CN112122831A

CN112122831A - Current collecting disc automatic feeding device, current collecting disc welding equipment and battery cell production line

Info

Publication number: CN112122831A
Application number: CN202011064439.2A
Authority: CN
Inventors: 吴轩; 冉昌林; 王雄力; 刘超; 孟昌
Original assignee: Jiangsu Yifei Laser Equipment Co ltd
Current assignee: Jiangsu Yifei Laser Equipment Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-25

Abstract

The embodiment of the invention provides a current collecting disc automatic feeding device, current collecting disc welding equipment and a battery cell production line, wherein the current collecting disc automatic feeding device comprises a support, the support comprises a feeding area and a discharging area, the feeding area is provided with an automatic feeding mechanism, the discharging area is provided with an automatic discharging mechanism, and the top of the support is provided with a material moving mechanism; automatic feeding mechanism and automatic unloading mechanism all include lift drive unit and objective table, lift drive unit's drive end links to each other with the objective table and moves in the vertical direction of drive objective table in the material loading district, the objective table includes the lifter plate, linear drive unit and install two support risers in the relative both sides of lifter plate, two linear drive units install on the lifter plate, two support risers correspond the below both sides that set up at the material dish, lift drive unit is connected with the lifter plate transmission, two linear drive units are connected with two support riser one-to-one drives, improve material loading efficiency, reduce the cost of labor.

Description

Current collecting disc automatic feeding device, current collecting disc welding equipment and battery cell production line

Technical Field

The invention relates to the technical field of battery production equipment, in particular to a current collecting plate automatic feeding device, current collecting plate welding equipment and a battery cell production line.

Background

With the increasing labor cost, the labor cost required for manufacturing batteries is increasing. In the production process of the battery, a collector plate welding link is a key link for restricting the production efficiency of the whole production line. In the current collecting plate welding equipment, raw materials are provided for welding operation in a manual feeding mode, but the labor cost is high, and the current collecting plate is easy to damage in the manual conveying process.

In the manual carrying process, the current collecting discs are firstly placed in the material discs, the multiple material discs are stacked together for centralized feeding, then workers place the corresponding material discs at the feeding positions of the current collecting disc welding equipment for picking up the current collecting discs by the manipulator, and after one current collecting disc is taken out, the workers transfer the empty discs to the empty disc area, so that the operation is repeated cyclically, the manual participation in the whole process is more, the labor force release is not facilitated, and the manufacturing cost is high.

Disclosure of Invention

The embodiment of the invention provides a current collecting disc automatic feeding device, current collecting disc welding equipment and a battery cell production line, which are used for solving the defect that the battery manufacturing cost is high due to the fact that the current collecting disc feeding depends on manual work in the prior art and achieving low-cost and high-efficiency production.

The embodiment of the invention provides an automatic loading device for a current collecting disc, which comprises a support, wherein the support comprises a loading area and a blanking area, the blanking area is positioned on one side of the loading area, an automatic loading mechanism is installed on the loading area and used for lifting a material disc fully loaded with materials on a loading trolley, an automatic blanking mechanism is installed on the blanking area and used for stacking empty material discs which are not loaded with materials and transferring the empty material discs to the empty material trolley, and a material transferring mechanism is arranged at the top of the support and used for transferring the empty material discs in the loading area to the blanking area; the automatic feeding mechanism and the automatic discharging mechanism both comprise a lifting driving unit and an objective table, the driving end of the lifting driving unit is connected with the objective table to drive the objective table to move in the vertical direction of the feeding area, the objective table comprises a lifting plate, linear driving units and two supporting vertical plates arranged on two opposite sides of the lifting plate, the two linear driving units are arranged on the lifting plate, the two supporting vertical plates are correspondingly arranged on two sides below the material tray, the lifting driving units are in transmission connection with the lifting plate, and the two linear driving units are in one-to-one driving connection with the two supporting vertical plates.

