A lamination mechanism

Abstract

A lamination mechanism, in which a sheet feeding track chute, a sheet taking track chute, a first and a second sheet taking assemblies, and a sheet feeding assembly are provided on a frame plate. The first and second sheet taking assemblies both include a sheet taking cam, a sheet taking swing arm, a sheet taking transverse sliding plate, a sheet taking longitudinal sliding plate, a sheet taking suction cup, and a sheet taking driving connection shaft. When the sheet taking cam rotates, it drives the sheet taking swing arm to swing. The sheet feeding assembly includes a sheet feeding cam, a sheet feeding swing arm, a sheet feeding translation sliding plate, a sheet feeding auxiliary driving block, a vertical transition plate, a first and a second sheet feeding units, and a sheet feeding driving connection shaft. When the sheet feeding cam rotates, it drives the sheet feeding swing arm to swing. A sheet feeding unit track chute is provided on the vertical transition plate, and the vertical transition plate and the sheet feeding auxiliary driving block are connected through a sliding rail and chute matching structure. The first and second sheet feeding units both include a sheet feeding longitudinal sliding plate, a sheet feeding suction cup, and a sheet feeding driving connection shaft connecting the sheet feeding longitudinal sliding plate and the vertical transition plate. The driving structure of the present invention is simple and has high efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery manufacturing equipment, and particularly relates to a stacking mechanism in a lithium battery stacker. Background Art

[0002] The battery cores of lithium-ion batteries can be produced by two processes: winding and stacking. The stacking process uses a stacker to alternately stack the cut positive and negative electrode sheets to form a stacked core. The stacker mainly includes a stacking mechanism and a blanking mechanism. The work to be completed by the stacking mechanism is to transport the positive and negative electrode sheets from the conveyor belt to the alignment table, and then from the alignment table to the stacking table, and alternately place the positive and negative electrode sheets on the stacking table to complete the stacking process. The positive and negative electrode sheets are separated by a separator. Currently, most of the stacking mechanisms of stackers use two sets of driving units to transport one electrode sheet, and the process includes the action of transporting the electrode sheet in the vertical direction and the action of transporting the electrode sheet in the horizontal direction. Currently, the stacking mechanism usually uses a cylinder or a motor + lead screw to transport the electrode sheet in the vertical direction, and a linear motor to transport the electrode sheet in the horizontal direction. Through production practice, it is found that when using a cylinder to transport the electrode sheet in the vertical direction, the telescopic action of the cylinder will impact the electrode sheet, thus having an adverse effect on the quality of the electrode sheet. When using a motor-driven lead screw to transport the electrode sheet in the vertical direction, although the impact of the telescopic action of the cylinder on the electrode sheet can be avoided, high-speed operation cannot be achieved, which affects production efficiency. Moreover, the two directions need to be controlled by two sets of driving mechanisms respectively, and the structure and control program are complex, making it difficult to improve the overall efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a stacking mechanism with a simple structure and high efficiency.

[0004] To achieve the above purpose, the present invention adopts the following technical solution:

[0005] A lamination mechanism, comprising: a frame plate, on which a sheet feeding track chute is provided, and a first sheet picking track chute and a second sheet picking track chute symmetrically arranged on both sides of the sheet feeding track chute in the horizontal direction; a first sheet picking assembly arranged on the frame plate, the first sheet picking assembly includes a sheet picking cam, a sheet picking swing arm arranged on the frame plate through a hinge shaft, a sheet picking transverse shifting slide plate movably arranged horizontally on the frame plate, a sheet picking longitudinal shifting slide plate movably arranged vertically on the sheet picking transverse shifting slide plate, a sheet picking suction cup arranged on the sheet picking longitudinal shifting slide plate, and a sheet picking driving connecting shaft connecting the sheet picking swing arm and the sheet picking longitudinal shifting slide plate, the sheet picking driving connecting shaft can slide along the first sheet picking track chute, the sheet picking swing arm is provided with a first cam groove, the sheet picking cam is arranged in the first cam groove, and when the sheet picking cam rotates, it drives the sheet picking swing arm to swing; a second sheet picking assembly arranged on the frame plate, the structure of the second sheet picking assembly is the same as that of the first sheet picking assembly, and the sheet picking driving connecting shaft of the second sheet picking assembly can slide along the second sheet picking track chute; a sheet feeding assembly arranged on the frame plate, the sheet feeding assembly is located between the first sheet picking assembly and the second sheet picking assembly, the sheet feeding assembly includes a sheet feeding cam, a sheet feeding swing arm arranged on the frame plate through a hinge shaft, a sheet feeding translation slide plate movably arranged horizontally on the frame plate, a sheet feeding auxiliary driving block movably arranged vertically on the sheet feeding translation slide plate, a vertical transition plate movably arranged vertically on the frame plate, a first sheet feeding unit and a second sheet feeding unit arranged at intervals in the horizontal direction on the sheet feeding translation slide plate, and a sheet feeding driving connecting shaft connecting the sheet feeding auxiliary driving block and the sheet feeding swing arm, the sheet feeding driving connecting shaft can slide along the sheet feeding track chute, the sheet feeding swing arm is provided with a third cam groove, the sheet feeding cam is arranged in the third cam groove, and when the sheet feeding cam rotates, it drives the sheet feeding swing arm to swing; a sheet feeding unit track chute is arranged on the vertical transition plate, and the vertical transition plate and the sheet feeding auxiliary driving block are connected through a horizontally arranged slide rail chute matching structure; the first sheet feeding unit includes a sheet feeding longitudinal shifting slide plate movably arranged vertically on the sheet feeding translation slide plate, a sheet feeding suction cup arranged on the sheet feeding longitudinal shifting slide plate, and a sheet feeding driving connecting shaft connecting the sheet feeding longitudinal shifting slide plate and the vertical transition plate, the sheet feeding driving connecting shaft can move along the sheet feeding unit track chute; the structure of the second sheet feeding unit is the same as that of the first sheet feeding unit.

