CN214454211U - Transfer device - Google Patents

Abstract

The application discloses transfer device includes: a transport mechanism for transporting the string unit; the receiving mechanism is arranged at the downstream of the conveying mechanism and used for receiving the string units; a holding mechanism for fixing the string unit; the holding mechanism comprises a holding piece and a transfer driving assembly, wherein the holding piece can be abutted against all the battery pieces in the string unit and the fixed string unit, so that the stable configuration of the string unit in the transmission process is ensured, and the string unit is prevented from deforming; the transfer drive assembly is capable of extracting the holders from the uptake mechanism and transferring the holders to the transport mechanism for recycling of the holders.

Description

Transfer device

Technical Field

The application relates to the technical field of photovoltaic cell manufacturing devices, in particular to a transfer device.

Background

After the string units are constructed by the welding strips and the battery pieces, the string units need to be welded, and then the welding strips and the battery pieces which are connected are fixed. Before welding, the connected welding strips and the battery pieces are easy to relatively displace, so that the structure of the string is damaged.

In the traditional equipment, the pressing net is adopted for fixing the welding strip and the battery piece, but one pressing net presses one battery piece, only the current pressed battery piece and the welding strip connected with the current pressed battery piece can be fixed, and the relative positions of the battery pieces in the whole string unit cannot be fixed.

Disclosure of Invention

The application provides a transfer device to solve the technical problem that string unit is yielding in transmission process among the prior art.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a transfer device including: a transport mechanism for transporting the string unit; the receiving mechanism is arranged at the downstream of the conveying mechanism and used for receiving the string units conveyed by the conveying mechanism; a retention mechanism comprising: a holder for fixing the string unit; a transfer drive assembly capable of extracting the holder from the receiving mechanism and transferring the holder to the transfer mechanism; the string unit comprises at least two battery pieces, and any two adjacent battery pieces are connected through a group of welding strips; the holder can fix the string unit in the conveying mechanism, thereby preventing the string unit from deforming during conveying; after the holding piece enters the bearing mechanism along with the string unit, the transfer driving assembly drives the holding piece to be separated from the string unit and return to the conveying mechanism.

Further, at least two first holding portions are provided on the holder; when the holding piece is used for fixing the string units, one first holding part can fix one battery piece, and the holding piece can fix all the battery pieces in one string unit, so that the relative position change of the battery pieces and the battery pieces is avoided.

Further, a negative pressing piece is arranged on the first holding part; when the holding piece fixes the string unit, the working end of the negative pressing piece contacts the battery piece, and then the battery piece is fixed through adsorption.

Further, the retention mechanism further includes a connection assembly, the connection assembly including: a first connecting member provided on the holder; the second connecting piece is arranged on the transfer driving assembly; when the transfer driving assembly extracts the holding piece, the transfer driving assembly drives the second connecting piece to move towards the first connecting piece; the second connecting piece is connected with the first connecting piece after contacting, so that the transfer driving assembly drives the second connecting piece and drives the first connecting piece and the retaining piece to move.

Furthermore, an electromagnet is arranged on one of the first connecting piece and the second connecting piece, and the electromagnet can generate magnetism after being electrified; a metal part is arranged on the other one of the first connecting piece and the second connecting piece; after the power is on, the electromagnet can attract the metal part, so that the first connecting piece is connected with the second connecting piece.

Further, the transfer drive assembly includes: the vertical driving assembly is connected with the first connecting piece and can drive the first connecting piece to move along the vertical direction; the horizontal driving assembly is connected with the first connecting piece and can drive the first connecting piece to reciprocate between the conveying mechanism and the bearing mechanism; the first connecting piece is arranged at the movable end of the vertical driving assembly, and the vertical driving assembly is arranged at the movable end of the horizontal driving assembly; or the first connecting piece is arranged at the movable end of the horizontal driving assembly, and the horizontal driving assembly is arranged at the movable end of the vertical driving assembly.

Further, the retention mechanism further includes a positioning assembly, the positioning assembly including: a first positioning member provided on the holder; the second positioning piece is arranged on the transfer driving assembly; when the transfer driving assembly extracts the holding piece, the first positioning piece is connected with the second positioning piece, so that the transfer driving assembly can accurately extract and transfer the holding piece.

Further, the conveying mechanism comprises a first conveyor belt assembly; the uptake mechanism comprises a second conveyor belt assembly; the discharge end of the first conveyor belt assembly is opposite to the feed end of the second conveyor belt assembly, and the stringing unit is input into the second conveyor belt assembly through the first conveyor belt assembly; there is the clearance between the discharge end of first conveyer belt subassembly and the feed end of second conveyer belt subassembly, through the fixed string unit of holding mechanism, can avoid string unit to receive the clearance influence to warp.

Furthermore, the transfer device also comprises a net pressing and feeding assembly which is arranged on one side of the conveying mechanism and used for supplying net pressing to the string unit; before the string unit is fixed by the holding piece, the net pressing feeding assembly conveys net pressing to the string unit, and any net pressing can fix a battery piece and a welding strip connected with the battery piece; the holder can avoid the net pressing and act on all the battery pieces, and further fix the string units.

