Vacuum coating device for plastic parts

Abstract

The utility model relates to a kind of vacuum coating device for plastic parts in the field of vacuum coating device, including box, the outside one side of box is provided with vacuum pump, and the vacuum end of vacuum pump is connected with box by pipeline, the top of box is hinged with top cover, the inside lower end of box is provided with coating mechanism, the middle part of box inside is provided with driving motor, the output end of driving motor is installed with driving rod by vertical plug-in assembly, the outside both sides of driving rod are all fixed with cross bar, the outside one end of cross bar is provided with insert shell, the outside one end of insert shell is provided with jig, the inside one end of cross bar close to insert shell is provided with inner chamber. The utility model can quickly complete jig disassembly without tool, save replacement time, reduce component damage, improve production efficiency and device versatility.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating equipment, specifically to a vacuum coating equipment for plastic parts. Background Technology

[0002] In the field of plastic parts processing, vacuum coating technology is widely used because it can impart excellent properties such as wear resistance, corrosion resistance, and aesthetic appeal to plastic parts. A vacuum coating apparatus typically consists of a housing, a vacuum pump, a coating mechanism, and fixtures for fixing the plastic parts. Among these, the fixtures play a crucial role; they need to be customized according to the shape and size of different plastic parts to ensure the stability of the parts during the coating process and guarantee the coating quality.

[0003] In existing technologies, the connection between fixtures and devices is mostly achieved through bolt fixing or rigid snap-fit ​​connections. However, due to the wide variety of plastic parts and their diverse shapes, different fixtures need to be frequently changed in actual production to adapt to different processing requirements. Traditional connection methods often require tools for fixture assembly and disassembly, which is cumbersome, time-consuming, and labor-intensive. Improper operation can also damage the fixture or device connection points. Especially in mass production, the low efficiency of fixture replacement directly affects the overall production schedule, making it difficult to meet the demands of high-efficiency production. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned defects and provide a vacuum coating device for plastic parts. The device adopts a convenient disassembly and assembly design in the jig connection structure, which solves the technical problems of cumbersome operation and low efficiency when changing jigs in the prior art.

[0005] The objective of this utility model is achieved through the following means:

[0006] A vacuum coating apparatus for plastic parts includes a housing. A vacuum pump is installed on one side of the housing, and the vacuum end of the vacuum pump is connected to the housing via a pipe. A top cover is hinged to the top of the housing. A coating mechanism is installed at the lower end of the housing. A drive motor is installed in the middle of the housing. A drive rod is mounted on the output end of the drive motor via a vertical insertion assembly. Crossbars are fixed on both sides of the drive rod. A housing is installed at one end of the crossbar, and a fixture is installed at one end of the housing. An inner cavity is formed inside the crossbar near the housing. An L-shaped plate is installed, with a second return spring installed at the lower end of the L-shaped plate. A wedge-shaped block is provided on the upper end of the L-shaped plate near the insert housing. A limiting groove is formed inside the insert housing near the wedge-shaped block, and the wedge-shaped block is adapted to the limiting groove. The above structure, through the quick engagement and disengagement of the wedge-shaped block and the limiting groove, combined with the elastic action of the second return spring, allows the jig to be easily connected and disassembled with the insert housing. The jig can be replaced without complicated operations, effectively improving the convenience of jig assembly and disassembly. It can quickly adapt to the processing needs of plastic parts of different shapes, enhancing the versatility and operational flexibility of the device.

[0007] Furthermore, a spring sheet is embedded at one end of the crossbar and is fixedly connected to the crossbar. A guide rod is fixed at the lower end of the inner cavity, and the L-shaped plate is slidably connected to the guide rod. The guide rod restricts the movement trajectory of the L-shaped plate, and the spring sheet generates a lateral force on the insert shell, thereby causing the limiting groove inside to be tightly engaged with the wedge block.

[0008] Furthermore, the vertical insertion assembly includes an inner disk, a square post, and a insertion tube. The square post is integrally formed on the top of the inner disk. The insertion tube has a square groove inside, which is adapted to the square post. The bottom of the inner disk is fixed to the output end of the drive motor. The top of the insertion tube is fixedly connected to the drive rod. The square groove and the square post are combined for transmission.

[0009] Furthermore, an annular groove is formed on the outside of the inner disc, and several side cavities are formed on the inside of the insertion tube outside the annular groove, evenly distributed along the ring. A first return spring and a limiting ball are sequentially installed inside the side cavities facing the annular groove, and the limiting ball is adapted to the annular groove. The first return spring enables the limiting ball to have automatic reset, thereby facilitating its engagement with the annular groove and limiting the insertion tube.

[0010] Furthermore, a base post is fixed at each of the four corners of the lower end face of the box. An adjusting screw is installed inside the lower end of the base post through a threaded connection. The lower end of the adjusting screw is connected to a support plate. The support plate can be raised and lowered by rotating the adjusting screw to level the box.

