Copper powder adding device

Abstract

The utility model provides a copper powder adding device and relates to the technical field of electroplating. The copper powder adding device is arranged above a dissolving tank and comprises a storage assembly and a protection assembly, the storage assembly is used for temporarily storing copper powder and comprises a storage barrel, a storage plate and a driving part, the storage plate is rotationally connected to the lower end of the storage barrel, and an output shaft of the driving part is in transmission connection with the storage plate and drives the storage plate to rotate relative to the storage barrel; the state of the storage assembly is switched; the protection assembly is arranged on the peripheral side of the output shaft so as to protect the output shaft. The copper powder adding device can improve the accuracy and the stability when the copper powder is added, and the quality of electroplated products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating, in particular to a copper powder adding device. Background Art

[0002] In the electroplating of high-density interconnection boards, vertical continuous electroplating technology is generally used to achieve the requirements of high density. In the vertical continuous electroplating process, the PCB board is electroplated in a multi-stage copper electroplating cylinder. During the electroplating process, it is often necessary to control the concentration of copper ions in the electrolytic solution to achieve the technical effect of improving the uniformity and density of the coating on the PCB board. However, in actual production, since the copper ions in the electroplating copper cylinder are recycled by timely replenishing the electrolytic solution, as the electroplating process continues, the copper ion concentration in the electrolytic solution gradually decreases, so it is necessary to use a copper powder adding device to replenish the copper ions in the electroplating copper cylinder in a timely manner; however, the copper powder remaining on the copper powder adding device when adding copper ions, and the acid gas generated during the electroplating process will corrode the copper powder adding device, thereby destroying the accuracy and stability of the copper powder adding device. Utility Model Content

[0003] The utility model aims to provide a copper powder adding device, which can improve the accuracy and stability when adding copper powder and improve the quality of electroplating products.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The copper powder adding device is arranged above the dissolving tank and includes:

[0006] A storage assembly, used for temporarily storing copper powder, the storage assembly comprises a storage barrel, a storage plate and a driving member, the storage plate is rotatably connected to the lower end of the storage barrel, the output shaft of the driving member is drivingly connected to the storage plate, and drives the storage plate to rotate relative to the storage barrel to switch the state of the storage assembly;

[0007] A protection component is arranged on the peripheral side of the output shaft to protect the output shaft.

[0008] As a further technical solution, the protective assembly includes an extension shaft and a protective cover, the two ends of the extension shaft are respectively connected to the output shaft and the storage plate, the protective cover is configured to be cylindrical and is sleeved on the output shaft, and the protective cover extends along the axial direction of the output shaft.

[0009] As a further technical solution, the copper powder adding device further comprises a support box and a connecting assembly, the driving member is connected to the top wall of the support box through the connecting assembly, and the output shaft extends toward the interior of the support box;

[0010] The protective cover is provided as a bellows cover, the first end of the bellows cover is fixedly connected to the connection assembly, and the second end is fixedly connected to the extension shaft.

[0011] As a further technical solution, the protection assembly further includes a sleeve, a first flange, and a second flange;

[0012] The first end of the bellows cover is fixedly connected to the connection assembly through the first flange, the sleeve is fixedly sleeved on the extension shaft, and the second end of the bellows cover is fixedly connected to the sleeve through the second flange.

[0013] As a further technical solution, the protection assembly further includes a protection cylinder and a third flange. The protection cylinder is sleeved on the sleeve. The third flange is fixedly connected to the protection cylinder and cooperates with the second flange to form a limit groove. The edge of the second end of the bellows cover is located in the limit groove.

[0014] As a further technical solution, both ends of the extension shaft are detachably connected to the output shaft and the placement plate respectively.

[0015] As a further technical solution, the connection assembly includes a fixed seat and a mounting seat. The fixed seat is provided in a cylindrical shape and is connected to the top wall of the support box. The driving member is connected to the fixed seat through the mounting seat, and the first flange is fixedly connected to the inner side of the fixed seat.

[0016] As a further technical solution, the placement assembly further includes a sensor. The placement plate is provided with a connecting portion. The connecting portion is rotatably connected to the placement cylinder. The sensor is correspondingly arranged with the connecting portion for sensing the position of the connecting portion and is communicatively connected to the driving member.

[0017] As a further technical solution, the placement assembly further includes a counterweight member. The counterweight member is detachably connected to the connecting portion.

[0018] As a further technical solution, the placement assembly further includes a cover body and an object to be placed. The cover body is provided with a placement opening. The cover body covers the upper end of the placement cylinder, and the object to be placed is inserted into the placement opening.

