CN214327940U - Continuous local tinning stack - Google Patents

Abstract

The utility model relates to a continuous local tinning stack, it includes that base, fixed connection locate the outside and inside hollow negative pole conducting rod of negative pole conducting rod, coaxial cover of base, be fixed in the base and stretch into the inside and dip the positive pole conducting rod in the plating solution of negative pole conducting rod, the negative pole conducting rod is established and is rotated including coaxial cover and connect in the bearing wheel of negative pole conducting rod outer wall, can dismantle connect in bearing wheel circumference outer wall and with the electroplating belt of waiting to plate the material and take the laminating, bearing wheel circumference outer wall runs through, the electroplating belt is seted up and is supplied the annular of the inside plating solution outflow of negative pole conducting rod to electroplate mouthful, sealing connection between electroplating belt edge and the bearing wheel, the surface laminating that the electroplating belt deviates from the negative pole conducting rod has the shielding clitellum, the shielding clitellum laminating is in the both sides of electroplating mouthful. This application has the effect that can realize local tin-plating and application scope is big.

Description

Continuous local tinning stack

Technical Field

The application relates to the field of electroplating, in particular to a continuous local tinning device.

Background

Tin is a silvery white metal, is nontoxic, has good welding and ductility and the like, is widely applied to the industries of electronics, food, automobiles and the like, and is mainly plated with alkaline and acidic electrotinning solutions, wherein the acidic systems comprise sulfate, methylsulfonic acid systems, fluoroboric acid systems and the like. The tin layer has the characteristics of high chemical stability, oxidation resistance in air and difficult discoloration, so that the tin layer is commonly used for electroplating of electronic component leads, printed circuit boards, can containers and low-voltage devices.

Chinese patent publication No. CN 209759607U discloses a continuous local tinning device, which comprises a liquid-bearing groove and a tinning workbench; the tinning workbench comprises a base; the base is provided with an electrolysis component, a track limiting component and a material pressing component; the electrolytic component comprises a cathode conducting rod and a cathode conducting wheel; the cathode conductive wheel is a hollow wheel; the cathode conductive wheel is provided with an annular liquid inlet for the electroplating solution to flow in and a liquid outlet for the electroplating solution to flow out; a liquid inlet pipe corresponding to the liquid inlet and a first holding tank corresponding to the liquid inlet pipe are arranged on the base; the electrolytic component also comprises an anode conducting rod which is fixed with the base and extends into the electroplating solution in the cathode conducting wheel; the cathode conductive wheel is provided with an annular avoidance groove corresponding to the anode conductive rod and a plurality of transverse reinforcing connecting rods; the outer circle surface of the cathode conductive wheel is provided with an electroplating notch communicated with the inner space of the cathode conductive wheel and an annular first electroplating shielding belt.

In view of the above-mentioned related technologies, the inventor believes that, in the electroplating process, the electroplating solution flows to the surface of the strip to be electroplated through the electroplating gap, and the size of the electroplating gap is fixed, so that the position and the shape of the electroplating can be fixed, and the application range is limited.

SUMMERY OF THE UTILITY MODEL

In order to be convenient for be suitable for more electroplating demands, the application provides a continuous local tinning device.

The application provides a continuous local tinning stack adopts following technical scheme:

the utility model provides a continuous local tinning stack, includes that base, fixed connection locate the outside and inside hollow negative pole conducting rod of negative pole conducting rod, coaxial cover of base, be fixed in the base and stretch into the inside and dip the positive pole conducting rod in the plating solution of negative pole conducting rod, the negative pole conducting rod is established and is rotated including coaxial cover and connect in the carrier wheel of negative pole conducting rod outer wall, can dismantle connect in carrier wheel circumference outer wall and with the electroplating belt of waiting to plate the material area laminating, carrier wheel circumference outer wall runs through, the electroplating belt is seted up and is supplied the inside electroplating solution of negative pole conducting rod to flow and electroplate the mouth, sealing connection between electroplating belt edge and the carrier wheel, the surface laminating that the electroplating belt deviates from the negative pole conducting rod has the shielding clitellum, the shielding clitellum is laminated in the both sides of electroplating the mouth.

