CN113279042A - Barrel for barrel plating and method of using the same - Google Patents
Barrel for barrel plating and method of using the same Download PDFInfo
- Publication number
- CN113279042A CN113279042A CN202110568937.9A CN202110568937A CN113279042A CN 113279042 A CN113279042 A CN 113279042A CN 202110568937 A CN202110568937 A CN 202110568937A CN 113279042 A CN113279042 A CN 113279042A
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- Prior art keywords
- barrel
- opening
- drum
- roller
- barrel plating
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- 238000007747 plating Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009713 electroplating Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 33
- 230000004323 axial length Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000004087 circulation Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/16—Apparatus for electrolytic coating of small objects in bulk
- C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
- C25D17/20—Horizontal barrels
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to the technical field of electronic element manufacturing, and discloses a barrel for barrel plating and a using method thereof, wherein the barrel for barrel plating comprises a barrel body and end wall plates arranged at two ends of the barrel body, the barrel body is hollow, the cross section of the barrel body is in a spiral line shape, and the rotation angle of the spiral line from a starting point to an end point is more than 360 degrees, so that the starting point part and the end point part of the spiral line are staggered to form an opening. The starting point part and the terminal point part of the spiral line are staggered to form an opening, so that the opening can be communicated with the electroplating bath, the electroplating solution can smoothly circulate, the concentration of metal ions in the electroplating solution is kept stable, and the quality of the coating and the barrel plating efficiency are improved. In addition, the invention has the advantages of simple manufacture, low cost and simple and convenient use, and is very suitable for the batch production of the small-size patch elements.
Description
Technical Field
The invention relates to the technical field of electronic element manufacturing, in particular to a barrel for barrel plating and a using method thereof.
Background
At present, electronic components are more and more miniaturized to meet the requirement of multi-functionalization of electronic devices. In order to meet the requirements of surface mount on solderability and solderability, after the terminal electrode is formed in the process of chip component, a nickel layer and a tin layer are formed on the terminal electrode by barrel plating. The existing barrel plating roller is provided with a through hole for the circulation of plating solution, the through hole is small enough to prevent small-sized patch elements from flowing out, however, the small through hole makes the circulation of the plating solution difficult, the concentration of metal ions in the plating solution cannot be kept stable, and the quality of the plating layer and the barrel plating efficiency are influenced.
Disclosure of Invention
In view of the above problems, the present invention provides a barrel plating roller and a method for using the same, which solves the problems of difficult circulation of plating solution due to the excessively small through hole of the conventional roller, and the influence on the quality of the plating layer and the barrel plating efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a barrel for barrel plating, which comprises a barrel body and end wall plates arranged at two ends of the barrel body, wherein the barrel body is hollow, the cross section of the barrel body is in a spiral line shape, and the rotation angle of the spiral line from a starting point to an end point is more than 360 degrees, so that the starting point part and the end point part of the spiral line are staggered to form an opening.
Preferably, the helix is an archimedean helix or an equidistant helix.
Preferably, the rotation angle of the spiral line from the starting point to the end point is 375-385 °.
Preferably, the length of the side edge of the opening parallel to the axial direction of the cylinder is less than the axial length of the cylinder and is greater than 9/10 of the axial length of the cylinder.
Preferably, the length of the side edge of the opening, which is orthogonal to the axial direction of the cylinder body, is 20-30 mm.
Preferably, one of the end wall plates arranged at the two ends of the barrel is provided with a feeding opening and a cover plate, and the cover plate covers the feeding opening.
Preferably, the cylinder is in the shape of a right circular cylinder.
Preferably, the cylinder is in the shape of a regular hexagonal prism.
Preferably, the terminal portion of the spiral line is disposed obliquely to the direction in which the starting portion is disposed.
Another aspect of the present invention provides a method of using the barrel plating drum as described above, including:
placing materials in a roller, wherein the materials comprise a to-be-plated patch element and an electroplating medium substance;
immersing the roller into electroplating solution in the electroplating bath, keeping the central axis of the roller horizontal, and enabling an opening on the roller to be positioned at the top of the roller;
introducing a cathode wire into the roller to contact with the material, and arranging an anode wire in the electroplating bath;
rotating the drum at a preset rotating speed so that the electroplating solution flows into the drum through the opening;
and loading direct-current voltage between the cathode and the anode, and carrying out barrel plating on the patch element to be plated.
