Adjustable guide wheel supporting device and cathode hanger

Abstract

The utility model discloses an adjustable guide wheel supporting device and a cathode hanger, and relates to the technical field of PCB electroplating, the adjustable guide wheel supporting device is used for being installed on a guide rail in a sliding mode, and the adjustable guide wheel supporting device comprises a supporting frame, a first guide wheel assembly and an adjusting device; the first guide wheel assemblies are installed on the supporting frame, at least two first guide wheel assemblies are arranged in the extending direction of the guide rail at intervals, and each first guide wheel assembly comprises a first guide wheel capable of rotating around a first fixing shaft; the adjusting devices are installed on the supporting frame, correspond to the first guide wheels one to one and are used for adjusting the positions of the first guide wheels in the supporting direction of the guide rails; according to the technical scheme, the height adjusting device capable of adjusting the first guide wheel assembly is arranged in the adjustable guide wheel supporting device, so that the device can adjust the height of the first guide wheel assembly through the adjusting device, and then the parallelism of the adjustable guide wheel supporting frame is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB electroplating, and particularly relates to an adjustable guide wheel support device and a cathode hanger. Background Art

[0002] In PCB electroplating technology, a cathode hanger is often used as a clamping and transporting device. The cathode hanger is a device that clamps the workpiece to be plated and transports it into the chemical solution tank for electroplating. The clip part of the cathode hanger for clamping the workpiece to be plated will be immersed in the chemical solution with the workpiece to be plated. The guide wheel support device, as a load-carrying device, performs cyclic transportation work in the electroplating equipment. The guide wheels provided on the guide wheel support device are in flat contact with the transmission and conveying guide of the cathode hanger, and the guide wheels are driven to roll on the guide flat to complete the transportation work of the PCB board. To ensure the quality of electroplating, the fixture of the guide wheel support device needs to always remain parallel during installation and transportation. However, the existing guide wheel support devices are difficult to always remain parallel during installation or long-term operation, and it is easy to have the phenomenon of board jamming during transportation, which affects the uniformity of electroplating of the workpiece to be plated. When adjusting, a large number of operations are also required to remove the cathode hanger for adjustment, which takes a lot of time. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose an adjustable guide wheel support device and a cathode hanger, aiming to more simply adjust the parallelism of the guide wheel support device and the cathode hanger.

[0004] To achieve the above purpose, the adjustable guide wheel support device proposed by the utility model is used to be slidably installed on a guide rail. The adjustable guide wheel support device includes: a support frame, a first guide wheel assembly, and an adjusting device; the first guide wheel assembly is installed on the support frame, at least two groups of the first guide wheel assemblies are arranged at intervals along the extending direction of the guide rail, each group of the first guide wheel assemblies includes a first guide wheel that can rotate around a first fixed shaft, and the guide rail is used to support the first guide wheel; the adjusting device is installed on the support frame, the adjusting device is arranged corresponding to the first guide wheel one by one, and the adjusting device is used to adjust the position of the first guide wheel along the supporting direction of the guide rail so that the first guide wheel can keep in contact with the guide rail.

[0005] In an embodiment, the support frame includes a base and an adjusting code arranged above the base. The adjusting code and the base are provided with through holes opened along the supporting direction of the guide rail and adjusting holes opened along the direction perpendicular to the guide rail; the first fixed shaft passes through the adjusting hole so that the position of the first guide wheel assembly is adjustable, and the through hole is used to install the adjusting device.

[0006] In one embodiment, the adjustment code has a top plate disposed above the base at intervals along the support direction of the guide rail, and side plates connecting the top plate and the base; the top plate is provided with upper through holes along the support direction of the guide rail, the base is provided with lower through holes along the support direction of the guide rail, and the side plates are provided with the adjustment holes along the direction perpendicular to the guide rail; the adjustment device includes an upper adjustment member and a lower adjustment member, the upper adjustment member passes through the upper through hole and abuts against the first guide wheel assembly, and the lower adjustment member passes through the lower through hole and abuts against the first guide wheel assembly.

