Protective adhesive tape pasting device for cylindrical lithium battery pole piece

Abstract

The utility model discloses a protective adhesive tape pasting device for a cylindrical lithium battery pole piece, and relates to the technical field of battery manufacturing equipment. The device comprises a rubberizing vertical plate, and an unwinding mechanism, a rubber failure mechanism, a rubber pressing mechanism, a rubber cutting mechanism, a rubberizing mechanism and a rubber pulling mechanism which are sequentially mounted on the rubberizing vertical plate, wherein an opening for a pole piece to pass through is formed in the rubberizing vertical plate; the rubberizing mechanism comprises a translation air cylinder, an L-shaped sliding base, a suction assembly and a first rubberizing air cylinder, the translation air cylinder is installed on the back face of the rubberizing vertical plate in the Z-axis direction, one end of the L-shaped sliding base perpendicularly penetrates through the rubberizing vertical plate and is connected with an output rod of the translation air cylinder, and a Y-axis linear guide rail and a connecting base are installed on the L-shaped sliding base; the suction assembly is arranged at the front end of the Y-axis linear guide rail, the first rubberizing air cylinder is installed on the connecting base, connected with the suction assembly and used for driving the suction assembly to get close to the adhesive tape, and the suction assembly is used for sucking the adhesive tape. The adhesive tape sticking and preparing device can synchronously carry out adhesive tape sticking and preparing work, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing equipment technical field especially relates to a kind of protective adhesive tape pasting device of cylindrical lithium battery pole piece. BACKGROUND

[0002] In the production and manufacturing process of cylindrical lithium battery, the positive and negative pole piece pasting protective adhesive tape is an important process, which mainly operates to paste protective adhesive tape to the upper and lower surfaces of positive and negative pole piece, so as to prevent the burr on the pole piece and tab from piercing the separator, and the protective adhesive tape can also form a support structure inside the battery cell, enhancing the structural strength of the battery cell. However, in the existing pole piece pasting adhesive process, the taking out of the adhesive tape and the pasting of the taken out adhesive tape on the pole piece are two action processes, which cannot be performed simultaneously due to mutual constraints. Specifically, after a section of adhesive tape is taken out from the unwinding mechanism, the adhesive tape pasting process on the pole piece surface needs to be waited for, and then the adhesive tape can be continuously taken out from the unwinding mechanism. Therefore, the adhesive pasting action and the adhesive preparation action cannot be performed synchronously each time, resulting in long adhesive pasting time and low efficiency in the adhesive pasting process. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a protective adhesive tape pasting device for cylindrical lithium battery pole piece, which can simultaneously perform adhesive pasting and adhesive preparation work, and improve work efficiency.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A protective adhesive tape pasting device for cylindrical lithium battery pole piece includes an adhesive pasting vertical plate and an unwinding mechanism, an adhesive opening mechanism, an adhesive pressing mechanism, an adhesive cutting mechanism, an adhesive pasting mechanism and an adhesive pulling mechanism installed in sequence on the adhesive pasting vertical plate. An opening for the pole piece to pass through is provided on one side of the adhesive pasting vertical plate between the adhesive pasting mechanism and the adhesive pulling mechanism. The adhesive opening mechanism is used to open the roll-shaped adhesive tape on the unwinding mechanism. The adhesive pulling mechanism is used to pull the adhesive tape to the required length. The adhesive pressing mechanism is used to press the adhesive tape. The adhesive cutting mechanism is used to cut the adhesive tape. The adhesive pasting mechanism includes a translation cylinder, an L-shaped sliding base, an attraction assembly and a first adhesive pasting cylinder. The translation cylinder is installed on the back of the adhesive pasting vertical plate along the Z-axis direction. One end of the L-shaped sliding base penetrates the adhesive pasting vertical plate perpendicularly and is connected with the output rod of the translation cylinder. A Y-axis linear guide rail and a connecting seat are installed on the L-shaped sliding base. The slider of the Y-axis linear guide rail is fixed on the L-shaped sliding base. The attraction assembly is arranged at the front end of the guide rail base of the Y-axis linear guide rail. The first adhesive pasting cylinder is installed on the connecting seat, and the output rod of the first adhesive pasting cylinder is connected with the attraction assembly, which is used to drive the attraction assembly to approach the adhesive tape. The attraction assembly is used to attract the adhesive tape.

