Polytetrafluoroethylene film pressing plate device

Abstract

The invention discloses a polytetrafluoroethylene film pressing plate device, and relates to the technical field of high polymer material processing equipment, and the polytetrafluoroethylene film pressing plate device is characterized in that the polytetrafluoroethylene film pressing plate device comprises a workbench, the interior of the workbench is hollow, a mold and a mounting plate are symmetrically arranged at the top of the workbench, and a hot pressing plate is arranged at the top of the workbench and at the bottom of the mounting plate; a driving assembly used for driving a hot pressing plate to press a polytetrafluoroethylene film is arranged at the top of the mounting plate, the pivot assemblies are symmetrically arranged on the front end face of the mounting plate, and each pivot assembly comprises two bevel gear transmission assemblies used for driving a rotating column at the bottom of one bevel gear to rotate; the stamping device has the beneficial effects that the two hub assemblies and the stamping assembly are arranged, the stamping assembly can be driven by the air cylinder to move, and therefore the effect that feeding is conducted while stamping is conducted is achieved, waiting is not needed in the feeding process, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of polymer material processing equipment, and more specifically, to a polytetrafluoroethylene film pressing plate device. Background Art

[0002] Polytetrafluoroethylene (Teflon) is commonly referred to as "non-stick coating" or "easy-to-clean material". This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene is resistant to high temperatures and has a very low friction coefficient, so it can be used as a lubricant and has become an ideal coating for the inner layer of easy-to-clean water pipes.

[0003] Polytetrafluoroethylene (PTFE) membranes are widely used in electronics, medical, chemical and other fields due to their excellent chemical stability, high temperature resistance and low friction coefficient. In the prior art, the molding of PTFE membranes mostly adopts a hot pressing process, in which PTFE powder or pre-sintered blanks are pressed into dense membrane materials under high temperature and high pressure. However, traditional press plate equipment needs to rely on external ejection equipment (such as pneumatic ejector, hydraulic ejector, etc.) to achieve demolding after pressing. This process has the following significant defects: Independent ejection equipment requires additional power sources (such as air pumps, hydraulic stations) and control units, which increases the equipment footprint and manufacturing costs. Regular maintenance (such as seal replacement and hydraulic oil replenishment) is required, which increases the operation and maintenance burden. Therefore, it is urgent to develop an efficient, reliable and low-energy demoulding technology to simplify the PTFE membrane pressing plate process, reduce production costs and improve product consistency.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a polytetrafluoroethylene film pressing plate device. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a polytetrafluoroethylene film pressing plate device.

[0006] To achieve the above object, the present invention provides the following technical solution: a polytetrafluoroethylene film pressing plate device, comprising A workbench, wherein the interior of the workbench is hollow, and molds are symmetrically arranged on the top of the workbench; A mounting plate is arranged on the top of the workbench, a hot pressing plate is arranged at the bottom of the mounting plate, and a driving component for driving the hot pressing plate to press the polytetrafluoroethylene film is arranged on the top of the mounting plate; A hub assembly is symmetrically arranged on the front end surface of the mounting plate, and a single hub assembly includes two sets of bevel gear transmission assemblies for driving a rotating column arranged at the bottom of one of the bevel gears to rotate; A transmission assembly is arranged inside the workbench, the transmission assembly comprises a first gear arranged outside the rotating column, and a limiting portion for limiting the rotation of the first gear is arranged inside the first gear; An ejection assembly is arranged at the bottom of the workbench, and the ejection assembly includes a sliding column, a top plate is arranged on the top of the sliding column, and the top plate is arranged in the mold. A mounting cylinder is arranged at the bottom of the sliding column, and a track part is arranged in the mounting cylinder for controlling the sliding column to drive the top plate to automatically eject and reset.

[0007] Furthermore, the driving assembly includes a cylinder arranged on one side of the mounting plate, the telescopic end of the cylinder is connected to a connecting plate, sliding rods are symmetrically arranged inside the mounting plate, a sliding block is slidably connected to the outer side of a single sliding rod, the connecting plate connects the two sliding blocks, and a motor is arranged on the top of the sliding block.

