Tension control device and lamination stacking machine

Abstract

The utility model relates to a tension control device and a lamination machine. The tension control device comprises a tensioning mechanism, a tension control mechanism, a main driving mechanism and a swinging mechanism, a diaphragm material belt can sequentially pass through the tensioning mechanism, the main driving mechanism, the tension control mechanism and the swing mechanism, and finally Z-shaped laying is achieved on the lamination table. And the main driving mechanism can cut off tension, so that the diaphragm material belt is divided into an unwinding section and a lamination section. The unwinding section and the lamination section are respectively tensioned by the tensioning mechanism and the tension control mechanism, so that the tension of the unwinding section and the tension of the lamination section can be independently controlled. And moreover, the swing roller can swing to temporarily store the diaphragm material belt, so that the withdrawing amount of the diaphragm material belt of the lamination section in the lamination process can be absorbed, and the phenomenon that the lamination section is loosened and withdrawn to the unwinding section is avoided. Therefore, the tension control device and the lamination stacking machine can realize segmented control on the tension of the diaphragm material belt in the unwinding process, so that the tension stability of the diaphragm material belt is effectively maintained.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery equipment technology, and in particular to a tension control device and a stacking machine. Background Technology

[0002] In the production process of lithium batteries, tension control of various material strips is involved. For example, in the Z-shaped stacking process, the separator strip needs to maintain stable tension after unwinding. If the tension of the separator strip is too high, it will cause problems such as wrinkles and tears; while if the tension is too low, it will cause problems such as looseness and vibration, directly affecting the quality of the battery cell. However, because the separator strip is constantly in motion during the stacking process, its tension is prone to fluctuation. Utility Model Content

[0003] Therefore, it is necessary to provide a tension control device and stacking machine that can effectively maintain stable strip tension to address the above problems.

[0004] A tension control device includes a tensioning mechanism, a tension control mechanism, a main drive mechanism, and a swing mechanism; the main drive mechanism is disposed between the tensioning mechanism and the tension control mechanism, and the main drive mechanism includes a main drive roller and a first drive assembly drivenly connected to the main drive roller; the swing mechanism is disposed downstream of the tension control mechanism, and the swing mechanism includes a swing roller and a second drive assembly drivenly connected to the swing roller.

[0005] In one embodiment, the tensioning mechanism includes a first tensioning roller and a first tensioning assembly connected to the first tensioning roller, and the tension control mechanism includes a second tensioning roller and a second tensioning assembly connected to the second tensioning roller.

[0006] In one embodiment, the swing mechanism further includes a swing rod, one end of which is connected to the second drive assembly, and the swing roller is mounted on the end of the swing rod away from the second drive assembly.

[0007] In one embodiment, a buffer mechanism is further included, disposed between the tensioning mechanism and the main drive mechanism, the buffer mechanism comprising a plurality of buffer rollers.

[0008] In one embodiment, a tension sensor is also included, which is disposed between the tension control mechanism and the swing mechanism.

[0009] In one embodiment, the device further includes an unwinding mechanism and a tape receiving mechanism, wherein the unwinding mechanism is disposed upstream of the tensioning mechanism, and the tape receiving mechanism is disposed between the tensioning mechanism and the unwinding mechanism.

[0010] In one embodiment, a tension buffer mechanism is further included, which is disposed on the side of the swing mechanism away from the tension control mechanism. The tension buffer mechanism includes a first tension roller, a second tension roller, and a third tensioning assembly, and the third tensioning assembly is connected to the first tension roller and the second tension roller.

[0011] In one embodiment, the tension buffer 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 third tensioning component is connected to the first tension roller and the second tension roller through the first swing arm and the second swing arm, respectively.

[0012] A stacking machine includes a stacking table and a tension control device as described in any of the above embodiments.

[0013] In one embodiment, the device further includes a swing roller device disposed between the tension control device and the stacking table, the swing roller device including a clamping roller assembly and a third drive assembly that is drively connected to the clamping roller assembly.