[0019] Compared with the prior art, the technical advantages of the copper powder adding device provided by the present utility model are:

[0020] Before the copper powder adding device adds copper powder into the dissolving tank, the placing plate seals the lower end of the placing cylinder; when the copper powder adding device adds copper powder into the dissolving tank, first place a certain amount of copper powder in the placing cylinder and on the placing plate, then the driving part operates, and drives the placing plate to rotate through the output shaft, so that the copper powder on the placing plate falls into the dissolving tank under the action of its own gravity; then the driving part operates again, drives the placing plate to rotate again through the output shaft and seals the lower end of the placing cylinder, so as to facilitate the next copper powder addition. During the whole process, since a protection component is arranged corresponding to the output shaft, the protection component can carry out targeted protection on the output shaft. Therefore, during the working process of the copper powder adding device, the protection component can reduce the direct contact between the copper powder and the acid gas generated during the electroplating process and the output shaft, thereby slowing down the probability of the output shaft being corroded and damaged, ensuring the accuracy and stability when the output shaft drives the placing plate to rotate, and further improving the accuracy and stability when adding copper powder into the dissolving tank, and improving the quality of electroplated products. Brief Description of the Drawings

[0021] Figure 1 is a cross-sectional view of the copper powder adding device provided by an embodiment of the present utility model;

[0022] Figure 2 is an exploded view of the copper powder adding device provided by an embodiment of the present utility model;

[0023] Figure 3 is a partial cross-sectional view of the copper powder adding device provided by an embodiment of the present utility model;

[0024] Figure 4 is Figure 3 the enlarged view at A in

[0025] Figure 5 is a structural schematic diagram of the copper powder adding device provided by an embodiment of the present utility model.

[0026] In the figure:

[0027] 100, placing component; 110, placing cylinder; 120, placing plate; 121, placing part; 122, connecting part; 130, driving part; 131, output shaft; 140, inductor; 150, counterweight; 160, cover body; 161, placing opening; 162, handle; 170, placed object;

[0028] 200, protection component; 210, extension shaft; 220, protective cover; 230, sleeve; 240, first flange; 250, second flange; 260, protective cylinder; 270, third flange;

[0029] 300, support box;

[0030] 400, connecting component; 410, fixed seat; 420, mounting seat. Detailed implementation manners

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only the parts related to the present utility model rather than all the structures are shown in the accompanying drawings.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below and to the left of", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0035] Combine Figures 1 to 5As shown in the figure, the copper powder adding device provided in this embodiment is arranged above the dissolution tank and is used to add copper powder into the dissolution tank, and ensure the accuracy and stability when adding copper powder. Specifically, the copper powder adding device includes a storage component 100 and a protection component 200. The storage component 100 is used to temporarily store copper powder. The storage component 100 includes a storage cylinder 110, a storage plate 120 and a driving member 130. The storage plate 120 is rotatably connected to the lower end of the storage cylinder 110. The output shaft 131 of the driving member 130 is drivingly connected to the storage plate 120 and drives the storage plate 120 to rotate relative to the storage cylinder 110 to switch the state of the storage component 100. The protection component 200 is arranged on the periphery of the output shaft 131 to protect the output shaft 131. This copper powder adding device can improve the accuracy and stability when adding copper powder.

[0036] Before the copper powder adding device adds copper powder into the dissolution tank, the storage plate 120 blocks the lower end of the storage cylinder 110. When the copper powder adding device adds copper powder into the dissolution tank, first place a certain amount of copper powder in the storage cylinder 110 and on the storage plate 120, then the driving member 130 operates, and drives the storage plate 120 to rotate through the output shaft 131, so that the copper powder on the storage plate 120 falls into the dissolution tank under the action of its own gravity. After that, the driving member 130 operates again, drives the storage plate 120 to rotate again through the output shaft 131 and blocks the lower end of the storage cylinder 110 to facilitate the next addition of copper powder. During the whole process, since the protection component 200 is provided corresponding to the output shaft 131, the protection component 200 can perform targeted protection on the output shaft 131. Therefore, during the operation of the copper powder adding device, the protection component 200 can reduce the direct contact between the copper powder and the acid gas generated during the electroplating process and the output shaft 131, thereby reducing the probability of the output shaft 131 being corroded and damaged, ensuring the accuracy and stability when the output shaft 131 drives the storage plate 120 to rotate, and further improving the accuracy and stability when adding copper powder into the dissolution tank and improving the quality of electroplated products.