[0008] Furthermore, the stamping assembly includes a screw arranged at the output end of the motor, a first bevel gear is arranged on the outside of the screw, telescopic rods are symmetrically arranged on both sides of the screw, one end of a single telescopic rod is connected to the sliding block, and the other end is penetrated and connected to a connecting plate and the end is connected to a hot pressing plate.

[0009] Furthermore, the hub assembly includes a hub box installed on one side of the mounting plate, the hub box is hollow, the first bevel gear is meshingly connected with the second bevel gear, one end of a connecting column is connected to the bottom axis of the second bevel gear, and the other end of the connecting column is connected to a third bevel gear.

[0010] Furthermore, the third bevel gear is meshedly connected with a fourth bevel gear, the third bevel gear and the fourth bevel gear are respectively located on both sides of the hub box, and the bottom axis of the fourth bevel gear is connected to the rotating column.

[0011] Furthermore, the first gear is meshedly connected to the outside with a second gear, a mounting column is provided through the second gear, the second gear is meshedly connected to the third gear, and the thickness of the third gear is greater than that of the second gear.

[0012] Furthermore, the limiting portion includes a mounting groove provided in the first gear, a limiting block is rotatably connected in the mounting groove, a ratchet is provided on the outer side of the rotating column, and the ratchet is matched with the limiting block.

[0013] Furthermore, the track portion includes a sliding track mirror-mounted on the mounting tube, the sliding track is spirally arranged, a spring is arranged on the top of the sliding column, the spring is arranged inside the mounting tube, and the end of the spring is arranged at the bottom of the workbench.

[0014] Furthermore, a rolling seat is symmetrically arranged at the bottom of the sliding column, and the rolling seat is embedded in the sliding column. When the sliding column rotates, the rolling seat moves along the sliding track.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets two sets of hub components and stamping components, and can move the stamping components under the drive of the cylinder, so as to achieve the effect of loading on one side and performing stamping on the other side. In this way, there is no need to wait during the loading process, which greatly improves work efficiency.

[0016] 2. The present invention provides an ejection assembly, so that the hot pressing plate can eject the pressed polytetrafluoroethylene film pressing plate from the mold during its rising process, and the movement of the hot pressing plate will not be affected during its falling process. This has the advantage of saving a lot of demoulding time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the driving component in the present invention; Figure 3 It is a structural schematic diagram of the hub component in the present invention; Figure 4 It is a schematic diagram of the internal structure of the workbench in the present invention; Figure 5 It is a structural schematic diagram of the transmission assembly in the present invention; Figure 6 A schematic diagram of the structure of the ejector assembly of the present invention; Figure 7 for Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0018] Description of reference numerals: In the figure: 1. Workbench; 2. driving assembly; 21. cylinder; 22. motor; 23. sliding rod; 24. sliding block; 3. Stamping assembly; 31. Telescopic rod; 32. Screw; 33. Hot pressing plate; 34. Connecting plate; 35. Mold; 4. Mounting plate; 5. Hub assembly; 51. First bevel gear; 52. Second bevel gear; 53. Connecting column; 54. Third bevel gear; 55. Fourth bevel gear; 56. Rotating column; 6. Transmission assembly; 61. First gear; 62. Mounting column; 63. Second gear; 64. Sliding column; 65. Third gear; 66. Limit block; 67. Ratchet; 7. Ejector assembly; 71. Mounting cylinder; 72. Sliding track; 73. Spring; 74. Rolling seat. DETAILED DESCRIPTION

