SUMMERY OF THE UTILITY MODEL
The present invention is directed to a high-density multi-row frame electroplating apparatus, which is designed to overcome the above-mentioned drawbacks of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: constructing a high-density multi-row frame electroplating device, which comprises a conveying assembly and a water container assembly;
the conveying assembly rotates circularly to drive the workpiece to be plated to move;
electroplating holes which penetrate through the conveying assembly from inside to outside are distributed on the conveying assembly along the circumferential direction, so that when the piece to be plated is placed outside the conveying assembly, an electroplating area of the piece to be plated is placed in the electroplating hole area;
the water bladder assembly includes an electrode assembly that ejects an electroplating solution from the electroplating hole from the inside to the outside to electroplate the electroplating region.
Preferably, the conveying assembly comprises a closed caterpillar conveying body, the conveying body comprises conveying plates connected side by side along a conveying direction, and the conveying plates are provided with the electroplating holes.
Preferably, the electrode assembly comprises an electrode body and a water spray nozzle arranged on the electrode body, the water bladder assembly comprises a water bladder cavity for storing electroplating solution, and the water bladder cavity is arranged on the lower side of the electrode assembly.
Preferably, the bottom of the water container cavity is provided with a water feeding hole for introducing electroplating solution into the water container cavity, at least one layer of water distribution plate is arranged in the water container cavity, and water distribution holes are distributed in the water distribution plate for balancing the flow of the introduced electroplating solution.
Preferably, the water container cavity comprises a base and at least one layer of frame body which is stacked upwards on the base, and the water distribution plate is clamped between the combining surfaces which are adjacent to each other up and down on the base and the frame body.
Preferably, an electrode holder for supporting the electrode assembly is arranged on the upper side of the water container cavity, and the electrode holder is a conductor and is communicated with the electrode body;
the upside of water courage subassembly still is equipped with the guide rail that leads to the conveying subassembly.
Preferably, the water container assembly further comprises a water container base located outside the water container cavity, a backflow cavity is formed between the water container base and the outer wall surface of the water container cavity, the upper side of the water container cavity is communicated with the upper side of the electrode body and the flow guide port of the backflow cavity, so that electroplating solution after electroplating flows out of the flow guide port and the backflow cavity.
Preferably, the electroplating device further comprises a driving assembly arranged above the conveying assembly;
the driving assembly comprises two synchronous wheels which are spaced side by side along the conveying direction on the upper side of the conveying assembly, a synchronous belt wound between the two synchronous wheels, a soft adhesive tape wound outside the synchronous belt and a pressure plate arranged on the inner side of the synchronous belt;
the lower side of the soft adhesive tape is attached to the upper side of the conveying assembly, the pressure plate is pressed downwards and is pressed on the inner side of the synchronous belt so as to apply pressure to the soft adhesive tape and press the piece to be plated on the conveying assembly, and the synchronous wheel rotates to drive the conveying assembly to rotate so as to convey the piece to be plated on the conveying assembly.
Preferably, the driving assembly further comprises an adjusting mechanism for adjusting the high-low position of the pressure plate so as to adjust the downward pressure of the soft adhesive tape.
Preferably, the adjusting mechanism comprises a supporting plate and an adjusting plate which are arranged on the upper side of the pressure plate, the adjusting plate is arranged on the lower side of the supporting plate, a screwed adjusting piece and a guide post which extends downwards are arranged on the supporting plate, the adjusting piece rotates to prop against the adjusting plate downwards, and the guide post penetrates through the adjusting plate to guide the adjusting plate to move up and down;
an elastic piece is arranged between the adjusting plate and the pressure plate, the adjusting piece rotates to downwards support the adjusting plate, and the height position of the adjusting plate is adjusted to adjust the pressure applied by the elastic piece to the pressure plate and the soft adhesive tape.
The high-density multi-row frame electroplating device has the following beneficial effects: the conveying assembly is more even when rotating, and is also more even stable to the flow of the electroplating solution that the electroplating hole sprays, and the position is more accurate for the thickness distribution of electroplating on the plated item is also more even, makes the production process of product control more easily, has promoted the yield of product, has also reduced the waste of electroplating solution, has practiced thrift the quantity of metal object in the electroplating solution.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the high-density multi-row frame plating apparatus in a preferred embodiment of the present invention includes a conveying assembly 1 and a water tank assembly 2, and in this embodiment, the plating apparatus is used for plating silver, and the plating apparatus is used for plating plated parts such as high-density multi-row IC lead frames, and can also be used for plating other materials.
