Material belt tension control device and lamination stacking machine
By using the swing mechanism and tension holding mechanism of the strip tension control device, combined with the tension sensor and pre-tightening assembly, the problem of unstable tension of the separator strip is solved, and stable tension control of the separator strip is achieved during the lithium battery stacking process, thus improving the quality of the battery cells.
Patent Information
- Application Number
- CN202422383258.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-09-29
AI Technical Summary
During the lithium battery production process, the tension of the separator strip is prone to change during the stacking process, resulting in unstable tension and affecting the quality of the battery cell.
The belt tension control device includes a swing mechanism and a tension holding mechanism. The swing mechanism drives the belt to swing and uses tension rollers to support it alternately. Combined with tension sensors and pre-tensioning components, the support force is adjusted in real time to maintain stable belt tension.
It effectively maintains stable tension of the diaphragm tape, prevents tape redundancy or shortage, improves cell quality, avoids wrinkles and shrinkage, and enhances the stability of the stacking process.
Smart Images
Figure CN223646015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery equipment technology, and in particular to a strip tension control device and a stacking machine. Background Technology
[0002] In the production process of lithium batteries, controlling the tension of the separator strip is a common task. For example, Z-shaped lamination is a common process in the fabrication of lithium battery cells. This involves reciprocating the separator strip to achieve Z-shaped folds, and then alternately placing the positive and negative electrode sheets between the Z-shaped separator strips to form a battery cell. The separator strip needs to maintain tension after unwinding to ensure it remains taut. During the lamination process, the separator strip needs to be folded through reciprocating movement. Changes in the position of the separator strip can lead to redundancy or shortage, resulting in continuous changes in the tension of the separator strip. Utility Model Content
[0003] Therefore, it is necessary to provide a strip tension control device and a stacking machine that can maintain stable strip tension in order to address the above problems.
[0004] A belt tension control device includes a swing mechanism and a tension holding mechanism arranged sequentially on the belt conveying path. The swing mechanism can drive the belt to swing. The tension holding mechanism includes a first tension roller and a second tension roller, and a gap is formed between the first tension roller and the second tension roller for the belt to pass through.
[0005] In one embodiment, the oscillating mechanism includes an oscillating roller and a drive assembly drivenly connected to the oscillating roller, the material strip being able to wrap around the oscillating roller.
[0006] In one embodiment, the swing mechanism further includes a swing rod, one end of which is connected to the drive assembly, and the other end of which is fitted with the swing roller. The drive assembly is capable of driving the swing rod to rotate so as to drive the swing roller to swing.
[0007] In one embodiment, the drive assembly is capable of driving the oscillating roller to reciprocate.
[0008] In one embodiment, the tension holding mechanism further includes a pre-tensioning component that provides a supporting force to the first tension roller and the second tension roller acting on the strip, and the magnitude of the supporting force is adjustable.
[0009] In one embodiment, the tension holding mechanism further includes a mounting bracket, a first swing arm, and a second swing arm. One end of the first swing arm and the second swing arm are rotatably mounted on the mounting bracket, and the other end is respectively mounted on the first tension roller and the second tension roller. The pretensioning component transmits the supporting force to the first tension roller and the second tension roller respectively through the first swing arm and the second swing arm.
[0010] In one embodiment, the pretensioning assembly includes a first pretensioner and a second pretensioner, which are respectively connected to the first swing arm and the second swing arm, and provide support force to the first tension roller and the second tension roller respectively.
[0011] In one embodiment, a tension sensor is also included, which is arranged on the conveyor path of the conveyor belt.
[0012] In one embodiment, the system further includes an unwinding mechanism and a tension interruption mechanism arranged on the conveying path of the strip, the tension interruption mechanism being located between the unwinding mechanism and the oscillating mechanism.
[0013] In one embodiment, a buffer mechanism is further included, which is arranged in the conveying path of the conveyor belt and located upstream of the oscillating mechanism, and the buffer mechanism is capable of buffering or releasing the conveyor belt.
[0014] A stacking machine includes a stacking table and a strip tension control device as described in any of the preferred embodiments above.