[0007] In one embodiment, the upper adjustment member is threadedly connected to the upper through hole, and the lower adjustment member is threadedly connected to the lower through hole.

[0008] In one embodiment, the first guide wheel assembly further includes: an adjustment block and a first fastener, the adjustment block is provided with a shaft hole for the first fixed shaft to pass through, the adjustment block has a first side wall and a second side wall disposed opposite to each other, the upper adjustment member abuts against the first side wall, and the lower adjustment member abuts against the second side wall; the first fastener is threadedly connected to one end of the first fixed shaft away from the first guide wheel.

[0009] In one embodiment, the adjustable guide wheel support device further includes a second guide wheel assembly, the second guide wheel assembly includes a second fixed shaft, a second guide wheel and a second fastener, the second fixed shaft extends along the support direction of the guide rail, the second guide wheel can rotate around the second fixed shaft, the support frame is provided with a mounting hole along the support direction of the guide rail, the second fixed shaft passes through the mounting hole, the second fastener is threadedly connected to the upper end of the second fixed shaft, and the second guide wheel is rotatably connected to the lower end of the second fixed shaft.

[0010] In one embodiment, the adjustable guide wheel support device further includes anti-collision blocks, and the anti-collision blocks are disposed at both ends of the support frame at intervals along the extension direction of the guide rail.

[0011] The present utility model further provides a cathode hanger, including a guide rail, an adjustable guide wheel support device and a hanger assembly; the adjustable guide wheel support device is the adjustable guide wheel support device described in any one of the above, and the adjustable guide wheel support device is slidably hung on the guide rail; the hanger assembly is fixedly installed on the adjustable guide wheel support device, and the hanger assembly is used for clamping a PCB board.

[0012] In one embodiment, the guide rail includes two guiding flats extending in the same direction, the two guiding flats are spaced apart along the direction perpendicular to the guide rail and are disposed at the same horizontal height; the guiding flat has an upper end surface for abutting against the first guide wheel and an outer side surface for abutting against the second guide wheel.

[0013] In one embodiment, the cathode hanger includes two of the adjustable idler support devices, and the two adjustable idler support devices are hung on the two guide flats one by one; the two adjustable idler support devices are oppositely arranged on the outer sides of the two guide flats.

[0014] The technical solution of the present utility model is to adopt a support frame in the adjustable idler support device, and two first idler assemblies are arranged at intervals along the extension direction of the guide rail on the support frame, and an adjusting device capable of adjusting the height of the first idler assembly is provided, so that the device can drive the first idler assembly to move along the support direction of the guide rail through the adjusting device, thereby adjusting the height of the first idler assembly. Furthermore, by coordinating the heights of the two first idler assemblies, the parallelism of the adjustable idler support frame can be adjusted, greatly reducing the time and cost required for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the adjustable idler support device provided by the present utility model;

[0017] Figure 2 It is a schematic structural diagram of another embodiment of the adjustable idler support device provided by the present utility model;

[0018] Figure 3 It is an exploded view of another embodiment of the adjustable idler support device provided by the present utility model;

[0019] Figure 4 It is a schematic structural diagram of an embodiment of the cathode hanger provided by the present utility model.

[0020] Description of the reference numerals in the drawings:

[0021] 100. Adjustable idler support device; 1. Support frame; 11. Base; 111. Lower through hole; 12. Adjusting code; 121. Top plate; 1211. Upper through hole; 122. Side plate; 1221. Adjusting hole; 2. First idler assembly; 21. First fixed shaft; 22. First idler; 23. Adjusting block; 231. First side wall; 232. Second side wall; 24. First fastener; 3. Adjusting device; 31. Upper adjusting member; 32. Lower adjusting member; 4. Second idler assembly; 41. Second fixed shaft; 42. Second idler; 43. Second fastener; 5. Anti-collision block;

[0022] 200. Cathode hanger; 201. Guide rail; 2011. Guide flat; 202. Hanger assembly.