[0011] Furthermore, a handle is provided on the upper surface of the top cover, and the handle is fixedly connected to the top cover. A window is provided on the front surface of the box body, and the window is fixedly connected to the box body. The handle facilitates opening the top cover, and the window facilitates observation of the coating status inside the box body.

[0012] The beneficial effects of this utility model are:

[0013] This utility model achieves rapid assembly and disassembly of the fixture and device through the cooperation of the crossbar outside the drive rod, the insert shell and the fixture, and the matching structure of the L-shaped plate, the second return spring and the wedge block with the limiting groove in the inner cavity. This structure does not require additional tools, is easy to operate, effectively saves the time of fixture replacement, and improves production efficiency. At the same time, this detachable structure avoids the component damage that may be caused during the disassembly and assembly process of traditional rigid connections, extends the service life of the device and the fixture, and solves the problems of cumbersome and inefficient disassembly and assembly of traditional fixtures. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a vacuum coating device for plastic parts according to the present invention;

[0015] Figure 2 This is a cross-sectional view of a vacuum coating apparatus for plastic parts according to the present invention;

[0016] Figure 3 This is a schematic diagram of the crossbar structure of a vacuum coating device for plastic parts according to this utility model;

[0017] Figure 4 This is an internal sectional view of the insertion tube structure of a vacuum coating device for plastic parts according to this utility model;

[0018] In the diagram, 1. Box body; 2. Top cover; 3. Handle; 4. Window; 5. Bottom column; 6. Adjusting screw; 7. Support plate; 8. Vacuum pump; 9. Coating mechanism; 10. Drive motor; 11. Inner plate; 12. Square column; 13. Insert tube; 14. Square groove; 15. Annular groove; 16. Side cavity; 17. First return spring; 18. Limiting ball; 19. Drive rod; 20. Crossbar; 21. Insert shell; 22. Fixture; 23. Limiting groove; 24. Inner cavity; 25. L-shaped plate; 26. Guide rod; 27. Second return spring; 28. Wedge block; 29. ​​Spring plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, refer to Figures 1-4The specific implementation of this vacuum coating apparatus for plastic parts includes a housing 1. A vacuum pump 8 is installed on one side of the exterior of the housing 1, and the vacuum end of the vacuum pump 8 is connected to the housing 1 via a pipe. A top cover 2 is hinged to the top of the housing 1. A coating mechanism 9 is installed at the lower end of the interior of the housing 1. A drive motor 10 is installed in the middle of the interior of the housing 1. A drive rod 19 is installed at the output end of the drive motor 10 via a vertical insertion assembly. Crossbars 20 are fixed on both sides of the exterior of the drive rod 19. A housing 21 is provided at one end of the crossbar 20, and a fixture 22 is provided at one end of the housing 21. An inner cavity 24 is provided at one end of the crossbar 20 near the housing 21. An L-shaped plate 25 is installed inside the inner cavity 24. A second return spring 27 is installed at the lower end of the L-shaped plate 25. A wedge block 28 is provided at the upper end of the L-shaped plate 25 near the housing 21. A limiting groove 23 is provided inside the housing 21 near the wedge block 28, and the wedge block 28 is adapted to the limiting groove 23.

[0021] like Figure 2 and Figure 3 As shown, a spring plate 29 is embedded at one end of the crossbar 20 and is fixedly connected to the crossbar 20. A guide rod 26 is fixed at the lower end of the inner cavity 24 and the L-shaped plate 25 is slidably connected to the guide rod 26. The guide rod 26 restricts the movement trajectory of the L-shaped plate 25. The spring plate 29 exerts a lateral force on the insert shell 21, thereby causing the limiting groove 23 inside to be tightly engaged with the wedge block 28.

[0022] like Figure 2 and Figure 4 As shown, the vertical insertion assembly includes an inner plate 11, a square post 12, and a insertion tube 13. The square post 12 is integrally formed on the top of the inner plate 11. A square groove 14 is provided inside the insertion tube 13, and the square groove 14 is adapted to the square post 12. The bottom of the inner plate 11 is fixed to the output end of the drive motor 10, and the top of the insertion tube 13 is fixedly connected to the drive rod 19. The square groove 14 is combined with the square post 12 for transmission.

[0023] like Figure 2 and Figure 4 As shown, an annular groove 15 is provided on the outside of the inner disc 11. Several side cavities 16 are evenly distributed along the annular groove 15 inside the insertion tube 13. A first return spring 17 and a limiting ball 18 are installed in sequence inside the side cavity 16 facing the annular groove 15. The limiting ball 18 is adapted to the annular groove 15. The first return spring 17 enables the limiting ball 18 to have automatic reset, which facilitates its engagement with the annular groove 15 and limits the insertion tube 13.

[0024] like Figure 1 and Figure 2As shown, base posts 5 are fixed at the four corners of the lower end face of the box 1. An adjusting screw 6 is installed inside the lower end of the base post 5 through a threaded connection. The lower end of the adjusting screw 6 is connected to a support plate 7. The support plate 7 is raised and lowered by rotating the adjusting screw 6 so as to level the box 1.