[0037] Specifically, the protection component 200 includes an extension shaft 210 and a protective cover 220. Both ends of the extension shaft 210 are drivingly connected to the output shaft 131 and the storage plate 120 respectively. The protective cover 220 is arranged as a cylinder and sleeved on the output shaft 131, and the protective cover 220 extends along the axial direction of the output shaft 131.

[0038] Since the copper powder adding device is arranged above the dissolving tank, the acid gas generated during the electroplating process of the PCB board in the dissolving tank will diverge upward. The output shaft 131 is drivingly connected to the placing plate 120 through the extension shaft 210, which can increase the distance between the output shaft 131 and the dissolving tank, thereby reducing the contact between the acid gas and the output shaft 131 and slowing down the probability of the output shaft 131 being corroded and damaged. The protective cover 220 is sleeved on the output shaft 131, further enhancing the protection effect on the output shaft 131. While reducing the contact between the acid gas and the output shaft 131, it avoids copper powder from falling onto the output shaft 131, thus preventing the situation where copper powder and acid gas combine and adhere to the output shaft 131, so as to further reduce the probability of the output shaft 131 being corroded and damaged.

[0039] Furthermore, both ends of the extension shaft 210 are detachably connected to the output shaft 131 and the placing plate 120 respectively.

[0040] As the electroplating process continues, if the extension shaft 210 is corroded by the acid gas, a new extension shaft 210 can be directly replaced without replacing the entire driving part 130, thus saving production costs. The detachable connection method between both ends of the extension shaft 210 and the output shaft 131 and the placing plate 120 can be selected according to actual needs, such as plug connection, snap connection, pin connection, threaded connection or connection through threaded connectors, etc. In this embodiment, both ends of the extension shaft 210 are connected to the output shaft 131 and the placing plate 120 through threaded connectors, ensuring the connection effect, improving the connection convenience and ensuring the transmission effect at the same time. In addition, the extension shaft 210 is made of a corrosion-resistant material, and the extension shaft 210 is made of stainless steel.

[0041] Preferably, the copper powder adding device further includes a support box 300 and a connection assembly 400. The driving part 130 is connected to the top wall of the support box 300 through the connection assembly 400, and the output shaft 131 extends into the support box 300; the protective cover 220 is set as a bellows cover, the first end of the bellows cover is fixedly connected to the connection assembly 400, and the second end is fixedly connected to the extension shaft 210.

[0042] Specifically, two connecting through-holes (not shown in the figure) are provided on the top wall of the support box 300. The storage cylinder 110 is connected to the top wall of the support box 300 through one of the connecting through-holes. The connecting assembly 400 is correspondingly connected to the top wall of the support box 300 for the other connecting through-hole. The driving member 130 is connected to the connecting assembly 400, and the output shaft 131 passes through the connecting assembly 400 and extends into the interior of the support box 300. Since the protective cover 220 is provided as a bellows cover, when the storage plate 120 needs to be opened, the output shaft 131 drives the extension shaft 210 to retract. At this time, the bellows cover is compressed along the axis of the output shaft 131. When the storage plate 120 needs to be closed, the output shaft 131 drives the extension shaft 210 to extend into the interior of the support box 300. At this time, the storage plate 120 closes and seals the lower end of the storage cylinder 110, and the bellows cover is stretched along the axis of the output shaft 131. During the whole process, the bellows cover always covers the output shaft 131 and part of the extension shaft 210 to further improve the protection effect on the output shaft 131 and part of the extension shaft 210. The support box 300 plays a supporting role for the storage assembly 100 to improve the convenience when adding copper powder into the dissolution tank. In this embodiment, the driving member 130 is provided as a cylinder. In some other embodiments, the driving member 130 can also be provided as a push rod motor.

[0043] In some other embodiments, it can also be set that when the output shaft 131 drives the extension shaft 210 to retract, the storage plate 120 closes and seals the lower end of the storage cylinder 110; when the output shaft 131 drives the extension shaft 210 to extend into the interior of the support box 300, the storage plate 120 opens.

[0044] Specifically, the protection assembly 200 further includes a sleeve 230, a first flange 240, and a second flange 250. The first end of the bellows cover is fixedly connected to the connecting assembly 400 through the first flange 240. Specifically, the first end of the bellows cover is provided with a first flanging, and the first flanging extends circumferentially along the bellows cover to form a ring. The first flange 240 is correspondingly provided as a ring, and the first flanging is hermetically and fixedly connected to the connecting assembly 400 through the first flange 240, thereby improving the connection tightness and connection strength between the first end of the bellows cover and the connecting assembly 400, and preventing copper powder and acid gas from entering the inner side of the bellows cover from the connection between the bellows cover and the connecting assembly 400.