[0006] For the lamination mechanism as described above, optionally, both ends of the sheet picking track chute and the sheet feeding track chute extend downward, and the middle extends horizontally; the sheet feeding unit track chute includes upper straight sections at both ends and a lower straight section in the middle, and the upper straight section and the lower straight section are connected by an inclined section, and the straight sections all extend in the horizontal direction.

[0007] For the lamination mechanism described above, optionally, a second cam groove is provided on the sheet taking swing arm, and a first transition cam is provided at the end of the sheet taking drive connection shaft connected to the sheet taking swing arm, and the first transition cam is disposed in the second cam groove; and / or, a fourth cam groove is provided on the sheet feeding swing arm, and a second transition cam is provided at the end of the sheet feeding drive connection shaft connected to the sheet feeding swing arm, and the second transition cam is disposed in the fourth cam groove.

[0008] For the lamination mechanism described above, optionally, the sheet taking swing arm and the sheet taking longitudinal displacement slide plate are respectively located on both sides of the frame plate, the sheet taking swing arm and the sheet taking longitudinal displacement slide plate are connected by a sheet taking drive connection shaft passing through the frame plate, and the sheet taking drive connection shaft slides in the sheet taking trajectory chute through the bearings provided thereon; and / or, the sheet feeding swing arm and the sheet feeding translation slide plate are respectively located on different sides of the frame plate, the sheet feeding swing arm and the sheet taking swing arm are located on the same side of the frame plate, the sheet feeding swing arm and the sheet feeding auxiliary drive block are connected by a sheet feeding drive connection shaft passing through the frame plate, and the sheet feeding drive connection shaft slides in the sheet feeding trajectory chute through the bearings provided thereon.

[0009] For the lamination mechanism described above, optionally, the sheet taking suction cup is arranged on the sheet taking longitudinal displacement slide plate through a sheet taking pneumatic slide table, and the sheet taking pneumatic slide table is arranged on the sheet taking longitudinal displacement slide plate; and / or, the sheet feeding suction cup is arranged on the sheet feeding longitudinal displacement slide plate through a sheet feeding pneumatic slide table, a direct drive rotating motor is arranged at the action end of the sheet feeding pneumatic slide table, and the sheet feeding suction cup is arranged at the output end of the direct drive rotating motor.

[0010] For the lamination mechanism described above, optionally, a sheet feeding transverse slide rail extending in the horizontal direction and a sheet feeding longitudinal slide rail extending in the vertical direction are provided on the frame plate; the sheet feeding translation slide plate is arranged on the sheet feeding transverse slide rail and can move horizontally relative to the frame plate along the sheet feeding transverse slide rail, and the vertical transition plate is arranged on the sheet feeding longitudinal slide rail and can move vertically relative to the frame plate along the sheet feeding longitudinal slide rail.

[0011] For the lamination mechanism described above, optionally, a drive block longitudinal slide rail extending in the vertical direction is provided on the sheet feeding translation slide plate, and the sheet feeding auxiliary drive block is arranged on the drive block longitudinal slide rail and can move up and down along the drive block longitudinal slide rail.

[0012] For the lamination mechanism described above, optionally, first and second longitudinal movement slide rails for the sheet feeding unit extending in the vertical direction are respectively arranged on the left and right sides of the sheet feeding translation slide plate; the sheet feeding longitudinal movement slide plate of the first sheet feeding unit is arranged on the first longitudinal movement slide rail for the sheet feeding unit and can move relative to the sheet feeding translation slide plate in the vertical direction along the first longitudinal movement slide rail for the sheet feeding unit; the sheet feeding longitudinal movement slide plate of the second sheet feeding unit is arranged on the second longitudinal movement slide rail for the sheet feeding unit and can move relative to the sheet feeding translation slide plate in the vertical direction along the second longitudinal movement slide rail for the sheet feeding unit; a sheet feeding transition cam is arranged at the end of the sheet feeding drive connection shaft connected to the vertical transition plate, and the sheet feeding transition cam is arranged in the sheet feeding unit track chute and can slide in the sheet feeding unit track chute.