[0023] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] In PCB electroplating technology, a cathode hanger is often used as a clamping and transportation device. The cathode hanger is a device in the PCB board cathode hanger that clamps the workpiece to be plated and transports it into the chemical solution tank for electroplating. The clip part of the cathode hanger used to clamp the workpiece to be plated will be immersed in the chemical solution with the workpiece. The guide wheel support frame, as a load-carrying device, conducts cyclic transportation work in the electroplating equipment. The guide wheel provided on the guide wheel support frame abuts against the transmission and conveying guide flat in the cathode hanger, and drives the guide wheel to roll on the guide flat to complete the transportation work of the PCB board. To ensure the electroplating quality, the clamp of the guide wheel support frame needs to always remain parallel during installation and transportation. However, the existing guide wheel support frames are difficult to always remain parallel during installation or long-term operation, and it is easy to have the phenomenon of card board during transportation, which affects the uniformity of electroplating of the workpiece to be plated. A large number of operations are also required to remove the guide wheel support frame for adjustment during adjustment, which takes a lot of time.

[0028] In the existing guide wheel support frame used in the cathode hanger, the position height of the guide wheel relative to the guide wheel support frame is fixed and cannot be adjusted. It is necessary to adjust the position angle of the guide rail in contact with the guide wheel in advance, and it cannot be adjusted during use. However, during the continuous use of the equipment, the guide rail will have different degrees of parallelism deviation, and the guide wheel support frame will also no longer remain parallel due to wear during continuous use. At this time, it is necessary to readjust the height of the guide wheel of the guide wheel support frame to make it level again. Since the cathode hanger and electroplating equipment and other devices are relatively large in size, readjustment will cost a lot of cost and time.

[0029] The present utility model proposes an adjustable guide wheel support device.

[0030] Please refer to Figures 1-3 , in an embodiment of the present utility model, the adjustable guide wheel support device 100 is used for slidably mounting on the guide rail. The adjustable guide wheel support device 100 includes: a support frame 1, a first guide wheel assembly 2, and an adjustment device 3; the first guide wheel assembly 2 is installed on the support frame 1. At least two groups of the first guide wheel assemblies 2 are arranged at intervals along the extension direction of the guide rail. Each group of the first guide wheel assemblies 2 includes a first guide wheel 22 that can rotate around a first fixed shaft 21. The guide rail is used to support the first guide wheel 22; the adjustment device 3 is installed on the support frame 1, and the adjustment device 3 is arranged in one-to-one correspondence with the first guide wheel 22. The adjustment device 3 is used to adjust the position of the first guide wheel 22 along the support direction of the guide rail so that the first guide wheel 22 can remain in contact with the guide rail.

[0031] In this embodiment, the support frame 1 is a supporting structure for the parts of the device. The first guide wheel assembly 2 is installed on the support frame 1. The first guide wheel assembly 2 has a first fixed shaft 21 and a first guide wheel 22 rotating around the first fixed shaft 21. The first fixed shaft 21 is fixedly installed on the support frame 1. The first guide wheel 22 is provided with one end of the fixed shaft and protrudes from the side of the support frame 1, so that when the device is hung on the guide rail, the support frame 1 will not hinder the movement of the guide wheel, and avoid the device from being unable to move on the guide rail. The adjustment device 3 abuts against the first guide wheel assembly 2, applies a rotational force to the adjustment device 3, and the adjustment device 3 can convert the rotational motion into a displacement motion, thereby pushing the first guide wheel assembly 2 to move in the support direction of the guide rail; in this embodiment, two first guide wheel assemblies 2 are arranged at intervals along the direction. By matching the position height of the two first guide wheel assemblies 2, the adjustable guide wheel support device 100 can be adjusted to the required parallelism. The support direction of the guide rail is the height direction. The height of the first guide wheel assembly 2 can be adjusted by the adjustment device 3. In other embodiments, the number of first guide wheel assemblies 2 can also be adjusted according to the quality of the object to be plated. After the first guide wheel assembly 2 is moved to the preset position, it is limited and fixed at the preset position. At this time, the adjustable guide wheel support device 100 is relatively parallel to the guide rail. Whether it is in operation or docked on the guide rail, the first guide wheel assembly 2 can always remain in a relatively fixed position with the support frame 1, thereby maintaining the parallelism of the adjustable guide wheel support device 100. In the future, when there is a non-parallel situation, the parallelism of the adjustable guide wheel support device 100 itself can be adjusted by simply adjusting the height of the first guide wheel assembly 2, without adjusting the guide rail and the equipment, which greatly reduces the time and cost required for maintenance.

