A lamination device with cam-driven presser blade advance and retreat

Abstract

The utility model discloses a kind of lamination devices of cam drive press knife in and out, belong to electric core processing technical field.It includes: lamination table;Pressing and stacking assembly, two are set and respectively distributed in the front and back of lamination table, pressing and stacking assembly includes first driving part and two supports respectively slidingly arranged in the left and right sides of lamination table, support is equipped with press knife and be used to drive press knife up and down movement telescopic driving part;First driving part includes driving motor and rotationally installed in lamination table's rotating shaft, the left and right ends of rotating shaft are all provided with the guide groove of oblique arrangement, two supports are all provided with the guide column sliding in corresponding guide groove respectively;Driving motor is used to drive rotating shaft rotation.Drive rotating shaft rotation, can synchronously drive two supports mutually close or away, so that the two supports of same pressing and stacking assembly can drive two press knives thereon synchronously close or away, while guaranteeing the synchronism of press knife in and out action, also can reduce the number of driving part.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing technology, and in particular to a cam-driven stacking device for advancing and retreating a pressure cutter. Background Technology

[0002] A battery cell consists of a positive electrode and a negative electrode, which are separated by a separator. In actual production, a continuous separator is wrapped around the stacked positive and negative electrode layers in sequence, so that each adjacent electrode layer is separated by a separator. This technology is called battery stacking technology.

[0003] During the battery stacking process, when the separator is bent from one layer to the next, it is necessary to use two pressure knives on both sides to advance into the separator area and press the separator, and to release the separator and exit the separator area. However, the two pressure knives on both sides are moved forward and backward by cylinders, which makes it easy for the pressure knives on both sides to move asynchronously. Utility Model Content

[0004] The purpose of this utility model is to provide a cam-driven stacking device for pressing blades to advance and retreat, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: a cam-driven stacking device for advancing and retreating a pressing knife, comprising: a stacking table; and two pressing assemblies respectively distributed on the front and rear sides of the stacking table. Each pressing assembly includes a first driving member and two supports slidably disposed on the left and right sides of the stacking table. Each support is equipped with a pressing knife and a telescopic driving member for driving the pressing knife to move up and down. The first driving member includes a drive motor and a rotating shaft rotatably mounted on the stacking table. Both ends of the rotating shaft are provided with inclined guide grooves. Each of the two supports is provided with a guide post that slides in the corresponding guide groove. The drive motor is used to drive the rotating shaft to rotate and, under the guidance of the guide grooves and the guide posts, drives the two supports to move closer or further apart.

[0006] This technical solution has at least the following beneficial effects: by driving a rotating shaft to rotate, under the guidance of the guide column and guide groove, the two supports are synchronously driven to move closer or further away from each other, so that the two supports of the same stacking assembly can drive the two pressing knives on them to move closer or further away synchronously. While ensuring the synchronicity of the pressing knife's forward and backward movements, it can also reduce the number of driving components.

[0007] As a further improvement to the above technical solution, the guide groove is arranged around the rotating shaft.

[0008] As a further improvement to the above technical solution, at least a portion of the guide groove is curved.

[0009] As a further improvement to the above technical solution, guide cylinders can be detachably installed at both ends of the rotating shaft, and the guide groove is provided in the guide cylinder.

[0010] As a further improvement to the above technical solution, the guide cylinder is mounted on the rotating shaft via a keyless expansion sleeve.

[0011] As a further improvement to the above technical solution, the guide column is rotatably connected to the support.

[0012] As a further improvement to the above technical solution, the stacking stage is equipped with first slide rails on both the front and rear sides for sliding of the two supports on the corresponding sides.

[0013] As a further improvement to the above technical solution, the front and rear sides of the top surface of the stacking stage are each equipped with a second slide rail for sliding on the two supports on the corresponding sides.

[0014] As a further improvement to the above technical solution, the support is equipped with a sensing plate, and the stacking stage is equipped with a photoelectric sensor for sensing the position of the sensing plate.

[0015] As a further improvement to the above technical solution, the telescopic drive component adopts a voice coil motor. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the stacking assembly in an embodiment of the present invention;

[0019] Figure 3 This is a front view of an embodiment of the present utility model;

[0020] Figure 4 This is a top view of an embodiment of the present utility model.