[0013] For the lamination mechanism described above, optionally, the first sheet feeding unit and the second sheet feeding unit are arranged on both sides of the sheet feeding auxiliary drive block in the horizontal direction.

[0014] For the lamination mechanism described above, optionally, a roller slide rail is arranged on the vertical transition plate, a chute matching the roller slide rail is arranged on the sheet feeding auxiliary drive block, and the sheet feeding auxiliary drive block and the vertical transition plate can move relative to each other along the roller slide rail.

[0015] For the lamination mechanism described above, optionally, a first hollow is arranged on the sheet taking transverse slide plate, and the sheet taking drive connection shaft passes through the first hollow and is connected to the sheet taking longitudinal movement slide plate; and / or, a second hollow is arranged on the sheet feeding translation slide plate, the sheet feeding auxiliary drive block has a connecting portion passing through the second hollow, and after passing through the second hollow, the connecting portion is connected to the sheet feeding drive connection shaft.

[0016] As can be seen from the above technical solutions, the present invention adopts a driving and transmission structure of a cam plus a swing arm to control the actions of the sheet taking assembly and the sheet feeding assembly. Through the pure mechanical constraint of the cam, the displacement of the space curve required for sheet taking and sheet feeding is realized. Compared with the prior art that uses two sets of driving mechanisms for sheet taking and sheet feeding, only one set of driving mechanism is needed to drive the cam and the swing arm to do reciprocating motion, so as to realize the action of transporting the pole piece with different strokes of the pole piece suction cup, simplify the driving structure and control method, improve the system reliability, and also improve the efficiency, and can realize high-speed lamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic diagram of the lamination mechanism according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the lamination mechanism from another angle according to an embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the front of the lamination mechanism according to an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the back of the lamination mechanism according to an embodiment of the present invention.

[0022] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Specific Embodiments

[0023] The present invention will be described in detail below with reference to the accompanying drawings. When describing the embodiments of the present invention in detail, for the convenience of explanation, the drawings showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention here. It should be noted that the drawings are in a simplified form and all use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the embodiments of the present invention. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features; the terms "front", "back", "bottom", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, the lamination mechanism of this embodiment includes a frame plate 1, a first sheet picking component 2, a second sheet picking component 3 and a sheet feeding component arranged on the frame plate 1. The first sheet picking component 2 and the second sheet picking component 3 are respectively used to pick up the positive electrode sheet and the negative electrode sheet, and transport the positive and negative electrode sheets from the electrode sheet conveyor belt (not shown) to the alignment table (not shown). The sheet feeding component includes a first sheet feeding unit 4 and a second sheet feeding unit 5. The first sheet feeding unit 4 and the second sheet feeding unit 5 are respectively used to feed the positive electrode sheet and the negative electrode sheet, and alternately place the positive and negative electrode sheets from the alignment table onto the lamination table (not shown) to achieve the overlapping placement of the positive electrode sheet and the negative electrode sheet, and form a laminated battery cell.

[0026] The present invention adopts the form of a motor + cam / rocker arm transmission structure to control the actions of the sheet picking component and the sheet feeding component. On the frame plate 1, there are track chutes for guiding the sheet picking component and the sheet feeding component to move along a certain movement trajectory. In this embodiment, a first sheet picking track chute 1a, a sheet feeding track chute 1b and a second sheet picking track chute 1c are arranged on the frame plate 1. The first sheet picking track chute 1a and the second sheet picking track chute 1c are symmetrically arranged on both sides of the sheet feeding track chute 1b. The first sheet picking track chute 1a is used to guide the movement of the first sheet picking component, the second sheet picking track chute 1c is used to guide the movement of the second sheet picking component, and the sheet feeding track chute 1b is used to guide the movement of the sheet feeding component. The first and second sheet picking track chutes and the sheet feeding track chute of this embodiment are all approximately inverted U-shaped, that is, the two ends of the chute are downward and the middle extends horizontally. Thus, the sheet picking component or the sheet feeding component has a vertical lifting movement at both ends of the chute and a horizontal translation movement in the middle of the chute.