[0014] In the aforementioned tension control device and stacking machine, the diaphragm strip sequentially passes through the tensioning mechanism, main drive mechanism, tension control mechanism, and oscillating mechanism, ultimately achieving a Z-shaped layup on the stacking table. The main drive mechanism can interrupt tension, thereby dividing the diaphragm strip into an unwinding section and a stacking section. The unwinding section and the stacking section are tensioned by the tensioning mechanism and the tension control mechanism respectively, so the tension of the unwinding section and the stacking section can be controlled independently. Moreover, the oscillation of the oscillating roller can also buffer the diaphragm strip, thereby absorbing the amount of diaphragm strip pullback in the stacking section during the stacking process, preventing the stacking section from becoming loose and pulling back to the unwinding section. Therefore, the aforementioned tension control device and stacking machine can achieve segmented tension control of the diaphragm strip during the unwinding process, thereby effectively maintaining the tension stability of the diaphragm strip. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a partial structural diagram of the stacking machine in one embodiment of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the tension control device in the stacking machine shown;

[0018] Figure 3 for Figure 2 A schematic diagram of the main drive mechanism in the tension control device shown.

[0019] Figure 4 for Figure 2 A schematic diagram of the swing mechanism in the tension control device shown.

[0020] Figure 5 for Figure 2 A schematic diagram of the tension buffer mechanism in the tension control device shown.

[0021] Figure 6 for Figure 5 The top view of the tension buffer mechanism shown. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Please see Figure 1 This utility model provides a stacking machine 10 and a tension control device 100. The stacking machine 10 includes a tension control device 100 and a stacking table 200.

[0029] Tension control device 100 is used to maintain stable tension of the strip. For the stacking machine 10, this strip refers to the diaphragm strip 11, which is used for stacking and is conveyed to the stacking table 200 after passing through tension control device 100. The diaphragm strip 11 output by tension control device 100 can oscillate back and forth relative to the stacking table 200, allowing it to be laid in a Z-shape on the stacking table 200. Simultaneously, the stacking robot (not shown) can alternately place positive and negative electrodes onto the diaphragm strip 11 on the stacking table 200, folding the strip 11 once after each electrode is placed, thus separating adjacent electrodes by the diaphragm strip 11.

[0030] Repeat the above operation until the number of electrode layers stacked on the stacking table 200 reaches the required number, thus completing the preparation of a battery cell. The separator strip 11 laid on the stacking table 200 is folded into a "Z" shape. During the Z-shaped laying process of the separator strip 11, the tension control device 100 can maintain the tension stability of the separator strip 11 well, avoiding the separator strip 11 from being too large or too small, thereby ensuring the quality of the battery cell.

[0031] Specifically, in this embodiment, the stacking machine 10 further includes a swing roller device 300 disposed between the tension control device 100 and the stacking table 200. The swing roller device 300 includes a clamping roller assembly (not shown) and a third drive assembly (not shown) that is drively connected to the clamping roller assembly.

[0032] The diaphragm strip 11, output by the tension control device 100, first passes through the oscillating roller device 300, and then is laid on the stacking table 200 under the drive of the oscillating roller device 300. Specifically, the clamping roller assembly generally includes two sets of opposing clamping rollers, and the diaphragm strip 11 can be passed between the two sets of clamping rollers. The clamping roller assembly can reciprocate in one direction (usually the width direction of the stacking table 200) under the drive of the third drive component, thereby driving the diaphragm strip 11 to oscillate back and forth and achieve Z-shaped laying. In this way, the stacking table 200 can maintain a constant position during the stacking process.

[0033] Of course, in other embodiments, the swing roller device 300 may be omitted, and the stacking table 200 may be moved back and forth to drive the diaphragm strip 11 to complete the Z-shaped laying.

[0034] Please refer to the following: Figure 2 In one embodiment of the present invention, the tension control device 100 includes a tensioning mechanism 110, a tension control mechanism 120, a main drive mechanism 130, and a swing mechanism 140.

