Vacuum conveying belt adsorption structure and lamination equipment

Abstract

The utility model relates to a vacuum conveying belt adsorption structure and lamination equipment, the vacuum conveying belt adsorption structure comprises a vacuum belt cavity, a first vacuum cavity is formed in the vacuum belt cavity, the vacuum belt cavity is provided with a cover plate, a plurality of second vacuum cavities are arranged on the cover plate, the cover plate is provided with through holes corresponding to the second vacuum cavities, and the first vacuum cavity and the second vacuum cavity are communicated through the through holes. Each second vacuum chamber is communicated with the first vacuum chamber through the corresponding through hole; and the vacuum belt is located on the surface of the cover plate, and adsorption holes are formed in the vacuum belt. According to the vacuum belt, the plurality of second vacuum chambers are arranged on the cover plate, and the second vacuum chambers are communicated to the first vacuum chamber through the through holes, so that vacuum can be distributed to the small second vacuum chambers on the cover plate through the first vacuum chamber, and the adsorption force of the vacuum belt can be uniformly distributed to all positions of the vacuum belt; the technical problems that in the prior art, in the conveying process of the pole pieces, the adsorption uniformity is poor, and the pole pieces are prone to wrinkling are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of new energy lithium battery manufacturing, in particular to a vacuum conveying belt adsorption structure and a lamination device. BACKGROUND

[0002] With the development of the new energy lithium battery industry, the lamination technology in the industry is continuously developing, and models such as cutting and laminating machines and thermal compounding machines use vacuum belts to convey the pole pieces of the batteries.

[0003] In the related art, the commonly used vacuum belt adsorption structure generally uses an aluminum plate to bore and mill a large cavity, and then covers the large cavity with a cover plate. A slot is formed in the cover plate at a position corresponding to the belt for adsorption. The slot penetrates the cover plate from top to bottom, so that the slot is in communication with the large cavity below the cover plate, thereby adsorbing the pole pieces for transmission.

[0004] However, directly forming a slot in the cover plate for the vacuum to pass through, the adsorption uniformity of the pole pieces during transmission is not good, and problems such as wrinkles of the pole pieces are easily caused.

[0005] Therefore, it is necessary to design a new vacuum conveying belt adsorption structure to overcome the above problems. SUMMARY

[0006] The application provides a vacuum conveying belt adsorption structure and a lamination device, which can solve the technical problem of poor adsorption uniformity of the pole pieces during transmission in the related art, which easily causes wrinkles of the pole pieces.

[0007] In a first aspect, the application provides a vacuum conveying belt adsorption structure, which comprises: a vacuum belt cavity, a first vacuum chamber is formed in the vacuum belt cavity, and the vacuum belt cavity has a cover plate, a plurality of second vacuum chambers are arranged on the cover plate, a through hole is formed in the cover plate corresponding to each second vacuum chamber, and each second vacuum chamber is in communication with the first vacuum chamber through the corresponding through hole; and a vacuum belt, which is located on the surface of the cover plate and has an adsorption hole.

[0008] In combination with the first aspect, in an implementation, the inner contour size of the second vacuum chamber is greater than the inner contour size of the through hole and less than the inner contour size of the first vacuum chamber.

[0009] In combination with the first aspect, in an implementation, the second vacuum chamber is recessed from the side of the cover plate close to the vacuum belt to the side away from the vacuum belt, and the second vacuum chamber does not penetrate the cover plate.

[0010] With reference to the first aspect, in an embodiment, the vacuum belt cavity comprises a plurality of bars, a bottom plate and the cover plate, and the plurality of bars, the bottom plate and the cover plate are spliced together to form the first vacuum chamber.

[0011] With reference to the first aspect, in an embodiment, the vacuum belt cavity further comprises a plurality of partitions, and the plurality of partitions are arranged in the first vacuum chamber in a transmission direction of the vacuum belt, so that the plurality of partitions divide the first vacuum chamber into a plurality of sub-chambers, and each of the sub-chambers is in communication with the plurality of second vacuum chambers through the through holes.

[0012] With reference to the first aspect, in an embodiment, the vacuum belt cavity is further provided with a plurality of negative pressure interfaces, and a vacuum pipeline is connected to the negative pressure interfaces, and the vacuum pipeline is in communication with the first vacuum chamber through the negative pressure interfaces.

[0013] With reference to the first aspect, in an embodiment, the first vacuum chamber is provided with an interface at each end in the transmission direction of the vacuum belt, each of the interfaces is provided with two negative pressure interfaces, and the two negative pressure interfaces in each of the interfaces are distributed in a direction perpendicular to the transmission direction of the vacuum belt.

[0014] With reference to the first aspect, in an embodiment, one of the interfaces is provided with a positive pressure interface, and the positive pressure interface is in communication with the first vacuum chamber.