Further, a second holding part is arranged on the holding piece; when the retainer fixes the string unit, the second retainer can fix the net pressing on the string unit; the holder can fix the string unit and press the net against the string unit.

The application provides a transfer device, includes: a transport mechanism for transporting the string unit; the receiving mechanism is arranged at the downstream of the conveying mechanism and used for receiving the string units; a holding mechanism for fixing the string unit; the holding mechanism comprises a holding piece and a transfer driving assembly, wherein the holding piece can be abutted against all the battery pieces in the string unit and the fixed string unit, so that the stable configuration of the string unit in the transmission process is ensured, and the string unit is prevented from deforming; the transfer drive assembly is capable of extracting the holders from the uptake mechanism and transferring the holders to the transport mechanism for recycling of the holders.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic top view of a battery string;

fig. 2 is a schematic front view of the battery string of fig. 1;

FIG. 3 is a schematic diagram of a top view of a string unit;

FIG. 4 is a schematic diagram of a front view of the string unit of FIG. 3;

fig. 5 is a schematic diagram of a string unit constructing a battery string;

fig. 6 is a schematic diagram of another state in which the string unit constructs the battery string in fig. 5;

FIG. 7 is a schematic structural diagram of a transfer device provided herein;

FIG. 8 is a front view of the retaining mechanism of FIG. 7;

FIG. 9 is a schematic top view of the retaining mechanism of FIG. 8;

FIG. 10 is a side view of the retaining mechanism of FIG. 8;

FIG. 11 is a schematic top view of the retainer of FIG. 8;

FIG. 12 is a schematic view of the structure of the retainer pressing string unit and the pressing net;

figure 13 is a schematic structural view of a lamination assembly provided by the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

First, referring to fig. 1 and 2, a structure of a photovoltaic cell string 10' is illustrated. Referring to the drawings, a battery string 10 ' includes a plurality of battery pieces 11 ', and an upper surface of any one of the battery pieces 11 ' is connected to one set of solder strips 12 ' and a lower surface thereof is connected to the other set of solder strips 12 '. Meanwhile, in the battery string 10 ', any two adjacent battery pieces 11' are connected by a set of solder strips 12 ', one end of the set of solder strips 12' is connected to the upper surface of one battery piece 11 ', and the other end is connected to the lower surface of the other battery piece 11'.

The string unit 10 is similarly constructed to a battery string, and is also composed of a plurality of battery cells 11 and a plurality of sets of solder ribbons 12. In some embodiments, the string unit 10 includes a sufficient number of battery cells 11 and solder strips 12, which can directly constitute a battery string. In other embodiments, the string unit 10 includes a small number of battery cells 11 and/or solder strips 12, which can form a part of the battery string; in this case, a plurality of string units 10 are connected to form a battery string.

For example, a battery string includes twelve battery cells and thirteen sets of solder strips. Referring to fig. 3 and 4, one string unit 10 includes four battery pieces 11 and four sets of solder strips 12, the upper surface of any one battery piece 11 is connected to one set of solder strips 12, the lower surface of the battery piece 11 at one end of the string unit 10 is empty, and one end of the solder strip 12 at the other end of the string unit 10 is empty; continuing to refer to fig. 5, so that the two string units 10a and 10b are connected, the battery plate 11 at the end of the string unit 10b is connected with the solder strip 12 at the end of the string unit 10a, and a string unit with eight battery plates 11 and eight sets of solder strips 12 is obtained; with continued reference to fig. 6, another string unit 10c is connected to the string units 10a and 10b to obtain a string unit having twelve battery cells 11 and twelve sets of solder ribbons 12, and a set of solder ribbons 12 is connected to the lower surfaces of the battery cells 11 at the ends of the string unit to form a battery string.

In summary, the string unit 10 includes at least two battery pieces 11, and any two adjacent battery pieces 11 in one string unit 10 are connected by a set of solder strips 12.

Before the string unit 10 is not welded, the connected battery piece 11 and welding strip 12 are loose in structure, and during transmission, the battery piece 11 and/or the battery piece 11 and the welding strip 12 are displaced relatively, so that the string unit 10 is deformed, and the construction of a subsequent battery string is influenced.

To this end, with reference to fig. 7, the present application provides a transfer device comprising: a transport mechanism 200 for transporting the string unit 10; the receiving mechanism 300 is arranged at the downstream of the conveying mechanism 200 and is used for receiving the string unit 10 conveyed by the conveying mechanism 200; the holding mechanism 100 includes: a holder 110 for fixing the string unit 10; a transfer drive unit 120 capable of extracting the holder 110 from the receiving mechanism 300 and transferring the holder 110 to the transfer mechanism 200; the holder 110 can fix the string unit 10 on the conveying mechanism 200, preventing the string unit 10 from being deformed during conveyance; after the holding member 110 is conveyed by the conveying mechanism 200 along with the string unit 10 and enters the receiving mechanism 300, the transfer driving assembly 120 drives the holding member 110 to be separated from the string unit 10 and return to the conveying mechanism 200.

