Electroplating carrier circulating system

Abstract

The utility model discloses an electroplating carrier circulating system which comprises a feeding device, a discharging device, an electroplating bath, a first transmission mechanism for transmitting a carrier along a first transmission path and a second transmission mechanism for transmitting the carrier along a second transmission path, and the electroplating bath is arranged in the first transmission path; the feeding device is located at the starting end of the first conveying path, the discharging device is located at the terminal end of the first conveying path, the discharging device is located at the starting end of the second conveying path, and the feeding device is located at the terminal end of the second conveying path. The loading device is used for loading a workpiece and converting the carrier in an unloaded state into a full-load state, the unloading device is used for unloading the workpiece and converting the carrier in the full-load state into the unloaded state, and the first transmission path and the second transmission path form a first circulation loop of the carrier; the carrier can be quickly recycled, and the system efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electroplating carriers circulation systems. BACKGROUND

[0002] In prior art, part of electroplating equipment is loaded on carrier at loading station, and under the driving of transmission mechanism, carrier drives workpiece into electroplating tank for electroplating treatment, and after electroplating treatment, transmission mechanism transports carrier to unloading station, and workpiece is unloaded from carrier at unloading station, and carrier is usually manually carried to loading station to participate in subsequent electroplating treatment after workpiece is unloaded, and the efficiency of manual carrying is low, which will seriously affect the working efficiency of electroplating equipment. SUMMARY

[0003] The utility model aims at providing a kind of new electroplating carriers circulation systems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a kind of electroplating carriers circulation systems, comprising:

[0005] First transmission mechanism, along the first transmission path transmission full load state carrier, electroplating tank is arranged in the first transmission path;

[0006] Second transmission mechanism, along the second transmission path transmission empty load state the carrier;

[0007] Loading device, the loading device is located at the start end of the first transmission path, the loading device is located at the terminal end of the second transmission path, the loading device obtains empty load state the carrier from the second transmission mechanism unloading end, empty load state the carrier is loaded with workpiece to be electroplated, forms full load state the carrier, and full load state the carrier is transferred to the loading end of the first transmission mechanism;

[0008] Unloading device, the unloading device is located at the terminal section of the first transmission path, the unloading device is located at the start end of the second transmission path, the unloading device obtains full load state the carrier from the unloading end of the first transmission mechanism, full load state the carrier is unloaded with workpiece to be electroplated, forms empty load state the carrier, and empty load state the carrier is transferred to the loading end of the second transmission mechanism;

[0009] The first transmission path and the second transmission path constitute the first circulation loop of the carrier.

[0010] In some embodiments, the electroplating carrier circulation system comprises a third conveying mechanism for conveying the carriers in an abnormal state along a third conveying path, the starting end of the third conveying path is connected with the first conveying path, the feeding device is located at the ending end of the third conveying path, and the first conveying path and the third conveying path form a second circulation loop of the carriers.

[0011] In some embodiments, the first circulation loop is located in a horizontal plane, and the second circulation loop is located in a vertical plane.

[0012] In some embodiments, the third conveying path comprises a first conveying section for lifting the carriers upward, a second conveying section for conveying the carriers in a horizontal direction, and a third conveying section for conveying the carriers downward, the first, second and third conveying sections are sequentially arranged and connected along the conveying direction of the third conveying mechanism, and the second conveying section is located above the electroplating tank; the third conveying path is provided with a maintenance station.

[0013] In some embodiments, the first circulation loop is located in a vertical plane, and the second circulation loop is located in a horizontal plane.

[0014] In some embodiments, the first circulation loop and the second circulation loop are both located in a vertical plane.

[0015] In some embodiments, the first circulation loop and the second circulation loop are both located in a horizontal plane.

[0016] In some embodiments, in the first conveying path, the workpieces are conveyed from the feeding device to the electroplating tank, and the workpieces are conveyed from the electroplating tank to the discharging device, the electroplating equipment is provided with a detector for detecting the state of the carriers, the detector is arranged in the first conveying path, and the starting end of the third conveying path is located downstream of the detector; the detector is arranged downstream of the electroplating tank, and the discharging device is located at the starting end of the third conveying path.