[0025] like Figure 1 and Figure 2 As shown, a handle 3 is provided on the upper surface of the top cover 2, and the handle 3 is fixedly connected to the top cover 2. A window 4 is provided on the front surface of the box body 1, and the window 4 is fixedly connected to the box body 1. The handle 3 is for opening the top cover 2, and the window 4 is for observing the coating status inside the box body 1.

[0026] The working principle of the vacuum coating device for plastic parts in this embodiment is as follows: First, the adjustment screw 6 at the lower end of the bottom column 5 is rotated to adjust the support plate 7 to raise and lower, thereby leveling the box 1. The top cover 2 is opened by holding the handle 3, and the plastic part is fixed onto the fixture 22. The fixture 22 is connected to the crossbar 20 through the insert shell 21. Under the action of the second return spring 27, the L-shaped plate 25 in the inner cavity 24 causes the wedge block 28 to engage with the limiting groove 23 of the insert shell 21. At the same time, the spring plate 29 generates a lateral force to ensure a tight fit. The drive motor 10 starts, and its output end is driven through the vertical insertion assembly: the inner plate 11... The square column 12 is inserted into the square groove 14 of the insertion tube 13 to transmit power. The first reset spring 17 in the side cavity 16 pushes the limit ball 18 into the annular groove 15 of the inner plate 11 to ensure that the insertion tube 13 is stably connected to the inner plate 11, thereby driving the drive rod 19, the crossbar 20 and the fixture 22 to rotate. After the top cover 2 is closed, the vacuum pump 8 evacuates the box 1 through the pipeline. The internal coating mechanism 9 performs coating operation on the rotating plastic parts. The operator can observe the internal coating status through the transparent window 4 at the front of the box 1. Throughout the process, the components work together to achieve stable clamping, rotation and vacuum coating of the plastic parts.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A vacuum coating apparatus for plastic parts, comprising a housing (1), wherein a vacuum pump (8) is provided on one side of the outer side of the housing (1), and the vacuum end of the vacuum pump (8) is connected to the housing (1) via a pipe, a top cover (2) is hinged to the top of the housing (1), and a coating mechanism (9) is provided at the lower end of the inner side of the housing (1), characterized in that: A drive motor (10) is provided in the middle part of the box (1). The output end of the drive motor (10) is equipped with a drive rod (19) through a vertical plug-in assembly. A crossbar (20) is fixed on both sides of the drive rod (19). A plug shell (21) is provided at one end of the crossbar (20). A fixture (22) is provided at one end of the plug shell (21). An inner cavity (24) is opened at one end of the crossbar (20) near the plug shell (21). An L-shaped plate (25) is installed inside the inner cavity (24). A second reset spring (27) is installed at the lower end of the L-shaped plate (25). A wedge block (28) is provided on the side of the upper end of the L-shaped plate (25) near the plug shell (21). A limiting groove (23) is opened on the side of the plug shell (21) near the wedge block (28), and the wedge block (28) is adapted to the limiting groove (23).

2. The vacuum coating apparatus for plastic parts according to claim 1, characterized in that: A spring plate (29) is embedded at one end of the crossbar (20), and the spring plate (29) is fixedly connected to the crossbar (20). A guide rod (26) is fixed at the lower end of the inner cavity (24), and the L-shaped plate (25) is slidably connected to the guide rod (26).

3. The vacuum coating apparatus for plastic parts according to claim 1, characterized in that: The vertical insertion assembly includes an inner plate (11), a square post (12), and a insertion tube (13). The square post (12) is integrally formed on the top of the inner plate (11). The insertion tube (13) has a square groove (14) inside, and the square groove (14) is adapted to the square post (12). The bottom of the inner plate (11) is fixed to the output end of the drive motor (10), and the top of the insertion tube (13) is fixedly connected to the drive rod (19).

4. The vacuum coating apparatus for plastic parts according to claim 3, characterized in that: The inner disc (11) has an annular groove (15) on its outside. The insertion tube (13) has several side cavities (16) evenly distributed along the annular groove (15) on its inside. The side cavities (16) are installed in sequence facing the annular groove (15) with a first reset spring (17) and a limiting ball (18) in sequence. The limiting ball (18) is adapted to the annular groove (15).

5. The vacuum coating apparatus for plastic parts according to claim 1, characterized in that: The box (1) has four corners of the lower end face with a base column (5). The lower end of the base column (5) is fitted with an adjusting screw (6) by thread. The lower end of the adjusting screw (6) is connected to a support plate (7).

6. The vacuum coating apparatus for plastic parts according to claim 1, characterized in that: The top cover (2) is provided with a handle (3) on its upper end face, and the handle (3) is connected to the top cover (2). The front end face of the box (1) is provided with a window (4), and the window (4) is connected to the box (1).

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