Compared with the prior art, the roller for barrel plating and the use method thereof have the advantages that:
according to the barrel for barrel plating, the cross section of the barrel is arranged to be in the spiral line form, and the starting point part and the ending point part of the spiral line are staggered to form the opening, so that the opening can be communicated with a plating bath, the plating solution can smoothly circulate, the concentration of metal ions in the plating solution is kept stable, and the plating quality and the barrel plating efficiency are improved.
In addition, the invention has the advantages of simple manufacture, low cost and simple and convenient use, and is very suitable for the batch production of the small-size patch elements.
Drawings
FIG. 1 is a schematic structural view of a barrel plating drum according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a barrel plating drum according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a barrel plating drum according to a second embodiment of the present invention;
FIGS. 4a and 4b are schematic views showing a state in which a chip component is barrel-plated by using the barrel for barrel-plating according to the present invention;
in the figure, 1, a roller; 11. an opening; 12. a barrel; 13. end wall panels; 2. material preparation; 3. an electroplating bath; 4. and (4) electroplating solution.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
First embodiment
As shown in fig. 1 and 2, a barrel for barrel plating according to an embodiment of the present invention includes a barrel 12 and end wall plates 13 disposed at two ends of the barrel 12, wherein the barrel 12 is hollow to accommodate a material 2 composed of a patch element to be plated and a plating medium, and the like, and a cross section of the barrel 12 is in a spiral shape, and a rotation angle of the spiral from a starting point to an end point is greater than 360 °, so that a starting point portion and an end point portion of the spiral are staggered to form an opening 11. As shown in fig. 2, in this embodiment, the center of the spiral line is denoted as point O, the starting point of the spiral line is denoted as point P, the end point of the spiral line is denoted as point Q, and the spiral line rotates clockwise from the starting point P to the end point Q, and the rotation angle is greater than 360 °, so that the point Q protrudes clockwise from the position of the point P, the spiral line portion at and near the point P is denoted as a starting point portion, the spiral line portion at and near the point Q is denoted as an end point portion, and then the starting point portion and the end point portion are disposed in a staggered manner, and an opening 11 communicating with the inside of the spiral line is formed between the starting point portion and the end point portion. It should be noted that in other embodiments, point Q may be the starting point of the spiral, point P is the end point of the spiral, and the spiral is formed by rotating counterclockwise from point Q to point P.
According to the invention, the cross section of the cylinder body 12 is set to be in a spiral line form, and the starting point part and the terminal point part of the spiral line are staggered to form the opening 11, so that the opening 11 can be communicated with the electroplating bath 3, the electroplating solution 4 can smoothly circulate, the concentration of metal ions in the electroplating solution 4 is kept stable, the small-size patch element can be efficiently barrel-plated, good plating quality is obtained, and the contradiction that the patch element is easy to leak from the roller 1 and the electroplating solution 4 is difficult to circulate is solved.
In this embodiment, the cylinder 12 is a straight cylinder and is a spiral cylinder as a whole.
In this embodiment, the spiral is an archimedean spiral. Preferably, the rotation angle of the spiral line from the starting point to the end point is 375 to 385 degrees, for example, 378 degrees, 380 degrees, 383 degrees, etc., so that a certain opening 11 is formed, and the opening 11 is not too large, which not only can achieve the effect of circulating the electroplating solution 4 and preventing the material 2 from flowing out of the opening 11, but also can save the material of the cylinder 12. When the rotation angle is too small, the distance between the material 2 poured from the point P and the opening 11 is too small, and the material is easy to leak from the opening 11; if the rotation angle is too large, the manufacturing difficulty of the drum 1 increases.
In other embodiments, the cross-section of the barrel 12 may be other types of helical shapes, such as an equidistant helical shape.