[0027] The first sheet picking component 2 of this embodiment includes a sheet picking suction cup 2-1, a sheet picking longitudinal translation slide plate 2-2, a sheet picking transverse translation slide plate 2-3, a sheet picking drive connection shaft 2-4, a sheet picking swing arm 2-5, and a sheet picking cam 2-6. The sheet picking swing arm 2-5 is installed on the frame plate 1 through a hinge shaft Q and can swing around the hinge shaft Q. A first cam groove 2-5a is machined on the sheet picking swing arm 2-5, and the sheet picking cam 2-6 is arranged in the first cam groove 2-5a. The sheet picking cam 2-6 is driven by a motor (not shown). When the sheet picking cam 2-6 rotates in the first cam groove -5a, it can push the sheet picking swing arm 2-5 to swing around the hinge shaft Q. The sheet picking drive connection shaft 2-4 passes through the first sheet picking track chute 1a, with one end connected to the first sheet picking swing arm 2-5 and the other end connected to the sheet picking longitudinal translation slide plate 2-2. In this embodiment, a second cam groove 2-5b is machined on the sheet picking swing arm 2-5, and a first transition cam 2-7 is arranged at the end of the sheet picking drive connection shaft 2-4 connected to the sheet picking swing arm 2-5. The first transition cam 2-7 is arranged in the second cam groove 2-5b of the sheet picking swing arm 2-5. The sheet picking drive connection shaft 2-4 can move along the first sheet picking track chute 1a. When the sheet picking swing arm 2-5 swings, it can drive the movement of the sheet picking longitudinal translation slide plate 2-2 through the transmission of the first transition cam 2-7 and the sheet picking drive connection shaft 2-4.

[0028] A horizontally extending sheet picking transverse translation slide rail 1-1 is arranged on the frame plate 1. The sheet picking transverse translation slide plate 2-3 is arranged on the sheet picking transverse translation slide rail 1-1 and can move horizontally along the sheet picking transverse translation slide rail 1-1. The sheet picking longitudinal translation slide plate 2-2 is arranged on the sheet picking transverse translation slide plate 2-3 so as to be movable up and down. The middle of the sheet picking transverse translation slide plate 2-3 of this embodiment is hollowed out, and the sheet picking drive connection shaft 2-4 can pass through the sheet picking transverse translation slide plate 2-3 and be connected to the sheet picking longitudinal translation slide plate 2-2. A longitudinally extending sheet picking longitudinal translation slide rail 2-3a is arranged on the sheet picking transverse translation slide plate 2-3. The sheet picking longitudinal translation slide plate 2-2 is arranged on the sheet picking longitudinal translation slide rail 2-3a and can move up and down along the sheet picking longitudinal translation slide rail 2-3a. When the sheet picking drive connection shaft 2-4 moves driven by the sheet picking swing arm 2-5, the sheet picking suction cup 2-1 is driven to realize the process of lifting and translation under the combined action of the relative movement in the vertical direction between the sheet picking longitudinal translation slide plate 2-2 and the sheet picking transverse translation slide plate 2-3 and the relative movement in the horizontal direction between the sheet picking transverse translation slide plate 2-3 and the frame plate 1 according to the guidance of the first sheet picking track chute 1a. Optionally, in order to make the movement of the drive connection shaft in the track chute smoother, bearings are arranged on the sheet picking drive connection shaft 2-4, and the sheet picking drive connection shaft 2-4 slides in the first sheet picking track chute 1a through the bearings.

[0029] The sheet-taking suction cup 2-1 is arranged on the sheet-taking longitudinal translation slide plate 2-2. Optionally, in this embodiment, the sheet-taking suction cup 2-1 is arranged on the sheet-taking longitudinal translation slide plate 2-2 through a sheet-taking pneumatic slide table 2-8, and the sheet-taking pneumatic slide table 2-8 is arranged on the sheet-taking longitudinal translation slide plate 2-2. The pneumatic slide table plays the role of a spring, alleviating the impact of the sheet-taking suction cup on the pole piece at both ends of the lamination stroke. For the convenience of installing various components and having sufficient movement space, in this embodiment, the sheet-taking swing arm 2-5, the sheet-taking suction cup 2-1, the sheet-taking longitudinal translation slide plate 2-2, and the sheet-taking transverse translation slide plate 2-3 are respectively arranged on both sides of the frame plate 1. The sheet-taking swing arm 2-5 and the sheet-taking longitudinal translation slide plate 2-2 are connected by a sheet-taking drive connection shaft 2-4 passing through the frame plate 1. When there is enough space, the sheet-taking swing arm 2-5 can also be arranged on the same side of the frame plate 1 together with the sheet-taking suction cup 2-1, the sheet-taking longitudinal translation slide plate 2-2, and the sheet-taking transverse translation slide plate 2-3.

[0030] The structure of the second sheet-taking component 3 is the same as that of the first sheet-taking component 2, and the action principle process is also the same. The first sheet-taking component 2 and the second sheet-taking component 3 are symmetrically arranged on both sides of the sheet-feeding component. Similar to the first sheet-taking component 2, the second sheet-taking component 3 also includes a sheet-taking suction cup, a sheet-taking longitudinal translation slide plate, a sheet-taking transverse translation slide plate, a drive connection shaft, a sheet-taking swing arm, and a sheet-feeding cam. For the specific structure of the second sheet-taking component 3, reference can be made to the description of the foregoing first sheet-taking component 2.