[0017] In some embodiments, the first conveying mechanisms are arranged in two groups in parallel, the conveying directions of the two groups of the first conveying mechanisms are opposite; the second conveying mechanisms are arranged in two groups in parallel, the conveying directions of the two groups of the second conveying mechanisms are opposite.

[0018] The first conveying path corresponding to the first group of the first conveying mechanisms is referred to as a first branch;

[0019] The second conveying path corresponding to the first group of the second conveying mechanisms is referred to as a second branch.

[0020] The first conveying path corresponding to the second group of the first conveying mechanisms is referred to as a third branch.

[0021] The second transmission path corresponding to the second transmission mechanism of the second group is referred to as a fourth branch;

[0022] The first branch, the second branch, the third branch and the fourth branch constitute the first circulation loop.

[0023] In some embodiments, the electroplating device comprises a conveying mechanism, the conveying mechanism comprising:

[0024] A mounting frame extending in the up-down direction;

[0025] A lifting frame movably arranged on the mounting frame in the up-down direction;

[0026] A fixed seat movably arranged on the lifting frame in a first direction extending horizontally, the fixed seat comprising two groups arranged at intervals in the first direction, the two groups of fixed seats being capable of being arranged relatively far away or close to each other in the first direction, the fixed seat being fixedly provided with a hook for fixing the carrier.

[0027] In some embodiments, the lifting frame is provided with a first buffer assembly, the first buffer assembly being arranged on one side of the fixed seat in the first direction, the first buffer assembly comprising a first buffer head made of flexible material, the first buffer head being movably arranged on the lifting frame in the first direction; the first buffer assembly further comprising a first elastic member for providing a force required to hinder the movement of the first buffer head away from the fixed seat.

[0028] In some embodiments, the mounting frame is fixedly provided with a rack extending in the up-down direction, the lifting frame is rotatably provided with a gear, the gear and the rack are in meshing relationship, and the lifting frame is further provided with a driving assembly for driving the rotation of the gear.

[0029] In some embodiments, the lifting frame is fixedly provided with a sliding member, and the mounting frame is fixedly provided with a guide rail extending in the up-down direction, the sliding member being slidingly fitted on the guide rail.

[0030] In some embodiments, the upper and lower ends of the mounting frame are fixedly provided with limit members, and the upper part of the lifting frame is provided with a second buffer assembly, the second buffer assembly comprising a second buffer head and a second elastic member, the second buffer head being located between the upper end of the lifting frame and the limit member in the up-down direction, and the second elastic member being used to provide a force required to hinder the downward movement of the second buffer head.

[0031] Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art: the electroplating carrier circulation system of the utility model includes a first circulation loop of the carrier, and the carrier can complete the loading, electroplating and unloading of the workpiece when being transmitted in the first circulation loop, and at the same time can realize the rapid loading of the carrier, so that the carrier can be quickly recycled and the system efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Attachment Figure 1 A top view of the electroplating carrier circulation system according to Example 1 of the present invention;

[0033] Attachment Figure 2 It is a front view of the electroplating carrier circulation system of Example 1;

[0034] Attachment Figure 3 Schematic diagram of the electroplating carrier circulation system of Example 2;

[0035] Attachment Figure 4 is a three-dimensional schematic diagram of a transport mechanism according to a specific embodiment;

[0036] Attachment Figure 5 For attachment Figure 4 A magnified schematic diagram of point A in the middle;

[0037] Attachment Figure 6 For attachment Figure 4 The main view;

[0038] Wherein: 100, loading device; 200, unloading device; 300, electroplating tank; 400, first transmission mechanism; 500, second transmission mechanism; 600, third transmission mechanism; 601, maintenance station; 610, first transmission section; 620, second transmission section; 630, third transmission section; 700, first circulation loop; 800, second circulation loop; 900, detector;

[0039] 1. Carrier; 2. Transport mechanism; 21. Mounting frame; 211. Limiting member; 212. Second buffer assembly; 22. Lifting frame; 23. Fixed seat; 231. Hook; 24. First buffer assembly; 241. First buffer head; 242. Guide rod; 243. Main body; 251. Rack; 252. Drive motor; 253. Reducer; 261. Sliding member; 262. Guide rail. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to make the advantages and features of the present invention easier for those skilled in the art to understand. Obviously, the embodiments described in this application are only part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0041] Example 1

