Suspension device

Abstract

The utility model provides a suspension device which comprises a first jig part and a second jig part which are spliced and fixed through a locking component, and the first jig part and the second jig part form a vertical cage frame structure and a transverse blocking piece structure. Jig seats are fixedly arranged on the upper surfaces of all the transverse blocking piece structures, all the jig seats are vertically arranged upwards in the length direction of the vertical cage frame structure, and all the jig seats are located in the center area of the cage frame structure. According to the suspension device, through the vertical cage frame structure and the transverse blocking piece structure, the local shielding effect on sputtering particles is formed on the different surfaces of the film coating piece on the vertically-arranged jig seat, so that the particle density in different directions is balanced, and the film thickness uniformity of the different surfaces of the film coating piece is improved.

Description

Technical Field

[0001] This application relates to the field of vacuum coating technology, and more specifically to a suspension device for loading coated parts for vacuum coating. Background Technology

[0002] In the vacuum coating production of small workpieces, in order to achieve large-scale coating processing in a single furnace, devices such as racks are usually used to load coating parts in large quantities, and a rotating mechanism inside the vacuum furnace is used to achieve uniform coating on each surface of the workpiece.

[0003] In conventional vacuum furnaces, the targets used for coating are typically arranged vertically, with their length roughly matching the furnace's vertical height. The hangers for loading the parts are mounted on a rotating mechanism, revolving or rotating around a vertical axis. The surface of the part to be coated is usually aligned with the target to achieve an effective coating. For single-sided or symmetrically coated workpieces, current hangers can meet the coating uniformity requirements. However, for asymmetrical, multi-angled, or complex curved workpieces requiring 3D surface coating, especially when high color difference between different surfaces is required, uneven coating is prone to occur when using conventional hanging devices. In the vacuum coating and coloring process for decorative workpieces, even micron-level differences in film thickness can lead to significant color variations. Therefore, the current technology's problem of film thickness uniformity for multi-sided coated workpieces results in a decrease in product yield.

[0004] Therefore, researching novel suspension devices to improve the coating uniformity of coated parts has become an urgent problem for those skilled in the art. Utility Model Content

[0005] In order to overcome the defects of the prior art, this application provides a suspension device for loading coated parts for vacuum coating. By improving the structural and positional design of the fixture seat and fixture parts, the uniformity of the film thickness is balanced by utilizing the shielding effect of the fixture parts on different surfaces of the coated parts.

[0006] Specifically, the suspension device provided in this application includes a first fixture and a second fixture that cooperate with each other. The first fixture and the second fixture are assembled and fixed by a locking member. The first fixture includes a first left side bar and a first right side bar arranged in parallel. The second fixture includes a second left side bar and a second right side bar arranged in parallel. The first left side bar, the first right side bar, the second left side bar, and the second right side bar are arranged in parallel to each other to form a vertical cage structure. A number of first baffles arranged at intervals are connected between the first left side bar and the first right side bar. A number of second baffles arranged at intervals are connected between the second left side bar and the second right side bar. Each first baffle is assembled with another second baffle in a corresponding position to form a transverse baffle structure. A fixture seat for placing the coated part is fixedly provided on the upper surface of each transverse baffle structure. Each fixture seat is vertically upward along the length of the vertical cage structure and is located in the central area of ​​the cage structure.

[0007] In one alternative implementation, at least one end of the suspension device is provided with a locking member, which includes a cooperating connecting strip and a locking assembly. The connecting strip is laterally disposed at the end of the first fixture or the second fixture, and the locking assembly is disposed at the opposite end of the second fixture or the first fixture. The locking assembly laterally engages and locks the connecting strip.

[0008] In one alternative implementation, the locking assembly includes an upper connecting plate and a lower connecting plate that extend laterally in parallel. The ends of the upper connecting plate and the lower connecting plate are locked together by fasteners. The upper connecting plate and the lower connecting plate pass through the upper surface and the lower surface of the connecting strip, respectively, and the fasteners are locked to the outer side of the connecting strip.

[0009] In one alternative implementation, locking components are provided at both the upper and lower ends of the suspension device.

