Electroplating apparatus and electroplating method for large-size molded capacitor

Abstract

A kind of electroplating device and electroplating method of large size mould pressing capacitor, electroplating device includes plating barrel, multiple partition compartments and electroplating protection tool, multiple partition compartments are arranged at intervals in plating barrel, for placing electroplating protection tool;Plating barrel includes plating compartment formed in its interior and multiple partition plates arranged at intervals in plating compartment, and the partition compartment is formed between the two adjacent partition plates;Electroplating protection tool is used to install mould pressing capacitor;By setting electroplating protection tool, mould pressing capacitor is installed and limited protection, so that it does not collide with each other and is connected with barrel wall or partition plate in electroplating process, causing a series of undesirable phenomena such as deformation of mould pressing capacitor pin frame;At the same time, large size mould pressing capacitor batch electroplating production can be realized, production efficiency is improved under the premise of ensuring product quality, production cost is saved, it is simple and convenient to operate, and it is suitable for mass production.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of preparation of molded capacitors, and particularly relates to a plating device and a plating method for large-size molded capacitors. BACKGROUND

[0002] When plating large-size molded capacitors, the rolling plating method is adopted, and after rolling plating, the molded plastic package shell is prone to scratches, breakage, pin scratches and distortion, and the plating layer is uneven, which is difficult to meet the production demand under the condition of ensuring the quality; the traditional rolling plating method has great restriction on batch production, has high unqualified rate and slow production, and needs to be further improved. SUMMARY

[0003] The application aims to overcome the defects of the prior art, and provides a plating device for large-size molded capacitors, and another object is to provide a method for plating molded capacitors based on the plating device

[0004] The application adopts the following technical scheme:

[0005] A plating device for large-size molded capacitors comprises a plating barrel, a plurality of partition compartments and a plating protection jig,

[0006] The plurality of partition compartments are arranged at intervals in the plating barrel and used for placing the plating protection jig;

[0007] The plating barrel comprises a plating compartment formed in the inside thereof and a plurality of partition plates arranged at intervals in the plating compartment, the partition compartments are formed between the adjacent two partition plates, and the outer side surface, the top surface, the bottom surface and the partition plates of the plating barrel are all provided with liquid passing holes;

[0008] The plating protection jig is used for mounting the molded capacitor and comprises a support seat, a protection seat and a positioning disc, the support seat comprises a support seat body and a mounting shaft extending upwardly arranged on the support seat body; the protection seat is detachably arranged on the support seat body and comprises a protection seat body, a gap hole arranged on the protection seat body for the mounting shaft to pass through and a mounting slot arranged on the protection seat body for mounting the molded capacitor; the positioning disc is arranged on the support seat to limit the position of the protection seat and comprises a positioning disc body and a fixing member arranged between the support seat and the positioning disc body.

[0009] Further, the protection seat further comprises a limiting member arranged on the protection seat body for fixing the molded capacitor in the mounting slot, the limiting member comprises a limiting rod with one end connected with the protection seat body and the other end extending to the top of the mounting slot and a limiting bolt for fixing the limiting rod on the protection seat body.

[0010] Further, the protection seat body comprises a square main body segment and four mounting portions arranged around the square main body segment, the gap hole is arranged on the main body segment, and the mounting slot is arranged inwardly from the surface of the mounting portion.

[0011] Further, the main body section is formed with a weight-reducing groove extending downward from the top surface thereof and communicating with the accommodation hole.

[0012] Further, the protective seat further comprises a limiting member arranged on the protective seat body and used for fixing the molded capacitor in the mounting groove, the limiting member comprising a limiting rod having one end connected with the protective seat body and the other end extending to the top of the mounting groove, and a limiting bolt used for fixing the limiting rod on the protective seat body.

[0013] Further, the fixing member comprises a threaded section arranged at the end of the mounting shaft, a through hole arranged on the positioning disc body and used for the threaded section to pass through, and a fixing nut used for fixing the positioning disc on the mounting shaft in cooperation with the threaded section.

[0014] Further, the support seat body is provided with a plurality of first exchange holes distributed in a circle, and the positioning disc is provided with a plurality of second exchange holes corresponding to the plurality of first exchange holes.

[0015] Further, the support seat body and the positioning disc body are both provided with a plurality of weight-reducing holes.

[0016] Further, the plurality of weight-reducing holes are arranged around the plurality of first exchange holes or the plurality of second exchange holes.

