CN219901388U - Welding strip processing device and series welding machine - Google Patents

Abstract

The utility model discloses a welding strip processing device and a stringer, wherein the welding strip processing device is sequentially provided with a material taking station, a slitting station, a transfer station and a stringing station, the welding strip processing device comprises a first traction mechanism and a second traction mechanism, the first traction mechanism moves back and forth between the material taking station and the transfer station, and the first traction mechanism is used for clamping welding strips at the material taking station and transmitting the clamped welding strips to the second traction mechanism; the second traction mechanism moves back and forth between the transfer station and the string assembling station, the second traction mechanism is used for clamping the welding strip transmitted by the first traction mechanism, after the second traction mechanism clamps the welding strip transmitted by the first traction mechanism, the first traction mechanism loosens the welding strip and moves to the material taking station, the welding strip clamped by the second traction mechanism is cut at the cutting station to obtain welding strip sections with preset lengths, the second traction mechanism is further used for transmitting the welding strip sections to the string assembling station, and the welding strip processing device can greatly improve the processing efficiency of the welding strip.

Description

Welding strip processing device and series welding machine

Technical Field

The utility model belongs to the technical field of solar cell production, and particularly relates to a welding strip processing device and a series welding machine.

Background

The grid lines of the multi-grid solar cell are usually 2 to 6 grids, namely 2 to 6 fixed-length welding strips are adopted on one side of each cell side by side, and along with the improvement of the requirements on the photoelectric conversion efficiency of the cells, more dense grid cells with grid lines appear in the market. The welding strip placed on the grid line is required to be pulled out from the welding strip disc by a welding strip processing device of the series welding machine and cut into a preset length; or no main grid cell, but the welding strips are more and the feeding efficiency of the welding strips is higher no matter the welding strips are dense grid lines or no main grid cell.

The traditional welding strip processing mode is generally that the welding strip is firstly stretched to be fixed length from the initial position to the front through the welding strip processing device, then the cutting mechanism cuts the welding strip to be long, the welding strip processing device pulls the welding strip with the fixed length to the position for discharging the battery piece, the robot waits for placing the battery piece, and after the battery piece is placed, the welding strip processing device loosens the welding strip with the fixed length, returns to the initial position, and repeats the action. In this way, each action can be started only after the last work is completed, which is time-consuming and has low production efficiency.

Disclosure of Invention

The utility model aims to provide a welding strip processing device and a series welding machine, which are used for solving the problem of low production efficiency of the welding strip processing device in the conventional battery piece series welding process.

To achieve the object, in a first aspect, the present utility model adopts the following technical scheme:

the welding strip processing device comprises a first traction mechanism and a second traction mechanism, wherein the first traction mechanism moves back and forth between the material taking station and the transfer station, and the first traction mechanism is used for clamping welding strips at the material taking station and transmitting the clamped welding strips to the second traction mechanism; the second traction mechanism moves back and forth between the transfer station and the stringing station, the second traction mechanism is used for clamping the welding strip transmitted by the first traction mechanism, after the second traction mechanism clamps the welding strip transmitted by the first traction mechanism, the first traction mechanism loosens the welding strip and moves to the material taking station, the welding strip clamped by the second traction mechanism is cut at the cutting station to obtain welding strip sections with preset lengths, and the second traction mechanism is also used for transmitting the welding strip sections to the stringing station.

The welding strip is matched with the first traction mechanism and the second traction mechanism to be connected, the traction action from the material taking station and the transfer station to the string assembling station is completed, the cutting of the welding strip is completed at the cutting station in the process, the welding strip section with the preset length is obtained, the welding strip section is convenient to be welded with a battery piece, the device is simple in structure and flexible and accurate in action, the processing efficiency of the welding strip is improved, the first traction mechanism can carry out the processing of the next working procedure after transferring the welding strip to the second traction mechanism, the welding strip cutting does not affect the next welding strip taking of the first traction mechanism, and the processing efficiency of the welding strip is improved.

Optionally, the welding strip processing device further comprises a pressing assembly, wherein the pressing assembly is located on the front channel of the material taking station and is used for pressing the welding strip entering the material taking station.

The welding strip is kept in a stable state in the processes of follow-up traction, slitting and the like through the pressing assembly, the welding strip processing precision and efficiency are improved, and the welding strip cut by the cutter is prevented from falling off from the material taking station.

