A winding machine diaphragm belt running micro-tension adjusting structure

Abstract

The utility model relates to a kind of winding machine diaphragm belt running micro-tension adjusting structure, including diaphragm roll, servo tension swing lever mechanism, diaphragm traction mechanism, tension detector, control system and multiple diaphragm roller, diaphragm roll unwinding diaphragm is guided through multiple diaphragm roller in turn through servo tension swing lever mechanism, diaphragm traction mechanism, tension detector reaches winding assembly after, and the detection tension of diaphragm is detected by tension detector, control system is pre-set with qualified tension value, control system sends control signal to diaphragm traction mechanism according to the comparison of detection tension and qualified tension value, when detection tension is greater than qualified tension value;Diaphragm traction mechanism accelerates diaphragm traction, when detection tension is less than qualified tension value;Diaphragm traction mechanism slows down diaphragm traction, realize the stability in extremely small micro-tension range, avoid diaphragm to be broken due to tension too large and stretch, thickness is uneven, or due to tension too small and appear wrinkle, run deviation etc., satisfy production requirement.

Description

Technical Field

[0001] This utility model relates to the field of sheet winding machines, specifically to a micro-tension adjustment structure for the diaphragm belt of a winding machine. Background Technology

[0002] Currently, for fully automated lithium-ion battery sheet winding machines, lithium battery separators are typically extremely thin (5-20 μm). The separator material is soft and has limited mechanical strength. During processing, excessive tension can cause the separator to stretch longitudinally, reducing or even closing the pores, affecting electrolyte wetting and ion conduction. Insufficient tension, on the other hand, can cause the separator to loosen during processing, leading to interlayer misalignment and even direct contact and short circuit between the positive and negative electrodes. Stable micro-tension can ensure uniform cell winding density, reduce interlayer stress, and lower the risk of bulging during later cycles. Therefore, it is necessary to develop a mechanism to adjust the separator tension. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a micro-tension adjustment structure for the diaphragm belt of a winding machine, the specific technical solution of which is as follows: A micro-tension adjustment structure for diaphragm conveying in a winding machine includes a diaphragm roll, a servo tension swing arm mechanism, a diaphragm traction mechanism, a tension detector, a control system, and multiple diaphragm rollers. The diaphragm roll is guided by the multiple diaphragm rollers, sequentially passing through the servo tension swing arm mechanism, the diaphragm traction mechanism, and the tension detector before reaching the winding assembly. The tension detector detects the tension of the diaphragm. The control system has a preset qualified tension value. Based on the comparison between the detected tension and the qualified tension value, the control system sends a control signal to the diaphragm traction mechanism. When the detected tension is greater than the qualified tension value, the diaphragm traction mechanism accelerates the traction of the diaphragm; when the detected tension is less than the qualified tension value, the diaphragm traction mechanism decelerates the traction of the diaphragm.

[0004] In a preferred embodiment of this utility model, the plurality of diaphragm rollers include a first diaphragm roller, a second diaphragm roller, a third diaphragm roller, a fourth diaphragm roller, a fifth diaphragm roller, a sixth diaphragm roller, a seventh diaphragm roller, an eighth diaphragm roller, a ninth diaphragm roller, a tenth diaphragm roller, an eleventh diaphragm roller, and a twelfth diaphragm roller. The first diaphragm roller is located to the left below the diaphragm roll, the second diaphragm roller is located to the right of the first diaphragm roller and is lower than the first diaphragm roller, the third diaphragm roller is located below the second diaphragm roller, the fourth diaphragm roller is located below the third diaphragm roller and is mounted on one end of the swing arm of the servo tension swing arm mechanism, the fifth diaphragm roller and the sixth diaphragm roller are located above and below the servo tension swing arm mechanism, respectively, with the fifth diaphragm roller closer to the fourth diaphragm roller and the sixth diaphragm roller closer to the seventh diaphragm roller. The seventh diaphragm roller is installed at the other end of the servo tension swing arm mechanism. The eighth diaphragm roller is located below the seventh diaphragm roller. The diaphragm traction mechanism is located to the right of the eighth diaphragm roller and below it. The ninth diaphragm roller is installed at the tension detector and to the left of the diaphragm traction mechanism. The tenth diaphragm roller is located to the right below the ninth diaphragm roller. The eleventh diaphragm roller is located below the tenth diaphragm roller. The twelfth diaphragm roller is located below the eleventh diaphragm roller. The diaphragm material roll passes through the first diaphragm roller, the second diaphragm roller, the third diaphragm roller, the fourth diaphragm roller, the fifth diaphragm roller, the sixth diaphragm roller, the seventh diaphragm roller, the eighth diaphragm roller, the diaphragm traction mechanism, the ninth diaphragm roller, the tenth diaphragm roller, the twelfth diaphragm roller, and the eleventh diaphragm roller in sequence before reaching the diaphragm traction mechanism.