[0017] A plating method of large-size molded capacitors, comprising the following steps:

[0018] Step one, install the molded capacitors into the opposite mounting grooves one by one, and then place the plating protective fixture in the partition compartment, so that the plating protective fixture is vertically arranged in the partition compartment, that is, the axis of the mounting shaft is arranged in the same direction as the length direction of the plating barrel;

[0019] Step two, place the plating barrel with the plating protective fixture horizontally in the plating liquid pool, and make the plating liquid in the plating liquid pool reach two-thirds of the horizontal placement height of the plating barrel;

[0020] Step three, drive the plating barrel to rotate, so that the plating protective fixture in the partition compartment rotates, to complete the plating on the surface of the molded capacitor.

[0021] From the above description of the present application, compared with the prior art, the beneficial effects of the present application are:

[0022] The present application installs and protects the molded capacitors by arranging the plating protective fixture, so that the molded capacitors will not collide with each other, and will not be hooked with the barrel wall or the partition plate to cause the deformation of the pin frame of the molded capacitors during the plating process; at the same time, the present application can realize the batch plating production of large-size molded capacitors, improve the production efficiency under the premise of ensuring the product quality, save the production cost, and is simple and convenient to operate, and is suitable for mass production. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 This is a schematic diagram of the electroplating apparatus.

[0024] Figure 2 This is a cross-sectional view of the electroplating apparatus in the electroplating state.

[0025] Figure 3 Schematic diagram of the structure of electroplating protective fixture Figure 1 ;

[0026] Figure 4 Schematic diagram of the structure of electroplating protective fixture Figure 2 ;

[0027] Figure 5 Schematic diagram of the protective base Figure 1 ;

[0028] Figure 6 Schematic diagram of the protective base Figure 2 ;

[0029] In the diagram, 1-plating tank, 2-dividing compartment, 3-electroplating protective fixture, 4-weight reduction hole, 5-molded capacitor, 11-plating tank, 12-partition, 13-liquid passage hole, 31-support base, 32-protective base, 33-positioning plate, 311-support base body, 312-mounting shaft, 313-first exchange hole, 321-protective base body, 3211-square main body section, 3212-upper mounting part, 3213-lower mounting part, 322-clearance hole, 323-mounting groove, 324-limiting component, 3241-limiting rod, 3242-limiting bolt, 325-weight reduction groove, 331-positioning plate body, 332-fixing component, 3321-threaded section, 3322-through hole, 3323-fixing nut, 333-second exchange hole. Detailed Implementation

[0030] The present invention will be further described below through specific embodiments.

[0031] Reference Figures 1 to 6 As shown, an electroplating apparatus for a large-size molded capacitor includes a plating tank 1, multiple partitioned chambers 2, and an electroplating protective fixture 3; specifically, the size of the molded capacitor is between 20mm*20mm and 50mm*50mm.

[0032] Multiple compartments 2 are spaced apart in the plating tank 1 to hold electroplating protective fixtures 3.

[0033] The plating barrel 1 comprises a plating compartment 11 formed inside the plating barrel 1 and a plurality of partition plates 12 arranged in the plating compartment 11, and a plating compartment 2 is formed between any two adjacent partition plates 12; specifically, the outer side, top surface, bottom surface of the plating barrel 1 and the partition plates are all provided with liquid passing holes 13 to facilitate the exchange of electroplating liquid and gas; further, the plating barrel 1 is provided with a rotating shaft and a conductive device, but these are not the focus of the present application, and their structures will not be described further.

[0034] The electroplating protection jig 3 for mounting the molded capacitor 5 comprises a support seat 31, a protection seat 32 and a positioning disc 33, the protection seat 32 is arranged between the support seat 31 and the positioning disc 33, and the molded capacitor 5 is mounted in the protection seat 32; specifically, the electroplating protection jig 3 is integrally processed from corrosion-resistant plastic, so that it does not have too much weight in the electroplating liquid to be unable to rotate and roll; further, the height of the electroplating protection jig 3 is slightly greater than the distance between the two partition plates 12.

[0035] The support seat 31 comprises a support seat body 311 and a mounting shaft 312 arranged on the support seat body 311 and extending upward for mounting the protection seat 2; specifically, the support seat body 311 is provided with a plurality of first exchange holes 313 and weight reduction holes 4 distributed in a circle, and the plurality of weight reduction holes 4 are arranged around the first exchange holes 313; the first exchange holes 313 and the weight reduction holes 4 are arranged to facilitate the flow of the electroplating liquid and reduce the overall weight of the support seat.