Optionally, the welding strip processing device further comprises a tail clamping mechanism, wherein the tail clamping mechanism is positioned at the front channel of the string assembling station and is used for matching with the second traction mechanism to tension the welding strip section when the second traction mechanism lays the welding strip section towards the string assembling station.

The tail clamping mechanism is used for maintaining a tensioning state when the welding strip section is conveyed to the string assembling station by the second traction mechanism, so that the laying precision of the welding strip section is ensured, and the welding strip is prevented from shifting in the conveying and laying processes.

Optionally, the first traction mechanism includes a first driving module and a first clamping assembly, the first driving module is used for driving at least the first clamping assembly to move along the length direction of the welding strip, the first clamping assembly is used for clamping a preset position of the end part of the welding strip and loosening after the welding strip is transferred to the second traction mechanism for clamping, and a preset distance exists between the preset position and the end part of the welding strip for the second traction mechanism to clamp; the second traction mechanism comprises a second driving module and a second clamping assembly, the second driving module is used for at least driving the second clamping assembly to move along the length direction of the welding strip, the second clamping assembly is used for clamping the end part of the welding strip transmitted by the first clamping assembly, and the welding strip section obtained after cutting is transferred to the string station string, and then the welding strip section is loosened.

The welding strip is transferred through the first clamping assembly driven by the first driving module and the second clamping assembly driven by the second driving module, so that the action is accurate and efficient, and the traction efficiency is improved.

Optionally, the first clamping assembly can move up and down relative to the welding strip conveying plane, so that the first clamping assembly has a high-operation working position for taking the welding strip and a low-operation working position for releasing the welding strip.

By providing the first clamping assembly with a lifting function, the flexibility of the mechanism operation is improved, and the obstruction on the moving path is avoided.

Optionally, the welding strip processing device further comprises a lifting mechanism, wherein the lifting mechanism comprises a welding strip lifting part and a lifting moving part, and the lifting moving part is used for driving the welding strip lifting part to reciprocate between the transfer station and the stringing station; the welding strip lifting part is used for lifting the welding strip transmitted by the first traction mechanism, and the lifting moving part drives the welding strip lifting part to synchronously move with the second traction mechanism so as to move the welding strip of the transfer station to the stringing station.

The lifting mechanism is matched with the second traction mechanism to drag the welding strip from the transfer station to move towards the tail clamping mechanism, so that the welding strip is ensured to be stably dragged by the second traction mechanism, and the welding strip is prevented from moving along with the movement of the second traction mechanism.

Optionally, the welding strip lifting part comprises a welding strip guiding groove and a blocking mechanism positioned at the end part of the welding strip guiding groove, the blocking mechanism is provided with an open position and a closed position, the blocking mechanism is positioned at the open position, and the welding strip section falls into the guiding groove; the blocking mechanism is positioned at the closed position, and the welding strip falling into the guide groove is limited in the guide groove.

The position accuracy of the welding strip is improved through the welding strip guide groove and the blocking mechanism, so that the welding strip can move accurately and pass through the welding strip in the backward direction.

Optionally, the welding strip processing device further comprises a slitting mechanism and a flattening mechanism, wherein the slitting mechanism is positioned at a slitting station and is used for slitting the welding strip; the flattening mechanism is positioned in front of the material taking station and is used for flattening the preset position of the welding strip.

The welding strip is flattened and formed through the flattening mechanism, the welding strip is cut to the specified length through the cutting mechanism, the series welding requirement of the battery piece is met, the welding strip processing difficulty is reduced, and the processing efficiency is improved.

Optionally, the cutting mechanism comprises a cutter, a notch allowing the welding strip to pass through is formed in the cutter, and the two cutters are abutted side by side and slide relatively to realize the breaking of the welding strip.

Through two cutters of relative sliding, simply realize welding the area and walk and cut off, reduce the degree of difficulty of cutting.

Optionally, the cutter can move up and down relative to the welding strip conveying plane, so that the cutting mechanism does not influence the reciprocating movement of the first traction mechanism in the welding strip processing device.

By endowing the cutter with a lifting function, the action of the first traction mechanism is prevented from being interfered, and the traction efficiency is improved.

Optionally, the first traction mechanism clamps the welding strip from the left side and the right side in the length direction of the welding strip.