[0042] See also Figure 1 、 Figure 2 The electroplating carrier circulation system shown includes a loading device 100, an unloading device 200, an electroplating tank 300, a first conveying mechanism 400, and a second conveying mechanism 500. The first conveying mechanism 400 conveys the carrier 1 along a first conveying path, the electroplating tank 300 being disposed within the first conveying path. The loading device 100 is located at the starting end of the first conveying path, while the unloading device 200 is located at the end of the first conveying path. The second conveying mechanism 500 conveys the carrier 1 along a second conveying path, with the unloading device 200 located at the starting end of the second conveying path and the loading device 100 located at the end of the second conveying path. The first and second conveying paths constitute a first circulation loop 700 for the carrier 1.

[0043] In this embodiment, the loading device 100 obtains an empty carrier 1a from the unloading end of the second conveyor mechanism 500, loads the unloaded carrier 1a with workpieces to be plated, forming a fully loaded carrier 1b, and transfers the fully loaded carrier 1b to the loading end of the first conveyor mechanism 400. The unloading device 200 obtains a fully loaded carrier 1b from the unloading end of the first conveyor mechanism 400, unloads the workpieces from the fully loaded carrier 1b, forming an empty carrier 1a, and transfers the empty carrier 1a to the loading end of the second conveyor mechanism 500.

[0044] In the electroplating process of the workpiece, the workpiece to be electroplated is transported to the loading device 100, and the carrier 1a in the empty state is also transported to the loading device 100. The loading device 100 loads the workpiece onto the carrier 1, and transfers the carrier 1b in the full state to the loading end of the first transmission mechanism 400. Then, under the drive of the first transmission mechanism 400, the carrier 1b in the full state is transmitted along the first transmission path to the electroplating tank 300, and the workpiece is electroplated in the electroplating tank 300. After electroplating, the carrier 1b in the full state continues to be transmitted forward along the first transmission path to the unloading device 200. The unloading device 200 unloads the workpiece on the carrier 1, and transfers the carrier 1a in the empty state to the loading end of the second transmission mechanism 500. The carrier 1 in the empty state is transmitted to the loading device 100 along the second transmission path under the drive of the second transmission mechanism 500. Thus, the carrier 1 can quickly participate in the next round of electroplating operation. The rapid recycling of the carrier 1 is realized, and the efficiency of the electroplating process can be improved.

[0045] The circulation system further comprises a third transmission mechanism 600 for transmitting the carrier 1c in the abnormal state along a third transmission path. The starting end of the third transmission path is connected with the first transmission path, and the loading device 100 is located at the terminal end of the third transmission path. The first transmission path and the third transmission path form a second circulation loop 800 of the carrier 1. During the transmission process or in the electroplating process, the carrier 1 or the workpiece may be damaged or in other abnormal states. The carrier 1 in this state is referred to as the carrier 1c in the abnormal state. The carrier 1c in the abnormal state can be separated from the first circulation loop 700 by the third transmission mechanism 600, so as to avoid affecting the normal operation of the first circulation loop 700. In the embodiment, a maintenance station 601 is arranged in the third transmission path. The third transmission mechanism 600 transmits the carrier 1c in the abnormal state to the maintenance station 601. In the maintenance station 601, the workpiece is unloaded and the carrier 1c in the abnormal state is maintained or cleaned. After the problem is solved, the carrier 1 can be transmitted to the loading device 100 by the third transmission mechanism 600. After being loaded by the loading device 100, the carrier 1 forms the carrier 1b in the full state, and the carrier 1b in the full state enters the first transmission path and returns to the first circulation loop 700.