[0036] The protection seat 32 is detachably arranged on the support seat 31 and comprises a protection seat body 321, a gap hole 322 arranged on the protection seat body 321 for the mounting shaft 312 to pass through, a mounting groove 323 arranged on the protection seat body 321 for mounting the molded capacitor 5, and a limiting piece 324 arranged on the protection seat body 321 for fixing the molded capacitor 5 in the mounting groove 323; when the molded capacitor 5 is electroplated, the molded capacitor 5 is placed in the opposite mounting groove 323, and then the limiting piece 324 is used to limit the molded capacitor 5 in the mounting groove 323 to prevent it from separating from the mounting groove 323, thereby ensuring the smooth progress of the electroplating operation.

[0037] The protection seat body 321 comprises a square main body section 3211 and four mounting portions arranged around the square main body section 3211, the gap hole 322 is arranged on the main body section 3211, and the mounting groove 323 is arranged extending inward from the surface of the mounting portion; specifically, the square main body section 3211 is formed with a weight reduction groove 325 extending downward from the top surface thereof and communicating with the gap hole 322 to reduce the overall weight of the protection seat 32; further, the mounting portion comprises an upper mounting portion 3212 and a lower mounting portion 3213 arranged opposite to each other on the side surface of the square main body section 3211, and the distance between the upper mounting portion 3212 and the lower mounting portion 3213 is greater than the length of the molded capacitor 5 to prevent the molded capacitor 5 from separating from the mounting portion laterally.

[0038] The limiting member 324 includes a limiting rod 3241 connected to the upper mounting portion 3212 at one end and extending downward to the top of the mounting groove 323, and a limiting bolt 3242 for fixing the limiting rod 3241 on the upper mounting portion 3212. After the molded capacitor 5 is completed, the limiting rod 3241 is placed outside the mounting portion and abuts against the top surface of the molded capacitor 5, and then the limiting rod 3241 is fixed by the limiting bolt 3242, so as to prevent the molded capacitor 5 from being separated from the mounting portion in the mounting direction and ensure the smooth progress of the electroplating operation.

[0039] The positioning disc 33 is arranged on the mounting shaft 312 to define the position of the protection seat 32, and includes a positioning disc body 331 and a fixing member 332 arranged between the support seat 31 and the positioning disc body 331. Specifically, the positioning disc body 331 is provided with a second exchange hole 333 corresponding to each of the first exchange holes 313, and a plurality of lightening holes 4 arranged around the second exchange hole 333.

[0040] The fixing member 332 includes a threaded segment 3321 arranged at the end of the mounting shaft 312, a through hole 3322 arranged on the positioning disc body 331 for the threaded segment 3321 to pass through, and a fixing nut 3323 cooperating with the threaded segment 3321 to fix the positioning disc 33 on the mounting shaft 312. The electroplating protection jig 3 is fixed between the support seat 31 and the positioning disc 33 by cooperation of the fixing nut 3323 and the threaded segment 3321.

[0041] The electroplating method for large-size molded capacitors based on the electroplating device includes the following steps:

[0042] Step one: Install the molded capacitors 5 one by one into the opposite mounting grooves 323, and then place the electroplating protection jig 3 in the partition compartment 2, so that the electroplating protection jig 3 is arranged in a vertical state in the partition compartment 2, that is, the axis of the mounting shaft 312 is arranged in the same direction as the length direction of the plating barrel 1;

[0043] Step two: Place the plating barrel 1 with the electroplating protection jig 3 placed therein horizontally in the plating liquid pool, and make the electroplating liquid in the plating liquid pool reach two-thirds of the horizontal placement height of the plating barrel 1;

[0044] Step three: Drive the plating barrel 1 to rotate, so that the electroplating protection jig 3 in the partition compartment 2 rotates, to complete the electroplating on the surface of the molded capacitor 5.

[0045] The electroplating protection jig 3 is arranged to install and limit the protection of the molded capacitors 5, so that the molded capacitors 5 do not collide with each other and are not hooked with the barrel wall or the partition plate 12 during the electroplating process, thereby preventing the deformation of the pin frame of the molded capacitors. At the same time, batch electroplating production of large-size molded capacitors can be realized, the production efficiency is improved under the premise of ensuring product quality, the production cost is saved, the operation is simple and convenient, and it is suitable for mass production.

[0046] The above description is only the preferred embodiment of the present application, and cannot limit the scope of the present application. Any equivalent changes and modifications made according to the patent application scope and the content of the present application should still be within the scope of the present application.