By means of the clamping modes on the two sides, the action difficulty of the mechanism is reduced, and the butt welding belt is guaranteed to be reliably clamped.

In a second aspect, the present utility model adopts the following technical scheme:

the series welding machine comprises a conveying mechanism, a battery piece feeding mechanism, a series connection mechanism and the welding strip processing device, wherein the welding strip processing device is used for acquiring a welding strip section with a fixed length and laying the welding strip section to a series connection station of the conveying mechanism; the battery piece feeding mechanism is used for laying battery pieces to a string station of the conveying mechanism; the conveying mechanism is used for conveying the battery pieces and the welding strip sections which are stacked at the stringing station to the stringing station; the series connection mechanism is used for connecting the stacked battery pieces and the welding strips in series into a battery string at a series connection station.

Through the cooperation of battery piece feeding mechanism, welding processing apparatus, transport mechanism and concatenate the mechanism, realize high-efficient material loading and the group cluster of battery piece and welding area section, and then realize the automatic weld of battery cluster.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a solder strip processing apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic position diagram of a first traction mechanism and a slitting mechanism in the welding strip processing device according to the embodiment of the utility model;

fig. 3 is a schematic position diagram of a second traction mechanism and a lifting mechanism in the solder strip processing device according to the embodiment of the present utility model;

FIG. 4 is a schematic structural view of a tail clip mechanism in a solder strip processing apparatus according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a flattening mechanism in the solder strip processing device according to the embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a pressing assembly in the solder strip processing apparatus according to the embodiment of the present utility model.

The following reference numerals are included in fig. 1 to 6:

a first traction mechanism 100, a first driving module 110, a first clamping assembly 120;

a second traction mechanism 200, a second driving module 210, a second clamping assembly 220;

the compression assembly 300, the bottom plate 310, the cross beam 320, the compression bar 330, the elastic pad 340, the tensioning block 350, the spring 360, the air cylinder 370 and the push plate 380;

tail clip mechanism 400;

a slitting mechanism 500, a cutter 510; notch 520;

a flattening mechanism 600;

transport mechanism 700.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The solder ribbon placed on the grid line of the multi-grid solar cell needs to be pulled out from the reel by a traction device of the series welder and cut into a predetermined length. The traditional welding strip processing mode is generally that the welding strip is stretched to the fixed length from the initial position to the front through the welding strip traction device, then the cutting mechanism cuts the welding strip to be long, the welding strip traction device is used for traction the fixed length to the position for discharging the battery piece, the robot is waited for placing the battery piece, after the battery piece is placed, the welding strip traction device is used for loosening the fixed length welding strip, the welding strip is returned to the initial position, and the repeated actions are carried out, so that each action can be started only after the last work is completed, time is wasted, and the production efficiency is low.

Therefore, the present utility model provides a solder strip processing device, which optimizes the structure and action of the existing processing device, improves the solder strip processing efficiency, and referring to fig. 1, the solder strip processing device provided in the embodiment of the present utility model is sequentially provided with a material taking station, a slitting station, a transferring station and a stringing station, wherein the slitting station is located between the material taking station and the transferring station and is close to the material taking station, and the solder strip processing device includes a first traction mechanism 100 and a second traction mechanism 200.

The first traction mechanism 100 reciprocates between a material taking station and a transfer station, and the first traction mechanism 100 is used for clamping a welding strip at the material taking station and transmitting the clamped welding strip to the second traction mechanism 200.

Specifically, referring to fig. 1 and 2 in detail, the first traction mechanism 100 includes a first driving module 110 and a first clamping assembly 120, the first driving module 110 is configured to drive at least the first clamping assembly 120 to move along the length direction of the solder strip, the first clamping assembly 120 is configured to clamp a predetermined position of the end portion of the solder strip and to release the solder strip after the solder strip is transferred to the second traction mechanism 200 for clamping, and a predetermined distance exists between the predetermined position and the end portion of the solder strip for clamping by the second traction mechanism 200.

Further, the first clamping assembly 120 is capable of moving up and down relative to the ribbon transport plane such that the first clamping assembly 120 has a high run position for ribbon removal and a low run position for ribbon placement. Referring to fig. 1 in detail, the first driving module 110 can also drive the first clamping assembly 120 to lift, which can be specifically realized by a vertical guide rail and a sliding block, so as to improve the flexibility of the mechanism action and avoid the obstruction on the moving path.

