CN108408402A - The continuous adsorption system of solar battery sheet and continuous adsorption method - Google Patents

Abstract

The present invention discloses a kind of continuous adsorption system of solar battery sheet first, including rack, installation is equipped with bellows in the rack, the bellows are equipped with aspiration channel, the bottom surface of the bellows is equipped at intervals with the adsorption hole group for adsorbing solar battery sheet along its length, the half for being smaller than the width equal to the solar battery sheet on the bellows length direction between adsorption hole group described in two adjacent groups；It is additionally provided in the rack for conveying the solar battery sheet being attracted on the bellows bottom surface to the conveying mechanism of designated position；It is corresponded with adsorption hole group described in each group on the bellows and is equipped with absorption switch, the opening and closing of all adsorption holes of the adsorption hole group of the absorption switch corresponding setting of synchronous control.The invention also discloses a kind of continuous adsorption methods of solar battery sheet.The continuous adsorption system of solar battery sheet and continuous adsorption method of the present invention can avoid the problem that stopping line waiting completely.

Description

Solar cell continuous adsorption system and continuous adsorption method

technical field

The invention belongs to the technical field of automatic production equipment for solar cells, in particular to a continuous adsorption system and continuous adsorption method for solar cells.

Background technique

In the current technology, after the suction cup is used to absorb the solar defect sheet, the motor drives the suction cup to move to the top of the material box, puts the solar defect sheet into the material box, and then the motor drives the suction cup to return to the original position to continue to absorb the solar defect sheet. Although this method can meet the purpose of absorbing solar defect sheets, it takes a long time to go back and forth, and the production line needs to stop and wait for the suction cup to return to its position before continuing to work to absorb the next sheet, which affects production capacity.

In order to avoid the above-mentioned problem of too long round-trip time of a suction cup, some equipment currently adopts the structure of double suction cups and double material boxes, that is, a material box is installed on both sides of the production line, and when the solar defect sheet comes, the No. 1 suction cup absorbs it and puts it in the The No. 1 material box inside the production line, at this time, the No. 2 suction cup is just above the production line, waiting for the next defective piece; when the next defective piece arrives, the No. 2 suction cup located directly above the production line will work, and put the solar defective piece on the outside. In the No. 2 material box, the No. 1 suction cup is just above the production line at this time, waiting for the next defective piece, and so on. Although this method can shorten the round-trip time to a certain extent, it still has the following disadvantages:

1) The inner material box is too far away from the edge of the workbench, making it inconvenient to take materials;

2) When the machine is working, it is very unsafe to take materials from the inner material box;

3) Although the round-trip time is shortened, there is no suction cup directly above the production line during the process of sucker No. 1 and No. 2 sucker absorbing and transporting the solar defect sheet to the corresponding material box, that is, if there is a solar defect at this time If the film needs to be adsorbed, it still needs to stop the line and wait.

That is to say, the structural form of double suction cups and double material boxes cannot completely avoid the problem of stopping the line and waiting. That is to say, the existing equipment uses a suction cup to pick up defective solar panels and place them in a designated position, and then the suction cup returns to wait for the next defective panel. When two or more defective panels appear in succession, the production line needs to be suspended and wait for the suction cup to return to its position before continuing. Work, frequent suspension of the production line not only increases mechanical loss, but also seriously affects production efficiency, making production cost high.

Contents of the invention

In view of this, the object of the present invention is to provide a continuous adsorption system and continuous adsorption method for solar cells, which can not only meet the technical purpose of placing defective solar cells in a designated position, but also completely avoid the problem of stopping the line and waiting.

To achieve the above object, the present invention provides the following technical solutions:

The present invention first proposes a continuous adsorption system for solar cells, including a frame, on which a bellows is installed, on which a suction pipe is arranged, and the bottom surface of the bellows is provided with air suction pipes at intervals along its length direction. For the adsorption hole groups that absorb solar cells, the distance between two adjacent groups of adsorption holes is less than or equal to half of the width of the solar cells in the length direction of the bellows; the frame is also equipped with a conveying mechanism for conveying the solar cells adsorbed on the bottom surface of the bellows to a designated position;

The bellows is provided with an adsorption switch corresponding to each group of the adsorption hole groups, and the adsorption switch synchronously controls the opening and closing of all the adsorption holes of the corresponding adsorption hole group.

Further, the conveying mechanism includes a conveying motor fixedly installed on the frame and transmission pulleys arranged at both ends of the bellows, a conveying belt is set between the two conveying pulleys, and the conveying motor is connected to A transmission connection between the transmission pulleys.