[0019] like Figure 1-7 As shown, the present invention provides a polytetrafluoroethylene film pressing plate device, including a workbench 1, the interior of the workbench 1 is hollow, a mold 35 mounting plate 4 is symmetrically arranged on the top of the workbench 1, and a hot pressing plate 33 is arranged on the top of the workbench 1. A driving component 2 for driving the hot pressing plate 33 to press the polytetrafluoroethylene film is arranged on the top of the mounting plate 4. The driving component 2 includes a cylinder 21 arranged on one side of the mounting plate 4, and a connecting plate is connected to the telescopic end of the cylinder 21. The connecting plate is used to connect two sliding blocks 24 together, so that the motor 22 is driven to move by the cylinder 21. The mounting plate 4 is symmetrically provided with sliding rods 23, and the outer surface of the single sliding rod 23 is symmetrically provided. The side sliding connection is provided with a sliding block 24, and a connecting plate connects the two sliding blocks 24. A motor 22 is arranged on the top of the sliding block 24. The stamping assembly 3 includes a screw 32 arranged at the output end of the motor 22, and a first bevel gear 51 is arranged on the outer side of the screw 32. Telescopic rods 31 are symmetrically arranged on both sides of the screw 32. One end of a single telescopic rod 31 is connected to the sliding block 24, and the other end is penetrated and connected with a connecting plate 34 and the end is connected with a hot pressing plate 33. The output end of the motor 22 drives the screw 32 to rotate counterclockwise. Due to the limiting effect of the telescopic rod 31, the connecting plate 34 drives the hot pressing plate 33 to move downward, thereby pressing the polytetrafluoroethylene film in the mold 35.

[0020] The pivot assembly 5 is symmetrically arranged on the front end surface of the mounting plate 4. A single pivot assembly 5 includes two sets of bevel gear transmission assemblies 6, which are used to drive a rotating column 56 arranged at the bottom of one of the bevel gears to rotate. The pivot assembly 5 includes a pivot box installed on one side of the mounting plate 4. The pivot box is hollow. The first bevel gear 51 is meshedly connected with the second bevel gear 52. The bottom axis of the second bevel gear 52 is connected to one end of a connecting column 53. The other end of the connecting column 53 is connected to a third bevel gear 54. The third bevel gear 54 is meshedly connected with a fourth bevel gear 55. The third bevel gear 54 and the fourth bevel gear 55 are respectively located on both sides of the pivot box. The bottom axis of the fourth bevel gear 55 is connected to the It is connected to the rotating column 56. When the motor 22 rotates counterclockwise, it drives the first bevel gear 51 to rotate counterclockwise, thereby driving the second bevel gear 52 to rotate, thereby transmitting the third bevel gear 54 to rotate, and then driving the fourth bevel gear 55 to rotate, thereby driving the rotating column 56 to rotate. At this time, the rotating column 56 rotates clockwise, so the ratchet 67 in the first gear 61 rotates clockwise and does not have a limiting effect with the limit block 66. Therefore, it does not drive the first gear 61 to rotate. On the contrary, driving the first gear 61 to rotate drives the second gear 61 to rotate, thereby driving the third gear 65 to rotate.

[0021] The transmission assembly 6 is arranged inside the workbench 1. The transmission assembly includes a first gear 61 arranged outside the rotating column 56. A limiting portion for limiting its rotation is arranged inside the first gear 61. The limiting portion includes a mounting groove provided in the first gear 61. The mounting groove is rotatably connected to a limiting block 66. A ratchet 67 is arranged outside the rotating column 56. The ratchet 67 cooperates with the limiting block 66. When the rotating column 56 rotates clockwise, the ratchet 67 will not conflict with the limiting block 66, thereby not driving the first gear 61 to rotate. The first gear 6 The second gear 63 is meshedly connected to the outer side, and the mounting column 62 is penetrated in the second gear 63. The third gear 65 is meshedly connected to the second gear 63. The thickness of the third gear 65 is greater than that of the second gear 63. The thickness of the third gear 65 is greater than that of the second gear 63. The purpose of setting the thickness of the third gear 65 greater than that of the second gear 63 is that the sliding column 64 will drive the third gear 65 to move up and down during the movement. The thickness of the third gear 65 is much greater than that of the second gear 63, so the third gear 65 and the second gear 63 are always in meshing state.