In this embodiment, the opening 11 has a square shape. The axial length of the cylinder 12 is marked as a, the length of the side edge of the opening 11 parallel to the axial direction of the cylinder 12 is marked as b, and then b < a. Preferably, 0.9a < b < a. The length of the side of the opening 11 perpendicular to the axial direction of the cylinder 12 is denoted as c, and c may be 1mm to 30mm, for example, c may be 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, or the like. Preferably, c is 20mm to 30mm, for example, c may be 22mm, 24mm, 26mm, 28mm, and the like. When b is more than 0.9a and less than a and c is 20mm to 30mm, the cross-sectional area of the flow of the plating solution 4 is large, which is advantageous for improving the flow efficiency of the plating solution 4 and maintaining a stable metal ion concentration.
In this embodiment, one of the end wall plates 13 disposed at the two ends of the cylinder 12 is provided with a feeding port and a cover plate, wherein the feeding port is used for placing the patch element to be plated and the electroplating medium substance in the cylinder 12; the cover plate covers the feeding opening to seal the feeding opening and prevent the material 2 from leaking from the feeding opening. In other embodiments, the end wall plate 13 may not be provided with a material inlet, and the opening 11 may be used as the material inlet.
In this embodiment, all be provided with a plurality of through-holes on the lateral wall of barrel 12 and two end wall boards 13, the size of through-hole slightly is lighter than the size of waiting to plate the paster component to guarantee to wait to plate the paster component and electroplate the medium material and can not pass the through-hole, but the through-hole still can supply 4 circulations of a small amount of plating solution, then plating solution 4 not only can circulate through opening 11, can circulate through the through-hole moreover, has increased the flow area of plating solution 4, is favorable to improving electroplating efficiency.
Second embodiment
This embodiment is substantially the same as the first embodiment except that, as shown in fig. 3, the cylinder 12 in this embodiment has a hollow regular hexagonal prism shape. The cross-section of the barrel 12 is in the shape of a helix. Preferably, the terminal point part of the spiral line is obliquely arranged towards the direction of the starting point part, so that most of the spiral line is in a regular hexagon shape, the terminal point part is in a V shape, the regular hexagon can enable the barrel-plated material 2 to fall in a large range when being turned, the material 2 can be turned sufficiently, and a plating layer with good consistency can be obtained. The V-shape is advantageous to prevent the poured material 2 from leaking out of the opening 11.
The barrel plating roller according to the present invention can be used for barrel plating of chip components having a large size as well as for barrel plating of chip components having a small size, and is particularly suitable for barrel plating of chip components having a small size, for example, small chip components having a 0201 standard (length of 0.6mm and width of 0.3mm), 01005 standard (length of 0.4mm and width of 0.2mm), 008004 standard (length of 0.25mm and width of 0.125mm), and the like.
The barrel plating roller of the present invention can be applied to barrel plating of parts other than patch elements, particularly small-sized parts.
A method of using the barrel plating roller according to the present invention will be described with reference to the barrel plating roller in the first embodiment.
As shown in fig. 4a and 4b, the method of using a barrel plating roller according to the present invention includes:
placing a material 2 in a roller 1, wherein the material 2 comprises a to-be-plated patch element and an electroplating medium substance, such as steel balls and the like, and the material 2 can be placed in a barrel 12 from a feeding port and can also be placed in the barrel 12 from an opening 11;
immersing the drum 1 into the electroplating solution 4 in the electroplating bath 3, keeping the central axis of the drum 1 horizontal, and positioning the opening 11 on the drum 1 at the top of the drum 1;
introducing a cathode wire into the roller 1 to contact with the material 2, and arranging an anode wire in the electroplating bath 3;
rotating the drum 1 at a preset rotation speed so that the plating solution 4 flows into the drum 1 through the opening 11;
and loading direct-current voltage between the cathode and the anode, and carrying out barrel plating on the patch element to be plated.
It should be noted that the arrangement of the cathode lines and the anode lines in the present invention is a conventional arrangement, and will not be described in detail herein.
It should be noted that, the driving manner of the rotation of the drum 1 in the present invention is a conventional manner, for example, a rotor may be disposed at the central axis of the drum 1 to drive the drum 1 to rotate, or gear teeth may be disposed at the outer circumferential side of the drum 1 to drive the rotation of the drum 1 through the meshing transmission of the gears, and the like, and details of the present invention are not repeated.