The conveying mechanism 200 may be a mechanism capable of supporting and conveying the string unit 10, such as a conveyor belt, a conveying roller, a conveying platform, and a crown block. When the string unit 10 is transported and moved downstream by the transport mechanism 200, the connected battery cells 11 and the solder ribbons 12 may be relatively displaced by an external force such as friction, and the string structure may be damaged.

By providing the holding mechanism 100 such that the holder 110 acts on the string unit 10, fixes the battery pieces 11 and/or the solder ribbons 12 in the string unit 10, it is possible to avoid deformation of the string unit 10 during movement.

The receiving mechanism 300 includes at least a platform capable of holding the string unit 10. Near the receiving mechanism 300, a processing device for processing the string unit 10, for example, a welding device (not shown) may be provided. After the string unit 10 enters the uptake mechanism 300, the transfer drive assembly 120 extracts the holder 110 so that the holder 110 is detached from the string unit 10, so that the processing apparatus works on the string unit 10. At the same time, the transfer drive assembly 120 drives the holder 110 back to the transport mechanism 200 so that the holder 110 fixes the next string unit 10.

Due to the interval between the output end of the conveying mechanism 200 and the input end of the receiving mechanism 300 or the height difference, when the string unit 10 is input into the receiving mechanism 300 from the conveying mechanism 200, the gap between the output end and the input end and the difference between the conveying speed of the conveying mechanism 200 and the receiving speed of the receiving mechanism 300 affect the stable conveying of the string unit 10, so that the battery piece 11 and the battery piece 11, and the battery piece 11 and the solder strip 122 are relatively displaced. By providing the holding mechanism 100 to fix the string unit 10, it is possible to ensure that the structure of the string is kept stable when the string unit 10 is transferred between two different mechanisms.

In summary, the holder 110 can fix the string unit 10 and maintain the configuration of the string unit 10 during the transportation of the string unit 10 by the transport mechanism 200; meanwhile, the holder 110 can also fix the string unit 10, holding the configuration of the string unit 10 during the course of the string unit 10 being input into the receiving mechanism 300; thereby preventing the string unit 10 from being deformed by an external force during the movement and transfer.

The holder 110 can act on at least each of the battery cells 11 when fixing the string unit 10, and can hold the relative positions of the battery cells 11, thereby stabilizing the configuration of the string unit 10.

For this, referring to fig. 8 to 11, the holder 110 is provided with at least two first holding portions 111; when the holder 110 fixes the string unit 10, one first holding portion 111 can fix one battery piece 11. Thus, the holder 110 can fix all the battery pieces 11 in the string unit 10, thereby avoiding a change in the relative positions of the battery pieces 11 and the battery pieces 11.

For example, the string unit 10 includes four battery pieces 11, and the four battery pieces 11 are sequentially arranged in the conveying direction L of the conveying mechanism 200. Correspondingly, the holder 110 includes four first holding portions 111; when the holder 110 fixes the string unit 10, the first holding portions 111 correspond one-to-one to the battery pieces 11. Since the relative position of each first holding portion 111 in the holder 110 is fixed, the relative position of each cell 11 can be defined after the cell 11 is fixed by the first holding portion 111. When the string unit 10 moves or transfers, each battery piece 11 is subjected to the action of the holder 110, and the configuration of the string unit 10 can be maintained.

In one embodiment, the surface of the first holding portion 111 facing the battery piece 11 may be provided with a bump. When the holder 110 fixes the string unit 10, the bumps contact the battery pieces 11 and can press the battery pieces 11 against the conveying mechanism 200. Furthermore, the bump can be made of flexible materials (such as rubber and plastic), on one hand, the surface of the flexible material is rough, the friction coefficient is large, and the flexible material can better press the battery piece 11 and move downstream along with the battery piece 11; on the other hand, the flexible material has a certain elasticity, and when the bump is pressed against the battery piece 11, the bump can deform, so that the holder 110 is prevented from rigidly impacting the battery piece 11, meanwhile, the deformed bump also has a tendency of recovering to the original shape, and the generated reverse acting force can further enable the bump to press the battery piece 11.

In another embodiment, the first holding portion 111 is provided with a negative pressure member 112; when the holder 110 presses the string unit 10, the working end of the negative pressure member 112 contacts the battery piece 11, thereby fixing the battery piece 11 by adsorption.

The negative pressure member 112 may be a suction cup or a suction nozzle, and is communicated with an external negative pressure device (not shown). When the string unit 10 is fixed by the holding member 110, the negative pressure device works on the negative pressure member 112, so that the inside of the negative pressure member 112 is vacuumized, the working end of the negative pressure member 112 generates suction, and as the negative pressure member 112 continuously approaches to contact the battery piece 11, the negative pressure member 112 adsorbs the battery piece 11, so that the holding member 110 stably presses against the string unit 10, and the configuration of the string unit 10 is maintained. Alternatively, the negative pressure member 112 may be an air hole formed in the first holding portion 111, and the air hole communicates with an external negative pressure device to generate a negative pressure and thereby attract the battery cell 11.

As can be seen from the above, after the string unit 10 is fixed by the holder 110, the string unit 10 is held in a state of being pressed against the holder, and moves downstream together with the string unit 10.