[0015] The aforementioned tape tension control device and stacking machine allow the diaphragm tape to be laid in a Z-shape on the stacking table after passing through the oscillation mechanism and tension holding mechanism. When the tension of the diaphragm tape fluctuates significantly, the oscillation mechanism can maintain the tension of the diaphragm tape by oscillating it. During the reciprocating oscillation relative to the stacking table, the diaphragm tape alternately comes into contact with the first tension roller and the second tension roller. The first and second tension rollers act on the diaphragm tape, supporting it and effectively maintaining its tension during the oscillation process. Therefore, the combined action of the oscillation mechanism and the tension holding mechanism effectively maintains the tension stability of the diaphragm tape. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a partial structural diagram of the stacking machine in one embodiment of the present invention;
[0018] Figure 2 for Figure 1 The diagram shows the structure of the belt tension control device in the stacking machine.
[0019] Figure 3 for Figure 2 The diagram shows the structure of the tension holding mechanism in the belt tension control device.
[0020] Figure 4 for Figure 3 The top view of the tension holding mechanism shown. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] Please see Figure 1 This utility model provides a stacking machine 10 and a strip tension control device 100. The stacking machine 10 includes a strip tension control device 100 and a stacking table 200.
[0028] The tape tension control device 100 maintains the tension of the tape. For the stacking machine 10, this tape refers to the separator tape 11. The separator tape 11 used for stacking is conveyed to the stacking table 200 after passing through the tape tension control device 100. The separator tape 11 output by the tape tension control device 100 can oscillate back and forth relative to the stacking table 200, causing the separator tape 11 to be laid in a Z-shape on the stacking table 200. Simultaneously, a stacking robot (not shown) can alternately place positive and negative electrode sheets onto the separator tape 11 on the stacking table 200, folding the separator tape 11 once after each electrode is placed, thus separating adjacent electrodes by the separator tape 11. This operation is repeated until the required number of stacked electrode layers is reached, completing the fabrication of one battery cell, while the separator tape 11 laid on the stacking table 200 is folded into a "Z" shape. During the Z-shaped laying of the diaphragm tape 11, the tape tension control device 100 can maintain the tension stability of the diaphragm tape 11.
[0029] During the stacking process, the stacking table 200 can remain stationary while the diaphragm tape 11 is moved back and forth by the tape tension control device 100. Obviously, in other embodiments, the tape tension control device 100 can also remain stationary while the stacking table 200 moves back and forth to drive the diaphragm tape 11 to complete the Z-shaped laying.
[0030] Please refer to the following: Figure 2 In one embodiment of the present invention, the belt tension control device 100 includes a swing mechanism 110 and a tension holding mechanism 120.
[0031] The oscillating mechanism 110 and the tension holding mechanism 120 are sequentially arranged on the conveying path of the diaphragm belt 11. The diaphragm belt 11 used for stacking can pass through the oscillating mechanism 110 and the tension holding mechanism 120 in sequence. The diaphragm belt 11 passing through the oscillating mechanism 110 can be tensioned by the oscillating mechanism 110. Moreover, the oscillating mechanism 110 can drive the diaphragm belt 11 to oscillate. When the diaphragm belt 11 becomes slack and the tension decreases, the oscillating mechanism 110 can drive the diaphragm belt 11 to oscillate in one direction and further tighten it, thereby increasing the tension of the diaphragm belt 11. When the diaphragm belt 11 is over-tightened and the tension is too large, the oscillating mechanism 110 can drive the diaphragm belt 11 to oscillate in the opposite direction and relax it, thereby reducing the tension of the diaphragm belt 11.
[0032] Please refer to the following: Figure 3 and Figure 4 The tension holding mechanism 120 includes a first tension roller 121 and a second tension roller. A gap is formed between the first tension roller 121 and the second tension roller 122 for the diaphragm material strip 11 to pass through. The diaphragm material strip 11 passing through the tension holding mechanism 120 passes between the first tension roller 121 and the second tension roller 122.