[0031] In addition to including the first sheet-feeding unit 4 and the second sheet-feeding unit 5, the sheet-feeding component further includes a sheet-feeding translation slide plate 6, a sheet-feeding auxiliary drive block 7, a sheet-feeding swing arm 8, a sheet-feeding drive connection shaft 9, a sheet-feeding cam 10, and a vertical transition plate 11. A sheet-feeding transverse translation slide rail 1-2 extending in the horizontal direction and a sheet-feeding longitudinal translation slide rail 1-3 extending in the vertical direction are arranged on the frame plate 1. The sheet-feeding translation slide plate 6 is arranged on the sheet-feeding transverse translation slide rail 1-2 and can move relative to the frame plate 1 in the horizontal direction along the sheet-feeding transverse translation slide rail 1-2. The vertical transition plate 11 is arranged on the sheet-feeding longitudinal translation slide rail 1-3 and can move relative to the frame plate 1 in the vertical direction along the sheet-feeding longitudinal translation slide rail 1-3. The sheet-feeding auxiliary drive block 7 and the vertical transition plate 11 are connected together through a sliding rail + sliding groove matching structure. In this embodiment, a roller slide rail 11-1 is arranged at the top of the vertical transition plate 11. A sliding groove (not shown) matching with the roller slide rail 11-1 is arranged on the sheet-feeding auxiliary drive block 7, and the sheet-feeding auxiliary drive block 7 and the vertical transition plate 11 can move relative to each other along the roller slide rail 11-1. When two components of the present invention are connected by a groove-rail matching structure, the installation positions of the slide rail (track) and the sliding groove (groove) can be interchanged. For example, in this embodiment, a roller slide rail is arranged on the vertical transition plate, and a sliding groove matching with the roller slide rail is arranged on the sheet-feeding auxiliary drive block. However, the sliding groove can also be arranged on the vertical transition plate, and a slide rail that can be assembled in the sliding groove is arranged on the sheet-feeding auxiliary drive block. The same principle applies to the matching structures between other relatively slidable components.

[0032] A film feeding auxiliary driving block 7 is arranged on the film feeding translation slide plate 6, and the film feeding auxiliary driving block 7 is arranged on the film feeding translation slide plate 6 so as to be movable up and down. In this embodiment, a driving block longitudinal moving slide rail 6-1 extending in the vertical direction is arranged on the film feeding translation slide plate 6, and the film feeding auxiliary driving block 7 is arranged on the driving block longitudinal moving slide rail 6-1 and can move up and down along the driving block longitudinal moving slide rail 6-1.

[0033] A film feeding swing arm 8 is arranged on the frame plate 1. The film feeding swing arm 8 and the film feeding translation slide plate 6 of this embodiment are respectively located on different sides of the frame plate 1, and the film feeding swing arm 8 and the film taking swing arm 2-5 are located on the same side of the frame plate 1. The film feeding swing arm 8 is connected to the film feeding auxiliary driving block 7 through a film feeding driving connection shaft 9 passing through the film feeding track chute 1b. The film feeding swing arm 8 is installed on the frame plate 1 through a hinge shaft Q and can swing around the hinge shaft Q. A third cam groove 8a is machined on the film feeding swing arm 8, and a film feeding cam 10 is arranged in the third cam groove 8a. The film feeding cam 10 is driven by a motor (not shown). When the film feeding cam 10 rotates in the third cam groove 8a, it can push the film feeding swing arm 8 to swing around the hinge shaft Q. The film feeding track chute 1b is also in an inverted U shape and is arranged between two film taking track chutes. The film feeding driving connection shaft 9 passes through the film feeding track chute 1b, with one end connected to the film feeding swing arm 8 and the other end connected to the film feeding auxiliary driving block 7. A hollow is machined on the film feeding translation slide plate 6 of this embodiment, and the film feeding auxiliary driving block 7 has a connecting portion (not labeled) passing through the hollow of the film feeding translation slide plate 6. The connecting portion of the film feeding auxiliary driving block 7 passes through the hollow and is then connected to the film feeding driving connection shaft 9. A fourth cam groove 8b is machined on the film feeding swing arm 8 of this embodiment, and a second transition cam 12 is arranged at the end of the film feeding driving connection shaft 9 connected to the film feeding swing arm 8. The second transition cam 12 is arranged in the fourth cam groove 8b of the film feeding swing arm 8. The film feeding driving connection shaft 9 can move along the film feeding track chute 1b. The driving cam of the present invention reciprocates in a given cam groove, and its horizontal movement is converted through the cooperation of the transition cam, turning into the horizontal action of the pole piece suction cup; its vertical movement is directly converted into the vertical action of the pole piece suction cup, thereby turning the horizontal reciprocating linear motor action into the spatial displacement action of the pole piece suction cup with a given combined cam curve.