[0032] The technical solution of the utility model is to set a support frame 1 in an adjustable guide wheel support device 100, and set two first guide wheel assemblies 2 on the support frame 1 at intervals along the movement direction of the device, the first guide wheel assembly 2 has a first fixed axis 21 extending in a direction perpendicular to the guide rail, and the first guide wheel 22 can rotate around the first fixed axis 21, so that the adjustable guide wheel support device 100 can move in a preset direction through the first guide wheel assembly 2, and also set an adjustment device 3, so that the device can drive the first guide wheel assembly 2 to move along the support direction of the guide rail through the adjustment device 3, so as to adjust the height of the first guide wheel assembly 2, and then adjust the parallelism of the adjustable guide wheel support frame 1. When the parallelism of the adjustable guide wheel support frame 1 does not meet the requirements, the parallelism of the first guide wheel assembly 2 can be adjusted by simply operating the adjustment device 3, which greatly reduces the time and cost required for maintenance.

[0033] Reference Figure 1 , 3, in one embodiment, the support frame 1 includes a base 11 and an adjustment code 12 disposed above the base 11. The adjustment code 12 and the base 11 have through holes opened along the support direction of the guide rail, and adjustment holes 1221 opened along a direction perpendicular to the guide rail; the first fixed shaft 21 passes through the adjustment hole 1221 so that the position of the first guide wheel assembly 2 is adjustable, and the through hole is used to install the adjustment device 3. The adjustment code 12 is disposed above the support frame 1, which is used to support the first guide wheel assembly 2 and can also provide a moving space for the guide wheel assembly. The through holes on the base 11 and the adjustment code 12 are used to install the adjustment device 3, so that the adjustment device 3 can only adjust the first guide wheel 22 device along a preset direction. The adjustment hole 1221 is used to limit the movement track and adjustable range of the first fixed shaft 21, so as to limit that the first guide wheel assembly 2 can only be adjusted within a certain range along the height direction.

[0034] Refer to Figure 1 , 3 , in one embodiment, the adjustment code 12 has a top plate 121 spaced above the base 11 along the support direction of the guide rail, and a side plate 122 connecting the top plate 121 and the base 11; the top plate 121 is provided with an upper through hole 1211 along the support direction of the guide rail, the base 11 is provided with a lower through hole 111 along the support direction of the guide rail, and the side plate 122 is provided with an adjustment hole 1221 along a direction perpendicular to the guide rail; the adjustment device 3 includes an upper adjustment member 31 and a lower adjustment member 32. The upper adjustment member 31 passes through the upper through hole 1211 and abuts against the first guide wheel assembly 2, and the lower adjustment member 32 passes through the lower through hole 111 and abuts against the first guide wheel assembly 2. The side plate 122 is disposed perpendicular to the upper end surface of the support frame 1 and is used to support the first guide wheel assembly 2. The adjustment hole 1221 opened on the side plate 122 is a long strip hole extending along the support direction of the guide rail and is used to guide the first guide wheel assembly 2. The length of the long strip hole is the adjustable range of the first guide wheel assembly 2. In other embodiments, the long strip adjustment hole 1221 can also extend along other directions. When it extends along the horizontal direction, the distance between the two first guide wheel assemblies 2 can be adjusted. When it extends along an inclined angle, the height and distance of the two first guide wheel assemblies 2 can be adjusted simultaneously. The upper through hole 1211 and the lower through hole 111 are used to install the upper adjustment member 31 and the lower adjustment member 32. The coaxial setting of the upper through hole 1211 and the lower through hole 111 enables the upper adjustment member 31 and the lower adjustment member 32 to be aligned and jointly clamp the first guide wheel assembly 2. The coaxial setting can avoid the occurrence of shear force during the process of the upper adjustment member 31 and the lower adjustment member 32 supporting the first guide wheel assembly 2, resulting in the first guide wheel assembly 2 being clamped and deformed or twisted.

