CN220138276U

CN220138276U - Buffer gear and transmission buffer gear

Info

Publication number: CN220138276U
Application number: CN202321553953.1U
Authority: CN
Inventors: 刘冬; 万柳斌; 韩小亮
Original assignee: Tonghe New Energy Jintang Co ltd
Current assignee: Tonghe New Energy Jintang Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-05
Anticipated expiration: 2033-06-16

Abstract

The utility model provides a buffer mechanism and a transmission buffer device, and relates to the field of photovoltaic manufacturing. The buffer mechanism comprises a body, wherein the body is provided with a containing space and an outlet for outputting a battery piece; two inner side walls of the body in the Y direction are respectively provided with a plurality of supporting pieces arranged along the Z direction, two adjacent supporting pieces in the Z direction form a slot, each supporting piece is provided with a cleaning part extending out of the body from an outlet, the cleaning part is provided with two cleaning surfaces oppositely arranged along the Z direction, and at least one cleaning surface is provided with a first cleaning brush. The screen printing machine can solve the problems of screen printing slurry leakage, screen printing explosion and friction scratch of the battery piece when the battery piece temporarily stored by the buffer mechanism is subjected to screen printing.

Description

Buffer gear and transmission buffer gear

Technical Field

The utility model relates to the field of photovoltaic manufacturing, in particular to a buffer mechanism and a transmission buffer device.

Background

The cell is an important component in the solar cell, and the solar energy is received through the cell. In the existing battery piece production and processing process, before screen printing, the battery piece is temporarily stored in a buffer mechanism of each production line, and the battery piece production line conveying is completed through the buffer mechanism.

When the battery piece temporarily stored to the existing buffer mechanism is subjected to screen printing, the problems of screen printing plate slurry leakage, plate explosion and friction scratch of the battery piece exist.

Disclosure of Invention

The utility model provides a buffer mechanism and a transmission buffer device, which can solve the problems of screen printing paste leakage, screen printing explosion and friction scratch of a battery piece when the battery piece temporarily stored by the buffer mechanism is subjected to screen printing.

In a first aspect, an embodiment of the present utility model provides a caching mechanism, including: the body is provided with an accommodating space for accommodating the battery piece and an opening for enabling the battery piece to enter and exit the accommodating space along the X direction; the body has a plurality of support pieces that are used for supporting the battery piece along the Z direction range respectively at two inside walls of Y direction, and two adjacent support pieces of Z direction constitute the slot, and every support piece has the cleaning part that stretches out the body from the opening, and the cleaning part has two cleaning surfaces along Z direction opposite arrangement, and at least one cleaning surface is equipped with first cleaning brush.

In the realization process, on the one hand, the setting of utilizing first cleaning brush, can be when taking out the battery piece from buffer memory mechanism, utilize the relative movement of battery piece and first cleaning brush, clean both sides that the battery piece is arranged in the slot, get rid of the impurity granule that both edges are attached, avoid the battery piece to carry out screen printing extrusion in the follow-up, cause the battery piece to be rubbed the fish tail when attaching great impurity granule in the screen printing extrusion process, and the problem such as screen printing thick liquid leakage, explode the version, on the other hand because first cleaning brush is located the body, on the other hand, the impurity of clearance can not be swept back in the slot on the one hand, be favorable to buffer memory mechanism follow-up cyclic utilization time, comparatively clean in the slot, avoid introducing impurity at the edge of battery piece when influencing the buffer memory battery piece, on the other hand when temporarily storing the battery piece in buffer memory mechanism, can avoid battery piece and first cleaning brush long-time contact, only contact at output in-process, prevent that both from long-time contact from leading to the battery piece edge impaired.

In some possible embodiments, the cleaning portion is provided with a weep hole extending through both cleaning surfaces.

In the realization process, the impurity particles which are generated by cleaning the first cleaning brush are conveniently separated from the supporting piece from the material leakage opening by utilizing the arrangement of the material leakage opening, so that the cleaning efficiency and the cleaning effect are improved.

In some possible embodiments, the weep hole is offset to a side of the cleaning surface in the X-direction that is adjacent to the body.

