Tail roll mechanism of laminating machine

Abstract

The utility model relates to the technical field of laminating machines, and discloses a laminating machine tail roll mechanism which comprises a support, a rotary driving part, a transmission assembly, a first mounting plate, a pneumatic executing part, a soft air inlet and outlet pipe and a clamping assembly. The rotary driving piece is arranged on the support. The transmission assembly is arranged on the support and connected with the rotary driving piece. The first mounting plate is connected with the transmission assembly, and the rotation driving piece can drive the first mounting plate to rotate through the transmission assembly. The pneumatic execution part is arranged on the first mounting plate and provided with a first air inlet and outlet and a second air inlet and outlet, and the first air inlet and outlet is communicated with the atmosphere. One end of the soft air inlet and outlet pipe is communicated with the second air inlet and outlet, and the other end is selectively communicated with a positive pressure air source and / or a negative pressure air source. The clamping assembly comprises two clamping jaws, the two clamping jaws are both connected with the pneumatic execution part, and the pneumatic execution part is used for driving the two clamping jaws to do opening and closing movement so as to clamp or release the battery cell.

Description

TECHNICAL FIELD

[0001] The utility model relates to a laminating machine technical field, in particular to a laminating machine tail roll mechanism. BACKGROUND

[0002] The laminating of power square lithium battery is a key process of lithium ion battery manufacturing, compared with winding process, laminating process is market favored with the advantages of high volume utilization, stable structure, small internal resistance, long cycle life and so on, and becomes a rising star. The quality of laminating process directly affects the quality of the battery. The existing laminating machine tail roll mechanism generally drives the clamping jaw to clamp the battery by the pneumatic actuator, so as to roll the tail of the battery, and the gas slide ring capable of rotating relative to the clamping jaw is arranged, the gas inlet pipe and the gas outlet pipe of the pneumatic actuator are connected on the gas slide ring, so as to avoid the gas inlet pipe and the gas outlet pipe from winding each other during the rotation of the clamping jaw clamping the battery, thereby affecting the gas inlet and outlet of the pneumatic actuator. However, the setting of the gas slide ring will increase the length of the laminating machine tail roll mechanism, which is not conducive to the setting and installation of the tail roll mechanism in the narrow space, and the longer size will also aggravate the vibration of the tail roll mechanism during the rotation of the clamping jaw.

[0003] Therefore, there is an urgent need for a laminating machine tail roll mechanism to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a laminating machine tail roll mechanism, which shortens the size of the laminating machine tail roll mechanism without affecting the operation of the pneumatic actuator.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A laminating machine tail roll mechanism comprises:

[0007] a support;

[0008] a rotary drive element arranged on the support;

[0009] a transmission assembly arranged on the support and connected with the rotary drive element;

[0010] a first mounting plate connected with the transmission assembly, and the rotary drive element can drive the first mounting plate to rotate through the transmission assembly;

[0011] a pneumatic actuator arranged on the first mounting plate, the pneumatic actuator is provided with a first gas inlet and outlet and a second gas inlet and outlet, and the first gas inlet and outlet are communicated with the atmosphere;

[0012] a soft gas inlet and outlet pipe, one end of which is communicated with the second gas inlet and outlet, and the other end is selectively communicated with a positive pressure source and / or a negative pressure source;

[0013] The clamping assembly comprises two clamping jaws, both of which are connected with the pneumatic actuator, and the pneumatic actuator is used to drive the two clamping jaws to open and close to clamp or release the battery cell.

[0014] As an improvement of the above technical solution, it further comprises:

[0015] The air inlet pipe is in communication with one end of the soft inlet and outlet air pipe away from the pneumatic actuator, and the other end is connected with a positive pressure air source.

[0016] The first control valve is arranged on the air inlet pipe.

[0017] The air outlet pipe is in communication with one end of the soft inlet and outlet air pipe away from the pneumatic actuator, and the other end is connected with a negative pressure air source.

