Continuous winding device for battery diaphragm

Abstract

The utility model discloses a battery diaphragm continuous winding device which comprises an installation frame, a winding assembly is installed on the inner wall of the installation frame, the winding assembly comprises a winding positioning frame, the winding positioning frame is rotationally connected with the inner wall of the installation frame through a positioning rotating shaft, two winding rollers are rotationally connected with the inner wall of the winding positioning frame, and the two winding rollers are arranged on the inner wall of the winding positioning frame. The two winding rollers are symmetrically arranged around the positioning rotating shaft; a driving device is further arranged on the side wall of the mounting frame, can stretch out to transmit torque and is located over the positioning rotating shaft. The battery diaphragm winding device is simple in winding structure, small in occupied space and capable of achieving continuous winding of battery diaphragms.

Description

Technical Field

[0001] The utility model relates to the technical field of battery diaphragm production, in particular to a battery diaphragm continuous winding device. Background Art

[0002] After stretching and surface testing, the battery separator needs to be rolled up through a winding device to facilitate subsequent storage and transportation of the battery separator.

[0003] The winding device of the battery separator is similar to the winding method of other types of films. The battery separator is wound in a suitable tension state by applying force to the battery separator through the directionally rotating winding roller.

[0004] When the battery diaphragm is rolled to a predetermined thickness, the winding roller needs to be replaced to realize the winding process of the next rolled battery diaphragm; by setting two groups of winding rollers at different positions, continuous winding can be realized without stopping, which greatly improves the production efficiency of the battery diaphragm; however, the two fixed groups of winding rollers need to guide the battery diaphragm to different areas for winding, and the corresponding guiding devices need to be assisted; at the same time, the winding rollers located at two different positions need to be staggered by a sufficiently large distance to ensure that each group of battery diaphragms can be wound to a predetermined thickness. This solution occupies a large space volume of the equipment and requires large adjustments to the production line. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a battery diaphragm continuous winding device, which has a simple winding structure, occupies a small volume and can realize the continuous winding of the battery diaphragm.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A battery diaphragm continuous winding device comprises a mounting frame, a winding assembly is mounted on the inner wall of the mounting frame, the winding assembly comprises a winding positioning frame, the winding positioning frame is rotatably connected to the inner wall of the mounting frame via a positioning shaft, the inner wall of the winding positioning frame is rotatably connected to two winding rollers, the two winding rollers are symmetrically arranged around the positioning shaft; a driving device is also arranged on the side wall of the mounting frame, the driving device can be extended to transmit torque, the driving device is located directly above the positioning shaft, and the driving device is located on the rotation path of the winding roller.

[0008] Preferably, the winding drum and the winding positioning frame are detachably connected.

[0009] Preferably, a first positioning sleeve is fixed to the side wall of the winding drum, a second positioning sleeve is detachably connected to the outer side of the first positioning sleeve, and the second positioning sleeve is rotatably connected to the winding positioning frame.

[0010] Preferably, a thread groove is provided on the inner wall of the first positioning sleeve, and a thread line is provided on the surface of the second positioning sleeve.

[0011] Preferably, the driving device comprises two sets of retractable driving components, and the driving components comprise a driving base and a retractable driving end.

[0012] Preferably, a locking groove is formed at the driving end, and a locking protrusion matched with the locking groove is fixed on the inner wall of the second positioning sleeve.

[0013] Preferably, a conical guide cone is fixed to the driving end, and a guide opening adapted to the guide cone is opened on the inner wall of the second positioning sleeve.

[0014] Preferably, a limit detection element is fixed on the inner wall of the mounting frame, and the winding thickness of the battery separator is detected by the limit detection element.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] Through the above-mentioned structural design, the winding drum can be located in a constant position to carry out winding processing on the battery diaphragm, and the moving path of the guide device is the same, which reduces the difficulty of operation; at the same time, the overall structure can be rotatably arranged, and the unwound winding drum is in the bottom storage position, which occupies a small space, requires little adjustment of the production line, and has high adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the main structure.

[0019] Figure 3 For this utility model Figure 1 Schematic diagram of the top view structure.

[0020] Figure 4 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the second positioning sleeve of the utility model.