In the realization process, the material leakage opening is biased at one side, close to the body, of the cleaning surface in the X direction, so that cleaned dust can fall from the material leakage opening directly, and the cleaning brush cannot be in contact with the first cleaning brush in a clinging manner, so that the cleanliness of the first cleaning brush is improved.

In some possible embodiments, the buffer mechanism is provided with a limit assembly comprising: a sliding block and a telescopic plate; the sliding block is slidably arranged on the inner side wall of the body along the Z direction; one end of the expansion plate along the expansion direction is hinged with the supporting piece, the other end of the expansion plate is hinged with the sliding block, and the expansion plate is configured to normally stretch.

In the implementation process, the buffer mechanism is suitable for placing the battery pieces of different sizes by utilizing the setting of the limiting assembly, and after the battery pieces are conveyed away, the supporting piece deflects, so that the supporting piece can incline the surfaces of the upper side and the lower side of the supporting piece by an angle, and the surface of the supporting piece is thoroughly cleaned.

In some possible embodiments, the expansion plate is hinged to the support via a torsion spring.

In the implementation process, the mode of torsion spring connection is utilized, so that after the battery piece is conveyed away, the expansion plate can automatically recover to the initial position to perform normal expansion.

In some possible embodiments, the support member has a support surface in the Z direction, the support surface being provided with a fitting groove, a bottom wall of the fitting groove being connected to an inner side wall of the body; the torsional spring is arranged in the embedded groove, and when the sliding block moves to the bottom wall of the embedded groove, the telescopic plate is positioned in the embedded groove, and the outer surface of the telescopic plate is not higher than the supporting surface.

In the implementation process, the telescopic plate is conveniently positioned by utilizing the arrangement of the embedded groove, and the storage size of the slot and the size matched battery piece when the limiting component is not arranged can be matched, so that the utilization rate of the slot is improved.

In a second aspect, an embodiment of the present utility model provides a transmission buffer device, which includes the buffer mechanism provided in the first aspect and a conveyor belt, where a conveying direction of the conveyor belt is parallel to the X direction, and a portion of the conveyor belt is located in the accommodating space to output a battery slice.

In some possible embodiments, both edges of the conveyor belt in the Y direction are provided with a second cleaning brush for cleaning the slot.

In the implementation process, the second cleaning brush is utilized to clean the slot of the buffer mechanism in the process of conveying the battery piece, so that the buffer mechanism is favorable for being used in the next cycle, the cleanliness in the slot is good, and impurities are prevented from being introduced to the two edges of the battery piece.

In some possible embodiments, the width of the conveyor belt in the Y direction is L1, the total width of the conveyor belt and the second cleaning brush in the Y direction is L2, the minimum distance between two opposite supporting members in the Y direction is L3, the distance between two inner side walls of the body in the Y direction is L4, L1L 3, L3L 2L 4.

In the realization process, the second cleaning brush can effectively clean the slot in the process of conveying the battery piece, and can be mutually interfered when being contacted with the first cleaning brush, so that impurity residues are avoided, and the cleaning effect is improved.

In some possible embodiments, the battery pack further comprises a lifting mechanism, wherein the lifting mechanism is in transmission connection with the buffer mechanism and is used for driving the buffer mechanism to lift along the Z direction so that the bottom of the battery pack on the support piece is in contact with the conveyor belt and is transferred to the conveyor belt.

In the implementation process, the lifting mechanism is used for driving the buffer mechanism to lift, so that after the conveyor belt outputs a certain battery piece from the buffer mechanism, the lifting mechanism drives the buffer mechanism to sink, the bottom of the battery piece on the upper layer is contacted with the conveyor belt and is output from the buffer mechanism, and the operation is repeated, so that the battery piece temporarily stored in the buffer mechanism can be conveyed in a production line.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a second view angle of a transmission buffer device according to the present utility model;

fig. 2 is a schematic structural diagram of a first view angle of a transmission buffer device according to the present utility model;

FIG. 3 is a schematic diagram illustrating a partial enlarged view of a slot according to the present utility model;

fig. 4 is an assembly schematic diagram of a limiting assembly and a slot provided by the present utility model.