[0035] In one embodiment, the upper adjusting member 31 and the upper through-hole 1211 are connected by threads, and the lower adjusting member 32 and the lower through-hole 111 are connected by threads. The adjusting member is a bolt with threads on its outer periphery. The adjusting member is connected to the upper through-hole 1211 and the lower through-hole 111 by threads, and the threads can convert the rotational motion of the adjusting member into a linear displacement motion. The adjusting member can be adjusted to any required distance by the threads. The user only needs to rotate the adjusting member to push the first guide wheel assembly 2 to the required position.

[0036] In one embodiment, the first guide wheel assembly 2 further includes: an adjusting block 23 and a first fastener 24. The adjusting block 23 is provided with a shaft hole for the first fixed shaft 21 to pass through. The adjusting block 23 has a first side wall 231 and a second side wall 232 which are oppositely arranged. The upper adjusting member 31 abuts against the first side wall 231, and the lower adjusting member 32 abuts against the second side wall 232. The first fastener 24 is threadedly connected to one end of the first fixed shaft 21 away from the first guide wheel 22. The shaft hole formed in the adjusting block 23 is similar in size to the first fixed shaft 21, so that the first fixed shaft 21 can be limited in the shaft hole and will not fall out of the elongated adjusting hole 1221. The adjusting block 23 is used to transfer the external force applied to the adjusting member to the first fixed shaft 21 to push the first fixed shaft 21 to the required position. The adjusting block 23 can also increase the force-bearing area. By acting on the adjusting block 23, the adjusting member can avoid directly acting on the first fixed shaft 21 with a smaller diameter, making it easier to adjust the position of the first guide wheel assembly 2. The first side wall 231 and the second side wall 232 are arranged as planes so that they can cooperate with the end shape of the adjusting member and are more easily stressed. The first fastener 24 and the first guide wheel 22 are respectively arranged on both sides of the side plate 122 to ensure that the first guide wheel assembly 2 will not fall out of the adjusting hole 1221 and the through-hole.

[0037] Refer to Figure 2 、 3, in one embodiment, the adjustable idler support device 100 further includes a second idler assembly 4. The second idler assembly 4 includes a second fixed shaft 41, a second idler 42, and a second fastener 43. The second fixed shaft 41 extends along the support direction of the guide rail. The second idler 42 is rotatable about the second fixed shaft 41. The support frame 1 is provided with a mounting hole along the support direction of the guide rail. The second fixed shaft 41 passes through the mounting hole. The second fastener 43 is threadedly connected to the upper end of the second fixed shaft 41. The second idler 42 is rotatably connected to the lower end of the second fixed shaft 41. The support direction of the guide rail is the vertical direction, that is, the second fixed shaft 41 is arranged vertically. The second idler 42 rotates around the second fixed shaft 41, enabling it to roll while fitting on a vertically arranged wall surface, thereby increasing the structural stability of the adjustable idler support device 100. The fastener is used to fix the second idler 42 and the second fixed shaft 41 to the mounting hole. Pass the second fixed shaft 41 provided with the second idler 42 through the mounting hole from below the support frame 1, and then sleeved the fastener on the upper end of the second fixed shaft 41, so that the second idler assembly 4 can be fixed in the mounting hole of the support frame 1, enabling the second idler assembly 4 to walk while fitting on a vertical wall surface.