[0035] The tensioning mechanism 110, tension control mechanism 120, main drive mechanism 130, and oscillating mechanism 140 are all arranged on the conveying path of the diaphragm belt 11, with the main drive mechanism 130 located between the tensioning mechanism 110 and the tension control mechanism 120, and the oscillating mechanism 140 located downstream of the tension control mechanism 120. During the stacking process, the diaphragm belt 11 will pass through the tensioning mechanism 110, the main drive mechanism 130, the tension control mechanism 120, and the oscillating mechanism 140 in sequence.

[0036] Both the tensioning mechanism 110 and the tension control mechanism 120 can tension the passing diaphragm strip 11 and adjust the tension of the diaphragm strip 11. Specifically, in this embodiment, the tensioning mechanism 110 includes a first tensioning roller 111 and a first tensioning component 112 connected to the first tensioning roller 111, and the tension control mechanism 120 includes a second tensioning roller 121 and a second tensioning component 122 connected to the second tensioning roller 121.

[0037] The tensioning mechanism 110 and the tension control mechanism 120 can have identical structures, differing only in their placement. The diaphragm strip 11 can wrap around the first tensioning roller 111 and the second tensioning roller 121. The first tensioning assembly 112 and the second tensioning assembly 122 provide preload to the first tensioning roller 111 and the second tensioning roller 121, respectively, thereby tensioning the diaphragm strip 11. Furthermore, the preload provided by the first tensioning assembly 112 and the second tensioning assembly 122 is typically adjustable, thus allowing for adjustment of the tension level of the diaphragm strip 11, i.e., the tension force.

[0038] Specifically, the first tensioning assembly 112 and the second tensioning assembly 122 can use components such as cylinders, springs or sheet springs to provide pre-tensioning force, as long as the first tensioning roller 111 and the second tensioning roller 121 can tension the diaphragm strip 11, and their specific structure is not limited.

[0039] Please refer to the following: Figure 3 The main drive mechanism 130 includes a main drive roller 131 and a first drive assembly 132 that is drively connected to the main drive roller 131. The first drive assembly 132 may be composed of components such as a servo motor and a reducer, and can provide driving force to the main drive roller 131. The diaphragm belt 11 can wrap around the main drive roller 131 and form a large wrap angle on the main drive roller 131. Therefore, a large interaction force can be generated between the main drive roller 131 and the diaphragm belt 11, so that the diaphragm belt 11 can be smoothly conveyed under the drive of the main drive roller 131.

[0040] Furthermore, the main drive mechanism 130 can also serve to interrupt tension, thereby dividing the diaphragm strip 11 into an unwinding section close to the stacking table 200 and a stacking section away from the stacking table 200. Moreover, the unwinding section and the stacking section will be tensioned by the tensioning mechanism 110 and the tension control mechanism 120 respectively, so the tension of the unwinding section and the stacking section can be adjusted and controlled independently without interfering with each other.

[0041] Please refer to the following: Figure 4 The oscillating mechanism 140 includes an oscillating roller 141 and a second drive assembly 142 that is drively connected to the oscillating roller 141. The diaphragm strip 11 can pass around the oscillating roller 141, which can reciprocate under the drive of the second drive assembly 142, thereby causing the diaphragm strip 11 to oscillate. When the diaphragm strip 11 becomes slack, the oscillating roller 141 can cause the diaphragm strip 11 to oscillate in one direction and further tighten it; while when the diaphragm strip 11 is over-tightened, the oscillating roller 141 can cause the diaphragm strip 11 to oscillate in the opposite direction to relax the diaphragm strip 11.

[0042] Specifically, the second drive assembly 142 can be driven by components such as cylinders and motors, and can drive the oscillating roller 141 to move back and forth. The oscillating roller 141 can rotate around its own axis, so during the process of driving the diaphragm material belt 11 to oscillate, the oscillating roller 141 can roll along the surface of the diaphragm material belt 11, thereby avoiding scratching the diaphragm material belt 11.

