CN110644040A

CN110644040A - Full-automatic aluminum bar two-end tinning production line

Info

Publication number: CN110644040A
Application number: CN201911042097.1A
Authority: CN
Inventors: 胡金圣; 祝华; 左志华; 张华龙; 刘洪阳
Original assignee: Yangzhong Xinjiang Plating Industry Co Ltd
Current assignee: Yangzhong Xinjiang Plating Industry Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-01-03

Abstract

The invention discloses a full-automatic aluminum bar double-end tinning production line which comprises a conveying chain, wherein a plurality of cantilevers are connected onto the conveying chain, and special rotary lifting appliances for tinning the two ends of an aluminum bar are connected onto the cantilevers; a feeding section, a first cleaning section, a pretreatment section, a tinning section, a second cleaning section and a discharging section are sequentially arranged along the conveying chain; the invention improves the tin plating process, and improves the binding capacity of the plating layer through the zinc dipping process; by the copper (coke copper) plating process, the stability of current parameters during tin electroplating is improved, plating leakage is avoided, and the uniformity of a tin-plated product is improved; through dedicated rotatory hoist, realized arranging the high-efficient control of lift, rotation and location to the aluminium, promoted the production efficiency of whole production line.

Description

Full-automatic aluminum bar two-end tinning production line

Technical Field

The invention particularly relates to a full-automatic aluminum bar two-end tinning production line.

Background

The metal aluminum is very active amphoteric metal, has strong self-passivation capability and does not have proper activation, and after electroplating, the coating has poor bonding force and peeling phenomenon occurs, so that the tin plating of the aluminum bar can be finished by the processes of zinc dipping, zinc stripping, zinc re-deposition and tin electroplating. In the existing production, the processes of zinc dipping, zinc removing, zinc re-deposition and tin electroplating have defects, and if copper is not pre-plated, the local current of the hanger is too high during tin electroplating, so that the coating of a product is punctured by a hanger head to form the problem of plating leakage.

In addition to the above problems, in the production of local tin plating of an aluminum bar, a tool clamp is also needed to assist implementation, the design of the tin plating clamp of the aluminum bar is directly related to each process flow, the tin plating quality is finally influenced, in the prior art, parts which do not need to be plated are shielded, then the whole workpiece is placed into a plating solution, the process generates huge waste to the plating solution, the cleaning process is complex, the pollution is large, and the energy consumption and the wastewater treatment cost are increased.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides a full-automatic aluminum bar double-end tinning production line which comprises a conveying chain, wherein a plurality of cantilevers are connected on the conveying chain, and a special rotary lifting appliance for tinning the two ends of an aluminum bar is connected on each cantilever; a feeding section, a first cleaning section, a pretreatment section, a tinning section, a second cleaning section and a discharging section are sequentially arranged along the conveying chain;

the first cleaning section comprises a chemical oil removing groove, a first spray rinsing groove, an alkaline etching groove, a second spray rinsing groove, a pickling groove, a first rinsing groove, a third spray rinsing groove, a water spraying groove, a water,

The pretreatment section comprises a primary zinc dipping tank, a fourth spraying water washing tank, a zinc stripping tank, a second water washing tank, a fifth spraying water washing tank, a secondary zinc dipping tank, a sixth spraying water washing tank, a pre-copper plating tank, a seventh spraying water washing tank, a copper plating tank, an eighth spraying water washing tank, an activation tank, a third water washing tank and a ninth spraying water washing tank which are arranged in sequence;

the second cleaning section comprises a fourth rinsing bath, a tenth spray rinsing bath, a neutralization bath, an eleventh spray rinsing bath, a fifth rinsing bath and a hot rinsing bath.