[0010] In one alternative implementation, a fixture base is fixedly disposed on the upper surface of the first baffle. The upper part of the fixture base is provided with a placement groove for placing the coated part. The coated part is detachably fixed to the placement groove by a shielding member. The fixture base is provided with a spring piece with a latch. The bottom of the shielding member is provided with a latching post with a latching groove. The latching post passes through the latching post of the fixture base and the spring piece. The latching groove cooperates with the latching post of the spring piece to realize the detachable fixation of the shielding member on the fixture base.

[0011] In one alternative implementation, the fixture base includes a fixing plate, a positioning plate, a sliding plate, and a base. The fixing plate is fixed to the upper surface of the first stop plate, the positioning plate is fixed to the upper surface of the fixing plate, the sliding plate is slidably disposed on the upper surface of the positioning plate, and the base is slidably disposed on the upper surface of the sliding plate. The bottom of the base is provided with a sliding groove that mates with the sliding plate, and the upper part of the base is provided with a placement groove. The positioning plate is provided with a spring. The locking post of the coated part passes through the base, the sliding plate, and the positioning plate in sequence, and the locking groove of the locking post engages with the spring.

[0012] In one alternative implementation, the fixing plate is provided with a clearance window, and the positioning plate is bent downward at the position corresponding to the clearance window to provide a spring piece. The free end of the spring piece is located inside the clearance window, and the snap-fit ​​of the spring piece extends along the length direction of the positioning plate. The sliding plate is provided with an elongated hole at the position corresponding to the snap-fit ​​of the spring piece. The length direction of the elongated hole is consistent with the extension direction of the snap-fit ​​of the spring piece. The base has a first through hole in the vertical direction for the snap-fit ​​post to pass through. The snap-fit ​​post of the shielding member passes through the first through hole, the elongated hole and the snap-fit ​​in sequence, and the snap-fit ​​groove and the snap-fit ​​are engaged.

[0013] In one alternative implementation, the lower part of the base is provided with a sliding groove that slides with the slider, both ends of the slider are bent downward to form a retaining edge, and one end of the fixing plate is recessed inward to form an operating groove, the width of the operating groove being greater than the width of the retaining edge.

[0014] In one alternative implementation, the first baffle is provided with a clearance groove, the position of which corresponds to the position of the clearance window of the fixed plate.

[0015] In one alternative implementation, the upper end of the suspension device is provided with an upper rod, and the lower end of the suspension device is provided with a lower rod, with the upper rod and the lower rod being coaxially arranged.

[0016] The technical solution provided by the aforementioned implementation method has at least the following beneficial effects:

[0017] (1) The suspension device of this application uses a vertical cage structure and a horizontal baffle structure to form a local shielding effect on the different surfaces of the coated parts on the vertically set fixture seat to shield the sputtered particles, balance the particle density in different directions, and improve the uniformity of film thickness on different surfaces of the coated parts.

[0018] (2) The suspension device of this application adopts a first fixture and a second fixture in a modular form, which are detachably connected by a locking mechanism. This makes it easy to load the coated parts onto the fixture seat which is set in the same direction as the fixture, avoiding obstruction and interference from the fixture structure, and improving the loading and unloading efficiency and ease of operation of the coated parts.

[0019] (3) The fixture base and shielding part of this application adopt an elastic snap-fit ​​method. During assembly, it is only necessary to align the snap pin with the hole of each layer and press it down vertically. The snap slot will automatically embed into the spring clip to complete the locking. During disassembly, the spring clip can be elastically deformed and released by moving the stop edge horizontally. The whole process does not require tools and there is no risk of loose screws. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the suspension device in a separated state provided in one embodiment of this application;

[0022] Figure 2 A side view of the suspension device in the locked state according to an embodiment of this application;

[0023] Figure 3 A schematic diagram of the vertical cage structure and the horizontal baffle structure of the suspension device in the locked state according to an embodiment of this application;

[0024] Figure 4 A schematic diagram of the bottom structure of the suspension device in the locked state according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the jig base assembly structure provided in one embodiment of this application;

[0026] Figure 6 Bottom view of the jig base assembly structure provided in one embodiment of this application;

[0027] Figure 7 Exploded view of the fixture base and shielding member provided in one embodiment of this application;

[0028] Figure 8 This is a side view of the existing mounting structure;

[0029] Figure 9 A top view of the internal structure of a vacuum coating furnace;

[0030] Figure 10 This is a schematic diagram of a coated part structure as a specific example of this application;

[0031] Figure 11 This is a schematic diagram of the structure of a rotating device inside a vacuum furnace, as a specific example of this application.

