Film coating device for lubricating film on surface of electric contact material

Abstract

The utility model discloses an electric contact material surface lubricating film coating device, and relates to the technical field of film coating devices. The film body winding assembly is arranged at the end of the material conveying table, and the film body winding assembly is used for winding the lubricating film; the limiting roller is located at the top of the material conveying table, fixing blocks are installed on the two sides of the top of the material conveying table, and the limiting roller is rotationally installed between the fixing blocks; and the film pressing assembly is arranged between the film body winding assembly and the limiting roller, the film pressing assembly is used for extruding and covering the electric contact material with the lubricating film, and the film pressing assembly comprises a two-way extrusion component used for extruding the lubricating film, a mounting frame and an adjusting oil cylinder. According to the film laminating device, the film can be laminated on the lubricating film through the film pressing assembly before the lubricating film is extruded by the limiting roller, the lubricating film can be extruded from the middle to the two sides through the two-way extrusion component to be laminated, bubbles between the lubricating film and an electric contact material plate can be reduced, and the film laminating effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of coating devices, in particular to a coating device for a lubricating film on the surface of an electric contact material. Background Art

[0002] Electrical contact materials are key materials for the preparation of electrical and electrical circuits that control on and off and load current appliances (such as switches, relays, starters, and instruments, etc.). They are responsible for connecting and disconnecting circuits and load currents. The material properties determine the breaking capacity and contact reliability of electrical switches. In order to reduce oxidation, reduce friction and wear, improve electrical performance, and reduce pollution, electrical contact materials need to be coated.

[0003] The patent document with publication number CN215943687U discloses a device for coating the surface of a copper-based electrical contact material with a lubricating film, including a fixing frame with a U-shaped cross-section, a conveyor belt is provided at the inner bottom of the fixing frame, and a detachable and replaceable film roll is provided above the conveyor belt near the left end, a metal plate is placed between the film roll and the conveyor belt, and a clamping mechanism for elastically clamping the upper surface of the metal plate is provided on the right side of the film roll. When the metal plate is coated, the metal plate is transported by the conveyor belt, and the film is coated by the film roll at this time. The coated metal plate is squeezed and tightened when passing through the clamping mechanism, thereby achieving a better coating effect of the metal plate.

[0004] The coating device adopted in the above technical solution directly completes the extrusion coating through the clamping mechanism when coating the electrical contact material. Since the coating area is large, many bubbles are easily generated between the lubricating film and the electrical contact material, and the coating quality needs to be improved. Utility Model Content

[0005] The utility model aims to provide a device for coating a lubricating film on the surface of an electrical contact material, which solves the problem that during coating, a large area of ​​coating is easily generated between the lubricating film and the electrical contact material, and the coating quality needs to be improved.

[0006] The utility model solves the above technical problems through the following technical solutions, and the utility model includes:

[0007] Feeding platform;

[0008] A film winding assembly is arranged at the end of the feeding platform, and is used for winding the lubricating film;

[0009] A limiting roller is located on the top of the conveying platform. Fixed blocks are installed on both sides of the top of the conveying platform. The limiting roller is rotatably installed between the fixed blocks.

[0010] The film pressing assembly is arranged between the film winding assembly and the limiting roller, and is used for pressing the lubricating film onto the electrical contact material by extrusion.

[0011] Preferably, the film pressing assembly includes a bidirectional extrusion component for extruding the lubricating film, a mounting frame and an adjusting cylinder, the mounting frame is fixedly installed on the top of the feed platform, the adjusting cylinder is fixedly installed on the top of the mounting frame, and the adjusting cylinder is used to control the position of the bidirectional extrusion component.

[0012] Preferably, the bidirectional extrusion component includes a shell with a receiving groove at the bottom, a first rack, a control cylinder and a first extrusion plate, the control cylinder is installed on the outer wall of the shell, the first rack is arranged on one side of the inner wall of the receiving groove and is installed on the output end of the control cylinder, and the first extrusion plate is installed at the bottom of the first rack through a first connecting block.

[0013] Preferably, the bidirectional extrusion component also includes a second rack, a second extrusion plate and a braking gear, the second rack is arranged on the other side of the inner wall of the accommodating groove, the second extrusion plate is installed at the bottom of the second rack through a second connecting block, and the braking gear is rotatably installed at the center position of the accommodating groove and is meshed with the first rack and the second rack on both sides.

[0014] Preferably, limit blocks are installed at the rear sides of the first rack and the second rack, and limit slots are provided on both sides of the inner wall of the accommodating slot, and the limit blocks are clamped in the limit slots.

[0015] Preferably, the first extrusion plate and the second extrusion plate are initially arranged below the center of the shell and the bottom combination is in a semicircular shape.