[0018] The second control valve is arranged on the air outlet pipe.

[0019] As an improvement of the above technical solution, the pneumatic actuator is a parallel opening and closing type air claw, and the two clamping jaws are arranged on the two air claws of the pneumatic actuator respectively.

[0020] As an improvement of the above technical solution, it further comprises a guide assembly, the guide assembly comprises a second mounting plate and a plurality of cross roller guides, the second mounting plate is fixedly arranged on the side wall of the pneumatic actuator, the clamping jaw is arranged on the side of the second mounting plate away from the pneumatic actuator, and the two clamping jaws are slidably connected with the second mounting plate through the cross roller guides respectively.

[0021] As an improvement of the above technical solution, the clamping jaw comprises:

[0022] The mounting block is arranged on the pneumatic actuator, the first guide is fixedly arranged on the mounting block, and the pneumatic actuator can drive the mounting block to move along the cross roller guide.

[0023] The clamping jaw mounting plate is arranged on the mounting block.

[0024] The tab clamping plate is arranged on the clamping jaw mounting plate.

[0025] The clamping jaw finger mounting plate is arranged at both ends of the clamping jaw mounting plate.

[0026] As an improvement of the above technical solution, the clamping jaw further comprises a first connecting piece, both ends of the clamping jaw mounting plate are provided with a strip-shaped hole extending along the length direction of the clamping jaw mounting plate, the clamping jaw finger mounting plate is provided with a first connecting hole, and the first connecting piece passes through the first connecting hole and the strip-shaped hole to connect the clamping jaw finger mounting plate and the clamping jaw mounting plate.

[0027] As the improvement of the above technical scheme, the lug clamp plate is provided with a plurality of lightening holes.

[0028] As the improvement of the above technical scheme, the clamping assembly further comprises an elastic member, which is clamped between the mounting blocks of the two clamping jaws.

[0029] As the improvement of the above technical scheme, the clamping assembly further comprises an elastic member, which is clamped between the mounting blocks of the two clamping jaws.

[0030] As the improvement of the above technical scheme, the clamping assembly further comprises an elastic member, which is clamped between the mounting blocks of the two clamping jaws.

[0031] Compared with the prior art, the utility model has the beneficial effects that:

[0032] The laminating machine tail roll mechanism of the utility model, through one soft inlet and outlet air pipe cooperation positive pressure gas source and / or negative pressure gas source control to pneumatic actuator, because soft inlet and outlet air pipe only set up one, in the process that first mounting plate drives clamping assembly rotation, soft inlet and outlet air pipe is not easy to knot winding, thus need not set up air slide ring for soft inlet and outlet air pipe again, under the condition that guarantee pneumatic actuator normal operation, the size of laminating machine tail roll mechanism is shortened, and the laminating machine tail roll mechanism is convenient to install and use in narrow space, and shorter size is also favorable to reduce the vibration of tail roll mechanism when clamping jaw rotates. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the structure schematic of the laminating machine tail roll mechanism provided by the utility model embodiment Figure 1 ;

[0034] Figure 2 It is the enlarged view of A in Figure 1

[0035] Figure 3 It is the structure schematic of the laminating machine tail roll mechanism provided by the utility model embodiment Figure 2 ;

[0036] Figure 4 It is the side view of partial structure of the laminating machine tail roll mechanism provided by the utility model embodiment

[0037] Figure 5 ​It is the air inlet and outlet principle drawing of the pneumatic actuator of the laminating machine tail roll mechanism.