[0038] Referring to Figure 1 , in one embodiment, the adjustable idler support device 100 further includes a collision block 5. The collision blocks 5 are arranged at both ends of the support frame 1 at intervals along the extension direction of the guide rail. The extension direction of the guide rail is the movement direction of the adjustable idler support device 100. Arranging the collision blocks 5 at both ends of the device movement direction can prevent the device from being damaged when it moves to the end. Even when the device moves to the end but fails to stop due to a malfunction, the collision block 5 can play a role in resisting to prevent the device from being damaged and make it stop.

[0039] Referring to Figure 4 , the present utility model also proposes a cathode hanger 200. The cathode hanger 200 includes a guide rail 201, a hanger assembly 202, and an adjustable idler support device 100. The specific structure of the adjustable idler support device 100 refers to the above embodiments. Since the present cathode hanger 200 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here. Among them, the adjustable idler support device 100 is the adjustable idler support device 100 of any one of the above. The adjustable idler support device 100 is slidably hung on the guide rail 201; the hanger assembly 202 is fixedly installed on the adjustable idler support device 100, and the hanger assembly 202 is used for clamping the PCB board. The hanger assembly 202 is symmetrically hung on the guide rail 201 to balance the forces at both ends of the hanger assembly 202. A one-way wheel device is also provided on the hanger. A steel chain is provided below the one-way wheel device. Through the cooperative transmission of the steel chain and the one-way wheel device, the cathode hanger 200 can be dragged and slid on the guide rail 201, thereby completing electroplating.

[0040] In one embodiment, the guide rail 201 includes two guiding flats 2011 extending in the same direction. The two guiding flats 2011 are spaced apart in a direction perpendicular to the guide rail and are provided at the same horizontal height. The guiding flat 2011 has an upper end face for abutting against the first guide wheel 22, and an outer side face for abutting against the second guide wheel 42. The first guide wheel 22 in the first guide wheel assembly 2 is placed on the upper end face. Through the supporting action of the hanging bracket, it can ensure that the first guide wheel 22 always rolls on the upper end face. Also, by abutting the second guide wheel 42 against the outer side face, the adjustable guide wheel supporting device 100 can be stably mounted on the guide rail 201, so that the hanging bracket assembly 202 can be hung on the guide rail 201 and can move along the guide rail 201.

[0041] In one embodiment, the cathode hanging bracket 200 includes two adjustable guide wheel supporting devices 100. The two adjustable guide wheel supporting devices 100 are hung on the two guiding flats 2011 one by one. The two adjustable guide wheel supporting devices 100 are oppositely arranged on the outer sides of the two guiding flats 2011. In this embodiment, two adjustable guide wheel supporting devices 100 are symmetrically arranged along the guide rail 201. The two adjustable guide wheel supporting devices 100 are both arranged on the outer side of the guide rail 201, so as to clamp the guide rail 201 between the supporting devices from both sides through the second guide wheel assemblies 4 on the devices. This can not only improve the stability of the adjustable guide wheel supporting device 100 when moving on the guide rail 201, but also ensure that the first guide wheel 22 can always abut against the guide rail 201 and roll on the guide rail 201.

