CN219066832U - Double-sided dispensing equipment - Google Patents

Abstract

The utility model relates to the technical field of battery dispensing equipment, in particular to double-sided dispensing equipment. The device comprises a frame, a battery string conveyer belt unit, a front side dispensing unit, a back side dispensing unit and a curing unit, wherein the battery string conveyer belt unit, the front side dispensing unit, the back side dispensing unit and the curing unit are arranged on the frame; the front side dispensing unit is arranged above the input end of the battery string conveying belt unit; the back glue dispensing unit is arranged below the input end of the battery string conveying belt unit, and the front glue dispensing unit and the back glue dispensing unit can synchronously move to dispense glue on the front and back sides of the battery piece; the solidifying unit is arranged above the output end of the battery string conveying belt unit. According to the equipment, synchronous dispensing is carried out on the front and back sides of the stacked and paved battery pieces with the welding strips, then the battery strings are solidified, so that the process steps of manufacturing the battery strings are simplified, the quality of the battery strings is guaranteed, the processes of carrying and overturning the battery pieces are omitted, and the like, and therefore the situation that the dispensed battery pieces are scratched or scratched at dispensing positions due to multiple contact is avoided.

Description

Double-sided dispensing equipment

Technical Field

The utility model relates to the technical field of battery dispensing equipment, in particular to double-sided dispensing equipment.

Background

In the production process of the photovoltaic cell assembly, a plurality of cell sheets are connected in series by using a welding strip and stacked to form a cell string. Along with the continuous change of the process of the high-efficiency battery assembly, the requirement on the integration level is higher and higher, so that in order to improve the reliability of the battery string, the battery piece needs to be subjected to dispensing operation, and the welding strip connection is firmer.

At present, the traditional battery string production process is to firstly perform dispensing operation on the front surface of a battery piece; then, after the battery piece is turned over, dispensing operation is carried out on the back surface of the battery piece; and then the welding belt is paved on the conveying belt, the battery piece after dispensing is paved on the welding belt, the conveying belt forwards conveys a station, the welding belt and the battery piece after dispensing are correspondingly paved continuously, the welding belt is ensured to be arranged on the front side and the back side of the battery piece, and the operation is circulated until a battery string is formed.

The conventional dispensing operation on the battery piece is required to be performed by manually setting a dispensing track, so that the dispensing operation procedure is very complicated, the dispensing efficiency is low, and therefore, the dispensing equipment which has high automation degree and can be precisely positioned is urgently required to be developed for the dispensing operation on the battery piece, and the reliability of the battery string is improved.

Meanwhile, in the traditional battery string production process, the adhesive is dispensed on the front surface and then on the back surface, so that the time of the adhesive on the battery piece is prolonged, and the paving and solidification of the welding strip of the battery piece at the later stage are not facilitated. And after one side is glued, carry and overturn, carry out another side and glue, carry and overturn in-process cause the scratch of battery piece especially easily, influence the shaping that the point glued to influence the point and glue efficiency.

Based on the above, a novel double-sided dispensing device is researched and developed in the utility model to solve the problems.

Disclosure of Invention

The utility model aims to provide a double-sided dispensing device, which is used for synchronously dispensing the front and back sides of the battery pieces stacked and paved with welding strips, and then carrying out curing treatment, so that the process steps of manufacturing the battery strings are simplified, the quality of the battery strings is ensured, the processes of carrying and overturning the battery pieces are omitted, and the like, so that the dispensed battery pieces are prevented from being scratched or scratched at a dispensing position due to multiple contact.

The utility model adopts the following technical scheme: the double-sided dispensing equipment comprises a rack, and a battery string conveying belt unit, a front side dispensing unit, a back side dispensing unit and a curing unit which are arranged on the rack;

the front side dispensing unit is arranged above the input end of the battery string conveying belt unit; the back glue dispensing unit is arranged below the input end of the battery string conveying belt unit, and the front glue dispensing unit and the back glue dispensing unit can synchronously move to dispense glue on the front and back sides of the battery piece;

the solidifying unit is arranged above the output end of the battery string conveying belt unit.

Further, the battery string conveying unit comprises a conveying belt, a plurality of battery piece stations are arranged on the conveying belt, and at least one guide hole is respectively formed in two sides, perpendicular to the movement direction of the conveying belt, of each battery piece station.