[0022] The ejection assembly 7 is arranged at the bottom of the workbench 1. The ejection assembly 7 includes a sliding column 64. A top plate is arranged on the top of the sliding column 64. The top plate is arranged in the mold 35. A mounting cylinder 71 is arranged at the bottom of the sliding column 64. A track portion for controlling the sliding column 64 to drive the top plate to automatically eject and reset is arranged in the mounting cylinder 71. The track portion includes a sliding track 72 arranged in a mirror image on the mounting cylinder 71. The sliding track 72 is arranged in a spiral shape. A spring 73 is arranged on the top of the sliding column 64. The spring 73 is arranged inside the mounting cylinder 71. The end of the spring 73 is arranged at the bottom of the workbench 1. A rolling seat 74 is symmetrically arranged at the bottom of the sliding column 64. The rolling seat 74 is embedded in the sliding column 64. The rolling seat 74 moves along the sliding track 72 when the sliding column 64 rotates. When the first gear 61 drives the second gear 63 to rotate, it drives the third gear 65 to rotate. Since the bottom of the third gear 65 The rolling seat 74 is sleeved on the bottom of the sliding track 72 in the mounting cylinder 71, so when the rotating column 56 rotates clockwise, it drives the sliding column 64 to rotate, thereby moving downward under the limit of the sliding track 72. The portion where the spring 73 is connected to the sliding column 64 is provided with a rotatable connecting shaft. Therefore, when the sliding column 64 moves downward, the spring 63 is compressed. When the hot pressing plate 33 rises to its position, the ratchet 67 no longer resists the limit block 66, so the spring 73 loses the external pressure, and then the spring 73 recovers its deformation, thereby pushing the sliding column 64 to move upward, and the third gear 65 will also rotate accordingly, thereby driving the second gear 63 to rotate, and then driving the first gear 61 to rotate counterclockwise, so that the ratchet 67 will not resist the limit block 66, and will not drive the rotating column 56 to continue to rotate, thereby pushing the top plate to eject the pressed polytetrafluoroethylene membrane from the mold 35. Figure 4 As shown, the distance between the third gear 65 and the top of the interior of the workbench 1 is the moving range of the top plate, and the third gear 65 will not collide with the interior of the workbench 1.

[0023] Working principle: Place the polytetrafluoroethylene film material into the mold 35, then the motor 22 rotates counterclockwise to drive the screw 32 to rotate, thereby driving the outer connecting plate 34 of the screw 32 to drive the hot plate to move downward under the limiting effect of the telescopic rod 31, and then the polytetrafluoroethylene film in the mold 35 is pressed, and at the same time, the first bevel gear 51 drives the second bevel gear 52 to rotate, thereby driving the connecting column 53 to rotate, thereby driving the third bevel gear 54 to rotate, thereby driving the fourth bevel gear 55 to rotate, and then the rotating column 56 rotates counterclockwise, thereby not driving the first gear 61 to rotate; When the hot pressing plate 33 rises, it drives the rotating column 56 to rotate clockwise, and then drives the ratchet 67 to rotate, thereby driving the first gear 61 to rotate with the cooperation of the limit block 66, thereby driving the second gear 63 meshing with it to rotate on the outside of the mounting column 62, thereby driving the third gear 65 meshing with it to rotate. Since the bottom of the sliding column 64 set inside the third gear 65 is provided with a rolling seat 74, and the rolling seat 74 is at the bottom of the sliding track 72 in the mounting cylinder 71, and the sliding track 72 is symmetrically and spirally arranged, the sliding column 64 drives the third gear 65 and the top plate to move downward under the limit of the sliding track 72. Since the polytetrafluoroethylene membrane plate is attached to the mold 35 after molding, , so the polytetrafluoroethylene membrane will not fall off. When the hot pressing plate 33 rises into place, it no longer provides external force to the limit block 66 and the ratchet 67, thereby no longer providing a limit effect on the compression of the spring 73. Therefore, the spring 73 recovers its deformation, drives the sliding column 64 to move upward, and then drives the top plate to move upward, thereby ejecting the polytetrafluoroethylene membrane from the mold 35. During the downward pressure molding, the staff has already filled another mold 35, so that the cylinder 21 pushes the connecting plate and then pushes the sliding block 24 to slide on the outside of the sliding rod 23, thereby driving the motor 22 to slide, and then the first bevel gear 51 on the outside of the screw 32 is meshed and connected with the second bevel gear 52 of the other group, and then the next pressing plate processing is carried out.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A polytetrafluoroethylene film pressing plate device, characterized in that: include A workbench (1), the interior of the workbench (1) is hollow, and a mold (35) is symmetrically arranged on the top of the workbench (1); A mounting plate (4) is arranged on the top of the workbench (1); a hot pressing plate (33) is arranged at the bottom of the mounting plate (4); and a driving component (2) for driving the hot pressing plate (33) to press the polytetrafluoroethylene film is arranged on the top of the mounting plate (4); A pivot assembly (5) is symmetrically arranged on the front end surface of the mounting plate (4), wherein a single pivot assembly (5) includes two sets of bevel gear transmission assemblies (6) for driving a rotating column (56) arranged at the bottom of one of the bevel gears to rotate; A transmission assembly (6) is arranged inside the workbench (1), the transmission assembly (6) comprising a first gear (61) arranged outside the rotating column (56), and a limiting portion for limiting the rotation of the first gear (61) is arranged inside the first gear (61); An ejection assembly (7) is arranged at the bottom of the workbench (1), the ejection assembly (7) comprising a sliding column (64), a top plate being arranged on the top of the sliding column (64), the top plate being arranged in the mold (35), a mounting tube (71) being arranged at the bottom of the sliding column (64), and a track portion being arranged in the mounting tube (71) for controlling the sliding column (64) to drive the top plate to automatically eject and reset.