[0038] In the figure:

[0039] 11, support; 12, rotary driving part;

[0040] 13, transmission assembly; 131, driving pulley; 132, synchronous belt; 133, driven pulley;

[0041] 14, first mounting plate;

[0042] 15, pneumatic actuator; 151, first air inlet and outlet; 152, second air inlet and outlet;

[0043] 16, soft air inlet and outlet pipe;

[0044] 17, clamping assembly;

[0045] 171, clamping jaw;

[0046] 1711, mounting block; 17111, sliding block; 17112, fixed plate;

[0047] 1712, clamping jaw mounting plate; 17121, strip-shaped hole; 1713, tab clamping plate; 17131, weight-reducing hole; 1714, clamping jaw finger mounting plate;

[0048] 172, elastic member;

[0049] 173, limiting screw;

[0050] 18, air inlet pipe; 19, first control valve; 20, air outlet pipe; 21, second control valve;

[0051] 22, guide assembly;

[0052] 221, second mounting plate; 2211, sliding groove;

[0053] 222, cross roller guide; 2221, first guide rail; 2222, second guide rail;

[0054] 23, positioning assembly; 231, first positioning block; 232, second positioning block; 233, positioning rod;

[0055] 24, sensing assembly; 241, sensing sheet; 242, rotation in-place inductor;

[0056] 25, pressure reducing valve; 26, tee joint. DETAILED DESCRIPTION

[0057] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0058] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present application, the terms "up", "down", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0061] As Figures 1-5As shown, the embodiment provides a laminated machine tail winding mechanism, which comprises a support 11, a rotary driving member 12, a transmission assembly 13, a first mounting plate 14, a pneumatic actuator 15, a soft inlet and outlet air pipe 16 and a clamping assembly 17. The rotary driving member 12 is arranged on the support 11. The transmission assembly 13 is arranged on the support 11 and connected with the rotary driving member 12. The first mounting plate 14 is connected with the transmission assembly 13, and the rotary driving member 12 can drive the first mounting plate 14 to rotate through the transmission assembly 13. The pneumatic actuator 15 is arranged on the first mounting plate 14, and the pneumatic actuator 15 is provided with a first inlet and outlet air port 151 and a second inlet and outlet air port 152, and the first inlet and outlet air port 151 is communicated with the atmosphere. One end of the soft inlet and outlet air pipe 16 is communicated with the second inlet and outlet air port 152, and the other end is selectively communicated with a positive pressure source and / or a negative pressure source. The clamping assembly 17 comprises two clamping jaws 171, and the two clamping jaws 171 are connected with the pneumatic actuator 15. The pneumatic actuator 15 is used to drive the two clamping jaws 171 to open and close, so as to clamp and release the battery core.

[0062] The laminated machine tail winding mechanism provided by the embodiment controls the pneumatic actuator 15 through a soft inlet and outlet air pipe 16 cooperating with a positive pressure source and / or a negative pressure source. Since only one soft inlet and outlet air pipe 16 is arranged, the soft inlet and outlet air pipe 16 is not easy to be knotted and entangled during the rotation of the first mounting plate 14 driving the clamping assembly 17, so it is not necessary to arrange an air slip ring for the soft inlet and outlet air pipe 16. In the case of ensuring the normal operation of the pneumatic actuator 15, the size of the laminated machine tail winding mechanism is shortened, which is convenient for the installation and use of the laminated machine tail winding mechanism in a narrow space. The shorter size is also conducive to reducing the vibration of the tail winding mechanism when the clamping jaw 171 rotates.

[0063] Optionally, as shown in Figure 1 and Figure 3 , the rotary driving member 12 is a motor, which has an output shaft. The transmission assembly 13 comprises a driving pulley 131, a synchronous belt 132, a driven pulley 133 and a transmission shaft. The driving pulley 131 is connected with the output shaft of the rotary driving member 12. The transmission shaft is rotatably arranged on the support 11 through a bearing. The transmission shaft has a first end and a second end arranged oppositely. The driven pulley 133 is fixedly arranged on the first end of the transmission shaft. The first mounting plate 14 is fixedly arranged on the second end of the transmission shaft. The rotary driving member 12 is used to drive the driving pulley 131 to rotate. The driving pulley 131 drives the driven pulley 133 to rotate through the synchronous belt 132. The driven pulley 133 drives the first mounting plate 14 to rotate through the transmission shaft. The driving pulley 131, the synchronous belt 132 and the driven pulley 133 are used for transmission, which can effectively avoid transmission tolerance and hidden damage, has high-precision transmission force torque, does not need to worry about looseness, transmission precision and gap problems, and can ensure the accurate control of the rotation angle of the clamping assembly 17.