[0021] 100 Stacking stage; 110 Photoelectric sensor; 200 Stacking assembly; 210 Drive motor; 220 Rotating shaft; 230 Guide cylinder; 231 Guide groove; 240 Support; 241 Guide column; 242 Sensing sheet; 250 Pressing knife; 260 Telescopic drive component; 400 First slide rail; 500 Second slide rail. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figure 1-4 A cam-driven stacking device for advancing and retracting a pressing knife includes a stacking stage 100 and two pressing components, one of which is located on the front side of the stacking stage 100 and the other is located on the rear side of the stacking stage 100.

[0027] The stacking assembly includes a first drive member, two supports 240, two pressing blades 250, and two telescopic drive members 260. The first drive member includes a drive motor 210, a rotating shaft 220, and two guide cylinders 230.

[0028] Both the front and rear sides of the stacking assembly 200 are equipped with horizontally arranged first slide rails 400. Two supports 240 of the front stacking assembly are slidably mounted at the left and right ends of the front first slide rail 400, and two supports 240 of the rear stacking assembly are slidably mounted at the left and right ends of the rear first slide rail 400. Similarly, both the front and rear sides of the stacking table 100 are equipped with horizontally arranged second slide rails 500. The two supports 240 of the front stacking assembly are slidably mounted at the left and right ends of the front second slide rail 500, and two supports 240 of the rear stacking assembly are slidably mounted at the left and right ends of the rear second slide rail 500. By simultaneously restricting the sliding direction of the two supports 240 using the first and second slide rails 400, the sliding stability of the supports 240 relative to the stacking table 100 can be improved, ensuring the stability and reliability of the support 240's sliding motion.

[0029] Two telescopic drive members 260 are respectively installed on the top of the two supports 240, and two pressure knives 250 are also respectively installed on the output end of the two telescopic drive members 260, with the two pressure knives 250 extending towards the opposite side. The telescopic drive members 260 can drive the pressure knives 250 to move vertically, thereby realizing the action of pressing or releasing the diaphragm.

[0030] The telescopic drive component 260 employs a voice coil motor. Compared to a cylinder, the voice coil motor offers superior response time, positional accuracy, and force control compared to a motor-driven lifting structure, thus improving stacking efficiency and quality. In other embodiments, the telescopic drive component 260 may also utilize a cylinder, hydraulic cylinder, or electric telescopic cylinder.

[0031] Both ends of the rotating shaft 220 are rotatably mounted on the stacking table 100 via bearings, and the rotating shaft 220 is arranged horizontally in the left-right direction. The stacking table 100 is equipped with a support plate, and the drive motor 210 is mounted on the support plate. The output end of the drive motor 210 is connected to one end of the rotating shaft 220 via a coupling, so that the drive motor 210 can drive the rotating shaft 220 to rotate.

[0032] Both guide cylinders 230 are detachably mounted at both ends of the rotating shaft 220 via keyless expansion sleeves. The keyless expansion sleeves convert the bolt tightening force into surface pressure on the inner and outer diameter sides via a conical surface, thereby fixing the rotating shaft 220 and the guide cylinders 230 together. The guide cylinders 230 can be removed without damage by loosening the bolts, facilitating maintenance and replacement of components. In other embodiments, the guide cylinders 230 can also be connected to the rotating shaft 220 via screws that pass through the guide cylinders 230 and abut against the rotating shaft 220, thus achieving a detachable connection between the guide cylinders 230 and the rotating shaft 220.

[0033] The outer periphery of the guide cylinder 230 is provided with a guide groove 231, and the support 240 is rotatably mounted with a guide post 241 via a bearing. The guide post 241 is inserted into the corresponding guide groove 231. The two supports 240, two pressing knives 250, and two guide grooves 231 in the stacking assembly 200 are arranged symmetrically with respect to the left and right center planes.

[0034] The guide groove 231 is inclined so that when the drive motor 210 drives the rotating shaft 220 to rotate, the guide post 241 slides in the guide groove 231. Under the guidance of the guide groove 231 and the guide post 241, the two supports 240 move closer or further away from each other, thereby causing the two pressure knives 250 to move closer or further away from each other.

[0035] The guide groove 231 is arranged around the guide cylinder 230. The drive motor 210 only needs to rotate in one direction to realize the reciprocating motion of the support 240, which facilitates the cyclic forward and backward operation of the pressure knife 250.