The second traction mechanism 200 reciprocates between the transfer station and the stringing station, the second traction mechanism 200 is used for clamping the welding strip transmitted by the first traction mechanism 100, after the second traction mechanism 200 clamps the welding strip transmitted by the first traction mechanism 100, the first traction mechanism 100 loosens the welding strip and moves to the material taking station, the welding strip clamped by the second traction mechanism 200 is cut at the cutting station to obtain welding strip sections with preset lengths, and the second traction mechanism 200 is also used for transmitting the welding strip sections to the stringing station.

Specifically, referring to fig. 1 and 3 in detail, the second traction mechanism 200 includes a second driving module 210 and a second clamping assembly 220, where the second driving module 210 is configured to drive at least the second clamping assembly 220 to move along the length direction of the solder strip, and the second clamping assembly 220 is configured to clamp the end portion of the solder strip transferred by the first clamping assembly 120, and to release the solder strip section after transferring the solder strip section obtained after cutting to the string assembling station string.

It can be seen that, through the cooperation handing-over of first traction mechanism 100 and second traction mechanism 200, the traction action of welding the area from getting the material station, turning over the station to group string station has been accomplished, and the in-process is accomplished the breaking of welding the area at cutting the station, obtains the welding area section of predetermined length to follow-up and battery piece welding, device simple structure, flexible and accurate action have promoted the treatment effeciency of welding the area. In addition, the first clamping assembly 120 driven by the first driving module 110 and the second clamping assembly 220 driven by the second driving module 210 complete the transfer of the solder strip, so that the action is accurate and efficient, and the traction efficiency is improved.

On the basis, the welding strip processing device further comprises a pressing assembly 300, wherein the pressing assembly 300 is positioned in front of the material taking station and is used for pressing welding strips entering the material taking station.

Specifically, referring to fig. 5 and 6 in detail, the pressing assembly 300 includes a bottom plate 310 located below the welding strip conveying line and a beam 320 located above the welding strip conveying line, the bottom plate 310 and the beam 320 are both arranged along a direction perpendicular to the welding strip conveying direction, a plurality of pressing rods 330 are rotatably disposed on the beam 320, each pressing rod 330 is distributed at intervals along the arrangement direction of the beam 320, and elastic pads 340 are disposed on the bottom plate 310 corresponding to each pressing rod 330; the upper surface of the cross beam 320 is provided with a tensioning block 350, and a spring 360 is arranged between the tensioning block 350 and the upper end of the compression bar 330, so that the lower end of the compression bar 330 abuts against the elastic pad 340; the lower surface of the cross beam 320 is provided with an air cylinder 370, the output rod of the air cylinder 370 is provided with a push plate 380 acting on the compression rods 330, a welding strip passes through the gap between each compression rod 330 and the elastic pad 340, the compression rods 330 are always in a state of abutting against the elastic pad 340 through the springs 360, and the push plate 380 is pushed by the air cylinder 370 to realize unified upward rotation or downward setting of each compression rod 330.

Further, the position of the tensioning block 350 on the beam 320 relative to the compression bar 330 is adjustable, so as to adjust the pressure of the compression bar 330 on the elastic pad 340 by means of the tensioning block 350.

It can be seen that the pressing assembly 300 realizes that the welding strip maintains a stable state in the processes of subsequent traction, slitting and the like, and improves the processing precision and efficiency of the welding strip.

Of course, the hold-down assembly may be the continuous hold-down assembly described above that continuously provides a hold-down force to the weld bead without affecting the weld bead pull feed. Or the pressing component can also be a lifting pressure head driven by the air cylinder, so that pressure is provided for the welding belt when the welding belt is required to be cut off, and the welding belt is released when the feeding is required.

On the basis, the welding strip processing device further comprises a tail clamping mechanism 400, wherein the tail clamping mechanism 400 is positioned at the front channel of the string station and is used for matching with the second traction mechanism 200 to tension the welding strip section when the second traction mechanism 200 lays the welding strip section towards the string station.

It can be seen that the tail clamping mechanism 400 maintains the tension state when the welding strip section is conveyed to the stringing station by the second traction mechanism 200, so that the laying effect of the welding strip section is ensured.