[0015] With reference to the first aspect, in an embodiment, the vacuum belt cavity is fixedly provided with a belt driving assembly, the belt driving assembly is connected to the vacuum belt, and is used to drive the movement of the vacuum belt.

[0016] According to the second aspect, the application provides a laminated sheet device comprising the vacuum conveying belt suction structure.

[0017] The technical scheme provided by the embodiments of the application has the following beneficial effects:

[0018] By arranging a plurality of second vacuum chambers on the cover plate and connecting the second vacuum chambers to the first vacuum chamber through the through holes, the vacuum can be redistributed from the first vacuum chamber to each small second vacuum chamber on the cover plate, so that the suction area is increased, and after the vacuum is stabilized, the suction force of each area of the vacuum belt is less different, so that the suction force of the vacuum belt can be evenly distributed at each position of the vacuum belt, thereby solving the technical problem that the pole piece is not evenly sucked in the transmission process in the related art, which easily causes the pole piece to wrinkle. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0020] Figure 1 A front view of a vacuum conveying belt adsorption structure provided by an embodiment of the present application;

[0021] Figure 2 A top view of a cover plate provided by an embodiment of the present application;

[0022] Figure 3 A bottom view of a vacuum belt cavity provided by an embodiment of the present application.

[0023] In the drawings:

[0024] 1, vacuum belt cavity; 11, cover plate; 111, second vacuum chamber; 112, through hole;

[0025] 12, rod; 13, bottom plate; 14, partition plate; 15, negative pressure interface;

[0026] 2, vacuum belt; 3, vacuum pipeline; 4, handover position; 5, positive pressure interface;

[0027] 6, belt driving assembly. DETAILED DESCRIPTION

[0028] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0029] The embodiments of the present application provide a vacuum conveying belt adsorption structure and a lamination device, which can solve the technical problem of poor adsorption uniformity of the pole piece in the transmission process, which easily causes the pole piece to wrinkle.

[0030] Referring to Figure 1 and Figure 2As shown, the vacuum conveying belt adsorption structure provided by the embodiment of the application comprises a vacuum belt cavity 1, a first vacuum chamber is formed in the vacuum belt cavity 1, and the vacuum belt cavity 1 has a cover plate 11, a plurality of second vacuum chambers 111 are arranged on the cover plate 11, a through hole 112 is formed in the cover plate 11 corresponding to each second vacuum chamber 111, and each second vacuum chamber 111 communicates with the first vacuum chamber through the corresponding through hole 112; and a vacuum belt 2 is located on the surface of the cover plate 11, and the vacuum belt 2 is provided with an adsorption hole.

[0031] As shown in the drawings, Figure 2 In the embodiment, the cover plate 11 is one part of the vacuum belt cavity 1, and the entire vacuum belt cavity 1 can be integrally formed or assembled by a plurality of parts. The cover plate 11 is the top plate of the entire vacuum belt cavity 1, and a plurality of second vacuum chambers 111 are arranged on the upper surface of the cover plate 11 in the horizontal and vertical directions. In the embodiment, the second vacuum chamber 111 is a square groove structure, and in other embodiments, the second vacuum chamber 111 can also have other structural shapes, which are not limited herein. In the embodiment, a through hole 112 is formed in the cover plate 11 below each second vacuum chamber 111, and the through hole 112 can have any shape, and in the embodiment, the through hole 112 is preferably circular. The through hole 112 is located at the center of the second vacuum chamber 111, and each through hole 112 corresponds to a second vacuum chamber 111. The vacuum belt 2 is located on the upper surface of the cover plate 11, and the adsorption hole on the vacuum belt 2 communicates with the second vacuum chamber 111.

[0032] In the embodiment, a plurality of second vacuum chambers 111 are arranged on the cover plate 11, and the second vacuum chambers 111 communicate with the first vacuum chamber through the through holes 112. Vacuum can be distributed to each small second vacuum chamber 111 on the cover plate 11 through the first vacuum chamber and the through holes 112, so that the vacuum is converted from a large chamber to each small chamber, the adsorption area is increased, and after the vacuum is stable, the adsorption force of each area of the vacuum belt 2 is relatively small compared with the adsorption force of the cover plate slotting mode, so that the adsorption force of the vacuum belt 2 can be relatively uniformly distributed at each position of the vacuum belt 2, thereby solving the technical problem that the pole piece is not evenly adsorbed during transmission in the related art, which easily causes the pole piece to wrinkle.

[0033] At the same time, according to different types of products, some second vacuum chambers 111 on the cover plate 11 can be plugged, which can adapt to products of various sizes, and can also increase the adsorption force of the entire vacuum belt 2 by plugging the second vacuum chambers 111.