Further, the output shaft of the conveying motor is provided with a driving synchronous pulley, and one end of the driving pulley connected to it is provided with a driven synchronous pulley corresponding to the driving synchronous pulley, and the driving synchronous pulley is connected to the driving synchronous pulley. A synchronous transmission belt is arranged between the driven synchronous pulleys.

Further, the conveyor belts are arranged in multiples at intervals along the width direction of the bottom surface of the bellows, and an adsorption gap is provided between two adjacent conveyor belts.

Further, each group of adsorption holes includes at least one adsorption hole corresponding to the adsorption gap.

Further, each group of adsorption holes includes at least one adsorption hole.

Further, the adsorption switch includes a cylinder fixedly installed on the bellows, the piston rod of the cylinder extends into the bellows, and the piston rod of the cylinder is equipped with a corresponding switch for opening and closing. A compact of all the adsorption holes of the above adsorption hole group.

Further, a valve island for independently controlling the outward extension or inward contraction of the piston rod of each cylinder is installed on the frame.

The present invention also proposes a continuous adsorption method for solar cells using the above-mentioned solar cell continuous adsorption system. At least two groups of adsorption hole groups are opened, and the solar cell is adsorbed on the bottom surface of the wind box; at the same time, the conveying mechanism is activated, and when the solar cell is transported to the designated position by the conveying mechanism, when the solar cell When the battery sheet is transported directly below a certain adsorption hole group, the adsorption switch corresponding to the adsorption hole group controls all the adsorption holes of the adsorption hole group to open; when the solar battery sheet leaves a certain When directly below the adsorption hole group, the adsorption switch corresponding to the adsorption hole group controls all the adsorption holes of the adsorption hole group to close; All adsorption hole groups directly above the solar cell are closed.

Further, the linear speed of the conveying mechanism and the linear speed of the solar cell production line meet:

a/v ₁ < b/v ₂

Wherein, a is the width of the solar cells in the length direction of the bottom surface of the bellows;

v ₁ is the linear velocity of the conveying mechanism;

b is the distance between the same ends of two adjacent solar cells on the solar cell production line;

v ₂ is the line speed of the solar cell production line.

The beneficial effects of the present invention are:

The solar cell continuous adsorption system of the present invention can use the negative pressure of the bellows to adsorb the solar cells on its bottom surface, and use the conveying mechanism to transport the solar cells to the set position; Setting, after the current solar cell is transported away, the adsorption hole group located directly above the solar cell production line is exposed. If there are solar cells that need to be adsorbed at this time, these adsorption hole groups can be activated immediately to continue to absorb the solar cell, that is It can meet the requirements of continuous adsorption, that is, it overcomes the problem that the existing adsorption equipment needs to wait for the suction cup to return, can realize continuous and uninterrupted production, and can effectively avoid the production line of solar cells from stopping and waiting, which can effectively improve production efficiency and avoid solar cells. The mechanical loss caused by the downtime of the film production line.

Description of drawings

In order to make the purpose, technical scheme and beneficial effect of the present invention clearer, the present invention provides the following drawings for illustration:

Fig. 1 is the structural representation of the embodiment of the continuous adsorption system of solar cells of the present invention;

Fig. 2 is the structural schematic view of the continuous adsorption system for solar cells in this embodiment after removing the timing belt shield and casing;

Fig. 3 is the bottom view of Fig. 2;

Fig. 4 is the axonometric view of Fig. 2;

Fig. 5 is the axonometric view of Fig. 3;

Fig. 6 is a schematic diagram of the relationship between the linear speed of the conveying mechanism and the linear speed of the solar cell production line.

Explanation of reference signs:

1-conveying motor; 2-synchronous belt; 3-suction pipe; 4-cylinder; 5-bellows; 6-valve island; 7-fixed base; -conveyor belt; 12-briquetting block; 13-synchronous belt guard; 14-cover; 15-frame.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

As shown in FIG. 1 , it is a schematic structural diagram of an embodiment of a continuous adsorption system for solar cells of the present invention. The continuous adsorption system for solar cells of this embodiment includes a frame 15, on which a bellows 5 is installed, on which the bellows 5 is provided with a suction pipe 3, and the bottom surface 10 of the bellows 5 is provided at intervals along its length for adsorption. For the adsorption hole groups of the solar battery sheet, the distance between two adjacent groups of adsorption hole groups is less than or equal to half of the width of the solar battery sheet 9 in the length direction of the bellows 5 . In this embodiment, the distance between two adjacent groups of adsorption holes is slightly smaller than 1/4 of the width of the solar cells 9 in the length direction of the bellows 5 , that is, one solar cell corresponds to 4 to 5 groups of adsorption holes. The frame 15 of this embodiment is also provided with a conveying mechanism for conveying the solar cells 9 adsorbed on the bottom surface of the bellows 5 to a designated position. The bellows 5 is provided with an adsorption switch corresponding to each group of adsorption holes, and the adsorption switch synchronously controls the opening and closing of all the adsorption holes of the corresponding adsorption hole group.

