Diaphragm tail roll deviation rectifying device and cutting and stacking all-in-one machine

Abstract

The utility model provides a diaphragm tail roll deviation rectifying device and a cutting and stacking all-in-one machine, the diaphragm tail roll deviation rectifying device comprises a deviation rectifying moving seat and a diaphragm adjusting assembly, and the deviation rectifying moving seat can move along a first direction; the diaphragm adjusting assembly is arranged on the deviation rectifying moving seat and comprises an adsorption plate and a swing part which are connected, the adsorption plate and the swing part are arranged on the deviation rectifying moving seat, and the swing part comprises a mandrel which extends in the first direction and is located on the side, in the second direction, of the adsorption plate. A distance for a diaphragm to penetrate through is formed between the mandrel and the adsorption plate, the adsorption plate is used for adsorbing the diaphragm and can move in the first direction, the mandrel is used for pressing the diaphragm, and the mandrel can adjust the angle of the tail end of the diaphragm. The utility model solves the problems that the existing diaphragm tail roll deviation rectifying device cannot ensure the alignment degree when the battery core is rolled at the tail, and the production quality of the battery core is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing and manufacturing, and in particular to a diaphragm tail roll deviation correction device and a cutting and stacking integrated machine. Background Art

[0002] With the rapid development of the lithium battery industry, lithium battery equipment is also constantly improving. Compared with the winding process, the stacking process greatly enhances the battery's energy density, safety, cycle life and other performance, and the future market development prospects are very broad.

[0003] Tail winding refers to the process of winding a certain length of the outermost diaphragm of the battery cell after the battery cell stacking is completed. In the prior art, a tail winding feeding mechanism is usually used to clamp the tail end of the diaphragm to maintain the diaphragm tension when the battery cell is tail-wound. However, the tension of the tail end of the diaphragm is difficult to control during the conversion process between linear motion and rotational motion, and when the last remaining part of the diaphragm is finished, the tail winding feeding mechanism has cancelled the fixation of the diaphragm, causing the diaphragm to lose tension, which is easy to cause diaphragm wrinkles, and the alignment during tail winding cannot be guaranteed, affecting the production quality of the battery cell. Utility Model Content

[0004] The utility model aims to solve the problem that the existing diaphragm tail winding correction device cannot ensure the alignment of the battery cell tail winding, thus affecting the production quality of the battery cell.

[0005] In order to solve the above problems, the utility model provides a diaphragm tail roll correction device in the first aspect, comprising:

[0006] A deviation-correcting movable seat, wherein the deviation-correcting movable seat can move along a first direction;

[0007] A diaphragm adjustment assembly, wherein the diaphragm adjustment assembly is arranged on the deflection correcting movable seat, the diaphragm adjustment assembly includes a connected adsorption plate and a swinging member, the adsorption plate and the swinging member are arranged on the deflection correcting movable seat, the swinging member includes a core shaft, the core shaft is extended along a first direction, the core shaft is located on one side of the adsorption plate along a second direction, there is a gap between the core shaft and the adsorption plate for the diaphragm to pass through, the adsorption plate is used to adsorb the diaphragm, the adsorption plate can move along the first direction, the core shaft is used to press the diaphragm, and the core shaft can adjust the angle of the tail end of the diaphragm.

[0008] Furthermore, the swinging member also includes a fixed shaft, a connecting arm and a first driving member, the fixed shaft and the core shaft are arranged in parallel, the core shaft and the fixed shaft are connected through the connecting arm, the first driving member is connected to the connecting arm, and the first driving member drives the connecting arm to drive the core shaft to rotate relative to the fixed shaft to adjust the angle of the tail end of the diaphragm.

[0009] Furthermore, a fixing piece is provided on the connecting arm, the first driving piece is a cylinder, and a rod body of the cylinder is connected to the connecting arm through the fixing piece.

[0010] Furthermore, the connecting arm is provided with a first through hole and a second through hole, the connecting arm is penetrated in the fixed shaft through the first through hole, the connecting arm is penetrated in the core shaft through the second through hole, and the fixing member is arranged between the first through hole and the second through hole.

[0011] Furthermore, the diaphragm adjustment assembly also includes a mounting plate and a second driving member, the mounting plate is provided with a first slide rail extending along a first direction, the adsorption plate is slidably connected to the first slide rail, the second driving member is connected to the adsorption plate, and the second driving member is used to drive the adsorption plate to move along the first slide rail.