[0034] The first film feeding unit 4 and the second film feeding unit 5 are vertically movably arranged on the film feeding translation slide plate 6, and the first film feeding unit 4 and the second film feeding unit 5 are respectively located on the left and right sides of the film feeding auxiliary driving block 7. In this embodiment, the first film feeding unit longitudinal movement slide rails 6-2 and the second film feeding unit longitudinal movement slide rails 6-3 extending in the vertical direction are respectively arranged on the left and right sides of the film feeding translation slide plate 6. The first film feeding unit 4 is arranged on the first film feeding unit longitudinal movement slide rail 6-2 and can move relative to the film feeding translation slide plate 6 in the vertical direction along the first film feeding unit longitudinal movement slide rail 6-2. The second film feeding unit 5 is placed on the second film feeding unit longitudinal movement slide rail 6-3 and can move relative to the film feeding translation slide plate 6 in the vertical direction along the second film feeding unit longitudinal movement slide rail 6-3.

[0035] The first film feeding unit 4 of this embodiment includes a film feeding suction cup 4-1, a film feeding longitudinal movement slide plate 4-2, a film feeding driving connecting shaft 4-3 and a film feeding transition cam 4-4. The film feeding suction cup 4-1 is arranged on the film feeding longitudinal movement slide plate 4-2. The film feeding longitudinal movement slide plate 4-2 is arranged on the first film feeding unit longitudinal movement slide rail 6-2 and can move up and down along the second film feeding unit longitudinal movement slide rail 6-2. One end of the film feeding driving connecting shaft 4-3 is connected to the film feeding longitudinal movement slide plate 4-2, and the other end is provided with the film feeding transition cam 4-4. A film feeding unit track chute 11a is machined on the vertical transition plate 11. The film feeding transition cam 4-4 is arranged in the film feeding unit track chute 11a and can slide in the film feeding unit track chute 11a. The film feeding unit track chute 11a of this embodiment includes upper straight sections at both ends and a lower straight section in the middle. The upper straight section and the lower straight section are connected by an inclined section, and the straight sections all extend in the horizontal direction. The film feeding transition cams in the two film feeding units are both arranged in the film feeding unit track chute 11a. Optionally, the film feeding suction cup 4-1 of this embodiment is arranged on the film feeding longitudinal movement slide plate 4-2 through a film feeding pneumatic slide table 4-5. The action end of the film feeding pneumatic slide table 4-5 is provided with a direct drive rotary motor 4-6 (DD motor), and the film feeding suction cup 4-1 is arranged at the output end of the direct drive rotary motor 4-6. The structure of the second film feeding unit 5 is the same as that of the first film feeding unit 4. For specific details, reference can be made to the description of the first film feeding unit 4, which will not be elaborated here.

[0036] The operation process of each component of the lamination mechanism of the present invention will be described below.

[0037] The frame plate 1 is a fixed component. The pick-up cams in the first and second pick-up components and the film feeding cam of the film feeding component are respectively driven by their respective power driving units to rotate synchronously, so as to drive the pick-up swing arms in the first and second pick-up components and the film feeding swing arm in the film feeding component to swing synchronously.

[0038] The action process of the first film picking assembly 2 is as follows: the film picking cam 2-6 rotates in the first cam groove 2-5a of the film picking swing arm 2-5 under the drive of the linear motor, pushing the film picking swing arm 2-5 to swing left and right, and the film picking swing arm 2-5 drives the film picking drive connecting shaft 2-4 connected thereto to slide in the first film picking track slide groove 1a, and drives the film picking longitudinal sliding plate 2-2 to move through the film picking drive connecting shaft 2-4. Figure 3 Taking the direction shown as an example, the film-taking drive connecting shaft 2-4 first rises along the vertical section at the left end of the first film-taking track chute 1a, then translates along the horizontal section in the middle of the first film-taking track chute 1a, and then descends along the vertical section at the right end of the first film-taking track chute 1a. Through the cooperation between the film-taking longitudinal sliding plate 2-2 and the film-taking transverse sliding plate 2-3 and the frame plate 1, the lifting, translation and lowering process after the pole piece is sucked is realized. After the first film-taking assembly 2 transports the pole piece from the conveyor belt to the aligning table, the film-taking cam 2-6 rotates in the opposite direction, and resets the unloaded first film-taking assembly 2 in the opposite order, returns to the conveyor belt along the original path, and repeats the transportation of the next pole piece.