[0045] The sleeve 230 is fixedly sleeved on the extension shaft 210, and the second end of the accordion cover is fixedly connected to the sleeve 230 through the second flange 250. Specifically, the second end of the accordion cover is provided with a second flange, and the second flange extends in a ring shape along the circumference of the accordion cover. The sleeve 230 is fixedly sleeved on the middle part of the extension shaft 210, and the outer wall of the sleeve 230 is fixedly provided with a second flange 250 in a ring shape. The second flange is fixedly connected to the sleeve 230 through the second flange 250, so that the accordion cover can be stretched or compressed against the output shaft 131; at the same time, the second flange 250 cooperates with the sleeve 230 to improve the connection tightness and connection strength between the second end of the accordion cover and the extension shaft 210, and prevent copper powder and acid gas from entering the inner side of the accordion cover from the connection between the sleeve 230 and the extension shaft 210.

[0046] Furthermore, the protection assembly 200 further includes a protection tube 260 and a third flange 270. The protection tube 260 is sleeved on the sleeve 230. The protection sleeve 230 protects the sleeve 230, thereby reducing the probability of the sleeve 230 being corroded by copper powder and acid gas, thereby extending the service life of the sleeve 230, thereby further improving the connection tightness and connection strength between the second end of the accordion cover and the extension shaft 210. The third flange 270 is fixedly connected to the protection tube 260, and cooperates with the second flange 250 to form a limiting groove. The edge of the second end of the accordion cover is located in the limiting groove, thereby reducing the probability of the second flange being corroded by copper powder and acid gas, thereby extending the service life of the accordion cover as a whole.

[0047] Preferably, the connecting assembly 400 includes a fixed seat 410 and a mounting seat 420, the fixed seat 410 is configured to be cylindrical and connected to the top wall of the support box 300, the driving member 130 is connected to the fixed seat 410 through the mounting seat 420, and the first flange 240 is fixedly connected to the inner side of the fixed seat 410.

[0048] Specifically, the first end of the fixing seat 410 is fixedly connected to the outer side of the top wall of the support box 300 corresponding to the corresponding connection hole, the mounting seat 420 is connected to the second end of the fixing seat 410, and the driving member 130 is connected to the mounting seat 420, so as to ensure the transmission effect of the counter-plate 120, and at the same time make the driving member 130 located outside the support box 300, so as to reduce the corrosion of the driving member 130 by copper powder and acid gas. A mounting plate (not shown in the figure) is provided at the second end of the fixing seat 410, a first avoidance hole is provided on the mounting plate, a second avoidance hole is provided on the mounting seat 420, and the output shaft 131 passes through the second avoidance hole and the first avoidance hole in sequence and extends into the fixing seat 410; the first flange 240 is fixedly connected to the side of the mounting plate away from the mounting seat 420, and the first flange is fixedly connected between the first flange 240 and the mounting plate, so as to further improve the connection tightness and connection strength between the first end of the accordion cover and the connection assembly 400.

[0049] Preferably, the storage component 100 further includes a sensor 140. The storage plate 120 is provided with a connecting portion 122. The connecting portion 122 is rotatably connected to the storage cylinder 110. The sensor 140 is correspondingly arranged with the connecting portion 122 for sensing the position of the connecting portion 122 and is communicatively connected to the driving member 130.

[0050] Specifically, the storage plate 120 is provided with a storage portion 121 and a connecting portion 122. The connecting portion 122 is rotatably connected to the lower end of the storage cylinder 110. When adding copper powder into the dissolution tank, the storage plate 120 is in a closed state, and the copper powder is placed on the storage portion 121. When the copper powder on the storage portion 121 reaches the single addition amount, such as 50 g, the storage plate 120 generates a displacement relative to the storage cylinder 110, that is, the storage portion 121 drops, and the connecting portion 122 tilts upward. During this process, when the sensor 140 senses that the position of the connecting portion 122 changes, it controls the output shaft 131 of the driving member 130 to retract, so that the storage plate 120 is completely opened, so that all the copper powder on the storage portion 121 drops into the dissolution tank to ensure the accuracy of the copper powder addition amount this time.