[0042] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An adjustable guide wheel support device, used for slidably mounting on a guide rail, characterized in that: The adjustable guide wheel support device comprises: Support frame; a first guide wheel assembly mounted on the support frame, wherein at least two groups of the first guide wheel assemblies are arranged at intervals along the extension direction of the guide rail, each group of the first guide wheel assemblies comprises a first guide wheel rotatable around a first fixed axis, and the guide rail is used to support the first guide wheel; and An adjusting device is installed on the support frame, and the adjusting device is arranged in a one-to-one correspondence with the first guide wheel. The adjusting device is used to adjust the position of the first guide wheel along the supporting direction of the guide rail so that the first guide wheel can maintain contact with the guide rail.

2. The adjustable guide wheel support device according to claim 1, characterized in that: The support frame includes a base and an adjustment code arranged above the base, the adjustment code and the base have a through hole opened along the supporting direction of the guide rail, and an adjustment hole opened along a direction perpendicular to the guide rail; the first fixed axis is passed through the adjustment hole to make the position of the first guide wheel assembly adjustable, and the through hole is used to install the adjustment device.

3. The adjustable guide wheel support device according to claim 2, characterized in that: The adjustment code comprises a top plate arranged above the base at intervals along the supporting direction of the guide rail, and a side plate connecting the top plate and the base; the top plate has an upper through hole along the supporting direction of the guide rail, the base has a lower through hole along the supporting direction of the guide rail, and the side plate has the adjustment hole in a direction perpendicular to the guide rail; the adjustment device comprises an upper adjustment member and a lower adjustment member, the upper adjustment member is passed through the upper through hole and abuts against the first guide wheel assembly, and the lower adjustment member is passed through the lower through hole and abuts against the first guide wheel assembly.

4. The adjustable guide wheel support device according to claim 3, characterized in that: The upper adjusting member is connected to the upper through hole via threads, and the lower adjusting member is connected to the lower through hole via threads.

5. The adjustable guide wheel support device according to claim 3, characterized in that: The first guide wheel assembly also includes: an adjusting block, wherein the adjusting block is provided with an axial hole for the first fixed shaft to pass through, the adjusting block having a first side wall and a second side wall arranged opposite to each other, the upper adjusting member abuts against the first side wall, and the lower adjusting member abuts against the second side wall; A first fastener is threadedly connected to an end of the first fixed shaft away from the first guide wheel.

6. The adjustable guide wheel support device according to claim 1, characterized in that: The adjustable guide wheel support device also includes at least one second guide wheel assembly, the second guide wheel assembly includes a second fixed shaft, a second guide wheel and a second fastener, the second fixed shaft extends along the support direction of the guide rail, the second guide wheel can rotate around the second fixed shaft, the support frame has a mounting hole along the support direction of the guide rail, the second fixed shaft is passed through the mounting hole, the second fastener is threadedly connected to the upper end of the second fixed shaft, and the second guide wheel is rotatably connected to the lower end of the second fixed shaft.

7. The adjustable guide wheel support device according to any one of claims 1 to 6, characterized in that: The adjustable guide wheel support device also includes anti-collision blocks, which are arranged at intervals at both ends of the support frame along the extension direction of the guide rail.

8. A cathode rack for PCB electroplating equipment, characterized in that: include: guide; An adjustable guide wheel support device, wherein the adjustable guide wheel support device is the adjustable guide wheel support device as described in any one of claims 1 to 7, and the adjustable guide wheel support device can be slidably hung on the guide rail; The hanger assembly is fixedly mounted on the adjustable guide wheel support device, and the hanger assembly is used for clamping the PCB board.

9. The cathode rack according to claim 8, characterized in that: The guide rail includes two guide flats extending in the same direction, and the two guide flats are spaced apart in a direction perpendicular to the guide rail and are arranged at the same horizontal height; the guide flat has an upper end surface for abutting against the first guide wheel, and an outer side surface for abutting against the second guide wheel.

10. The cathode rack according to claim 9, characterized in that: The cathode rack comprises two adjustable guide wheel support devices, which are one-to-one connected to the two guide flats; the two adjustable guide wheel support devices are relatively arranged on the outer sides of the two guide flats.

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