[0006] As a further elaboration of the above technical solutions:

[0007] The unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the pasting mechanism and the pulling mechanism are respectively provided with two groups, and one group of the unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the pasting mechanism and the pulling mechanism is located at the upper part of the pasting vertical plate and is used for pasting the protective tape on the upper surface of the polar plate, and the other group of the unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the pasting mechanism and the pulling mechanism is symmetrically arranged at the lower part of the pasting vertical plate and is used for pasting the protective tape on the lower surface of the polar plate.

[0008] The pasting mechanism further comprises a second pasting cylinder, the second pasting cylinder is installed at the rear end of the connecting seat, the output rod of the second pasting cylinder is provided with a pressing head, the rear end of the guide base of the Y-axis linear guide rail is provided with a limiting block, the pressing head faces the limiting block, and the limiting block is pressed by the pressing head to provide pressure for the guide base of the Y-axis linear guide rail and the suction assembly.

[0009] The suction assembly comprises a suction disc bottom block and a vacuum suction disc which are fixedly connected.

[0010] The opening mechanism comprises a fixed plate, a clamping block, a guide rod, a sliding block and an opening cylinder, the fixed plate and the clamping block are parallel to each other and are installed on the front surface of the pasting vertical plate, the guide rod is arranged along the Y-axis direction and is fixedly connected between the fixed plate and the clamping block, the sliding block is slidingly arranged on the guide rod, and an opening roller is vertically arranged on the sliding block, the opening cylinder is installed on the fixed plate, and the output rod of the opening cylinder is fixedly connected with the sliding block.

[0011] The pressing mechanism comprises a pressing cylinder, an upper pressing block and a lower pressing block, the pressing cylinder and the lower pressing block are installed on the front surface of the pasting vertical plate, and the upper pressing block is installed on the output end of the pressing cylinder and is arranged opposite to the lower pressing block.

[0012] The cutting mechanism comprises a cutting base, a cutting cylinder, a knife holder and a cutting knife, the cutting base is installed on the front surface of the pasting vertical plate, the cutting cylinder is installed on the cutting base, the knife holder is connected with the output rod of the cutting cylinder, and a sliding shaft is further arranged between the knife holder and the cutting base, the sliding shaft is arranged along the Y-axis direction, one end of the sliding shaft is fixedly connected with the knife holder, the other end of the sliding shaft is slidingly connected with the cutting base, and the cutting knife is installed on the knife holder along the Z-axis direction.

[0013] The pulling mechanism comprises a pulling servo motor, a pulling ball screw pair, an X-axis linear guide rail and a pulling pneumatic clamping jaw, the pulling servo motor is installed on the pasting vertical plate, the pulling ball screw pair is arranged on the back surface of the pasting vertical plate along the X-axis direction and is connected with the output shaft of the pulling servo motor, a moving block is installed on the screw nut of the pulling ball screw pair, a connecting plate passing through an opening is arranged on the moving block, the X-axis linear guide rail is installed on the front surface of the pasting vertical plate, the pulling pneumatic clamping jaw is installed on the sliding block of the X-axis linear guide rail and is connected with the connecting plate, and a pressing rod is rotatably connected with one of the clamping jaws of the pulling pneumatic clamping jaw.

[0014] The adhesive sticking position and the adhesive taking position are staggered, in use, the pole piece passes through the opening of the adhesive sticking vertical plate, the adhesive tape passes through the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive cutting mechanism in sequence after coming out of the unwinding mechanism, the adhesive tape is prepared by the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive pulling mechanism, the adhesive pulling mechanism pulls the adhesive tape to the adhesive taking position for standby, the vacuum suction cup of the adhesive sticking mechanism sucks the adhesive tape at the adhesive taking position, the adhesive cutting mechanism cuts the adhesive tape, the vacuum suction cup is retracted along the Y-axis direction, and then is translated along the Z-axis direction by the action of the translation cylinder, then the vacuum suction cup is stretched along the Y-axis direction and is attached to the pole piece, the adhesive sticking position and the adhesive taking position are staggered, the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive pulling mechanism can synchronously prepare the adhesive tape when the adhesive sticking mechanism sticks the adhesive, the adhesive preparation and the adhesive sticking do not interfere with each other, and the working efficiency of the pole piece adhesive sticking is improved.

[0015] The adhesive tape passing rollers are vertically arranged on the front surface of the adhesive sticking vertical plate and are used for supporting and guiding the adhesive tape.