[0046] In the embodiment, the workpiece is a battery piece. During the transmission of the carrier 1, the battery piece loaded thereon may be broken, and the carrier 1 is thus converted into an abnormal state. The battery piece needs to be unloaded manually and the carrier 1 needs to be cleaned. At this time, the carrier 1c in the abnormal state is transmitted to the maintenance station 601 by the third transmission mechanism, and the carrier 1c in the abnormal state is taken off manually in the maintenance station 601. The battery piece fragments in the carrier 1 are cleaned, and the carrier 1 is maintained. After the treatment is completed, the carrier 1 is placed in the third transmission path again for transmission, so as to return to the first circulation loop 700.

[0047] In the embodiment, as shown in Figure 1 The first circulation loop 700 is located in a horizontal plane, as shown in Figure 2 The second circulation loop 800 is located in a vertical plane, which can avoid mutual interference between the first circulation loop 700 and the second circulation loop 800, reduce the difficulty of setting the circulation system, and save space. Specifically, as shown in Figure 2 The third transmission path includes a first transmission section 610 for lifting the abnormal-state carrier 1c upward, a second transmission section 620 for transmitting the abnormal-state carrier 1c in a horizontal direction, and a third transmission section 630 for transmitting the abnormal-state carrier 1c downward, which are sequentially arranged and connected along the transmission direction of the third transmission mechanism. In the embodiment, the second transmission section 620 is located above the electroplating tank 300, which can better save space.

[0048] In some embodiments, the first circulation loop 700 is located in a vertical plane, and the second circulation loop 800 is located in a horizontal plane, which can also avoid mutual interference between the first circulation loop 700 and the third transmission path, reduce the difficulty of setting the system, and save space.

[0049] In other embodiments, the first circulation loop 700 and the second circulation loop 800 are both located in a vertical plane, or the first circulation loop 700 and the second circulation loop 800 are both located in a horizontal plane, which can better reduce the occupation of the plane space.

[0050] In the embodiment, in the first transmission path, the workpiece to be electroplated is transmitted from the feeding device 100 to the electroplating tank 300, and the workpiece is transmitted from the electroplating tank 300 to the discharging device 200. The electroplating carrier circulation system is provided with a detector 900 for detecting the state of the carrier 1. The detector 900 is arranged in the first transmission path, and the starting end of the third transmission path is located downstream of the detector 900. Specifically, in the embodiment, the detector 900 is used to detect whether the workpiece loaded on the carrier 1 is broken. The detector 900 is arranged downstream of the electroplating tank 300, and the discharging device 200 is located at the starting end of the third transmission path. The detector 900 is signal-connected with the third transmission mechanism 600. When the detector 900 detects an abnormal-state carrier 1c in the first transmission path, the abnormal-state carrier 1c will directly enter the third transmission path from the first transmission path under the drive of the third transmission mechanism 600 and be transmitted to the repair station 601.

[0051] In the embodiment, as shown in Figure 4 , Figure 6As shown, the electroplating apparatus comprises a carrying mechanism 2 for driving the carrier 1 to move up and down, specifically, the carrying mechanism 2 comprises a mounting frame 21, a lifting frame 22 and a fixing seat 23, the mounting frame 21 extends in the up-down direction, and the lifting frame 22 is movably arranged on the mounting frame 21 in the up-down direction. The fixing seat 23 is movably arranged on the lifting frame 22 in a first direction extending horizontally, and the fixing seat 23 comprises two groups of fixing seats 23 arranged at intervals in the first direction, the two groups of fixing seats 23 can be arranged relatively far away or close to each other in the first direction, and the fixing seat 23 is fixedly provided with a hook 231 for fixing the carrier. In the embodiment, the second conveying mechanism 500 comprises the carrying mechanism 2, and the carrying mechanism 2 is arranged on the first conveying section 610 or the third conveying section 630 for conveying the carrier 1 in the up-down direction.

[0052] In the embodiment, the carrier 1 comprises a mounting plate and a carrying member fixed to the upper part of the mounting plate, and the workpiece is loaded on the lower part of the mounting plate, and the carrying member comprises two groups of members arranged at intervals in the horizontal direction. Specifically, the carrying member comprises a vertical extension part extending upward from the mounting plate and a horizontal extension part extending in the horizontal direction from the upper part of the vertical extension part, and a fixing groove is formed between the vertical extension part and the horizontal extension part. In the embodiment, the two groups of fixing grooves of the carrier 1 are opposite to each other, and when the carrier 1 is carried, the two groups of fixing seats 23 are relatively close to each other, so that the two groups of hooks 231 are close to each other, the two groups of hooks 231 are driven to extend into the two groups of carrying members, and then the two groups of fixing seats 23 are relatively far away from each other, so that the two groups of hooks 231 are respectively inserted into the two groups of fixing grooves, and the carrier 1 is fixed, so that the carrier 1 can be driven to move up and down by driving the lifting frame 22 to move up and down.

