Guide pin rubberizing mechanism of battery winding machine

Abstract

The utility model relates to the technical field of lithium battery winding, in particular to a guide pin rubberizing mechanism of a battery winding machine, which comprises a back plate, the back plate is provided with a belt passing hole for a battery pole piece belt to pass through, and rubberizing devices are respectively arranged on the upper side and the lower side of the belt passing hole; the adhesive tape pasting device comprises an adhesive tape roll feeding module, and the adhesive tape roll feeding module is provided with a rotatable adhesive tape supply wheel used for supporting wound adhesive tape. The tape outlet module, the tape pressing module, the tape pulling module, the tape cutting module and the tape sticking module are used for sequentially passing through the tape outlet module, the tape pressing module, the tape pulling module, the tape cutting module and the tape sticking module; the rubberizing module comprises a rubberizing base, a rubberizing rotating seat rotatably mounted on the rubberizing base, two adsorption seats mounted on the opposite sides of the rubberizing rotating seat in a lifting manner, and a rubberizing driving part for driving the adsorption seats to lift, and the rubberizing base is provided with a transposition driving part for driving the rubberizing rotating seat to rotate; and the two adsorption seats alternately face the drawstring module and the battery pole piece belt up and down. Compared with the prior art, long-time waiting for glue cutting and taking is not needed, the glue pasting speed is high, and the production efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery winding machines, in particular to a guide needle gluing mechanism of a battery winding machine. Background Art

[0002] Existing lithium-ion battery cells are primarily made by winding positive and negative electrodes separated by a separator. During production, guide pins are riveted onto the strips of positive and negative electrodes, and then a layer of tape is applied to cover the guide pin segments.

[0003] The existing gluing device is a double-sided gluing device of a button-type lithium-ion battery film winding machine disclosed in Chinese patent document No. 202320756314.9. The front side of the fixed plate is equipped with a tape placing mechanism, a glue seat, a tape cutting mechanism, a tape pressing mechanism, and a plate passing support plate from right to left in sequence, and a moving mechanism is installed on the rear side of the fixed plate. The tape placing mechanism is divided into an upper tape placing mechanism and a lower tape placing mechanism, and the glue seat is divided into an upper glue seat and a lower glue seat. When the electrode reaches the plate passing support plate, the upper tape placing mechanism unwinds the tape into the upper glue seat, and the lower tape placing mechanism unwinds the tape into the lower glue seat. The upper tape clamping mechanism and the lower tape clamping mechanism respectively clamp the upper tape and the lower tape and move them to the plate passing support plate. The upper tape pressing mechanism drives the upper tape to stick to the electrode, and the lower tape pressing mechanism drives the tape to stick to the electrode, completing the upper and lower tapes at one station at the same time, saving gluing time and improving production efficiency.

[0004] Another example is a gluing mechanism for a lithium battery winding machine disclosed in Chinese patent document No. 202321833758.4, which includes a glue feeding assembly, a glue pressing assembly, a glue cutting assembly, a glue preparation assembly, a glue taking and flipping assembly, and a glue applying assembly. The glue feeding assembly includes a tape roll and an over-rolling assembly for controlling the unwinding of the tape. The glue pressing assembly is used to compact the tape pulled by the over-rolling assembly. The glue cutting assembly is used to cut the compressed tape. The glue preparation assembly is used to clamp the tape and pull it forward to a certain length. The glue taking and flipping assembly is used to absorb the cut tape and flip it 180°. A fine-tuning mechanism for fine-tuning the glue taking height is provided below the glue taking and flipping assembly. The glue applying assembly includes a glue applying roller, a driving mechanism for driving the glue applying roller to rotate, and a swinging assembly for adjusting the position of the glue applying roller. The glue applying roller is provided with a glue applying area with multiple vacuum suction holes. This facilitates adjustment of the cutting length of the tape to accommodate gluing of different product models.

[0005] Another example is a gluing device for a battery machine and a battery machine having the same, disclosed in Chinese patent application number 201220234176.X. A gluing device for a battery machine is provided, comprising a machine base, the machine base being provided with a gluing conveying mechanism for conveying adhesive tape, a first gluing mechanism for pressing the adhesive tape for cutting, a second gluing mechanism for pressing the adhesive tape for cutting, an adsorption mechanism for adsorbing the adhesive tape, and a cutting mechanism for cutting the adhesive tape. A battery machine having the gluing device is also provided. The beneficial effect is that after the guide pins are riveted to the aluminum foil, a layer of adhesive can be applied to prevent the aluminum foil from being scratched by burrs left by the guide pins during riveting, thereby improving battery quality, reducing defective products, and lowering production costs.