[0016] Compared with the prior art, the adhesive sticking mechanism has at least the following beneficial effects:

[0017] The adhesive sticking position and the adhesive taking position are staggered, in use, the pole piece passes through the opening of the adhesive sticking vertical plate, the adhesive tape passes through the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive cutting mechanism in sequence after coming out of the unwinding mechanism, the adhesive tape is prepared by the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive pulling mechanism, the adhesive pulling mechanism pulls the adhesive tape to the adhesive taking position for standby, the vacuum suction cup of the adhesive sticking mechanism sucks the adhesive tape at the adhesive taking position, the adhesive cutting mechanism cuts the adhesive tape, the vacuum suction cup is retracted along the Y-axis direction, and then is translated along the Z-axis direction by the action of the translation cylinder, then the vacuum suction cup is stretched along the Y-axis direction and is attached to the pole piece, the adhesive sticking position and the adhesive taking position are staggered, the adhesive opening mechanism, the adhesive pressing mechanism and the adhesive pulling mechanism can synchronously prepare the adhesive tape when the adhesive sticking mechanism sticks the adhesive, the adhesive preparation and the adhesive sticking do not interfere with each other, and the working efficiency of the pole piece adhesive sticking is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings:

[0019] Figure 1 It is a structural schematic view of the adhesive sticking mechanism of the embodiment of the present application;

[0020] Figure 2 It is a structural schematic view of the adhesive sticking mechanism of the embodiment of the present application;

[0021] Figure 3 It is a structural schematic view of the adhesive sticking mechanism of the embodiment of the present application from another perspective;

[0022] Figure 4 It is a structural schematic view of the adhesive opening mechanism of the embodiment of the present application;

[0023] Figure 5 It is a structural schematic view of the adhesive pressing mechanism of the embodiment of the present application;

[0024] Figure 6A structure schematic view of a cutting mechanism of an embodiment of the present application;

[0025] Figure 7 A structure schematic view of a cutting mechanism of an embodiment of the present application;

[0026] Figure 8 A structure schematic view of a clamping jaw of a pulling mechanism of an embodiment of the present application;

[0027] Figure 9 A structure schematic view of a deviation rectifying mechanism of an embodiment of the present application.

[0028] The figure marks are: 1, a sticking plate; 2, a unwinding mechanism; 21, a tape mounting disc; 22, a one-way adhesive wheel; 3, a cutting mechanism; 31, a fixed plate; 32, a clamping block; 33, a guide rod; 34, a sliding block; 341, a cutting roller; 35, a cutting cylinder; 4, a pressing mechanism; 41, a pressing cylinder; 42, an upper pressing block; 43, a lower pressing block; 5, a cutting mechanism; 51, a cutting base; 52, a cutting cylinder; 53, a cutter holder; 54, a cutting knife; 6, a sticking mechanism; 61, a translation cylinder; 62, an L-shaped sliding base; 621, a Y-axis linear guide rail; 6211, a limiting block; 622, a connecting seat; 623, a Z-axis linear guide rail; 63, a suction assembly; 631, a suction base block; 632, a vacuum suction disc; 64, a first sticking cylinder; 65, a second sticking cylinder; 651, a pressing head; 7, a pulling mechanism; 71, a pulling servo motor; 72, a pulling ball screw pair; 721, a moving block; 722, a connecting plate; 73, an X-axis linear guide rail; 74, a pulling pneumatic clamping jaw; 741, a pressing rod; 8, a deviation rectifying mechanism; 81, a deviation rectifying motor; 82, a deviation rectifying ball screw pair; 83, a deviation rectifying block; 9, a tape passing roller; 10, a pole piece; 20, a tape; 30, a Z-axis support; 40, a first slot-shaped photoelectric sensor; 50, a first sensing sheet; 60, a second slot-shaped photoelectric sensor; 70, a second sensing sheet; 80, a third slot-shaped photoelectric sensor; 90, a third sensing sheet. DETAILED DESCRIPTION