In one embodiment, the retaining member 110 is disposed at a free end of the transfer drive assembly 120. After the string unit 10 is received by the transferring mechanism 200, the transferring driving component 120 drives the holding member 110 to approach to the pressing string unit 10. When the conveying mechanism 200 conveys the string unit 10, the transfer driving assembly 120 drives the holding member 110 to synchronously move along with the conveying mechanism 200, the holding member 110 is always pressed against the string unit 10, and the positions of the holding member 110 and the string unit 10 are relatively fixed.

In another embodiment, holder 110 and transfer drive assembly 120 are removably coupled. After the holding member 110 presses against the string unit 10, the transfer driving assembly 120 is disengaged from the holding member 110, the holding member 110 is fixed on the string unit 10, and the conveying mechanism 200 conveys the string unit 10 and the holding member 110 at the same time; the unit 10 to be strung enters the receiving mechanism 300, and the transfer driving assembly 120 approaches to the receiving holder 110 and drives the holder 110 back to the conveying mechanism 200, so as to facilitate the recycling of the holder 110.

To this end, the retaining mechanism 100 further includes a connecting assembly 130, the connecting assembly 130 including: a first connecting member 131 provided on the holder 110; a second link 132 disposed on the transfer drive assembly 120; when the transfer driving unit 120 takes out the holder 110, the transfer driving unit 120 drives the second link 132 to move toward the first link 131; the second connecting member 132 is connected to the first connecting member 131 after contacting, and the transfer driving assembly 120 drives the second connecting member 132 to drive the first connecting member 131 and the retaining member 110 to synchronously move.

The first connecting member 131 is connected to the second connecting member 132, and the transfer driving assembly 120 can drive the holding member 110 to leave the string unit 10 and return from the receiving mechanism 300 to the conveying mechanism 200; when a new string unit 10 arrives at the conveying mechanism 200, the transfer driving assembly 120 drives the holding member 110 to be close to the conveying mechanism 200 and presses the string unit 10 against the conveying mechanism 200; subsequently, the first link 131 is separated from the second link 132, and the holder 110 is disengaged from the transfer drive assembly 120, independently pressed against the string unit 10, and moved downstream together with the string unit 10 under the conveyance of the conveyance mechanism 200.

The first connecting member 131 and the second connecting member 132 may adopt a snap structure; for example, one of the first and second connecting members 131 and 132 has a concave portion and the other has a convex portion, and when they are in contact with each other, the convex portion extends into the concave portion and engages with the concave portion, so that the connection between the holder 110 and the transfer drive assembly 120 is achieved; after the holder 110 fixes the string unit 10, the convex portion is separated from the concave portion, and the holder 110 and the transfer drive unit 120 are disengaged.

Alternatively, one of the first and second connectors 131 and 132 may adopt a structure capable of extracting the other, such as a jig or a suction cup.

Or, an electromagnet is arranged on one of the first connecting piece 131 and the second connecting piece 132, and the electromagnet can generate magnetism after being electrified; a metal part is provided on the other of the first and second connection members 131 and 132; when energized, the electromagnet can attract the metal part, thereby connecting the first connecting member 131 with the second connecting member 132. Thus, after the string unit 10 reaches the receiving mechanism 300, the transferring driving assembly 120 drives the second connecting member 132 to be close to the holding member 110, and meanwhile, the electromagnet is powered on and obtains magnetism, and the electromagnet can adsorb a metal part, so that the first connecting member 131 and the second connecting member 132 are connected, and the transferring driving assembly 120 is connected with the holding member 110 and then drives the holding member 110 to move. After the holding member 110 presses against the string unit 10, the electromagnet is powered off and loses magnetism, the first connecting member 131 and the second connecting member 132 are separated, and the holding member 110 is separated from the transfer driving assembly 120. By turning on and off the electromagnet, the connection and separation of the first and second connection members 131 and 132 can be quickly achieved.

In summary, by providing the holder 110 detachably connected to the transfer driving unit 120, after the holder 110 presses the string unit 10, the holder 110 is separated from the transfer driving unit 120, and can independently press the string unit 10, and passively move downstream along with the string unit 10 under the conveying of the conveying mechanism 200 under the influence of the friction force between the holder 110 and the transfer driving unit 120. When the holder 110 is moved passively following the string unit 10, the relative positions of the holder 110 and the string unit 10 are more stable than when the holder 110 is driven actively following the string unit 10 by the transfer drive assembly 120. In addition, the moving speed of the transfer driving assembly 120 is no longer influenced by the transmission speed of the conveying mechanism 200; for example, when the transport mechanism 200 transports the string unit 10 and the retaining member 110, the transfer driving assembly 120 may drive the second connecting member 132 to the receiving mechanism 300, wait for the retaining member 110 to reach the receiving mechanism 300, connect the retaining member 110, and drive the retaining member 110 to return to the transport mechanism 200.

The transfer drive assembly 120 includes: the vertical driving assembly 121 is connected with the first connecting piece 131 and can drive the first connecting piece 131 to move along the vertical direction; and a horizontal driving assembly 122 connected to the first connecting member 131 and capable of driving the first connecting member 131 to reciprocate between the transferring mechanism 200 and the receiving mechanism 300.

The vertical driving assembly 121 and the horizontal driving assembly 122 may adopt driving mechanisms such as an electric cylinder and a linear module.