[0053] In some embodiments, the two groups of fixing grooves are located outside the two groups of fixing members, and the grooves of the two groups of fixing grooves are opposite to each other, and by driving the two groups of fixing seats 23 to be relatively close to each other, the hooks 231 are inserted into the fixing grooves, so as to fix the carrier 1.

[0054] In the embodiment, the lifting frame 22 is provided with a first buffer assembly 24, and the first buffer assembly 24 is arranged on one side of the fixing seat 23 in the first direction, and the first buffer assembly 24 comprises a first buffer head 241 made of flexible material, and the first buffer head 241 is movably arranged on the lifting frame 22 in the first direction. Referring to Figure 5As shown, the first buffer assembly 24 further comprises a guide rod 242 extending along the first direction, and the guide rod 242 is slidingly arranged on a main body 243 along an axial direction of the guide rod 242, and the first buffer head 241 is fixedly arranged at one end of the guide rod 242. The first buffer assembly 24 further comprises a first elastic member (not shown in the figure), which is used to provide the force required to prevent the first buffer head 241 from moving away from the fixed seat 23. The first buffer assembly 24 can limit and buffer the movement of the fixed seat 23, so as to avoid the movement of the fixed seat 23 out of range or the vibration of the carrying mechanism 2 due to too fast movement.

[0055] In the embodiment, the mounting frame 21 is fixedly provided with a rack 251 extending along the up-down direction, and the lifting frame 22 is rotatably provided with a gear (not shown in the figure), which is engaged with the rack 251. The lifting frame 22 is provided with a driving assembly for driving the gear to rotate, and the up-down movement of the lifting frame 22 can be more accurately controlled through the cooperation of the gear and the rack 251. Specifically, the driving assembly comprises a driving motor 252 and a speed reducer 253. Under the driving of the driving motor 252, the gear rotates to drive the lifting frame 22 to ascend or descend. The driving motor 252 drives the gear to rotate in the opposite direction, so as to drive the lifting frame 22 to move in the opposite direction, thereby realizing the up-down reciprocating movement of the lifting frame 22.

[0056] In the embodiment, the lifting frame 22 is fixedly provided with a sliding member 261, and the mounting frame 21 is fixedly provided with a guide rail 262 extending along the up-down direction, and the sliding member 261 is slidingly arranged on the guide rail 262. Through the cooperation between the guide rail 262 and the sliding member 261, the up-down movement of the lifting frame 22 is guided.

[0057] In some preferred embodiments, the mounting frame 21 is provided with a limiting member 211 at both upper and lower ends, which is used to limit the stroke of the up-down movement of the lifting frame 22, so as to prevent the lifting frame 22 from moving out of range. In some preferred embodiments, the upper or lower part of the lifting frame 22 is provided with a second buffer assembly 212, which is used to prevent the lifting frame 22 from colliding with the mounting frame 21 during the up-down movement.

[0058] In the embodiment, the upper part of the lifting frame 22 is provided with the second buffer assembly 212, and the structure of the second buffer assembly 212 is similar to that of the first buffer assembly 24. Specifically, along the up-down direction, the second buffer assembly 212 comprises a second buffer head and a second elastic member. Along the up-down direction, the second buffer head is located between the limiting member 211 and the lifting frame 22, and the second buffer head can move along the up-down direction. The second elastic member is used to provide the force required to prevent the buffer head from moving downward.