[0016] Preferably, the film winding assembly comprises a mounting plate and a winding roller, the mounting plate is fixedly mounted on a cross bar on one side of the feed platform, and the winding roller is rotatably mounted on the mounting plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The laminating assembly can coat the lubricating film before it is squeezed by the limiting roller, and the bidirectional squeezing component can coat the lubricating film from the middle to both sides, which can reduce the generation of bubbles between the lubricating film and the electrical contact material plate and achieve a better coating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural view of the utility model;

[0020] Figure 2 This is a top view of the bidirectional extrusion component of the utility model;

[0021] Figure 3This is a bottom view of the bidirectional extrusion component of the utility model;

[0022] Figure 4 This is an exploded view of the bidirectional extrusion component of the utility model.

[0023] The numbers in the figure represent:

[0024] 1. Feeding platform; 2. Film winding assembly; 201. Mounting plate; 202. Winding roller; 3. Limiting roller; 4. Film pressing assembly; 401. Mounting frame; 402. Adjusting cylinder; 5. Bidirectional extrusion component; 501. Shell; 502. First rack; 503. Control cylinder; 504. First extrusion plate; 505. Second rack; 506. Second extrusion plate; 507. Braking gear; 6. Fixed block; 7. Limiting block; 8. Limiting groove. DETAILED DESCRIPTION

[0025] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0026] This embodiment provides a technical solution: a device for coating a lubricating film on the surface of an electrical contact material, such as Figure 1-Figure 4 As shown, it includes a feeding platform 1, a film winding assembly 2, a limiting roller 3 and a film pressing assembly 4. The feeding platform 1 is a crawler conveyor belt driven by a stepper motor, and the electrical contact material is placed above the feeding platform 1 to complete the transmission movement.

[0027] In the specific implementation, such as Figure 1 As shown, the film winding assembly 2 is arranged at the end of the feed platform 1. The film winding assembly 2 is used to wind up the lubricating film. The film winding assembly 2 includes a mounting plate 201 and a winding roller 202. The mounting plate 201 is fixedly mounted on the cross bar on one side of the feed platform 1. The winding roller 202 is rotatably mounted on the mounting plate 201. The lubricating film can be wound up and placed through the winding roller 202.

[0028] The limiting roller 3 is located on the top of the conveying platform 1. Fixed blocks 6 are installed on both sides of the top of the conveying platform 1. The limiting roller 3 is rotatably installed between the fixed blocks 6. The limiting roller 3 can be used to extrude the lubricating film from above and coat it on the top of the electrical contact material plate. The electrical contact material moves on the crawler above the conveying platform 1. The lubricating film on the winding roller 202 is initially located above the electrical contact material plate, and the end of the lubricating film is coated on the front end of the electrical contact material plate. As the rear side of the lubricating film moves, it is squeezed and coated on the electrical contact material plate when it passes through the limiting roller 3.

[0029] In the specific implementation, such as Figure 1-Figure 2As shown, the film pressing component 4 is arranged between the film winding component 2 and the limiting roller 3. The film pressing component 4 is used to extrude the lubricating film onto the electrical contact material. The film pressing component 4 includes a bidirectional extrusion component 5 for extruding the lubricating film, a mounting frame 401 and an adjusting cylinder 402. The mounting frame 401 is fixedly installed on the top of the feed platform 1, and the adjusting cylinder 402 is fixedly installed on the top of the mounting frame 401. The adjusting cylinder 402 is used to control the position of the bidirectional extrusion component 5. The film pressing component 4 can complete the coating of the lubricating film before the lubricating film is squeezed by the limiting roller 3, and the bidirectional extrusion component 5 can complete the coating by squeezing the lubricating film from the middle to both sides, which can reduce the generation of bubbles between the lubricating film and the electrical contact material plate, and the coating effect is better. During the coating, the stepper motor starts and stops intermittently. During the stop stage, the adjusting cylinder 402 pushes the bidirectional extrusion component 5 downward to a position where the coating operation can be completed, and then the coating operation can be completed by the bidirectional extrusion component 5.

[0030] In the specific implementation, such as Figure 3-Figure 4 As shown, the bidirectional extrusion component 5 includes a shell 501 with a receiving groove at the bottom, a first rack 502, a control cylinder 503 and a first extrusion plate 504, the control cylinder 503 is installed on the outer wall of the shell 501, the first rack 502 is arranged on one side of the inner wall of the receiving groove and is installed on the output end of the control cylinder 503, the first extrusion plate 504 is installed on the bottom of the first rack 502 through a first connecting block, the bidirectional extrusion component 5 also includes a second rack 505, a second extrusion plate 506 and a brake gear 507, the second rack 505 is arranged on the other side of the inner wall of the receiving groove, the second extrusion plate 506 is installed on the bottom of the second rack 505 through a second connecting block, and the brake gear 507 is rotatably installed at the center of the receiving groove and the two sides are respectively meshed with the first rack 502 and the second rack 505.