Through adopting above-mentioned technical scheme, if the position and the width of the required fashioned plating layer are different, only need to carry out whole dismantlement to the electroplating area change can, can enlarge the electroplating scope that it was suitable for, need not directly to change whole device, make same device can the shaping treat the plating layer of the different width and positions in the electroplating area.

Optionally, the carrier wheel includes two wheel boards that parallel, connects the spliced pole between two wheel boards, two wheel board center sleeve is established and is rotated and connect in the electrically conductive wheel of negative pole, the electroplating area includes and is two partial shipment areas that centrosymmetric set up with the electrically conductive pole center of negative pole, the sealed dismantlement of partial shipment area both sides is connected between two wheel board relative lateral walls, two sealing connection between the partial shipment area.

Through adopting above-mentioned technical scheme, utilize two partial shipment areas that are semicircle to form a whole circle between combined installation to two round boards, thereby be convenient for change the installation, and make and keep sealed between the edge in partial shipment area and the relative lateral wall of round board, make the plating solution that bears between two round boards and the partial shipment area can not follow partial shipment area edge seepage, can only follow the outside outflow of electroplating mouth and form required plating layer on treating plating material area surface.

Optionally, the equal integrated into one piece in both sides edge of branch dress area has the mounting panel parallel with the wheel board, the sealed lateral wall that laminates in the wheel board back of the body of mounting panel, can dismantle between mounting panel and the wheel board and be connected.

Through adopting above-mentioned technical scheme, utilize the mounting panel can promote the area of contact between partial shipment area and the wheel board, can promote the sealing performance between mounting panel and the wheel board lateral wall simultaneously.

Optionally, the mounting panel is sealed to be laminated in the lateral wall that the wheel board carried on the back mutually, wheel board periphery wall inlays and is equipped with the sealing washer that sets up with the sub-packaging in-band wall seal, be provided with connecting bolt between wheel board and the sub-packaging area.

Through adopting above-mentioned technical scheme, after will divide packing area and mounting panel to the outer circular wall of round board, rely on the sealing washer can promote the outer circular wall of round board and the sealing performance between the partial shipment area to under connecting bolt's the effect of compressing tightly, can realize fixed connection between round board and the partial shipment area, also can promote the sealing performance between round board and the partial shipment area simultaneously.

Optionally, the electroplating opening is provided with a plurality of electroplating openings, the electroplating openings are uniformly arranged along the width direction of the split charging belt, and the electroplating openings are different in width.

Through adopting above-mentioned technical scheme, can be according to actual need, can once only be at the surface shaping many not unidimensional plating layers in material area to can enlarge its application scope.

Optionally, the sealed closing piece that inlays in the electroplating port, the closing piece deviates from one side cambered surface of negative pole conducting rod and the one side cambered surface that the partial shipment area deviates from the negative pole conducting rod and is same cambered surface setting.

By adopting the technical scheme, when one electroplating opening with a specified size is selected, the sealing block in the electroplating opening is taken out, and other sealing blocks in the unused electroplating openings are plugged in, so that the sealing block and the electroplating opening keep a sealing relationship, and an electroplated layer with corresponding requirements can be formed on the surface of the material belt.

Optionally, the outer circumferential wall of the sealing block is provided with an outflow port with a size smaller than that of the electroplating port, and the outflow port penetrates through the sealing block.

Through adopting above-mentioned technical scheme, fill in the interior stopper of closing in of electroplating mouthful after, can reduce the size of electroplating mouthful through the egress opening to can select to use electroplating mouthful or egress opening according to the demand of actual electroplating, further enlarge its application scope.

Optionally, the partial shipment area deviates from the cathode conducting rod lateral wall and has two spacing rings that are annular and relative setting along the axial sliding connection of cathode conducting rod, be provided with spacing bolt between spacing ring and the partial shipment area.