[0059] Embodiment 2

[0060] Reference Figure 3As shown, the difference between the present embodiment and embodiment 1 is that the first conveying mechanism 400 in the present embodiment is arranged in two groups in parallel, the conveying directions of the two groups of first conveying mechanism 400 are opposite, and the second conveying mechanism 500 is also arranged in two groups in parallel, the conveying directions of the two groups of second conveying mechanism 500 are also opposite. The first conveying path corresponding to the first group of first conveying mechanism 400a is referred to as the first branch, the second conveying path corresponding to the first group of second conveying mechanism 500a is referred to as the second branch, the first conveying path of the second group of first conveying mechanism 400b is referred to as the third branch, and the second conveying path of the second group of second conveying mechanism 500b is referred to as the fourth branch. Referring to Figure 3 As shown, the first branch and the third branch are parallel to each other, and the second branch and the fourth branch are parallel to each other.

[0061] In the present embodiment, the feeding device 100 and the discharging device 200 are respectively arranged in two groups, one group of feeding device 100 is located at the starting section of the first branch and the terminal end of the fourth branch, and the other group of feeding device 100 is located at the terminal end of the second branch and the starting section of the third branch, one group of discharging device 200 is located at the terminal end of the first branch and the starting section of the second branch, and the other group of discharging device 200 is located at the terminal end of the third branch and the starting end of the fourth branch. The first branch, the second branch, the third branch and the fourth branch are sequentially connected to form the first circulation loop 700.

[0062] The electroplating carrier circulation system of the present embodiment is provided with two groups of first conveying mechanism 400, and the electroplating treatment of the workpiece can be simultaneously performed in the first branch and the third branch, and the first circulation loop 700 is connected to the first branch and the third branch through the two groups of second conveying mechanism 500, so that the carrier 1 between the two electroplating branches can circulate. Referring to Figure 3 As shown, such arrangement can effectively reduce the length of the second conveying path, i.e. the length of the second branch and the fourth branch can be shortened, so that the time of the carrier 1 in the empty state is greatly shortened, and the operation rate of the carrier 1 is greatly improved.

[0063] In summary, the electroplating carrier circulation system of the above embodiment comprises a first circulation loop 700 of the carrier, and the carrier 1 can complete loading, electroplating and unloading of the workpiece when transmitting in the first circulation loop 700, and the carrier 1 can be quickly loaded, so that the carrier 1 can be quickly recycled, and the system efficiency is improved. When the carrier 1 or the workpiece loaded on the carrier 1 has a problem, the carrier 1c in the abnormal state can be separated from the first circulation loop 700 and enter the second circulation loop 800, and the carrier 1c in the abnormal state is transmitted to the maintenance station 601 under the drive of the third transmission mechanism 600 for maintenance and cleaning. After the problem is solved, the carrier 1 can be transmitted to the loading device 100 through the third transmission mechanism 600, and after being processed by the loading device 100, the carrier 1 can return to the first circulation loop 700. The circulation system is more convenient for maintenance of the carrier 1c in the abnormal state, and the maintenance of the carrier 1c in the abnormal state will not affect the circulation transmission of the normal carrier 1, ensuring the normal operation of the electroplating work and ensuring the work efficiency.

[0064] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An electroplating carrier circulation system, characterized by, include: a first transport mechanism for transporting a fully loaded carrier along a first transport path, wherein the electroplating tank is disposed in the first transport path; a second transport mechanism for transporting the unloaded carrier along a second transport path; A loading device, the loading device is located at the starting end of the first transmission path and the ending end of the second transmission path, the loading device obtains the carrier in an empty state from the unloading end of the second transmission mechanism, loads the workpiece to be electroplated on the empty carrier to form the carrier in a fully loaded state, and transfers the fully loaded carrier to the loading end of the first transmission mechanism; a discharge device, the discharge device being located at the end section of the first transmission path and the starting end of the second transmission path, the discharge device obtaining the fully loaded carrier from the discharge end of the first transmission mechanism, unloading the workpiece to be electroplated from the fully loaded carrier to form an empty carrier, and transferring the empty carrier to the loading end of the second transmission mechanism; The first transmission path and the second transmission path form a first circulation loop of the carrier.

2. The electroplating carrier circulation system of claim 1, wherein: The electroplating carrier circulation system includes a third transmission mechanism, which transmits the carrier in an abnormal state along a third transmission path. The starting end of the third transmission path is connected to the first transmission path. The loading device is located at the end end of the third transmission path. The first transmission path and the third transmission path constitute a second circulation loop of the carrier.