On the basis, the welding strip processing device also comprises a lifting mechanism, and the detail is shown in figure 1; the lifting mechanism comprises a welding strip lifting part and a lifting moving part, and the lifting moving part is used for driving the welding strip lifting part to reciprocate between a transfer station and a stringing station; the welding strip lifting part is used for lifting the welding strip transmitted by the first traction mechanism 100, and the lifting moving part drives the welding strip lifting part to synchronously move with the second traction mechanism 200 so as to move the welding strip of the transfer station to the stringing station.

Further, the welding strip lifting part comprises a welding strip guide groove and a blocking mechanism positioned at the end part of the welding strip guide groove, the blocking mechanism is provided with an open position and a closed position, the blocking mechanism is positioned at the open position, and the welding strip section falls into the guide groove; the blocking mechanism is positioned at the closed position, and the welding strip falling into the guide groove is limited in the guide groove.

In one implementation mode, the blocking mechanism comprises a driving cylinder and a blocking rod, the blocking rod is connected with the driving cylinder, and the pressing rod is used for blocking the guide groove under the driving of the driving cylinder to limit the welding strip.

It can be seen that the lifting mechanism cooperates with the second traction mechanism 200 to drag the welding strip from the transfer station to the tail clamping mechanism 400, and the position degree of the welding strip is improved through the welding strip guide groove and the blocking mechanism, so that the welding strip is accurately clamped by the subsequent tail clamping mechanism 400, and the welding strip is ensured to be stably towed by the second traction mechanism 200.

In one implementation, the solder strip may be transferred from the lift mechanism to the tail clip and then into the stringing station; or the welding strip can be directly transmitted from the lifting mechanism to the stringing station.

On this basis, the welding strip processing device further comprises a cutting mechanism 500, wherein the cutting mechanism 500 is positioned at a cutting station and is used for cutting the welding strip.

Specifically, referring to fig. 2 in detail, the slitting mechanism 500 includes a cutter 510, a notch 520 is formed on the cutter 510 to allow the solder strip to pass through, and two cutters 510 are abutted side by side and slide relatively to realize the breaking of the solder strip.

Further, the cutter 510 can be lifted and lowered relative to the solder strip conveying plane, and specifically, the lifting and lowering can be driven by the air cylinder 370, so that the separating mechanism 500 does not affect the reciprocating movement of the first traction mechanism 100 in the solder strip processing device.

It can be seen that, through two cutters 510 that slide relatively, the welding strip has simply been realized walking and cutting off, has reduced the cutting degree of difficulty, and through giving cutter 510 raising and lowering functions, avoid interfering with the action of first traction mechanism 100, improved traction efficiency.

On the basis, the welding strip processing device further comprises a flattening mechanism 600, wherein the flattening mechanism 600 is positioned in front of the material taking station and is used for flattening the preset position of the welding strip.

Specifically, referring to fig. 5 in detail, the flattening mechanism 600 is located between the pressing mechanism and the material taking station, and is configured to first flatten the pressed solder strip, so that the flattened portion is more convenient for the first traction mechanism 100 to clamp after the solder strip enters the material taking station.

Therefore, the welding strip is flattened and formed through the flattening mechanism 600, and is slit to the specified length through the slitting mechanism 500, so that the series welding requirement of the battery piece is met, the welding strip processing difficulty is reduced, and the processing efficiency is improved.

Further, the first traction mechanism 100 grips the solder ribbon from both left and right sides in the solder ribbon length direction.

It can be seen that, by the two-side clamping manner, the action difficulty of the first traction mechanism 100 is reduced, and the butt welding belt is ensured to be reliably clamped.

The solder strip processing device provided in this embodiment has the following advantages:

(1) The first traction mechanism 100 and the second traction mechanism 200 are designed to be matched and connected, the traction action from the material taking station and the transfer station to the string assembling station is completed, the cutting of the welding strip is completed at the cutting station in the process, and the welding strip section with the preset length is obtained, so that the welding strip can be conveniently welded with a battery piece subsequently, the device is simple in structure, flexible and accurate in action, and the processing efficiency of the welding strip is improved;

(2) The compacting assembly 300 is designed to keep the welding strip in a stable state in the processes of subsequent traction, slitting and the like, and the welding strip processing precision and efficiency are improved.