2. A polytetrafluoroethylene film pressing plate device according to claim 1, characterized in that: The driving assembly (2) comprises a cylinder (21) arranged on one side of a mounting plate (4), the telescopic end of the cylinder (21) being connected to a connecting plate, sliding rods (23) being symmetrically arranged inside the mounting plate (4), a sliding block (24) being slidably connected to the outer side of a single sliding rod (23), the connecting plate connecting two sliding blocks (24), and a motor (22) being arranged on the top of the sliding block (24).

3. A polytetrafluoroethylene film pressing plate device according to claim 2, characterized in that: The punching assembly (3) comprises a screw (32) arranged at the output end of the motor (22), a first bevel gear (51) being arranged outside the screw (32), telescopic rods (31) being symmetrically arranged on both sides of the screw (32), one end of a single telescopic rod (31) being connected to a sliding block (24), the other end being penetrated by a connecting plate (34) and the end being connected to a hot pressing plate (33).

4. A polytetrafluoroethylene film pressing plate device according to claim 1, characterized in that: The hub assembly (5) comprises a hub box mounted on one side of the mounting plate (4); the hub box is hollow; the first bevel gear (51) is meshingly connected to the second bevel gear (52); one end of a connecting column (53) is connected to the bottom axis of the second bevel gear (52); and the other end of the connecting column (53) is connected to a third bevel gear (54).

5. A polytetrafluoroethylene film pressing plate device according to claim 4, characterized in that: The third bevel gear (54) is meshedly connected with a fourth bevel gear (55); the third bevel gear (54) and the fourth bevel gear (55) are respectively located on both sides of the hub box; the bottom axis of the fourth bevel gear (55) is connected to a rotating column (56).

6. A polytetrafluoroethylene film pressing plate device according to claim 1, characterized in that: The first gear (61) is meshedly connected to the outside with a second gear (63), the second gear (63) is provided with a mounting column (62) running through it, the second gear (63) is meshedly connected to the third gear (65), and the thickness of the third gear (65) is greater than that of the second gear (63).

7. A polytetrafluoroethylene film pressing plate device according to claim 1, characterized in that: The limiting portion comprises a mounting groove provided in the first gear (61), a limiting block (66) being rotatably connected in the mounting groove, a ratchet (67) being arranged on the outside of the rotating column (56), and the ratchet (67) and the limiting block (66) being matched with each other.

8. A polytetrafluoroethylene film pressing plate device according to claim 1, characterized in that: The track portion comprises a sliding track (72) which is arranged in a mirror image on the mounting cylinder (71); the sliding track (72) is arranged in a spiral shape; a spring (73) is arranged on the top of the sliding column (64); the spring (73) is arranged inside the mounting cylinder (71); and the end of the spring (73) is arranged on the bottom of the workbench (1).

9. A polytetrafluoroethylene film pressing plate device according to claim 8, characterized in that: A rolling seat (74) is symmetrically arranged at the bottom of the sliding column (64). The rolling seat (74) is embedded in the sliding column (64). The rolling seat (74) moves along the sliding track (72) when the sliding column (64) rotates.

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