3. The electroplating carrier circulation system of claim 2, wherein: The first circulation loop is located in a horizontal plane, and the second circulation loop is located in a vertical plane.

4. The electroplating carrier circulation system of claim 3, wherein: The third transmission path includes a first transmission section for lifting the carrier upward, a second transmission section for transmitting the carrier horizontally, and a third transmission section for transmitting the carrier downward. The first transmission section, the second transmission section, and the third transmission section are arranged and connected in sequence along the transmission direction of the third transmission mechanism. The second transmission section is located above the electroplating tank. A maintenance station is provided in the third transmission path.

5. The electroplating carrier circulation system of claim 2, wherein: The first circulation loop is located in a vertical plane, and the second circulation loop is located in a horizontal plane; Alternatively, the first circulation loop and the second circulation loop are both located in a vertical plane; Alternatively, the first circulation loop and the second circulation loop are both located in a horizontal plane.

6. The electroplating carrier circulation system of claim 2, wherein: In the first transmission path, the workpiece is transmitted from the loading device to the electroplating tank, and the workpiece is transmitted from the electroplating tank to the unloading device. The electroplating equipment is provided with a detector for detecting the status of the carrier. The detector is arranged in the first transmission path, and the starting end of the third transmission path is located downstream of the detector; the detector is arranged downstream of the electroplating tank, and the unloading device is located at the starting end of the third transmission path.

7. The electroplating carrier circulation system of any one of claims 1 to 5, wherein: The first transmission mechanism comprises two groups arranged in parallel, and the conveying directions of the two groups of the first transmission mechanism are opposite; the second transmission mechanism comprises two groups arranged in parallel, and the conveying directions of the two groups of the second transmission mechanism are opposite; The first transmission path corresponding to the first transmission mechanism of the first group is called the first branch; The second transmission path corresponding to the first group of the second transmission mechanisms is referred to as a second branch; The first transmission path corresponding to the second group of the first transmission mechanisms is referred to as a third branch; The second transmission path corresponding to the second group of the second transmission mechanisms is referred to as a fourth branch; The first branch, the second branch, the third branch and the fourth branch constitute the first circulation loop.

8. The electroplating carrier circulation system of any one of claims 2-5, wherein: The electroplating equipment comprises a conveying mechanism, and the conveying mechanism comprises: a mounting frame extending in the up-down direction; a lifting frame movably arranged on the mounting frame in the up-down direction; a fixed seat movably arranged on the lifting frame in a first direction extending horizontally, the fixed seat comprising two groups of fixed seats arranged at intervals in the first direction, the two groups of fixed seats being capable of being arranged relatively far away or close to each other in the first direction, and the fixed seat being fixedly provided with a hook for fixing the carrier.

9. The electroplating carrier circulation system of claim 8, wherein: The lifting frame is provided with a first buffer assembly arranged on one side of the fixed seat in the first direction, the first buffer assembly comprising a first buffer head made of flexible material, the first buffer head being movably arranged on the lifting frame in the first direction; the first buffer assembly further comprises a first elastic member for providing a force required to hinder the movement of the first buffer head away from the fixed seat.

10. The electroplating carrier circulation system of claim 8, wherein: The mounting frame is fixedly provided with a rack extending in the up-down direction, the lifting frame is rotatably provided with a gear, the gear and the rack are in meshing relationship, and the lifting frame is further provided with a driving assembly for driving the gear to rotate; and / or, the lifting frame is fixedly provided with a sliding member, the mounting frame is fixedly provided with a guide rail extending in the up-down direction, and the sliding member is slidingly fitted on the guide rail; and / or, the upper and lower ends of the mounting frame are fixedly provided with limit members, the upper part of the lifting frame is provided with a second buffer assembly, the second buffer assembly comprises a second buffer head and a second elastic member, in the up-down direction, the second buffer head is located between the upper end of the lifting frame and the limit member, and the second elastic member is used to provide a force required to hinder the downward movement of the second buffer head.

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