According to the automatic loading device for the current collecting disc, the lifting driving unit comprises a screw rod mechanism and a rotating motor in transmission connection with the screw rod mechanism, at least one slide way is arranged on the support and parallel to a screw rod of the screw rod mechanism, and the lifting plate is fixedly connected with a slide block of the screw rod mechanism and is also in sliding fit with the slide way.

According to the automatic loading device for the collecting tray, provided by the invention, the lifting driving unit is a linear air cylinder or an electric push rod, and the driving end of the lifting driving unit is fixedly connected with the lifting plate.

According to the automatic collecting tray feeding device provided by the embodiment of the invention, the automatic blanking mechanism and the automatic feeding mechanism have the same structure.

According to the automatic loading device of the collecting tray, the material moving mechanism comprises a horizontal driving unit and a picking unit in transmission connection with the horizontal driving unit.

According to the automatic loading device of the collecting tray, the picking unit is in a suction cup structure or a clamping jaw structure.

According to the automatic loading device of the collecting tray, the feeding hole and the discharging hole of the bracket are provided with the protective gratings.

According to the automatic loading device of the current collecting disc, the top of the bracket is provided with a positioning structure corresponding to the loading area, or the top of the bracket is provided with a positioning structure corresponding to the loading area and the blanking area respectively;

the positioning structure comprises a positioning base plate and a movable base plate, the movable base plate is connected with a positioning cylinder, and the positioning base plate and the movable base plate are matched with each other to accurately position the material tray.

The embodiment of the invention also provides collecting tray welding equipment which comprises the collecting tray automatic feeding device.

The embodiment of the invention also provides a battery cell production line which comprises the current collecting plate welding equipment.

According to the automatic current collecting disc feeding device, the current collecting disc welding equipment and the battery cell production line, the automatic feeding mechanism, the automatic discharging mechanism and the material moving mechanism are matched with one another to achieve automatic feeding and discharging of the material disc, the feeding efficiency is improved, and the labor cost is reduced; the supporting vertical plate is connected with the linear driving unit, and the supporting vertical plate is opened and closed by means of the linear driving unit, so that the feeding time of the feeding trolley is saved, the feeding efficiency is further improved, and the labor cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a perspective view of an automatic loading device for a current collecting tray according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the manifold plate automatic feeding device shown in FIG. 1 at A;

FIG. 3 is a schematic view of the automatic loading device of the current collecting plate and the loading trolley according to the embodiment of the present invention;

FIG. 4 is a perspective view of the automatic feeding mechanism shown in FIG. 1;

FIG. 5 is a partial perspective view of an automatic loading device for a current collecting tray according to an embodiment of the present invention;

fig. 6 is a perspective view of the collector tray automatic feeding device shown in fig. 1 from another perspective.

Reference numerals:

10. a support; 11. a feeding area; 12. a blanking area; 13. fluency strips; 20. an automatic feeding mechanism; 21. an object stage; 22. a rotating electric machine; 23. a lead screw mechanism; 24. a slideway; 25. a lifting plate; 26. a linear drive unit; 27. supporting a vertical plate; 28. a motor fixing plate; 30. an automatic blanking mechanism; 40. a material moving mechanism; 41. a horizontal driving unit; 42. a pickup unit; 43. a clamping jaw cylinder; 50. a positioning structure; 51. a movable substrate; 60. a foot cup; 70. and (5) protecting the optical grating.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for the sake of clarity in describing the numbering of the components of the product and do not represent any substantial difference, unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The automatic loading device for the collecting tray according to the embodiment of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1, 5 and 6, the automatic loading device of the collecting tray provided by the embodiment of the invention comprises a bracket 10, wherein the bracket 10 is divided into two regions, one of which is used as a loading region 11, and the other is used as a blanking region 12. The bracket 10 forms a space for the material tray containing the collecting tray to move up and down in the feeding area 11 and the discharging area 12 respectively. Automatic feeding mechanism 20 is installed to material loading district 11, and automatic feeding mechanism 20 reciprocates to fill the material dish of collecting tray on will loading trolley and rise to the position of getting at material loading district 11 top. When the collecting tray in the material tray on the feeding trolley is taken, the next feeding trolley filled with the material enters the feeding area 11, and the automatic feeding mechanism 20 lifts and feeds the material from the bottom upwards again, so that the circulation is repeated. Correspondingly, the blanking area 12 is provided with an automatic blanking mechanism 30, and the automatic blanking mechanism 30 is used for stacking empty material trays. The top of the bracket 10 is provided with a material moving mechanism 40, and under the action of the material moving mechanism 40, the material tray of the feeding area 11 is taken out of the collecting tray and then is moved to the discharging area 12.

