A shielding device for PVD coating

Abstract

This utility model relates to the field of PVD coating technology, specifically disclosing a masking device for PVD coating. The device includes a binding structure comprising a high-temperature resistant binding strap. An internal reinforcing rib has a flared groove at its center, and an internal rib is rotatably connected to it. A ram's horn ornament is mounted on the internal rib. A passive insert is rotatably mounted on a rotating frame on the upper surface of the high-temperature resistant binding strap and inserted into the ram's horn ornament slot. The passive insert connects to a masking cover. The front and rear ends of the high-temperature resistant binding strap are connected to a transfer frame with spring rods and hooks. The internal rib consists of a rod and a universal joint, with hexagonal screws at both ends. The masking cover is set according to the workpiece surface path, having a coating window and a groove flush with the workpiece. The device automatically adjusts the fixed position via the spring rod and hooks, improving fixing efficiency and simplifying loading and unloading operations. The angle of the masking cover is flexibly adjusted using the internal ribs and other structures, providing precise masking and preventing coating material from contaminating non-coating areas.

Description

Technical Field

[0001] This utility model relates to the field of PVD coating technology, specifically a masking device for PVD coating. Background Technology

[0002] In PVD (Physical Vapor Deposition) coating processes, the material source is vaporized into gaseous atoms or molecules, or partially ionized into ions, under vacuum. Through processes such as low-pressure gas deposition, a thin film with specific functions is deposited on the substrate surface. In actual production, not the entire surface of all products needs coating. For example, specific areas of certain products, such as certain parts of an electric toothbrush body, have specific requirements for film transparency. In these cases, a masking device is needed to precisely cover the areas that do not need coating, thus ensuring a clear separation between coated and uncoated areas, preventing coating material from contaminating uncoated areas, and avoiding quality problems such as coating spots.

[0003] Traditional shielding devices are mostly handmade, which not only consumes a lot of time and manpower in the design, manufacturing and assembly stages, but also exposes many problems in use. For example, the shielding fixture locks the product with bolts. When the installation position is too high or too low, it is difficult for workers to accurately adjust the product shielding position. Turning the bolts is inconvenient, so the shielding fixture must be disassembled and assembled together when the product is loaded or unloaded, which reduces work efficiency.

[0004] Therefore, this utility model provides a masking device for PVD coating to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a masking device for PVD coating, which solves the above problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a masking device for PVD coating, comprising: a binding structure, the binding structure including a high-temperature resistant binding strap, wherein the center of the reinforcing ribs inside the high-temperature resistant binding strap is provided with an upward-opening flared swing groove, the center of the inside of the high-temperature resistant binding strap is provided with a connecting inner rib that is rotatably inserted in the radial direction, and a ram's horn-shaped ornament is fixedly provided on the rod of the connecting inner rib in the area of ​​the swing groove, and a C-shaped rotating frame is fixedly provided vertically at the upper end of the swing groove on the upper surface of the high-temperature resistant binding strap, and a passive plug is rotatably provided on each rotating frame, and the lower end of the passive plug is inserted into the horn-shaped slot inside the ram's horn ornament.

[0007] Preferably, the high-temperature resistant binding strap is a T-shaped structure made of high-temperature resistant material and has several reinforcing ribs inside.

[0008] Preferably, the front and rear ends of the high-temperature resistant binding strap are connected to the adapter frame by bolts, and each adapter frame is fixedly provided with a spring rod with telescopic reset capability at its end, and each spring rod is rotatably connected to a hook at its output end.

[0009] Preferably, the connecting inner rib is composed of several rods and several universal joints, and the front and rear ends of the connecting inner rib are fixedly provided with hexagonal screws that are easy to rotate.

[0010] Preferably, the universal joint portion of the connecting inner rib is located between the reinforcing ribs of the high-temperature resistant binding strap.

[0011] Preferably, the upper ends of the passive plugs are all bolted to the top corner of the lower surface of a shield.

[0012] Preferably, the shielding cover is configured according to the surface path of the workpiece to be coated, and the surface of the shielding cover has a window for coating, and the surface of the shielding cover that contacts the workpiece to be coated has a groove that can be flush with the workpiece. Beneficial effects

[0013] This invention provides a masking device for PVD coating. Compared with the prior art, it has the following advantages:

[0014] (1) The masking device for PVD coating is equipped with a spring rod and a hook with telescopic reset capability. When fixing the binding structure, the spring rod can automatically adjust the position of the hook according to the actual position difference of the fixing point. Unlike traditional masking fixtures, it does not require the product to be locked with bolts. This avoids the inconvenience caused by poor installation position, greatly shortens the fixing time, and improves work efficiency. When loading and unloading the product, it does not need to be disassembled and assembled together with the masking fixture, which simplifies the operation process.