[0034] As shown in the drawings, Figure 2As shown, in an embodiment, the inner contour size of the second vacuum chamber 111 is greater than the inner contour size of the through hole 112 and smaller than the inner contour size of the first vacuum chamber. In this embodiment, the cross section of the second vacuum chamber 111 is preferably square, the cross section of the through hole 112 is preferably circular, the side length of the second vacuum chamber 111 is greater than the diameter of the through hole 112, the first vacuum chamber is a long rectangle, and the volume and inner contour size of the first vacuum chamber are larger, and in comparison, the volume and inner contour size of the second vacuum chamber 111 and the through hole 112 are much smaller than the first vacuum chamber. The surface of the cover plate 11 is uniformly distributed with many small second vacuum chambers 111, so that the vacuum can be uniformly distributed on the surface of the cover plate 11.

[0035] Further, in an embodiment, the second vacuum chamber 111 is recessed from the side of the cover plate 11 close to the vacuum belt 2 to the side away from the vacuum belt 2, and the second vacuum chamber 111 does not penetrate the cover plate 11. In this embodiment, the second vacuum chamber 111 is recessed downward from the upper surface of the cover plate 11, and the second vacuum chamber 111 does not penetrate the lower surface of the cover plate 11, so that the second vacuum chamber 111 forms a pit structure, and the vacuum can be uniformly distributed in the second vacuum chamber 111.

[0036] Referring to Figure 3 As shown, in some optional embodiments, the vacuum belt cavity 1 includes a plurality of rod members 12, a bottom plate 13, and the cover plate 11, and the plurality of rod members 12, the bottom plate 13, and the cover plate 11 are spliced together to form the first vacuum chamber. In this embodiment, four rod members 12 are preferably provided, and the four rod members 12 are connected end to end to form a square frame structure. The bottom plate 13 is arranged on the bottom surface of the square frame structure to block the bottom opening of the square frame structure, and the cover plate 11 is arranged on the top surface of the square frame structure to block the top opening of the square frame structure, so that the four rod members 12, the bottom plate 13, and the cover plate 11 can form the first vacuum chamber. At the same time, the rod members 12, the bottom plate 13, and the cover plate 11 in this embodiment are preferably connected by bolts, and compared with the related art in which the first vacuum chamber is made of an aluminum plate by boring and milling, the first vacuum chamber in this embodiment is formed by splicing multiple parts, so that the processing cost is lower.

[0037] Further, in an embodiment, the vacuum belt cavity 1 further comprises a plurality of partitions 14, which are arranged in the first vacuum chamber along the transmission direction of the vacuum belt 2, so that the plurality of partitions 14 divides the first vacuum chamber into a plurality of sub-chambers, and each of the sub-chambers is in communication with the plurality of second vacuum chambers 111 through the through holes 112. In this embodiment, four partitions 14 are preferably arranged in the first vacuum chamber, which divides the entire first vacuum chamber into five sub-chambers, and the vacuum is distributed to the second vacuum chambers 111 of the cover plate 11 through the plurality of sub-chambers, so that the vacuum adsorption force is larger, and the adsorption effect is better.

[0038] Referring to Figure 3 In some embodiments, the vacuum belt cavity 1 is further provided with a plurality of negative pressure interfaces 15, and the vacuum pipeline 3 is connected to the negative pressure interfaces 15, and the vacuum pipeline 3 is in communication with the first vacuum chamber through the negative pressure interfaces 15. In this embodiment, a plurality of negative pressure interfaces 15 are arranged in each sub-chamber, Figure 3 As shown in the sub-chamber, two negative pressure interfaces 15 are arranged in some sub-chambers, and three negative pressure interfaces 15 are arranged in some sub-chambers, and the number of negative pressure interfaces 15 can be set according to the size of the sub-chamber. In this embodiment, the vacuum pipeline 3 is connected to the negative pressure interface 15, and the vacuum pipeline 3 can provide vacuum for each sub-chamber (i.e. the first vacuum chamber). The negative pressure interface 15 in this embodiment is arranged on the bottom plate 13.

[0039] On the basis of the above technical solutions, referring to Figure 3 As shown, the first vacuum chamber is provided with an interface position 4 at both ends along the transmission direction of the vacuum belt 2, each interface position 4 is provided with two negative pressure interfaces 15, and the two negative pressure interfaces 15 in each interface position 4 are distributed perpendicular to the transmission direction of the vacuum belt 2. In this embodiment, the sub-chambers at the left and right ends of the first vacuum chamber form an interface position 4, and two negative pressure interfaces 15 are arranged opposite to each other in each interface position 4, so that the vacuum flow of the two negative pressure interfaces 15 in each interface position 4 can be adjusted to make the interface between the vacuum belts 2 more smooth.