[0029] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. But it should be known that the present application can be realized through various different forms, and should not be understood as being limited to the embodiments set forth herein. The embodiments are provided herein to make the disclosure of the present application more complete, and to fully convey the concept of the present application to the person skilled in the art.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, 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 limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; 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, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0031] As Figures 1-9As shown, the application provides a kind of protection adhesive tape pasting device of cylindrical lithium battery pole piece, including pasting adhesive vertical plate 1 and the unwinding mechanism 2, open adhesive mechanism 3, press adhesive mechanism 4, cut adhesive mechanism 5, pasting adhesive mechanism 6 and pull adhesive mechanism 7 installed on pasting adhesive vertical plate 1 in sequence, still include several adhesive tape pass roller 9.Pasting adhesive vertical plate 1 is equipped with the opening for pole piece 10 to pass through on the side of pasting adhesive mechanism 6 and pull adhesive mechanism 7;Open adhesive mechanism 3 is used to open adhesive tape on the unwinding mechanism 2;Pull adhesive mechanism 7 is used to pull adhesive tape 20 to the length needed;Press adhesive mechanism 4 is used to press adhesive tape 20;Cut adhesive mechanism 5 is used to cut adhesive tape 20;Pasting adhesive mechanism 6 is used to paste adhesive tape 20 on the surface of pole piece 10;Adhesive tape pass roller 9 is distributed in open adhesive mechanism 3 both sides and between open adhesive mechanism 3 and press adhesive mechanism 4, and adhesive tape pass roller 9 is vertically installed on the front of pasting adhesive vertical plate 1, it is used to support and guide adhesive tape 20.

[0032] Optionally, the unwinding mechanism 2, open adhesive mechanism 3, press adhesive mechanism 4, cut adhesive mechanism 5, pasting adhesive mechanism 6 and pull adhesive mechanism 7 are respectively equipped with two groups, and two groups of unwinding mechanism 2, open adhesive mechanism 3, press adhesive mechanism 4, cut adhesive mechanism 5, pasting adhesive mechanism 6 and pull adhesive mechanism 7 are respectively located on the upper portion and lower portion of pasting adhesive vertical plate 1, the unwinding mechanism 2, open adhesive mechanism 3, press adhesive mechanism 4, cut adhesive mechanism 5, pasting adhesive mechanism 6 and pull adhesive mechanism 7 on the front upper portion of pasting adhesive vertical plate 1 are mutually matched for pasting the protective adhesive tape 20 on the upper surface of pole piece 10, the unwinding mechanism 2, open adhesive mechanism 3, press adhesive mechanism 4, cut adhesive mechanism 5, pasting adhesive mechanism 6 and pull adhesive mechanism 7 on the front lower portion of pasting adhesive vertical plate 1 are mutually matched for pasting the protective adhesive tape 20 on the lower surface of pole piece 10.

[0033] As shown in the figure, Figure 1 The unwinding mechanism 2 includes adhesive tape mounting disc 21 and one-way adhesive pass wheel 22.

[0034] As shown in the figure, Figure 4As shown, the opening mechanism 3 includes a fixed plate 31, a clamping block 32, a guide rod 33, a sliding block 34 and an opening cylinder 35. The fixed plate 31 and the clamping block 32 are parallel to each other and are installed on the front face of the taping vertical plate 1. The guide rod 33 is arranged along the Y-axis direction and is fixedly connected between the fixed plate 31 and the clamping block 32. The sliding block 34 is slidingly arranged on the guide rod 33, specifically, the sliding block 34 is slidingly connected with the guide rod 33 through a linear bearing. An opening roller 341 is vertically arranged on the sliding block 34. The opening cylinder 35 is installed on the fixed plate 31. As a preferred embodiment, the opening cylinder 35 is a pen-type cylinder. An output rod of the opening cylinder 35 is fixedly connected with the sliding block 34, and is used to drive the sliding block 34 to slide along the guide rod 33. When the opening mechanism 3 works, the adhesive tape 20 is fed out from the unwinding mechanism 2, passes through the adhesive tape passing roller 9 and the opening roller 341. The opening cylinder 35 drives the sliding block 34 and the opening roller 341 to slide along the guide rod 33 until the sliding block 34 abuts against the clamping block 32. The opening roller 341 slides relative to the adhesive tape passing roller 9, thereby providing a pulling force to the adhesive tape 20 and opening the adhesive tape 20 in a roll shape.

[0035] Optionally, a first slot-shaped photoelectric sensor 40 is arranged on one side of the front face of the taping vertical plate 1. A first sensing sheet 50 is arranged on the side wall of the sliding block 34 and matches the first slot-shaped photoelectric sensor 40. The first sensing sheet 50 and the first slot-shaped photoelectric sensor 40 are matched with each other and are used to detect the opening state of the adhesive tape 20 and determine whether the adhesive tape 20 exists.