[0012] Furthermore, a plurality of adsorption holes are provided on the adsorption plate, the adsorption plate is connected to a vacuum pumping assembly, and the adsorption plate vacuum-adsorbs the diaphragm through the adsorption holes.

[0013] Furthermore, the deviation-correcting movable seat is also provided with a sensing mounting frame, and the sensing mounting frame is provided with a sensor, and the sensor is used to sense the edge position of the diaphragm.

[0014] Furthermore, the two sensors are arranged on the sensing mounting frame along a first direction, and the two sensors can move relative to the sensing mounting frame along the first direction and can be locked with the sensing mounting frame.

[0015] Furthermore, it also includes a base, on which a second slide rail and a third driving member are arranged, the second slide rail is extended along the first direction, the deviation correcting movable seat is connected to the second slide rail, and the third driving member drives the deviation correcting movable seat to reciprocate along the second slide rail.

[0016] A second aspect of the utility model provides a cutting and stacking machine, which comprises the diaphragm tail roll deviation correction device as described above.

[0017] The diaphragm tail roll correction device and cutting and stacking machine described in the utility model can make the diaphragm run between the adsorption plate and the mandrel, the mandrel is used to compress the diaphragm, and the mandrel can adjust the angle of the tail end of the diaphragm, so that the mandrel always presses on the diaphragm, and in the process of tail roll, the mandrel can give the diaphragm a certain tension, so that the tail end of the diaphragm maintains tension, and the tension of the diaphragm in the process of tail roll is controllable; in addition, the mandrel is arranged on one side of the adsorption plate, and the mandrel can make the adsorption plate always maintain adsorption force on the diaphragm when compressing the diaphragm, and the adsorption plate moves along the first direction, which can drive the adsorbed diaphragm to move along the first direction, thereby realizing the correction of the position of the diaphragm on the adsorption plate. The diaphragm tail roll correction device adjusts the diaphragm tension in the process of tail roll by the mandrel and corrects the position of the diaphragm by the adsorption plate, which is conducive to improving the alignment of the diaphragm in the process of tail roll and improving the quality of battery cell winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the diaphragm tail roll correction device provided in an embodiment of the utility model;

[0019] Figure 2 It is a front view structural schematic diagram of the diaphragm tail roll correction device provided in an embodiment of the utility model;

[0020] Figure 3 It is a side view structural schematic diagram of the diaphragm tail roll correction device provided in an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view of the structure of the diaphragm tail roll correction device provided in an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of tail winding using the diaphragm tail winding correction device provided in the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is described clearly and in detail below in conjunction with the accompanying drawings. In the description of the utility model, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the description of this specification, the term "as an optional implementation" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one optional embodiment or optional example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] Combination Figures 1 to 4 As shown, the first aspect of this embodiment provides a diaphragm tail roll correction device, comprising: a base 10, a correction moving seat 20 and a diaphragm adjustment assembly 30, wherein:

[0026] The deviation correction movable seat 20 is disposed on the base 10, and the deviation correction movable seat 20 can move along a first direction (i.e. Figure 1 The diaphragm adjustment assembly 30 is arranged on the deviation correction moving seat 20, and the diaphragm adjustment assembly 30 includes a suction plate 31 and a swinging member connected thereto, and the suction plate 31 and the swinging member are both arranged on the deviation correction moving seat 20, and the swinging member includes a mandrel 32, and the mandrel 32 is arranged along the first direction, and the mandrel 32 is located at the suction plate 31 along the second direction (i.e. Figure 1 On one side of the y-axis direction), there is a gap between the core shaft 32 and the adsorption plate 31 for the diaphragm 100 to pass through, the adsorption plate 31 is used to adsorb the diaphragm 100, the adsorption plate 31 can move along the first direction to drive the adsorbed diaphragm 100 to move along the first direction, the core shaft 32 is used to press the diaphragm 100, and the core shaft 32 can adjust the angle of the tail end of the diaphragm 100.