The automatic feeding mechanism 20 includes a lifting driving unit and an object stage 21, and a driving end of the lifting driving unit is connected to the object stage 21 to drive the object stage 21 to move in the vertical direction of the feeding area 11. The objective table 21 comprises a lifting plate 25, two linear driving units 26 and two supporting vertical plates 27, wherein the two linear driving units 26 are fixedly installed on two opposite sides of the lifting plate 25, the driving end of each linear driving unit 26 is fixedly connected with the supporting vertical plate 27, and the two supporting vertical plates 27 are located on two opposite sides of the lifting plate 25.

When the lifting device is used, the two supporting vertical plates 27 are oppositely arranged on two sides below the material tray, and the lifting driving unit is in transmission connection with the lifting plate 25. Under the drive of the lifting drive unit, the lifting plate 25 and the two supporting vertical plates 27 on the lifting plate move up and down together to lift the material tray. For example, in the process that the feeding trolley is pushed into the feeding area 11, the linear driving unit 26 drives the two supporting vertical plates 27 to be in an open state, after the feeding trolley is pushed to a proper position, the linear driving unit 26 drives the two supporting vertical plates 27 to be closed, so that the two supporting vertical plates 27 are positioned below a plurality of material trays stacked on the feeding trolley, then under the action of the lifting driving unit, the whole objective table 21 moves upwards, the material trays are transferred to an upper material level, the feeding trolley is pulled out for material preparation, when only one or two material trays remain in the feeding area 11, the feeding trolley with the material ready moves in again, after the material is completely taken, the linear driving unit 26 drives the two supporting vertical plates 27 to be open, the two supporting vertical plates 27 move downwards from two sides of the plurality of material trays stacked on the feeding trolley, and after the two supporting vertical plates 27 move downwards to a material tray at the lowest part of the feeding trolley, the two supporting vertical plates 27 are closed, then moves up under the action of the lifting driving unit and reciprocates circularly.

According to the automatic loading device for the collecting tray, provided by the embodiment of the invention, the automatic loading and unloading of the material tray are realized by means of the mutual matching of the automatic loading mechanism 20, the automatic unloading mechanism 30 and the material moving mechanism 40, the loading efficiency is improved, and the labor cost is reduced; the supporting vertical plate 27 is connected with the linear driving unit 26, and the supporting vertical plate 27 is opened and closed by means of the linear driving unit 26, so that the feeding time of the feeding trolley can be saved, the feeding efficiency is further improved, and the labor cost is reduced.

The fluent strips 13 matched with the feeding trolley are arranged at the bottoms of the feeding area 11 and the discharging area 12, and the fluent strips 13 arranged at the bottoms of the feeding area 11 and the discharging area 12 facilitate the feeding trolley to enter, and prevent the feeding trolley from being blocked in and out. And a proximity switch is arranged on one side of the support 10 facing the entering direction of the feeding trolley, and after the feeding trolley enters, the proximity switch is triggered, and the feeding trolley slides in place along the fluency strip 13. The controller controls the motion sequence of the automatic feeding mechanism 20, the automatic discharging mechanism 30 and the material moving mechanism 40 according to the trigger signal of the proximity switch, so that the three mechanisms are matched with each other. In addition, in order to fix the feeding trolley and avoid the feeding trolley from sliding in the feeding area 11, the automatic feeding device of the current collecting disc is also provided with a magnetic part which is a magnet and is used for fixing the feeding trolley after the feeding trolley runs in place.

