CN209981257U

CN209981257U - Battery piece placing device

Info

Publication number: CN209981257U
Application number: CN201920671357.0U
Authority: CN
Inventors: 叶欣; 何守龙; 洪昀; 高振波
Original assignee: Hangzhou Zhongwei Photoelectricity Co Ltd
Current assignee: Hangzhou Zhongwei Photoelectricity Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-21
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to a photovoltaic module production facility especially relates to a device is put to battery piece belongs to the industrial automation field. A device is put to battery piece, put platform, detector, sender, battery piece locator and battery piece including the battery piece and put the ware, the setting mainly used of sender conveys the battery piece to another position by a position, the setting of sender has shortened the battery piece and has put the removal stroke of putting the ware, and then, has improved putting the precision and putting efficiency of battery piece, the battery piece is being difficult to damage putting the in-process. The setting of conveyer has reduced the dead time of battery piece, that is to say, does not need the battery piece to put the ware and drive the battery piece and remove far stroke, and the battery piece is difficult to receive great centrifugal force or air resistance putting the in-process, and the battery piece is difficult to the breakage.

Description

Battery piece placing device

Technical Field

The utility model relates to a photovoltaic module production facility especially relates to a device is put to battery piece belongs to the industrial automation field.

Background

The solar photovoltaic industry has been continuously developed for decades, the power generation efficiency of the traditional series welding type assembly basically reaches the limit, and how to further improve the power generation efficiency of the photovoltaic assembly is the basic direction of the industry development. The research direction for improving the power generation efficiency of the module in the market at present mainly comprises two directions of improving the conversion efficiency of the solar cell and optimizing the packaging form of the module, and the high efficiency of the back contact cell and the packaging form of the module without a main grid and a welding strip enable the back contact cell module to have considerable advantages in power generation efficiency compared with the traditional module, so that the back contact cell can occupy a certain position in future photovoltaic development.

The carrier plate is required to be used as a bearing object in the preparation process of the existing back contact battery, the size of the carrier plate is about 1m by 2m according to the difference of the sizes of the components, and due to the characteristics of the back contact battery, the existing equipment needs to be placed one by one when the battery is placed, and the action flow is as follows: 1. the manipulator grabs the battery piece from the material box; 2. carrying the battery piece to the upper part of the visual detection station; 3. the vision system carries out quality and positioning detection on the battery piece; 4. and the manipulator corrects the posture of the battery piece according to the acquired posture information of the battery piece and puts the battery piece on the support plate.

Among the existing equipment, magazine and visual inspection station all are located the position outside the support plate, and this structure has following not enough: 1. the average distance between the visual detection station and the battery piece placing position is far, the piece taking stroke and the piece placing stroke of the manipulator are large, the maximum stroke of the manipulator exceeds 1m, and the time is long; 2. because the manipulator is got and is put the stroke great, and required manipulator arm exhibition is longer, therefore when the battery piece was placed to the manipulator, the battery piece can receive great centrifugal force, leads to the battery piece breakage easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a device is put to battery piece is provided to improve putting of battery piece efficiency and prevent that the battery piece is putting the in-process breakage.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

a battery piece placing device comprises a battery piece placing platform for positioning the final position of a battery piece, a bearing piece for bearing the battery piece, a detector for detecting the battery piece, a battery piece transfer device, a conveyer for conveying the battery piece and enabling the battery piece to bear negative pressure, a battery piece positioner and a battery piece placing device, wherein the battery piece transfer device grabs the battery piece in the bearing piece and transfers the battery piece to the detector for detection, the battery piece detected by the detector is transferred to the conveyer by the battery piece transfer device, and the battery piece placing device grabs the battery piece positioned on the conveyer and places the battery piece after being positioned by the battery piece positioner to the battery piece placing platform.

A device is put to battery piece, put platform, detector, sender, battery piece locator and battery piece including the battery piece and put the ware, the setting mainly used of sender conveys the battery piece to another position by a position, the setting of sender has shortened the battery piece and has put the removal stroke of putting the ware, and then, has improved putting the precision and putting efficiency of battery piece, the battery piece is being difficult to damage putting the in-process. The setting of conveyer has reduced the dead time of battery piece, that is to say, does not need the battery piece to put the ware and drive the battery piece and remove far stroke, and the battery piece is difficult to receive great centrifugal force or air resistance putting the in-process, and the battery piece is difficult to the breakage.