[0005] As a preferred embodiment of this utility model, the diaphragm traction mechanism includes a servo traction motor, a coupling, and a traction wheel. The output shaft of the servo traction motor is connected to the traction wheel through the coupling, and the diaphragm is wound around the traction wheel.

[0006] As a preferred embodiment of this utility model, the servo tension rocker arm mechanism includes a servo rocker arm motor, a coupling, and a rocker arm, with the output shaft of the servo rocker arm motor connected to the rocker arm via the coupling.

[0007] Beneficial effects: When the detected tension is greater than the qualified tension value, the diaphragm traction mechanism accelerates the traction of the diaphragm; when the detected tension is less than the qualified tension value, the diaphragm traction mechanism decelerates the traction of the diaphragm, thus maintaining stability within a very small tension range. This avoids problems such as stretching and breakage of the diaphragm due to excessive tension, uneven thickness, or wrinkles and deviation due to insufficient tension, ensuring battery performance and safety and meeting production requirements. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a perspective view of the diaphragm traction mechanism of this utility model. Detailed Implementation

[0009] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings: In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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 position 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.

[0010] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0011] like Figure 1 and 2 As shown, a micro-tension adjustment structure for a diaphragm conveyor belt in a winding machine includes a diaphragm roll 1, a servo tension swing arm mechanism 2, a diaphragm traction mechanism 3, a tension detector 4, a control system, and multiple diaphragm rollers. After the diaphragm roll 1 unwinds the diaphragm A, the diaphragm A is guided by multiple diaphragm rollers to pass sequentially through the servo tension swing arm mechanism 2, the diaphragm traction mechanism 3, and the tension detector 4 before reaching the winding assembly 6. The tension detector 4 detects the tension of the diaphragm. The control system has a preset qualified tension value. The control system sends a control signal to the diaphragm traction mechanism 3 based on the comparison between the detected tension and the qualified tension value. When the detected tension is greater than the qualified tension value, i.e., the diaphragm is taut, the diaphragm traction mechanism accelerates the traction of the diaphragm. When the detected tension is less than the qualified tension value, i.e., the diaphragm is loose, the diaphragm traction mechanism decelerates the traction of the diaphragm, thereby achieving diaphragm tension adjustment within a small range.

[0012] Specifically, the plurality of diaphragm rollers include a first diaphragm roller 51, a second diaphragm roller 52, a third diaphragm roller 53, a fourth diaphragm roller 54, a fifth diaphragm roller 55, a sixth diaphragm roller 56, a seventh diaphragm roller 57, an eighth diaphragm roller 58, a ninth diaphragm roller 59, a tenth diaphragm roller 510, an eleventh diaphragm roller 511, and a twelfth diaphragm roller 512. The first diaphragm roller 57 is located on the left side below the diaphragm roll 1, and the second diaphragm roller 52 is located on the right side below the first diaphragm roll 1. The membrane roller 51 is located to the right of and below the first diaphragm roller 51. The third diaphragm roller 53 is located below the second diaphragm roller 52. The fourth diaphragm roller 54 is located below the third diaphragm roller 53 and is mounted on one end of the swing arm of the servo tension swing arm mechanism 2. The fifth diaphragm roller 55 and the sixth diaphragm roller 56 are located above and below the servo tension swing arm mechanism 2, respectively. The fifth diaphragm roller 55 is close to the fourth diaphragm roller 54, and the sixth diaphragm roller 56 is close to the seventh diaphragm roller 57. The seventh diaphragm roller 57... Installed on the other end of the swing arm of the servo tension swing arm mechanism 2, the eighth diaphragm roller 58 is located below the seventh diaphragm roller 57, the diaphragm traction mechanism 3 is located to the right of the eighth diaphragm roller 58 and below it, the ninth diaphragm roller 59 is installed at the tension detector 4 and is located to the left of the diaphragm traction mechanism 3, the tenth diaphragm roller 510 is located below the ninth diaphragm roller 59 to the right, the eleventh diaphragm roller 511 is located below the tenth diaphragm roller 510, and the twelfth diaphragm roller... 512 is located at the eleventh diaphragm roller 511. The diaphragm material is unwound and wound sequentially through the first diaphragm roller 51, the second diaphragm roller 52, the third diaphragm roller 53, the fourth diaphragm roller 54, the fifth diaphragm roller 55, the sixth diaphragm roller 56, the seventh diaphragm roller 57, the eighth diaphragm roller 58, the diaphragm traction mechanism 3, the ninth diaphragm roller 59, the tenth diaphragm roller 510, the twelfth diaphragm roller 512, and the eleventh diaphragm roller 511 before reaching the diaphragm traction mechanism 3.