[0043] During the lamination process, the diaphragm strip 11 output by the tension control device 100 needs to move back and forth, causing the actual length of the diaphragm strip 11 between the tension control device 100 and the lamination table 200 to change dynamically. This makes the diaphragm strip 11 prone to pullback, resulting in significant slack in the diaphragm strip 11 of the lamination segment. At this time, the second drive assembly 142 can drive the oscillating roller 141 to oscillate and buffer the diaphragm strip 11, thereby absorbing the pullback amount of the diaphragm strip 11 of the lamination segment and preventing the lamination segment from slack and pulling back to the unwinding segment. It can be seen that with the cooperation of the main drive mechanism 130 and the oscillating mechanism 140, the tension of the diaphragm strip 11 is precisely controlled in segments during the unwinding process, effectively ensuring the tension stability of the diaphragm strip 11.

[0044] Specifically, in this embodiment, the swing mechanism 140 further includes a swing rod 143, one end of which is connected to the second drive assembly 142, and a swing roller 141 is mounted on the end of the swing rod 143 away from the second drive assembly 142. The second drive assembly 142 can drive the swing rod 143 to rotate, and when the swing rod 143 rotates, it can drive the swing roller 141 at the other end to move along an arc-shaped trajectory, thus further reducing the friction between the diaphragm strip 11 and the swing roller 141.

[0045] Furthermore, specifically in this embodiment, the tension control device 100 also includes a tension sensor 160, which is disposed between the tension control mechanism 120 and the swing mechanism 140. The tension sensor 160 can monitor the tension of the diaphragm strip 11 in real time, and the stability of the tension control device 100 can be determined based on the tension fluctuation of the stacked segments measured by the tension sensor 160. Moreover, the tension sensor 160 can also feed back the measured tension to the control module (not shown) to facilitate closed-loop control of the tension of the diaphragm strip 11.

[0046] Please refer to it again. Figure 2 In this embodiment, the tension control device 100 further includes a buffer mechanism 150, which is disposed between the tensioning mechanism 110 and the main drive mechanism 130. The buffer mechanism 150 includes a plurality of buffer rollers 151, and the relative positions of the plurality of buffer rollers 151 are adjustable.

[0047] Before passing through the main drive mechanism 130, the diaphragm material belt 11 passes through the buffer mechanism 150. The diaphragm material belt 11 passing through the buffer mechanism 150 can sequentially wrap around multiple buffer rollers 151. By changing the relative position of the multiple buffer rollers 151, the length of the diaphragm material belt 11 that wraps around the multiple buffer rollers can be changed, thereby achieving buffering or release of the diaphragm material belt 11.

[0048] When there is redundancy in the diaphragm tape 11, the buffer mechanism 150 can buffer the redundant diaphragm tape 11; conversely, when there is a shortage of diaphragm tape 11, the buffer mechanism 150 can release the diaphragm tape 11 to compensate for the shortage. This allows for better matching of the unwinding and stacking speeds, preventing the diaphragm tape 11 from becoming loose or breaking. With the cooperation of the buffer mechanism 150, the diaphragm tape 11 in the unwinding section can maintain better stability, avoiding problems such as wrinkles and shrinkage, further reducing the impact on the stacking section.

[0049] In this embodiment, the tension control device 100 further includes an unwinding mechanism 170 and a tape receiving mechanism 180. The unwinding mechanism 170 is disposed on the upstream side of the tensioning mechanism 110, and the tape receiving mechanism 180 is disposed between the tensioning mechanism 110 and the unwinding mechanism 170.

[0050] The unwinding mechanism 170 may include a tensioning shaft, on which the roll of diaphragm tape 11 can be pre-clamped. The diaphragm tape 11 unwound by the unwinding mechanism 170 passes through the tape-connecting mechanism 180 before entering the tensioning mechanism 110. The tape-connecting mechanism 180 can connect the end of the previous roll of diaphragm tape 11 to the beginning of the next roll of diaphragm tape 11 during the unwinding process, thereby ensuring that the diaphragm tape 11 can be continuously unwound, thus ensuring that the stacking process is uninterrupted.