[0040] Further, in an embodiment, one of the interface positions 4 is provided with a positive pressure interface 5, which is in communication with the first vacuum chamber. Referring to Figure 3 As shown, a plurality of positive pressure interfaces 5 are arranged in the interface position 4 at the left end in this embodiment, and the plurality of positive pressure interfaces 5 are in communication with the corresponding sub-chamber at this position, and the positive pressure interface 5 can connect the positive pressure air, which is convenient for taking the pole piece at this position.

[0041] Referring to Figure 1As shown, in some embodiments, the vacuum belt cavity 1 is fixed with a belt driving assembly 6, the belt driving assembly 6 is connected with the vacuum belt 2 and is used to drive the vacuum belt 2 to move. In this embodiment, the belt driving assembly 6 is fixed below the vacuum belt cavity 1, and the belt driving assembly 6 can drive the vacuum belt 2 to move on the vacuum belt cavity 1, so as to realize the adsorption of the pole piece and the transmission of the pole piece.

[0042] The embodiment of the present application also provides a lamination device, which comprises the vacuum conveying belt adsorption structure described above. The vacuum conveying belt adsorption structure in the embodiment can adopt the vacuum conveying belt adsorption structure provided in any of the above embodiments and realize the corresponding functions, which will not be described here again. The lamination device in the embodiment can be a cutting and laminating machine or a hot laminating machine or any other device that needs to use the vacuum conveying belt adsorption structure.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] It should be noted that in the present application, relational terms such as "first" and "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0045] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A vacuum conveyor belt adsorption structure, characterized in that: It includes: A vacuum belt cavity (1), wherein a first vacuum chamber is formed in the vacuum belt cavity (1), and the vacuum belt cavity (1) has a cover plate (11), a plurality of second vacuum chambers (111) are arranged on the cover plate (11), and the cover plate (11) is provided with a through hole (112) corresponding to each second vacuum chamber (111), and each second vacuum chamber (111) is connected to the first vacuum chamber through the corresponding through hole (112); A vacuum belt (2) is located on the surface of the cover plate (11), and the vacuum belt (2) is provided with adsorption holes.

2. The vacuum conveyor belt adsorption structure according to claim 1, characterized in that: The inner contour size of the second vacuum chamber (111) is larger than the inner contour size of the through hole (112), and smaller than the inner contour size of the first vacuum chamber.

3. The vacuum conveyor belt adsorption structure according to claim 1, characterized in that: The second vacuum chamber (111) is formed by being recessed from a side of the cover plate (11) close to the vacuum belt (2) toward a side away from the vacuum belt (2), and the second vacuum chamber (111) does not penetrate the cover plate (11).

4. The vacuum conveyor belt adsorption structure according to claim 1, characterized in that: The vacuum belt chamber (1) comprises a plurality of rods (12), a bottom plate (13) and the cover plate (11); the plurality of rods (12), the bottom plate (13) and the cover plate (11) are spliced ​​together to form the first vacuum chamber.

5. The vacuum conveyor belt adsorption structure according to claim 4, characterized in that: The vacuum belt chamber (1) further comprises a plurality of partitions (14), wherein the plurality of partitions (14) are arranged at intervals in the first vacuum chamber along the transmission direction of the vacuum belt (2), so that the plurality of partitions (14) divide the first vacuum chamber into a plurality of sub-chambers, and each of the sub-chambers is connected to the plurality of second vacuum chambers (111) via the through holes (112).

6. The vacuum conveyor belt adsorption structure according to claim 1, characterized in that: The vacuum belt cavity (1) is further provided with a plurality of negative pressure interfaces (15), the negative pressure interfaces (15) being connected to vacuum pipelines (3), and the vacuum pipelines (3) being communicated with the first vacuum chamber via the negative pressure interfaces (15).

7. The vacuum conveyor belt adsorption structure according to claim 6, characterized in that: The first vacuum chamber is provided with junctions (4) at both ends along the transmission direction of the vacuum belt (2), each of the junctions (4) is provided with two negative pressure interfaces (15), and the two negative pressure interfaces (15) in each of the junctions (4) are distributed perpendicular to the transmission direction of the vacuum belt (2).

8. The vacuum conveyor belt adsorption structure according to claim 7, characterized in that: A positive pressure interface (5) is provided in one of the junction positions (4), and the positive pressure interface (5) is communicated with the first vacuum chamber.

9. The vacuum conveyor belt adsorption structure according to claim 1, characterized in that: The vacuum belt cavity (1) is fixedly provided with a belt drive assembly (6), and the belt drive assembly (6) is connected to the vacuum belt (2) and is used to drive the vacuum belt (2) to move.

10. A lamination device, characterized in that: It comprises the vacuum conveyor belt adsorption structure as claimed in claim 1.

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