CN117832320A - Solder strip feeding device and solder strip feeding method for producing battery strings - Google Patents

Abstract

The invention discloses a welding strip feeding device for producing battery strings and a welding strip feeding method for producing battery strings. Welding strip loading attachment includes: the welding strip moving mechanism can be arranged in a relative motion along a first direction and is used for moving the welding strip from the welding strip feeding device to the first station and/or the second station along the first direction; the first clamping mechanism is at least partially arranged at the first station and is used for clamping the first end part of the first welding strip; and the second clamping mechanism is arranged at the downstream of the first clamping mechanism and is used for clamping the second end part of the first welding strip. The solder strip feeding method comprises the following steps: s1, a plurality of first welding strips are pulled out by a welding strip moving mechanism, a first end part of the welding strips is moved to a first station, and a second end part of the welding strips is moved to a second station; s2, the first clamping mechanism clamps the first end part, the second clamping mechanism clamps the second end part, and the welding strip moving mechanism is released. The invention not only improves the feeding efficiency of the welding strip, but also can ensure that the welding strip is ready to be placed at the feeding station.

Description

Solder strip feeding device and solder strip feeding method for producing battery strings

Technical Field

The invention relates to the field of solar cell production and manufacturing, in particular to a welding strip feeding device and a welding strip feeding method for producing a cell string.

Background

The solar cell string is a photovoltaic module with a plurality of cell pieces connected in series and/or in parallel, and compared with a single cell piece, the cell string has higher output voltage and power, so that solar energy can be better utilized, and the efficiency and stability of a photovoltaic power generation system are improved. The most common serial battery string is to connect the positive electrodes and the negative electrodes (the front and the back of the battery sheets) of a plurality of battery sheets in sequence through conductive welding belts to form a long battery sheet group. And a plurality of groups of long battery strings can be connected in parallel through welding strips, so that a more efficient multi-parallel battery string assembly is obtained. In the prior art, the device for producing the battery strings at least comprises a production transmission device of the battery strings, and a battery piece feeding device and a welding strip feeding device which are used for feeding in the production transmission mechanism. The relative positions of the production transmission device, the battery piece feeding device and the welding strip feeding device influence the convenience degree of battery piece and welding strip feeding, the complexity of the structure of each device, the occupied area of equipment and the like. Among the common welding strip loading attachment, put the material loading station to production transmission device with cutting many welding strips that prepare batch by batch, the welding strip material loading needs to cooperate with battery piece material loading rhythm, carries out in turn, leads to whole material loading inefficiency, and current welding strip clamping assembly is difficult to ensure the accurate location of many welding strips material loading station department, and the welding strip material loading back is skew easily, is unfavorable for improving the welding precision of follow-up battery piece and welding strip.

Disclosure of Invention

The invention aims at solving the problems in the prior art and provides a welding strip feeding device and a welding strip feeding method for producing battery strings, wherein the welding strip feeding device and the welding strip feeding method are higher in feeding efficiency and accuracy.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the welding strip feeding device is used for moving a welding strip from a welding strip feeding device to a feeding station, the battery string to be produced is conveyed along a horizontal first direction, the welding strip feeding device is arranged at the upstream of the feeding station along the conveying direction of the battery string, the feeding station comprises a first station and a second station, and the first station is positioned at the upstream of the second station; the welding strip to be fed at least comprises a first welding strip, the first welding strip extends along the first direction, the first welding strip is provided with a first end part and a second end part which are respectively arranged at two end parts in the length direction of the first welding strip, the first end part is positioned at the upstream of the second end part, and the welding strip feeding device comprises:

the welding strip moving mechanism is arranged in a manner of being capable of relatively moving along the first direction, and is used for moving the welding strip along the first direction from the welding strip feeding device to the first station and/or the second station;

the first clamping mechanism is arranged at the first station and is used for clamping the first end part of the first welding strip moving to the feeding station;

the second clamping mechanism is arranged at the downstream of the first clamping mechanism along the first direction and is used for clamping the second end part of the first welding strip moving to the feeding station.

In some embodiments, the solder strip moving mechanism is capable of holding the first solder strip from above, the first holding mechanism is capable of holding the first solder strip from below, and the second holding mechanism is capable of holding the first solder strip from above.

In some embodiments, the strap moving mechanism grips the second end of the first strap as the strap moving mechanism moves the first strap.

In some embodiments, the welding strip moving mechanism includes a moving frame, and a plurality of first moving clamping jaws connected with the moving frame, the moving frame can be relatively arranged between the welding strip feeding device and the feeding station along a first direction, the plurality of first moving clamping jaws are sequentially arranged along a second direction, the second direction is a horizontal direction perpendicular to the first direction, and each first moving clamping jaw can clamp or release one first welding strip.