Preferably, the cell transfer device comprises a cross beam and a sliding seat arranged on the cross beam and reciprocating along the cross beam, a driver for driving the sliding seat to reciprocate is arranged on the cross beam, a transfer grabber is arranged on the sliding seat, the transfer grabber is arranged on the sliding seat through a reciprocating motion output device, and the motion direction of the transfer grabber is perpendicular to the motion direction of the sliding seat.

The transfer grabber has the freedom of movement in at least two directions, so that the transfer grabber can place the battery piece at a target position, and the service performance of the battery piece transfer device is optimized. And, the battery piece translator sets up the position flexibility.

Preferably, the detector comprises a first visual camera, the first visual camera is located between the bearing part and the conveyor, the first visual camera is located below a motion track of the battery piece transfer device, and the first visual camera detects the battery pieces on the battery piece transfer device from bottom to top.

Adopt first vision camera to detect the battery piece, improved the detection precision of battery piece.

The first vision camera detects the battery piece from bottom to top, and the arrangement of the first vision camera cannot interfere with the action of the battery piece transfer device, so that the performance of the detector is optimized.

Preferably, the conveyer is located including the box that has the negative pressure chamber, cover conveyer belt and drive on the box the conveyer belt is around the actuating mechanism of box gyration be provided with the absorption hole on the box be provided with the through-hole on the conveyer belt, the absorption hole is located through the through-hole from bottom to top absorption battery piece on the conveyer belt, actuating mechanism includes driving pulley and driven pulley, the conveyer belt cover is located driving pulley, driven pulley are last.

The conveyor has a simple structure, is easy to manufacture, reduces the manufacturing cost of the conveyor, and reduces the use cost of the battery piece placing device.

Preferably, the adsorption hole and the through hole are both strip-shaped, and when the adsorption hole is partially overlapped with the through hole, the partially overlapped adsorption hole is not parallel to the through hole.

The scheme enables the through hole to be partially overlapped with the adsorption hole, namely the adsorption hole is easy to adsorb the battery piece through the through hole, and the performance of the conveyor is optimized.

Preferably, the conveyor further comprises a negative pressure generator for generating a negative pressure in the negative pressure chamber, the negative pressure generator being a vacuum source.

The negative pressure generator has simple structure and easy processing, and reduces the manufacturing cost of the conveyor.

Preferably, the negative pressure cavity comprises a first cavity and a second cavity which are independent of each other, and the battery piece placer grabs the battery piece adsorbed by the second cavity.

The first cavity and the second cavity are independent from each other, the vacuum state of the second cavity can be independently controlled, the battery piece placing device is facilitated to grab the battery pieces, and the performance of the conveyor is optimized.

Preferably, the battery piece placing device comprises a manipulator and a placing grabber, and the manipulator drives the placing grabber to perform placing actions.

The manipulator has flexible space transmission performance, and the placing precision of the battery piece is improved.

Preferably, the battery piece locator includes the second vision camera, the second vision camera includes the looks body and supports the support of camera body, the battery piece is fixed a position to the second vision camera from top to bottom.

The camera body is flexibly arranged due to the arrangement of the support, and the performance of the battery piece positioner is optimized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a flow chart of example 1.

FIG. 2 is a flowchart of example 2.

Fig. 3 is a schematic view of the device for placing battery plates of the present invention.

Fig. 4 is a schematic diagram of a cell transfer machine.

Fig. 5 is a schematic diagram of a conveyor.

Description of reference numerals:

1. the battery piece placing platform comprises a battery piece placing platform body, 2 a bearing piece, 3 a detector, 4 a battery piece transferring device, 5 a conveyer, 6 a battery piece positioning device, 7 a battery piece placing device, 8 a cross beam, 9 a sliding seat, 10 a driver, 11 a transferring grabber, 12 a reciprocating motion output device, 13 a box body, 14 a conveying belt, 15 a through hole, 16 a second cavity, 17 a mechanical arm and 18 a placing grabber.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.

In order to make those skilled in the art better understand the technical solution of the present invention, examples 1 and 2 describe the placing method of the battery piece, so that those skilled in the art can better understand the working process of the present invention and the beneficial effects of the present invention over the prior art.