[0032] Figure 12 This is a schematic diagram of the suspension device in use, as a specific example of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. First jig; 2. Second jig; 3. Locking component; 4. Vertical cage structure; 5. Horizontal baffle structure; 6. Coated part; 7. Jig base; 8. Shielding component; 9. Upper rod; 10. Lower rod; 101. First left side bar; 102. First right side bar; 103. First baffle; 1031. Clearance groove; 201. Second left side bar; 202. Second right side bar; 203. Second baffle; 31. Connecting bar; 32. Locking assembly; 321 322. Upper connecting plate; 323. Lower connecting plate; 324. Fastener; 601. Through hole; 71. Fixing piece; 711. Clearance window; 712. Operating slot; 72. Positioning piece; 721. Spring piece; 722. Bayonet; 73. Sliding piece; 731. Long hole; 732. Edge retaining edge; 74. Base; 741. Placement slot; 742. Sliding groove; 743. First through hole; 744. Second through hole; 801. Locking post; 802. Locking groove; 803. Cover plate;

[0035] 100, Hanging bar; 200, Hanging rack; 300, Vacuum furnace; 400, Target material; 500, Rotating mechanism; 510, Rotating disk; 520, Rotating base; 600, Suspension device; 61, Top surface; 62, Long side wall; 63, Short side wall. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0038] Furthermore, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure as shown in the attached drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the structure.

[0039] Combination Figure 8As shown, a current suspension structure includes a long, narrow hanging strip 100, with several fixture seats 7 arranged vertically on the outer side of the hanging strip 100, facing outwards. The part 6 to be vacuum coated is fixed to the outer surface of the fixture seat 7 by a shielding member 8.

[0040] Combined Figure 9 As shown, in the vacuum furnace 300 used for vacuum coating, the target 400 for magnetron sputtering is vertically mounted on the inner wall of the furnace cavity. A rotating mechanism 500 is installed inside the vacuum furnace 300 to vertically suspend the hanging bar 100, which carries the coated part, on a hanger 200. The hanger 200 is then mounted on the rotating mechanism 500, allowing it to both revolve and rotate. During the coating process, the coated part 6 revolves with the hanging bar 100 while simultaneously rotating around its own axis. When the target is energized to excite plasma, sputtered particles fly towards the coated part 6 in a direction perpendicular to the target surface, depositing a film layer on the front side of the coated part 6.

[0041] However, the applicant discovered that when multi-faceted three-dimensional coating is required on coated parts, and high uniformity of each film layer is demanded, this traditional method is difficult to achieve the desired results. The film layer formed using the traditional method exhibits thickness differences between the front side facing the target and the back and sides that are not directly facing the target. Specifically, when particles excited by magnetron sputtering of a vertically positioned target are emitted towards the central rack in the vacuum furnace, the vertical positioning of the target causes differences in film thickness between the upper and lower surfaces of each coated part and the left and right sides, resulting in color variations in the formed film and making it difficult to meet the requirement of high consistency.

[0042] To solve the above problems, combined with Figures 1 to 7 As shown, in order to overcome the defects of the prior art, this application provides a suspension device for loading coated parts for vacuum coating. By improving the structural position design of the fixture seat 7 and the fixture, the uniformity of the film thickness is balanced by the shielding effect of the fixture on different surfaces of the coated part 6.

