Defoaming structure of electroplating sub-tank liquid medicine

Abstract

The embodiment of the utility model provides an electroplating sub-tank liquid medicine defoaming structure which comprises a tank body, overflow ports are formed in the left end and the right end of the tank body, a bottom plate is further arranged in the tank body, clamping blocks are further arranged on the two sides of each overflow port, and each clamping block comprises a first clamping block, a second clamping block, a third clamping block and a fourth clamping block. Wherein a first filter plate is arranged between the first clamping block and the second clamping block, a second filter plate is arranged between the third clamping block and the fourth clamping block, the first filter plate and the second filter plate incline from bottom to top from the bottom of the tank body, and through holes are distributed in the first filter plate and the second filter plate. The first filter plate and the second filter plate which are inclined are arranged on the two sides of the electroplating material belt through the clamping blocks respectively, the first filter plate and the second filter plate which are provided with the through holes are matched to block bubbles flowing along with liquid medicine on the two sides of the electroplating material belt and enable the bubbles to be collided and combined and finally broken, the retention time of the bubbles in liquid is prolonged to a certain degree, and the electroplating effect is improved. And the fracture probability is increased.

Description

Technical Field

[0001] This utility model relates to the field of electroplating equipment technology, and in particular to a defoaming structure for electroplating sub-tank chemicals. Background Technology

[0002] Currently, in the electroplating process, the chemicals are supplied to the electroplating sub-tank through a storage tank. Electroplating is then carried out in the sub-tank, and the chemicals flowing out of the overflow port of the sub-tank pass through a return tank and are then pumped back into the sub-tank.

[0003] During the process of adding chemicals or recirculating chemicals in the electroplating tank, the incoming chemicals will collide with the original chemicals in the electroplating tank or form eddies, which will bring in air. The undissolved air forms bubbles or bubble clusters with a diameter of 0.5mm to 2mm. These bubbles or bubble clusters will be adsorbed on the surface of the electroplating strip as it moves, which will hinder the normal deposition of metal ions and result in abnormal phenomena such as porosity or no coating in some areas. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a defoaming structure for electroplating sub-tank chemicals, which solves the technical problem that when chemicals collide or form eddies, air is introduced, and undissolved air forms bubbles or bubble clusters with a diameter of 0.5mm to 2mm. These bubbles or bubble clusters will be adsorbed on the surface of the electroplating strip as it moves, thus hindering the normal deposition of metal ions and causing abnormal phenomena such as porosity or local absence of coating in the plating layer.

[0006] (II) Technical Solution

[0007] The purpose of this utility model is to provide a defoaming structure for electroplating sub-tank chemicals, which includes a tank body with overflow ports at both ends. The tank body also has a bottom plate inside. The overflow ports are provided with locking blocks on both sides. The locking blocks include a first locking block, a second locking block, a third locking block, and a fourth locking block. A first filter plate is provided between the first and second locking blocks, and a second filter plate is provided between the third and fourth locking blocks. The first and second filter plates are inclined from bottom to top from the bottom of the tank body. Both the first and second filter plates are provided with through holes.

[0008] Preferably, the base plate includes an upper plate and a lower plate, with the upper plate stacked in the middle of the lower plate, and both the upper plate and the lower plate having holes distributed thereon.

[0009] Preferably, the lower ends of the first filter plate and the second filter plate abut against the upper surface of the base plate, and the first filter plate and the second filter plate are arranged in a "V" shape with the space between them.

[0010] Preferably, the snap-fit ​​block is provided with a snap-fit ​​groove, the upper end of the snap-fit ​​groove is provided with a threaded hole, and an oblique slit is provided adjacent to the threaded hole, the oblique slit sloping from top to bottom.

[0011] Preferably, the tilt angle of the first filter plate and the second filter plate is 25° to 85°.

[0012] Preferably, the upper end of the snap-fit ​​block is also provided with mounting bolts.

[0013] Preferably, the first filter plate and the second filter plate are made of PEEK.

[0014] (III) Beneficial Effects

[0015] By setting inclined first and second filter plates on both sides of the electroplating strip through snap-fit ​​blocks, the first and second filter plates with through holes work together to block the air bubbles flowing with the chemical solution on both sides of the electroplating strip and cause them to collide and merge, eventually breaking them. It also prolongs the residence time of the material in the liquid to a certain extent, increasing the probability of its breakage. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0017] Figure 1 This is a three-dimensional view of the overall structure of the defoaming structure of the electroplating sub-tank solution;

[0018] Figure 2 This is a top view of the overall structure of the defoaming structure of the electroplating sub-tank solution;

[0019] Figure 3 This is an exploded view of the overall structure of the defoaming structure of the electroplating sub-tank solution;