Further, the front side dispensing unit and the back side dispensing unit are provided with guide posts corresponding to the positions of the guide holes relative to one side of the battery piece station.

Further, the guide post is tapered.

Further, the material of the guide post has elasticity.

Further, the number of the guide holes is 4, and the number of the guide posts is the same as that of the guide holes.

Further, the front side dispensing unit and the back side dispensing unit are respectively provided with a branching dispensing injection head, each branching dispensing injection head comprises a dispensing injection head outer sleeve and a dispensing injection head guide pipe, and the dispensing injection head outer sleeve is connected with the dispensing injection head guide pipe through an elastic piece.

Further, the inner wall of the dispensing injection head guide tube is in a spiral shape.

Further, a plurality of vertical marks are arranged at intervals on the front end face of the input end of the battery string conveying belt unit.

Compared with the prior art, the utility model has the beneficial effects that:

1) The double-sided dispensing equipment comprises a main battery string conveying belt unit, a front side dispensing unit, a back side dispensing unit, a curing unit and the like, and the dispensing and curing processes are automated through the mutual matching of the units, so that the batch production requirements of factories are met, and the double-sided dispensing equipment has a wide market space; meanwhile, the front surface dispensing unit and the back surface dispensing unit are oppositely arranged, the front surface dispensing and the back surface dispensing are carried out on the stacked and paved battery pieces with welding strips, the front surface and back surface synchronous dispensing effect is achieved, then the battery pieces are conveyed to a designated position, namely a curing unit, and are cured, so that the process steps of manufacturing the battery strings are simplified, the quality of the battery strings is guaranteed, the processes of carrying and overturning the battery pieces and the like are omitted, and the situation that the dispensed battery pieces are scratched or scratched at the dispensing positions or are caused by multiple contact is avoided, and the quality of the battery strings can be better guaranteed. Simultaneously, the back dispensing unit and the front dispensing unit synchronously move, so that synchronous dispensing of the front and the back of the battery piece is realized, and the production efficiency is improved; meanwhile, the front side and the back side synchronously perform the glue dispensing function, and the back side glue dispensing unit and the front side glue dispensing unit counteract the upper acting force and the lower acting force of the conveyer belt in the battery string conveyer belt unit, so that the glue dispensing effect is better.

2) The guide posts of the front dispensing unit and the back dispensing unit are respectively inserted into the guide holes at the same position of the conveying belt from the front and back directions, and the guide holes at the same position are used for realizing positioning, so that the improvement of the dispensing positioning accuracy is facilitated.

3) The guide post is made of elastic material, realizes elastic support, is favorable to the self-adaptation fine setting of pressure, when in order to avoid the positive point to glue the backup pad contact battery piece and weld the area, the too big piece or the production fish tail that cause the battery piece of pressure, avoid hard pressure and cause new defect.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a double-sided dispensing apparatus according to an embodiment of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the back side dispensing unit of FIG. 1;

FIG. 4 is a schematic view of the back side dispensing support plate of FIG. 3;

FIG. 5 is a cross-sectional view of the back side dispensing support plate of FIG. 4;

FIG. 6 is a schematic view of the front dispensing support plate of FIG. 1;

FIG. 7 is a cross-sectional view of the front dispensing support plate of FIG. 6;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a second cross-sectional view of the front dispensing support plate of FIG. 6;

FIG. 10 is an assembly and split construction view of the first split dispensing injection head of FIG. 9;

in the figure: a frame 1;

the battery string conveyer belt unit 2, the vertical mark 20 and the guide hole 21;

the front surface dispensing unit 3, the front surface dispensing support plate 30, the first main glue injection inlet 301, the first shunt dispensing injection head 302, the dispensing injection head outer sleeve 3021, the dispensing injection head guide pipe 3022, the compression spring 3023 and the first guide post 303;

the back dispensing unit 4, the back dispensing bracket 40, the back dispensing lifting guide rail 41, the back dispensing support plate 42, the second main injection port 421, the second split dispensing injection head 422, the second guide post 423, the back dispensing lifting cylinder 43 and the slide block 44;

and a curing unit 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The utility model is discussed in detail below in conjunction with fig. 1-10 and the specific embodiments:

as shown in fig. 1 to 10, the present utility model provides a double-sided dispensing device mainly used for dispensing operations after laying battery pieces and welding strips, which comprises a frame 1, and a battery string conveyer belt unit 2, a front side dispensing unit 3, a back side dispensing unit 4 and a curing unit 5 which are mounted on the frame 1.