[0015] (2) The masking device for PVD coating, by setting connecting inner ribs, in conjunction with horn ornaments, passive plugs and rotating brackets, can flexibly adjust the angle of the masking cover by turning the inner hex head of the connecting inner rib with an internal hex wrench, so that it fits tightly against the surface of the workpiece. The masking position can be precisely adjusted according to the surface path of the workpiece. At the same time, the masking cover is set according to the surface path of the workpiece to be coated, and the surface in contact with the workpiece to be coated has a groove that can be flush with the workpiece, which further ensures the accuracy of masking, effectively prevents the coating material from contaminating the non-coating area, and reduces the occurrence of quality problems such as coating spots. Attached Figure Description

[0016] Figure 1 This is a perspective view of the external structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 This is a structural disassembly diagram of this utility model;

[0019] Figure 4 This is the utility model Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Binding structure; 11. High-temperature resistant binding strap; 111. Swing groove; 112. Turning frame; 12. Hook; 121. Spring rod; 122. Adapter frame; 13. Connecting inner rib; 131. Ram's horn ornament; 14. Shielding cover; 141. Passive plug-in. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 A masking device for PVD coating includes: a binding structure 1, which includes a high-temperature resistant binding strap 11. The high-temperature resistant binding strap 11 is a U-shaped structure made of high-temperature resistant material, and each reinforcing rib has an upwardly flared swing groove 111 at its center. The front and rear ends of the high-temperature resistant binding strap 11 are bolted to a transition frame 122, and each end of the transition frame 122 is fixedly provided with a spring rod 121 with telescopic reset capability. The output end of each spring rod 121 is rotatably connected to a hook 12. A connecting inner rib 13 is radially inserted and inserted at the center of the high-temperature resistant binding strap 11. The connecting inner rib 13 is composed of several rods and several universal joints, and the front and rear ends of the connecting inner rib 13 are fixedly provided with conveniently rotating internal hexagonal screw heads. A ram's horn-shaped ornament 131 is fixedly installed on the rod body of the connecting inner rib 13 in the area of ​​the swing groove 111. The universal joint of the connecting inner rib 13 is located between the reinforcing ribs of the high-temperature resistant binding strap 11. A C-shaped rotating frame 112 is fixedly installed vertically at the upper end of the swing groove 111 on the upper surface of the high-temperature resistant binding strap 11. A passive plug 141 is rotatably installed on each rotating frame 112. The lower end of the passive plug 141 is inserted into the angular slot inside the ram's horn ornament 131. The upper end of the passive plug 141 is bolted to the top corner of the lower surface of a shield 14. The shield 14 is set according to the surface path of the workpiece to be coated. The surface of the shield 14 has a window for coating. The surface of the shield 14 that contacts the workpiece to be coated has a groove that can be flush with the workpiece.

[0023] During operation, the workpiece to be coated is first hung on the coating rack. The binding structure 1 is wrapped around the outside of the workpieces in the same row. The angle and position of the shielding cover 14 are adjusted to correspond with the workpieces. The binding structure 1 is fixed to the fixing points around the coating rack by the hooks 12. The spring rod 121 will automatically adjust the position of the hooks 12 to complete the initial fixation. Next, the internal hex head of the connecting internal rib 13 is turned with an internal hex wrench. Due to its structural characteristics, the connecting internal rib 13 can rotate flexibly, which drives the ram's horn ornament 131 to rotate, thereby causing the passive plug 141 to rotate around the rotating frame 112. The angle of the shielding cover 14 is adjusted so that it fits tightly against the workpiece and accurately shields it. The shielding cover 14 is set according to the surface path of the workpiece. Its surface in contact with the workpiece has a flat groove and a coating window, which can accurately shield and prevent contamination. After the coating is completed, the connecting internal rib 13 is rotated in the opposite direction, the hooks 12 are released, the binding structure 1 and the shielding cover 14 are removed, and the work process ends.