[0027] Thus, the diaphragm 100 can be carried between the adsorption plate 31 and the mandrel 32, the mandrel 32 is used to press the diaphragm 100, and the mandrel 32 can adjust the angle of the tail end of the diaphragm 100, so that the mandrel 32 is always pressed against the diaphragm 100, and in the process of tail winding, the mandrel 32 can give a certain tension to the diaphragm 100, so that the tail end of the diaphragm 100 maintains tension, and the tension of the diaphragm 100 in the process of tail winding is controllable; in addition, the mandrel 32 is arranged on one side of the adsorption plate 31, and the mandrel 32 presses the diaphragm 100. 00, the adsorption plate 31 can always maintain the adsorption force on the diaphragm 100, and the adsorption plate 31 moves along the first direction, which can drive the adsorbed diaphragm 100 to move along the first direction, thereby realizing the position correction of the diaphragm 100 on the adsorption plate 31. Therefore, in this embodiment, the tension of the diaphragm 100 is adjusted during the tail winding process by the core shaft 32 and the position of the diaphragm 100 is corrected by the adsorption plate 31, which is beneficial to improve the alignment of the diaphragm 100 during the tail winding process and improve the quality of the battery cell winding.

[0028] Based on the above embodiment, as an optional implementation mode, Figure 3 As shown, the swing member also includes a fixed shaft 33, a connecting arm 34 and a first driving member 35. The fixed shaft 33 and the core shaft 32 are arranged in parallel. The core shaft 32 and the fixed shaft 33 are connected through the connecting arm 34. The first driving member 35 is connected to the connecting arm 34. The first driving member 35 drives the core shaft 32 to rotate relative to the fixed shaft 33 through the connecting arm 34, and the angle of the tail end of the diaphragm 100 is adjusted by the rotation of the core shaft 32. Specifically, the connecting arm 34 is located on one side of the adsorption plate 31 along the first direction, and a first through hole is provided at one end of the connecting arm 34. The connecting arm 34 is penetrated on the fixed shaft 33 through the first through hole, and the connecting arm 34 is rotatably connected to the fixed shaft 33; the other end of the connecting arm 34 is provided with a second through hole, and the connecting arm 34 is penetrated on the core shaft 32 through the second through hole. The core shaft 32 protrudes from one side edge of the adsorption plate 31 along the second direction, and the core shaft 32 is extended along the first direction. The connecting arm 34 and the core shaft 32 can be connected by a threaded fastener. A fixing member 341 is provided between the first through hole and the second through hole of the connecting arm 34, and the connecting arm 34 and the first driving member 35 are connected through the fixing member 341, wherein the first driving member 35 is a cylinder, and the rod of the cylinder is connected to the connecting arm 34 through the fixing member 341, and the fixing member 341 can be a screw or a bolt, and the screw or the bolt can lock the rod of the cylinder to the connecting arm 34. Therefore, when the first driving member 35 drives its rod to move, the rod drives the connecting arm 34 to rotate around the fixed shaft 33, and the connecting arm 34 can drive the core shaft 32 connected thereto to rotate around the fixed shaft 33, and the angle of the tail end of the diaphragm 100 can be adjusted, so that the core shaft 32 is always pressed against the diaphragm 100, and the diaphragm 100 can be kept in a tensioned state during the tail rolling process, shortening or avoiding the swing of the tail end of the diaphragm 100, which is conducive to improving the alignment of the battery cell.

[0029] On the basis of the above embodiment, as an optional implementation, the diaphragm adjustment assembly 30 also includes a mounting plate 36 and a second driving member 37, the mounting plate 36 is provided with a first slide rail extending along the first direction, the adsorption plate 31 is slidably connected to the first slide rail, the second driving member 37 is connected to the adsorption plate 31, and the second driving member 37 is used to drive the adsorption plate 31 to move along the first slide rail. Specifically, the adsorption plate 31 is connected to the first slide rail through a slider, the slider is connected to the second driving member 37, and the second driving member 37 drives the slider to move along the first slide rail to drive the adsorption plate 31 to move along the first slide rail, so that the adsorption plate 31 moves along the first direction, and the adsorption plate 31 drives the adsorbed diaphragm 100 to move along the first direction, so as to achieve precise positioning of the diaphragm 100, so as to correct the position of the diaphragm 100, which is conducive to further improving the alignment of the diaphragm 100 during the tail rolling process. In this embodiment, when the adsorption plate 31 moves in the first direction, the swinging member connected to the adsorption plate 31 will also move in the first direction as a whole, so that when the position of the diaphragm 100 is corrected, the adsorption plate 31 and the mandrel 32 can keep moving synchronously, avoiding wrinkles caused by the asynchronous movement of the adsorption plate 31 and the mandrel 32, which affects the alignment of the battery cell. As an optional embodiment, the second driving member 37 can be a motor, and the second driving member 37 can also be matched with a mechanical transmission structure such as a screw rod, gear, cylinder, chain or synchronous belt to achieve better driving.