As shown in fig. 4a, the direction indicated by the arrow R is the rotation direction of the drum 1, and in the present embodiment, the opening 11 of the drum 1 is oriented in the same direction as the rotation direction of the drum 1. In the rotation process of the roller 1, the material 2 is driven by the rotating roller 1 to form a pouring state, one side is high, the other side is low, and two ends are respectively represented by a material 2 with a higher end and a material 2 with a lower end. The opening 11 presses the fresh plating solution 4 outside the drum 1 in accordance with the rotation of the drum 1, so that a pressure difference is generated between the plating solution 4 inside and outside the drum 1, and the fresh plating solution 4 outside the drum 1 flows into the drum 1 through the opening 11 in a direction substantially tangential to the drum 1 at the opening 11, i.e., in a direction indicated by an arrow S in fig. 3 a.
As shown in fig. 4b, when the point P rotates to below the lower end of the material 2, the material 2 starts to pour under gravity onto the inner wall of the barrel 12 at the corresponding position outside the point P. At this time, although the orientation of the opening 11 is inclined downward, because there is a distance between the poured material 2 and the opening 11, and because the orientation of the opening 11 is the same as the rotation direction of the drum 1, the plating solution 4 enters the interior of the cylinder 12 from the opening 11 of the drum 1, and provides a certain thrust to the material 2, so that the material 2 does not leak from the opening 11. Then the roller 1 rotates to the opening 11 and inclines upwards, and the material 2 is poured onto the inner wall of the barrel 12 under the action of gravity and cannot leak from the opening 11. Therefore, the materials 2 can continuously roll when the roller 1 rolls, and cannot leak out of the roller 1, and the electroplating solution 4 inside and outside the roller 1 can be continuously circulated and exchanged in the barrel plating process.
To sum up, the embodiment of the present invention provides a barrel for barrel plating and a method for using the same, wherein the cross section of the barrel 12 is arranged in a spiral line form, and the starting point part and the ending point part of the spiral line are staggered to form an opening 11, so that the opening 11 can be communicated with the plating tank 3, the plating solution 4 can smoothly circulate, the concentration of metal ions in the plating solution 4 is kept stable, and the plating quality and the barrel plating efficiency are improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A barrel plating roller, comprising:
the barrel comprises a barrel body and end wall plates arranged at two ends of the barrel body, wherein the barrel body is hollow, the cross section of the barrel body is in a spiral line shape, and the rotation angle of the spiral line from a starting point to an end point is larger than 360 degrees, so that the starting point part and the end point part of the spiral line are staggered to form an opening.
2. The barrel plating cylinder according to claim 1, wherein the spiral is an archimedean spiral or an equidistant spiral.
3. The barrel plating cylinder according to claim 1, wherein a rotation angle of the spiral line from the starting point to the ending point is 375 ° to 385 °.
4. The barrel plating drum according to claim 1, wherein the length of the side of the opening parallel to the axial direction of the drum body is smaller than the axial length of the drum body and greater than 9/10 of the axial length of the drum body.
5. The barrel plating cylinder according to claim 1, wherein the length of the side of the opening orthogonal to the axial direction of the cylinder body is 20mm to 30 mm.
6. The barrel plating drum according to claim 1, wherein one of the end wall plates provided at both ends of the barrel body is provided with a feed port and a cover plate covering the feed port.
7. The barrel plating drum according to claim 1, wherein the barrel is in a straight cylindrical shape.
8. The barrel plating cylinder according to claim 1, wherein the cylinder has a regular hexagonal prism shape.
9. The barrel plating cylinder according to claim 8, wherein the terminal portion of the spiral is provided obliquely to the direction in which the starting portion is located.