[0064] Optionally, the pneumatic actuator 15 is a parallel opening and closing type air claw, and two clamping claws 171 are arranged on the two claws of the pneumatic actuator 15 respectively, and the two claws drive the two clamping claws 171 to perform opening and closing movement to clamp and release the battery cell.

[0065] During the tail winding process, the clamping assembly 17 performs both rotating movement and opening and closing movement. Since the winding needle has a long force arm from the self-rotating driving member 12, the winding needle has large circular runout during the rotating process, and the opening and closing process also produces shaking, and the two effects are superimposed, so it is difficult to ensure the stability of the pole piece position.

[0066] To solve the above problems, as shown in Figures 1-4 The tail winding mechanism of the laminating machine provided by the embodiment further includes a guide assembly 22, and the guide assembly 22 includes a second mounting plate 221 and a cross roller guide 222. The second mounting plate 221 is fixedly arranged on the side wall of the pneumatic actuator 15, the clamping claw 171 is arranged on the side of the second mounting plate 221 away from the pneumatic actuator 15, and the two clamping claws 171 are slidably connected to the second mounting plate 221 through the cross roller guide 222. The second mounting plate 221 and the cross roller guide 222 cooperate to guide the two clamping claws 171. The cross roller guide 222 has high rigidity and high load, and the characteristics of the cross roller guide 222 can avoid the displacement of the pole piece and the wrinkling of the diaphragm caused by shaking of the clamping claw 171 during movement, thereby solving the problems of battery overhang defects, appearance defects, and missing outer pole pieces caused by the displacement of the pole piece and the wrinkling of the diaphragm.

[0067] Specifically, as shown in Figures 1-4 Each clamping claw 171 is provided with one cross roller guide 222 on each side, that is, the two cross roller guides 222 cooperate to guide one clamping claw 171, and the two clamping claws 171 are provided with four cross roller guides 222 in total. Each cross roller guide 222 includes a first guide rail 2221 and a second guide rail 2222 that are slidably connected, the first guide rail 2221 of the cross roller guide 222 is fixed to the side wall of the clamping claw 171, that is, one first guide rail 2221 is fixedly arranged on each side of each clamping claw 171, and the second guide rail 2222 of the cross roller guide 222 is fixed to the side of the second mounting plate 221 away from the pneumatic actuator 15, and four second guide rails 2222 are fixedly arranged on the second mounting plate 221.

[0068] Optionally, as shown in Figure 1 , Figure 3 and Figure 4As shown, the clamping jaw 171 comprises a mounting block 1711, a clamping jaw mounting plate 1712, a tab clamping plate 1713 and a clamping jaw finger mounting plate 1714. The mounting block 1711 is fixedly arranged on the pneumatic actuator 15. The cross roller guide 222 connects the mounting block 1711 and the second mounting plate 221. The pneumatic actuator 15 can drive the mounting block 1711 to move along the cross roller guide 222. The clamping jaw mounting plate 1712 is arranged on the mounting block 1711. The tab clamping plate 1713 is arranged on the clamping jaw mounting plate 1712. The clamping jaw mounting plate 1712 is provided with the clamping jaw finger mounting plate 1714 at both ends.