Specifically, the conveying mechanism of this embodiment includes a conveying motor 1 fixedly installed on the frame 15 and a transmission pulley arranged at both ends of the bellows 5, and a conveying belt 11 is set between the two conveying pulleys, and the conveying motor 1 and the A driving connection between the pulleys. Specifically, the output shaft of the conveying motor 1 is provided with a driving synchronous pulley, and one end of the driving pulley connected to the transmission motor 1 is provided with a driven synchronous pulley corresponding to the driving synchronous pulley. There is a synchronous conveyor belt 2 between them. The conveyor belts 11 of this embodiment are arranged in multiples at intervals along the width direction of the bottom surface of the bellows 5 , and an adsorption gap is provided between two adjacent conveyor belts 11 . Correspondingly, each group of adsorption holes includes at least one adsorption hole corresponding to the adsorption gap. There are four conveyor belts 11 in this embodiment, and each group of adsorption holes includes four adsorption holes corresponding to the adsorption gaps. The conveying motor 1 of the present embodiment adopts a stepper motor, and the conveying belt 11 adopts a round belt.

Further, the adsorption switch of this embodiment includes a cylinder 4 fixedly installed on the bellows 5, the piston rod of the cylinder 4 extends into the bellows 5, and the piston rod of the cylinder 4 is provided with a corresponding adsorption hole for opening and closing. Set of compacts 12 for all adsorption holes. The frame 15 is equipped with a valve island 6 for independently controlling the piston rod of each cylinder 4 to extend outward or shrink inward, and the valve island 6 is provided with a relay corresponding to each cylinder 4 . When the cylinder 4 protrudes downward, the pressing block 12 presses on all the adsorption holes of the corresponding adsorption hole group, so that all the adsorption holes of the corresponding adsorption hole group are closed. When the cylinder 4 shrinks upward, the pressure block 12 leaves all the adsorption holes of the corresponding adsorption hole group, so that all the adsorption holes of the corresponding adsorption hole group are opened.

Of course, in order to improve the safety of the equipment, the two sides of the bellows 5 of the present embodiment are respectively provided with side plates 8, and the frame 15 is also provided with a cover located outside the conveyor belt, two transmission pulleys, and all cylinders 4 and valve islands 6. The synchronous belt shield 12, the conveyor motor 1 and the synchronous conveyor belt 2 outer cover are provided with a casing 14, the two ends of the frame 15 are provided with a support frame, and the bottom of the support frame is provided with a fixed base.

In this embodiment, the solar cell continuous adsorption method using the above-mentioned solar cell continuous adsorption system is as follows: when the solar cell to be adsorbed moves to the right below the bellows 5, at least two groups of adsorption cells located directly above the solar cell are controlled. The hole group is opened, and the solar cell is adsorbed on the bottom surface of the wind box 5. In this embodiment, when the solar cell to be adsorbed moves to the bottom of the wind box 5, at least 5 groups of adsorption holes located directly above the solar cell are controlled. Open it, and attach the solar cells to the bottom surface of the bellows 5 . Simultaneously start the conveying mechanism, and during the process of conveying the solar battery sheet to the designated position by the conveying mechanism, when the solar battery sheet 9 is conveyed directly below a certain adsorption hole group, the adsorption switch corresponding to the adsorption hole group controls the All adsorption holes of the adsorption hole group are opened. When the solar cell leaves a certain adsorption hole group, the adsorption switch corresponding to the adsorption hole group controls all the adsorption holes in the adsorption hole group to close. After the solar battery sheet is transported to a designated position, all the adsorption hole groups directly above the solar battery sheet are controlled to be closed. In addition, in order to prevent the solar cells from being skewed due to inertia, after the solar cells are transported to the designated position, all the adsorption hole groups located directly above the solar cells can be controlled to be closed after a delay of 100ms.

Further, as shown in Figure 6, the linear speed of the conveying mechanism and the linear speed of the solar cell production line satisfy:

a/v ₁ < b/v ₂

Wherein, a is the width of the solar cells on the length direction of the bottom surface of the bellows;

v ₁ is the linear speed of the conveying mechanism;

b is the distance between the same ends of two adjacent solar cells on the solar cell production line;

v ₂ is the line speed of the solar cell production line.

In this way, it can be realized that when there are more than two solar cells that need to be adsorbed in a row, when the next solar cell is transported directly under the bellows by the solar cell production line, the previous solar cell that has been adsorbed has been transported away from the solar energy. Right above the cell production line, the solar cell continuous adsorption system of this embodiment can be used to continue to adsorb solar cells to achieve continuous adsorption without stopping and waiting.

