CN213936292U

CN213936292U - Battery cell edge sealing device and battery production equipment

Info

Publication number: CN213936292U
Application number: CN202022911429.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-10
Anticipated expiration: 2030-12-07

Abstract

The utility model relates to an electricity core banding device and battery production facility, electricity core are fed earlier to the banding station and make its seal limit be located the centre gripping inslot. An adhesive tape is pasted on one surface of the battery cell in advance, and the adhesive tape is partially suspended and protrudes out of the sealing edge of the battery cell. The clamping groove is clamped tightly, so that the adhesive tape can be tightly attached to the surface of the battery cell. The bending piece moves along the second direction under the driving of the driving assembly, can be in contact with the adhesive tape protruding out of the edge of the battery core and drives the adhesive tape to bend until the adhesive tape is integrally formed at about 90 degrees. Then, the clamping groove is opened, the bending piece is driven by the driving assembly to push along the third direction, and the adhesive tape is folded in a U shape. Finally, the bending piece resets and the clamping groove clamps again, so that the U-shaped adhesive tape can be tightly pressed on two surfaces of the battery cell. Therefore, the adhesive tape can reliably cover the seal edge, and the quality of the battery cell is improved.

Description

Battery cell edge sealing device and battery production equipment

Technical Field

The utility model relates to a battery processing technology field, in particular to electricity core banding device and battery production facility.

Background

In the production and processing process of the battery, an adhesive tape needs to be adhered to the seal edge of the battery core. Moreover, the adhesive tape is bent to be U-shaped and is tightly attached to the upper surface and the lower surface of the battery cell, so that the sealing edge of the battery cell can be better coated. However, the existing tape sticking mechanism cannot make the tape reliably stick to the surface of the battery cell, so that the quality of the battery cell is affected.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a cell edge sealing device and a battery production apparatus, which can improve the quality of a cell.

A cell edge sealing device (100) comprising:

a riser (110);

the clamping mechanism (120) is arranged on the vertical plate (110), a clamping groove (101) extending along a first direction is formed in the clamping mechanism (120), and the clamping groove (101) can clamp the sealing edge of the battery cell along a second direction perpendicular to the first direction; and

the folding mechanism (130) is mounted on the vertical plate (110), the folding mechanism (130) comprises a driving component (131) and a bending piece (132), and the driving component (131) can drive the bending piece (132) to move along the second direction and the third direction;

wherein the third direction moves perpendicular to the first direction and the second direction.

In one embodiment, the clamping mechanism (120) comprises:

a first driver (121) and a second driver (122) which are provided on the vertical plate (110) and can be driven in the second direction;

the first pressing plate (123) and the second pressing plate (124) are oppositely arranged along the second direction to form the clamping groove (101), and the first pressing plate (123) and the second pressing plate (124) are fixedly arranged at the driving ends of the first driving piece (121) and the second driving piece (122) respectively.

In one embodiment, the first platen (123) and the second platen (124) are slidably mounted to the riser (110) along the second direction.

In one embodiment, the drive assembly (131) comprises:

a mounting plate (1311) on which the riser (110) is slidably disposed in the second direction;

a third driving piece (1312) arranged on the vertical plate (110) and capable of driving along the second direction, wherein the mounting plate (1311) is fixedly arranged at the driving end of the third driving piece (1312);

and the fourth driving piece (1313) is arranged on the mounting plate (1311) and can be driven along the third direction, and the bending piece (132) is fixedly arranged at the driving end of the fourth driving piece (1313).

In one embodiment, the bending piece (132) is slidably mounted to the mounting plate (1311) along the third direction.

In one embodiment, the fixing device further comprises a mounting seat (140), the vertical plate (110) is slidably arranged on the mounting seat (140) along the second direction, a locking member (141) is arranged on the mounting seat (140), and the locking member (141) can position the vertical plate (110) on the mounting seat (140).

In one embodiment, the device further comprises an adjusting mechanism (150), and the mounting seat (140) is arranged on the adjusting mechanism (150) and can move along the third direction under the driving of the adjusting mechanism (150).

In one embodiment, the adjustment mechanism (150) comprises:

a base plate (151), wherein the mounting seat (140) is slidably arranged on the base plate (151) along the third direction;

and the electric screw rod (152) extends along the third direction and is in threaded connection with the mounting seat (140).