The front side dispensing unit 3 is arranged right above the input end of the battery string conveying belt unit 2; the back dispensing unit 4 is arranged right below the input end of the battery string conveying belt unit 2 and is opposite to the front dispensing unit 3 so as to realize dispensing of the front and back sides of the same station of the battery piece; correspondingly, the back dispensing unit 4 and the front dispensing unit 3 can synchronously move to dispense the front and back sides of the battery piece, synchronous dispensing of the front and back sides of the battery piece is realized, the synchronous dispensing improves the production efficiency, meanwhile, the front and back synchronous dispensing functions, and the back dispensing unit 4 and the front dispensing unit 3 offset the upper acting force and the lower acting force of the conveying belt in the battery string conveying belt unit 2, so that the dispensing effect is better.

And the curing unit 5 is arranged right above the output end of the battery string conveying belt unit 2 and used for curing after dispensing. In this embodiment, the curing unit 5 is a UV curing unit, which has the advantages of short curing time, time saving, and less thermal damage.

When the device is used, the battery piece and the welding strip are correspondingly paved on the front station of the battery string conveying belt unit 2, and then the dispensing operation of the battery piece is realized through the actions of the front dispensing unit 3 and the back dispensing unit 4; after dispensing, the battery string conveyer belt unit 2 continuously conveys materials downwards, and correspondingly, at the next station of the battery string conveyer belt unit 2, battery sheets, welding strips and dispensing operation are continuously and circularly paved to form stacked battery strings, and the battery strings are continuously conveyed downwards through the battery string conveyer belt unit 2 and conveyed to the fixing unit 5 for curing treatment.

The double-sided dispensing equipment provided by the utility model consists of the main battery string conveying belt unit 2, the front side dispensing unit 3, the back side dispensing unit 4, the curing unit 5 and the like, and the dispensing and curing processes are automatically realized through the mutual matching of the units, so that the production efficiency can be greatly improved, the batch production requirements of factories are met, and the market space is wide; meanwhile, the front surface dispensing unit 3 and the back surface dispensing unit 4 synchronously dispense the front and back surfaces of the battery pieces stacked and paved with the welding strips, and then convey the battery pieces to the designated position, namely the position of the curing unit 5, so that the curing treatment is carried out, the process steps of manufacturing the battery strings are simplified, the quality of the battery strings is guaranteed, the processes of carrying and overturning the battery pieces and the like are omitted, and the situation that the dispensed battery pieces are scratched or scratched at the dispensing positions or are new due to multiple contact is avoided, so that the quality of the battery strings can be better guaranteed.

Further, the battery string transporting belt unit 2 may be a belt transporting device for transporting battery sheets or battery strings in the prior art, and may be designed by those skilled in the art with reference to the prior art. Correspondingly, a plurality of vertical marks 20 with intervals can be arranged on the front end face of the input end of the battery string conveying belt unit 2 and used for positioning the welding belt, so that the accuracy of the feeding position can be better ensured.

Further, the battery string conveying unit 2 comprises a conveying belt, a plurality of battery piece stations which are arranged at intervals and used for placing battery pieces are arranged on the conveying belt, at least one guide hole 21 is respectively formed in each of two sides of each battery piece station perpendicular to the movement direction of the conveying belt, and the guide holes 21 play a role in positioning and are used for matching the front dispensing unit 3 with the back dispensing unit 4 to achieve a positioning function.

Correspondingly, the front dispensing unit 3 and the back dispensing unit 4 are provided with guide posts corresponding to the positions of the guide holes 21 relative to one surface of the battery piece station. Specifically, the top of the guide post is in a conical design, so that the guide post is convenient to insert; meanwhile, the material of the guide post in the embodiment has elasticity, so that elastic support is realized, and self-adaptive fine adjustment of pressure is facilitated. In addition, preferably, the number of the guide holes 21 is 4, and the guide holes are respectively arranged at four corners of the battery piece station, and the number of the guide posts is the same as that of the guide holes; four-point positioning is higher in positioning accuracy.