[0020] Figure 4 This is a 3D diagram of the snap-fit ​​block of the defoaming structure of the electroplating sub-tank solution.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Tank body; 2. Bottom plate; 20. Upper plate; 21. Lower plate; 3. Overflow port; 4. Snap-fit ​​block; 40. First snap-fit ​​block; 41. Second snap-fit ​​block; 42. Third snap-fit ​​block; 43. Fourth snap-fit ​​block; 44. Snap-fit ​​groove; 45. Threaded hole; 46. Angled seam; 5. Mounting bolt; 6. First filter plate; 60. Through hole; 7. Second filter plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] The following is in conjunction with the appendix Figures 1 to 4 To further describe, this utility model discloses a defoaming structure for an electroplating sub-tank solution, including a tank body 1 with overflow ports 3 at both ends. A bottom plate 2 is also glued inside the tank body 1. Each overflow port 3 on both sides of the tank body 1 is provided with a locking block 4. The locking block 4 is located on both sides of the overflow port 3. The locking block 4 includes a first locking block 40, a second locking block 41, a third locking block 42, and a fourth locking block 43. The first locking block 40 and the third locking block 42 are positioned opposite each other on both sides of the overflow port 3 on the right side of the tank body 1. The second locking block 41 and the fourth locking block 43... 3 are located on both sides of the overflow port 3 on the left side of the tank body 1; a first filter plate 6 is provided between the first locking block 40 and the second locking block 41, and a second filter plate 7 is provided between the third locking block 42 and the fourth locking block 43. The first filter plate 6 and the second filter plate 7 are inclined from bottom to top from the bottom of the tank body 1. Both the first filter plate 6 and the second filter plate 7 are provided with through holes 60. The material belt passes between the first filter plate 6 and the second filter plate 7. The first filter plate 6 and the second filter plate 7 with through holes 60 cooperate to block the air bubbles flowing with the chemical solution on both sides of the electroplating material belt and cause them to collide and merge, and eventually break.

[0025] In a preferred embodiment, the base plate 2 includes an upper plate 20 and a lower plate 21. The upper plate 20 is stacked in the middle of the lower plate 21. Both the upper plate 20 and the lower plate 21 have holes distributed on them. The base plate 2 covers the bottom of the tank 1 to form a space for circulating plating solution, and the holes are used for liquid flow.

[0026] In a preferred embodiment, the lower ends of the first filter plate 6 and the second filter plate 7 both abut against the upper surface of the base plate 2. The first filter plate 6 and the second filter plate 7 are arranged in a "V" shape with the space between them. The oblique arrangement of the first filter plate 6 and the second filter plate 7 can change the path of the rising bubbles to prolong the bubble residence time or guide the bubbles to gather, thereby increasing the probability of bubble bursting.

[0027] In a preferred embodiment, the snap-fit ​​block 4 is provided with a snap-fit ​​groove 44, the upper end of the snap-fit ​​groove 44 is provided with a threaded hole 45, and an oblique slit 46 is provided adjacent to the threaded hole 45. The oblique slit 46 is inclined from top to bottom, and the first filter plate 6 and the second filter plate 7 are fixed on the snap-fit ​​block 4 by insertion and through the oblique slit 46.

[0028] In a preferred embodiment, the tilt angle of the first filter plate 6 and the second filter plate 7 is 25° to 85°.

[0029] In a preferred embodiment, the upper end of the snap-fit ​​block 4 is also provided with a mounting bolt 5, which is inserted into the threaded hole 45 so that the end of the mounting bolt 5 abuts against the upper end of the first filter plate 6 or the second filter plate 7.

[0030] In a preferred embodiment, the first filter plate 6 and the second filter plate 7 are made of PEEK, which has excellent heat resistance, insulation and chemical stability.

[0031] The technical solution of this embodiment is compared before and after use, and its technical parameters are as follows:

[0032] index Before use After use Liquid surface bubble coverage around 30% ＜5％ Coating porosity <![CDATA[10 - 12 per cm 2 > <![CDATA[≤ 2 per / cm 2 > Current efficiency —— +5％

[0033] By setting inclined first and second filter plates on both sides of the electroplating strip through snap-fit ​​blocks, the first and second filter plates with through holes work together to block the air bubbles flowing with the chemical solution on both sides of the electroplating strip and cause them to collide and merge, eventually breaking them. It also prolongs the residence time of the material in the liquid to a certain extent, increasing the probability of its breakage.

[0034] Although embodiments of the present invention have been shown above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications and variations to the above embodiments, but such modifications are all included within the broad scope of the foregoing disclosure, drawings and claims.

Claims

1. A defoaming structure for an electroplating sub-tank solution, comprising a tank body with overflow outlets at both ends, and a bottom plate further comprising the tank body, characterized in that: The overflow port is also provided with snap-fit ​​blocks on both sides. The snap-fit ​​blocks include a first snap-fit ​​block, a second snap-fit ​​block, a third snap-fit ​​block, and a fourth snap-fit ​​block. A first filter plate is provided between the first and second snap-fit ​​blocks, and a second filter plate is provided between the third and fourth snap-fit ​​blocks. The first and second filter plates are inclined from bottom to top from the bottom of the tank. Both the first and second filter plates are provided with through holes.

2. The defoaming structure of electroplating bath according to claim 1, characterized in that: The base plate includes an upper plate and a lower plate, with the upper plate stacked in the middle of the lower plate, and both the upper and lower plates have holes distributed on them.

3. The defoaming structure of electroplating bath according to claim 1, characterized in that: The lower ends of the first filter plate and the second filter plate both abut against the upper surface of the base plate, and the first filter plate and the second filter plate are arranged in a "V" shape with the space between them.

4. The defoaming structure of electroplating bath according to claim 1, characterized in that: The snap-fit ​​block is provided with a snap-fit ​​groove, and a threaded hole is provided at the upper end of the snap-fit ​​groove. An oblique slit is provided adjacent to the threaded hole, and the oblique slit slopes from top to bottom.

5. The defoaming structure of electroplating bath according to claim 1, wherein: The tilt angle of the first filter plate and the second filter plate is 25° to 85°.

6. The defoaming structure of electroplating bath according to claim 1, wherein: The upper end of the snap-fit ​​block is also provided with mounting bolts.

7. The defoaming structure of electroplating bath according to claim 1, characterized in that: The first and second filter plates are made of PEEK.

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