[0051] In addition, please refer to the following: Figure 5 and Figure 6 In this embodiment, the tension control device 100 further includes a tension buffer mechanism 190, which is disposed downstream of the swing mechanism 140. The tension buffer mechanism 190 includes a first tension roller 191, a second tension roller 192, and a third tensioning assembly 193, which is connected to the first tension roller 191 and the second tension roller 192.

[0052] A gap is typically formed between the first tension roller 191 and the second tension roller 192. The diaphragm strip 11 output by the tension control device 100 passes through the gap between the first tension roller 191 and the second tension roller 192 to be conveyed to the stacking table 200. During the stacking process, the diaphragm strip 11 oscillates back and forth relative to the stacking table 200, thereby oscillating back and forth between the first tension roller 191 and the second tension roller 192. During the reciprocating oscillation of the diaphragm strip 11, it can be alternately supported by the first tension roller 191 and the second tension roller 192, thereby tensioning the diaphragm strip 11.

[0053] The third tensioning assembly 193 provides a supporting force to the first tension roller 191 and the second tension roller 192 on the diaphragm strip 11, and the magnitude of the supporting force is generally adjustable. The supporting force provided by the third tensioning assembly 1933 acts on the diaphragm strip 11 through the first tension roller 191 and the second tension roller 192, thereby tensioning the diaphragm strip 11 and maintaining a preset tension. When the diaphragm strip 11 swings toward the first tension roller 191, the first tension roller 191 abuts against the diaphragm strip 11 and tensions it; when the diaphragm strip 11 swings toward the second tension roller 192, the second tension roller 192 abuts against the diaphragm strip 11 and tensions it.

[0054] by Figure 5 As shown in the example, the first tension roller 191 is located on the left and the second tension roller 192 is located on the right. 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 191 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 192 can come into contact with the diaphragm strip 11 and tighten it. Moreover, by controlling the supporting force of the first tension roller 191 and the second tension roller 192 in real time, the tension of the diaphragm strip 11 can be controlled to maintain the preset tension.

[0055] More specifically, when the diaphragm belt 11 swings to the left and is tensioned by the first tension roller 191, if the tension of the diaphragm belt 11 is detected to be greater than the preset tension, the third tensioning component 193 can reduce the supporting force of the first tension roller 191 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 third tensioning component 193 can increase the supporting force of the first tension roller 191 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.

[0056] Similarly, when the diaphragm strip 11 swings to the right and is tensioned by the second tension roller 192, if the tension of the diaphragm strip 11 is detected to be greater than the preset tension, the third tensioning component 193 can reduce the supporting force of the second tension roller 192 on the diaphragm strip 11, thereby reducing the tension of the diaphragm strip 11; conversely, if the tension of the diaphragm strip 11 is detected to be less than the preset tension, the third tensioning component 193 can increase the supporting force of the second tension roller 192 on the diaphragm strip 11, thereby increasing the tension of the diaphragm strip 11. It can be seen that under the action of the tension buffer mechanism 190, fine adjustments can be made in real time according to the tension changes of the diaphragm strip 11, thereby further reducing the tension fluctuation amplitude of the stacked segments' diaphragm strip 11.

[0057] Furthermore, in this embodiment, the tension buffer mechanism 190 also includes a mounting bracket 194, a first swing arm 195, and a second swing arm 196. One end of the first swing arm 195 and the second swing arm 196 is rotatably mounted on the mounting bracket 194, and the other end is respectively mounted on the first tension roller 191 and the second tension roller 192. The third tensioning assembly 193 is connected to the first tension roller 191 and the second tension roller 192 through the first swing arm 195 and the second swing arm 196, respectively.

[0058] Specifically, the mounting bracket 194 is provided with a first rotating shaft 127 and a second rotating shaft 198 that are parallel to each other, and a first swing arm 195 and a second swing arm 196 are respectively mounted on the first rotating shaft 197 and the second rotating shaft 198. The first rotating shaft 197 and the second rotating shaft 198 can rotate around their own axes, thereby enabling the first swing arm 195 and the second swing arm 196 to swing.