In the automatic collecting tray feeding device provided by the embodiment of the invention, the positioning structures 50 are respectively arranged on the top of the bracket 10 corresponding to the feeding area 11 and the discharging area 12. Of course, the positioning structure 50 may be installed only at a position corresponding to the loading position in the loading area 11, and the embodiment of the present invention is not particularly limited. Wherein, location structure 50 includes location base plate and activity base plate 51, and activity base plate 51 is connected with the location cylinder, and location base plate mutually supports with activity base plate 51 with accurate positioning material dish. After the automatic feeding mechanism 20 lifts the material tray located at the top layer to the upper material level, the positioning cylinder pushes the movable base plate 51 to adjust the position of the material tray, so as to ensure that the material tray to be taken is located at the same position. The number of the movable substrates 51 is two, the two movable substrates 51 are arranged corresponding to two adjacent sides of the material tray, and correspondingly, the two positioning substrates are fixedly mounted on the support 10 and arranged corresponding to the other two sides of the material tray. Therefore, when the position of the material tray is adjusted, the position of the material tray is pushed and adjusted by the movable substrate 51 with the positioning substrate as a reference.

Wherein, the lifting driving unit can be a linear cylinder or an electric push rod. When the feeding trolley enters the feeding area 11 along the fluency strip 13, the lifting driving unit is located at the lowest position, the objective table is located below the material tray on the feeding trolley after the feeding trolley is in place, and the objective table moves upwards under the action of the lifting driving unit to lift the material tray to the material taking position. After the collecting disc taking mechanism picks up the collecting disc in a disc material disc, the lifting driving unit lifts the height of one material disc upwards, so that the collecting disc taking mechanism is ensured to take materials from the same horizontal height all the time. Besides, the lifting drive unit may further include a screw mechanism 23 and a rotating motor 22 in transmission connection with the screw mechanism 23. At this time, the driving end of the rotating motor 22 is in transmission connection with a screw rod in the screw mechanism 23 through a belt pulley, and a slider in the screw mechanism 23 is in transmission connection with the object stage 21. In order to ensure the running stability of the object stage 21, at least one slide way 24 is arranged parallel to the screw rod of the screw rod mechanism 23, and the object stage 21 is fixedly connected with the slide block of the screw rod mechanism 23 and is also matched with the slide way 24 in a sliding way. As shown in fig. 4, two sides of the screw rod mechanism 23 are respectively provided with a slide rail 24, the slide rails 24 can be slide rails, the object stage 21 is provided with slide grooves matched with the slide rails, and the object stage 21 moves up and down along with the slide block along the screw rod and the slide rails under the driving of the rotating motor 22.

In addition, sensors for detecting the lifting position and the lowering position of the automatic feeding mechanism 20 are mounted on the carriage 10. Specifically, after the automatic feeding mechanism 20 lifts the material tray to the top of the bracket 10, a sensor on the bracket 10, such as a proximity switch, is triggered, and the controller controls the movable substrate 51 to adjust the position of the material tray according to a signal acquired by the sensor; when the automatic feeding mechanism 20 moves down to the bottom of the feeding trolley, the controller controls the linear driving unit 26 to fold according to signals collected by the sensor at the bottom of the support 10 so as to lift the material tray. Of course, the sensor is not needed, and the running states of the lifting drive unit and other drive units can be directly controlled according to the movement stroke of the lifting drive unit.

On the basis of any embodiment, the automatic blanking mechanism 30 and the automatic feeding mechanism 20 have the same structure, so that the feeding area 11 and the blanking area 12 have the same structure, when the automatic collecting tray feeding device is installed in collecting tray welding equipment, the feeding area 11 and the blanking area 12 do not need to be distinguished, and the assembly of a wire body is facilitated. Of course, the structures of the feeding area 11 and the discharging area 12 may be different, for example, the lifting driving unit of the feeding area 11 adopts a linear cylinder, and the lifting driving unit of the discharging area 12 adopts a screw mechanism and a rotating motor connected with the screw mechanism.