In some embodiments, the solder strip to be fed further comprises a second solder strip extending in the second direction; the welding strip moving mechanism further comprises at least two second moving clamping jaws connected with the moving frame, the at least two second moving clamping jaws are arranged at intervals along the second direction, and the at least two second moving clamping jaws are used for clamping one second welding strip together.

In some embodiments, the first clamping mechanism includes a first bracket, and a plurality of first clamping jaws connected to the first bracket, where the plurality of first clamping jaws are sequentially arranged along a second direction, the second direction is a horizontal direction perpendicular to the first direction, and each first clamping jaw can clamp or release one first welding strip; the second clamping mechanism comprises a second bracket and a plurality of second clamping jaws connected with the second bracket, the second clamping jaws are sequentially arranged along the second direction, and each second clamping jaw can clamp or release one first welding strip; the first clamping jaws and the second clamping jaws are in one-to-one correspondence along the first direction, and the corresponding first clamping jaws and second clamping jaws can clamp two end parts of one first welding strip at the same time.

In some embodiments, the first support is disposed so as to be capable of moving relatively in an up-down direction, and the second support is disposed so as to be capable of moving relatively in an up-down direction, and when the corresponding first clamping jaw and the second clamping jaw clamp one of the first welding strips together, a first end portion of the first welding strip is lower than a second end portion thereof.

In some embodiments, the first support is relatively movably disposed along the first direction, and the second support is relatively movably disposed along the first direction, the second support being always downstream of the first support; the second support is provided with a first working position and a second working position relative to the feeding station, the first working position is located at the upstream of the second working position along the first direction, and the second working position is located at the second station.

A solder strip loading method for producing a battery string, the solder strip loading method being implemented based on the solder strip loading device, the solder strip loading method comprising the steps of:

s1, simultaneously pulling out a plurality of first welding strips from a welding strip feeding device along the first direction by the welding strip moving mechanism, wherein first ends of the plurality of first welding strips are moved to a first station, and second ends of the plurality of first welding strips are moved to a second station;

s2, simultaneously clamping first end parts of a plurality of first welding strips by the first clamping mechanism, simultaneously clamping second end parts of a plurality of first welding strips by the second clamping mechanism, and releasing the plurality of first welding strips by the welding strip moving mechanism;

and repeatedly executing the S1 and the S2.

In some embodiments, in the step S2, after the first clamping mechanism and the second clamping mechanism jointly clamp the plurality of first solder strips, the first clamping mechanism presses down first ends of the plurality of first solder strips simultaneously, and the second clamping mechanism presses down second ends of the plurality of first solder strips simultaneously, and after pressing down, the first ends of each first solder strip are lower than the second ends thereof.

In some embodiments, in the step S1, the solder strip moving mechanism moves at least one second solder strip to the first station, where the second solder strip extends along a second direction, and the second direction is a horizontal direction perpendicular to the first direction, and the second solder strip is located below the plurality of first solder strips.

In some embodiments, the solder strip feeding method further comprises the following steps:

s3, simultaneously pulling out a plurality of first welding strips from the welding strip feeding device along the first direction by the welding strip moving mechanism, wherein the first end parts and the second end parts of the plurality of first welding strips are moved to the first station, and the first end parts are positioned at the upstream of the second end parts;

s4, the second clamping mechanism moves to the first station, and then S2 is executed.

Due to the application of the technical scheme, the welding strip feeding device and the welding strip feeding method for producing the battery strings can directly prepare, stretch and transmit the welding strips to be fed along the required extending direction, the welding strip feeding device does not need to be provided with transfer mechanisms such as translation and rotation, the device is simple in structure and convenient to control, and the feeding transmission distance of the welding strips is short and the feeding is rapid. Further, the welding strip moving mechanism can be connected with the first clamping mechanism and the second clamping mechanism at the feeding station, and the welding strip moving mechanism after connection can return immediately to carry out feeding transmission of the next welding strip; and the first fixture and the second fixture can respectively clamp the two ends of the first welding strip and accurately position the first welding strip, so that the feeding efficiency of the welding strip is improved, the welding strip can be ensured to be ready to be placed at the feeding station, and the welding precision of the battery string is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described.