[0036] As shown in Figure 5 The pressing mechanism 4 includes a pressing cylinder 41, an upper pressing block 42 and a lower pressing block 43. As a preferred embodiment, the pressing cylinder 41 is a three-axis cylinder. The pressing cylinder 41 and the lower pressing block 43 are installed on the front face of the taping vertical plate 1. The upper pressing block 42 is arranged opposite to the lower pressing block 43 and is installed on the end plate of the pressing cylinder 41. When the pressing mechanism 4 works, the output end of the pressing cylinder 41 performs an extension action, which is used to drive the upper pressing block 42 to move towards the lower pressing block 43, and the lower pressing block 43 is used to press the adhesive tape 20.

[0037] As shown in Figures 7-8As shown, the rubber pulling mechanism 7 includes a rubber pulling servo motor 71, a bearing seat, a mounting seat, a rubber pulling ball screw pair 72, an X-axis linear guide rail 73 and a rubber pulling pneumatic clamp jaw 74. The rubber pulling servo motor 71 is installed on the rubber sticking vertical plate 1. The bearing seat and the mounting seat are installed on the back of the rubber sticking vertical plate 1. The rubber pulling ball screw pair 72 is arranged on the back of the rubber sticking vertical plate 1 along the X-axis direction, and one end thereof penetrates through the bearing seat and is connected with the output shaft of the rubber pulling servo motor 71, and the other end is rotatably connected on the mounting seat. A moving block 721 is installed on the screw nut of the rubber pulling ball screw pair 72. A connecting plate 722 is arranged on the moving block 721 and penetrates through an opening. The X-axis linear guide rail 73 is installed on the front of the rubber sticking vertical plate 1. The rubber pulling pneumatic clamp jaw 74 is installed on the sliding block of the X-axis linear guide rail 73, and the rubber pulling pneumatic clamp jaw 74 is connected with the connecting plate 722. When the rubber pulling mechanism 7 works, the servo motor drives the rubber pulling ball screw pair 72 to move. The screw nut can move linearly along the axial direction of the ball screw, so that the moving block 721 drives the rubber pulling pneumatic clamp jaw 74 to slide along the X-axis linear guide rail 73 and approach the rubber belt 20. The rubber pulling pneumatic clamp jaw 74 is used for clamping the head of the rubber belt 20. After the rubber belt 20 is loosened by the rubber pressing mechanism 4, the rubber pulling pneumatic clamp jaw 74 slides backward along the X-axis linear guide rail 73, and the rubber belt 20 is pulled to the required length.

[0038] It should be noted that the rubber pulling pneumatic clamp jaw 74 can also be selected as other devices capable of performing clamping action. Alternatively, one of the rubber pulling pneumatic clamp jaws 74 is rotatably connected with a rubber pressing rod 741. The rubber pressing rod 741 can avoid damaging the rubber belt 20 when clamping the rubber belt 20. A rubber pulling limiting support is arranged on the rear side of the rubber pulling ball screw pair 72. Two ends of the rubber pulling limiting support are provided with second slot-shaped photoelectric sensors 60. The bottom of the moving block 721 is provided with a second sensing sheet 70 matched with the second slot-shaped photoelectric sensors 60. The second sensing sheet 70 and the second slot-shaped photoelectric sensors 60 are matched with each other to detect the position of the rubber pulling pneumatic clamp jaw 74.

[0039] As shown in FIG. 6, Figures 2-3 The rubber sticking mechanism 6 includes a translation air cylinder 61, an L-shaped sliding base 62, an attracting assembly 63 and a first rubber sticking air cylinder 64. The translation air cylinder 61 is installed on the back of the rubber sticking vertical plate 1 along the Z-axis direction. One end of the L-shaped sliding base 62 penetrates through the rubber sticking vertical plate 1 and is connected with the output rod of the translation air cylinder 61. The L-shaped sliding base 62 is installed with a Y-axis linear guide rail 621 and a connecting seat 622. The sliding block of the Y-axis linear guide rail 621 is fixed on the L-shaped sliding base 62. The attracting assembly 63 is arranged at the front end of the guide rail base of the Y-axis linear guide rail 621. The first rubber sticking air cylinder 64 is installed on the connecting seat 622, and the output rod of the first rubber sticking air cylinder 64 is connected with the attracting assembly 63. The first rubber sticking air cylinder 64 is used for driving the attracting assembly 63 to translate along the Y-axis.