In this embodiment, the specific structure of the front dispensing unit 3 may be designed to include the front dispensing support plate 30. The front of the front dispensing support plate 30 is provided with a first main glue injection inlet 301, and the first main glue injection inlet 301 is a glue inlet and can be connected with an external glue injection machine for glue input. The back of the front side dispensing support plate 30 is provided with a plurality of first branch dispensing injection heads 302 communicated with the first dispensing main inlet 301, as shown in fig. 6-10, the first branch dispensing injection heads 302 are arranged in a regular arrangement, and correspondingly, a plurality of dispensing connecting grooves are arranged on the front side dispensing support plate 30 to realize the communication between the first dispensing main inlet 301 and the first branch dispensing injection heads 302. And the four corners of the back of the front dispensing support plate 30 are respectively provided with a guide post, and the corresponding guide posts of the back of the front dispensing support plate 30 are first guide posts 303 for being connected with the guide holes 21 on the conveyor belt in the battery string conveyor belt unit 2 in an inserting manner.

Meanwhile, the back dispensing unit 4 includes a back dispensing support plate 42, and the front surface of the back dispensing support plate 42 has a second main inlet 421, where the second main inlet 421 is an inlet of the glue, and can be connected with an external glue injection machine for inputting the glue.

In this embodiment, as shown in fig. 3 and 4, the second split-path dispensing injection heads 422 are arranged regularly, and correspondingly, some glue injection connecting grooves are arranged on the back-surface dispensing support plate 422, so as to realize the conduction between the second main glue injection inlet 421 and the second split-path dispensing injection heads 422. And the four corners at the back of the back dispensing support plate 42 are respectively provided with a second guide post 423 for being connected with the guide holes 21 at the same position on the conveyor belt in the battery string conveyor belt unit 2 in an inserting way, so that the first guide post 303 and the second guide post 423 are respectively inserted into the guide holes 21 at the same position on the conveyor belt from the front and the back, and the positioning is realized through the guide holes 21 at the same position, thereby being beneficial to the improvement of the dispensing positioning accuracy. In the present utility model, the first and second discussion are for convenience of description only.

During operation, the front side dispensing support plate 30 is inserted and arranged on the guide holes 21 of the battery string conveying belt unit 2 through the first guide posts 303 at four corners of the back side of the front side dispensing support plate 30, so that a certain compression limiting effect is achieved on paved battery pieces and welding belts, and the welding belt deflection is avoided. Then, through the second guide posts 423 at four corners of the back dispensing support plate 42, the back dispensing support plate 42 is inserted into the guide holes 21 at the same position of the conveying belt from the back of the workpiece to be dispensed, so that the front dispensing support plate 30 and the back dispensing support plate 42 are positioned through the guide holes 21 at the same position, and the improvement of the dispensing positioning accuracy is facilitated. Then, the first main glue injection inlet 301 and the second main glue injection inlet 421 are connected with external glue injection machines synchronously, and the glue injection operation on the front and the back of the battery piece is realized through the first shunt glue injection head 302 and the second shunt glue injection head 422. The guide post is inserted into the guide hole 21 of the conveying belt, then the dispensing of the battery piece is realized through the shunt dispensing injection head, the same guide hole 21 is positioned, the precise positioning of dispensing is facilitated, and the dispensing precision is improved. It should be noted that, after the dispensing operation is completed, the front dispensing support plate 30 may still be placed on the dispensing battery piece, and the battery piece is pressed into a sheet, so that the battery piece is continuously conveyed downwards along with the conveying belt in the battery string conveying belt unit 2, so as to avoid the displacement of the workpiece to be dispensed in the conveying process.

Specifically, in order to avoid that the front dispensing support plate 30 contacts the battery piece and the welding belt and the excessive pressure causes fragments or scratches to the battery piece, the front dispensing support plate 30 is elastically connected with the conveying belt on the battery string conveying belt unit 2 in a plugging manner, and the elastic support is adopted to avoid the new defect caused by hard pressing. The specific technical scheme is as follows: the first guide post 303 and the second guide post 423 are elastic guide posts, or elastic connecting pieces are arranged at the guide holes 21 on the conveying belt in the battery string conveying belt unit 2, so that the elastic plug connection between the first guide post 303 and the second guide post 423 and the guide holes 21 on the conveying belt is realized, the elastic support is realized, and the self-adaptive fine adjustment of pressure is facilitated. Correspondingly, the specific structures of the elastic guide post and the elastic connecting piece are not limited in the utility model, and the elastic guide post is designed by a person skilled in the art according to actual situations or the prior art is adopted, for example, the elastic guide post is made of an elastic material and has an elastic adjusting function, or the elastic guide post comprises an elastic piece and the like, so long as the elastic plug-in connection between the front dispensing support plate 30 and the conveying belt on the battery string conveying belt unit 2 can be realized.