(3) The tail clamping mechanism 400 is designed to keep a tensioning state when the welding strip section is conveyed to the stringing station by the second traction mechanism 200, so that the laying effect of the welding strip section is ensured;

(4) The lifting mechanism 500 is matched with the second traction mechanism 200 to drag the welding strip from the transfer station to move towards the tail clamp, so that the welding strip is ensured to be stably dragged by the second traction mechanism 200;

(5) The flattening mechanism 600 is designed to flatten and shape the welding strip, and the welding strip is cut to the specified length through the cutting mechanism 500, so that the series welding requirement of the battery piece is met, the welding strip treatment difficulty is reduced, and the treatment efficiency is improved;

(6) Endowing the first traction mechanism 100 and the slitting mechanism 500 with the function of lifting the cutter 510, enabling the traction and slitting actions to be orderly and efficient, avoiding mutual interference and improving the action efficiency.

Based on the teaching of the welding strip processing device, the embodiment of the utility model also provides a welding strip processing method, which comprises the following steps:

step one, controlling a first traction mechanism 100 to clamp a welding strip from a material taking station and to draw the clamped welding strip to a transfer station;

step two, controlling the second traction mechanism 200 to receive the welding strip delivered by the first traction mechanism 100 at the transfer station, and controlling the first traction mechanism 100 to loosen the welding strip and withdraw to the material taking station so as to clamp the subsequent welding strip from the material taking station;

cutting off the welding strip at a cutting station to obtain a welding strip section with a fixed length, wherein the cutting station is positioned between the material taking station and the transfer station and is close to the material taking station;

and step four, controlling the second traction mechanism 200 to draw the clamped and cut welding strip sections to a stringing station, and controlling the second traction mechanism 200 to lay the welding strip sections to the stringing station and then move to a transfer station so as to take the subsequent welding strip from the first traction mechanism 100.

It can be seen that the welding strip is pulled from the material taking station to the transfer station through the first traction mechanism 100, the welding strip is pulled from the transfer station to the string assembling station through the second traction mechanism 200, the welding strip is cut to a fixed length through the cutting station in the process, the action of the traction mechanism is simplified, the connection waiting time of the first traction mechanism 100 and the second traction mechanism 200 is reduced, the condition that the welding strip is cut off for the next time in a traditional mode is avoided, the waiting time of the first traction mechanism caused by the cutting of the welding strip is reduced, the welding strip processing time is shortened, and the production efficiency is improved.

Further, before the fourth step, the lifting mechanism is controlled to bear the welding strip section pulled by the second pulling mechanism 200 at the transfer station, and the lifting mechanism and the second pulling mechanism 200 are controlled to synchronously move so as to convey the welding strip section to the stringing station.

Therefore, the lifting mechanism is matched with the second traction mechanism 200 to bear the welding strip at the transfer station, so that the welding strip is ensured to be stably towed by the second traction mechanism 200.

In addition, based on the structure of the welding strip processing device, the embodiment of the utility model also provides a series welding machine, which comprises a conveying mechanism 700, a battery piece feeding mechanism, a series connection mechanism and the welding strip processing device.

The welding strip processing device is used for acquiring the welding strip sections with fixed length and laying the welding strip sections to a string assembling station of the conveying mechanism 700; the battery piece feeding mechanism is used for laying battery pieces to a stringing station of the conveying mechanism 700; the conveying mechanism 700 is used for conveying the stacked battery pieces and the welding strip sections at the stringing station to the stringing station; the series connection mechanism is used for connecting the stacked battery pieces and the welding strips in series into a battery string at a series connection station. The serial connection mechanism can be at least one of an infrared welding lamp tube, a laser welding device or a photo-curing welding device.

Therefore, the battery piece feeding mechanism, the welding treatment device, the conveying mechanism and the serial connection mechanism are matched, so that the feeding and the serial connection of the battery piece and the welding strip section are realized, and the automatic welding of the battery string is further realized.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (12)

1. The welding strip processing device is characterized by sequentially arranging a material taking station, a cutting station, a transfer station and a string assembling station, wherein the cutting station is positioned between the material taking station and the transfer station and is close to the material taking station, the welding strip processing device comprises a first traction mechanism and a second traction mechanism,

the first traction mechanism moves back and forth between the material taking station and the transfer station, and is used for clamping the welding strip at the material taking station and transmitting the clamped welding strip to the second traction mechanism;

the second traction mechanism moves back and forth between the transfer station and the string assembling station, the second traction mechanism is used for clamping the welding strip transmitted by the first traction mechanism, after the second traction mechanism clamps the welding strip transmitted by the first traction mechanism, the first traction mechanism loosens the welding strip and moves to the material taking station, the welding strip clamped by the second traction mechanism is cut at the cutting station to obtain welding strip sections with preset lengths, and the second traction mechanism is further used for transmitting the welding strip sections to the string assembling station.