FIG. 1 is a schematic perspective view of a solder strip loading device and a production and transmission device according to an embodiment of the present invention;

FIG. 2 is a schematic partial perspective view of a solder strip feeding device and a production and transmission device in the present embodiment;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a schematic partial perspective view of another angle between the solder strip feeding device and the production and transmission device in the present embodiment;

FIG. 5 is a schematic side view of the solder strip feeding device and the production and transmission device in this embodiment;

FIG. 6 is an enlarged schematic view of FIG. 5 at B;

fig. 7 is a schematic perspective view of a solder strip moving mechanism and a second clamping mechanism in the present embodiment;

FIG. 8 is a schematic perspective view of another angle between the solder strip moving mechanism and the second clamping mechanism in the present embodiment;

FIG. 9 is a schematic partial front view of the solder strip moving mechanism according to the present embodiment;

fig. 10 is a schematic perspective view of a first clamping mechanism in the present embodiment;

FIG. 11 is a schematic perspective view of the first clamping mechanism according to another angle of the present embodiment;

FIGS. 12A-12D are simplified schematic diagrams of the solder strip feeding process in the present embodiment;

wherein: 11. a first solder strip; 11a, a first end; 11b, a second end; 12. a second solder strip; 2. a battery sheet; x, a first direction; y, second direction; z, up and down direction;

100. a welding strip moving mechanism; 110. a moving rack; 120. a first movable jaw; 130. a second movable jaw; 131. jaw drive means; 140. a moving chassis; 141. a moving track; 150. a movement driving device;

200. a first clamping mechanism; 210. a first bracket; 220. a first jaw; 230. a first chassis; 240. an opening and closing driving device; 250. a push-down driving device;

300. a second clamping mechanism; 310. a second bracket; 320. a second jaw; 330. a second chassis; 340. a translation driving device; 350. a lifting seat; 360. a lifting driving device;

500. a production transfer device; 501. a first station; 502. a second station; 510. a carrier; 511. a bearing surface; 520. and a transmission track.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, but they are not limiting of the present invention.

Referring to fig. 1 to 12D, the present embodiment provides a solder strip feeding device for producing a battery string, and a solder strip feeding method for producing a battery string implemented based on the solder strip feeding device, which is used for moving a solder strip from a solder strip feeding device (not shown in the drawings) to a feeding station.

Referring to fig. 1 to 6, in the present embodiment, a battery string to be produced is transported along a first horizontal direction X, and the battery string includes solder strips and battery pieces 2 alternately arranged along the first direction X, and the solder strips and the battery pieces are alternately fed at a feeding station. Along the transmission direction of the battery strings, the welding strip feeding device is arranged at the upstream of the feeding station. The loading station specifically includes a first station 501 and a second station 502, where the first station 501 is located upstream of the second station 502. Along the first direction X, the widths of the first station 501 and the second station 502 are respectively equal to the widths of one battery piece 2, and each battery piece 2 can enter the first station 501 and the second station 502 successively. In this embodiment, in order to facilitate description of a specific structure of the solder strip feeding device, a horizontal direction perpendicular to the first direction X is further defined as a second direction Y, and a direction perpendicular to a horizontal plane is an up-down direction Z, so as to construct an XYZ three-dimensional coordinate system.

Referring to fig. 1 to 6, in the present embodiment, the solder strip to be fed includes at least a first solder strip 11, the first solder strip 11 extends along a first direction X, the first solder strip 11 has a first end 11a and a second end 11b respectively disposed at two ends in a longitudinal direction thereof, and the first end 11a is located upstream of the second end 11b. Referring to fig. 12A to 12D, in this embodiment, a plurality of first solder strips 11 are connected between every two adjacent battery pieces 2 along the first direction X, the plurality of first solder strips 11 are arranged at intervals along the second direction Y (only two are shown in fig. 3, and there may be more in practice), and each first solder strip 11 is stacked below one battery piece 2 at the upstream and above one battery piece 2 at the downstream, so that the positive and negative electrodes of the two adjacent battery pieces 2 are connected in series. Further, the battery strings to be produced in the embodiment have a plurality of groups arranged along the second direction Y, the solder strips to be fed further include second solder strips 12, the second solder strips 12 extend along the second direction Y, and adjacent battery pieces 2 along the second direction Y are connected in parallel through the second solder strips 12.

Referring to fig. 1 to 6, in the present embodiment, a battery string is specifically produced and transported in a production transport device 500, and the production transport device 500 includes a carrier 510 and a transport rail 520. The conveying track 520 extends along a first direction X, and the carriers 510 have a plurality of carriers (some carriers 510 are omitted in the drawing) sequentially arranged along the first direction X, and each carrier 510 is connected to the conveying track 520 so as to be capable of relatively moving along the first direction X. In this embodiment, the plurality of carriers 510 have substantially the same structure and size, and the width of each carrier 510 along the first direction X is approximately equal to the width of one battery piece 2, and each carrier 510 has a carrying surface 511, and the carrying surface 511 can carry and transfer the solder strips and the battery pieces 2 in the battery string. Here, the carrying surface 511 of each carrier 510 can carry one battery piece 2 in each group of battery strings, and can simultaneously carry a plurality of battery pieces 2 arranged along the second direction Y in different battery strings (only two battery pieces 2 arranged along the second direction Y are shown in the figure). In this embodiment, the carrying surfaces 511 of the plurality of carriers 510 are located in the same horizontal plane, so that the plurality of carriers 510 can jointly carry and transmit a plurality of groups of battery strings to be produced. In this embodiment, the loading station is actually located at one side of the production and transmission device 500, specifically, one side of the production and transmission device 500 near the solder strip feeding device along the first direction X, and when one carrier 510 is located at the first station 501, the carrier 510 adjacent to the downstream is located at the second station 502.