Icon: 1000-transmission buffer means; 10-a caching mechanism; 100-body; 110-accommodating space; 113-outlet; 120-support; 130-slots; 140-a first cleaning brush; 141-a material leakage port; 150-a limiting assembly; 151-a slider; 152-telescoping plates; 154-a guide mechanism; 155-a first spindle; 156-a second spindle; 157-a fitting groove; 20-conveyor belt; 210-a second cleaning brush.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical" and "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, or directions or positional relationships conventionally put in use of the product of the application, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The slots for placing the battery pieces inside the existing buffer mechanism are communicated with the outside and exposed outside, so that foreign particles and dirt outside are easily accumulated in the slots of the buffer mechanism, and when the battery pieces are conveyed to the buffer mechanism, part of dust particles can be brought in, and after long-time deposition, the foreign particles and dirt can be formed in the slots of the buffer mechanism; at this time, when the battery piece in the slot is output from the buffer mechanism, dirt and particle impurities in the slot can be caused to adhere to the surface of the battery piece, if the battery piece is directly subjected to screen printing without cleaning, impurity particles can be squeezed together by screen printing, so that various problems such as screen leakage, explosion and the like are easily caused, and the problem that the battery piece is scratched by friction is also caused.

In view of this, the present utility model has been proposed.

Examples

Referring to fig. 1 and 2, a transmission buffer device 1000 mainly includes a buffer mechanism 10, a conveyor 20, and a lifting mechanism (not shown).

The buffer mechanism 10 is used for buffering the battery piece, part of the conveyor belt 20 is positioned in the buffer mechanism 10, the lifting mechanism is used for being in transmission connection with the buffer mechanism 10, the lifting mechanism is used for driving the buffer mechanism 10 to lift, so that the bottom of the battery piece in the buffer mechanism 10 is contacted with the conveyor belt 20, the battery piece is transferred to the conveyor belt 20 through friction force generated when the battery piece is contacted with the conveyor belt 20, the conveyor belt 2 outputs the battery piece from the buffer mechanism 10, then the lifting mechanism drives the buffer mechanism 10 to continuously descend for one layer, so that the bottom of the battery piece originally positioned above the battery piece is contacted with the conveyor belt 20 and is output from the buffer mechanism 10, and the operation is repeated, so that a plurality of battery pieces temporarily stored in the buffer mechanism 10 can be sequentially transmitted to the screen printing production line.

In this embodiment, the battery sheet refers to a silicon wafer before screen printing is required.

Referring to fig. 1 and 2, the buffering mechanism 10 includes: a body 100.

The body 100 has a receiving space 110 for receiving the battery sheet, and an outlet 113 for the battery sheet to enter and exit the receiving space 110 in the X direction; the body 100 has a plurality of supporting members 120 for supporting the battery cells arranged along the Z direction at both inner sidewalls of the Y direction, and two adjacent supporting members 120 along the Z direction constitute a slot 130, each supporting member 120 has a cleaning portion protruding from the outlet 113 out of the body 100, the cleaning portion has two cleaning surfaces oppositely arranged along the Z direction, and at least one cleaning surface is provided with a first cleaning brush 140.

Wherein, the X direction, the Y direction and the Z direction are mutually perpendicular, and the lifting mechanism is used for driving the buffer mechanism 10 to lift along the Z direction.

In the above-mentioned implementation process, on the one hand, the setting of utilizing first cleaning brush 140 can be when taking out the battery piece from buffer memory mechanism 10, utilize the relative movement of battery piece and first cleaning brush 140, clean the both sides reason that the battery piece is arranged in slot 130, get rid of the impurity granule that both sides are attached, avoid the battery piece when carrying out screen printing extrusion in the follow-up, if attach when having great impurity granule at screen printing extrusion in-process, cause the battery piece to be rubbed the fish tail, and the problem such as screen printing thick liquid leakage, explode the version, on the other hand, because first cleaning brush 140 is located outside body 100, consequently, the impurity of clearance can not be swept back in slot 130, influence buffer memory mechanism 10's cleanliness and reuse, and when keeping in buffer memory mechanism 10 with the battery piece, the battery piece is not contacted for a long time with first cleaning brush 140, only contact in output in the in-process, the battery piece edge damage that the long-time contact leads to can be avoided.