2. The solder strip processing device of claim 1, further comprising a hold down assembly positioned in front of the pick up station for holding down solder strips entering the pick up station.

3. The welding-strip processing device of claim 1 further comprising a tail-clamping mechanism located in front of the stringing station for tensioning the welding-strip segment in cooperation with the second traction mechanism as the second traction mechanism lays the welding-strip segment toward the stringing station.

4. The welding-strip processing apparatus of claim 1 wherein the first traction mechanism includes a first drive module and a first clamping assembly, the first drive module being configured to drive at least the first clamping assembly to move along a length of the welding strip, the first clamping assembly being configured to clamp a predetermined position of an end of the welding strip and to unclamp after the welding strip is transferred to the second traction mechanism, the predetermined position being spaced from the end of the welding strip by a predetermined distance for clamping by the second traction mechanism;

the second traction mechanism comprises a second driving module and a second clamping assembly, the second driving module is used for at least driving the second clamping assembly to move along the length direction of the welding strip, and the second clamping assembly is used for clamping the end part of the welding strip transmitted by the first clamping assembly and loosening the welding strip section after transferring the welding strip section obtained after cutting to the serial work bit group string.

5. The ribbon handling device of claim 4, wherein the first clamp assembly is capable of lifting relative to the ribbon transport plane such that the first clamp assembly has a high run position for retrieving a ribbon and a low run position for releasing a ribbon.

6. The solder strip processing apparatus of claim 1, further comprising a lifting mechanism comprising a solder strip lifting portion and a lifting movement portion, wherein,

the lifting moving part is used for driving the welding strip lifting part to reciprocate between the transfer station and the stringing station;

the welding strip lifting part is used for lifting the welding strip transmitted by the first traction mechanism, and the lifting moving part drives the welding strip lifting part to synchronously move with the second traction mechanism so as to move the welding strip of the transfer station to the string assembling station.

7. The solder strip processing apparatus of claim 6, wherein the solder strip lifting portion comprises a solder strip guide slot and a blocking mechanism at an end of the solder strip guide slot, the blocking mechanism having an open position and a closed position,

the blocking mechanism is positioned at the opening position, and the welding strip section falls into the guide groove; the blocking mechanism is located at the closed position, and the welding strip falling into the guide groove is limited in the guide groove.

8. The solder strip processing apparatus of claim 1, further comprising a slitting mechanism and a flattening mechanism, wherein,

the cutting mechanism is positioned at the cutting station and used for cutting the welding strip;

the flattening mechanism is positioned in front of the material taking station and is used for flattening the preset position of the welding strip.

9. The welding strip processing device according to claim 8, wherein the cutting mechanism comprises a cutter, a notch allowing the welding strip to pass through is formed in the cutter, and two cutters are abutted side by side and relatively slide to realize the breaking of the welding strip.

10. The solder strip processing device of claim 9, wherein the cutter is capable of lifting relative to a solder strip transport plane such that the slitting mechanism does not affect the reciprocating movement of the first traction mechanism in the solder strip processing device.

11. The welding-ribbon processing apparatus according to claim 1, wherein the first traction mechanism clamps the welding-ribbon from both left and right sides in a longitudinal direction of the welding-ribbon.

12. A series welding machine, characterized in that the series welding machine comprises a conveying mechanism, a battery piece feeding mechanism, a series connection mechanism and a welding strip processing device according to any one of claims 1-11, wherein,

the welding strip processing device is used for obtaining a welding strip section with a fixed length and laying the welding strip section to a string assembling station of the conveying mechanism;

the battery piece feeding mechanism is used for laying battery pieces to a string station of the conveying mechanism;

the conveying mechanism is used for conveying the stacked battery pieces and the welding strip sections at the stringing station to the stringing station;

the series connection mechanism is used for connecting the stacked battery pieces and the welding strips in series to form a battery string at the series connection station.