Referring to fig. 12A to 12D, in the present embodiment, when a plurality of carriers 510 sequentially arranged along the first direction X commonly carry the battery strings, except for the head end and the tail end of the battery strings, the first end 11a of each first solder strip 11 in the middle exposes the upstream edge of the corresponding carrying surface 511, but does not expose the upstream edge of the corresponding battery piece 2 above the first end 11a in the first direction X; the second end 11b of each first solder strip 11 in the middle is exposed to the downstream edge of its corresponding carrying surface 511, and is not exposed to the downstream edge of its corresponding battery piece 2 below.

Referring to fig. 1 to 6, in the present embodiment, the solder strip feeding device includes a solder strip moving mechanism 100, a first clamping mechanism 200, and a second clamping mechanism 300. Wherein the ribbon movement mechanism 100 is configured to move the ribbon in the first direction X from the ribbon supply apparatus to the first station 501 and/or the second station 502. When the ribbon moving mechanism 100 moves the first ribbon 11, the ribbon moving mechanism 100 clamps the second end 11b of the first ribbon 11, and since the first ribbon 11 is short in length and has a certain rigidity, the first ribbon 11 can be kept extending substantially in the horizontal direction when the ribbon moving mechanism 100 clamps only the second end 11b of the first ribbon 11. The first clamping mechanism 200 and the second clamping mechanism 300 can be connected with the welding strip moving mechanism 100 at the feeding station to enable the welding strip moving mechanism 100 to rapidly release welding strips and return to carry out transmission of the welding strips of the next round. The first clamping mechanism 200 is used to clamp the first end 11a of the first solder strip 11 moving to the feeding station, and the second clamping mechanism 300 is used to clamp the second end 11b of the first solder strip 11 moving to the feeding station. In the present embodiment, the first bonding tape 11 can be held by the bonding tape moving mechanism 100 from above, the first bonding tape 11 can be held by the first holding mechanism 200 from below, and the first bonding tape 11 can be held by the second holding mechanism 300 from above.

Referring to fig. 7 to 9, in the present embodiment, at least part of the solder ribbon moving mechanism 100 is provided so as to be movable relative to each other in the first direction X. Specifically, the solder strip moving mechanism 100 includes a moving frame 110, and a plurality of first moving jaws 120 connected to the moving frame 110. The movable frame 110 extends along the second direction Y, and a width of the movable frame 110 along the second direction Y is not smaller than a width of the carrier 510. The movable frame 110 can be arranged between the welding strip feeding device and the feeding station in a relative movement manner along the first direction X, the plurality of first movable clamping jaws 120 are sequentially arranged along the second direction Y, each first movable clamping jaw 120 can clamp or release one first welding strip 11, and the plurality of first movable clamping jaws 120 can simultaneously clamp and move a plurality of first welding strips 11 arranged along the second direction Y. In this embodiment, the welding strip moving mechanism 100 further includes a moving chassis 140, the moving chassis 140 is fixedly disposed on a horizontal plane or other fixed supports, the moving chassis 140 has two groups of moving rails 141 respectively disposed on two sides of the moving frame 110 in the second direction Y, each group of moving chassis 140 is provided with a moving rail 141 extending along the first direction X, two sides of the moving frame 110 can be connected to the moving rails 141 on the same side in a manner of relatively moving along the first direction X, and each side of moving chassis 140 is further provided with a moving driving device 150 for driving the moving frame 110 to relatively move along the first direction X. Further, the solder strip moving mechanism 100 further includes at least two second moving clamping jaws 130 connected to the moving frame 110, the at least two second moving clamping jaws 130 are disposed at intervals along the second direction Y, and the at least two second moving clamping jaws 130 are used for jointly clamping one second solder strip 12. In this embodiment, the second moving jaw 130 has two moving jaws disposed on two sides of the second direction Y of the moving frame 110, and both moving jaws can jointly clamp two ends of one second solder strip 12. The movable frame 110 is further provided with a driving device (not shown) for driving the plurality of first movable jaws 120 to open and close synchronously, and a jaw driving device 131 for driving each of the second movable jaws 130 to open and close. In this way, the first moving clamping jaws 120 and the second moving clamping jaws 130 in the welding strip moving mechanism 100 can move synchronously along with the moving frame 110, so that the first welding strip 11 and the second welding strip 12 required for producing the multi-parallel battery strings can be synchronously transmitted to the corresponding feeding stations.