[0006] The existing glue pressing / taping is a one-sided structure. After completing one glue application, it is necessary to wait for the next section of glue to be cut and removed, which is slow and affects production efficiency. Summary of the Invention

[0007] In view of the above technical problems in the prior art, the utility model provides a guide needle gluing mechanism for a battery winding machine.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] Provided is a guide needle gluing mechanism for a battery winding machine, comprising a back plate, the back plate being provided with a belt hole for a battery electrode belt to pass through, and gluing devices being provided on the upper and lower sides of the belt hole;

[0010] The adhesive laminating device includes a tape feeding module, which is provided with a rotatable adhesive supply wheel for supporting the wound adhesive tape; further comprising a tape discharging module for pulling the adhesive tape on the adhesive supply wheel to a preset length, a tape pressing module for timely pressing the adhesive tape, a tape pulling module for pulling the adhesive tape forward to a preset length, a tape cutting module for cutting the adhesive tape pulled out of the tape pulling module, and a adhesive laminating module for laminating the cut adhesive tape to the battery electrode strip;

[0011] The glue-applying module includes a glue-applying base, a glue-applying rotating seat rotatably mounted on the glue-applying base, two adsorption seats that are liftably mounted on opposite sides of the glue-applying rotating seat, and a glue-applying driving member for driving the adsorption seats to rise and fall. The glue-applying base is provided with a position-changing driving member for driving the glue-applying rotating seat to rotate, so that the two adsorption seats alternately face the pull-belt module and the battery electrode strip up and down.

[0012] As a further optional solution, the tape-out module includes a first guide roller and a second guide roller rotatably mounted on the back plate, and also includes a liftable tape-out roller and a tape-out drive for driving the tape-out roller to move up and down. The tape-out roller moves in the space between the first guide roller and the second guide roller.

[0013] As a further optional solution, the belt pressing module includes a lower belt pressing seat and an upper belt pressing seat, and a belt pressing driving member for driving the lower belt pressing seat and the upper belt pressing seat to move closer to or away from each other to clamp / relax the adhesive tape passing therethrough.

[0014] As a further optional solution, guide rollers are provided on the tape feeding sides of the lower tape pressing seat and the upper tape pressing seat.

[0015] As a further optional solution, a plurality of long strip-shaped paving grooves are provided at the bottom of the upper pressure belt seat.

[0016] As a further optional solution, the tape cutting module includes a tape cutting blade and a tape cutting drive member for driving the tape cutting blade to rise and fall, and the tape cutting blade is located on the tape outlet side of the lower tape pressing seat and the upper tape pressing seat.

[0017] As a further optional solution, the drawstring module includes a drawstring slide that can be laterally mounted on the back plate, a drawstring finger cylinder fixed to the drawstring slide, and a drawstring clamp installed on the output end of the drawstring finger cylinder, and the clamping surface of the drawstring clamp is provided with multiple long avoidance grooves.

[0018] As a further optional solution, a rubber guide roller is provided on the rubber tape feeding side of the pull tape splint.

[0019] As a further optional solution, the adsorption seat is provided with a plurality of suction holes, and the suction holes are connected to the peripheral air extraction mechanism.

[0020] As a further optional solution, it also includes an adaptive driving component for driving the backplate to move horizontally. A grating displacement sensor for detecting the offset of the battery pole piece is provided at the belt hole. The adaptive driving component drives the backplate according to the signal fed back by the grating displacement sensor.

[0021] Beneficial effects of the utility model:

[0022] The utility model relates to a guide pin gluing mechanism for a battery winding machine. When the tape wound on the supply wheel is used, it is pulled through the tape discharging module and the tape pressing module in sequence. When the tape needs to be pulled out from the supply wheel, the tape pressing module presses the tape, and the operation of the tape discharging module drives the supply wheel to rotate, thereby releasing the tape from the supply wheel. The tape pulling module then pulls the end of the tape, pulls out a preset length of tape and places it on the adsorption seat of the gluing module. The tape cutting module cuts the tape to obtain a section of tape. The transposition drive then drives the adsorption seat with the tape sucked in to flip toward the battery electrode strip, and the gluing drive drives the adsorption seat close to the battery electrode strip until the tape on it is attached to the battery electrode strip.