[0051] Preferably, the storage component 100 further includes a counterweight 150. The counterweight 150 is detachably connected to the connecting portion 122. By setting counterweights 150 of different specifications, the same copper powder adding device can achieve quantitative addition of copper powder of different weights, thereby improving the applicability of the copper powder adding device.

[0052] Furthermore, the storage component 100 further includes a cover 160 and an object placement member 170. The cover 160 is provided with an object placement opening 161. The cover 160 covers the upper end of the storage cylinder 110, which can prevent external impurities from entering the storage cylinder 110, thereby ensuring the purity of the copper powder when adding copper powder. The object placement member 170 is inserted into the object placement opening 161. When adding copper powder, with the help of the object placement member 170, copper powder of the target weight can be put into the storage cylinder 110 through the object placement opening 161, and the cover 160 does not need to be opened during the whole process, thereby improving convenience. In addition, in order to improve the usability of the cover 160, in this embodiment, the cover 160 is further provided with a handle 162.

[0053] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A copper powder adding device is arranged above the dissolving tank, characterized in that: include: A storage assembly (100) is used for temporarily storing copper powder, the storage assembly (100) comprising a storage barrel (110), a storage plate (120) and a driving member (130), the storage plate (120) being rotatably connected to the lower end of the storage barrel (110), an output shaft (131) of the driving member (130) being drivingly connected to the storage plate (120) and driving the storage plate (120) to rotate relative to the storage barrel (110) so as to switch the state of the storage assembly (100); A protection component (200) is arranged on the peripheral side of the output shaft (131) to protect the output shaft (131).

2. The copper powder adding device according to claim 1, characterized in that: The protection component (200) comprises an extension shaft (210) and a protection cover (220), the two ends of the extension shaft (210) are respectively transmission-connected to the output shaft (131) and the storage plate (120), the protection cover (220) is configured to be cylindrical and sleeved on the output shaft (131), and the protection cover (220) extends along the axial direction of the output shaft (131).

3. The copper powder adding device according to claim 2, characterized in that: The copper powder adding device further comprises a support box (300) and a connecting assembly (400), the driving member (130) being connected to the top wall of the support box (300) via the connecting assembly (400), and the output shaft (131) extending toward the interior of the support box (300); The protective cover (220) is configured as an accordion cover, wherein a first end of the accordion cover is fixedly connected to the connection assembly (400), and a second end of the accordion cover is fixedly connected to the extension shaft (210).

4. The copper powder adding device according to claim 3, characterized in that: The protection assembly (200) further includes a sleeve (230), a first flange (240) and a second flange (250); The first end of the accordion cover is fixedly connected to the connecting assembly (400) via the first flange (240), the sleeve (230) is fixedly sleeved on the extension shaft (210), and the second end of the accordion cover is fixedly connected to the sleeve (230) via the second flange (250).

5. The copper powder adding device according to claim 4, characterized in that: The protective assembly (200) further comprises a protective tube (260) and a third flange (270), wherein the protective tube (260) is sleeved on the sleeve (230), and the third flange (270) is fixedly connected to the protective tube (260) and cooperates with the second flange (250) to form a limiting groove, wherein the edge of the second end of the accordion cover is located in the limiting groove.

6. The copper powder adding device according to claim 2, characterized in that: Both ends of the extension shaft (210) are detachably connected to the output shaft (131) and the storage plate (120).

7. The copper powder adding device according to claim 4, characterized in that: The connecting assembly (400) comprises a fixing seat (410) and a mounting seat (420); the fixing seat (410) is configured to be cylindrical and connected to the top wall of the supporting box (300); the driving member (130) is connected to the fixing seat (410) via the mounting seat (420); and the first flange (240) is fixedly connected to the inner side of the fixing seat (410).

8. The copper powder adding device according to claim 1, characterized in that: The storage assembly (100) further comprises a sensor (140); the storage plate (120) is provided with a connecting portion (122); the connecting portion (122) is rotatably connected to the storage tube (110); the sensor (140) is arranged corresponding to the connecting portion (122) and is used to sense the position of the connecting portion (122) and to communicate with the driving member (130).

9. The copper powder adding device according to claim 8, characterized in that: The storage assembly (100) further comprises a weight component (150), wherein the weight component (150) is detachably connected to the connection portion (122).

10. The copper powder adding device according to claim 8, characterized in that: The storage assembly (100) further comprises a cover body (160) and a storage piece (170); the cover body (160) is provided with a storage opening (161); the cover body (160) is covered on the upper end of the storage tube (110); and the storage piece (170) is inserted into the storage opening (161).

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