[0040] Optionally, Z-axis linear guide rails 623 are mounted on both sides of the L-shaped sliding base 62, Z-axis supports 30 are arranged on the L-shaped sliding base 62 on the adhesive vertical plate 1, and the sliders of the Z-axis linear guide rails 623 are fixedly connected with the Z-axis supports 30. When the adhesive mechanism 6 works, the first adhesive cylinder 64 drives the suction assembly 63 to translate along the Y-axis, and the suction assembly 63 is used to suck the adhesive tape 20 when the suction assembly 63 approaches the adhesive tape 20. Then, after the adhesive tape 20 is cut off by the cutting mechanism 5, the suction assembly 63 retreats, and the translation cylinder 61 drives the L-shaped sliding base 62 to translate along the Z-axis direction by an end distance, so that the adhesive tape 20 is adhered to the pole piece 10 by the upper and lower adhesive mechanisms 6, and the adhesive taking position and the adhesive adhering position are staggered.

[0041] Optionally, the adhesive mechanism 6 further comprises a second adhesive cylinder 65, the second adhesive cylinder 65 is mounted at the rear end of the connecting seat 622, the output rod of the second adhesive cylinder 65 is provided with a pressure head 651, the rear end of the guide rail base of the Y-axis linear guide rail 621 is provided with a limiting block 6211, the pressure head 651 faces the limiting block 6211, and the pressure head 651 is used to press the limiting block 6211, so as to provide pressure for the guide rail base of the Y-axis linear guide rail 621 and the suction assembly 63. When the adhesive tape 20 is adhered to the pole piece 10 by the upper and lower adhesive mechanisms 6, the second adhesive cylinder 65 plays a role of pressure maintaining, so as to ensure that the adhesive tape 20 is adhered to the upper and lower surfaces of the pole piece 10 flatly and firmly.

[0042] Optionally, the suction assembly 63 comprises a fixedly connected suction disc bottom block 631 and a vacuum suction disc 632, the suction disc bottom block 631 is mounted at the front end of the guide rail base of the Y-axis linear guide rail 621 and is connected with the output rod of the first adhesive cylinder 64, and the vacuum suction disc 632 is used to suck the adhesive tape 20.

[0043] As shown in FIG. 6, Figure 6 the cutting mechanism 5 comprises a cutting base 51, a cutting cylinder 52, a cutter holder 53 and a cutting knife 54, the cutting base 51 is mounted on the front surface of the adhesive vertical plate 1, the cutting cylinder 52 is mounted on the cutting base 51, one end of the cutter holder 53 is fixedly connected with the output rod of the cutting cylinder 52, the other end is provided with the cutting knife 54 arranged along the Z-axis direction, the cutter holder 53 is further provided with a sliding shaft, the sliding shaft is arranged along the Y-axis direction, one end of the sliding shaft is fixedly connected with the cutter holder 53, and the other end is slidingly arranged on the cutting base 51, specifically, the sliding shaft is slidingly connected with the cutting base 51 through a linear bearing. When the cutting mechanism 5 works, the cutting cylinder 52 drives the cutter holder 53 to translate along the Y-axis direction, so as to drive the cutting knife 54 to cut the adhesive tape 20 pressed by the pressing mechanism 4, and the cutter holder 53 is slidingly connected with the cutting base 51 through the sliding shaft, so as to improve the linear displacement precision of the cutting knife 54.

[0044] As shown in FIG. 6, Figure 9As shown, in one embodiment, the utility model also includes have pasting deviation correction mechanism 8, pasting deviation correction mechanism 8 includes deviation correction motor 81, deviation correction ball screw pair 82 and deviation correction block 83, deviation correction motor 81 is located below pasting vertical plate 1 and is fixedly arranged, deviation correction ball screw pair 82 is along X axle direction and is connected with the output shaft of deviation correction motor 81, deviation correction block 83 is installed on the screw nut of deviation correction ball screw pair 82, and deviation correction block 83 is fixedly connected with pasting vertical plate 1. Pasting deviation correction mechanism 8 is used for moving deviation correction block 83 on deviation correction ball screw pair 82 through deviation correction motor 81 according to the position of pole piece 10, thereby adjusting the position of alignment pasting vertical plate 1.