Through adopting above-mentioned technical scheme, utilize the spacing ring of two relative settings, can carry on spacingly to the material area in electroplating process to the material area of applicable different width.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the electroplating belts connected with the outer circumferential wall of the bearing wheel in a sealing and detachable mode can be used for selecting the electroplating belts with electroplating openings of different sizes according to the width of an electroplated layer to be formed actually, so that the application range of the whole equipment is expanded;

2. the electroplating openings with different shapes and sizes and the sealing blocks connected in the electroplating openings in a sealing mode can be used for electroplating according to the requirements of more situations.

Drawings

FIG. 1 is a sectional view of a continuous partial tinning apparatus of example 1, which is taken along line A-A in FIG. 3.

Fig. 2 is an enlarged view of a portion I of fig. 1.

Fig. 3 is a front view of a continuous partial tinning apparatus of example 1.

FIG. 4 is a partial cross-sectional view of a continuous partial tinning apparatus according to example 2.

FIG. 5 is a partial cross-sectional view of a continuous partial tinning apparatus according to example 3.

Description of reference numerals: 1. a base; 11. a liquid bearing tank; 12. a bottom pillar; 2. a cathode conductive rod; 3. a cathode conductive wheel; 31. a load wheel; 311. a wheel plate; 312. connecting columns; 32. electroplating the tape; 321. subpackaging the tapes; 4. an anode conductive rod; 5. electroplating the opening; 6. a shielding annulus; 7. mounting a plate; 8. a seal ring; 9. a connecting bolt; 10. a sealing block; 13. an outflow port; 14. a limiting ring; 15. a limit bolt; 16. a liquid inlet pipe; 17. a through groove; 18. a connecting port; 19. a ring groove; 20. a yielding groove; 21. an overflow aperture; 22. a connecting rod; 23. a countersunk hole; 24. unwinding rollers; 25. a wind-up roll; 26. a drive motor; 27. a low guide wheel; 28. a high guide wheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses continuous local tinning device.

Example 1

Referring to fig. 1, a continuous local tinning device comprises a base 1, wherein the base 1 comprises a liquid receiving tank 11 with an upper opening structure, a bottom column 12 which is vertically arranged is fixedly installed at the middle position of the liquid receiving tank 11, an electroplating mechanism is arranged on the bottom column 12, the liquid receiving tank 11 is used for receiving electroplating liquid discharged from the electroplating mechanism, and a conveying mechanism used for conveying a strip to be plated is further arranged on the bottom column 12.

Electroplating mechanism includes that perpendicular welded fastening installs in the negative pole conducting rod 2 of the vertical lateral wall of sill pillar 12, negative pole conducting rod 2 is the cylinder, the coaxial cover of outer wall of negative pole conducting rod 2 is established and is rotated and be connected with the electrically conductive wheel 3 of negative pole, electrically conductive wheel 3 of negative pole is the cavity setting, offer the electroplating mouth 5 that is used for flowing out the plating solution at the outer wall of electrically conductive wheel 3 of negative pole, wear to be equipped with one on sill pillar 12 and be used for leading into the feed liquor pipe 16 of plating solution to 3 inside electrically conductive wheels of negative pole, fixed welding has positive pole conducting rod 4 on the lateral wall that sill pillar 12 is located 2 below electrically conductive rod, positive pole conducting rod 4 stretches into in the inside of electrically conductive wheel 3 of negative pole and stretches into in the plating solution of deposit 3 bottoms at the electrically conductive wheel of negative pole. In the electroplating process, the material belt to be plated is conveyed by the conveying mechanism, the surface of the material belt to be plated is attached to the outer circular wall of the lower half part of the cathode conducting wheel 3, the anode of the power supply is electrically connected to the anode conducting rod 4, the cathode of the power supply is electrically connected to the cathode conducting rod 2, and therefore the cathode conducting wheel 3 in contact with the cathode conducting rod 2 is also electrified, the material belt to be plated is attached to the outer wall of the cathode conducting wheel 3, the material belt is also electrified, electroplating solution flows onto the material belt through the electroplating port 5, and metal ions move onto the material belt under the action of potential difference to form a plating layer.