When holder 110 is disposed on transfer drive assembly 120, holder 110 may be disposed at a free end of vertical drive assembly 121 while vertical drive assembly 121 is disposed at a free end of horizontal drive assembly 122. When the string unit 10 is pressed, the horizontal driving assembly 122 drives the vertical driving assembly 121 and the holding member 110 to reach the conveying mechanism 200, and the holding member 110 is opposite to the string unit 10 on the conveying mechanism 200; subsequently, the vertical driving assembly 121 drives the holder 110 to press down the string unit 10. When the stringing unit 10 moves downstream, the horizontal driving assembly 122 drives the vertical driving assembly 121 and the holding member 110 to move along the conveying direction L, and the holding member 110 is relatively and fixedly pressed against the stringing unit 10. Upon reaching the uptake mechanism 300, the vertical driving assembly 121 drives the holder 110 to ascend and leave the string unit 10, and the horizontal driving assembly 122 further drives the vertical driving assembly 121 and the holder 110 to return to the transfer mechanism 200.

Alternatively, the holder 110 may be disposed at the free end of the horizontal drive assembly 122, and the horizontal drive assembly 122 disposed at the free end of the vertical drive assembly 121. Details are not repeated.

When the retention mechanism 100 further includes a connecting assembly 130, the first connector 131 may be disposed at the free end of the vertical drive assembly 121, while the vertical drive assembly 121 is disposed at the free end of the horizontal drive assembly 122. When the string unit 10 is pressed, the first connecting piece 131 is connected with the second connecting piece 132, the horizontal driving assembly 122 drives the vertical driving assembly 121, the connecting assembly 130 and the holding piece 110 to reach the conveying mechanism 200, and the holding piece 110 is enabled to face the string unit 10 on the conveying mechanism 200; then, the vertical driving assembly 121 drives the connecting assembly 130 and the holder 110 to descend, and after the holder 110 presses against the string unit 10, the first connecting member 131 is separated from the second connecting member 132; the holder 110 is fixed to the string unit 10 and moves downstream with the string unit 10; the horizontal driving assembly 122 drives the vertical driving assembly 121 and the second connecting member 132 to the receiving mechanism 300; after the holder 110 and the first connecting member 131 reach the receiving mechanism 300, the first connecting member 131 is connected to the second connecting member 132, the vertical driving assembly 121 drives the holder 110 to ascend and leave the string unit 10, and the horizontal driving assembly 122 further drives the vertical driving assembly 121 and the holder 110 to return to the conveying mechanism 200.

Alternatively, the first connector 131 may be disposed at the free end of the horizontal drive assembly 122, and the horizontal drive assembly 122 is disposed at the free end of the vertical drive assembly 121. Details are not repeated.

When the retaining mechanism 100 is detachably connected to the retaining member 110 and the transfer drive assembly 120 through the connecting assembly 130, if the position of the transfer drive assembly 120 for extracting the retaining member 110 changes, the recycling of the retaining member 110 may be affected. For example, when the holder 110 is provided with a plurality of first connectors 131, and the transfer driving assembly 120 is provided with a plurality of second connectors 132, the first connectors 131 can be connected to different second connectors 132, and similarly, the second connectors 132 can also be connected to different first connectors 131, at this time, the positions of the transfer driving assembly 120 connected to the holder 110 are changed, and after the transfer driving assembly 120 drives the holder 110 to return to the conveying mechanism 200 along the same moving path, the holder 110 can be located at different positions, which finally affects the fixation of the string unit 10.

To this end, the retention mechanism 100 further includes a positioning assembly 140, the positioning assembly 140 including: a first positioning member 141 provided on the holder 110; a second positioning member 142 disposed on the transfer driving assembly 120; when the transfer driving unit 120 picks up the holder 110, the first positioning member 141 is connected to the second positioning member 142, so that the transfer driving unit 120 can pick up and transfer the holder 110 accurately.

One of the first positioning member 141 and the second positioning member 142 may be a positioning pin, and the other may be a positioning hole, so that when the transfer driving assembly 120 accurately extracts the holder 110, the positioning pin can be inserted into the positioning hole, thereby defining the connection state of the holder 110 and the transfer driving assembly 120.

Or, at least one of the first positioning element 141 and the second positioning element 142 is made of a magnet and can attract the other one, when the transfer driving assembly 120 extracts the holding element 110, the second positioning element 142 is close to the holding element 110, and the first positioning element 141 and the second positioning element 142 attract each other, so that the position of the second connecting element 132 can be adjusted, and the second connecting element 132 is connected with the corresponding first connecting element 131.

Or, the upper surface of the first positioning element 141 is recessed to form a horn groove with a gradually reduced caliber, and the lower surface of the second positioning element 142 protrudes to form a conical protrusion; meanwhile, one of the first positioning element 141 and the second positioning element 142 is magnetic, and the other can be magnetically attracted. Thus, when the transfer driving assembly 120 drives the second connecting element 132 to approach the first connecting element 131, the first positioning element 141 and the second positioning element 142 attract each other first; the first positioning element 141 and the second positioning element 142 are contacted with each other, and the conical projection on the lower surface of the second positioning element 142 can be inserted into the horn slot on the upper surface of the first positioning element 141; the first positioning element 141 and the second positioning element 142 are magnetically connected, and the connecting positions of the first positioning element 141 and the second positioning element 142 can be defined by the horn grooves and the conical protrusions, so that the holder 110 and the transfer driving assembly 120 can be accurately connected in a preset state.