Referring to fig. 2 to 11, in the present embodiment, at least part of the first clamping mechanism 200 is disposed at the first station 501, and the second clamping mechanism 300 is disposed downstream of the first clamping mechanism 200 along the first direction X. Specifically, the first clamping mechanism 200 includes a first bracket 210, and a plurality of first clamping jaws 220 connected to the first bracket 210, where the first bracket 210 extends along the second direction Y, and the plurality of first clamping jaws 220 are sequentially arranged along the second direction Y, and each of the first clamping jaws 220 is capable of clamping or releasing one of the first solder strips 11. Similarly, the second clamping mechanism 300 includes a second bracket 310, and a plurality of second clamping jaws 320 connected to the second bracket 310, where the second bracket 310 extends along a second direction Y, and the plurality of second clamping jaws 320 are sequentially arranged along the second direction Y, and each second clamping jaw 320 is capable of clamping or releasing one first solder strip 11. The first clamping jaws 220 and the second clamping jaws 320 are in one-to-one correspondence along the first direction X, and the corresponding first clamping jaws 220 and second clamping jaws 320 can simultaneously clamp two ends of one first welding strip 11. In this embodiment, the first support 210 is disposed to be capable of moving relatively in the up-down direction Z, the second support 310 is integrally higher than the first support 210, and when the corresponding first clamping jaw 220 and second clamping jaw 320 clamp one first solder strip 11 together, the first end 11a of the first solder strip 11 is lower than the second end 11b thereof. In this embodiment, the first bracket 210 is specifically disposed on the upstream side of the carrying surface 511 of the carrier 510 at the first station 501, so that the first clamping jaw 220 can clamp the first solder strip 11 to expose the first end 11a on the upstream side of the carrying surface 511, and the movements of the first clamping jaw 220 and the carrier 510 do not interfere with each other. On the other hand, the second support 310 is disposed above the carrier 510 at the first station 501 and the second station 502, and the second clamping jaw 320 exposes the second support 310 downward, and the lower end of the second clamping jaw 320 is slightly higher than the carrying surface 511 of the carrier 510, so that the second clamping jaw 320 does not contact to damage the battery piece 2 on the carrying surface 511.

Referring to fig. 9 and 10, in the present embodiment, the first clamping mechanism 200 further includes a first chassis 230, the first chassis 230 is fixed on a horizontal plane or other fixed supports, the first support 210 is connected to the first chassis 230 in a manner capable of moving relatively along the up-down direction Z, and the first clamping mechanism 200 further includes a pressing driving device 250 for driving the first support 210 to move along the up-down direction Z. The first rack 210 is further connected to the first chassis 230 in a manner capable of moving relatively along the first direction X, so that the first rack 210 can move to drive the plurality of first clamping jaws 220 to move synchronously. In this embodiment, the first rack 210 is further provided with an opening and closing driving device 240 for driving the plurality of first clamping jaws 220 to open and close synchronously, where the plurality of first clamping jaws 220 on the first rack 210 are arranged in groups, and each group of first clamping jaws 220 is driven to open and close by one opening and closing driving device 240.

Referring to fig. 7 and 8, in the present embodiment, the second support 310 can also be relatively movably disposed along the first direction X, but the second support 310 is always located downstream of the first support 210. The second support 310 has at least a first working position and a second working position relative to the loading station, the first working position being located upstream of the second working position along the first direction X, and the second working position being located at the second station 502. In this embodiment, the second bracket 310 may have three different working positions with respect to the loading station according to different lengths and positions of the first solder strip 11 to be loaded. Specifically, the second clamping mechanism 300 further includes a second chassis 330 and a lifting base 350. The second chassis 330 is fixed on a horizontal plane or other fixed supports, and the second chassis 330, the moving chassis 140, the first chassis 230, the transmission rail 520, and the like can be relatively and fixedly arranged. The second chassis 330 has two groups respectively disposed on two sides of the second bracket 310 in the second direction Y, the lifting seats 350 also have two groups respectively disposed on two sides of the second bracket 310 in the second direction Y, each group of lifting seats 350 is connected to the second chassis 330 on the same side in a manner of being capable of relatively moving along the first direction X, and each side of the second chassis 330 is provided with a translation driving device 340 for driving the corresponding lifting seat 350 to relatively move along the first direction X. Further, two sides of the second bracket 310 in the second direction Y are connected to the lifting seats 350 on the same side so as to be capable of moving relatively in the up-down direction Z, and a lifting driving device 360 for driving the second bracket 310 to move relatively in the up-down direction Z is connected to the lifting seat 350 on each side. The translation driving means 340 and the elevation driving means 360 at both sides can be operated synchronously, respectively, to ensure the smooth movement of the second bracket 310.