The body 100 may be a frame or a box.

The cleaning part is arranged at the outlet 113, so that the edge of each battery piece can be fully and completely cleaned, and the cleaning effect is improved.

The support 120 includes, but is not limited to, a support plate having a distance 2 times smaller than a distance between two inner sidewalls of the body 100 in the Y direction, that is, a gap is provided between the corresponding support plates on the two inner sidewalls.

Optionally, two cleaning surfaces of each cleaning part are respectively provided with a first cleaning brush 140, so that impurities on the upper and lower edges of the battery piece can be cleaned synchronously, the cleaning effect is better, and the problems of slurry leakage, plate explosion and friction scratch of the battery piece of the screen printing plate are solved.

The outlet 113 is used for outputting the battery sheet to the accommodating space 110 along the X direction, wherein the conveying direction of the conveyor belt 20 is parallel to the X direction. The accommodating space 110 is provided with only one opening, wherein the opening is formed on any side of the body 100 in the X direction, and the opening is used as an outlet 113 and an outlet 113 for the battery piece to enter the body 100.

In this embodiment, the accommodating space 110 is provided with two openings, which are respectively disposed on two sides of the body 100 in the X direction and are respectively used as the inlet and the outlet 113, and the conveyor belt 20 sequentially passes through the inlet and the outlet 113.

Because the buffer gear 10 gradually descends in the production process to place the battery piece on the conveyor belt 20 so as to realize the rapid conveying of the battery piece, the battery piece is convenient to download by utilizing the arrangement of the two openings, and the conveying efficiency can be effectively improved.

Referring to fig. 2 and 3, the cleaning portion is provided with a material leakage port 141 penetrating through two cleaning surfaces.

With the arrangement of the weep hole 141, impurity particles generated by the cleaning of the first cleaning brush 140 are separated from the supporting member 120 from the weep hole 141, thereby improving cleaning efficiency and effect.

The drain port 141 may be offset to a side of the cleaning surface in the X direction close to the body 100, may be offset to a side of the cleaning portion in the X direction away from the body 100, or may be located at the center of the cleaning portion in the X direction.

Since the displacement direction of the conveyor belt 20 is along the X direction, the battery plate is transported outwards from the inner side of the body 100, and thus the pulling force generated during the transportation of the conveyor belt 20 can cause the dust to float inwards, in this embodiment, the material leakage port 141 is biased to the side of the cleaning surface close to the body 100 in the X direction.

The dust which is beneficial to being cleaned directly falls from the material leakage hole 141 and can not directly contact with the first cleaning brush 140 in the slot 130 where the conveyed battery piece is positioned, thereby improving the cleanliness of the first cleaning brush 140.

In some embodiments, referring to fig. 3 and 4, the buffer mechanism 10 is provided with a limiting assembly 150, and the limiting assembly 150 includes a slider 151 and a telescopic plate 152. The slider 151 is slidably disposed on the inner sidewall of the body 100 along the Z direction; one end of the expansion plate 152 in the expansion direction is hinged to the support 120, and the other end is hinged to the slider 151, and the expansion plate 152 is configured to normally extend.

The expansion plate 152 has two states of expansion and compression, and is normally in its free state (state in which no external pressure is applied), it being understood that the expansion plate 152 is configured to be normally expanded, that is, when no battery cells are placed in the socket 130, the expansion plate 152 is obliquely disposed in the socket 130.