[0059] The positions of the first tension roller 191 and the second tension roller 192 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 191 and the second tension roller 192 will be greater than the supporting force, thereby forcing the first tension roller 191 and the second tension roller 192 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 191 and the second tension roller 192, the first swing arm 195 and the second swing arm 196 swing, and the movement trajectory of the first tension roller 191 and the second tension roller 192 is arc-shaped, so the friction between the first tension roller 191 and the second tension roller 192 and the diaphragm belt 11 can also be reduced.

[0060] More specifically, the first tension roller 191 and the second tension roller 192 are rotatably mounted on the first swing arm 195 and the second swing arm 196, respectively, and are capable of rotating around their own axes. In this way, the first tension roller 191 and the second tension roller 192 can roll along the surface of the diaphragm strip 11 when they abut against it, thereby avoiding scratching the diaphragm strip 11.

[0061] Two third tensioning components 193 are typically provided, and are respectively connected to the first swing arm 195 and the second swing arm 196 to provide support force to the first tension roller 191 and the second tension roller 192. Therefore, the support force of the first tension roller 191 and the second tension roller 192 acting on the diaphragm strip 11 can be controlled independently, thereby improving the accuracy of tension control for the diaphragm strip 11.

[0062] Specifically, the third tensioning component 193 can be a cylinder, which is controlled in real time by an electro-proportional valve. A control signal can be generated based on the real-time tension of the diaphragm belt 11. The electro-proportional valve can control the air intake and exhaust volume of the cylinder according to the control signal, thereby adjusting the support force provided by the third tensioning component 193 to the first tension roller 191 or the second tension roller 192 in real time.

[0063] It should be noted that, in other embodiments, the third tensioning assembly 193 may also employ elastic elements such as springs or sheet springs. The elastic element generates a supporting force provided to the first tension roller 191 and the second tension roller 192 through pre-compression. Moreover, the supporting force of the first tension roller 191 and the second tension roller 192 can be adjusted by controlling the pre-compression amount of the elastic element in real time.

[0064] The aforementioned tension control device 100 and stacking machine 10 allow the diaphragm strip 11 to pass sequentially through the tensioning mechanism 110, main drive mechanism 130, tension control mechanism 120, and oscillating mechanism 140, ultimately achieving a Z-shaped laying on the stacking table 200. The main drive mechanism 130 can interrupt tension, thereby dividing the diaphragm strip 11 into an unwinding section and a stacking section. The unwinding section and the stacking section are tensioned by the tensioning mechanism 110 and the tension control mechanism 120, respectively, so the tension of the unwinding section and the stacking section can be controlled independently. Moreover, the oscillation of the oscillating roller 141 can also buffer the diaphragm strip 11, thereby absorbing the amount of diaphragm strip 11 retraction during the stacking process, preventing the stacking section from becoming loose and retracting back to the unwinding section. Therefore, the aforementioned tension control device 100 and stacking machine 10 can achieve segmented tension control of the diaphragm strip 11 during the unwinding process, thereby effectively maintaining the tension stability of the diaphragm strip 11.

[0065] 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.

[0066] 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 tension control device, characterized by, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

2. The tension control device of claim 1, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

3. The tension control device of claim 1, wherein, The swing mechanism further comprises a swing rod, one end of the swing rod being connected with the second driving assembly, and the swing roller being installed at the end of the swing rod away from the second driving assembly.

4. The tension control device of claim 1, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

5. The tension control device of claim 1, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

6. The tension control device of claim 1, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

7. The tension control device according to any one of claims 1 to 6, characterized in that The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

8. The tension control device of claim 7, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

9. A lamination machine characterized by, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

10. The lamination machine of claim 9, wherein, The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller. The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller. The tensioning mechanism comprises a first tensioning roller and a first tensioning assembly connected with the first tensioning roller, and the tension control mechanism comprises a second tensioning roller and a second tensioning assembly connected with the second tensioning roller.

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