More specifically, in order to avoid that the excessive pressure causes fragments or scratches to the battery pieces when the dispensing injection heads on the front dispensing support plate 30 and the back dispensing support plate 42 contact the battery pieces and the solder strips, the first shunt dispensing injection head 302 and the second shunt dispensing injection head 422 are designed to be elastic glue injection, so that new defects caused by hard pressing are avoided. The specific technical scheme is as follows:

the first shunt dispensing injection head 302 and the second shunt dispensing injection head 422 adopt the same structure, and each of the first shunt dispensing injection head 302 and the second shunt dispensing injection head 422 comprises a dispensing injection head outer sleeve 3021 and a dispensing injection head guide pipe 3022 sleeved in the dispensing injection head outer sleeve 3021, and the dispensing injection head outer sleeve 3021 is connected with the dispensing injection head guide pipe 3022 through an elastic piece. In this embodiment, the elastic member is a compression spring 3023, so as to realize elastic connection between the outer sleeve 3021 of the dispensing injection head and the guide tube 3022 of the dispensing injection head, and to realize elastic glue injection, and avoid excessive pressure of the dispensing injection head on the battery piece, and cause fragments or scratches on the battery piece.

Wherein, the outer sleeve 3021 of the dispensing injection head and the guide tube 3022 of the dispensing injection head are hollow cylindrical, and the inner wall surface of the guide tube 3022 of the dispensing injection head is spiral, which is beneficial to dispensing and blanking, and the spiral design is beneficial to improving the dispensing effect.

Further, the back dispensing unit 4 includes a back dispensing support plate 42, a back dispensing lifting rail 41, and a back dispensing lifting cylinder 43.

Wherein, the back point gum support 40 is installed on the frame 1, the back point gum jacking guide rail 41 is vertically installed in the outside of the back point gum support 40, the bottom of the back point gum support plate 42 is slidably installed on the back point gum jacking guide rail 41 through the sliding block 44, meanwhile, the sliding block 44 at the bottom of the back point gum support plate 42 is in transmission connection with the back point gum jacking cylinder 43, the back point gum jacking cylinder 43 drives the back point gum support plate 42 to lift and slide along the back point gum jacking guide rail 41, so as to realize the lifting adjustment of the back point gum support plate 42. The lifting direction of the back dispensing support plate 42 is perpendicular to the conveying direction of the battery string conveying belt unit 2.

During operation, start back point and glue jacking cylinder 43, drive back point and glue backup pad 42 and glue jacking guide rail 41 along the back and rise upwards, stop back point and glue backup pad 42 and prop up the back at the battery piece to correspond, through the second guide post 423 of the four corners department at back point and glue backup pad 42 back, peg graft the back point and glue backup pad 42 and set up on the guiding hole 21 of battery cluster conveyer belt unit 2, have certain compress tightly restriction effect to the battery piece of laying and welding area, avoid welding area skew. And then dispensing through the second glue injection main inlet 421. After dispensing is completed, the back dispensing jacking cylinder 43 is correspondingly started again, the back dispensing support plate 42 is driven to descend along the back dispensing jacking guide rail 41, the back dispensing support plate 42 is reset to the initial position, and the next dispensing operation is waited.

The double-sided dispensing equipment disclosed by the utility model has the following approximate working process:

1) And a welding strip, a battery piece and a welding strip are sequentially paved on the front station of the battery string conveying belt unit 2.