Referring to fig. 1 and 2, in order to facilitate the electroplating of plating layers with different widths or shapes, the cathode conductive wheel 3 includes a bearing wheel 31 coaxially sleeved and rotatably connected to the outer wall of the cathode conductive rod 2, the bearing wheel 31 includes two parallel disc-shaped wheel plates 311, a plurality of connecting columns 312 are connected between the two wheel plates 311, a through groove 17 sleeved on the outer wall of the cathode conductive rod 2 is provided at the center of the two wheel plates 311, and a metal bearing is provided between the outer wall of the cathode conductive rod 2 and the inner wall of the through groove 17. A connecting port 18 which penetrates through the inside and the outside is formed between the two wheel plates 311, an annular electroplating belt 32 is detachably connected to the connecting port 18 in a sealing mode, the electroplating belt 32 is made of the same material as that of the cathode conducting rod 2 and can conduct electricity, the electroplating ports 5 are annular and are arranged on the electroplating belt 32, and different electroplating belts 32 are provided with electroplating ports 5 of different sizes or different shapes according to different electroplating requirements. In order to facilitate the liquid inlet pipe 16 to convey the electroplating solution between the two wheel plates 311, a ring groove 19 for penetrating the liquid inlet pipe 16 is formed on the wheel plate 311 on one side close to the bottom column 12, meanwhile, in order to install the anode conducting rod 4, a yielding groove 20 for penetrating the anode conducting rod 4 is formed on the wheel plate 311 on one side close to the bottom column 12, and each part of the wheel plate 311 divided by the ring groove 19 and the yielding groove 20 is fixedly connected with the other wheel plate 311 through a connecting column 312. Meanwhile, in order to enable the plating solution to overflow the wheel plates 311 during the plating process, a plurality of overflow holes 21 are formed in the surfaces of the two wheel plates 311 along the circumferential direction thereof.

Referring to fig. 1 and 2, the electroplating belt 32 includes two semicircular separate belts 321 disposed in a central symmetry manner at the center of the cathode conducting rod 2, the mounting plates 7 are integrally formed at both side edges of the separate belts 321 in the width direction, the mounting plates 7 are parallel to the bottom pillar 12 and mount the vertical side walls of the cathode conducting rod 2, the mounting plates 7 are parallel to the wheel plate 311, the mounting plates 7 are arc-shaped, and when mounting, the mounting plates 7 abut against the surface of the opposite side of the wheel plate 311. Electroplating mouth 5 sets up in partial shipment area 321 and runs through in partial shipment area 321, and because the setup of electroplating mouth 5, partial shipment area 321 is separated into many clitellums, along many connecting rods 22 of the circumference fixedly connected with of partial shipment area 321 between adjacent clitellums, utilizes connecting rod 22 to make partial shipment area 321 be a whole and do not influence simultaneously that inside plating solution flows out from electroplating mouth 5. In order to improve the sealing performance between the edge of the dispensing tape 321 and the wheel plate 311, a circle of sealing ring 8 is embedded in the outer circumferential wall of the wheel plate 311, so that after the dispensing tape 321 is installed between the two wheel plates 311, the inner wall of the dispensing tape 321 can be tightly pressed against the sealing ring 8, and the internal plating solution cannot seep out from the gap between the dispensing tape 321 and the outer wall of the wheel plate 311. In order to connect the plating belt 32 and the wheel plate 311, a plurality of connecting bolts 9 which are in threaded connection with the outer circumferential wall of the wheel plate 311 are arranged at the positions, close to the edges of the two sides, of the sub-packaging belts 321 in the circumferential direction, under the action of the connecting bolts 9, the sub-packaging belts 321 can be abutted against the outer circumferential wall of the wheel plate 311, countersunk holes 23 for penetrating the connecting bolts 9 are formed in the sub-packaging belts 321, and after the two sub-packaging belts 321 are installed, the two sub-packaging belts 321 are in sealing contact with each other. Meanwhile, in order to prevent the area, which is not needed to be electroplated, on the surface of the material belt from being electroplated, the outer wall of the split charging belt 321, which deviates from the cathode conducting rod 2, is embedded with a shielding girdle 6, the shielding girdle 6 is attached to the edge of the electroplating opening 5, the shielding girdle 6 is made of polytetrafluoroethylene material, and when electroplating is performed, the shielding girdle 6 is tightly abutted to the area, which is not needed to be electroplated, of the material belt, so that the internal electroplating solution cannot flow to the surface of the material belt. When plating layers with different widths or different shapes need to be formed by electroplating, only the electroplating belt 32 with the electroplating openings 5 with different widths or different shapes needs to be replaced.