[0069] Further, as shown in Figures 1-4 The mounting block 1711 comprises a sliding block 17111 and a fixed plate 17112. The fixed plate 17112 is fixed to the side of the sliding block 17111 away from the second mounting plate 221. The second mounting plate 221 is provided with a sliding groove 2211. The extension direction of the sliding groove 2211 is the same as that of the cross roller guide 222. The bottom of the sliding groove 2211 is provided with a strip-shaped hole 17121 extending along the extension direction of the sliding groove 2211. The air claw extends into the strip-shaped hole 17121. The sliding block 17111 is fixed to the corresponding air claw. The pneumatic actuator 15 drives the sliding block 17111 to slide along the sliding groove 2211 through the air claw. The second guide rail 2222 of the cross roller guide 222 is fixed to the inner side wall of the sliding groove 2211. The inner side wall of each side of the sliding groove 2211 is provided with two second guide rails 2222. The first guide rail 2221 of the cross roller guide 222 is fixed to the side wall of the sliding block 17111. The clamping jaw mounting plates 1712 on the two fixed plates 17112 are arranged on the sides of the two fixed plates 17112 facing each other. The tab clamping plates 1713 and the clamping jaw finger mounting plates 1714 on the two clamping jaw mounting plates 1712 are arranged on the sides of the two clamping jaw mounting plates 1712 facing each other. The clamping jaw 171 further comprises a second connecting piece and a third connecting piece. The clamping jaw mounting plate 1712 is detachably connected with the fixed plate 17112 through the second connecting piece. The tab clamping plate 1713 is detachably connected with the clamping jaw mounting plate 1712 through the third connecting piece. The fixed plate 17112 and the tab clamping plate 1713 are both located in the middle of the length direction of the clamping jaw mounting plate 1712. In this embodiment, the second connecting piece and the third connecting piece are both screws.

[0070] Further, the clamping jaw 171 further comprises a first connecting member, the clamping jaw mounting plate 1712 is provided with a strip-shaped hole 17121 extending along the length direction of the clamping jaw mounting plate 1712, and the clamping jaw finger mounting plate 1714 is provided with a first connecting hole, the first connecting member passes through the first connecting hole and the strip-shaped hole 17121 to connect the clamping jaw finger mounting plate 1714 and the clamping jaw mounting plate 1712. The strip-shaped hole 17121 allows the installation position of the clamping jaw finger mounting plate 1714 to be adjusted along the strip-shaped hole 17121, so that the clamping jaw 171 in the embodiment can adapt to battery cells of different sizes.

[0071] Further, as shown in Figure 1 and Figure 3 , the tab clamp plate 1713 is provided with a plurality of lightening holes 17131 to reduce the weight of the tab clamp plate 1713, reduce the rigidity of the tab clamp plate 1713, and prevent the tab clamp plate 1713 from damaging the tab due to excessive pressure. The tab clamp plate 1713 is chamfered to prevent indentation on the surface of the battery cell.

[0072] Optionally, the clamping assembly 17 further comprises a resilient member 172 clamped between the mounting blocks 1711 of the two clamping jaws 171. When the two clamping jaws 171 clamp the battery cell, the resilient member 172 is compressed, and when the two clamping jaws 171 release the battery cell, the elastic force of the resilient member 172 can drive the two clamping jaws 171 to open in time and quickly, avoiding scratching the battery cell due to slow opening or failure to open completely of the clamping jaws 171. In the embodiment, the resilient member 172 is a spring. Preferably, the resilient member 172 is detachably connected between the two clamping jaws 171 to facilitate replacement of the resilient member 172.

[0073] Further, as shown in Figure 1 and Figure 3 , the clamping assembly 17 further comprises a guide rod and a limiting screw 173, the resilient member 172 is sleeved on the guide rod, the two fixed plates 17112 are each provided with a guide hole, the two fixed plates 17112 are each sleeved on one end of the guide rod through the guide hole, and the two limiting screws 173 are each threadedly connected to the end face of one end of the guide rod. The limiting screw 173 is coaxially arranged with the guide rod, and the limiting screw 173 limits the stroke of the clamping jaw 171. When the clamping jaw 171 opens to the maximum stroke, the fixed plate 17112 abuts against the nut of the limiting screw 173. When the resilient member 172 needs to be replaced, only one of the two limiting screws 173 needs to be removed, and the guide rod is pulled out from the end of the limiting screw 173 that is not removed, so that the resilient member 172 can be replaced.

