Automatic hydraulic molding press for processing vinyl fluoride gaskets

Abstract

The utility model discloses an automatic hydraulic molding press for processing a fluoroethylene gasket, which relates to the field of compression molding of the fluoroethylene gasket, and comprises a fixed platform, the bottom end of the fixed platform is provided with a barrel part structure, the periphery of the barrel part of the fixed platform is rotatably provided with a rotating platform, the fixed platform is provided with an upper pressure head mechanism, and the upper pressure head mechanism is provided with a lower pressure head mechanism. Four lower die mechanisms are distributed at the top end of the rotating platform in the circumferential direction, a fixing rod extending to the position above the fixing platform is fixedly installed below the fixing platform, and a driving mechanism is installed at the position, located below the rotating platform, of the outer wall of the fixing rod. And a demolding mechanism extending into the lower mold mechanism is mounted below the rotating platform. By arranging the driving mechanism and the four lower die mechanisms which are distributed at equal intervals in the axial direction, the multi-station die pressing effect can be achieved, and therefore the working efficiency of the die pressing machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of compression molding of fluoroethylene gaskets, specifically an automatic hydraulic compression molding machine for processing fluoroethylene gaskets. Background Technology

[0002] Compression molding is an operation in which powdered, granular, or fibrous plastic is placed into a mold cavity at the molding temperature, and then the mold is closed and pressure is applied to shape and cure it. Compression molding can be used for thermosetting plastics, thermoplastic plastics, and rubber materials.

[0003] In existing technologies, compression molding is generally performed using a fixed device, where the pressure head and the mold are aligned vertically, and the compression process is achieved by the push of a hydraulic cylinder. In actual use, the compression molding machine cannot operate during the feeding and unloading processes, thus leaving room for further improvement in work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic hydraulic molding machine for processing fluoroethylene gaskets in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic hydraulic molding machine for processing fluoroethylene gaskets, comprising a fixed platform, the bottom end of which has a cylindrical structure, a rotating platform rotatably mounted on the outer circumference of the cylindrical part of the fixed platform, an upper pressing head mechanism mounted on the fixed platform, four lower mold mechanisms circumferentially distributed on the top of the rotating platform, a fixed rod extending above the fixed platform fixedly mounted below the fixed platform, a driving mechanism mounted on the outer wall of the fixed rod below the rotating platform, and a demolding mechanism extending into the interior of the lower mold mechanisms mounted below the rotating platform.

[0006] As a further embodiment of this utility model: the upper pressure head mechanism includes a sliding plate slidably mounted on the upper part of the outer wall of the fixed rod, a connecting rod fixedly mounted on one side of the bottom end of the sliding plate, an extrusion die head mounted on the bottom end of the connecting rod, a mating hole formed inside the extrusion die head, a hydraulic cylinder mounted on the top end of the fixed platform, and the output end of the hydraulic cylinder fixedly connected to the middle part of the bottom end of the sliding plate.

[0007] As a further embodiment of this utility model: the lower mold mechanism includes four fixed lower molds, which are circumferentially distributed at the top of the rotating platform, and the bottom of the inner wall of each lower mold has an upwardly protruding connecting rod integrally formed.

[0008] As a further embodiment of this utility model: the driving mechanism includes a rotary motor connected to the fixed rod via a mounting bracket. A drive gear is mounted on the output end of the rotary motor. A toothed ring meshes with the outer circumference of the drive gear. A connecting cylinder is fixedly mounted on the inner wall of the toothed ring. The top of the connecting cylinder is fixedly connected to the bottom end of the rotating platform. The diameter of the toothed ring is equal to the diameter of the drive gear. The tooth blocks on the outer circumference of the drive gear are equidistantly distributed in a 90-degree circumferential direction.