To facilitate transporting the string unit 10, in one embodiment, the transport mechanism 200 includes a first conveyor assembly 210, and the first conveyor assembly 210 includes at least one set of conveyors that can receive and transport the string unit 10 downstream. The first conveyor belt assembly 210 further includes a driving wheel, a driven wheel, and a servo motor for driving the driving wheel to rotate; the conveyer belt cover is established on action wheel and follow driving wheel, and servo motor drive action wheel is rotatory, through the conveyer belt transmission, follows the commentaries on classics from the driving wheel, realizes conveyer belt circulation.

At this point, the string unit 10 may be completely constructed in other mechanisms, and the first conveyor assembly 210 receives and conveys the string unit 10 to the uptake mechanism 300.

In another embodiment, the transfer mechanism 200 includes a lamination assembly 220, the lamination assembly 220 including: at least two receiving platforms 221 arranged at intervals along the conveying direction L of the conveying mechanism 200; a first driving assembly 222 for driving the receiving platform 221 to move along the conveying direction L of the conveying mechanism 200; any one of the receiving platforms 221 can receive a battery plate 11 and a set of solder strips 12, the first driving assembly 222 drives the receiving platforms 221 to approach each other, and the battery plates 11 on two adjacent receiving platforms 221 are connected with the solder strips 12 to form a string unit 10.

Referring specifically to fig. 13, in the illustrated embodiment, the lamination assembly 220 includes four receiving platforms 221a, 211b, 211c, 211 d. After the battery piece 11 and the welding strip 12 are fed, the battery piece 11 is placed on the upper surface of the bearing platform 221, one end of the welding strip 12 is connected with the upper surface of the battery piece 11, and the other end of the welding strip 12 protrudes out of the battery piece 11. The receiving platforms 221a and 211b are close to each other, and the lower surface of the battery piece 11 on the receiving platform 211b is connected to the end of the receiving platform 221a from which the solder ribbon 12 protrudes. Similarly, the receiving platforms 211b and 211c are close to each other, the lower surface of the battery plate 11 on the receiving platform 211c is connected … … with the protruding end of the solder strip 12 on the receiving platform 221b, and so on, to form the string unit 10.

In this embodiment, the lamination assembly 220 constructs the string unit 10. After the string unit 10 is formed, the relative positions of the plurality of receiving platforms 221 are kept constant, and the first driving assembly 222 further drives the receiving platforms 221 to move downstream along the conveying direction L, so that the conveying of the string unit 10 can be realized. At this time, after the receiving platforms 221 approach each other and the string unit 10 is constructed, the transfer driving assembly 120 can drive the retaining member 110 to approach to the abutting string unit 10; subsequently, the holder 110 moves downstream with the string unit 10.

The first driving assembly 222 may include a plurality of driving mechanisms, and any receiving platform 221 is connected to one driving mechanism and can move along the conveying direction L under the driving of the driving mechanism. The driving mechanism can adopt driving components such as an electric cylinder, a linear module and the like.

In yet another embodiment, the transfer mechanism 200 includes a first conveyor belt assembly 210 and a lamination assembly 220. At this time, the receiving platform 221 includes at least two receiving parts, and the conveyor belt passes through between the two receiving parts; the lamination assembly 220 further comprises a second driving assembly 223 for driving the receiving platform 221 to move in the vertical direction; the second driving assembly 223 drives the receiving platform 221 to ascend, so that the upper surface of the receiving part for contacting the battery piece 11 is higher than the upper surface of the conveyor belt for contacting the battery piece 11, and the first driving assembly 222 drives the receiving platform 221 to approach each other to realize the construction of the string unit 10; after the string unit 10 is formed, the second driving assembly 223 drives the receiving platform 221 to descend, the string unit 10 falls on the conveyor belt, and the string unit 10 is conveyed downstream by the conveyor belt.

When the string unit 10 is constructed, the second driving component 223 drives the bearing platform 221 to ascend, and the battery piece 11 and the welding strip 12 do not contact the conveyor belt; the first driving assembly 222 drives the receiving platform 221 to approach each other to form a string unit 10; the second driving component 223 drives the receiving platform 221 to descend, so that the string unit 10 falls onto the conveyor belt; the transfer driving assembly 120 drives the holding member 110 to approach the pressing string unit 10; after the string unit 10 is fixed by the holder 110, the servomotor rotates the driving wheel, and the belt rotates to convey the string unit 10 to the receiving mechanism 300.

The second driving assembly 223 includes a plurality of driving mechanisms, and the driving mechanisms may adopt a cylinder, a linear module, and the like. Any receiving platform 221 is connected to a driving mechanism, and can move independently in the vertical direction under the driving of the driving mechanism.