In this embodiment, the moving driving device 150, the pressing driving device 250, the translation driving device 340, the lifting driving device 360, the opening and closing driving device of each clamping jaw, and other driving devices for driving the relative movement of the components, etc. related to each mechanism of the solder strip feeding device may be any cylinder, motor, etc. in the prior art, and the invention is not limited thereto.

Referring to fig. 12A to 12D, a solder strip feeding method implemented based on the above solder strip feeding device in this embodiment is specifically described below, and includes the following steps:

s1, the welding strip moving mechanism 100 simultaneously pulls out a plurality of first welding strips 11 from a welding strip feeding device along a first direction X, wherein first end parts 11a of the plurality of first welding strips 11 are all moved to a first station 501, and second end parts 11b of the plurality of first welding strips 11 are all moved to a second station 502;

s2, the first clamping mechanism 200 clamps the first end parts 11a of the plurality of first welding strips 11 simultaneously, the second clamping mechanism 300 clamps the second end parts 11b of the plurality of first welding strips 11 simultaneously, and then the welding strip moving mechanism 100 releases the plurality of first welding strips 11;

s1 and S2 are repeatedly performed until a battery string of a desired length is obtained.

Referring to fig. 12A to 12D, in this embodiment, the above-mentioned solder strip feeding method is performed alternately with the feeding of the battery 2, after a group of solder strips and the battery 2 are placed at the feeding station, a plurality of carriers 510 on the conveying track 520 move downstream synchronously by one station, and then the solder strip feeding device and the battery feeding device (not shown in the drawings) can perform the feeding of the next round of solder strips and the battery 2 on the carriers 510 newly entering the feeding station, and the solder strips after the feeding overlap with the battery 2 in sequence along the first direction X. In this embodiment, the battery 2 is fed at the first station 501, the battery 2 is stacked above a set of solder strips fed, then the carrier 510 at the first station 501 moves downstream to the second station 502, a new carrier 510 enters the first station 501, and then S1 and S2 can be repeatedly performed.

In the embodiment, in S2, the solder strip moving mechanism 100 completes the handover with the first clamping mechanism 200 and the second clamping mechanism 300, and both the solder strip moving mechanism and the second clamping jaw 320 are located at relatively higher positions during the handover, and the second end 11b of the first solder strip 11 is higher than the carrying surface 511 of the carrier 510, so as to avoid the solder strip moving mechanism 100 from being close to the battery piece 2 on the carrying surface 511 and damaging the battery piece 2. After the first clamping mechanism 200 and the second clamping mechanism 300 jointly clamp the plurality of first solder strips 11, the first clamping mechanism 200 presses the first end portions 11a of the plurality of first solder strips 11 downward at the same time, the first end portions 11a can be pressed down to be slightly lower than the bearing surface 511 of the carrier 510, and the upper end portions of all the first clamping jaws 220 are lowered below the horizontal plane where the bearing surface 511 is located, so that at least part of the first solder strips 11 are attached to the bearing surface 511, and the first clamping jaws 220 cannot collide with the bottom of the battery piece 2 which is subsequently fed at the first station 501. Meanwhile, the second clamping mechanism 300 also presses the second end portions 11b of the plurality of first solder strips 11 downward, so that the second end portions 11b are as close to the battery pieces 2 as possible, but the second end portions 11b are not lower than the bearing surface 511 of the carrier 510, specifically slightly higher than the upper surface of the battery piece 2 at the second station 502, so that the second clamping jaw 320 does not touch and damage the battery piece 2, and the first end portions 11a of each first solder strip 11 are lower than the second end portions 11b after pressing. From the above, when the first clamping mechanism 200 and the second clamping mechanism 300 jointly clamp the plurality of first solder strips 11, the plurality of first solder strips 11 can be pressed on the bearing surface 511 at the first station 501, so that the position of each first solder strip 11 is ensured to be fixed and not to move freely, and meanwhile, the next batch of battery pieces 2 is conveniently fed at the first station 501.

In this embodiment, in S1, the solder ribbon moving mechanism 100 simultaneously moves at least one second solder ribbon 12 to the first station 501, and the second solder ribbon 12 is located below the plurality of first solder ribbons 11. In this way, since the two ends of the plurality of first bonding tapes 11 can be positioned and pressed by the first clamping mechanism 200 and the second clamping mechanism 300, respectively, the second bonding tape 12 can also be pressed on the bearing surface 511 at the first station 501, and is not easy to deviate.