The conveying assembly 1 rotates circularly to drive the workpiece to be plated to move; the transmission assembly 1 is circumferentially provided with inner and outer through electroplating holes A, so that when a workpiece to be plated is placed outside the transmission assembly 1, an electroplating area of the workpiece to be plated is placed in the area of the electroplating holes A.
The water bladder assembly 2 includes an electrode assembly 21, and the electrode assembly 21 sprays the plating solution from the plating hole a from the inside to the outside to plate the plating area.
Conveying assembly 1 is when rotating, and speed is more even, and is also more even stable to the flow of the plating solution of electroplating hole A injection, and the position is more accurate for the thickness distribution of electroplating on the plated item is also more even, makes the production process of product control more easily, has promoted the yield of product, has also reduced the waste of plating solution, has practiced thrift the quantity of metal object in the plating solution.
The conveying assembly 1 comprises a closed caterpillar-shaped conveying body 11, the conveying body 11 comprises conveying plates 111 connected side by side along a conveying direction, and an ear ring and an ear needle which are connected between two adjacent conveying plates 111 and play a serial role, the ear needle penetrates through the ear ring and is inserted into the conveying plates 111 laterally, and the ear needle can also play a role of a rotating shaft. The transfer plate 111 is provided with plating holes a from which the plating liquid is ejected to areas of the plated item to be plated. The conveying body 11 can be used as a carrier for supporting the electroplated part and pushing the electroplated part to move, so that the electroplated part is driven to do linear motion in the horizontal direction, and the electroplating liquid is guided to be sprayed to the position, needing electroplating, of the electroplated part, so that the electroplating effect of the electroplated part is determined.
In some embodiments, the electrode assembly 21 includes an electrode body 211, and a water spout 212 disposed on the electrode body 211, the water bladder assembly 2 further includes a water bladder chamber 22 for storing the plating solution, the water bladder chamber 22 is disposed at the lower side of the electrode assembly 21, and the plating solution in the water bladder chamber 22 is sprayed upwards to the plating hole a through the water spout 212 by the pump body to be plated on the plated member.
In order to replenish the plating liquid into the chamber 22, the bottom of the chamber 22 is provided with a water inlet hole 221 for introducing the plating liquid into the chamber 22. Two layers of water distribution plates 23 are arranged in the water container cavity 22, water distribution holes 231 are distributed on the water distribution plates 23 to balance the flow of introduced electroplating solution, when the electroplating solution at the lower part flows upwards, the speed and the flow are more balanced, and the content distribution of electroplating substances in the electroplating solution is also uniform. Of course, one or more layers of water diversion plates 23 can be arranged in the water bladder cavity 22 to equalize the flow of the electroplating solution.
Preferably, the water bladder cavity 22 includes a base 222 and two layers of frame bodies 223 stacked upward on the base 222, the water diversion plate 23 is clamped between the combining surfaces of the base 222 and the frame bodies 223 adjacent to each other, so as to facilitate the assembly and disassembly of the water diversion plate 23, the number of the water diversion plates 23 may be one or more layers as required, and accordingly, the number of the water diversion plates 23 and the number of the frame bodies 223 may be correspondingly the same, so as to facilitate the clamping and fixing of the water diversion plates 23. Of course, the base 222 and the frame 223 of the bladder cavity 22 may be an integral structure, and the bladder cavity 22 has a leg on the inner wall to fix the water diversion plate 23.
In order to energize the electrode body 211, an electrode holder 224 for supporting the electrode assembly 21 is provided on the upper side of the water bladder chamber 22, and the electrode holder 224 is a conductor and is electrically connected to the electrode body 211.
Further, the upper water hole 221 of the base 222, the water container cavity 22 and the electrode seat 224 together form an upper water cavity B, which is a plating solution spraying area.
The upper side of the water container component 2 is also provided with a guide rail 24 for guiding the conveying component 1, so that the conveying direction of the conveying component 1 can be limited, and poor electroplating caused by dislocation of the electroplating hole A and the water spraying port 212 of the electrode component 21 is avoided.
In some embodiments, the water tank assembly 2 further includes a water tank base 25 located outside the water tank cavity 22, and a reflow cavity C is formed between the water tank base 25 and the outer wall surface of the water tank cavity 22 as a discharge area for the plating solution after electroplating to flow out.