In order to be able to carry out spacingly to the material area, the excircle cover in electroplating area 32 is equipped with two spacing rings 14 that set up relatively, and spacing ring 14 along the width direction sliding connection in partial shipment area 321 of partial shipment area 321, wears to establish threaded connection on the spacing ring 14 and supports tightly in the spacing bolt 15 on partial shipment area 321 surface.

Referring to fig. 3, the conveying mechanism includes an unwinding roller 24 rotatably connected to the outer wall of the liquid receiving tank 11, a winding roller 25 is rotatably connected to the opposite side wall of the liquid receiving tank 11 where the unwinding roller 24 is installed, a driving motor 26 for driving the winding roller 25 to rotate is fixedly installed on the liquid receiving tank 11, low guide wheels 27 are rotatably connected to the positions, close to the unwinding roller 24 and the winding roller 25, of the side wall of the bottom pillar 12, respectively, and a high guide wheel 28 close to the highest point of each wheel plate 311 is rotatably connected between each low guide wheel 27 and the wheel plate 311, so that the material belt can be tightly abutted to the outer wall of the dispensing belt 321 by the high guide wheel 28 in the conveying process.

The implementation principle of the continuous local tinning device in the embodiment of the application is as follows: according to the width and shape of the plating layer to be formed on the surface of the material belt, the plating belt 32 with the plating port 5 with the same size and shape as the plating layer to be formed is selected, the mounting plate 7 is tightly pressed against the outer wall of the wheel plate 311, and the sub-packaging belt 321 is tightly pressed against the outer circumference of the wheel plate 311 by the connecting bolt 9. The material belt is driven by the conveying mechanism to move and tightly abut against the outer wall of the split charging belt 321. The anode of the power supply is electrically connected to the anode conducting rod 4, and the cathode of the power supply is electrically connected to the cathode conducting rod 2, so that the cathode conducting wheel 3 in contact with the cathode conducting rod 2 is also electrified, the material belt to be plated is attached to the outer wall of the cathode conducting wheel 3, the material belt is also electrified, the electroplating solution flows onto the material belt through the electroplating port 5, and the metal ions move onto the material belt under the action of potential difference to form a plating layer.

Example 2

Referring to fig. 4, a continuous local tinning stack, the difference with embodiment 1 lies in, electroplate mouthful 5 and seted up many on partial shipment area 321, many shapes and the size of electroplating mouthful 5 are different, and many electroplating mouthful 5 evenly set up along partial shipment area 321 width direction, and it is equipped with closing block 10 to inlay at electroplating mouthful 5 internal seal, closing block 10 is made by polytetrafluoroethylene material, after closing block 10 is plugged into to electroplating mouthful 5, one side cambered surface that closing block 10 deviates from negative pole conducting rod 2 and one side cambered surface that partial shipment area 321 deviates from negative pole conducting rod 2 are same cambered surface setting. Therefore, different electroplating openings 5 can be selected according to different electroplating layers which are actually required to be formed, the sealing blocks 10 in the required electroplating openings 5 can be taken out, and the sealing blocks 10 in the unnecessary electroplating openings 5 can be plugged in.