[0009] As a further embodiment of this utility model: the demolding mechanism includes a demolding plate that is slidably connected to the inner wall of the lower mold. The demolding plate has a sliding hole that is slidably connected to the docking rod. The bottom end of the demolding plate is integrally formed with a sliding column that extends through to the bottom of the rotating platform. A ball is movably connected to the bottom end of the sliding column. A protruding plate is integrally formed on the outer periphery of the sliding column below the rotating platform. A connecting spring abuts between the top end of the protruding plate and the bottom end of the rotating platform. The connecting spring is sleeved with the sliding column.

[0010] As a further improvement of this utility model, the demolding mechanism also includes an extrusion plate fixedly connected to the mounting bracket via a vertical rod, and the top of the extrusion plate is formed with an extrusion slope.

[0011] As a further embodiment of this utility model: a fixing plate is integrally formed above the outer periphery of the fixing rod and below the sliding plate, and a return spring abuts between the top end of the fixing plate and the bottom end of the sliding plate.

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

[0013] 1. By setting up a drive mechanism and four axially equidistant lower mold mechanisms, a multi-station molding effect can be achieved, thereby improving the working efficiency of the molding machine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0016] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of point A in the middle.

[0018] In the diagram: 1. Fixed platform; 2. Rotating platform; 3. Fixed rod; 4. Hydraulic cylinder; 5. Fixed plate; 6. Return spring; 7. Sliding plate; 8. Connecting rod; 9. Extrusion die head; 10. Docking hole; 11. Lower die; 12. Docking rod; 13. Connecting cylinder; 14. Gear ring; 15. Rotary motor; 16. Drive gear; 17. Extrusion plate; 18. Demolding plate; 19. Sliding hole; 20. Sliding column; 21. Protruding plate; 22. Connecting spring; 23. Ball bearing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 In this embodiment of the present invention, an automatic hydraulic molding machine for processing fluoroethylene gaskets includes a fixed platform 1. The bottom end of the fixed platform 1 has a cylindrical structure. A rotating platform 2 is rotatably mounted on the outer periphery of the cylindrical part of the fixed platform 1. An upper pressure head mechanism is mounted on the fixed platform 1. Four lower mold mechanisms are distributed circumferentially on the top end of the rotating platform 2. A fixed rod 3 extending above the fixed platform 1 is fixedly mounted below the fixed platform 1. A drive mechanism is mounted on the outer wall of the fixed rod 3 below the rotating platform 2. A demolding mechanism extending into the lower mold mechanism is mounted below the rotating platform 2.

[0021] In this embodiment: First, it should be noted that: a conductive slip ring is installed on the outer periphery of the rotating platform 2. The rotating ring part of the conductive slip ring is fixedly installed on the rotating platform 2, while the fixed ring part of the conductive slip ring is rotatably connected to the outer periphery of its rotating ring part. The fixed ring part of the conductive slip ring is electrically connected to an external power source through a wire, while the rotating ring part of the conductive slip ring is electrically connected to the heating elements distributed on the inner periphery of the lower mold 11. The principle of the conductive slip ring is: to achieve 360-degree rotation and achieve the effect of rotational conductivity by contacting the brush bristles with the ring body.

[0022] During operation, a certain amount of powdered vinyl fluoride is added to the four lower mold mechanisms. Then, the conductive slip ring is connected to the power supply. At this time, due to the large resistance of the heating element of the lower mold 11, electrical energy is converted into heat energy, and the generated heat heats the powdered vinyl fluoride raw material.

[0023] Then the upper pressure head mechanism moves downward and connects with the lower mold mechanism located below it. At this time, the raw material is molded to form a fluoroethylene gasket.

[0024] As the drive mechanism drives the rotating platform 2 to rotate, the lower mold mechanism located below the upper pressure head mechanism rotates 90 degrees, and the demolding mechanism moves upward to push out the formed fluoroethylene gasket, achieving an automatic demolding effect.