[0030] On the basis of the above embodiment, as an optional implementation, a plurality of adsorption holes are provided on the adsorption plate 31, and the adsorption holes are provided through the adsorption plate 31, and the plurality of adsorption holes are provided side by side and at intervals on the adsorption plate 31, and the adsorption plate 31 is connected to the vacuum pumping assembly, and the tail roll of the diaphragm 100 is sucked and tightened by the adsorption holes, so that the adsorption plate 31 vacuum adsorbs the diaphragm 100 through the adsorption holes 31. Therefore, by providing a plurality of adsorption holes on the adsorption plate 31, the adsorption plate 31 can always maintain vacuum suction and tighten the diaphragm 100, so that the diaphragm 100 has a certain tension during the tail roll process, and the wrinkles of the diaphragm 100 can be eliminated, which is conducive to improving the tail roll yield of the battery cell. As an optional embodiment, multiple adsorption holes are evenly distributed on the adsorption plate 31, so that the adsorption plate 31 is a full-suction adsorption plate. The tension of the diaphragm 100 can be controlled by the amount of air, so that the diaphragm can maintain the tail roll tension while sliding on the adsorption plate 31, so that the tension of the diaphragm 100 is stable and controllable, and there is no need for a clamping mechanism to clamp the diaphragm 100, so as to avoid the tail end angle of the diaphragm 100 changing with the movement of the clamping mechanism when the diaphragm 100 is clamped, resulting in uncontrollable tension of the diaphragm 100.

[0031] On the basis of the above embodiment, as an optional implementation mode, a sensing mounting frame 40 is further provided on the correcting movable seat 20, and two sensors 41 are provided on the sensing mounting frame 40. The two sensors 41 are arranged along the first direction, and the two sensors 41 are used to sense the edge position of the diaphragm 100, and feed back to the diaphragm tail roll correction device. The second driving member 37 drives the adsorption plate 31 to move along the first slide rail according to the result, corrects the position of the diaphragm 100, and ensures that there is no poor alignment of the diaphragm when the battery cell diaphragm is tail rolled, thereby effectively improving the quality of battery cell production.

[0032] On the basis of the above embodiment, as an optional implementation, both sensors 41 can move relative to the sensing mounting frame 40 along the first direction and can be locked with the sensing mounting frame 40. Specifically, the sensing mounting frame 40 is provided with two adjustment holes extending along the first direction, and each sensor 41 is mounted on the adjustment hole through an adjustment block, and the adjustment block can move in the adjustment hole, and the adjustment block can be locked with the adjustment hole through bolts or other fasteners to lock the sensor 41 on the sensing mounting frame 40. Thus, the two sensors 41 can move relative to the sensing mounting frame 40 along the first direction, and the position of the sensor 41 can be fine-tuned, so that the diaphragm tail roll correction device can be applicable to diaphragms of different widths, so that the diaphragm tail roll correction device has a wider range of uses. As an optional implementation, the sensor 41 is an optical fiber sensor.

[0033] On the basis of the above embodiment, as an optional implementation, a second slide rail 11 and a third driving member 12 are provided on the base 10, the second slide rail 11 extends along the first direction, the deviation correction moving seat 20 is connected to the second slide rail 11, and the third driving member 12 drives the deviation correction moving seat 20 to reciprocate along the second slide rail 11, thereby driving the diaphragm adjustment assembly 30 provided on the deviation correction moving seat 20 to reciprocate along the first direction, so that the diaphragm adjustment assembly 30 can approach and adsorb the diaphragm 100 during the process of the diaphragm tail rolling. As an optional implementation, the third driving member 12 can be a rodless cylinder assembly, the cylinder in the rodless cylinder assembly is provided on the base 10, and is connected to the deviation correction moving seat 20 through a cylinder puller.

[0034] In this embodiment, a drag chain 13 is further provided on the base 10 . The drag chain 13 is used for routing electrical equipment and sensors 41 , etc. The drag chain 13 can be installed on the base 10 by means of sheet metal parts.

[0035] The second aspect of this embodiment further provides a cutting and stacking machine, which includes the above-mentioned diaphragm tail roll correction device.