In order to better realize the automatic production of the tin plating at the two ends of the aluminum row, preferably, the special rotary lifting appliance for the tin plating at the two ends of the aluminum row comprises a rack, a lifting module, a rotary module and a positioning module, wherein the rack consists of two vertical upright posts and a plurality of transverse connecting plates, and the upright posts are internally provided with vertical sliding grooves;

the lifting module is arranged right in front of the rack and comprises a lifting frame and four limiting slide blocks connected with two sides of the lifting frame, the rear ends of the limiting slide blocks are provided with sliding buckles matched with the sliding grooves, and the limiting slide blocks vertically move relative to the vertical columns; a rotating motor is arranged at the center of the lifting frame; the upper and lower sections of the lifting frame are provided with two symmetrical locking pin holes;

the rotary module is arranged right ahead the lifting frame and comprises a rotary frame and two clamping units arranged at the upper end and the lower end of the rotary frame, and each clamping unit comprises a transverse pressing plate and two quick pressing pincers arranged at opposite angles of the pressing plate; a rotating shaft hole is formed in the middle of the rotating frame, and a rotating shaft of the rotating motor is clamped in the rotating shaft hole;

the positioning modules are respectively arranged in the middle of the two transverse pressing plates and comprise cross slots, locking pins and return springs, the cross slots comprise through holes, first grooves and second grooves which are crossed in a cross mode, and the positions of the through holes are opposite to the positions of locking pin holes on the lifting frames; the groove depth of the first groove is larger than that of the second groove; the lock pin comprises a pin handle arranged at the tail end of the lock pin, a groove buckle arranged at the middle section of the lock pin and a reset baffle arranged at the front section of the lock pin; the lock pin is inserted into the through hole, a return spring is sleeved on the lock pin, one end of the return spring abuts against the rear wall of the pressing plate, and the other end of the return spring abuts against the front wall of the return baffle.

Preferably, the total number of the grooves of the feeding section and the blanking section is 8.

Preferably, the number of the chemical oil removal tank, the alkaline etching tank, the pickling tank, the primary zinc dipping tank and the pre-copper plating tank is 2; the number of the primary zinc dipping tanks is 1.

Preferably, the number of the first spray rinsing bath, the second spray rinsing bath, the third spray rinsing bath, the fourth spray rinsing bath, the fifth spray rinsing bath, the sixth spray rinsing bath, the seventh spray rinsing bath, the ninth spray rinsing bath, the tenth spray rinsing bath, the eleventh spray rinsing bath, the first rinsing bath, the second rinsing bath, the third rinsing bath, the fourth rinsing bath and the fifth rinsing bath is 1; the number of the eighth spray rinsing tanks is 2.

Preferably, the number of the copper plating grooves is 45; the number of the tinning tanks is 10.

Preferably, the number of the neutralization tank and the number of the hot water washing tank are both 2.

Preferably, the conveying chain, the feeding section, the first cleaning section, the pretreatment section, the tinning section, the second cleaning section and the discharging section are all connected with a PLC (programmable logic controller) and a waste gas treatment system.

Has the advantages that: the invention improves the tin plating process, and improves the binding capacity of the plating layer through the zinc dipping process; by the copper (coke copper) plating process, the stability of current parameters during tin electroplating is improved, plating leakage is avoided, and the uniformity of a tin-plated product is improved; through dedicated rotatory hoist, realized arranging the high-efficient control of lift, rotation and location to the aluminium, promoted the production efficiency of whole production line.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a full-automatic aluminum row two-end tinning production line;

FIG. 2 is a schematic perspective view of a rotary hanger dedicated for tinning two ends of an aluminum row;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;

fig. 4 is a partially enlarged view of a portion B of fig. 3;

FIG. 5 is a schematic view of the structure of FIG. 4 with the locking pin concealed;

FIG. 6 is a perspective view of the locking pin;