[0043] Specifically, combined Figures 1 to 3As can be seen, in one embodiment, the suspension device includes a first fixture 1 and a second fixture 2 that cooperate with each other. The first fixture 1 and the second fixture 2 are assembled and fixed by a locking member 3. The first fixture 1 includes a first left side strip 101 and a first right side strip 102 arranged in parallel, and the second fixture 2 includes a second left side strip 201 and a second right side strip 202 arranged in parallel. The first left side strip 101, the first right side strip 102, the second left side strip 201, and the second right side strip 202 are arranged in parallel to each other to form a vertical cage structure 4. The first left side strip 101... A number of first baffles 103 arranged at intervals are connected between the first right side strip 102 and the second left side strip 201 and the second right side strip 202. A number of second baffles 203 arranged at intervals are connected between the second left side strip 201 and the second right side strip 202. Each first baffle 103 is spliced ​​with another second baffle 203 in a corresponding position to form a transverse baffle structure 5. A fixture seat 7 for placing the coated part 6 is fixedly provided on the upper surface of each transverse baffle structure 5. Each fixture seat 7 is vertically upward along the length direction of the vertical cage structure 4. Each fixture seat 7 is located in the central area of ​​the cage structure.

[0044] Understandably, in the aforementioned traditional hanging strip fixture structure, the coating component 6 faces the target material only on one side. The vertical cage structure 4 of this application not only provides a stable support frame for the suspension device, but also, through the coordinated arrangement of the transverse baffles and the central fixture seat 7, enables the coating component 6 to precisely control the particle deposition flux at different angles and in different areas during its revolution and rotation. This is achieved through the dynamic shielding effect formed by the vertical partial shielding of each side strip and the transverse partial shielding of the baffle structure, thus simultaneously achieving a highly consistent coating effect on the front, back, and sides.

[0045] More specifically, since the transverse baffle structures 5 are arranged at intervals along the length of the vertical cage, and the jig seats 7 on each transverse baffle are oriented in the same direction, and in conjunction with the partial shielding of the vertical cage structure 4, during the coating process, the coating part 6 on the jig seat 7 can be shielded by its own position, the upper transverse baffle structure 5 and the vertical cage structure 4, which can prevent the excessive deposition of sputtered particles excited by the oblique angle target on the side surface of the coating part 6, and avoid excessive film thickness caused by the side surface of the coating part 6, thereby ensuring that the film thickness of the side surface and the vertical surface area is uniform.

[0046] Combination Figure 1 and Figure 2 As shown in this application, at least one end of the suspension device is provided with a locking member 3. The locking member 3 includes a cooperating connecting strip 31 and a locking component 32. The connecting strip 31 is laterally disposed at the end of the first fixture 1 or the second fixture 2, and the locking component 32 is disposed at the opposite end of the second fixture 2 or the first fixture 1. The locking component 32 laterally engages and locks the connecting strip 31.

[0047] In this embodiment, locking components 3 are provided at both the upper and lower ends of the suspension device. The locking components 3 at both ends enable stable assembly and rapid disassembly of the first fixture 1 and the second fixture 2, significantly improving mold-changing efficiency. In other embodiments, the locking components 3 may be provided only at the upper or lower end, balancing structural stability and ease of assembly.

[0048] Understandably, to achieve the detachable assembly of the first fixture 1 and the second fixture 2, the connecting strip 31 and the locking assembly 32 of the locking member 3 are respectively arranged at corresponding positions on different fixtures. For example, at the same end of the suspension device, such as the same upper end, the connecting strip 31 is located at the upper end of the first fixture 1, and the locking assembly 32 is correspondingly located at the upper end of the second fixture 2. The two cooperate to lock together to achieve precise alignment and rigid connection. In another embodiment, the connecting strip 31 can be located at the end of the second fixture 2, while the locking assembly 32 is located at the opposite end of the first fixture 1, achieving the same detachable connection.

[0049] It is understandable that the connecting strip 31 and locking assembly 32 of the locking component 3 can adopt various mechanical connection methods such as snap-fit, magnetic attraction or threaded tightening.

[0050] Combination Figure 3 and Figure 4 As shown, one embodiment provides an implementation of the locking assembly 32. Specifically, the locking assembly 32 includes an upper connecting plate 321 and a lower connecting plate 322 that extend laterally in parallel. The ends of the upper connecting plate 321 and the lower connecting plate 322 are locked together by fasteners 323. The upper connecting plate 321 and the lower connecting plate 322 pass through the upper and lower surfaces of the connecting strip 31, respectively, and the fasteners 323 are locked to the outer side of the connecting strip 31.