[0036] In other embodiments, the radius of the rotating shaft 220 can be designed to be larger or it can be designed as a shaft with unequal radii at both ends. Then, guide grooves 231 can be directly opened on the outer periphery of both ends of the rotating shaft 220. The inclined guide grooves 231 are arranged around the rotating shaft 220.

[0037] Furthermore, the guide groove 231 is curved in the middle, that is, after the outer periphery of the guide cylinder 230 is flattened, the extension direction of the guide groove 231 is an arc on the outer periphery of the guide cylinder 230. This makes the displacement of the support 240 in the axial direction of the rotating shaft 220 gradually increase or decrease with each unit angle rotation of the guide cylinder 230. Thus, the pressure knife 250 can move at a variable speed under the uniform speed drive of the drive motor 210.

[0038] It can be understood that the four pressure knives 250 set on the stacking table 100 are respectively distributed on the left and right sides of the front side and the left and right sides of the rear side, thereby realizing the bending and stacking process of the diaphragms on the front and rear sides.

[0039] This embodiment employs a voice coil motor combined with the guide cylinder 230. Based on the voice coil motor's fast response and high control precision, and the guide cylinder 230, the drive motor 210 only requires one acceleration and deceleration step to achieve the two movements of the pressing knife 250 (forward and backward). Other conventional methods require two acceleration and deceleration steps to control the pressing knife 250's movement. Therefore, in the stacking device of this embodiment, the lifting and backward movement of the pressing knife 250 improves both speed and accuracy. This device effectively improves stacking efficiency and precisely controls the downward pressure of the pressing knife 250.

[0040] Furthermore, each of the two supports 240 in the stacking assembly 200 is equipped with a sensing plate 242 on the side of each other that is close to each other, and a photoelectric sensor 110 is installed at the corresponding position on the stacking stage 100. When the two supports 240 in the stacking assembly 200 are close to each other to a certain distance or position, the sensing plate 242 reaches the position of the corresponding photoelectric sensor 110 and is sensed by the corresponding photoelectric sensor 110, so that the photoelectric sensor generates a sensing signal corresponding to the position of the pressing knife 250, so as to facilitate the adjustment and determination of the position of the pressing knife 250.

[0041] In addition, the top of the stacking table 100 is provided with a plate for stacking operations. Third slide rails are slidably provided on the left and right sides of the bottom of the stacking table 100. The third slide rails are arranged horizontally in the front-back direction and are mounted on the frame, which enables the stacking device of this embodiment to move as a whole in the front-back direction, so as to adjust the position of the stacking operation.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stacking device for cam-driven pressing knife advance and retraction, characterized in that, include: Stacking table; The stacking assembly has two components, one on the front and one on the back of the stacking table. Each stacking assembly includes a first driving component and two supports slidably disposed on the left and right sides of the stacking table. Each support is equipped with a pressing blade and a telescopic driving component for moving the pressing blade up and down. The first driving component includes a drive motor and a rotating shaft rotatably mounted on the stacking table. Both ends of the rotating shaft have inclined guide grooves. Each of the two supports has a guide post that slides within its corresponding guide groove. The drive motor drives the rotating shaft to rotate, and under the guidance of the guide grooves and the guide posts, moves the two supports closer together or further apart.

2. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: The guide groove is arranged around the rotating shaft.

3. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: At least a portion of the guide groove is curved.

4. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: Guide cylinders can be detachably installed at both ends of the rotating shaft, and the guide groove is provided in the guide cylinder.

5. The stacking device for cam-driven pressing knife advance and retraction according to claim 4, characterized in that: The guide cylinder is mounted on the rotating shaft via a keyless expansion sleeve.

6. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: The guide post is rotatably connected to the support.

7. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: The stacking table is equipped with first slide rails on both the front and rear sides for sliding the two supports on the corresponding sides.

8. The stacking device for cam-driven pressing knife advance and retraction according to claim 7, characterized in that: The stacking platform has second slide rails installed on both the front and rear sides of its top surface, allowing the two supports on the corresponding sides to slide.

9. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: The support is equipped with a sensing plate, and the stacking stage is equipped with a photoelectric sensor for sensing the position of the sensing plate.

10. The stacking device for cam-driven pressing knife advance and retraction according to claim 1, characterized in that: The telescopic drive component uses a voice coil motor.

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