In one embodiment, the clamping mechanism (120) and the folding mechanism (130) are respectively arranged on two opposite surfaces of the vertical plate (110).

A battery production apparatus comprising:

the carrier (200) is used for carrying the battery cell and suspending two opposite sealing edges of the battery cell, and the carrier (200) can drive the battery cell to feed to the sealing edge station;

the cell edge sealing device (100) according to any one of the above preferred embodiments is disposed at two sides of the edge sealing station along the third direction, and when the cell is fed to the edge sealing station, the two sealing edges are respectively located in the clamping grooves (101) of the cell edge sealing device (100) at the two sides.

Above-mentioned electricity core banding device and battery production facility, electricity core are fed earlier to the banding station and make its seal limit be located the centre gripping inslot. An adhesive tape is pasted on one surface of the battery cell in advance, and the adhesive tape is partially suspended and protrudes out of the sealing edge of the battery cell. The clamping groove is clamped tightly, so that the adhesive tape can be tightly attached to the surface of the battery cell. The bending piece moves along the second direction under the driving of the driving assembly, can be in contact with the adhesive tape protruding out of the edge of the battery core and drives the adhesive tape to bend until the adhesive tape is integrally formed at about 90 degrees. Then, the clamping groove is opened, the bending piece is driven by the driving assembly to push along the third direction, and the adhesive tape is folded in a U shape. Finally, the bending piece resets and the clamping groove clamps again, so that the U-shaped adhesive tape can be tightly pressed on two surfaces of the battery cell. Therefore, the adhesive tape can reliably cover the seal edge, and the quality of the battery cell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of a battery production facility according to a preferred embodiment of the present invention;

fig. 2 is a front view of a cell edge banding apparatus in a preferred embodiment of the present invention;

fig. 3 is a top view of the cell edge banding apparatus shown in fig. 2;

fig. 4 is a left side view of the cell edge banding apparatus shown in fig. 2;

fig. 5 is a scene schematic diagram of the encapsulation operation performed on the battery cell by the battery cell edge sealing device shown in fig. 2.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, the present invention provides a battery production apparatus 10 and a cell edge sealing device 100. The battery production apparatus 10 includes a cell edge sealing device 100 and a carrier 200.

The battery production apparatus 10 is provided with a plurality of stations, and is capable of performing a corresponding production process at each station. Wherein, including the banding station in a plurality of stations, can accomplish the banding to electric core 20 at the banding station. Carrier 200 is used for bearing electric core 20 to can drive electric core 200 and feed to banding station. The carrier 200 suspends two opposite sealing edges of the battery cell 20, so as to facilitate the encapsulation operation on the sealing edges. Specifically, the width of the carrier 200 is smaller than the width of the battery cell 20, so the edge of the battery cell 20 is exposed outside the range of the carrier 200.

The edge sealing for the cell 20 is performed by the cell edge sealing device 100. Moreover, the cell edge sealing devices 100 are distributed on both sides of the edge sealing station in the width direction. Therefore, after the battery cell 200 is fed to the edge sealing station, the two sealing edges can be simultaneously encapsulated by the battery cell edge sealing devices 100 on the two sides, so that the processing efficiency is remarkably improved.

Referring to fig. 2 to 4, the cell edge sealing device 100 according to the preferred embodiment of the present invention includes a vertical plate 110, a clamping mechanism 120, and a folding mechanism 130.

The risers 110 are in the form of a generally sheet metal structure that supports the structure. The clamping mechanism 120 and the folding mechanism 130 are disposed on the vertical plate 110. Specifically, in the present embodiment, the clamping mechanism 120 and the folding mechanism 130 are respectively disposed on two opposite surfaces of the vertical plate 110. Thus, the weight of the clamping mechanism 120 and the folding mechanism 130 can be distributed more evenly on the vertical plate 110, which is beneficial to maintaining the stability of the vertical plate 110.

The clamping mechanism 120 is formed with a clamping groove 101 extending in a first direction, and the clamping groove 101 can be clamped or unclamped. When the battery cell 20 is fed to the edge sealing station, two opposite sealing edges enter the clamping grooves 101 of the battery cell edge sealing device 100 on two sides of the edge sealing station respectively. The first direction refers to an extending direction of the seal edge of the battery cell 20, i.e., a direction perpendicular to the plane of the drawing sheet shown in fig. 2.