Example 1

Referring to fig. 1, a method for placing battery plates includes the following steps:

s10, detecting the battery piece;

s20, transferring the detected battery piece to a target position, wherein the detected battery piece is subjected to negative pressure in the transferring process;

and S30, placing the battery piece at the target position to the final position.

The beneficial effects of the utility model are introduced in combination with the method of putting of battery piece among the prior art below.

In the prior art, the manipulator 17 is directly used to move the battery piece from one position to another position, for example, the manipulator 17 is used to take out the battery piece from the carrier 2 and place the battery piece in the final position. Specifically, the carrier 2 has a certain distance from the final position of the cell, and in addition, the area of the photovoltaic module is large, and the final position of each cell is different, thereby causing the manipulator 17 to grab the cell and move a large stroke in a suspended state.

In the process of grabbing a battery piece by the manipulator 17, in order to improve the placing efficiency of the battery piece, the manipulator 17 is generally required to have a high action speed, and the moving speed of the manipulator 17 is measured in meters/second, that is, the manipulator 17 grabs the battery piece and can bear high air resistance in the moving process. The battery piece is thin and fragile in texture, and the battery piece is easily broken due to air resistance in the moving process, so that the battery piece is easily broken by the placing method of the battery piece in the prior art.

In the technical solution disclosed in this embodiment, after the cell is detected, the cell is conveyed to the target position, and the cell is subjected to negative pressure in the conveying process, i.e. the cell is not conveyed in the air, and the cell is adsorbed on the carrier by the negative pressure, for example, the conveyor 14 with negative pressure capability is used to convey the detected cell, which enables the cell not to be broken due to air resistance in the conveying process, and the conveying step is set such that the cell does not need to move in a large stroke when being placed, and the specific placing stroke of the cell only depends on the area of the photovoltaic module, at this time, the action speed of the placing structure can be properly reduced to prevent the cell from being broken in the placing process, and correspondingly, due to the setting of the conveying step, the overall work efficiency of placing the cell is not affected when the action speed of the placing structure is reduced, that is to say, even if the speed of the placing structure is reduced, the battery piece can still be kept to have reasonable placing efficiency.

Correspondingly, the battery piece bears the negative pressure in transfer process, can also keep the position precision of battery piece, is favorable to improving putting efficiency and putting the precision of battery piece.

The detection of the battery cell in the present embodiment means detection of the presence or absence of breakage or the like in the appearance of the battery cell.

The inclusion in this specification means that features other than those disclosed may be included in the specification. For example, the inclusion in the method claims may include necessary debugging, verification steps, etc. in addition to the inclusion of disclosed steps. The product claims may include necessary fasteners, anti-loosening elements, etc. in addition to the features disclosed.

Example 2

This example is a possible optimization scheme for example 1, in combination with example 1.

As shown in fig. 2, S05, taking out the battery piece located in the carrier 2, and transporting the taken out battery piece to a detection station, where the battery piece is taken out from the carrier 2 and enters the detection station, where the detection station is the position where the battery piece is detected, and may be a fixed spatial position;

s10, detecting the battery piece, namely detecting the battery piece positioned at the detection station, and detecting whether the appearance of the battery piece is damaged or not in the step;

s20, transferring the detected battery piece to a target position, wherein the detected battery piece bears negative pressure in the transferring process, the target position is a transition position, the battery piece is grabbed at the position, and the target position can be a fixed space position;

s25, grabbing the battery piece located at the target position;

s26, verifying the position accuracy of the grabbed battery piece, mainly detecting the relative position accuracy of the grabbed battery piece relative to the grabbing mechanism in the step, so that the grabbing mechanism can make appropriate correction when placing the battery piece, and the placing accuracy of the battery piece is improved;

In this embodiment, the steps disclosed above may also include other suitable steps, for example, the final position of the battery piece is defined as the battery piece placing platform 1, the placing platform should be debugged before the battery piece is actually placed, and the debugging of the battery piece placing platform 1 refers to the position debugging of the battery piece placing platform 1.

That is, this embodiment may further include:

and S00, debugging the position of the battery piece placing platform 1. This step should be performed before S10 to make the placing operation of the battery pieces continuous.

Example 3

The present embodiment discloses a battery plate placing device, and the method for placing the battery plate by combining the device can refer to embodiment 1 or embodiment 2, which is not described herein again.