[0051] Specifically, in this embodiment, the fastener 323 adopts a bolt structure, which uses the cooperation of bolts and nuts to achieve the connection and fixation of the upper connecting plate 321 and the lower connecting plate 322.

[0052] With the above-mentioned locking component 32 structure, the upper connecting plate 321 and the lower connecting plate 322 form a bidirectional clamping on the connecting strip 31, which can prevent vertical loosening and shaking. At the same time, the pre-tightening force applied by the fastener 323 ensures that the connecting strip 31 maintains zero gap fit under the action of the centrifugal force of revolution and the torque of rotation.

[0053] It is understandable that, such as Figure 3 As shown, to enhance lateral stability, each locking assembly 32 is provided with two pairs of upper connecting plates 321 and lower connecting plates 322 to form a robust lateral connection.

[0054] Combination Figure 5 and Figure 6As shown, in this embodiment, the fixture base 7 is fixedly disposed on the upper surface of the first baffle 103. The upper part of the fixture base 7 is provided with a placement groove 741 for placing the coated part 6. The coated part 6 is detachably fixed to the placement groove 741 by a shielding member 8. The fixture base 7 is provided with a spring piece 721, and the spring piece 721 is provided with a slot 722. The bottom of the shielding member 8 is provided with a locking post 801, and the locking post 801 is provided with a locking groove 802. The locking post 801 passes through the fixture base 7 and the slot 722 of the spring piece 721. The locking groove 802 cooperates with the slot 722 of the spring piece 721 to realize the detachable fixation of the shielding member 8 on the fixture base 7.

[0055] It is understandable that by setting the jig seat 7 on the first baffle 103, when the first jig 1 and the second jig 2 are separated to load or unload the coated part 6, the jig seat 7 moves out synchronously with the first jig 1, avoiding interference between the shielding part 8 and the second jig 2, and ensuring operational safety and assembly accuracy.

[0056] Combined Figure 7 As shown, in this embodiment, the fixture base 7 includes a fixing plate 71, a positioning plate 72, a sliding plate 73, and a base 74. The fixing plate 71 is fixed to the upper surface of the first baffle 103, the positioning plate 72 is fixed to the upper surface of the fixing plate 71, the sliding plate 73 is slidably disposed on the upper surface of the positioning plate 72, and the base 74 is slidably disposed on the upper surface of the sliding plate 73. The bottom of the base 74 is provided with a sliding groove 742 that cooperates with the sliding plate 73, and the upper part of the base 74 is provided with a placement groove 741. The positioning plate 72 is provided with a spring piece 721. The locking post 801 of the shielding member 8 passes through the base 74, the sliding plate 73, and the positioning plate 72 in sequence, and the locking groove 802 of the locking post 801 engages with the spring piece 721.

[0057] Understandably, the quick assembly, disassembly, and precise positioning of the shielding component 8 on the base 74 are achieved through the cooperation of the locking post 801 and the locking slot 722 of the spring piece 721; the sliding cooperation between the sliding piece 73 and the positioning piece 72 allows the base 74 to be finely adjusted in the horizontal plane so that the locking post 801 of the shielding component 8 can be inserted into the locking slot 722 of the spring piece 721 for locking and fixing; and the rigid connection between the fixing piece 71 and the first stop piece 103 ensures that the entire fixture base 7 maintains zero offset during high-speed revolution and rotation.

[0058] Specifically, in this embodiment, the fixing piece 71 is provided with a clearance window 711, and the positioning piece 72 is bent downward at the corresponding position of the clearance window 711 to provide a spring piece 721. The free end of the spring piece 721 is located inside the clearance window 711. The slot 722 of the spring piece 721 extends along the length direction of the positioning piece 72. The sliding piece 73 is provided with an elongated hole 731 at the corresponding position of the slot 722 of the spring piece 721. The length direction of the elongated hole 731 is consistent with the extension direction of the slot 722 of the spring piece 721. The base 74 has a first through hole 743 through which the locking post 801 passes in the vertical direction. The locking post 801 of the shielding member 8 passes through the first through hole 743, the elongated hole 731 and the slot 722 in sequence, and the slot 802 engages with the slot 722.