Referring to fig. 12A to 12D, in the present embodiment, in the battery string to be produced, the first solder strips 11 located at the leading end and the trailing end in the first direction X are shorter in length than the first solder strips 11 located in the middle. Correspondingly, when the first solder ribbon 11 at the head end or the tail end is fed, the moving distance of the solder ribbon moving mechanism 100 along the first direction X needs to be adjusted, and the clamping position of the first clamping mechanism 200 and/or the second clamping mechanism 300 along the first direction X needs to be adjusted. Specifically, the solder strip feeding method of the embodiment further includes the following steps:

s3, the welding strip moving mechanism 100 simultaneously pulls out a plurality of first welding strips 11 from the welding strip feeding device along a first direction X, and both the first end 11a and the second end 11b of the plurality of first welding strips 11 are moved to a first station 501, wherein the first end 11a is positioned upstream of the second end 11 b;

s4, the second clamping mechanism 300 moves to the first station 501, and then S2 is executed.

Referring to fig. 12D, in the embodiment, the steps S3 and S4 are mainly applicable to feeding the first solder strip 11 at the tail end of the battery string, and the tail end first solder strip 11 is integrally located at the first station 501, and the second end 11b thereof does not exceed the downstream edge of the tail end battery chip 2. In addition, in cooperation with the first support 210 being required to be moved upstream in the first direction X by a distance in order for each first clamping jaw 220 to accurately clamp the first end 11a of the trailing first solder ribbon 11 when S4 is performed, the first end 11a of the trailing first solder ribbon 11 is located further upstream than the first solder ribbon 11 at other positions in the battery string.

Referring to fig. 12A, when the first solder strip 11 at the head end of the battery string is fed, the second end 11b of the first solder strip 11 is also located at the second station 502, so that feeding can be performed according to steps S1 and S2. However, compared to the first solder strip 11 located at the middle position of the battery string, when the first solder strip 11 at the head end is fed, the second end 11b thereof is relatively closer to the upstream of the second station 502, so that before the second clamping mechanism 300 interfaces with the solder strip moving mechanism 100, the position of the second clamping mechanism 300 needs to be adjusted, and the second bracket 310 is driven to move a certain distance upwards along the first direction X, so that each second clamping jaw 320 can accurately clamp the second end 11b of the first solder strip 11 at the head end.

As can be seen from the above, in the embodiment, the first bracket 210 and/or the second bracket 310 can relatively move along the first direction X before and after the first solder strip 11 is fed at the head end and the tail end of the battery string, so as to switch the working positions, so as to accurately clamp the two end portions of the corresponding first solder strip 11. It is to be understood that, in other embodiments, the working positions of the solder strip moving mechanism 100, the first clamping mechanism 200, and the second clamping mechanism 300 may be adjusted along the first direction X according to the length and/or the placement position of the first solder strip 11 to be fed.

In summary, the welding strip feeding device and the welding strip feeding method for producing battery strings provided in this embodiment can realize synchronous and efficient feeding of a plurality of first welding strips 11 and at least one second welding strip 12, each welding strip after feeding can be accurately positioned at the feeding station, and the first clamping mechanism 200 and the second clamping mechanism 300 for positioning cannot affect feeding of battery pieces and other components, so that the overall production efficiency of the battery strings is improved, and the welding strip feeding device and the welding strip feeding method are particularly suitable for production of multi-parallel battery strings with a large number of welding strips to be fed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (12)

1. The welding strip feeding device is used for moving a welding strip from a welding strip feeding device to a feeding station, the battery string to be produced is conveyed along a horizontal first direction, the welding strip feeding device is arranged at the upstream of the feeding station along the conveying direction of the battery string, the feeding station comprises a first station and a second station, and the first station is positioned at the upstream of the second station; the welding strip to be fed at least comprises a first welding strip, the first welding strip extends along the first direction, the first welding strip is provided with a first end part and a second end part which are respectively arranged at two end parts in the length direction of the first welding strip, and the first end part is positioned at the upstream of the second end part, and the welding strip feeding device is characterized by comprising:

the welding strip moving mechanism is arranged in a manner of being capable of relatively moving along the first direction, and is used for moving the welding strip along the first direction from the welding strip feeding device to the first station and/or the second station;

the first clamping mechanism is arranged at the first station and is used for clamping the first end part of the first welding strip moving to the feeding station;

the second clamping mechanism is arranged at the downstream of the first clamping mechanism along the first direction and is used for clamping the second end part of the first welding strip moving to the feeding station.

