Pitch-variable vacuum coating hanger

Abstract

A pitch-variable vacuum coating hanger is characterized by comprising a fixed disc, a variable column, a rotating shaft and a base, a motor mounting plate is fixed above a groove formed in the middle of the base through screws, a motor is fixed below the mounting plate through bolts, an output shaft is arranged at the output end of the motor, a transverse pin is arranged on the output shaft, and a rotary shaft is arranged on the transverse pin. An opening groove is formed in the lower portion of the rotating shaft, the transverse pin is clamped in the opening groove, clamping keys are symmetrically arranged on the two sides of the rotating shaft, the center of the fixing disc is fixedly connected with the fixing column, a round hole is formed in the center of the fixing column, key clamping grooves are symmetrically formed in the inner circle face of the round hole, and key clamping grooves are symmetrically formed in the inner circle face of the variable column. The included angle between the hanging rack rod and the penetrating rod is 90 degrees, the hanging rack design aims at improving the flexibility and efficiency in the film coating process, the distance between the hanging racks is adjusted to adapt to products of different sizes, and meanwhile the uniformity and quality of film coating are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of vacuum coating device for metal watch straps, specifically relating to a vacuum coating hanger with variable pitch. Background Technology

[0002] In watchmaking, the surface treatment of the watch band is a crucial step. To improve the hardness, wear resistance, and aesthetics of the watch band surface, a surface coating treatment is usually required. In traditional coating processes, the distance between the fixing discs of the coating holder is fixed, and users cannot adjust the number of holders according to the length and size specifications of their products. This may lead to wasted resources or reduced production efficiency. In addition, existing rotating holders are prone to slippage during production, increasing the difficulty of coating and affecting product quality and the coating effect.

[0003] To overcome the aforementioned technical problems, after a long period of research and based on practical considerations, the applicant hereby discloses a variable pitch vacuum coating rack. This rack design aims to improve the flexibility and efficiency of the coating process, adapting to products of different sizes by adjusting the rack spacing, while ensuring the uniformity and quality of the coating. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum coating hanger with variable pitch to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A variable pitch vacuum coating hanger, characterized by comprising: a fixed plate 2, a variable column 4, a rotating shaft 5, and a base 13. A motor mounting plate 9 is fixed above a groove in the center of the base 13 by screws 10. A motor 12 is fixed below the mounting plate 9 by bolts 11. The output end of the motor 12 has an output shaft 15 with a horizontal pin 8. An opening groove 7 is provided below the rotating shaft 5, and the horizontal pin 8 is engaged within the opening groove 7. Keys 17 are symmetrically arranged on both sides of the rotating shaft 5. The center of the fixed plate 2 is fixedly connected to the fixed column 3, and the center of the fixed column 3 has a circular hole. 21. The inner circular surface of the circular hole 21 is symmetrically provided with a keyway 20. The inner circular surface of the variable column 4 is also symmetrically provided with a keyway 20. The keyway 20 of the inner circular surfaces of the fixed column 3 and the variable column 4 are sleeved on the keyway 17. The fixed disk 2 is provided with several through holes 19 near its outer edge. The through holes 19 are provided with a hanging rod 1. The hanging rod 1 and the through rod 16 are connected as a whole and a U-shaped groove 6 is provided in the middle. The included angle between the hanging rod 1 and the through rod 16 is 90 degrees. The groove in the middle of the base 13 is provided with several heat dissipation holes 14. The center of the rotating shaft 5 is a hollow structure 18.

[0007] Preferably, the outer diameter of the variable column 4 is equal to the outer diameter of the fixed column 3, and the inner diameter of the circular hole 21 is equal to the inner diameter of the variable column 4.

[0008] Preferably, the width of the opening groove 7 is equal to the outer diameter of the cross pin 8.

[0009] Preferably, the wall thickness of the rotating shaft 5 is 2mm.

[0010] Preferably, the length of the variable column 4 is made to be between 10-60mm as needed, and the length of the fixed column 3 is 10mm.

[0011] Compared with the prior art, this utility model provides a vacuum coating hanger with variable pitch, which has the following advantages:

[0012] This rack design aims to improve flexibility and efficiency in the coating process by adjusting the rack spacing to accommodate products of different sizes, while ensuring the uniformity and quality of the coating. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a cross-sectional structural diagram of a vacuum coating hanger with variable pitch according to the present invention.

[0015] Figure 2 This is a three-dimensional schematic diagram of the rotating shaft 5 in the variable pitch vacuum coating hanger of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the combination of the fixed disk 2 and the fixed column 3 in a vacuum coating hanger with variable pitch according to this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the variable column 4 in the variable pitch vacuum coating hanger of this utility model.

[0018] Figure 5 This is a three-dimensional schematic diagram of the combination of the hanger rod 1, the fixing plate 2, and the fixing column 3 in a vacuum coating hanger with variable pitch according to this utility model. Figure 1 .

[0019] Figure 6 This is a three-dimensional schematic diagram of the combination of the hanger rod 1, the fixing plate 2, and the fixing column 3 in a vacuum coating hanger with variable pitch according to this utility model. Figure 2 .