[0059] Understandably, in order to facilitate the insertion of the locking post 801 to achieve the locking and fixing of the slot 802 and the locking post 722, the front opening of the locking post 722 of the spring piece 721 is larger than the outer diameter of the locking post 801, and the rear opening of the locking post 722 is narrowed to be slightly smaller than the outer diameter of the locking post 801, and is located between the outer diameter of the locking post 801 and the width of the slot 802, so as to ensure the guiding performance during locking and the self-locking stability of the slot 802 and the locking post 722.

[0060] Combined Figure 6 and Figure 7 In this embodiment, the lower part of the base 74 is provided with a sliding groove 742 that slides with the slider 73. The two ends of the slider 73 are bent downward to form a retaining edge 732. One end of the fixing piece 71 is recessed inward to form an operating groove 712. The width of the operating groove 712 is greater than the width of the retaining edge 732.

[0061] The operating groove 712 is directly opposite the stop edge 732 of the slider 73, which makes it easy for the finger to move the slider 73 to adjust the position of the base 74. The stop edge 732 and the groove 742 work together to limit the slider 73 and prevent it from shaking or loosening under vibration. The coaxial design of the window 711, the elongated hole 731 and the first through hole 743 ensures that the insertion path of the locking post 801 is not skewed, further improving the insertion and positioning accuracy of the shielding member 8.

[0062] Combination Figure 6 As shown, in this embodiment, in order to avoid interference with the spring piece 721 and the locking post 801, the first baffle 103 is provided with a clearance groove 1031, and the position of the clearance groove 1031 corresponds to the position of the clearance window 711 of the fixing piece 71.

[0063] In this embodiment, the shielding member 8 also includes a cover plate 803 for shielding the areas of the coated member 6 that do not require coating, and the locking post 801 of the shielding member 8 extends downward from the lower surface of the cover plate 803.

[0064] Combination Figure 7In this embodiment, the coated component 6 has a through hole 601 for the passing of the locking post 801, and the placement groove 741 of the base 74 is provided with a second through hole 744. The second through hole 744 and the first through hole 743 are coaxially arranged. During use, the locking post 801 of the shielding component 8 also simultaneously passes through the through hole 601 of the coated component 6 and the second through hole 744 of the placement groove 741, thus achieving proper loading of the coated component 6.

[0065] However, the above examples are only for illustrating the implementation process of the technical solution of this application. In other embodiments, it is not limited that the coated part 6 must have a perforation 601, nor is it limited that the placement groove 741 must have a second through hole 744. The coated part 6 without a perforation 601 can also be placed in the placement groove 741 of the base 74. The shielding member 8 covers and fixes the coated part 6 by the cover plate 803, and the coated part 6 can also be stably loaded by the elastic connection of the locking post 801.

[0066] Combination Figures 1 to 3 As shown in this application, the upper end of the suspension device is provided with an upper rod 9, and the lower end of the suspension device is provided with a lower rod 10. The upper rod 9 and the lower rod 10 are coaxially arranged.

[0067] Specifically, the upper rod 9 or the lower rod 10 can be disposed on the same fixture or separately on the ends of different fixtures. For example, both the upper rod 9 and the lower rod 10 can be disposed on the ends of the first fixture 1 or the second fixture 2, or the upper rod 9 can be disposed on the end of the first fixture 1 and the lower rod 10 on the end of the second fixture 2. The function of the upper rod 9 and the lower rod 10 is to facilitate the vertical engagement of the suspension device with the rotating mechanism inside the vacuum furnace, so as to achieve the effects of revolution and rotation.

[0068] To fully illustrate the structure and beneficial effects of the suspension device of this application, a specific implementation example is provided. (Combined with...) Figure 10 As shown, this example uses a long strip-shaped decorative piece as the coating part 6 to be coated. The area to be coated includes the top surface 61 located at the top and the long sidewall 62 and short sidewall 63 located on the sidewall.