At this time, when the battery piece is put into the slot 130, the expansion plate 152 which is arranged in an inclined manner is pressed by the battery piece and uses the hinge joint of the support piece 120 as a rotation pivot, and deflects to one side close to the support piece 120 (that is, the inclination angle between the expansion plate 152 and the support piece 120 is gradually reduced), so that the battery piece can be put into the slot 130, if the two sides of the battery piece cannot be completely matched with the depth of the slot 130 in the Y direction, a gap is reserved between the battery piece and the two sides of the slot 130 in the Y direction, and as the expansion plate 152 is configured to be normally stretched, the expansion plate 152 is always forced to abut against the two edges of the battery piece after the battery piece is put into the slot 130 by using a restoring force, so as to clamp the battery piece by applying force, thereby avoiding certain deflection and affecting the conveying of the battery piece. The expansion plate 152 can move along the Z direction because of the sliding block 151, so that the expansion plate 152 is integrally deflected and the expansion plate 152 stretches to match with the sliding of the sliding block 151, and the sliding block 151 can scrape the inner wall of the slot 130 in the Y direction in the sliding process, thereby scraping off the impurity particles and dirt attached to the surface, being beneficial to being cleaned out subsequently and improving the cleaning effect.

By means of the arrangement of the limiting assembly 150, when the battery piece is placed in the slot 130, the limiting assembly 150 can be extruded to deflect, and the battery piece with different sizes can be abutted against the two edges of the battery piece with different sizes through the deflection of the limiting assembly 150, so that the battery piece placement device is suitable for placement of the battery pieces with different sizes; because the expansion plate 152 is configured to be normally extended, after the battery piece is conveyed away, the supporting piece 120 deflects to enable the upper side surface and the lower side surface of the supporting piece 120 to be inclined by an angle, so that the surface of the supporting piece 120 is thoroughly cleaned; and in the process that the spacing subassembly 150 deflects, the slider 151 slides at the inside wall of body 100 along the Z direction, and its in-process that slides can scrape the inner wall of draw-in groove 130 in the Y direction, scrapes impurity particle and dirt attached to the surface off, is favorable to the follow-up being cleared up, improves clean effect.

Wherein the expansion plate 152 is hinged with the support 120 via a torsion spring.

By means of the torsion springs, after the battery pieces are conveyed away from the buffer mechanism 10, reset force is provided for the telescopic plates 152, and the telescopic plates 152 can automatically recover to be in the initial position and normally stretch.

In order to realize that the sliding block 151 is slidably disposed on the inner sidewall of the body 100 along the Z direction, optionally, the inner sidewall of the body 100 is provided with a guiding mechanism 154 along the Z direction, the guiding mechanism 154 is a guiding groove or a guiding rail, and the sliding block 151 is slidably matched with the guiding mechanism 154 along the Z direction.

Alternatively, the support 120 is provided with a first rotation shaft 155, the first rotation shaft 155 is hinged to the support 120 via a torsion spring, the expansion plate 152 is hinged to the first rotation shaft 155, the slider 151 is provided with a second rotation shaft 156, and the expansion plate 152 is hinged to the second rotation shaft 156.

Wherein, the supporting member 120 has a supporting surface in the Z direction, the supporting surface is provided with a fitting groove 157, and the bottom wall of the fitting groove 157 is connected with the inner side wall of the body 100; the torsion spring is disposed in the engaging groove 157, and when the slider 151 moves to the bottom wall of the engaging groove 157, the expansion plate 152 is disposed in the engaging groove 157, and the outer surface of the expansion plate 152 is not higher than the supporting surface.

By means of the arrangement of the embedded grooves 157, the telescopic plates 152 can be conveniently positioned, the battery pieces with the sizes matched with those of the slots 130 when the limiting assemblies 150 are not arranged can be stored, and the utilization rate of the slots 130 is improved.

When the supporting surface is provided with the engaging groove 157, the first rotating shaft 155 is located in the engaging groove 157.

Referring to fig. 1 and 2, a second cleaning brush 210 for cleaning the slot 130 is provided at both edges of the conveyor belt 20 in the Y direction.

By using the second cleaning brush 210, the slot 130 can be effectively cleaned, so as to avoid deposition of dirt and particle impurities in the slot 130, and prevent the impurities from adhering to the surface of the battery plate when the buffer mechanism 10 is reused, and besides, the clearance can be better cleaned by contact with the second cleaning brush 210 due to the arrangement of the angle of the limit assembly 150 after deflection.