FIG. 7 is a front view of FIG. 2;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

in the figure: 101. a conveying chain, 102, a special rotary sling for tinning two ends of an aluminum row, 201, a loading section, 202, a tinning section, 203, a unloading section, 301, a chemical degreasing tank, 302, a first spray rinsing tank, 303, an alkaline etching tank, 304, a second spray rinsing tank, 305, a pickling tank, 306, a first rinsing tank, 307, a third spray rinsing tank, 401, a first zinc-dipping tank, 402, a fourth spray rinsing tank, 403, a zinc-stripping tank, 404, a second rinsing tank, 405, a fifth spray rinsing tank, 406, a second zinc-dipping tank, 407, a sixth spray rinsing tank, 408, a pre-plated copper tank, 409, a seventh spray rinsing tank, 410, a copper-plating tank, 411, an eighth spray rinsing tank, 412, an activation tank, 413, a third rinsing tank, 414, a ninth spray rinsing tank, 501, a second cleaning section comprises a fourth rinsing tank, 502, a tenth spray rinsing tank, 503, a neutralization tank, 504, an eleventh spray rinsing tank, 505, a second cleaning section and a third cleaning section, A fifth washing tank 506, a hot washing tank; 1. the device comprises a rack, 2, a stand column, 3, a transverse connecting plate, 4, a sliding groove, 5, a lifting frame, 6, a limiting slide block, 7, a rotating motor, 8, a locking pin hole, 9, a rotating frame, 10, a pressing plate, 11, a quick pressing clamp, 12, a rotating shaft hole, 13, a rotating shaft, 14, a cross slot, 15, a locking pin, 16, a reset spring, 17, a first groove, 18, a second groove, 19, a pin handle, 20, a groove buckle, 21 and a reset baffle.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-8, the invention aims to solve the defects of the prior art, and provides a full-automatic aluminum row two-end tinning production line, which comprises a conveying chain 101, wherein a plurality of cantilevers are connected on the conveying chain 101, and a special rotary hanger 102 for tinning two ends of an aluminum row is connected on the cantilevers; a feeding section 201, a first cleaning section, a pretreatment section, a tinning section 202, a second cleaning section and a discharging section 203 are sequentially arranged along the conveying chain 101;

the first cleaning section comprises a chemical oil removing groove 301, a first spray rinsing groove 302, an alkaline etching groove 303, a second spray rinsing groove 304, a pickling groove 305, a first rinsing groove 306, a third spray rinsing groove 307, a water-removing agent and a water-removing agent which are sequentially arranged,

The pretreatment section comprises a primary zinc dipping tank 401, a fourth spraying and washing tank 402, a zinc stripping tank 403, a second washing tank 404, a fifth spraying and washing tank 405, a secondary zinc dipping tank 406, a sixth spraying and washing tank 407, a pre-copper plating tank 408, a seventh spraying and washing tank 409, a copper plating tank 410, an eighth spraying and washing tank 411, an activation tank 412, a third washing tank 413 and a ninth spraying and washing tank 414 which are arranged in sequence;

the second cleaning section comprises a fourth water washing tank 501, a tenth spray water washing tank 502, a neutralization tank 503, an eleventh spray water washing tank 504, a fifth water washing tank 505 and a hot water washing tank 506.

The total number of the grooves of the feeding section and the blanking section is 8.

The number of the chemical oil removing groove, the alkaline etching groove, the pickling groove, the primary zinc dipping groove and the pre-copper plating groove is 2; the number of the primary zinc dipping tanks is 1.

1 first, second, third, fourth, fifth, sixth, seventh, ninth, tenth, eleventh, first, second, third, fourth and fifth water washing tanks are arranged; the number of the eighth spray rinsing tanks is 2.

45 copper plating grooves are formed; the number of the tinning tanks is 10.

The number of the neutralization tanks and the number of the hot water washing tanks are 2.

The conveying chain, the feeding section, the first cleaning section, the pretreatment section, the tinning section, the second cleaning section and the blanking section are all connected with a PLC (programmable logic controller) and a waste gas treatment system.