[0033] During the stacking process, the diaphragm strip 11 is output from the tension holding mechanism 120 and oscillates back and forth relative to the stacking table 200, thereby oscillating back and forth between the first tension roller 121 and the second tension roller 122. Moreover, during the oscillation of the diaphragm strip 11, it can be alternately supported by the first tension roller 121 and the second tension roller 122, thereby tensioning the diaphragm strip 11.
[0034] Furthermore, the tension holding mechanism 120 also includes a pre-tensioning component 123, which provides a supporting force to the first tension roller 121 and the second tension roller 122 acting on the diaphragm strip 11, and the magnitude of the supporting force is adjustable. The supporting force provided by the pre-tensioning component 123 acts on the diaphragm strip 11 through the first tension roller 121 and the second tension roller 122, thereby tensioning the diaphragm strip 11 and maintaining a preset tension. When the diaphragm strip 11 swings toward the first tension roller 121, the first tension roller 121 can abut against the diaphragm strip 11 and tension it; when the diaphragm strip 11 swings toward the second tension roller 122, the second tension roller 122 can abut against the diaphragm strip 11 and tension it.
[0035] by Figure 3 As shown in the example, the first tension roller 121 is located on the left and the second tension roller 122 is located on the right, and the diaphragm strip 11 swings left and right during the stacking process. When the diaphragm strip 11 swings to the left, the first tension roller 121 can come into contact with the diaphragm strip 11 and tighten it; when the diaphragm strip 11 swings to the right, the second tension roller 122 can come into contact with the diaphragm strip 11 and tighten it. Moreover, by controlling the supporting force of the first tension roller 121 and the second tension roller 122 in real time, the tension of the diaphragm strip 11 can be controlled to maintain the preset tension.
[0036] More specifically, when the diaphragm belt 11 swings to the left and is tensioned by the first tension roller 121, if the tension of the diaphragm belt 11 is detected to be greater than the preset tension, the pre-tensioning component 123 can reduce the supporting force of the first tension roller 121 on the diaphragm belt 11, thereby reducing the tension of the diaphragm belt 11 and making the tension of the diaphragm belt 11 decrease and approach the preset tension; if the tension of the diaphragm belt 11 is detected to be less than the preset tension, the pre-tensioning component 123 can increase the supporting force of the first tension roller 121 on the diaphragm belt 11, thereby increasing the tension of the diaphragm belt 11 and making the tension of the diaphragm belt 11 increase and approach the preset tension.
[0037] Similarly, when the diaphragm belt 11 swings to the right and is tensioned by the second tension roller 122, if the tension of the diaphragm belt 11 is detected to be greater than the preset tension, the pre-tensioning component 123 can reduce the supporting force of the second tension roller 122 on the diaphragm belt 11, thereby reducing the tension of the diaphragm belt 11; and if the tension of the diaphragm belt 11 is detected to be less than the preset tension, the pre-tensioning component 123 can increase the supporting force of the second tension roller 122 on the diaphragm belt 11, thereby increasing the tension of the diaphragm belt 11.
[0038] Because the oscillating mechanism 110 can drive the diaphragm strip 11 to oscillate within a larger range, it can adjust the tension of the diaphragm strip 11 within a wider range compared to the tension holding mechanism 120. Therefore, when the tension of the diaphragm strip 11 fluctuates significantly, the oscillating mechanism 110 can adjust the tension of the diaphragm strip 11 by driving it to oscillate. When the tension fluctuation of the diaphragm strip 11 is small, the pre-tensioning assembly 123 can adjust the supporting force applied to the first tension roller 121 and the second tension roller 122, thereby fine-tuning the tension of the diaphragm strip 11. It can be seen that the oscillating mechanism 110 and the tension holding mechanism 120, through two-stage adjustment of the tension of the diaphragm strip 11, can better maintain the tension stability of the diaphragm strip 11.
[0039] Please refer to it again. Figure 2 Specifically, in this embodiment, the belt tension control device 100 further includes a tension sensor 130 arranged on the conveying path of the diaphragm belt 11. The tension sensor 130 can monitor the tension of the diaphragm belt 11 in real time, so that the swing mechanism 120 can swing the diaphragm belt 11 in real time, and the pretensioning assembly 123 can dynamically adjust the supporting force of the first tension roller 121 and the second tension roller 122 according to the real-time tension, thereby accurately controlling the tension of the diaphragm belt 11.
