaning box 3 and drive the upper molding assembly 4 to move.

[0030] Please refer to the attached Figure 1 , Figure 5 , both ends of the cleaning box 3 are symmetrically installed with connecting sliding tables 37. A limit slider 31 is installed outside the connecting sliding table 37. Both sides of the molding table 1 are symmetrically provided with limit sliding grooves 12. The limit slider 31 is slidably connected to the limit sliding groove 12, and the limit sliding groove 12 cooperates with the limit slider 31.

[0031] In this embodiment, the limit slider 31 is stuck in the limit sliding groove 12, which can prevent the cleaning box 3 from tilting when the upper pressing mold 42 presses down.

[0032] Please refer to the attached Figure 3 , Figure 6 , at the lower ends of the cleaning shovels 361 of the front cleaning plate 35 and the rear cleaning plate 36, there are grooves 362. A cleaning brush 363 is installed in the groove 362. Specifically, the bristles on the cleaning brush 363 can more thoroughly sweep the raw material powder into the cleaning port 52 and the cleaning groove 53.

[0033] Please refer to the attached Figure 1 , the molding table 1 is installed with a controller 7. The driving cylinder 21 and the molding cylinder 41 are both electrically connected to the controller 7. A collection groove 11 is provided at the front end of the molding table 1. The cleaning port 52 and the cleaning groove 53 are both... In this embodiment, the raw material powder entering the cleaning groove 53 and the cleaning port 52 will fall into the collection drawer 6 for collection, which is convenient for subsequent recycling of this part of the powder. Embodiment 2

[0034] Based on the above Embodiment 1, please refer to the attached Figure 2 , the attached Figure 3 , the rear cleaning plate 36 is fixed at the rear end of the movable groove 32, the front cleaning plate 35 is rotatably connected to the front end of the movable groove 32 through a shaft hole. A servo motor 34 is installed on the side end of the cleaning box 3. The output shaft of the servo motor 34 is fixed to the shaft for rotation on the front cleaning plate 35. The molding table 1 is installed with a controller 7, and the servo motor 34 is electrically connected to the controller 7.

[0035] In this embodiment, when the cleaning box 3 slides forward, the controller 7 controls the rotation of the servo motor 34 to open the front cleaning plate 35, preventing the cleaning box 3 from pushing the scattered powder forward. After the upper pressing mold 42 is aligned with the lower pressing mold, the controller 7 controls the servo motor 34 to reverse to reset the front cleaning plate 35.

[0036] Working principle and usage process of the utility model: Pour the raw material powder into the molding groove 51 and level the powder as a whole. During this process, some powder will scatter near the molding groove 51. Then, start the servo motor 34 and the driving cylinder 21 through the controller 7. The forward rotation of the servo motor 34 drives the front cleaning plate 35 to rotate forward by 90° to open. Then, the driving cylinder 21 drives the cleaning box 3 to move forward through driving the connecting plate 22 until the upper mold is aligned with the molding groove 51. At this time, control the servo motor 34 to reverse through the controller 7 to make the front cleaning plate 35 reverse and reset. Then, start the molding cylinder 41. The molding cylinder 41 drives the upper mold 42 to move downward for molding operation. The powder in the molding groove 51 is pressed into a tetrafluoro gasket. Then, the molding cylinder 41 drives the upper mold 42 to reset, and the driving cylinder 21 drives the cleaning box 3 to move backward and reset. During this process, the cleaning shovel 361 and the cleaning brush 363 on the front cleaning plate 35 will shovel and sweep the raw material powder near the molding groove 51 into the cleaning port 52 and the cleaning groove 53. During the next molding, the cleaning shovel 361 and the cleaning brush 363 on the rear cleaning plate 36 will also shovel and sweep the raw material powder near the molding groove 51 into the cleaning port 52 and the cleaning groove 53. The powder entering the cleaning port 52 and the cleaning groove 53 will fall into the collection drawer 6 for recycling.

Claims

1. A polytetrafluoroethylene gasket automatic molding machine, comprising a molding platform (1), wherein an upper molding component (4) and a lower molding component (5) are arranged at the upper end of the molding platform (1), characterized in that: It also includes a cleaning box (3), wherein: The upper molding assembly (4) comprises a molding cylinder (41) and an upper molding die (42) located in the cleaning box (3); an output rod of the molding cylinder (41) is fixedly connected to the upper molding die (42) via a fixing hole (33); The cleaning box (3) is slidably arranged on the upper end of the molding platform (1) through the driving assembly (2), and the cleaning box (3) is provided with a movable groove (32) with front and rear openings, and the front and rear ends of the movable groove (32) are respectively provided with a front cleaning plate (35) and a rear cleaning plate (36), and a cleaning shovel (361) is provided on the side where the front cleaning plate (35) and the rear cleaning plate (36) are close to each other; The lower molding assembly (5) comprises a molding groove (51) on the upper end surface of the molding platform (1), a cleaning port (52) is provided in the portion of the molding platform (1) surrounded by the molding groove (51), and a cleaning groove (53) is provided on the rear side of the molding groove (51).

2. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 1, characterized in that: The driving assembly (2) comprises a driving cylinder (21) mounted on the upper end of the molding platform (1); an output rod of the driving cylinder (21) is mounted with a connecting plate (22); and the connecting plate (22) is fixedly connected to the rear end of the cleaning box (3).

3. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 2, characterized in that: Connecting slides (37) are symmetrically mounted at both ends of the cleaning box (3), a limiting slide block (31) is mounted outside the connecting slide block (37), limiting slide grooves (12) are symmetrically mounted on both sides of the molding platform (1), and the limiting slide blocks (31) are slidably connected to the limiting slide grooves (12).

4. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 3, characterized in that: The lower ends of the cleaning shovels (361) of the front cleaning plate (35) and the rear cleaning plate (36) are both provided with grooves (362), and a cleaning brush (363) is installed in the grooves (362).

5. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 4, characterized in that: The rear cleaning plate (36) is fixed to the rear end of the movable groove (32), the front cleaning plate (35) is rotatably connected to the front end of the movable groove (32) through an axial hole, and a servo motor (34) is installed at the side end of the cleaning box (3), and the output shaft of the servo motor (34) is fixed to a shaft for rotation on the front cleaning plate (35).

6. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 2, characterized in that: The molding table (1) is equipped with a controller (7), and the driving cylinder (21), the servo motor (34) and the molding cylinder (41) are all electrically connected to the controller (7).

7. The automatic compression molding machine for polytetrafluoroethylene gaskets according to claim 6, characterized in that: A collecting trough (11) is provided at the front end of the molding platform (1), the cleaning port (52) and the cleaning trough (53) are both in communication with the collecting trough (11), and a collecting drawer (6) that moves via rollers is movably connected in the collecting trough (11).

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