[0039] The action principle of the second film picking assembly 3 is the same as that of the first film picking assembly 2, but the direction is opposite. For example, the first film picking assembly 2 moves from left to right to complete the action of picking and placing the film, and moves from right to left without load, while the second film picking assembly 3 moves from left to right without load, and moves from right to left to complete the action of picking and placing the film. After the first film picking assembly 2 and the second film picking assembly 3 place the electrode sheets on the corresponding alignment tables respectively, the first film feeding unit 4 and the second film feeding unit 5 of the film feeding assembly place the electrode sheets from different alignment tables onto the stacking table respectively.

[0040] The film-feeding cam 10 rotates within the third cam groove 8a of the film-feeding swing arm 8 under the drive of the linear motor, pushing the film-feeding swing arm 8 to swing left and right. The film-feeding swing arm 8 drives the film-feeding drive connecting shaft 9 connected thereto to slide within the film-feeding track chute 1b, and drives the film-feeding auxiliary drive block 7 to move through the film-feeding drive connecting shaft 9. When the film-feeding auxiliary drive block 7 moves, its horizontal component motion drives the film-feeding translation slide plate 6 to move horizontally relative to the frame plate 1. The first film-feeding unit 4 (film-feeding longitudinal translation slide plate) and the second film-feeding unit 5 (film-feeding longitudinal translation slide plate) on the film-feeding translation slide plate 6 also translate synchronously. During the process that the first film-feeding unit 4 moves from the gauging table to the stacking table, the second film-feeding unit 5 synchronously moves from the stacking table to the gauging table, and vice versa; the vertical component motion of the film-feeding auxiliary drive block 7 drives the vertical transition plate 11 to move up and down relative to the frame plate 1. The vertical transition plate 11 drives the first film-feeding unit 4 (film-feeding longitudinal translation slide plate) and the second film-feeding unit 5 (film-feeding longitudinal translation slide plate) to move vertically relative to the film-feeding translation slide plate 6 through the cooperation of the film-feeding unit track chute 11a thereon and the film-feeding transition cam 4-4. Thus, the first film-feeding unit 4 and the second film-feeding unit 5 can move up and down, realizing the lifting action during the process of taking and feeding the film, and completing the process of alternately stacking the positive and negative plates during lamination.

[0041] As can be seen from the above operation process, the present invention adopts a transmission structure of cam + swing arm. The lifting and translation actions of one component can be completed by only one drive unit, without the need for two drive units to separately complete the driving in the horizontal and vertical directions, simplifying the structure and having high efficiency.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lamination mechanism, characterized in that, Comprising: A frame plate, on which a film feeding track chute is provided, and a first film picking track chute and a second film picking track chute symmetrically arranged on both sides in the horizontal direction of the film feeding track chute; A first film picking assembly arranged on the frame plate, the first film picking assembly includes a film picking cam, a film picking swing arm arranged on the frame plate through a hinge shaft, a film picking transverse moving slide plate movably arranged horizontally on the frame plate, a film picking longitudinal moving slide plate movably arranged vertically on the film picking transverse moving slide plate, a film picking suction cup arranged on the film picking longitudinal moving slide plate, and a film picking driving connecting shaft connecting the film picking swing arm and the film picking longitudinal moving slide plate. The film picking driving connecting shaft can slide along the first film picking track chute. The film picking swing arm is provided with a first cam groove, and the film picking cam is arranged in the first cam groove. When the film picking cam rotates, it drives the film picking swing arm to swing; A second film picking assembly arranged on the frame plate, the structure of the second film picking assembly is the same as that of the first film picking assembly, and the film picking driving connecting shaft of the second film picking assembly can slide along the second film picking track chute; A film feeding assembly arranged on the frame plate, the film feeding assembly is located between the first film picking assembly and the second film picking assembly. The film feeding assembly includes a film feeding cam, a film feeding swing arm arranged on the frame plate through a hinge shaft, a film feeding translation slide plate movably arranged horizontally on the frame plate, a film feeding auxiliary driving block movably arranged vertically on the film feeding translation slide plate, a vertical transition plate movably arranged vertically on the frame plate, a first film feeding unit and a second film feeding unit arranged at intervals in the horizontal direction on the film feeding translation slide plate, and a film feeding driving connecting shaft connecting the film feeding auxiliary driving block and the film feeding swing arm. The film feeding driving connecting shaft can slide along the film feeding track chute. The film feeding swing arm is provided with a third cam groove, and the film feeding cam is arranged in the third cam groove. When the film feeding cam rotates, it drives the film feeding swing arm to swing; A film feeding unit track chute is arranged on the vertical transition plate, and the vertical transition plate and the film feeding auxiliary driving block are connected through a horizontally arranged slide rail chute matching structure; The first film feeding unit includes a film feeding longitudinal moving slide plate movably arranged vertically on the film feeding translation slide plate, a film feeding suction cup arranged on the film feeding longitudinal moving slide plate, and a film feeding driving connecting shaft connecting the film feeding longitudinal moving slide plate and the vertical transition plate. The film feeding driving connecting shaft can move along the film feeding unit track chute; the structure of the second film feeding unit is the same as that of the first film feeding unit.