Also, the clamping groove 101 can clamp the seal edge of the battery cell 20 in a second direction perpendicular to the first direction. The second direction refers to the thickness direction of the battery cells 20, i.e., the vertical direction shown in fig. 2. Before the battery cell 20 is fed to the edge sealing station, the tape 30 may be applied in a previous step, the tape 30 may be applied to the upper surface or the lower surface of the sealing edge of the battery cell 20 and extend along the sealing edge, and the tape 30 is partially suspended and protrudes from the sealing edge of the battery cell 20. The clamping groove 101 clamps the battery cell 20, so that the adhesive tape 20 can be attached to the surface of the battery cell 20.

In the present embodiment, the clamping mechanism 120 includes a first driving member 121, a second driving member 122, a first pressing plate 123 and a second pressing plate 124.

The first driving member 121 and the second driving member 122 may be an air cylinder or a linear motor. The first driver 121 and the second driver 122 are disposed on the riser 110 and can be driven in a second direction. The first pressing plate 123 and the second pressing plate 124 are disposed opposite to each other in the second direction. Accordingly, the clamping groove 101 may be formed between the first and second

pressing plates

123 and 124. The first pressing plate 123 and the second pressing plate 124 may have a flat rectangular plate structure, so that the inner wall of the clamping groove 101 may be flat. Also, the first and second

pressing plates

123 and 124 may each extend in the first direction, thereby forming the clamping groove 101 extending in the first direction.

The first pressing plate 123 and the second pressing plate 124 are respectively and fixedly disposed at the driving ends of the first driving member 121 and the second driving member 122. Accordingly, the first and second

pressing plates

123 and 124 may be moved toward or away from each other by the first and second driving

members

121 and 122, thereby clamping or unclamping the clamping groove 101.

In addition, since the first pressing plate 123 and the second pressing plate 124 are driven by the first driving member 121 and the second driving member 122, the movement processes of the first pressing plate 123 and the second pressing plate 124 are independent and do not interfere with each other.

It should be noted that in other embodiments, the clamping groove 101 may be clamped or unclamped by actuation of a single actuator.

Further, in the present embodiment, the first pressing plate 123 and the second pressing plate 124 are slidably mounted to the vertical plate 110 along the second direction.

Specifically, the first presser 123 and the second presser 124 may be mounted to the riser 110 by a wire-track slider structure. Therefore, when the first pressing plate 123 and the second pressing plate 124 are driven by the first driving element 121 and the second driving element 122 to slide along the second direction, the vertical plate 110 can limit and guide the first pressing plate 123 and the second pressing plate 124, so that the sliding process of the first pressing plate 123 and the second pressing plate 124 is more stable.

The folding mechanism 130 includes a driving assembly 131 and a bending member 132. The driving component 131 can drive the bending piece 132 to move along the second direction and the third direction; the third direction is perpendicular to the first direction and the second direction. The third direction refers to the width direction of the battery cell 120 and the edge sealing station, i.e., the horizontal direction shown in fig. 2. Under the driving of the driving assembly 131, the motion track of the bending member 132 is substantially L-shaped.

The bending member 132 may have a plate-like or column-like structure and is disposed on the outer edge of the clamping groove 101. Therefore, when the bending member 132 acts, it can contact the adhesive tape 30 protruding from the sealing edge of the battery cell 20 and drive the adhesive tape 30 to move according to the predetermined track. In order to increase the contact area between the bending plate 132 and the adhesive tape 30, the reliability is improved. Specifically, in the embodiment, the bending member 132 is plate-shaped, and a surface of the bending member 132 contacting the adhesive tape 30 is perpendicular to the second direction.

In the present embodiment, the driving assembly 131 includes a mounting plate 1311, a third driving member 1312 and a fourth driving member 1313. Wherein:

the mounting plate 1311 slidably disposes the riser 110 in the second direction. Specifically, the mounting plate 1311 can be mounted by a wire-rail slider structure so that sliding is more stable due to the riser 110. The third and

fourth drivers

1312 and 1313 may be cylinders or linear motors. The third driver 1312 is provided on the vertical plate 110 and can be driven in the second direction, and the mounting plate 1311 is fixedly provided at a driving end of the third driver 1312. The fourth driving member 1313 is disposed on the mounting plate 1311 and can be driven in the third direction, and the bending member 132 is fixedly disposed at a driving end of the fourth driving member 1313.