Claims

1. A plating apparatus for large size molded capacitors, characterized by: The plating barrel, the plurality of partition compartments and the electroplating protection jig, The plurality of partition compartments are arranged in the plating barrel and used for placing the electroplating protection jig. The plating barrel comprises a plating compartment formed in the inside of the plating barrel and a plurality of partition plates arranged in the plating compartment, the partition compartments are formed between two adjacent partition plates, and the plating barrel is provided with liquid passing holes on the outer side, the top surface and the bottom surface and on the partition plates. The electroplating protection jig is used for mounting the molded capacitor and comprises a supporting seat, a protection seat and a positioning disc. The protection seat is detachably arranged on the supporting seat body and comprises a protection seat body, a gap hole arranged on the protection seat body and used for allowing the mounting shaft to pass through and a mounting slot arranged on the protection seat body and used for mounting the molded capacitor. The positioning disc is arranged on the supporting seat and used for limiting the position of the protection seat and comprises a positioning disc body and a fixing member arranged between the supporting seat and the positioning disc body. The electroplating method based on the above electroplating device for the large-size molded capacitor comprises the following steps. In step one, the molded capacitors are mounted into the opposite mounting slots one by one, and then the electroplating protection jig is placed in the partition compartment, so that the electroplating protection jig is arranged in the vertical state in the partition compartment, that is, the axis of the mounting shaft is arranged in the same direction as the length direction of the plating barrel. In step two, the plating barrel with the electroplating protection jig arranged therein is arranged in the transverse direction in the plating liquid pool, and the electroplating liquid in the plating liquid pool is arranged to reach two-thirds of the height of the transverse arrangement of the plating barrel.

2. The apparatus of claim 1, wherein: In step three, the plating barrel is driven to rotate, so that the electroplating protection jig in the partition compartment rotates, thereby completing the electroplating on the surface of the molded capacitor.

3. The apparatus of claim 1, wherein: the first and second electrodes are substantially parallel to each other; and the first and second electrodes are substantially parallel to the first and second surfaces of the substrate. The protection seat further comprises a limiting member arranged on the protection seat body and used for fixing the molded capacitor in the mounting slot, the limiting member comprises a limiting rod having one end connected with the protection seat body and the other end extended to the top of the mounting slot and a limiting bolt used for fixing the limiting rod on the protection seat body.

4. The apparatus of claim 3, wherein: The protection seat body comprises a square main body segment and four mounting portions arranged around the square main body segment, the gap hole is arranged on the main body segment, and the mounting slot is arranged on the mounting portion and extends inwardly from the surface of the mounting portion.

5. The apparatus of claim 1 wherein: the mandrel is a cylindrical mandrel having a diameter of at least 1.5 inches; and the mandrel is formed of a material selected from the group consisting of aluminum, steel, and copper. The main body segment is formed with a weight-reducing groove extending downwardly from the top surface thereof and communicated with the gap hole.

6. The apparatus of claim 1 wherein: the mandrel is a cylindrical mandrel having a diameter of at least 1.5 inches; and the mandrel is formed of a material selected from the group consisting of aluminum, steel, and copper. The protection seat further comprises a limiting member arranged on the protection seat body and used for fixing the molded capacitor in the mounting slot, the limiting member comprises a limiting rod having one end connected with the protection seat body and the other end extended to the top of the mounting slot and a limiting bolt used for fixing the limiting rod on the protection seat body.

7. The apparatus of claim 1 wherein: the mandrel is a cylindrical mandrel having a diameter of at least 1.5 inches; and the mandrel is formed of a material selected from the group consisting of aluminum, steel, and copper. The fixing member comprises a threaded segment arranged on the end portion of the mounting shaft, a through hole arranged on the positioning disc body and used for allowing the threaded segment to pass through and a fixing nut matched with the threaded segment and used for fixing the positioning disc on the mounting shaft.

8. The apparatus of claim 7, wherein: the first and second electrodes are substantially parallel to each other; and the first and second electrodes are substantially parallel to the first and second surfaces of the substrate. The supporting seat body is provided with a plurality of first exchange holes distributed in the circumferential direction, and the positioning disc is provided with a plurality of second exchange holes corresponding to the plurality of first exchange holes.

9. The electroplating apparatus for a large-size molded capacitor according to claim 8, characterized in that: The supporting seat body and the positioning disc body are both provided with a plurality of weight-reducing holes. The plurality of weight-reducing holes are arranged around the plurality of first exchange holes or the second exchange holes.

Images