2. The lamination mechanism according to claim 1, wherein: Both ends of the film picking track chute and the film feeding track chute extend downward, and the middle extends horizontally; the film feeding unit track chute includes upper straight sections at both ends and a lower straight section in the middle, and the upper straight section and the lower straight section are connected by an inclined section, and the straight sections all extend in the horizontal direction.

3. The lamination mechanism according to claim 1, characterized in that: A second cam groove is arranged on the film picking swing arm, and a first transition cam is arranged at the end of the film picking driving connecting shaft connected to the film picking swing arm. The first transition cam is arranged in the second cam groove; And / or, a fourth cam groove is provided on the film feeding swing arm, and a second transition cam is provided at the end of the film feeding drive connection shaft connected to the film feeding swing arm, and the second transition cam is arranged in the fourth cam groove.

4. The lamination mechanism according to claim 1, wherein: The film taking swing arm and the film taking longitudinal translation slide plate are respectively located on both sides of the frame plate. The film taking swing arm and the film taking longitudinal translation slide plate are connected by a film taking drive connection shaft passing through the frame plate. The film taking drive connection shaft slides in the film taking track chute through the bearings provided thereon. And / or, the film feeding swing arm and the film feeding translation slide plate are respectively located on different sides of the frame plate. The film feeding swing arm and the film taking swing arm are located on the same side of the frame plate. The film feeding swing arm and the film feeding auxiliary drive block are connected by a film feeding drive connection shaft passing through the frame plate. The film feeding drive connection shaft slides in the film feeding track chute through the bearings provided thereon.

5. The lamination mechanism according to claim 1, characterized in that: The film taking suction cup is arranged on the film taking longitudinal translation slide plate through a film taking pneumatic slide table, and the film taking pneumatic slide table is arranged on the film taking longitudinal translation slide plate. And / or, the film feeding suction cup is arranged on the film feeding longitudinal translation slide plate through a film feeding pneumatic slide table. A direct drive rotary motor is arranged at the action end of the film feeding pneumatic slide table, and the film feeding suction cup is arranged at the output end of the direct drive rotary motor.

6. The lamination mechanism according to claim 1, wherein: A film feeding transverse slide rail extending in the horizontal direction and a film feeding longitudinal slide rail extending in the vertical direction are provided on the frame plate. The film feeding translation slide plate is arranged on the film feeding transverse slide rail and can move horizontally relative to the frame plate along the film feeding transverse slide rail. The vertical transition plate is arranged on the film feeding longitudinal slide rail and can move vertically relative to the frame plate along the film feeding longitudinal slide rail.

7. The lamination mechanism according to claim 1, characterized in that: A driving block longitudinal slide rail extending in the vertical direction is provided on the film feeding translation slide plate. The film feeding auxiliary drive block is arranged on the driving block longitudinal slide rail and can move up and down along the driving block longitudinal slide rail.

8. The lamination mechanism according to claim 1, characterized in that: First film feeding unit longitudinal slide rails and second film feeding unit longitudinal slide rails extending in the vertical direction are respectively arranged on the left and right sides of the film feeding translation slide plate. The film feeding longitudinal translation slide plate of the first film feeding unit is arranged on the first film feeding unit longitudinal slide rail and can move vertically relative to the film feeding translation slide plate along the first film feeding unit longitudinal slide rail. The film feeding longitudinal translation slide plate of the second film feeding unit is arranged on the second film feeding unit longitudinal slide rail and can move vertically relative to the film feeding translation slide plate along the second film feeding unit longitudinal slide rail. A film feeding transition cam is provided at the end of the film feeding drive connection shaft connected to the vertical transition plate. The film feeding transition cam is arranged in the film feeding unit track chute and can slide in the film feeding unit track chute.

9. The lamination mechanism according to claim 1 or 8, characterized in that: The first film feeding unit and the second film feeding unit are arranged on both sides of the film feeding auxiliary drive block in the horizontal direction.

10. The lamination mechanism according to claim 1, characterized in that: A roller slide rail is provided on the vertical transition plate, and a chute matching with the roller slide rail is provided on the film feeding auxiliary drive block. The film feeding auxiliary drive block and the vertical transition plate can move relative to each other along the roller slide rail.

11. The lamination mechanism according to claim 1, wherein: A first hollow is provided on the sheet-taking transverse sliding plate, and the sheet-taking driving connecting shaft passes through the first hollow and is connected to the sheet-taking longitudinal sliding plate; And / or, a second hollow is provided on the sheet-feeding translation sliding plate, the sheet-feeding auxiliary driving block has a connecting portion passing through the second hollow, and the connecting portion is connected to the sheet-feeding driving connecting shaft after passing through the second hollow.

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