Example 3

Referring to fig. 5, a continuous partial tinning apparatus was different from example 1 in that an outlet port 13 was opened in a sealing block 10, the shape and size of the outlet port 13 were the same as those of the plating port 5 corresponding to the sealing block 10, the size was reduced in proportion, and the outlet port 13 penetrated through the sealing block 10.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a continuous local tinning stack, includes base (1), fixed connection in negative pole conducting rod (2) of base (1), coaxial cover locate negative pole conducting rod (2) outside and inside hollow negative pole conducting wheel (3), be fixed in base (1) and stretch into negative pole conducting wheel (3) inside and dip positive pole conducting rod (4) in the plating solution, its characterized in that: cathode conducting wheel (3) are established and are rotated including coaxial cover and connect in bearing wheel (31) of cathode conducting rod (2) outer wall, can dismantle and connect in bearing wheel (31) circumference outer wall and with electroplating area (32) of waiting to plate the laminating of material area, bearing wheel (31) circumference outer wall runs through, electroplating area (32) are seted up and are supplied annular electroplating mouth (5) that cathode conducting wheel (3) inside plating solution flows, sealing connection between electroplating area (32) edge and bearing wheel (31), the surface laminating that electroplating area (32) deviate from cathode conducting wheel (3) has shielding clitellum (6), shielding clitellum (6) are laminated in the both sides of electroplating mouth (5).

2. A continuous partial tinning plant according to claim 1, characterized in that: bear wheel (31) including two blocks of wheel boards (311) that parallel, connect spliced pole (312) between two wheel boards (311), two wheel board (311) center cover is established and is rotated and connect in the electrically conductive wheel of negative pole (3), electroplating area (32) are including two partial shipment areas (321) that are central symmetry setting with electrically conductive pole (2) center of negative pole, partial shipment area (321) both sides are sealed can dismantle and connect between two relative lateral walls of wheel board (311), two sealing connection between partial shipment area (321).

3. A continuous partial tinning plant according to claim 2, characterized in that: the equal integrated into one piece in both sides edge of branch dress area (321) has mounting panel (7) parallel with wheel board (311), the sealed laminating of mounting panel (7) is in the lateral wall that takes turns board (311) back of the body mutually, can dismantle between mounting panel (7) and the wheel board (311) and be connected.

4. A continuous partial tinning plant according to claim 3, characterized in that: the mounting panel (7) are sealed to be fitted in the lateral wall that wheel board (311) carried on the back mutually, wheel board (311) periphery wall inlays and is equipped with and takes the sealed sealing washer (8) that sets up of (321) inner wall of partial shipment, be provided with connecting bolt (9) between wheel board (311) and the partial shipment area (321).

5. A continuous partial tinning plant according to claim 2, characterized in that: electroplating mouthful (5) and having seted up many, many electroplating mouthful (5) are along the even setting of partial shipment area (321) width direction, many electroplating mouthful (5) width is different.

6. A continuous partial tinning stack according to claim 5, characterized in that: electroplating mouth (5) internal seal inlays and is equipped with closing piece (10), closing piece (10) deviate from one side cambered surface of cathode conducting rod (2) and split charging area (321) and deviate from one side cambered surface of cathode conducting rod (2) and personally submit same cambered surface setting.

7. A continuous partial tinning stack according to claim 6, characterized in that: the outer circumferential wall of the sealing block (10) is provided with an outflow port (13) with the size smaller than that of the electroplating port (5), and the outflow port (13) penetrates through the sealing block (10).

8. A continuous partial tinning plant according to claim 2, characterized in that: the split charging belt (321) deviates from the outer side wall of the cathode conducting rod (2) and is connected with two annular limiting rings (14) which are arranged oppositely along the axial sliding direction of the cathode conducting rod (2), and a limiting bolt (15) is arranged between each limiting ring (14) and the split charging belt (321).

Images