[0020] In the diagram: 1. Hanging rod, 2. Fixing plate, 3. Fixing column, 4. Variable column, 5. Rotating shaft, 6. U-shaped groove, 7. Opening groove, 8. Horizontal pin, 9. Mounting plate, 10. Screw, 11. Bolt, 12. Motor, 13. Base, 14. Heat dissipation hole, 15. Output shaft, 16. Through rod, 17. Locking key, 18. Hollow structure, 19. Through hole, 20. Locking key groove, 21. Round hole. 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] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-6 This utility model provides a technical solution:

[0025] A variable pitch vacuum coating hanger, characterized by comprising: a fixed plate 2, a variable column 4, a rotating shaft 5, and a base 13. A motor mounting plate 9 is fixed above a groove in the center of the base 13 by screws 10. A motor 12 is fixed below the mounting plate 9 by bolts 11. The output end of the motor 12 has an output shaft 15 with a horizontal pin 8. An opening groove 7 is provided below the rotating shaft 5, and the horizontal pin 8 is engaged within the opening groove 7. Keys 17 are symmetrically arranged on both sides of the rotating shaft 5. The center of the fixed plate 2 is fixedly connected to the fixed column 3, and the center of the fixed column 3 has a circular hole. 21. The inner circular surface of the circular hole 21 is symmetrically provided with a keyway 20. The inner circular surface of the variable column 4 is also symmetrically provided with a keyway 20. The keyway 20 of the inner circular surfaces of the fixed column 3 and the variable column 4 are sleeved on the keyway 17. The fixed disk 2 is provided with several through holes 19 near its outer edge. The through holes 19 are provided with a hanging rod 1. The hanging rod 1 and the through rod 16 are connected as a whole and a U-shaped groove 6 is provided in the middle. The included angle between the hanging rod 1 and the through rod 16 is 90 degrees. The groove in the middle of the base 13 is provided with several heat dissipation holes 14. The center of the rotating shaft 5 is a hollow structure 18.

[0026] In a preferred embodiment of this utility model, the outer diameter of the variable column 4 is equal to the outer diameter of the fixed column 3, and the inner diameter of the circular hole 21 is equal to the inner diameter of the variable column 4.

[0027] In a preferred embodiment of this utility model, the width of the opening groove 7 is equal to the outer diameter of the cross pin 8.

[0028] In a preferred embodiment of this utility model, the wall thickness of the rotating shaft 5 is 2mm.

[0029] In a preferred embodiment of this utility model, the length of the variable column 4 is made to vary from 10 to 60 mm as needed, and the length of the fixed column 3 is 10 mm.

[0030] The working principle and usage process of this utility model are as follows:

[0031] Arrange the components according to Figure 1 The structure shown is connected.

[0032] like Figure 1 As shown, we insert the through rod 16 into the bolt hole at one end of the watch strap, and the watch strap is thus suspended on the through rod 16 of the hanger rod 1. At the same time, we lock the end of the through rod 16 into the U-shaped groove 6 of the adjacent hanger rod 1, so that the watch strap will not fall off during the coating process.

[0033] During the coating process, watch straps vary in length. To improve production efficiency, we can replace the middle variable post 4, especially for shorter watch straps. In this way, the variable post 4 can be replaced with a shorter one, allowing one or more additional fixing discs 2 to be installed while maintaining the same total length of the coating hanger at the same height, thereby improving production efficiency.

[0034] Although embodiments of the present invention have been disclosed 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 vacuum coating hanger with variable pitch, characterized by: The system comprises a fixed plate (2), a variable column (4), a rotating shaft (5), and a base (13). A motor mounting plate (9) is fixed above a groove in the center of the base (13) by screws (10). A motor (12) is fixed below the mounting plate (9) by bolts (11). The motor (12) has an output shaft (15) at its output end, with a horizontal pin (8) on the output shaft (15). An opening groove (7) is located below the rotating shaft (5), and the horizontal pin (8) is engaged within the opening groove (7). Keys (17) are symmetrically arranged on both sides of the rotating shaft (5). The center of the fixed plate (2) is fixedly connected to the fixed column (3). A circular hole (21) is located in the center of the fixed column (3). The inner circular surface of the hole (21) is symmetrically provided with keyway groove (20), and the inner circular surface of the variable column (4) is also symmetrically provided with keyway groove (20). The keyway groove (20) on the inner circular surface of the fixed column (3) and the variable column (4) is sleeved on the keyway (17). The fixed plate (2) is provided with several through holes (19) near the outer edge. The through holes (19) are provided with hanging rods (1). The hanging rods (1) and the through rods (16) are connected as a whole and a U-shaped groove (6) is provided in the middle. The included angle between the hanging rods (1) and the through rods (16) is 90 degrees. The groove in the middle of the base (13) is provided with several heat dissipation holes (14). The center of the rotating shaft (5) is a hollow structure (18).

2. The variable pitch vacuum coating hanger according to claim 1, characterized in that: The outer diameter of the variable column (4) is equal to the outer diameter of the fixed column (3), and the inner diameter of the circular hole (21) is equal to the inner diameter of the variable column (4).

3. The variable pitch vacuum coating hanger according to claim 1, characterized in that: The width of the opening groove (7) is equal to the outer diameter of the cross pin (8).

4. The variable pitch vacuum coating hanger according to claim 1, characterized in that: The wall thickness of the shaft (5) is 2mm.

5. The variable pitch vacuum coating hanger according to claim 1, characterized in that: The length of the variable column (4) can be made in the range of 10-60mm as needed, and the length of the fixed column (3) is 10mm.

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