Since the conveyor belt 20 is in a belt shape, the second cleaning brush 210 is a brush bar provided along an edge of the conveyor belt 20.

Wherein the width of the conveyor belt 20 in the Y direction is L1, the total width of the conveyor belt 20 and the second cleaning brush 210 in the Y direction is L2, the minimum distance between the two opposite supporting members 120 in the Y direction is L3, the distance between the two sidewalls of the body 100 in the Y direction is L4, L1 is L3, L3 is L2 is L4.

With the above arrangement, when the buffer mechanism 10 moves down, the second cleaning brush 210 can be pushed into the slot 130 of the upper layer, and the second cleaning brush 210 is beneficial to cleaning the slot 130 where it is located because the conveyor belt 20 continuously rotates to transfer the battery, so that the dust and impurities in the slot 130 can be cleaned out, the dust and impurities can not be accumulated on the surface of the battery in the slot 130 in the subsequent use, and the second cleaning brush 210 can interfere with the first cleaning brush 140 when contacting, so that the impurity particles on the second cleaning brush 210 can be cleaned without excessive residues.

In summary, the buffer mechanism and the transmission buffer device provided by the utility model can solve the problems of screen printing slurry leakage, screen printing explosion and friction scratch of the battery piece when the battery piece temporarily stored by the buffer mechanism is subjected to screen printing.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A caching mechanism, comprising:

the battery pack comprises a body, a battery pack and a control unit, wherein the body is provided with a containing space for containing a battery pack and an outlet for outputting the battery pack from the containing space along the X direction;

the body has respectively along the support piece of Z direction a plurality of being used for of arrangement of two inside walls of Y direction support piece, and Z direction is adjacent two support piece constitutes the slot, every support piece has from the export stretches out the cleaning part of body, the cleaning part has along two cleaning surfaces of Z direction relative arrangement, at least one the cleaning surface is equipped with first cleaning brush.

2. The buffer mechanism according to claim 1, wherein the cleaning portion is provided with a weep hole penetrating both of the cleaning surfaces.

3. The buffer mechanism according to claim 2, wherein the weep hole is offset to a side of the cleaning surface that is adjacent to the body in the X-direction.

4. The caching mechanism of claim 1, wherein the caching mechanism is provided with a limit assembly, the limit assembly comprising:

the sliding block is slidably arranged on the inner side wall of the body along the Z direction; and

and one end of the expansion plate along the expansion direction is hinged with the supporting piece, the other end of the expansion plate is hinged with the sliding block, and the expansion plate is configured to normally stretch.

5. The caching mechanism of claim 4, wherein the telescoping plate is hinged to the support via a torsion spring.

6. The buffer mechanism according to claim 5, wherein the support member has a support surface in the Z direction, the support surface being provided with a fitting groove, a bottom wall of the fitting groove being connected to an inner side wall of the body;

the torsion spring is arranged in the embedded groove, and when the sliding block moves to the bottom wall of the embedded groove, the expansion plate is positioned in the embedded groove, and the outer surface of the expansion plate is not higher than the supporting surface.

7. A transmission buffer device, characterized by comprising the buffer mechanism of any one of claims 1-6 and a conveyor belt, wherein the conveying direction of the conveyor belt is parallel to the X direction, and a part of the conveyor belt is positioned in the accommodating space to output the battery piece.

8. The transmission buffer device according to claim 7, wherein both edges of the conveyor belt in the Y direction are provided with second cleaning brushes for cleaning the slots.

9. The transmission buffer device according to claim 8, wherein the width of the conveyor belt in the Y direction is L1, the total width of the conveyor belt and the second cleaning brush in the Y direction is L2, the minimum distance between two opposite supporting members in the Y direction is L3, the distance between two inner side walls of the body in the Y direction is L4, L1 is L3, and L3 is L2 is L4.

10. The transport buffer of claim 7 further comprising a lifting mechanism for driving connection with the buffer mechanism, the lifting mechanism for driving the buffer mechanism to lift in the Z direction so that the bottom of the battery sheet on the support is in contact with the conveyor belt and transferred to the conveyor belt.