[0013] Specifically, the diaphragm traction mechanism 3 includes a servo traction motor 31, a coupling 32, and a traction wheel 33. The output shaft of the servo traction motor is connected to the traction wheel 33 via the coupling. The diaphragm A is wound around the traction wheel 33, and the servo traction motor 31 controls the rotation speed of the traction wheel 33 to adjust the belt conveyor speed. Additionally, the servo tension rocker mechanism includes a servo rocker motor, a coupling, and a rocker arm. The output shaft of the servo rocker motor is connected to the rocker arm via the coupling, and the servo rocker motor drives the rocker arm to rotate and swing, changing its position.

[0014] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.

Claims

1. A micro-tension adjustment structure for the diaphragm belt of a winding machine, characterized in that: The system includes a diaphragm roll, a servo tension swing arm mechanism, a diaphragm traction mechanism, a tension detector, a control system, and multiple diaphragm rollers. The diaphragm roll is unwound and guided by the multiple rollers, sequentially passing through the servo tension swing arm mechanism, the diaphragm traction mechanism, and the tension detector before reaching the winding assembly. The tension detector detects the diaphragm's tension. The control system has a preset acceptable tension value. Based on the comparison between the detected tension and the acceptable tension value, the control system sends a control signal to the diaphragm traction mechanism. When the detected tension is greater than the acceptable tension value, the diaphragm traction mechanism accelerates the traction of the diaphragm; when the detected tension is less than the acceptable tension value, the diaphragm traction mechanism decelerates the traction of the diaphragm.

2. The micro-tension adjustment structure for the diaphragm belt of a winding machine according to claim 1, characterized in that: Multiple diaphragm rollers include a first diaphragm roller, a second diaphragm roller, a third diaphragm roller, a fourth diaphragm roller, a fifth diaphragm roller, a sixth diaphragm roller, a seventh diaphragm roller, an eighth diaphragm roller, a ninth diaphragm roller, a tenth diaphragm roller, an eleventh diaphragm roller, and a twelfth diaphragm roller. The first diaphragm roller is located to the left below the diaphragm roll. The second diaphragm roller is located to the right of the first diaphragm roller and below it. The third diaphragm roller is located below the second diaphragm roller. The fourth diaphragm roller is located below the third diaphragm roller and is mounted on one end of the swing arm of the servo tension swing arm mechanism. The fifth and sixth diaphragm rollers are located above and below the servo tension swing arm mechanism, respectively. The fifth diaphragm roller is close to the fourth diaphragm roller, and the sixth diaphragm roller is close to the seventh diaphragm roller. The seventh diaphragm roller is mounted on... At the other end of the servo tension lever mechanism, the eighth diaphragm roller is located below the seventh diaphragm roller, the diaphragm traction mechanism is located to the right of the eighth diaphragm roller and below it, the ninth diaphragm roller is installed at the tension detector and is located to the left of the diaphragm traction mechanism, the tenth diaphragm roller is located below the ninth diaphragm roller to the right, the eleventh diaphragm roller is located below the tenth diaphragm roller, and the twelfth diaphragm roller is located at the eleventh diaphragm roller. The diaphragm material roll passes through the first diaphragm roller, the second diaphragm roller, the third diaphragm roller, the fourth diaphragm roller, the fifth diaphragm roller, the sixth diaphragm roller, the seventh diaphragm roller, the eighth diaphragm roller, the diaphragm traction mechanism, the ninth diaphragm roller, the tenth diaphragm roller, the twelfth diaphragm roller, and the eleventh diaphragm roller in sequence before reaching the diaphragm traction mechanism.

3. The micro-tension adjustment structure for the diaphragm belt of a winding machine according to claim 1, characterized in that: The diaphragm traction mechanism includes a servo traction motor, a coupling, and a traction wheel. The output shaft of the servo traction motor is connected to the traction wheel through the coupling, and the diaphragm is wound around the traction wheel.

4. The micro-tension adjustment structure for the diaphragm belt of a winding machine according to claim 1, characterized in that: The servo tension rocker arm mechanism includes a servo rocker arm motor, a coupling, and a rocker arm. The output shaft of the servo rocker arm motor is connected to the rocker arm through the coupling.

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