A device for placing battery pieces is used for placing the battery pieces from one position to another position, for example, the battery pieces are taken out from a bearing piece 2 and placed on a component of a photovoltaic module.

As shown in fig. 3, the battery plate placing device includes a battery plate placing platform 1 for positioning a final position of a battery plate, a bearing member 2 for bearing the battery plate, a detector 3 for detecting the battery plate, a battery plate transfer device 4, a conveyer 5 for conveying the battery plate and making the battery plate bear negative pressure, a battery plate positioner 6 and a battery plate placing device 7, wherein the battery plate transfer device 4 grabs the battery plate in the bearing member 2 and transfers the battery plate to the detector 3 for detection, the battery plate detected by the detector 3 is transferred to the conveyer 5 by the battery plate transfer device 4, and the battery plate placing device 7 grabs the battery plate on the conveyer 5 and places the battery plate on the battery plate placing platform 1 after being positioned by the battery plate positioner 6.

Specifically, the detector 3 is mainly used for detecting whether the appearance of the battery piece is damaged.

The battery plate positioner 6 is mainly used for acquiring the position of a battery plate relative to the battery plate placing device 7, so that the battery plate placing device 7 can make appropriate correction when placing the battery plate, and the placing precision of the battery plate is improved.

The beneficial effects of this implementation over the prior art are clearly illustrated in example 1 and will not be described herein.

The specific fixing position of the relevant component in this embodiment is not limited as long as the corresponding function can be realized.

For example, the battery piece placing platform 1 may be located on a foundation or may be disposed on the foundation through a rack. The basis in this description refers to the ground or floor level or other structure with load-bearing capacity on which the relevant components are carried. The carrier 2, the cell transfer device 4, the conveyor 5 and the cell placement device 7 can be disposed on a base, the detector 3 can be disposed on a base, and the cell positioner 6 can be disposed on a base or the conveyor 5.

Relevant part can directly set up for the setting of basis in this embodiment, also can set up through other bearing structure cooperation fastening structures, and its setting mode does not do the restriction, and the technical staff in the art can rationally set up according to service environment.

Example 4

This example describes a possible solution of the cell transfer device 4 in combination with example 4.

As shown in fig. 4, the cell transfer device 4 includes a beam 8, a slide 9 disposed on the beam 8 and reciprocating along the beam 8, a driver 10 disposed on the beam 8 for driving the slide 9 to reciprocate, a transfer gripper 11 disposed on the slide 9, the transfer gripper 11 disposed on the slide 9 through a reciprocating follower 12, and a moving direction of the transfer gripper 11 being perpendicular to a moving direction of the slide 9.

The transfer gripper 11 comprises a first base body and a first vacuum cup arranged on the first base body.

Specifically, the driver 10 may be a linear motor or a cylinder outputting a linear motion or a hydraulic cylinder outputting a linear motion. The driver 10 may also be a servo motor that outputs a rotational motion, and a motion conversion mechanism that converts the rotational motion output by the servo motor into a linear motion, and the motion conversion mechanism may be a screw-nut pair, or alternatively, the motion conversion mechanism may be a rack-and-pinion pair.

The reciprocating motion follower 12 outputs linear motion, the reciprocating motion follower 12 may be a cylinder or a hydraulic cylinder, of course, the structure of the reciprocating motion follower 12 may also refer to the driver 10, and the specific scheme is not limited.

The cross beam 8 may be fixed to the foundation, or the cross beam 8 may be fixed to the foundation by a frame. The cross member 8 may be provided with a rail for guiding the slide 9, which may be of an integral construction with the cross member 8. The driver 10 can be fixed on the cross beam 8 through bolts, and the driver 10 drives the sliding seat 9 to move.

The reciprocating follower 12 may be fixed to the slide 9 by bolts, and the transfer gripper 11 may be fixed to a movable part of the reciprocating follower 12 by bolts. When the reciprocating motion follower 12 is a cylinder, the movable component refers to a piston rod of the cylinder, and at this time, a cylinder body of the cylinder is fixed.

The first base body of the transfer gripper 11 may be fixed to the movable part by bolts. The first suction cup can be adhesively or removably attached to the first substrate. For example, the first suction pad may be fixed to the first substrate by screws.