[0074] Optionally, as shown in Figure 1 , Figure 3 and Figure 4As shown, the lamination tail winding mechanism provided by the embodiment further comprises a positioning assembly 23, the positioning assembly 23 comprises a first positioning block 231, a second positioning block 232 and a positioning rod 233, the first positioning block 231 is arranged on the support 11, the second positioning block 232 is arranged on the first mounting plate 14, the first positioning block 231 and the second positioning block 232 are both provided with positioning holes through which the positioning rod 233 passes, and the positioning rod 233 connects the first positioning block 231 and the second positioning block 232 by passing through the two positioning holes. When the lamination tail winding mechanism is installed, the initial position of the first mounting plate 14 is positioned by inserting the positioning rod 233 into the positioning holes on the first positioning block 231 and the second positioning block 232, so that the initial position of the clamping assembly 17 meets the design requirements.

[0075] Optionally, as shown in Figure 1 and Figure 3 As shown, the lamination tail winding mechanism provided by the embodiment further comprises a sensing assembly 24, the sensing assembly 24 comprises a sensing sheet 241 and a rotation-to-position inductor 242, and the sensing sheet 241 and the rotation-to-position inductor 242 are arranged on the first mounting plate 14 and the support 11 respectively. When the sensing sheet 241 passes through the rotation-to-position inductor 242, the rotation-to-position inductor 242 can send a signal, so that the number of rotation turns of the first mounting plate 14 can be counted through the cooperation of the sensing sheet 241 and the rotation-to-position inductor 242, so that the number of rotation turns of the battery cell meets the design requirements.

[0076] Preferably, the lamination tail winding mechanism provided by the embodiment, the soft inlet and outlet air pipe 16 is selectively communicated with the positive pressure air source and the negative pressure air source, and specifically, as shown in Figure 5As shown, the tail roll mechanism of the laminating machine provided in the embodiment further comprises an air inlet pipe 18, a first control valve 19, an air outlet pipe 20 and a second control valve 21. In the embodiment, the first control valve 19 is a three-position five-way electromagnetic valve, and the second control valve 21 is a two-position three-way electromagnetic valve. In other embodiments, other types of electromagnetic valves can also be selected. One end of the air inlet pipe 18 is in communication with the end of the soft inlet and outlet air pipe 16 away from the pneumatic actuator 15, and the other end is connected to a positive pressure air source. The first control valve 19 is arranged on the air inlet pipe 18. One end of the air outlet pipe 20 is in communication with the end of the soft inlet and outlet air pipe 16 away from the pneumatic actuator 15, and the other end is connected to a negative pressure air source. The second control valve 21 is arranged on the air outlet pipe 20. That is, the soft inlet and outlet air pipe 16 in the embodiment can be in communication with the positive pressure air source through the air inlet pipe 18 and the first control valve 19, and can also be in communication with the negative pressure air source through the air outlet pipe 20 and the second control valve 21. When the two clamping jaws 171 need to approach each other to clamp the battery cell, the first control valve 19 controls the air inlet pipe 18 to be connected, and the second control valve 21 controls the air outlet pipe 20 to be disconnected. At this time, the positive pressure air source supplies air to the pneumatic actuator 15 through the air inlet pipe 18 and the soft inlet and outlet air pipe 16, to drive the two clamping jaws 171 to approach each other. In this process, the first inlet and outlet port 151 of the pneumatic actuator 15 exhausts air to the atmosphere. When the two clamping jaws 171 need to move away from each other to release the battery cell, the first control valve 19 controls the air inlet pipe 18 to be disconnected, and the second control valve 21 controls the air outlet pipe 20 to be connected. The negative pressure air source draws air from the pneumatic actuator 15 through the air outlet pipe 20 and the soft inlet and outlet air pipe 16. The driving force of the pneumatic actuator 15 cooperates with the elastic force of the elastic member 172 to enable the two clamping jaws 171 to quickly open. In this process, the first inlet and outlet port 151 of the pneumatic actuator 15 inhales air from the atmosphere. In other embodiments, the positive pressure air source can be used alone to cooperate with the air inlet pipe 18 and the first control valve 19 to drive the pneumatic actuator 15, or the negative pressure air source can be used alone to cooperate with the air outlet pipe 20 and the second control valve 21 to drive the pneumatic actuator 15. However, using the negative pressure air source alone or the positive pressure air source alone to drive the pneumatic actuator 15 will reduce the opening speed of the two clamping jaws 171. Specifically, in the embodiment, the tail roll mechanism of the laminating machine further comprises a three-way joint 26, and the air inlet pipe 18 and the air outlet pipe 20 are connected to the soft inlet and outlet air pipe 16 through the three-way joint 26.