[0036] Combine the following Figures 1 to 5 The working principle of the diaphragm tail roll correction device in this embodiment is described as follows:

[0037] When the battery cell 200 is being rolled up, the third driving member 12 drives the correcting movable seat 20 to move to a suitable position along the first direction, and makes the diaphragm 100 located between the adsorption plate 31 and the core shaft 32. The first driving member 35 drives the core shaft 32 to rotate around the fixed axis 33 through the connecting arm 34, and adjusts the angle of the tail roll of the diaphragm 100, so that the core shaft 32 is pressed against the diaphragm 100, and the core shaft 32 presses down the diaphragm 100 to ensure that the adsorption plate 31 maintains an adsorption effect on the diaphragm 100 during the tail roll. The two sensors 41 sense the edge position of the diaphragm 100, and at the same time, the second driving member 37 drives the adsorption plate 31 to move along the first slide rail to correct the position of the diaphragm 100, so that the tail end of the diaphragm 100 maintains a good alignment until the tail end of the diaphragm 100 is completely separated from the adsorption plate 31, and the adsorption plate 31 breaks the vacuum and stops adsorption until the winding of the battery cell 200 is completed.

[0038] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A diaphragm tail roll correction device, characterized in that: include: A deviation-correcting movable seat, wherein the deviation-correcting movable seat can move along a first direction; A diaphragm adjustment assembly, wherein the diaphragm adjustment assembly is arranged on the deflection correcting movable seat, the diaphragm adjustment assembly includes a connected adsorption plate and a swinging member, the adsorption plate and the swinging member are arranged on the deflection correcting movable seat, the swinging member includes a core shaft, the core shaft is extended along a first direction, the core shaft is located on one side of the adsorption plate along a second direction, there is a gap between the core shaft and the adsorption plate for the diaphragm to pass through, the adsorption plate is used to adsorb the diaphragm, the adsorption plate can move along the first direction, the core shaft is used to press the diaphragm, and the core shaft can adjust the angle of the tail end of the diaphragm.

2. The diaphragm tail roll correction device according to claim 1 is characterized in that: The swinging member also includes a fixed shaft, a connecting arm and a first driving member. The fixed shaft and the core shaft are arranged in parallel. The core shaft and the fixed shaft are connected through the connecting arm. The first driving member is connected to the connecting arm. The first driving member drives the connecting arm to drive the core shaft to rotate relative to the fixed shaft to adjust the angle of the tail end of the diaphragm.

3. The diaphragm tail roll correction device according to claim 2 is characterized in that: The connecting arm is provided with a fixing piece, the first driving piece is a cylinder, and the rod body of the cylinder is connected to the connecting arm through the fixing piece.

4. The diaphragm tail roll correction device according to claim 3 is characterized in that: The connecting arm is provided with a first through hole and a second through hole. The connecting arm is penetrated into the fixed shaft through the first through hole, and the connecting arm is penetrated into the core shaft through the second through hole. The fixing member is arranged between the first through hole and the second through hole.

5. The diaphragm tail roll correction device according to claim 1, characterized in that: The diaphragm adjustment assembly also includes a mounting plate and a second driving member, the mounting plate is provided with a first slide rail extending along a first direction, the adsorption plate is slidably connected to the first slide rail, the second driving member is connected to the adsorption plate, and the second driving member is used to drive the adsorption plate to move along the first slide rail.

6. The diaphragm tail roll correction device according to claim 1, characterized in that: The adsorption plate is provided with a plurality of adsorption holes, the adsorption plate is connected with a vacuum pumping assembly, and the adsorption plate vacuum-adsorbs the diaphragm through the adsorption holes.

7. The diaphragm tail winding correction device according to claim 1 is characterized in that: The deviation-correcting movable seat is also provided with a sensing mounting frame, and the sensing mounting frame is provided with a sensor, and the sensor is used to sense the edge position of the diaphragm.

8. The diaphragm tail winding correction device according to claim 7 is characterized in that: The two sensors are arranged on the sensing mounting frame along a first direction, and both the two sensors can move relative to the sensing mounting frame along the first direction and can be locked with the sensing mounting frame.

9. The diaphragm tail winding correction device according to claim 1, characterized in that: It also includes a base, on which a second slide rail and a third driving member are arranged, the second slide rail is extended along the first direction, the deviation correcting movable seat is connected to the second slide rail, and the third driving member drives the deviation correcting movable seat to reciprocate along the second slide rail.

10. A cutting and stacking machine, characterized in that: The cutting and stacking machine includes the diaphragm tail roll correction device as described in any one of claims 1 to 9.

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