As shown in fig. 3, in the automatic loading device of the collecting tray according to the embodiment of the present invention, a foot cup 60 is installed at the bottom of the support 10. The bottom of the bracket 10 is provided with a plurality of fixing plates which are fixed on the ground of the corresponding area of the production line through expansion bolts, and the axial direction of the driving shaft of the rotating motor is generally consistent with the axial direction of the screw rod in the screw rod mechanism 23, so as to save the occupied space. However, when the rotating motor fails, the maintenance is troublesome, the expansion bolts need to be manually disassembled, and the rotating motor can be replaced after the whole automatic current collecting disc feeding device is removed from the wire body. For this purpose, as shown in fig. 4, in the embodiment of the present invention, a motor fixing plate 28 extending outward is installed at the rear side of the bracket 10, the rotating motor 22 is installed on the motor fixing plate 28, and the driving force of the rotating motor 22 is transmitted to the lead screw by means of a gear transmission structure or a belt and sprocket transmission structure. Thus, after the support 10 is fixed to the corresponding region of the wire body, even if the rotating electrical machine 22 fails, the expansion bolts do not need to be detached, facilitating maintenance. It should be noted that the rear side of the support 10 refers to the side of the support 10 facing the driving side of the loading trolley, and the outward extension refers to the extension toward the outside of the loading area 11.

As shown in fig. 2, the material moving mechanism 40 includes a horizontal driving unit 41 and a picking unit 42 in transmission connection with the horizontal driving unit 41. When the collecting tray in the topmost tray in the loading area 11 is completely removed, the picking unit 42 picks up the empty tray, transfers the empty tray to the unloading area 12 under the driving of the horizontal driving unit 41, and then transfers the stacked empty trays to the loading trolley through the automatic unloading mechanism 30.

Specifically, as shown in fig. 2, the horizontal driving unit 41 is a linear motion module, and the pickup unit 42 is connected to a linear motion slide table on the linear motion module. For example, the horizontal driving unit 41 includes a servo motor and a ball screw connected to a driving end of the servo motor, a ball screw nut is fixedly connected to the linear motion sliding table, and the pickup unit 42 is mounted on the linear motion sliding table so as to reciprocate between the feeding area 11 and the discharging area 12.

Wherein the pickup unit 42 is a suction cup structure or a jaw structure. In the case of the suction cup structure, the driving end of the horizontal driving unit 41 is connected to a plurality of suction nozzles. When the automatic feeding device is used, the height of a material tray can be upwards sent by the automatic feeding mechanism 20, so that the material tray can be conveniently sucked by the suction nozzle; it is also possible to mount a pick-up drive unit on the linear motion slide of the horizontal drive unit 41, which pick-up drive unit is connected to the pick-up unit 42, and under the drive of the pick-up drive unit, the pick-up unit 42 is moved downwards so that the suction nozzles suck the empty trays. When the picking unit 42 is in a clamping jaw structure, as shown in fig. 2, the clamping jaw is in an L shape, a clamping jaw air cylinder 43 is installed on the linear motion sliding table, and the clamping jaw air cylinder 43 is connected with the clamping jaw so as to drive the two clamping jaws to move relatively or oppositely. Grooves are respectively formed in two opposite sides of the bottom of the material tray, the clamping jaw air cylinder 43 drives the two clamping jaws to be closed, the L-shaped bent portions of the clamping jaws are accommodated in the grooves to clamp the material tray, then the material tray is transferred to the upper portion of the blanking area 12 under the action of the horizontal driving unit 41, the clamping jaw air cylinder 43 drives the two clamping jaws to be loosened, the empty material tray falls and is stacked at the top of the blanking area 12, and then the automatic blanking mechanism 30 moves downwards to the height of one material tray to wait for the transfer of the next empty material tray.