The third driving element 1312 operates to drive the mounting plate 1311, the fourth driving element 1313 provided on the mounting plate 1311, and the bending element 132 provided at the driving end of the fourth driving element 1313 to move in the second direction. Then, the fourth driving component 1313 can drive the bending component 132 to move along the third direction. Thus, the bending member 132 can move in both the second direction and the third direction.

It should be noted that in other embodiments, the driving assembly 131 may be replaced by a robot having the degrees of freedom in the second direction and the third direction.

Further, in the present embodiment, the bending member 132 is slidably mounted to the mounting plate 1311 along the third direction.

Specifically, the bending member 132 can be mounted to the mounting plate 1311 by a wire-track slider structure. Therefore, when the bending member 132 slides along the third direction under the driving of the fourth driving member 1313, the mounting plate 1311 can limit and guide the bending member 132, so that the sliding process of the bending member 132 is more stable.

The edge sealing process of the cell edge sealing device 100 is briefly described below with reference to fig. 5:

as shown in state (a) of fig. 5, an adhesive tape 20 is applied to one of the surfaces (e.g., the upper surface) of the sealed edge of the battery cell 20, and the battery cell 20 is fed to the sealing station, such that the sealed edge is located in the clamping groove 101; as shown in state (b) of fig. 5, the clamping groove 101 clamps the battery cell, so that the adhesive tape 30 is tightly attached to the upper surface of the battery cell 20; as shown in the state (c) of fig. 5, the bending member 132 is driven by the driving assembly 131 to move along the second direction, and drives the adhesive tape 30 to bend until the adhesive tape 30 is at an angle of about 90 degrees. In this process, the clamping groove 101 is always in a clamping state, so that the adhesive tape 30 is not separated from the surface of the battery cell 20 due to the dragging action of the bending piece 132; next, as shown in states (d) and (e) of fig. 5, the holding groove 101 is opened to form a clearance for the bent piece 132. The bending member 132 is driven by the driving assembly 131 to push in a third direction, and the adhesive tape 30 is continuously bent until being adhered to another surface (such as the following surface) of the battery cell 20, so as to implement U-shaped folding of the adhesive tape 30.

Finally, the bending member 132 is reset, and the clamping groove 101 is clamped again, so that the U-shaped adhesive tape 30 can be tightly pressed on the two surfaces of the battery cell 20.

As shown in state (d) of fig. 5, the first pressing plate 123 and the second pressing plate 124 are driven by the first driving member 121 and the second driving member 122, respectively, and the first pressing plate 123 is located above and the second pressing plate 124 is located below. Therefore, when the bending member 132 is pushed in the third direction, the second pressing plate 124 can be driven by the second driving member 122 to move back downward to open the clamping groove 101, while the first pressing plate 123 still remains in contact with the adhesive tape 30. Thus, in the process of realizing the U-shaped folding of the adhesive tape 30, the adhesive tape 30 is not separated from the surface of the battery cell 20 due to the dragging effect of the bending piece 132, and the reliability of the battery cell 20 is further improved.

In this embodiment, the cell edge banding device 100 further includes a mounting seat 140, the riser 110 is slidably disposed on the mounting seat 140 along the second direction, and a locking member 141 is disposed on the mounting seat 140, and the locking member 141 can position the riser 110 on the mounting seat 140.

Specifically, the mounting seat 140 has a substantially L-shaped plate-like structure, and the riser 110 may be mounted on the mounting seat 140 by a wire-rail slider structure. The locking member 141 may be a catch, latch or locking screw. The riser 110 remains fixed relative to the mount 140 when the retaining member 141 is locked. When the thickness of the processed battery cell 20 changes, the locking member 141 is opened, and the position of the vertical plate 110 can be manually adjusted in the second direction so that the position of the clamping groove 101 matches with the battery cell 20. When the position is adjusted to the right position, the locking member 141 is locked again.

Further, in this embodiment, the cell edge sealing device 100 further includes an adjusting mechanism 150, and the mounting base 140 is disposed on the adjusting mechanism 150 and can be driven by the adjusting mechanism 150 to move along the third direction.