[0040] In this embodiment, the belt tension control device 100 further includes a buffer mechanism 140, which is arranged in the conveying path of the diaphragm belt 11 and located upstream of the swing mechanism 110. The buffer mechanism 140 can buffer or release the diaphragm belt 11.
[0041] The unwound diaphragm strip 11 passes through a buffer mechanism 140 before passing through the oscillating mechanism 110. The buffer mechanism 140 generally includes multiple buffer rollers (not shown), and the relative positions of the multiple buffer rollers are variable. The diaphragm strip 11 passing through the buffer mechanism can sequentially wind around the multiple buffer rollers, and by changing the relative positions of the multiple buffer rollers, the length of the diaphragm strip 11 winding around the multiple buffer rollers can be changed, thereby achieving buffering or release of the diaphragm strip 11.
[0042] When there is redundancy in the separator strip 11, the buffer mechanism 140 can buffer the redundant separator strip 11; conversely, when there is a shortage of separator strip 11, the buffer mechanism 140 can release the separator strip 11 to compensate for the shortage. This prevents the separator strip 11 from becoming loose or breaking. Therefore, with the cooperation of the buffer mechanism 140, the oscillating mechanism 110, and the tension holding mechanism 120, the tension of the separator strip 11 can be maintained relatively stably during the stacking process, thereby avoiding problems such as wrinkles and shrinkage of the separator strip 11, and contributing to improved cell quality.
[0043] Obviously, in other embodiments, if the diaphragm strip 11 fluctuates little during actual operation, the buffer mechanism 140 may also be omitted.
[0044] Furthermore, in this embodiment, the strip tension control device 100 also includes an unwinding mechanism 150 and a tension interruption mechanism 160. The tension interruption mechanism 160 is arranged on the conveying path of the diaphragm strip 11 and is located between the unwinding mechanism 150 and the oscillating mechanism 110. More specifically, the tension interruption mechanism 160 is located between the unwinding mechanism 150 and the buffer mechanism 140.
[0045] The unwinding mechanism 150 may include a tensioning shaft, on which the roll of diaphragm tape 11 can be pre-clamped. Before passing through the oscillating mechanism 110, the diaphragm tape 11 unwound by the unwinding mechanism 150 passes through a tension isolation mechanism 160. The tension isolation mechanism 160 can isolate the tension of the diaphragm tape 11 between the oscillating mechanism 110 and the unwinding mechanism 150. That is, the tension of the diaphragm tape 11 on both sides of the tension isolation mechanism 160 may differ, and the tension isolation mechanism 160 can isolate the unwinding tension, preventing tension fluctuations during the unwinding process from being transmitted to the oscillating mechanism 110 and the tension holding mechanism 120. In this way, tension fluctuations during the unwinding process can be avoided from interfering with the diaphragm tape 11 during the lamination process, thereby further improving the tension stability of the diaphragm tape 11 during the lamination process.
[0046] Specifically, the tension disconnect mechanism 160 may employ two sets of opposing clamping rollers, through which the diaphragm strip 11 passes and is clamped between the two sets of clamping rollers, and at least one set of clamping rollers is a drive roller capable of conveying the diaphragm strip 11 downstream.
[0047] Please refer to it again. Figure 2 In this embodiment, the swing mechanism 110 includes a swing roller 111 and a drive assembly 112 that is connected to the swing roller 111 in a transmission manner, and the diaphragm belt 11 can be wound around the swing roller 111.
[0048] The drive assembly 112 can be driven by a cylinder, motor, or the like, and can drive the oscillating roller 111 to move back and forth, thereby causing the diaphragm strip 11 to oscillate around the oscillating roller 111. The oscillating roller 111 can rotate around its own axis, so during the oscillation of the diaphragm strip 11, the oscillating roller 111 can roll along the surface of the diaphragm strip 11, thereby avoiding scratching the diaphragm strip 11.