[0069] The specific usage method is as follows: Place the coated parts 6 one by one into the positioning slots of each fixture seat 7, insert the corresponding shielding parts 8 into the fixture seat 7, and use the slider 73 to fine adjust the base 74 so that the locking post 801 of the shielding part 8 enters the buckle of the spring piece 721 to realize the loading and fixing of the coated parts 6; assemble the first fixture part 1 and the second fixture part 2 relative to each other, and lock them together and fix them by the locking member 3; finally, align the lower rod 10 of the suspension device 600 with the rotating base 520 on the vacuum furnace rotating mechanism, and push it in vertically to complete the assembly for vacuum coating treatment; after vacuum coating treatment, remove the suspension device 600 and unlock the first fixture part 1 and the second fixture part 2, and the coated parts 6 that have completed vacuum coating treatment can be taken out.

[0070] Combination Figure 11 and 12 As shown in the specific example, several rotating disks 510 are uniformly rotatable circumferentially on the upper surface of the rotating mechanism 500 inside the vacuum furnace of the vacuum coating equipment. Several rotating bases 520 are uniformly arranged on the outer periphery of the upper surface of each rotating disk 510, and each suspension device 600 is inserted into a corresponding rotating base. During the vacuum coating process, the rotating mechanism 500, the rotating disks 510, and the rotating bases 520 all rotate to achieve the revolution and rotation of the suspension device 600 within the vacuum furnace. It should be noted that... Figure 11 The structures of the rotating mechanism 500, rotating disk 510, and rotating base 520 shown can be implemented using existing technology, therefore this application does not provide any special description or limitation.

[0071] Combination Figure 12 As shown, the state of one of the suspension devices 600, which is loaded with the coating part 6, being rotated to a position facing the target material 400 is explained.

[0072] The target 400 is vertically positioned inside the vacuum furnace. When a power source is applied, the target 400 undergoes magnetron sputtering, emitting metal particles outward. Since the entire vertically positioned target 400 undergoes magnetron sputtering, the top surface 61, long sidewall 62, and short sidewall 63 of the coating element 6 on each fixture seat 7 in the suspension device 600 receive particles sputtered from different positions on the target 400.

[0073] If adopts such Figure 8 The existing bracket structure shown loads coated parts for vacuum coating, with the top surface of the coated parts facing outwards. This results in the film thickness on the top surface being greater than the film thickness on the long and short sidewalls. Due to the difference in film thickness, there will be a significant difference in appearance and color, thus causing obvious color differences between the top surface and each sidewall.

[0074] By using the suspension device of this application to load the coated part for vacuum coating, the top surface of the coated part is set upward to avoid being directly facing the target material. Moreover, the vertical cage structure and the horizontal baffle structure partially block the lateral and oblique magnetron sputtering particle streams, which can reduce the amount of deposition on the long and short sidewalls facing the target material during rotation. This allows the film thickness on the sidewalls to be reduced in a controllable manner, thereby improving the consistency of film thickness on the top surface, long sidewalls, and short sidewalls, and achieving a more consistent appearance color.

[0075] Effect test:

[0076] by Figure 8The existing suspension structure shown is used as a comparative example, and the suspension device of this application is used as an embodiment. Vacuum coating is performed using the same target material and magnetron sputtering parameters. The coating thickness of the coated parts of the comparative example and the embodiment is measured, and the visual appearance of the surface color of the coated parts is recorded. The thickness of the long sidewall is used as a percentage reference, and the percentage of the thickness of the short sidewall or top surface to the thickness of the long sidewall is calculated respectively. The test results are shown in Table 1.

[0077] Table 1. Comparative Test Results

[0078]

[0079] As can be seen from the structure in Table 1, the thickness of the top film layer and the film layer thickness of the short sidewall in the comparative example deviate significantly from the film layer thickness of the long sidewall, while the difference in film layer thickness in the embodiment can be controlled within 10%, thus improving color consistency.