[0022] In the figure: 100, mounting frame; 200, winding assembly; 210, positioning shaft; 211, one-way bearing; 212, damping shaft; 220, winding positioning frame; 230, winding drum; 231, first positioning sleeve; 232, second positioning sleeve; 2321, guide opening; 2322, locking protrusion; 2323, thread line; 300, guide roller; 400, limit detection element; 410, first detection element; 420, second detection element; 500, driving device; 510, driving assembly; 511, driving base; 512, driving end; 513, locking groove; 514, guiding frustum. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0025] After stretching and surface testing, the battery separator needs to be rolled up through a winding device to facilitate subsequent storage and transportation of the battery separator.

[0026] The winding device of the battery separator is similar to the winding method of other types of films. The battery separator is wound in a suitable tension state by applying force to the battery separator through the directionally rotating winding roller.

[0027] When the battery diaphragm is rolled to a predetermined thickness, the winding roller needs to be replaced to realize the winding process of the next rolled battery diaphragm; by setting two groups of winding rollers at different positions, continuous winding can be realized without stopping, which greatly improves the production efficiency of the battery diaphragm; however, the two fixed groups of winding rollers need to guide the battery diaphragm to different areas for winding, and the corresponding guiding devices need to be assisted; at the same time, the winding rollers located at two different positions need to be staggered by a sufficiently large distance to ensure that each group of battery diaphragms can be wound to a predetermined thickness. This solution occupies a large space volume of the equipment and requires large adjustments to the production line.

[0028] In order to solve the above problems, refer to the attached Figure 1 -Attached Figure 5 A battery diaphragm continuous winding device includes a mounting frame 100, a winding assembly 200 is installed on the inner wall of the mounting frame 100, and the winding assembly 200 includes a winding positioning frame 220, and the winding positioning frame 220 is rotatably connected to the inner wall of the mounting frame 100 through a positioning shaft 210. The inner wall of the winding positioning frame 220 is rotatably connected to two winding rollers 230, and the two winding rollers 230 are symmetrically arranged around the positioning shaft 210; by setting two groups of winding rollers 230, the battery diaphragm can be wound up separately to realize the continuous winding processing of the rolled battery diaphragm and realize continuous production without stopping.

[0029] A driving device 500 is also provided on the side wall of the mounting frame 100. The driving device 500 can be extended to transmit torque. The driving device 500 is located directly above the positioning shaft 210, and the driving device 500 is located on the rotation path of the winding drum 230. The winding drum 230 is constantly located at the top position for winding processing. When the winding processing of the first group of winding drums 230 is completed, the driving device 500 is controlled to shrink and staggered with the winding drum 230. At this time, the first group of winding drums 230 rotate and descend around the positioning shaft 210, and the second group of winding drums 230 rotate and rise to a predetermined winding position. At this time, the driving device 500 is controlled to extend again to continuously complete the winding process.

[0030] It should be noted here that a one-way bearing 211 is installed on the first side of the positioning shaft 210, and a damping shaft 212 is installed on the second side to control the winding drum 230 to descend slowly inward as a whole, so as to avoid the large mass of the winding drum 230 after winding up causing impact on the bottom, and at the same time, it also avoids the swing of the winding drum 230, thereby improving the efficiency of the positioning of the winding drum 230.

[0031] In summary, through the above-mentioned structural design, the winding drum 230 can be located in a constant position to carry out winding processing on the battery diaphragm, and the moving path of the guide device is the same, which reduces the difficulty of operation; at the same time, the overall structure can be rotatably arranged, and the unwound winding drum 230 is in the bottom storage position, which occupies a small space, requires little adjustment of the production line, and has high adaptability.

[0032] The winding drum 230 is detachably connected to the winding positioning frame 220 . The winding drum 230 is removed after the bottom winding is completed, and then a new unwound winding drum 230 is installed, thereby realizing continuous winding processing of the winding drum 230 .

[0033] Specifically, a first positioning sleeve 231 is fixed to the side wall of the winding drum 230, and a second positioning sleeve 232 is detachably connected to the outer side of the first positioning sleeve 231. The second positioning sleeve 232 is rotatably connected to the winding positioning frame 220. During the installation process, the winding drum 230 is first positioned to a predetermined position, and then the second positioning sleeve 232 is passed through the outer side of the winding positioning frame 220, and the second positioning sleeve 232 is then locked and positioned with the first positioning sleeve 231, and the overall installation and locking of the winding drum 230 can be completed. Compared with the traditional method of locking with bolts from the outside using friction, the above-mentioned method has a better effect and can withstand a greater load.