[0031] Furthermore, a limiting block 7 is installed on the rear side of the first rack 502 and the second rack 505, and a limiting groove 8 is provided on both sides of the inner wall of the accommodating groove. The limiting block 7 is clamped in the limiting groove 8. The clamping arrangement of the limiting block 7 and the limiting groove 8 can ensure that the first rack 502 and the second rack 505 have good stability when moving.

[0032] Furthermore, the initial positions of the first extrusion plate 504 and the second extrusion plate 506 are set below the center of the shell 501 and the bottom combination is semicircular, so it can be ensured that the initial contact with the lubricating film starts from the center of the lubricating film. The contact area is small and the generation of bubbles can be minimized.

[0033] The specific coating process is as follows: during coating, under the driving action of the above-mentioned regulating cylinder 402, the first extrusion plate 504 and the second extrusion plate 506 can move to the center of the lubricating film, and the control cylinder 503 is started. The control cylinder 503 can push the first rack 502, and the first rack 502 can drive the first extrusion plate 504 to move through the first connecting block. Therefore, the bottom of the first extrusion plate 504 can coat the lubricating film from the center to one side to the upper half of the electrical contact material plate. Since the brake gear 507 is rotatably installed in the center of the receiving groove and the two sides are divided The first rack 502 and the second rack 505 are respectively meshed with each other, so when the first rack 502 moves, it can drive the brake gear 507 to rotate, and the brake gear 507 can drive the second rack 505 to move in the opposite direction of the first rack 502. When moving, it can drive the second extrusion plate 506 to move through the second connecting block. Therefore, the bottom of the second extrusion plate 506 can coat the lubricating film from the center to the other side to the other half of the area above the electrical contact material plate, thereby quickly completing the coating, and finally the limiting roller 3 can fully squeeze again to complete the entire coating operation.

[0034] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but they will all fall within the scope of protection of the present invention.

Claims

1. A device for coating a lubricating film on the surface of an electrical contact material, characterized in that: include: Feeding platform (1); A film winding assembly (2) is arranged at the end of the feeding platform (1), and the film winding assembly (2) is used for winding the lubricating film; A limiting roller (3) is located on the top of the conveying platform (1), and fixed blocks (6) are installed on both sides of the top of the conveying platform (1), and the limiting roller (3) is rotatably installed between the fixed blocks (6); The film pressing assembly (4) is arranged between the film winding assembly (2) and the limiting roller (3), and the film pressing assembly (4) is used to squeeze the lubricating film onto the electrical contact material.

2. The device for coating the surface of an electrical contact material with a lubricating film according to claim 1, characterized in that: The film pressing assembly (4) comprises a bidirectional extrusion component (5) for extruding a lubricating film, a mounting frame (401) and an adjusting cylinder (402), wherein the mounting frame (401) is fixedly mounted on the top of the feed platform (1), and the adjusting cylinder (402) is fixedly mounted on the top of the mounting frame (401), and the adjusting cylinder (402) is used to control the position of the bidirectional extrusion component (5).

3. The device for coating the surface of an electrical contact material with a lubricating film as claimed in claim 2, characterized in that: The bidirectional extrusion component (5) comprises a shell (501) with a receiving groove at the bottom, a first rack (502), a control cylinder (503) and a first extrusion plate (504); the control cylinder (503) is installed on the outer wall of the shell (501); the first rack (502) is arranged on one side of the inner wall of the receiving groove and installed on the output end of the control cylinder (503); and the first extrusion plate (504) is installed on the bottom of the first rack (502) through a first connecting block.

4. A device for coating a lubricating film on the surface of an electrical contact material as claimed in claim 3, characterized in that: The bidirectional extrusion component (5) further comprises a second rack (505), a second extrusion plate (506) and a brake gear (507); the second rack (505) is arranged on the other side of the inner wall of the receiving groove; the second extrusion plate (506) is installed at the bottom of the second rack (505) through a second connecting block; the brake gear (507) is rotatably installed at the center of the receiving groove and its two sides are respectively meshed with the first rack (502) and the second rack (505).

5. The device for coating the surface of an electrical contact material with a lubricating film as claimed in claim 4, characterized in that: Limiting blocks (7) are installed on the rear sides of the first rack (502) and the second rack (505), and limiting grooves (8) are provided on both sides of the inner wall of the accommodating groove, and the limiting blocks (7) are clamped in the limiting grooves (8).

6. The device for coating the surface of an electrical contact material with a lubricating film as claimed in claim 4, characterized in that: The first extrusion plate (504) and the second extrusion plate (506) are initially arranged below the center of the shell (501) and their bottoms are combined into a semicircular shape.

7. The device for coating the surface of an electrical contact material with a lubricating film according to claim 1, characterized in that: The film winding assembly (2) comprises a mounting plate (201) and a winding roller (202); the mounting plate (201) is fixedly mounted on a crossbar on one side of the feed platform (1); and the winding roller (202) is rotatably mounted on the mounting plate (201).

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