Since the stringing unit 10 includes a plurality of battery pieces 11 having a certain length, in order to facilitate the stringing unit 10 to enter the receiving mechanism 300, in one embodiment, the receiving mechanism 300 includes a second conveyor belt assembly 310; the discharge end of the first conveyor belt assembly 210 faces the feed end of the second conveyor belt assembly 310, and the stringing unit 10 is fed into the second conveyor belt assembly 310 through the first conveyor belt assembly 210; a gap exists between the discharge end of the first conveyor belt assembly 210 and the feed end of the second conveyor belt assembly 310, and the string unit 10 is fixed by the holding mechanism 100, so that the string unit 10 can be prevented from being deformed by the gap.

The second conveyor assembly 310 also includes a conveyor belt, a drive pulley, a driven pulley, and a servo motor. It is contemplated that the discharge ends and the feed ends of the first conveyor belt assembly 210 and the second conveyor belt assembly 310 are provided with drive wheels or driven wheels to facilitate reversing of the conveyor belts and to facilitate the output or input of workpieces on the conveyor belts. Because the conveyor belts have wrap angles on the drive or driven wheels, even if the discharge end of the first conveyor belt assembly 210 is positioned adjacent to the feed end of the second conveyor belt assembly 310, there is still a gap or height difference between the two. Therefore, when the string unit 10 moves away from the discharge end of the first conveyor belt assembly 210 and enters the feed end of the second conveyor belt assembly 310, the battery pieces 11 and the solder strips 12 may be displaced, thereby damaging the structure of the string.

In addition, when the conveying speeds of the first conveyor belt assembly 210 and the second conveyor belt assembly 310 are not completely consistent, the battery pieces 11 and the welding ribbons 12 may be displaced when the string unit 10 moves away from the discharge end of the first conveyor belt assembly 210 and enters the feed end of the second conveyor belt assembly 310.

Before the string unit 10 is output from the first conveyor belt assembly 210, the string unit 10 is fixed by the holding mechanism 100, so that the configuration of the string unit 10 can be ensured to be stable during the transfer process.

Further, the transfer device further includes a net pressing circulation mechanism 400, and the net pressing circulation mechanism 400 includes: a screen pressing and feeding assembly 410 provided at one side of the transfer mechanism 200 for supplying the screen pressing 20 to the stringing unit 10; the net pressing and blanking assembly 420 is arranged on one side of the bearing mechanism 300 and used for removing the net pressing 20 on the string unit 10; the net pressing conveying assembly 430 can receive the net pressing 20 removed by the net pressing discharging assembly 420 and convey the net pressing 20 to the net pressing feeding assembly 410.

After the battery pieces 11 and the welding strips 12 are connected to form the string unit 10, the net pressing and feeding assembly 410 conveys the pressing nets 20 to the string unit 10, and any one of the pressing nets 20 can fix one battery piece 11 and the welding strip 12 connected with the battery piece 11.

At this time, a pressing net 20 is applied to one cell piece 11 and the welding strips 12 connected to the cell piece 11 (including one set of welding strips 12 connected to the upper surface of the cell piece 11 and the other set of welding strips 12 connected to the lower surface of the cell piece 11). Specifically, referring to fig. 12, the press net 20 includes a mounting plate 21, and a plurality of rows of press pins 22 provided on the mounting plate 21; any row of the pressing pins 22 can press one solder strip 12 of a group of solder strips 12 against the battery piece 11. When the pressing net 20 fixes the battery piece 11, the pressing pins 22 press against the portions of the solder strips 12 connected to the upper surface of the battery piece 11, and further press against the battery piece 11 and the two sets of solder strips 12 connected to the battery piece 11, so as to fix the relative positions of the three.

Unlike the pressing net 20, the holding member 110 can at least press all the battery pieces 11 in the string unit 10, thereby fixing the relative positions of the battery pieces 11. The pressing net 20 is matched with the retaining member 110, so that the relative positions of the battery piece 11 and the welding strip 12 and the relative positions of the battery piece 11 and the battery piece 11 can be fixed, and the stable structure of the string unit 10 can be better ensured.

In order to facilitate the holder 110 to fix the string unit 10, the mounting plate 21 is provided with a plurality of through holes 23, and the first holder 111 and/or the negative pressure member 112 can penetrate through the through holes 23 or act on the battery cells 11 from the outside of the mounting plate 21 to fix the string unit 10.

Further, the holder 110 is provided with a second holding portion 113; when the holder 110 fixes the string unit 10, the second holding portion 113 can fix the net 20 on the string unit 10; the holder 110 can fix the string unit 10 and the net pressed against the string unit 10.

The second holding portion 113 has a structure similar to that of the first holding portion 111, and may be configured to press the mounting plate 21 of the net 20 with a bump or absorb the mounting plate 21 of the net 20 with a negative pressure member, so that the holding member 110 is fixed on the stringing unit 10 and moves downstream along with the stringing unit 10. Details are not repeated.

By providing the second holding portion 113, the holding member 110 can be connected to both the battery sheet 11 and the pressing net 20 on the battery sheet 11 when fixing the string unit 10, so that the holding member 110 defines the configuration of the string unit 10 and the relative position of the pressing net and the string unit 10, and further ensures the stable state of the string unit 10 during the transportation and transfer.

Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (10)

1. A transfer device, comprising:

a transport mechanism (200) for transporting the string unit (10);

the receiving mechanism (300) is arranged at the downstream of the conveying mechanism (200) and is used for receiving the string units (10) conveyed by the conveying mechanism (200);

holding mechanism (100) comprising:

a holder (110) for fixing the string unit (10);

a transfer drive assembly (120) capable of extracting the holder (110) from the uptake mechanism (300) and transferring the holder (110) to the transport mechanism (200);

the string unit (10) comprises at least two battery pieces (11), and any two adjacent battery pieces (11) are connected through a group of welding strips (12);

the holder (110) is capable of fixing the string unit (10) in the transfer mechanism (200) so as to prevent the string unit (10) from being deformed during conveyance;

after the holding member (110) enters the bearing mechanism (300) along with the string unit (10), the transfer driving component (120) drives the holding member (110) to be separated from the string unit (10) and return to the conveying mechanism (200).

2. The transfer device according to claim 1, wherein at least two first holding portions (111) are provided on the holder (110);

when the holder (110) fixes the string unit (10), one first holding portion (111) can fix one battery piece (11), and the holder (110) can fix all the battery pieces (11) in one string unit (10), so that the relative position change of the battery pieces (11) and the battery pieces (11) is avoided.

3. The transfer device according to claim 2, wherein a negative pressure member (112) is provided on the first holding portion (111);

when the holding member (110) fixes the string unit (10), the working end of the negative pressure member (112) contacts the battery piece (11), and the battery piece (11) is fixed by adsorption.

4. The transfer device of claim 1, wherein the retention mechanism (100) further comprises a connection assembly (130), the connection assembly (130) comprising:

a first connecting member (131) provided on the holder (110);

a second link (132) disposed on the transfer drive assembly (120);

when the transfer driving assembly (120) extracts the holding piece (110), the transfer driving assembly (120) drives the second connecting piece (132) to move towards the first connecting piece (131);

the second connecting piece (132) is connected with the first connecting piece (131) after contacting, so that the transfer driving assembly (120) drives the second connecting piece (132) and drives the first connecting piece (131) and the holding piece (110) to move.

5. The transfer device according to claim 4, wherein one of the first connector (131) and the second connector (132) is provided with an electromagnet which is capable of generating magnetism when energized;

a metal part is arranged on the other one of the first connecting piece (131) and the second connecting piece (132);

when the power is on, the electromagnet can attract the metal part, so that the first connecting piece (131) is connected with the second connecting piece (132).

6. The transfer device of claim 4, wherein the transfer drive assembly (120) comprises:

the vertical driving assembly (121) is connected with the first connecting piece (131) and can drive the first connecting piece (131) to move along the vertical direction;

the horizontal driving assembly (122) is connected with the first connecting piece (131) and can drive the first connecting piece (131) to reciprocate between the conveying mechanism (200) and the bearing mechanism (300);

the first connecting piece (131) is arranged at the movable end of the vertical driving assembly (121), and the vertical driving assembly (121) is arranged at the movable end of the horizontal driving assembly (122); or the first connecting piece (131) is arranged at the movable end of the horizontal driving assembly (122), and the horizontal driving assembly (122) is arranged at the movable end of the vertical driving assembly (121).

7. The transfer device of claim 4, wherein the retention mechanism (100) further comprises a positioning assembly (140), the positioning assembly (140) comprising:

a first positioning member (141) provided on the holder (110);

a second positioning member (142) disposed on the transfer drive assembly (120);

when the transfer driving assembly (120) extracts the holder (110), the first positioning part (141) is connected with the second positioning part (142), so that the transfer driving assembly (120) can accurately extract and transfer the holder (110).

8. The transfer device according to claim 1, wherein said conveying mechanism (200) comprises a first conveyor belt assembly (210);

the uptake mechanism (300) comprises a second conveyor belt assembly (310);

the discharge end of the first conveyor belt assembly (210) is opposite to the feed end of the second conveyor belt assembly (310), and a stringing unit (10) is input into the second conveyor belt assembly (310) through the first conveyor belt assembly (210);

a gap exists between the discharge end of the first conveyor belt assembly (210) and the feed end of the second conveyor belt assembly (310), and the string unit (10) is fixed through the retaining mechanism (100), so that the string unit (10) can be prevented from being deformed under the influence of the gap.

9. The transfer device according to any of claims 1-8, further comprising a screen press feeding assembly (410) provided at a side of the transfer mechanism (200) for feeding the screen press (20) to the stringing unit (10);

before the retainer (110) fixes the string unit (10), the net pressing and feeding assembly (410) conveys net pressing (20) to the string unit (10), and any net pressing (20) can fix a battery piece (11) and a welding strip (12) connected with the battery piece (11);

the holder (110) can avoid the press net (20) and act on all the battery pieces (11), thereby fixing the string unit (10).

10. The transfer device according to claim 9, wherein a second holding portion (113) is provided on the holder (110);

the second holding part (113) can fix the press net (20) on the string unit (10) when the holder (110) fixes the string unit (10);

the holder (110) is capable of fixing the string unit (10) and a net pressing against the string unit (10).

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