The special rotary lifting appliance for tinning of two ends of the row comprises a rack 1, a lifting module, a rotary module and a positioning module, wherein the rack 1 consists of two vertical upright posts 2 and a plurality of transverse connecting plates 3, and the upright posts 2 are internally provided with vertical sliding grooves 4;

the lifting module is arranged right in front of the rack 1 and comprises a lifting frame 5 and four limiting slide blocks 6 connected with two sides of the lifting frame 5; the rear end of the limiting slide block is provided with a slide fastener matched with the chute 4, and the limiting slide block 6 vertically moves relative to the upright post 2; a rotating motor 7 is arranged at the center of the lifting frame 5; the upper section and the lower section of the lifting frame 5 are provided with two symmetrical locking pin holes 8;

the rotary module is arranged right ahead the lifting frame 5 and comprises a rotary frame 9 and two clamping units arranged at the upper end and the lower end of the rotary frame 9, and each clamping unit comprises a transverse pressing plate 10 and two quick pressing pincers 11 arranged at opposite angles of the pressing plate; a rotating shaft hole 12 is formed in the middle of the rotating frame, and a rotating shaft 13 of the rotating motor is clamped in the rotating shaft hole 12;

the positioning modules are respectively arranged in the middle of the two transverse pressure plates and comprise a cross slot 14, a lock pin 15 and a return spring 16, the cross slot comprises a through hole, a first groove 17 and a second groove 18 which are crossed in a cross manner, and the position of the through hole is opposite to the position of a lock pin hole 8 on the lifting frame; the groove depth D of the first groove 17 is greater than the groove depth D of the second groove 18; the lock pin comprises a pin handle 19 arranged at the tail end of the lock pin, a groove buckle 20 arranged at the middle section of the lock pin and a reset baffle 21 arranged at the front section of the lock pin; the locking pin 15 is inserted into the locking pin hole, a return spring 16 is sleeved on the locking pin, one end of the return spring 16 abuts against the rear wall of the pressing plate 10, and the other end abuts against the front wall of the return baffle 21.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A full-automatic aluminum row two-end tinning production line is characterized by comprising a conveying chain, wherein a plurality of cantilevers are connected onto the conveying chain, and special rotary hangers for tinning two ends of an aluminum row are connected onto the cantilevers; a feeding section, a first cleaning section, a pretreatment section, a tinning section, a second cleaning section and a discharging section are sequentially arranged along the conveying chain;

2. The full-automatic aluminum row two-end tinning production line according to claim 1, wherein the special rotary hanger for tinning the two ends of the aluminum row comprises a rack, a lifting module, a rotating module and a positioning module, the rack consists of two vertical columns and a plurality of transverse connecting plates, and vertical sliding grooves are formed in the columns;

3. A full-automatic aluminum row two-end tin plating production line as recited in claim 1, wherein the total number of the grooves of the feeding section and the blanking section is 8.

4. The full-automatic aluminum bar two-end tinning production line according to claim 1, wherein the number of the chemical oil removal tank, the alkaline etching tank, the pickling tank, the primary zinc dipping tank and the pre-copper plating tank is 2; the number of the primary zinc dipping tanks is 1.

5. The full-automatic aluminum bar two-end tin plating production line as claimed in claim 1, wherein the number of the first, second, third, fourth, fifth, sixth, seventh, ninth, tenth, eleventh, first, second, third, fourth and fifth water wash baths is 1; the number of the eighth spray rinsing tanks is 2.

6. The full-automatic aluminum bar two-end tin plating production line as claimed in claim 1, wherein the number of the copper plating grooves is 45; the number of the tinning tanks is 10.

7. The full-automatic aluminum bar two-end tin plating production line according to claim 1, wherein the number of the neutralization tank and the hot water washing tank is 2.

8. The full-automatic aluminum bar two-end tin plating production line as claimed in claim 1, wherein the conveying chain, the feeding section, the first cleaning section, the pre-treatment section, the tin plating section, the second cleaning section and the blanking section are all connected with a PLC controller and an exhaust gas treatment system.