The first suction cup is a vacuum suction cup, and the first suction cup should include a suction force generator, such as an air pump. So that the first sucking disc can conveniently grab the battery piece or release the battery piece, the suction force of the first sucking disc can be conveniently controlled, and the performance of the first sucking disc is optimized.

Of course, the transferring grabber 11 may also be of other structures with grabbing capacity, but since the thickness of the battery sheet is relatively thin, the battery sheet is not easily damaged by grabbing the battery sheet by using the first suction disc.

Taking the slide carriage 9 moving in the horizontal direction as an example, the reciprocating output device 12 moves in the vertical direction, and the scheme enables the first suction disc to have two degrees of freedom in two directions, thereby being beneficial to transferring the battery piece.

Of course, the cell transfer device 4 may also directly use the robot 17 with multiple degrees of freedom to make the transfer of the cell more flexible.

Example 5

This embodiment describes one possible configuration of the detector 3 and the cell positioner 6, which may be combined with embodiment 3 or embodiment 4.

The detector 3 comprises a first visual camera located between the carrier 2 and the conveyor 5 and below the movement trajectory of the cell transfer 4, which detects from bottom to top the cells located on the cell transfer 4.

The battery piece locator 6 comprises a second visual camera, the second visual camera comprises a camera body and a support for supporting the camera body, and the second visual camera locates the battery piece from top to bottom.

The arrangement positions of the detector 3 and the cell positioner 6 are not particularly limited, and can be reasonably selected by a person skilled in the art according to needs.

Specifically, the detector 3 and the cell locator 6 both adopt a pattern phase acquisition mode to perform related detection or location. The specific structures of the detector 3 and the cell positioner 6 are not limited, and other structures with similar functions can be adopted instead.

Example 6

This embodiment introduces possible solutions of the conveyor 5, and any one of the embodiments 3 to 5 may be combined.

As shown in fig. 5, the conveyor 5 includes a box 13 having a negative pressure cavity, a conveyor belt 14 sleeved on the box 13, and a driving mechanism for driving the conveyor belt 14 to rotate around the box 13, the box 13 is provided with an adsorption hole, the conveyor belt 14 is provided with a through hole 15, the adsorption hole adsorbs a battery piece located on the conveyor belt 14 from bottom to top through the through hole 15, the driving mechanism includes a driving pulley and a driven pulley, and the conveyor belt 14 is sleeved on the driving pulley and the driven pulley. The driving pulley can be driven to rotate by a servo motor. The position of the driven pulley relative to the driving pulley should be adjustable to tension the conveyor belt 14 and improve the conveying accuracy of the conveyor belt 14.

Since the conveyor belt 14 is in motion, the through holes 15 on the conveyor belt 14 will necessarily coincide with the suction holes on the box 13. The arrangement of the driving pulley, the driven pulley and the servo motor is not limited, and those skilled in the art can refer to the arrangement in the prior art.

For example, both the driving pulley and the driven pulley may rotate about their axes.

The adsorption hole and the through hole 15 are both strip-shaped, and when the adsorption hole is partially overlapped with the through hole 15, the partially overlapped adsorption hole is not parallel to the through hole 15. The adsorption holes and the through holes 15 are both strip-shaped, so that the overlapping time of the adsorption holes and the through holes 15 is prolonged, and the battery pieces are well positioned. The unparallel of the adsorption holes and the through holes 15 is mainly beneficial to the partial coincidence of the adsorption holes and the through holes 15 so as to be beneficial to the positioning of the battery piece.

The conveyor 5 further comprises a negative pressure generator, which is a vacuum source, for creating a negative pressure in the negative pressure chamber. The vacuum source may be a suction fan or the like. The vacuum source is conventional in the art and is readily available commercially, and its specific construction is not described in detail. The fixing mode of the vacuum source is not particularly limited, and can be reasonably set by a person skilled in the art according to needs.

The negative pressure cavity comprises a first cavity and a second cavity 16 which are independent from each other, and the battery piece placer 7 grabs the battery piece adsorbed by the second cavity 16.

The number and the position of the first cavities are not limited, and the second cavities 16 are arranged according to the practical use environment, and are mainly easy to grasp the battery piece. The generation of negative pressure in the second cavity 16 and the generation of negative pressure in the first cavity adopt independent equipment, and when the battery piece placer 7 grabs the battery piece adsorbed by the second cavity 16, the vacuum degree of the second cavity 16 is cancelled, so as to be beneficial to the grabbing of the battery piece.