When the width of the battery cell 20 to be processed changes, the adjusting mechanism 150 may drive the mounting seat 140, and a vertical plate disposed on the mounting seat 140 wholly moves along the third direction, so as to adjust the relative positions of the clamping grooves 101 of the battery cell edge sealing device 100 located at two sides of the edge sealing station in the third direction, so that the distance between the two clamping grooves 101 matches with the width of the battery cell 20. Thus, the compatibility of the cell edge sealing device 100 can be further improved.

Further, referring to fig. 4 again, in the present embodiment, the adjusting mechanism 150 includes a bottom plate 151 and an electric screw 152. Wherein:

the base plate 151 may have a flat plate-like structure. The mount 140 is slidably provided to the base plate 151 in the third direction. The electric screw 152 extends in the third direction and is screw-coupled with the mount 140. The electric screw 152 rotates to drive the mounting base 140 to slide along the third direction. Moreover, the transmission process of the electric screw 152 is stable, so that the mounting base 140 can be kept stable well in the sliding process.

In addition, the mounting base 140 may be provided to the base plate 151 by a wire rail slider, the wire rail extending in the third direction. The number of the line rails is two, and the two line rails are respectively located at two sides of the electric screw 152. In this manner, the stability of the mount 140 during sliding can be made higher.

In the cell edge sealing device 100 and the battery production apparatus 10, the cell 20 is first fed to the edge sealing station and the sealing edge thereof is located in the clamping groove 101. An adhesive tape 30 is pre-attached to one surface of the battery cell 20, and the adhesive tape 30 is partially suspended and protrudes from the sealing edge of the battery cell 20. The clamping groove 101 clamps tightly, so that the adhesive tape 30 can be tightly attached to the surface of the battery cell 20. The bending member 132 is driven by the driving assembly 131 to move along the second direction, and can contact the adhesive tape 30 protruding from the edge of the battery cell 20 and drive the adhesive tape 30 to bend until the adhesive tape 30 is at about 90 degrees. Then, the clamping groove 101 is opened, and the bending member 132 is driven by the driving assembly 131 to push in the third direction, so that the adhesive tape 30 is folded in a U-shape. Finally, the bending member 132 is reset and the clamping groove 101 is clamped again, so that the U-shaped adhesive tape 30 can be pressed on two surfaces of the battery cell 20. As can be seen, the adhesive tape 30 can reliably cover the seal edge, so that the quality of the battery cell 20 is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cell edge sealing device (100), comprising:

a riser (110);

wherein the third direction is perpendicular to the first direction and the second direction.

2. The cell edge sealing device (100) of claim 1, wherein the clamping mechanism (120) comprises:

3. The cell edge sealing device (100) of claim 2, wherein the first pressure plate (123) and the second pressure plate (124) are slidably mounted to the riser (110) along the second direction.

4. The cell edge sealing device (100) of claim 1, wherein the drive assembly (131) comprises:

5. The cell edge sealing device (100) according to claim 4, wherein the bending member (132) is slidably mounted to the mounting plate (1311) along the third direction.

6. The cell edge sealing device (100) according to claim 1, further comprising a mounting seat (140), wherein the riser (110) is slidably disposed on the mounting seat (140) along the second direction, a locking member (141) is disposed on the mounting seat (140), and the locking member (141) can position the riser (110) on the mounting seat (140).

7. The cell edge sealing device (100) according to claim 6, further comprising an adjusting mechanism (150), wherein the mounting seat (140) is provided on the adjusting mechanism (150) and can be moved in the third direction by being driven by the adjusting mechanism (150).

8. The cell edge sealing device (100) of claim 7, wherein the adjustment mechanism (150) comprises:

9. The cell edge sealing device (100) according to any one of claims 1 to 8, wherein the clamping mechanism (120) and the folding mechanism (130) are respectively disposed on two surfaces of the vertical plate (110) opposite to each other.

10. A battery production apparatus, characterized by comprising:

the cell edge sealing device (100) of any one of claims 1 to 9, which is disposed at two sides of the edge sealing station along the third direction, and when the cell is fed to the edge sealing station, the two sealing edges are respectively located in the clamping grooves (101) of the cell edge sealing device (100) at two sides.