2) First guide posts 303 at four corners of the back of the front dispensing support plate 30 are inserted into guide holes 21 of the conveyor belt of the battery string conveyor belt unit 2, so that a limiting effect is exerted on laid battery pieces and welding strips, and the welding strips are prevented from shifting; in step, the back dispensing jacking cylinder 43 is started, the back dispensing support plate 42 is driven to move upwards along the back dispensing jacking guide rail 41 until the back dispensing support plate 42 is stopped against the back of the battery piece, and correspondingly, the second guide posts 423 at four corners of the back dispensing support plate 42 are inserted into the guide holes 21 of the battery string conveying belt unit 2, so that the laid battery piece and the welding belt are limited, and the welding belt deviation is avoided.

3) The first glue injection main inlet 301 is externally connected with an external glue injection machine, and the front glue injection operation of the battery piece is realized through the first shunt glue injection head 302, and the second glue injection main inlet 421 is synchronously connected with the external glue injection machine, and the back glue injection operation of the battery piece is realized through the second shunt glue injection head 422; then, the first main injection inlet 301 of the front dispensing unit 3 and the second main injection inlet 421 of the back dispensing unit 4 exit from the injection.

4) The back dispensing jacking cylinder 43 is started again, the back dispensing support plate 42 is driven to descend along the back dispensing jacking guide rail 41, the back dispensing support plate 42 is reset to the initial position, and the next dispensing operation is waited.

5) The front dispensing support plate 30 is still placed on the dispensing battery piece, the battery piece is pressed into a sheet, and the battery piece is continuously conveyed downwards along with the conveying belt in the battery string conveying belt unit 2.

6) And continuously paving the battery pieces and the welding strips at the next station of the battery string conveying belt unit 2, circulating the steps to form a stacked battery string, continuously conveying the battery string downwards through the battery string conveying belt unit 2, and conveying the battery string to the fixing unit 5 for curing treatment.

The double-sided dispensing equipment changes the manufacturing process of the transmission battery string, firstly lays the welding strip and the battery piece into the battery string, directly realizes the seamless butt joint of the battery piece feeding dispensing through accurate alignment when the battery string is formed, simultaneously avoids the front and the back of the traditional dispensing battery piece respectively, does not need to consider the whole carrying, detecting and dispensing processes, avoids the scratch generated on the dispensed position, and has the dispensing efficiency and the dispensing speed far higher than those of the traditional dispensing mode.

The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims (9)

1. Double-sided dispensing equipment, its characterized in that:

the device comprises a frame, a battery string conveyer belt unit, a front side dispensing unit, a back side dispensing unit and a curing unit, wherein the battery string conveyer belt unit, the front side dispensing unit, the back side dispensing unit and the curing unit are arranged on the frame;

the front side dispensing unit is arranged above the input end of the battery string conveying belt unit; the back side dispensing unit is arranged below the input end of the battery string conveying belt unit, and the front side dispensing unit and the back side dispensing unit can synchronously move to dispense the front and back sides of the battery piece;

the solidifying unit is arranged above the output end of the battery string conveying belt unit.

2. The double-sided dispensing apparatus of claim 1, wherein:

the battery string conveyer belt unit comprises a conveyer belt, a plurality of battery piece stations are arranged on the conveyer belt, and at least one guide hole is respectively arranged on two sides of each battery piece station, which are perpendicular to the movement direction of the conveyer belt.

3. The double-sided dispensing apparatus of claim 2, wherein: the front side dispensing unit and the back side dispensing unit are opposite to one side of the battery piece station, and guide columns are arranged at positions corresponding to the guide holes.

4. A double sided dispensing apparatus as claimed in claim 3, wherein: the guide post is conical.

5. The double-sided dispensing apparatus of claim 4, wherein: the guide post is made of elastic material.

6. A double sided dispensing apparatus as claimed in claim 3, wherein: the number of the guide holes is 4, and the number of the guide posts is the same as that of the guide holes.

7. The double-sided dispensing apparatus of claim 1, wherein:

the front dispensing unit and the back dispensing unit are respectively provided with a branching dispensing injection head, each branching dispensing injection head comprises a dispensing injection head outer sleeve and a dispensing injection head guide pipe, and the dispensing injection head outer sleeve is connected with the dispensing injection head guide pipe through an elastic piece.

8. The double-sided dispensing apparatus of claim 7, wherein:

the inner wall of the dispensing injection head guide pipe is spiral.

9. The double-sided dispensing apparatus according to any one of claims 1 to 8, wherein:

and a plurality of vertical marks at intervals are arranged on the front end face of the input end of the battery string conveyer belt unit.

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