10. A method of using the barrel plating drum according to any one of claims 1 to 9, characterized by comprising:
placing materials in a roller, wherein the materials comprise a to-be-plated patch element and an electroplating medium substance;
immersing the roller into electroplating solution in the electroplating bath, keeping the central axis of the roller horizontal, and enabling an opening on the roller to be positioned at the top of the roller;
introducing a cathode wire into the roller to contact with the material, and arranging an anode wire in the electroplating bath;
rotating the drum at a preset rotating speed so that the electroplating solution flows into the drum through the opening;
and loading direct-current voltage between the cathode and the anode, and carrying out barrel plating on the patch element to be plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568937.9A CN113279042A (en) | 2021-05-24 | 2021-05-24 | Barrel for barrel plating and method of using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568937.9A CN113279042A (en) | 2021-05-24 | 2021-05-24 | Barrel for barrel plating and method of using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113279042A true CN113279042A (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110568937.9A Pending CN113279042A (en) | 2021-05-24 | 2021-05-24 | Barrel for barrel plating and method of using the same |
Country Status (1)
| Country | Link |
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| CN (1) | CN113279042A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804146A (en) * | 2004-12-27 | 2006-07-19 | 同和矿业株式会社 | Plating device and plating method |
| CN101570880A (en) * | 2009-06-05 | 2009-11-04 | 重庆大学 | stream guidance electro-plating roller assembly |
| CN203320168U (en) * | 2013-05-29 | 2013-12-04 | 宁波市明意金属表面处理有限公司 | Galvanized drum for metal surface treatment |
| CN103498187A (en) * | 2013-09-16 | 2014-01-08 | 梅苏鸿 | Rotary type automatic discharge electroplating rolling barrel |
| CN205474085U (en) * | 2016-03-23 | 2016-08-17 | 上虞市顺风金属表面处理有限公司 | A barrel -plating section of thick bamboo |
| CN106119940A (en) * | 2016-08-17 | 2016-11-16 | 河南平高电气股份有限公司 | Method of barrel electroplating and realize the plating cage of the method |
| CN106367798A (en) * | 2016-11-19 | 2017-02-01 | 江苏梦得新材料科技有限公司 | Filter element type barrel plating tank device |
| CN108486644A (en) * | 2018-06-29 | 2018-09-04 | 南通海诚辐条有限公司 | Electro-plating roller |
| CN112593274A (en) * | 2020-11-28 | 2021-04-02 | 中山市华渭金属科技有限公司 | Barrel plating device for hardware used in matching mode and working method of barrel plating device |
| CN215593233U (en) * | 2021-05-24 | 2022-01-21 | 广东风华高新科技股份有限公司 | Barrel for barrel plating |
-
2021
- 2021-05-24 CN CN202110568937.9A patent/CN113279042A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804146A (en) * | 2004-12-27 | 2006-07-19 | 同和矿业株式会社 | Plating device and plating method |
| CN101570880A (en) * | 2009-06-05 | 2009-11-04 | 重庆大学 | stream guidance electro-plating roller assembly |
| CN203320168U (en) * | 2013-05-29 | 2013-12-04 | 宁波市明意金属表面处理有限公司 | Galvanized drum for metal surface treatment |
| CN103498187A (en) * | 2013-09-16 | 2014-01-08 | 梅苏鸿 | Rotary type automatic discharge electroplating rolling barrel |
| CN205474085U (en) * | 2016-03-23 | 2016-08-17 | 上虞市顺风金属表面处理有限公司 | A barrel -plating section of thick bamboo |
| CN106119940A (en) * | 2016-08-17 | 2016-11-16 | 河南平高电气股份有限公司 | Method of barrel electroplating and realize the plating cage of the method |
| CN106367798A (en) * | 2016-11-19 | 2017-02-01 | 江苏梦得新材料科技有限公司 | Filter element type barrel plating tank device |
| CN108486644A (en) * | 2018-06-29 | 2018-09-04 | 南通海诚辐条有限公司 | Electro-plating roller |
| CN112593274A (en) * | 2020-11-28 | 2021-04-02 | 中山市华渭金属科技有限公司 | Barrel plating device for hardware used in matching mode and working method of barrel plating device |
| CN215593233U (en) * | 2021-05-24 | 2022-01-21 | 广东风华高新科技股份有限公司 | Barrel for barrel plating |
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