In the continuous adsorption system for solar cells of this embodiment, the negative pressure of the bellows can be used to adsorb the solar cells on its bottom surface, and the solar cells can be transported to the set position by the transport mechanism; since the adsorption hole group is along the length direction of the bellows Interval setting, after the current solar cell is transported away, the adsorption hole group located directly above the solar cell production line is exposed. If there are solar cells to be adsorbed at this time, these adsorption hole groups can be activated immediately to continue to absorb solar cells. It can meet the requirements of continuous adsorption, that is to say, it overcomes the problem that the existing adsorption equipment needs to wait for the suction cup to return, can realize continuous and uninterrupted production, and can effectively avoid the waiting of the solar cell production line, which can effectively improve production efficiency and avoid solar energy. The mechanical loss caused by the downtime of the cell production line.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.

Claims (10)

1. A continuous adsorption system for solar cells, characterized in that: it includes a frame, on which a bellows (5) is installed, and a suction pipe (3) is arranged on the bellows (5), the The bottom surface of the bellows (5) is provided with adsorption hole groups at intervals along its length direction for absorbing solar cells, and the distance between two adjacent groups of the adsorption holes is less than or equal to the distance between the solar cells in the bellows (5) half of the width in the length direction; the frame is also provided with a transport mechanism for transporting the solar cells adsorbed on the bottom surface of the bellows to a designated position; The bellows is provided with an adsorption switch corresponding to each group of the adsorption hole groups, and the adsorption switch synchronously controls the opening and closing of all the adsorption holes of the corresponding adsorption hole group. 2. The continuous adsorption system for solar cells according to claim 1, characterized in that: the conveying mechanism includes a conveying motor (1) fixedly installed on the frame and two ends of the bellows (5) A transmission pulley, a conveying belt (11) is sleeved between the two conveying pulleys, and the conveying motor (1) is in transmission connection with one of the conveying pulleys. 3. The solar cell continuous adsorption system according to claim 2, characterized in that: the output shaft of the conveying motor (1) is provided with an active synchronous pulley, and one end of the drive pulley connected to it is connected to the The driving synchronous pulley is correspondingly provided with a driven synchronous pulley, and a synchronous transmission belt is provided between the driving synchronous pulley and the driven synchronous pulley. 4. The continuous adsorption system for solar cells according to claim 2, characterized in that: the conveying belts are arranged at intervals along the width direction of the bottom surface of the bellows (5), and there are two adjacent conveying belts There is an adsorption gap between them. 5 . The continuous adsorption system for solar cells according to claim 4 , wherein each group of the adsorption holes includes at least one adsorption hole corresponding to the adsorption gap. 6. The continuous adsorption system for solar cells according to any one of claims 1-4, wherein each group of the adsorption hole groups includes at least one adsorption hole. 7. The solar cell continuous adsorption system according to claim 6, characterized in that: the adsorption switch includes a cylinder (4) fixedly installed on the bellows (5), and the piston rod of the cylinder (4) Extending into the air box (5), and the piston rod of the cylinder (4) is equipped with a pressing block (12) for opening and closing all the adsorption holes of the corresponding adsorption hole group. 8. The continuous adsorption system for solar cells according to claim 7, characterized in that: the frame is equipped with a piston rod for independently controlling each of the cylinders (4) to extend outwards or retract inwards valve island (6). 9. A continuous adsorption method for solar cells using the solar cell continuous adsorption system according to any one of claims 1-8, characterized in that: when the solar cells to be adsorbed move to the front of the bellows (5), When it is down, at least two groups of adsorption hole groups located directly above the solar cell are controlled to open, and the solar cell is adsorbed on the bottom surface of the bellows (5); at the same time, the conveying mechanism is started, and the conveying mechanism During the process of transporting the solar battery sheet to a designated position, when the solar battery sheet is transported directly below a certain adsorption hole group, the adsorption switch corresponding to the adsorption hole group controls the adsorption hole All the adsorption holes of the group are opened; when the solar cell leaves a certain group of adsorption holes, the adsorption switch corresponding to the group of adsorption holes controls all the adsorption holes of the group of adsorption holes Close; when the solar cell is transported to the designated position, all the adsorption hole groups located directly above the solar cell are controlled to be closed. 10. The method for continuously absorbing solar cells according to claim 9, characterized in that: the linear speed of the conveying mechanism and the linear speed of the solar cell production line meet: a/v ₁ < b/v ₂ Wherein, a is the width of the solar cells in the length direction of the bottom surface of the bellows; v ₁ is the linear velocity of the conveying mechanism; b is the distance between the same ends of two adjacent solar cells on the solar cell production line; v ₂ is the line speed of the solar cell production line.