[0077] In other embodiments, the soft inlet and outlet air pipe 16 can also be selectively communicated with the positive pressure air source or the negative pressure air source, that is, only the positive pressure air source or only the negative pressure air source is provided, and a return spring is provided in the pneumatic actuator 15 accordingly. When only the positive pressure air source is provided, the soft inlet and outlet air pipe 16 is selectively communicated with the positive pressure air source, when the two clamping jaws 171 need to be close to each other to clamp the battery cell, the soft inlet and outlet air pipe 16 is communicated with the positive pressure air source, the positive pressure air source supplies air to the pneumatic actuator 15 through the soft inlet and outlet air pipe 16, drives the two air claws to drive the two clamping jaws 171 to be close to each other, and in this process, the return spring is compressed, when the two clamping jaws 171 need to be away from each other to release the battery cell, the soft inlet and outlet air pipe 16 is disconnected from the positive pressure air source, and the elastic force of the return spring drives the two air claws to drive the two clamping jaws 171 to be opened. When only the negative pressure air source is provided, the soft inlet and outlet air pipe 16 is selectively communicated with the negative pressure air source, when the two clamping jaws 171 need to be close to each other to clamp the battery cell, the soft inlet and outlet air pipe 16 is communicated with the negative pressure air source, the negative pressure air source exhausts air from the pneumatic actuator 15 through the soft inlet and outlet air pipe 16, drives the two air claws to drive the two clamping jaws 171 to be close to each other, and in this process, the return spring is compressed, when the two clamping jaws 171 need to be away from each other to release the battery cell, the soft inlet and outlet air pipe 16 is disconnected from the negative pressure air source, and the elastic force of the return spring drives the two air claws to drive the two clamping jaws 171 to be quickly opened. Compared with the scheme that the soft inlet and outlet air pipe 16 is selectively communicated with the positive pressure air source and the negative pressure air source in the embodiment, the scheme that the positive pressure air source or the negative pressure air source cooperates with the return spring will cause the size and weight of the pneumatic actuator 15 to increase due to the presence of the return spring, and will cause the reaction sensitivity of the two clamping jaws 171 to decrease.

[0078] Further, as shown in Figure 5 The laminating machine tail roll mechanism further comprises a pressure reducing valve 25 provided on the air inlet pipe 18 to control the air pressure of the air inlet pipe 18 flowing to the soft inlet and outlet air pipe 16.

[0079] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A lamination tail wrap mechanism characterized by, The utility model relates to a battery cell clamping device, including: Support (11); Rotary drive (12) is arranged on the support (11); Transmission assembly (13) is arranged on the support (11) and is connected with the rotary drive (12); First mounting plate (14) is connected with the transmission assembly (13), and the rotary drive (12) can drive the first mounting plate (14) to rotate through the transmission assembly (13); Pneumatic actuator (15) is arranged on the first mounting plate (14), and the pneumatic actuator (15) is provided with first inlet and outlet (151) and second inlet and outlet (152), and the first inlet and outlet (151) are communicated with the atmosphere; Soft inlet and outlet air pipe (16) one end is communicated with the second inlet and outlet (152), and the other end is selectively communicated with positive pressure source and / or negative pressure source; Clamping assembly (17) includes two clamping jaws (171), and two clamping jaws (171) are connected with the pneumatic actuator (15), and the pneumatic actuator (15) is used to drive two clamping jaws (171) to open and close movement to clamp or release battery cell.