[0049] Furthermore, in this embodiment, the oscillating mechanism 110 also includes an oscillating rod 113. One end of the oscillating rod 113 is connected to the drive assembly 112, and the other end is equipped with an oscillating roller 111. The drive assembly 112 can drive the oscillating rod 113 to rotate so as to drive the oscillating roller 111 to oscillate. When the drive assembly 112 drives the oscillating rod 113 to rotate, the oscillating rod 113 can drive the oscillating roller 111 at the other end to move along an arc-shaped trajectory, thus further reducing the friction between the diaphragm strip 11 and the oscillating roller 111.
[0050] In addition, in other embodiments, the drive assembly 112 can also drive the oscillating roller 111 to reciprocate or move horizontally, such as left or right, and can also drive the diaphragm strip 11 that passes around the oscillating roller 111 to oscillate, thereby adjusting the tension of the diaphragm strip 11.
[0051] Please refer to it again. Figure 3 and Figure 4 In this embodiment, the tension holding mechanism 120 further includes a mounting bracket 124, a first swing arm 125 and a second swing arm 126. One end of the first swing arm 125 and the second swing arm 126 is rotatably mounted on the mounting bracket 124, and the other end is respectively mounted with a first tension roller 121 and a second tension roller 122. The pre-tightening component 123 transmits the supporting force to the first tension roller 121 and the second tension roller 122 respectively through the first swing arm 125 and the second swing arm 126.
[0052] Specifically, the mounting bracket 124 is provided with a first rotating shaft 127 and a second rotating shaft 128 that are parallel to each other, and a first swing arm 125 and a second swing arm 126 are respectively mounted on the first rotating shaft 127 and the second rotating shaft 128. The first rotating shaft 127 and the second rotating shaft 128 can rotate around their own axes, thereby enabling the first swing arm 125 and the second swing arm 126 to swing.
[0053] The positions of the first tension roller 121 and the second tension roller 122 can also change under the action of the diaphragm belt 11. For example, when the tension of the diaphragm belt 11 suddenly increases, the reaction force of the diaphragm belt 11 acting on the first tension roller 121 and the second tension roller 122 will be greater than the supporting force, thereby forcing the first tension roller 121 and the second tension roller 122 to retract, so as to play a buffering role and prevent the diaphragm belt 11 from breaking. Moreover, during the retraction of the first tension roller 121 and the second tension roller 122, the first swing arm 125 and the second swing arm 126 swing, and the movement trajectory of the first tension roller 121 and the second tension roller 122 is arc-shaped, so the friction between the first tension roller 121 and the second tension roller 122 and the diaphragm belt 11 can also be reduced.
[0054] Specifically, in this embodiment, the first tension roller 121 and the second tension roller 122 are rotatably mounted on the first swing arm 125 and the second swing arm 126, respectively, and can rotate around their own axes. In this way, the first tension roller 121 and the second tension roller 122 can roll along the surface of the diaphragm material belt 11 when they abut against it, thereby avoiding scratching the diaphragm material belt 11.
[0055] Furthermore, in this embodiment, the pretensioning assembly 123 includes a first pretensioner 1231 and a second pretensioner 1232. The first pretensioner 1231 and the second pretensioner 1232 are respectively connected to the first swing arm 125 and the second swing arm 126, and provide support force for the first tension roller 121 and the second tension roller 122 respectively.
[0056] Since the first pretensioner 1231 and the second pretensioner 1232 can provide support force for the first tension roller 121 and the second tension roller 122 respectively, the support force of the first tension roller 121 and the second tension roller 122 acting on the diaphragm strip 11 can be controlled and adjusted separately, thereby improving the accuracy of tension control for the diaphragm strip 11.
[0057] Specifically, both the first pretensioner 1231 and the second pretensioner 1232 can be cylinders, and are controlled in real time by an electro-proportional valve. A control signal is generated based on the real-time tension of the diaphragm belt 11. The electro-proportional valve can control the air intake and exhaust of the cylinders according to the control signal, thereby adjusting the supporting force provided by the first pretensioner 1231 and the second pretensioner 1232 to the first tension roller 121 and the second tension roller 122 in real time to ensure that the diaphragm belt 11 maintains the preset tension.