[0045] Optionally, a third slot photoelectric sensor 80 is arranged below pasting deviation correction mechanism 8, and a third sensing sheet 90 matched with the third slot photoelectric sensor 80 is arranged on deviation correction block 83, and the third sensing sheet 90 and the third slot photoelectric sensor 80 are matched with each other to detect the position of pasting vertical plate 1.

[0046] The working principle of the cylindrical lithium battery pole piece protection adhesive tape pasting device is as follows:

[0047] After the adhesive tape 20 comes out from the unwinding mechanism 2, passes through the adhesive opening mechanism 3 and the adhesive tape passing roller 9, and then passes through the adhesive pressing mechanism 4, the head of the adhesive tape 20 is pressed by the adhesive pressing mechanism 4, the adhesive pulling mechanism 7 is extended, and the adhesive pulling pneumatic gripper 74 clamps the adhesive head; the adhesive pressing mechanism 4 is loosened, the adhesive pulling mechanism 7 is retracted, the adhesive tape 20 is pulled to the required length, the vacuum suction cups 632 of the pasting mechanisms 6 are extended under the drive of the first pasting cylinders 64 and clamp the adhesive tape 20, the adhesive pressing mechanism 4 presses the adhesive tape 20 again, the adhesive cutting mechanism 5 acts, the cutter 54 cuts the adhesive tape 20, the vacuum suction cups 632 of the pasting mechanisms 6 are retracted, the pasting mechanisms 6 are translated along the Z-axis direction by a certain distance under the action of the translation cylinder 61, and then the vacuum suction cups 632 of the upper and lower pasting mechanisms 6 move towards each other along the Y-axis direction, so that the adhesive tape 20 is pasted on the pole piece 10, the vacuum suction cups 632 are retracted, and one pasting cycle is completed.

[0048] The utility model adopts the form that the pasting position and the adhesive taking position are staggered, the adhesive opening mechanism 3, the adhesive pressing mechanism 4 and the adhesive pulling mechanism 7 can be matched and synchronized to prepare the adhesive tape 20 when the pasting mechanism 6 is translated along the Z-axis direction under the action of the translation cylinder 61 to paste the adhesive tape, which is embodied as the adhesive pulling mechanism 7 pulls the adhesive tape 20 to the adhesive taking position for standby, so that the preparation of the adhesive tape 20 and the pasting are synchronized and do not interfere with each other, and the working efficiency of the pole piece 10 pasting is improved. The utility model can meet the pole piece protection adhesive pasting process of most small cylindrical lithium batteries on the market, has high structural precision, and improves the quality of the battery cell.

[0049] It should be understood that all the above embodiments are exemplary but not restrictive, any modification, equivalent change and modification made by the skilled in the art to the above described specific embodiments are still within the scope of the technical scheme of the present application.