A flow guide opening D which is communicated with the upper side of the electrode body 211 and the reflux cavity C is formed on the upper side of the water container cavity 22, so that the electroplated plating solution flows out through the flow guide opening D and the reflux cavity C.
It can be understood that the electroplating solution is sprayed to the upper water cavity B from the upper water hole 221 in the base 222, after being divided by the two layers of water dividing plates 23, the electroplating solution with more balanced flow rate is sprayed to the conveying body 11 circularly rotating on the guide rail 24 through the water spraying holes on the block-shaped electrode body 211, the conveying assembly 1 presses the electroplating workpiece to the surface of the conveying plate 111, the electroplated electroplating solution flows into the water returning cavity through the diversion trench, and finally is discharged out of the electroplating device through the water returning cavity C.
The electroplating device further comprises a driving assembly 3 arranged above the conveying assembly 1, wherein the driving assembly 3 comprises two synchronous wheels 31 arranged on the upper side of the conveying assembly 1 at intervals side by side along the conveying direction, a synchronous belt 32 wound between the two synchronous wheels 31, a soft rubber belt 33 wound outside the synchronous belt 32 and a pressure plate 34 arranged on the inner side of the synchronous belt 32.
The lower side of the soft adhesive tape 33 is attached to the upper side of the conveying assembly 1, the pressure plate 34 is pressed downwards on the inner side of the synchronous belt 32 so as to apply pressure to the soft adhesive tape 33 and press the part to be plated on the conveying assembly 1, and the synchronous wheel 31 rotates to drive the conveying assembly 1 to rotate so as to convey the part to be plated on the conveying assembly 1.
As shown in fig. 2 and 3, the driving assembly 3 further includes an adjusting mechanism 35 for adjusting the height position of the pressure plate 34 to adjust the downward pressure of the soft adhesive tape 33, so as to ensure that the pressure on the electroplated parts is not too high when electroplated with electroplated parts of different thicknesses.
Specifically, in some embodiments, the adjusting mechanism 35 includes a supporting plate 351 disposed on the upper side of the pressure plate 34, an adjusting plate 352, the adjusting plate 352 is disposed on the lower side of the supporting plate 351, the supporting plate 351 is provided with a screw-connected adjusting member 353, and a downwardly extending guiding post 354, the adjusting member 353 rotates to abut against the adjusting plate 352, and the guiding post 354 penetrates through the adjusting plate 352 to guide the adjusting plate 352 to move up and down.
An elastic member 355, such as a spring, is provided between the adjusting plate 352 and the pressure plate 34 to support the adjusting plate 352 and provide a downward elastic force to the pressure plate 34, and when the screw position of the adjusting member 353 is adjusted, the height position of the adjusting plate 352 is adjusted by the elastic force of the elastic member 355, thereby adjusting the pressure applied by the elastic member 355 to the pressure plate 34 and the soft adhesive tape 33. In other embodiments, the adjustment plate 352 can be eliminated and the resilient member 355 can be fitted over the adjustment member 353 and abut between the adjustment member 353 and the pressure plate 34.
In the actual electroplating process, because the electroplated part can move continuously in the horizontal direction, the deformation of the electroplated workpiece is reduced more effectively, meanwhile, the sliding speed of the conveying body 11 on the guide rail 24 determines the running speed of the electroplated part, the sliding speed of the caterpillar conveying body 11 on the guide rail 24 is determined by the running speed of the soft rubber belt 33, the running speed of the soft rubber belt 33 is finally determined by the synchronizing wheel 31, the running speed of the electroplated workpiece can be increased only by increasing the rotating speed of the synchronizing wheel 31, the electroplating application range is expanded, and meanwhile, the electroplating efficiency is ensured.
The electroplating solution is more balanced through two-layer water distribution plate 23, and the flow of the electroplating solution is more balanced, so that the electroplating effect can be more effectively ensured, the electroplated electroplating solution can be timely guided and discharged in the water container cavity 22, the splashing and volatilization of the electroplating solution on a large scale are reduced, the safety is improved, and the waste of noble metals is also reduced.
The utility model provides an electroplating device's plating solution is more even stable at the flow in last water cavity B, and the product thickness distribution after the electroplating is more even. The conveying body 11 slides on the horizontal guide rail 24 to continuously run under the action of the belt thrust, so that the speed is more uniform, and the electroplating is more stable. The plating solution flows back after the electroplating is finished, so that the splashing waste and volatilization of the liquid medicine caused by the stay period of the liquid on the upper part of the electrode body 211 are reduced, and the consumption of noble metals is saved.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.