[0025] Please refer to this carefully. Figure 1 , Figure 2 The upper pressure head mechanism includes a sliding plate 7 slidably mounted on the upper part of the outer wall of the fixed rod 3. A connecting rod 8 is fixedly mounted on one side of the bottom end of the sliding plate 7. An extrusion die 9 is mounted on the bottom end of the connecting rod 8. A mating hole 10 is formed inside the extrusion die 9. A hydraulic cylinder 4 is mounted on the top end of the fixed platform 1. The output end of the hydraulic cylinder 4 is fixedly connected to the middle part of the bottom end of the sliding plate 7. The lower mold mechanism includes four fixed lower molds 11. The four lower molds 11 are circumferentially distributed on the top end of the rotating platform 2. A mating rod 12 protruding upward is integrally formed on the bottom end of the inner wall of the lower mold 11. A fixed plate 5 is integrally formed on the upper part of the outer periphery of the fixed rod 3 below the sliding plate 7. A return spring 6 abuts between the top end of the fixed plate 5 and the bottom end of the sliding plate 7.

[0026] In this embodiment: when the lower mold mechanism rotates to below the upper pressure head mechanism, the hydraulic cylinder 4 is activated. The hydraulic cylinder 4 moves downward and pulls the sliding plate 7 to move downward in sync. The downward movement of the sliding plate 7 compresses the return spring 6. At this time, the return spring 6 is compressed. Simultaneously, the sliding plate 7 drives the extrusion die 9 to move downward through the connecting rod 8. The extrusion die 9 enters the inner cavity of the lower mold 11 below it. At the same time, the docking hole 10 is aligned with the docking rod 12, applying sufficient pressure to the raw material located in the lower mold 11 to achieve compression molding.

[0027] After molding, the hydraulic cylinder 4 returns to its original position, at which time the return spring 6 returns to its original position simultaneously, pushing the sliding plate 7 back to its initial position.

[0028] Please refer to this carefully. Figure 2 and Figure 3 The drive mechanism includes a rotary motor 15 connected to a fixed rod 3 via a mounting bracket. A drive gear 16 is mounted on the output end of the rotary motor 15. A gear ring 14 meshes with the outer periphery of the drive gear 16. A connecting cylinder 13 is fixedly mounted on the inner wall of the gear ring 14. The top of the connecting cylinder 13 is fixedly connected to the bottom end of the rotating platform 2. The diameter of the gear ring 14 is equal to the diameter of the drive gear 16. The tooth blocks on the outer periphery of the drive gear 16 are evenly distributed in a circumferential direction at ninety degrees.

[0029] In this embodiment: the rotary motor 15 is started, and the rotary motor 15 drives the drive gear 16 to rotate. After the drive gear 16 meshes with the gear ring 14, it drives the gear ring 14 to rotate 90 degrees. The gear ring 14 drives the rotating platform 2 to rotate 90 degrees through the connecting cylinder 13, thereby realizing the rotation of the four lower mold mechanisms by 90 degrees. After the rotation, one lower mold mechanism is always located below the upper pressure head mechanism. After the drive gear 16 separates from the gear ring 14, the upper pressure head mechanism can then move downward.

[0030] Please refer to this carefully. Figure 2 and Figure 3 The demolding mechanism includes a demolding plate 18 that is slidably connected to the inner wall of the lower mold 11. The demolding plate 18 has a sliding hole 19 that is slidably connected to the connecting rod 12. The bottom end of the demolding plate 18 is integrally formed with a sliding column 20 that extends through to the bottom of the rotating platform 2. The bottom end of the sliding column 20 is movably connected with a ball bearing 23. The outer periphery of the sliding column 20 is integrally formed with a protruding plate 21 located below the rotating platform 2. The top end of the protruding plate 21 and the bottom end of the rotating platform 2 are abutted by a connecting spring 22. The connecting spring 22 is sleeved with the sliding column 20. The demolding mechanism also includes an extrusion plate 17 that is fixedly connected to the mounting bracket through a vertical rod. The top end of the extrusion plate 17 is formed with an extrusion slope.