[0034] Specifically, the inner wall of the first positioning sleeve 231 is provided with a thread groove, and the surface of the second positioning sleeve 232 is provided with a thread line 2323. The locking process can be completed by rotating the second positioning sleeve 232, and the installation efficiency is high and the locking effect is good.

[0035] Specifically; the driving device 500 includes two groups of retractable driving components 510, the driving components 510 include a driving base 511 and a retractable driving end 512, and the driving ends 512 here are all externally connected to a rotational power, which can control the driving ends 512 to drive the winding drum 230 to continuously rotate in one direction; at the same time, the driving end 512 here is a retractable rotating shaft, which can be retracted along the axial direction to enter the interior of the winding drum 230 to complete the locking and limiting of the winding drum 230, and then drive the winding drum 230 to continuously rotate in one direction to achieve the winding of the battery diaphragm.

[0036] A locking groove 513 is provided at the end of the driving end 512, and a locking protrusion 2322 adapted to the locking groove 513 is fixed to the inner wall of the second positioning sleeve 232. The driving end 512 is positioned during its continuous extension so that the locking protrusion 2322 can cooperate with the locking groove 513, and torque can be transmitted in a locked state, thereby greatly improving the efficiency of torque transmission.

[0037] A conical guide cone 514 is fixed to the driving end 512, and a guide opening 2321 adapted to the guide cone 514 is opened on the inner wall of the second positioning sleeve 232. By setting the above structure, the extended driving end 512 and the winding drum 230 can be automatically guided, so that the winding drum 230 can be located at a predetermined position and docked with the driving end 512, thereby ensuring the accuracy of the overall structural positioning and improving the positioning efficiency.

[0038] A limit detection element 400 is fixed on the inner wall of the mounting frame 100, and the winding thickness of the battery diaphragm is detected by the limit detection element 400. The limit detection element 400 here includes a first detection element 410 located on the first side and a second detection element 420 located on the second side. The two can locate the thickness of the winding diaphragm by laser positioning, so that when the thickness exceeds the threshold, the laser signal will be blocked, and then corresponding control instructions will be issued to remind the staff to replace the winding roller 230.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery separator continuous winding device, comprising a mounting frame (100), wherein a winding assembly (200) is mounted on an inner wall of the mounting frame (100), characterized in that: The winding assembly (200) comprises a winding positioning frame (220), the winding positioning frame (220) being rotatably connected to the inner wall of the mounting frame (100) via a positioning rotating shaft (210), the inner wall of the winding positioning frame (220) being rotatably connected to two winding rollers (230), the two winding rollers (230) being symmetrically arranged around the positioning rotating shaft (210); a driving device (500) is also arranged on the side wall of the mounting frame (100), the driving device (500) being able to extend to transmit torque, the driving device (500) being located directly above the positioning rotating shaft (210), and the driving device (500) being located on the rotation path of the winding rollers (230).

2. A battery separator continuous winding device according to claim 1, characterized in that: The winding roller (230) and the winding positioning frame (220) are detachably connected.

3. A battery separator continuous winding device according to claim 2, characterized in that: A first positioning sleeve (231) is fixed to the side wall of the winding drum (230), a second positioning sleeve (232) is detachably connected to the outside of the first positioning sleeve (231), and the second positioning sleeve (232) is rotatably connected to the winding positioning frame (220).

4. A battery separator continuous winding device according to claim 3, characterized in that: The inner wall of the first positioning sleeve (231) is provided with a thread groove, and the surface of the second positioning sleeve (232) is provided with a thread line (2323).

5. The battery separator continuous winding device according to claim 3, characterized in that: The driving device (500) comprises two sets of retractable driving components (510), and the driving components (510) comprise a driving base (511) and a retractable driving end (512).

6. A battery separator continuous winding device according to claim 5, characterized in that: The driving end (512) is provided with a locking groove (513), and a locking protrusion (2322) adapted to the locking groove (513) is fixed on the inner wall of the second positioning sleeve (232).

7. A battery separator continuous winding device according to claim 5, characterized in that: A conical guide truncated cone (514) is fixed to the driving end (512), and a guide opening (2321) adapted to the guide truncated cone (514) is formed on the inner wall of the second positioning sleeve (232).

8. The battery separator continuous winding device according to claim 1, characterized in that: A limit detection element (400) is fixed on the inner wall of the mounting frame (100), and the winding thickness of the battery separator is detected by the limit detection element (400).

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