[0058] It should be noted that in other embodiments, the first pretensioner 1231 and the second pretensioner 1232 may also be springs, which generate a supporting force provided to the first tension roller 121 and the second tension roller 122 through pre-compression. Moreover, the supporting force of the first tension roller 121 and the second tension roller 122 can be adjusted by controlling the pre-compression amount of the spring in real time.
[0059] The aforementioned tape tension control device 100 and stacking machine 10 allow the diaphragm tape 11 to be laid in a Z-shape on the stacking table 200 after passing through the oscillation mechanism 110 and tension holding mechanism 120. When the tension of the diaphragm tape 11 fluctuates significantly, the oscillation mechanism 110 can maintain the tension of the diaphragm tape 11 by oscillating it. During the reciprocating oscillation relative to the stacking table 200, the diaphragm tape 11 alternately contacts the first tension roller 121 and the second tension roller 122. The supporting force exerted by the first tension roller 121 and the second tension roller 121 on the diaphragm tape 11 can be adjusted by the pre-tensioning component 123, thereby fine-tuning the tension of the diaphragm tape 11. Therefore, the oscillation mechanism 110 and the tension holding mechanism 120 can perform two-stage adjustment of the tension of the diaphragm tape 11 during the stacking process, thus effectively maintaining the tension stability of the diaphragm tape 11.
[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A material belt tension control device, characterized in that, The device includes a swing mechanism and a tension holding mechanism arranged sequentially on the conveyor path of the material belt. The swing mechanism can drive the material belt to swing. The tension holding mechanism includes a first tension roller, a second tension roller, and a pre-tensioning assembly. A gap is formed between the first tension roller and the second tension roller for the material belt to pass through.
2. The belt tension control device according to claim 1, characterized in that, The oscillating mechanism includes an oscillating roller and a drive assembly that is driven to the oscillating roller, and the material strip can be wound around the oscillating roller.
3. The belt tension control device according to claim 2, characterized in that, The swing mechanism further includes a swing rod, one end of which is connected to the drive assembly, and the other end of which is equipped with the swing roller. The drive assembly can drive the swing rod to rotate so as to drive the swing roller to swing.
4. The belt tension control device according to claim 2, characterized in that, The drive assembly is capable of driving the oscillating roller to reciprocate and translate.
5. The belt tension control device according to claim 1, characterized in that, The tension holding mechanism further includes a pre-tensioning component, which provides a supporting force to the first tension roller and the second tension roller acting on the strip, and the magnitude of the supporting force is adjustable.
6. The belt tension control device according to claim 5, characterized in that, The tension holding mechanism further includes a mounting bracket, a first swing arm, and a second swing arm. One end of the first swing arm and the second swing arm are rotatably mounted on the mounting bracket, and the other end is respectively mounted on the first tension roller and the second tension roller. The pre-tightening component transmits the supporting force to the first tension roller and the second tension roller respectively through the first swing arm and the second swing arm.
7. The belt tension control device according to claim 6, characterized in that, The pretensioning assembly includes a first pretensioner and a second pretensioner, which are respectively connected to the first swing arm and the second swing arm, and provide support force to the first tension roller and the second tension roller respectively.
8. The belt tension control device according to claim 1, characterized in that, It also includes a tension sensor arranged on the conveyor belt path.
9. The belt tension control device according to claim 1, characterized in that, It also includes an unwinding mechanism and a tension interruption mechanism arranged on the conveying path of the material belt, wherein the tension interruption mechanism is located between the unwinding mechanism and the oscillating mechanism.
10. The belt tension control device according to any one of claims 1 to 9, characterized in that, It also includes a buffer mechanism arranged in the conveying path of the material belt and located upstream of the oscillating mechanism, the buffer mechanism being capable of buffering or releasing the material belt.
11. A stacking machine, characterized in that, It includes a stacking table and a strip tension control device as described in any one of claims 1 to 10 above.