In order to avoid the misoperation of workers in the material taking process and the interference of the automatic material taking process, the support 10 is also provided with a protective grating 70, when the hands of the workers stretch into the blanking area 12 or the loading area 11, the protective grating 70 is triggered, a protective program is started, and the operation of each driving unit is stopped.

Besides, the embodiment of the invention also provides a collector plate welding device which comprises the collector plate automatic feeding device. For example, one current collecting plate welding device may be provided with two current collecting plate automatic feeding devices, wherein one current collecting plate automatic feeding device is used for supplying the negative electrode tab, and the other current collecting plate automatic feeding device is used for supplying the positive electrode tab. For another example, the collecting tray welding equipment can also be provided with a collecting tray automatic feeding device, and the collecting tray automatic feeding device is used for feeding materials. It should be further noted that, when two current collecting plate automatic feeding devices are provided, the two current collecting plate automatic feeding devices may be disposed on the same side of the wire body, or on opposite sides of the wire body, specifically determined according to the arrangement positions of the welding stations of the positive current collecting plate and the negative current collecting plate.

In addition, the embodiment of the invention also provides a battery cell production line, which comprises the current collecting plate welding equipment. Specifically, on one cell production line, according to different setting modes of the cell transportation line body, four pieces of the above-mentioned current collector welding equipment or two pieces of current collector welding equipment may be set, specifically according to actual conditions.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The automatic current collecting disc feeding device is characterized by comprising a support, wherein the support comprises a feeding area and a discharging area located on one side of the feeding area, an automatic feeding mechanism is installed on the feeding area and used for lifting a material disc fully loaded with materials on a feeding trolley, an automatic discharging mechanism is installed on the discharging area and used for stacking empty material discs which are not loaded with the materials and transferring the empty material discs to the empty material trolley, and a material transferring mechanism is arranged at the top of the support and used for transferring the empty material discs in the feeding area to the discharging area; the automatic feeding mechanism and the automatic discharging mechanism both comprise a lifting driving unit and an objective table, the driving end of the lifting driving unit is connected with the objective table to drive the objective table to move in the vertical direction of the feeding area, the objective table comprises a lifting plate, linear driving units and two supporting vertical plates arranged on two opposite sides of the lifting plate, the two linear driving units are arranged on the lifting plate, the two supporting vertical plates are correspondingly arranged on two sides below the material tray, the lifting driving units are in transmission connection with the lifting plate, and the two linear driving units are in one-to-one driving connection with the two supporting vertical plates.

2. The automatic loading device of current collecting disc according to claim 1, wherein the lifting driving unit comprises a screw mechanism and a rotating motor in transmission connection with the screw mechanism, at least one slide way is arranged on the bracket in parallel with a screw rod of the screw mechanism, and the lifting plate is fixedly connected with a slide block of the screw mechanism and is also in slidable fit with the slide way.

3. The automatic loading device of collecting tray according to claim 1, wherein the lifting driving unit is a linear cylinder or an electric push rod, and the driving end of the lifting driving unit is fixedly connected with the lifting plate.

4. The automatic collecting tray feeding device according to any one of claims 1 to 3, wherein the automatic blanking mechanism is identical in structure to the automatic feeding mechanism.

5. The automatic collecting tray feeding device according to any one of claims 1 to 3, wherein the moving mechanism comprises a horizontal driving unit and a picking unit in transmission connection with the horizontal driving unit.

6. The apparatus according to claim 5, wherein the pick-up unit is a suction cup structure or a jaw structure.

7. The automatic feeding device of the collecting tray according to claim 1, wherein the feeding port and the discharging port of the bracket are provided with protective gratings.

8. The automatic loading device of the current collecting plate according to claim 1, wherein a positioning structure is installed on the top of the bracket corresponding to the loading area, or a positioning structure is installed on the top of the bracket corresponding to the loading area and the unloading area respectively;

9. Manifold disc welding apparatus, characterized in that it comprises an automatic manifold disc feeding device according to any of claims 1 to 8.

10. A cell production line, comprising the collector tray welding apparatus of claim 9.