[0080] The suspension device provided by the embodiments of this application has been described in detail above. Specific embodiments have been used to explain the principle and implementation of this application. The above description is only for the purpose of helping to understand the method and core mechanism of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A suspension device for mounting coated parts for vacuum coating, characterized in that: The suspension device includes a first fixture and a second fixture that cooperate with each other. The first fixture and the second fixture are assembled and fixed by a locking member. The first fixture includes a first left side strip and a first right side strip arranged in parallel. The second fixture includes a second left side strip and a second right side strip arranged in parallel. The first left side strip, the first right side strip, the second left side strip and the second right side strip are arranged in parallel to each other to form a vertical cage structure. A plurality of first baffles are provided between the first left strip and the first right strip, and a plurality of second baffles are provided between the second left strip and the second right strip, wherein each first baffle is combined with another second baffle at a relative position to form a transverse baffle structure. Each transverse baffle structure has a fixture seat fixedly installed on its upper surface for placing the coated part. Each fixture seat is vertically upward along the length of the vertical cage structure and is located in the central area of ​​the cage structure.

2. The suspension device according to claim 1, characterized in that: At least one end of the suspension device is provided with the locking member, the locking member includes a cooperating connecting strip and a locking assembly, the connecting strip is laterally disposed at the end of the first fixture or the second fixture, the locking assembly is disposed at the opposite end of the second fixture or the first fixture, and the locking assembly laterally engages and locks the connecting strip.

3. The suspension device according to claim 2, characterized in that: The locking assembly includes an upper connecting plate and a lower connecting plate that extend laterally in parallel. The ends of the upper connecting plate and the lower connecting plate are locked together by fasteners. The upper connecting plate and the lower connecting plate pass through the upper surface and the lower surface of the connecting strip, respectively. The fasteners are locked to the outer side of the connecting strip.

4. The suspension device according to claim 3, characterized in that: The upper and lower ends of the suspension device are provided with the locking component.

5. The suspension device according to claim 1, characterized in that: The fixture base is fixedly disposed on the upper surface of the first baffle. The upper part of the fixture base is provided with a placement groove for placing the coated part. The coated part is detachably fixed to the placement groove by a shielding member. The fixture base is provided with a spring piece with a snap-fit. The bottom of the shielding member is provided with a snap-fit ​​post with a snap-fit ​​groove. The snap-fit ​​post passes through the snap-fit ​​of the fixture base and the spring piece. The snap-fit ​​groove cooperates with the snap-fit ​​of the spring piece to realize the detachable fixation of the shielding member on the fixture base.

6. The suspension device according to claim 5, characterized in that: The fixture base includes a fixing plate, a positioning plate, a sliding plate, and a base. The fixing plate is fixed to the upper surface of the first baffle, the positioning plate is fixed to the upper surface of the fixing plate, the sliding plate is slidably disposed on the upper surface of the positioning plate, and the base is slidably disposed on the upper surface of the sliding plate. The bottom of the base is provided with a sliding groove that mates with the sliding plate, and the upper part of the base is provided with the placement groove. The positioning plate is provided with a spring piece. The locking post of the coated part passes through the base, the sliding plate, and the positioning plate in sequence, and the locking groove of the locking post engages with the spring piece.

7. The suspension device according to claim 6, characterized in that: The fixing piece is provided with a clearance window, and the positioning piece is bent downward at the corresponding position of the clearance window to set the spring piece. The free end of the spring piece is located inside the clearance window. The snap-fit ​​of the spring piece extends along the length direction of the positioning piece. The sliding piece is provided with an elongated hole at the corresponding position of the snap-fit ​​of the spring piece. The length direction of the elongated hole is consistent with the extension direction of the snap-fit ​​of the spring piece. The base has a first through hole in the vertical direction for the snap-fit ​​post to pass through. The snap-fit ​​post of the shielding member passes through the first through hole, the elongated hole and the snap-fit ​​in sequence, and the snap-fit ​​groove engages with the snap-fit ​​post.

8. The suspension device according to claim 7, characterized in that: The lower part of the base is provided with a sliding groove that slides with the sliding piece. Both ends of the sliding piece are bent downward to form a retaining edge. One end of the fixing piece is recessed inward to form an operating groove. The width of the operating groove is greater than the width of the retaining edge.

9. The suspension device according to claim 7, characterized in that: The first baffle is provided with a clearance groove, the position of which corresponds to the position of the clearance window of the fixed plate.

10. The suspension device according to claim 1, characterized in that: The upper end of the suspension device is provided with an upper rod, and the lower end of the suspension device is provided with a lower rod. The upper rod and the lower rod are coaxially arranged.

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