[0031] In this embodiment: During the rotation of the lower mold mechanism located below the upper pressure head mechanism by 90 degrees, the ball bearing 23 below it comes into contact with the extrusion inclined surface. Since the extrusion plate 17 is in a fixed state, the ball bearing 23 under force pushes the sliding column 20 to move upward. At this time, the protruding plate 21 moves synchronously, the connecting spring 22 is compressed, and the upward-moving sliding column 20 pushes the demolding plate 18 to move upward, pushing out the formed fluoroethylene gasket and completing the demolding of the fluoroethylene gasket.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic hydraulic molding machine for processing fluoroethylene gaskets, comprising a fixed platform (1), characterized in that, The fixed platform (1) has a cylindrical structure at its bottom end. A rotating platform (2) is rotatably mounted on the outer periphery of the cylindrical part of the fixed platform (1). An upper pressure head mechanism is mounted on the fixed platform (1). Four lower mold mechanisms are distributed circumferentially at the top of the rotating platform (2). A fixed rod (3) extending above the fixed platform (1) is fixedly mounted below the fixed platform (1). A driving mechanism is mounted on the outer wall of the fixed rod (3) below the rotating platform (2). A demolding mechanism extending into the lower mold mechanism is mounted below the rotating platform (2).

2. The automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 1, characterized in that, The upper pressure head mechanism includes a sliding plate (7) slidably mounted on the upper part of the outer wall of the fixed rod (3). A connecting rod (8) is fixedly mounted on one side of the bottom end of the sliding plate (7). An extrusion die (9) is mounted on the bottom end of the connecting rod (8). A mating hole (10) is formed inside the extrusion die (9). A hydraulic cylinder (4) is mounted on the top end of the fixed platform (1). The output end of the hydraulic cylinder (4) is fixedly connected to the middle part of the bottom end of the sliding plate (7).

3. The automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 2, characterized in that, The lower mold mechanism includes four fixed lower molds (11), which are circumferentially distributed at the top of the rotating platform (2). The bottom of the inner wall of each lower mold (11) is integrally formed with an upwardly protruding connecting rod (12).

4. The automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 3, characterized in that, The drive mechanism includes a rotary motor (15) connected to the fixed rod (3) via a mounting bracket. A drive gear (16) is mounted on the output end of the rotary motor (15). A gear ring (14) meshes with the outer circumference of the drive gear (16). A connecting cylinder (13) is fixedly mounted on the inner wall of the gear ring (14). The top of the connecting cylinder (13) is fixedly connected to the bottom end of the rotating platform (2). The diameter of the gear ring (14) is equal to the diameter of the drive gear (16). The tooth blocks on the outer circumference of the drive gear (16) are equidistantly distributed in a circumferential direction at ninety degrees.

5. An automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 4, characterized in that, The demolding mechanism includes a demolding template (18) that is slidably connected to the inner wall of the lower mold (11). The demolding template (18) has a sliding hole (19) that is slidably connected to the docking rod (12). The bottom end of the demolding template (18) is integrally formed with a sliding column (20) that extends through to the bottom of the rotating platform (2). The bottom end of the sliding column (20) is movably connected with a ball (23). The outer periphery of the sliding column (20) is integrally formed with a protruding plate (21) located below the rotating platform (2). The top end of the protruding plate (21) and the bottom end of the rotating platform (2) are abutted by a connecting spring (22). The connecting spring (22) is sleeved with the sliding column (20).

6. The automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 5, characterized in that, The demolding mechanism also includes an extrusion plate (17) fixedly connected to the mounting bracket via a vertical rod, and the top of the extrusion plate (17) is formed with an extrusion slope.

7. An automatic hydraulic molding machine for processing fluoroethylene gaskets according to claim 3, characterized in that, A fixing plate (5) is integrally formed above the outer periphery of the fixing rod (3) and below the sliding plate (7). A return spring (6) abuts between the top end of the fixing plate (5) and the bottom end of the sliding plate (7).

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