2. The spooling mechanism of claim 1, wherein, Also including: Air inlet pipe (18) one end is communicated with the soft inlet and outlet air pipe (16) away from the pneumatic actuator (15) one end, and the other end is connected with positive pressure source; First control valve (19) is arranged on the air inlet pipe (18); Air outlet pipe (20) one end is communicated with the soft inlet and outlet air pipe (16) away from the pneumatic actuator (15) one end, and the other end is connected with negative pressure source; Second control valve (21) is arranged on the air outlet pipe (20).

3. The spooling mechanism of claim 1, wherein, The pneumatic actuator (15) is parallel open-close type gas claw, and two clamping jaws (171) are arranged on two gas claws of the pneumatic actuator (15) respectively.

4. The spooling mechanism of claim 1, wherein, Also including guide assembly (22), the guide assembly (22) includes second mounting plate (221) and multiple cross roller guides (222), the second mounting plate (221) is fixedly arranged on the side wall of the pneumatic actuator (15), and the clamping jaw (171) is arranged on the side of the second mounting plate (221) away from the pneumatic actuator (15), and two clamping jaws (171) are slidably connected with the second mounting plate (221) through the cross roller guide (222) respectively.

5. The spooling mechanism of claim 4, wherein, The clamping jaw (171) includes: Mounting block (1711) is arranged on the pneumatic actuator (15), and the cross roller guide (222) connects the mounting block (1711) with the second mounting plate (221), and the pneumatic actuator (15) can drive the mounting block (1711) to move along the cross roller guide (222); Clamping jaw mounting plate (1712) is arranged on the mounting block (1711); Tab clamping plate (1713) is arranged on the clamping jaw mounting plate (1712); Clamping jaw finger mounting plate (1714) is arranged on the two ends of the clamping jaw mounting plate (1712).

6. The spooling mechanism of claim 5, wherein, The clamping jaw (171) further comprises a first connecting member, both ends of the clamping jaw mounting plate (1712) are provided with strip-shaped holes (17121) extending along the length direction of the clamping jaw mounting plate (1712), the clamping jaw finger mounting plate (1714) is provided with a first connecting hole, and the first connecting member connects the clamping jaw finger mounting plate (1714) and the clamping jaw mounting plate (1712) by penetrating through the first connecting hole and the strip-shaped holes (17121).

7. The spoolie tail mechanism of claim 5, wherein, The tab clamping plate (1713) is provided with a plurality of lightening holes (17131).

8. The spoolie tail mechanism of claim 5, wherein, The clamping assembly (17) further comprises elastic members (172), and the elastic members (172) are clamped between the mounting blocks (1711) of the two clamping jaws (171).

9. The spoolie tail mechanism of any of claims 1-4, wherein, The positioning assembly (23) comprises a first positioning block (231), a second positioning block (232) and a positioning rod (233), the first positioning block (231) is arranged on the support (11), the second positioning block (232) is arranged on the first mounting plate (14), the first positioning block (231) and the second positioning block (232) are both provided with positioning holes through which the positioning rod (233) penetrates, and the positioning rod (233) connects the first positioning block (231) and the second positioning block (232) by penetrating through the two positioning holes.

10. The tail wrap mechanism of any one of claims 1-4, wherein, The sensing assembly (24) comprises a sensing sheet (241) and a rotation-to-position inductor (242), and the sensing sheet (241) and the rotation-to-position inductor (242) are arranged on the first mounting plate (14) and the support (11) respectively.

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