[0024] In summary, by setting up a spring rod 121 with telescopic reset capability and a hook 12, when fixing the binding structure 1, the spring rod 121 can automatically adjust the position of the hook 12 according to the actual position difference of the fixing point. Unlike traditional shielding fixtures, it is not necessary to tighten the product with bolts, avoiding the inconvenience caused by poor installation position, greatly shortening the fixing time, improving work efficiency, and simplifying the operation process when loading and unloading the product without disassembling and assembling the shielding fixture as a whole. The connecting inner rib 13 is composed of a rod body and a universal joint, which works in conjunction with the ram's horn ornament. 131, passive plug-in 141, and rotating bracket 112: By using an Allen wrench to turn the Allen head of the connecting inner rib 13, the angle of the shielding cover 14 can be flexibly adjusted so that it fits tightly against the workpiece surface. The shielding position can be precisely adjusted according to the workpiece surface path. At the same time, the shielding cover 14 is set according to the surface path of the workpiece to be coated. The surface in contact with the workpiece to be coated has a groove that can be flush with the workpiece, which further ensures the accuracy of the shielding, effectively prevents the coating material from contaminating the non-coating area, and reduces the occurrence of quality problems such as coating spots.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] Working principle: During operation, the workpiece to be coated is first hung and positioned on the coating rack (the single support body does not rotate, but the whole frame can rotate). Then, the binding structure 1 is wrapped around the outside of the workpieces in the same row, and the angle and position of the shielding cover 14 on the high temperature resistant binding strap 11 are adjusted so that the shielding cover 14 corresponds to the workpiece to be coated. Then, the binding structure 1 is fixed to the appropriate fixing point around the workpiece coating rack by the hook 12. The spring rod 121 has the ability to extend and return, and can automatically adjust the position of the hook 12 according to the position difference of the actual fixing point, so as to complete the initial fixing of the binding structure 1 conveniently and quickly.

[0027] Next, use an Allen wrench to rotate the Allen screw heads at the front and rear ends of the connecting inner rib 13. Since the connecting inner rib 13 is composed of a rod and a universal joint, and the universal joint is located between the reinforcing ribs of the high-temperature resistant binding strap 11, the connecting inner rib 13 can rotate flexibly. When the connecting inner rib 13 rotates, the ram's horn ornament 131 on it rotates accordingly. The rotation of the ram's horn ornament 131 will drive the passive plug 141 inserted in its internal angle slot to rotate around the rotating frame 112. Since the upper end of the passive plug 141 is connected to the top corner of the lower surface of the shielding cover 14 by bolts, the rotation of the passive plug 141 can adjust the angle of the shielding cover 14, so that it fits more tightly with the surface of the workpiece to be coated, and the shielding position can be precisely adjusted according to the workpiece surface path.

[0028] The masking cover 14 is set according to the surface path of the workpiece to be coated. The surface of the masking cover 14 that contacts the workpiece to be coated has a groove that can be flush with the workpiece to further ensure the accuracy of masking. The surface of the masking cover 14 has a window for coating. During the coating process, the coating material will be deposited on the surface of the workpiece through the window. The masking cover 14 can effectively block the areas that do not need to be coated, prevent the coating material from contaminating the non-coated areas, and avoid quality problems such as coating spots. After the coating operation is completed, the connecting inner rib 13 is rotated in the opposite direction to restore the masking cover 14 to a state that is easy to disassemble. Then, the hook 12 is released, and the binding structure 1 and the masking cover 14 are removed from the workpiece to complete the entire workflow.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A masking device for PVD coating, characterized in that, include: The binding structure (1) includes a high-temperature resistant binding strap (11). The center of the reinforcing rib inside the high-temperature resistant binding strap (11) is provided with an upward-opening swing groove (111). The center of the inside of the high-temperature resistant binding strap (11) is provided with a connecting inner rib (13) that rotates radially. A ram's horn-shaped ornament (131) is fixedly provided on the rod of the connecting inner rib (13) in the area of ​​the swing groove (111). A C-shaped rotating frame (112) is fixedly provided vertically at the upper end of the swing groove (111) on the upper surface of the high-temperature resistant binding strap (11). A passive plug (141) is rotatably provided on each rotating frame (112). The lower end of the passive plug (141) is inserted into the horn-shaped slot inside the ram's horn ornament (131).

2. The masking device for PVD coating according to claim 1, characterized in that: The high-temperature resistant binding strap (11) is a shaped structure made of high-temperature resistant material and has several reinforcing ribs inside.

3. A masking device for PVD coating according to claim 1, characterized in that: The front and rear ends of the high-temperature resistant binding strap (11) are connected to the adapter frame (122) by bolts, and each adapter frame (122) has a spring rod (121) with telescopic reset capability fixedly installed at its end, and each spring rod (121) has a hook (12) rotatably connected to its output end.

4. A masking device for PVD coating according to claim 1, characterized in that: The connecting inner rib (13) is composed of several rods and several universal joints, and the front and rear ends of the connecting inner rib (13) are fixedly provided with internal hexagonal screws that are easy to rotate.

5. A masking device for PVD coating according to claim 1, characterized in that: The universal joint portion of the connecting inner rib (13) is located between the reinforcing ribs of the high-temperature resistant binding strap (11).

6. A masking device for PVD coating according to claim 1, characterized in that: The upper ends of the passive plug-in (141) are all bolted to the top corner of the lower surface of a shield (14).

7. A masking device for PVD coating according to claim 6, characterized in that: The shielding cover (14) is set according to the surface path of the workpiece to be coated, and the surface of the shielding cover (14) is provided with a window for coating, and the surface of the shielding cover (14) that contacts the workpiece to be coated is provided with a groove that can be flush with the workpiece.

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