2. The solder strip loading device for producing battery strings according to claim 1, wherein: the welding strip moving mechanism can clamp the first welding strip from the upper side, the first clamping mechanism can clamp the first welding strip from the lower side, and the second clamping mechanism can clamp the first welding strip from the upper side.

3. The solder strip loading device for producing battery strings according to claim 1, wherein: the strap moving mechanism clamps the second end of the first strap as the strap moving mechanism moves the first strap.

4. The solder strip loading device for producing battery strings according to claim 1, wherein: the welding strip moving mechanism comprises a moving frame and a plurality of first moving clamping jaws connected with the moving frame, the moving frame can be arranged between the welding strip feeding device and the feeding station in a relative movement mode along a first direction, the first moving clamping jaws are sequentially arranged along a second direction, the second direction is a horizontal direction perpendicular to the first direction, and each first moving clamping jaw can clamp or release one first welding strip.

5. The solder strip loading device for producing battery strings according to claim 4, wherein: the welding strip to be fed further comprises a second welding strip, and the second welding strip extends along the second direction; the welding strip moving mechanism further comprises at least two second moving clamping jaws connected with the moving frame, the at least two second moving clamping jaws are arranged at intervals along the second direction, and the at least two second moving clamping jaws are used for clamping one second welding strip together.

6. The solder strip loading device for producing battery strings according to claim 1, wherein: the first clamping mechanism comprises a first bracket and a plurality of first clamping jaws connected with the first bracket, the first clamping jaws are sequentially arranged along a second direction, the second direction is a horizontal direction perpendicular to the first direction, and each first clamping jaw can clamp or release one first welding strip;

the second clamping mechanism comprises a second bracket and a plurality of second clamping jaws connected with the second bracket, the second clamping jaws are sequentially arranged along the second direction, and each second clamping jaw can clamp or release one first welding strip;

the first clamping jaws and the second clamping jaws are in one-to-one correspondence along the first direction, and the corresponding first clamping jaws and second clamping jaws can clamp two end parts of one first welding strip at the same time.

7. The solder strip loading device for producing battery strings according to claim 6, wherein: the first support can be arranged in a relative motion mode along the up-down direction, the second support can be arranged in a relative motion mode along the up-down direction, and when the corresponding first clamping jaw and the second clamping jaw jointly clamp one first welding strip, the first end portion of the first welding strip is lower than the second end portion of the first welding strip.

8. The solder strip loading device for producing battery strings according to claim 6, wherein: the first support can be arranged in a relative motion along the first direction, the second support can be arranged in a relative motion along the first direction, and the second support is always positioned at the downstream of the first support; the second support is provided with a first working position and a second working position relative to the feeding station, the first working position is located at the upstream of the second working position along the first direction, and the second working position is located at the second station.

9. A solder strip loading method for producing a battery string, which is implemented based on the solder strip loading device according to any one of claims 1 to 8, characterized in that the solder strip loading method comprises the steps of:

s1, simultaneously pulling out a plurality of first welding strips from a welding strip feeding device along the first direction by the welding strip moving mechanism, wherein first ends of the plurality of first welding strips are moved to a first station, and second ends of the plurality of first welding strips are moved to a second station;

s2, simultaneously clamping first end parts of a plurality of first welding strips by the first clamping mechanism, simultaneously clamping second end parts of a plurality of first welding strips by the second clamping mechanism, and releasing the plurality of first welding strips by the welding strip moving mechanism;

and repeatedly executing the S1 and the S2.

10. The solder strip loading method for producing a battery string according to claim 9, wherein: in the step S2, after the first clamping mechanism and the second clamping mechanism jointly clamp the plurality of first welding strips, the first clamping mechanism simultaneously presses down the first ends of the plurality of first welding strips, and the second clamping mechanism simultaneously presses down the second ends of the plurality of first welding strips, and after the pressing down, the first ends of each first welding strip are lower than the second ends of the first welding strips.

11. The solder strip loading method for producing a battery string according to claim 9, wherein: in the step S1, the welding strip moving mechanism moves at least one second welding strip to the first station, the second welding strip extends along a second direction, the second direction is a horizontal direction perpendicular to the first direction, and the second welding strip is located below the plurality of first welding strips.

12. The solder strip loading method for producing a battery string according to claim 9, wherein the solder strip loading method further comprises the steps of:

s3, simultaneously pulling out a plurality of first welding strips from the welding strip feeding device along the first direction by the welding strip moving mechanism, wherein the first end parts and the second end parts of the plurality of first welding strips are moved to the first station, and the first end parts are positioned at the upstream of the second end parts;

s4, the second clamping mechanism moves to the first station, and then S2 is executed.