Example 7

This embodiment describes a possible structure of the battery plate placer 7 in combination with any one of embodiments 3 to 6.

The battery piece placing device 7 comprises a manipulator 17 and a placing grabber 18, and the manipulator 17 drives the placing grabber 18 to perform placing actions. The placing gripper 18 comprises a second base body and a second vacuum chuck arranged on the second base body.

The placing grabber 18 can be fixed on the manipulator 17 through bolts, and the placing grabber 18 can also be fixed on the manipulator 17 through other methods, and the specific scheme is not limited.

The structure of the placing gripper 18 is referred to as the transfer gripper 11 and will not be described in detail.

In addition, the battery piece placing device disclosed by the application can further comprise a necessary control system, and the control system can be a computer-based control system so as to realize automation by correspondingly controlling the whole battery piece placing device.

In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A battery plate placing device is characterized by comprising a battery plate placing platform (1) for positioning the final position of a battery plate, a bearing piece (2) for bearing the battery plate, a detector (3) for detecting the battery plate, a battery plate transfer device (4), a conveyer (5) for conveying the battery plate and enabling the battery plate to bear negative pressure, a battery plate positioner (6) and a battery plate placing device (7), the battery piece shifter (4) grabs the battery pieces in the bearing piece (2), transferring the battery piece to the detector (3) for detection, transferring the battery piece detected by the detector (3) to the conveyer (5) by the battery piece transferring device (4), the battery piece placing device (7) grabs the battery pieces on the conveyor (5), and the battery plate is positioned by the battery plate positioner (6) and then placed on the battery plate placing platform (1).

2. The battery plate placing device as claimed in claim 1, wherein: cell transfer ware (4) include crossbeam (8), set up in on crossbeam (8) and follow crossbeam (8) reciprocating motion's slide (9) be provided with the drive on crossbeam (8) slide (9) reciprocating motion's driver (10) be provided with on slide (9) and shift grabber (11), shift grabber (11) set up through reciprocating motion follower (12) in on slide (9), shift grabber (11) the direction of motion with the direction of motion of slide (9) is perpendicular.

3. The battery plate placing device as claimed in claim 1, wherein: the detector (3) comprises a first visual camera located between the carrier (2) and the conveyor (5) and located below the movement trajectory of the cell transfer (4), the first visual camera detecting from bottom to top the cells located on the cell transfer (4).

4. The battery plate placing device as claimed in claim 1, wherein: conveyer (5) are located including box (13), the cover that has the negative pressure chamber conveyer belt (14) and drive on box (13) conveyer belt (14) are around the actuating mechanism of box (13) gyration be provided with the adsorption hole on box (13) be provided with through-hole (15) on conveyer belt (14), the adsorption hole adsorbs from bottom to top through-hole (15) and is located battery piece on conveyer belt (14), actuating mechanism includes driving pulley and driven pulley, conveyer belt (14) cover is located on driving pulley, the driven pulley.

5. The device for placing the battery pieces as claimed in claim 4, wherein: the adsorption holes and the through holes (15) are both strip-shaped, and when the adsorption holes are partially overlapped with the through holes (15), the partially overlapped adsorption holes are not parallel to the through holes (15).

6. The device for placing the battery pieces as claimed in claim 4, wherein: the conveyor (5) further comprises a negative pressure generator for creating a negative pressure in the negative pressure chamber, the negative pressure generator being a vacuum source.

7. The device for placing the battery pieces as claimed in claim 6, wherein: the negative pressure cavity comprises a first cavity and a second cavity (16) which are independent of each other, and the battery piece placing device (7) is used for grabbing the battery pieces adsorbed by the second cavity (16).

8. The battery plate placing device as claimed in claim 1, wherein: the battery piece placing device (7) comprises a manipulator (17) and a placing grabber (18), wherein the manipulator (17) drives the placing grabber (18) to perform placing action.

9. The battery plate placing device as claimed in claim 1, wherein: the battery piece positioner (6) comprises a second visual camera, the second visual camera comprises a camera body and a support for supporting the camera body, and the second visual camera positions the battery piece from top to bottom.