Claims

1. A protective tape sticking device for cylindrical lithium battery pole pieces, comprising a sticking stand and, in sequence, a unwinding mechanism, a opening mechanism, a pressing mechanism, a cutting mechanism, a sticking mechanism and a pulling mechanism, characterized in that: the sticking stand is provided with an opening for the pole pieces to pass through on one side of the sticking mechanism and the pulling mechanism; the opening mechanism is used to open the roll-shaped tape on the unwinding mechanism; the pulling mechanism is used to pull the tape to the required length; the pressing mechanism is used to press the tape; the cutting mechanism is used to cut the tape; the sticking mechanism comprises a translation cylinder, an L-shaped sliding base, an attracting assembly and a first sticking cylinder, the translation cylinder is installed on the back of the sticking stand along the Z-axis direction, one end of the L-shaped sliding base penetrates the sticking stand vertically and is connected with the output rod of the translation cylinder, a Y-axis linear guide rail and a connecting seat are installed on the L-shaped sliding base, the slider of the Y-axis linear guide rail is fixed on the L-shaped sliding base, the attracting assembly is arranged at the front end of the guide rail base of the Y-axis linear guide rail, the first sticking cylinder is installed on the connecting seat, and the output rod of the first sticking cylinder is connected with the attracting assembly, which is used to drive the attracting assembly to approach the tape, and the attracting assembly is used to attract the tape; the unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the sticking mechanism and the pulling mechanism are respectively provided with two groups, one group of the unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the sticking mechanism and the pulling mechanism is located on the upper part of the sticking stand, and they are used to stick the protective tape on the upper surface of the pole pieces in cooperation with each other, and the other group of the unwinding mechanism, the opening mechanism, the pressing mechanism, the cutting mechanism, the sticking mechanism and the pulling mechanism is symmetrically arranged on the lower part of the sticking stand, and they are used to stick the protective tape on the lower surface of the pole pieces in cooperation with each other; the sticking mechanism further comprises a second sticking cylinder, the second sticking cylinder is installed at the rear end of the connecting seat, the output rod of the second sticking cylinder is provided with a pressure head, the rear end of the guide rail base of the Y-axis linear guide rail is provided with a limiting block, the pressure head faces the limiting block, and the pressure head is used to press the limiting block to provide pressure for the guide rail base of the Y-axis linear guide rail and the attracting assembly; the attracting assembly comprises a fixedly connected suction disc base and a vacuum suction disc; the opening mechanism comprises a fixed plate, a clamping block, a guide rod, a sliding block and an opening cylinder, the fixed plate and the clamping block are parallel to each other and are installed on the front of the sticking stand, the guide rod is arranged along the Y-axis direction and is fixedly connected between the fixed plate and the clamping block, the sliding block is slidingly arranged on the guide rod, and an opening roller is vertically arranged on the sliding block, the opening cylinder is installed on the fixed plate, and the output rod of the opening cylinder is fixedly connected with the sliding block; the pressing mechanism comprises a pressing cylinder, an upper pressing block and a lower pressing block, the pressing cylinder and the lower pressing block are installed on the front of the sticking stand, and the upper pressing block is installed on the output end of the pressing cylinder and is arranged opposite to the lower pressing block. ​ ​ ​ ​ ​ ​ 2. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: ​ 3. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: ​ 4. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: ​ 5. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: ​ 6. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: ​ 7. The protective tape sticking device for cylindrical lithium battery electrode sheets according to claim 1, characterized in that: The cutting mechanism comprises a cutting base, a cutting cylinder, a cutter holder and a cutting knife, the cutting base is installed on the front surface of the rubber application vertical plate, the cutting cylinder is installed on the cutting base, the cutter holder is connected with the output rod of the cutting cylinder, and a sliding shaft is further arranged between the cutter holder and the cutting base, the sliding shaft is arranged along the Y-axis direction, one end of the sliding shaft is fixedly connected with the cutter holder, and the other end of the sliding shaft is slidably connected with the cutting base, and the cutting knife is installed on the cutter holder along the Z-axis direction.

8. The protective tape sticking device for cylindrical lithium battery pole pieces according to claim 1, characterized in that: The rubber pulling mechanism comprises a rubber pulling servo motor, a rubber pulling ball screw pair, an X-axis linear guide rail and a rubber pulling pneumatic clamp jaw, the rubber pulling servo motor is installed on the rubber application vertical plate, the rubber pulling ball screw pair is arranged on the back surface of the rubber application vertical plate along the X-axis direction and is connected with the output shaft of the rubber pulling servo motor, a moving block is installed on the screw nut of the rubber pulling ball screw pair, a connecting plate penetrating through the opening is arranged on the moving block, the X-axis linear guide rail is installed on the front surface of the rubber application vertical plate, the rubber pulling pneumatic clamp jaw is installed on the sliding block of the X-axis linear guide rail and is connected with the connecting plate, and a rubber pressing rod is rotatably connected to one of the rubber pulling pneumatic clamp jaws.

9. The protective tape sticking device for cylindrical lithium battery pole pieces according to claim 1, characterized in that: The rubber application deviation correction mechanism comprises a deviation correction motor, a deviation correction ball screw pair and a deviation correction block, the deviation correction motor is arranged below the rubber application vertical plate and is fixedly arranged, the deviation correction ball screw pair is arranged along the X-axis direction and is connected with the output shaft of the deviation correction motor, and the deviation correction block is installed on the screw nut of the deviation correction ball screw pair and is fixedly connected with the rubber application vertical plate.

10. The protective tape sticking device for cylindrical lithium battery pole pieces according to claim 1, characterized in that: A plurality of adhesive tape passing rollers are arranged on both sides of the rubber opening mechanism and between the rubber opening mechanism and the rubber pressing mechanism, and the adhesive tape passing rollers are vertically installed on the front surface of the rubber application vertical plate and are used for supporting and guiding the adhesive tape.

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