[0023] Compared with the existing technology, the two adsorption seats of the glue-sticking module, one for receiving the tape and the other for sticking glue, do not need to wait for a long time to cut the glue and take it out, the glue-sticking speed is fast, and the production efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of a guide needle gluing mechanism of a battery winding machine in an embodiment.

[0025] Figure 2 Schematic diagram of the structure of the tape pressing module and the tape cutting module in the embodiment.

[0026] Figure 3 Schematic diagram of the structure of the drawstring module in the embodiment.

[0027] Figure 4 Schematic diagram of the structure of the glue-applying module in the embodiment.

[0028] Figure 5 for Figure 1 Magnified view at point A in the middle.

[0029] Figure 6 for Figure 1 Magnified view at point B.

[0030] Reference numerals:

[0031] Back plate 1, belt hole 11, adaptive driving component 12, grating displacement sensor 13;

[0032] Battery pole piece belt 2;

[0033] Glue sticking device 3;

[0034] Film feeding module 4, rubber feeding wheel 41;

[0035] The tape output module 5, the first guide roller 51, the second guide roller 52, the tape output drive 53, and the tape output roller 54;

[0036] Belt pressing module 6, lower belt pressing seat 61, upper belt pressing seat 62, clearance groove 621, belt pressing drive member 63, guide roller 64;

[0037] The drawstring module 7, the drawstring slide 71, the drawstring finger cylinder 72, the drawstring clamp 73, the avoidance groove 731, and the rubber guide roller 74;

[0038] The tape cutting module 8, the tape cutting blade 81, and the tape cutting drive 82;

[0039] Glue laminating module 9, glue laminating base 91, glue laminating rotating seat 92, adsorption seat 93, suction hole 931, glue laminating driving part 94, and transposition driving part 95. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] A guide needle gluing mechanism of a battery winding machine in this embodiment, such as Figures 1 to 6 As shown, it includes a back plate 1, which is provided with a belt hole 11 for the battery pole piece belt 2 (with a guide pin riveted) to pass through, and also includes an adaptive drive component 12 (servo linear drive module) for driving the back plate 1 to move horizontally. A grating displacement sensor 13 for detecting the offset of the battery pole piece belt 2 is provided at the belt hole 11. The adaptive drive component 12 drives the back plate 1 horizontally according to the signal fed back by the grating displacement sensor 13 to ensure that the battery pole piece belt 2 is in the belt hole 11 without interfering with the hole wall.

[0042] In this embodiment, gluing devices 3 are provided on the upper and lower sides of the tape hole 11. The upper gluing device 3 is used to apply glue to the top surface of the battery electrode tape 2, and the lower gluing device 3 is used to apply glue to the bottom surface of the battery electrode tape 2. The upper and lower gluing devices 3 have the same structure. The gluing devices 3 on each side include a tape feeding module 4, which is provided with a rotatable tape supply wheel 41 for supporting the wound tape; and further include the tape coming out of the tape supply wheel 41, which passes through: a tape output module 5 for pulling the tape on the tape supply wheel 41 to a preset length; a tape pressing module 6 for pressing the tape in time; a tape pulling module 7 for pulling the tape forward to a preset length; a tape cutting module 8 for cutting the tape pulled out of the tape pulling module 7; and a gluing module 9 for applying the cut tape to the battery electrode tape 2.

[0043] Specifically, the glue module 9 includes a glue base 91, a glue rotating seat 92 rotatably mounted on the glue base 91, two adsorption seats 93 rotatably mounted on the opposite side of the glue rotating seat 92, and a glue driving member 94 for driving the adsorption seat 93 to rise and fall. The glue base 91 is provided with a transposition driving member 95 for driving the glue rotating seat 92 to rotate 180°, so that the two adsorption seats 93 are alternately oriented up and down toward the draw tape module 7 and the battery electrode strip 2. The glue driving member 94 is a cylinder mounted on the glue rotating seat 92. When in use, one of the adsorption seats 93 faces the draw tape module 7 to absorb a section of tape, while the other adsorption seat 93 faces the battery electrode strip 2 for glue application. The adsorption seat 93 is provided with a plurality of suction holes 931, and the suction holes 931 are connected to the peripheral exhaust mechanism.

[0044] In this embodiment, the tape delivery module 5 comprises a first guide roller 51 and a second guide roller 52, rotatably mounted to the backplate 1 and arranged in parallel at the same height. It also includes a liftable tape delivery roller 54 and a tape delivery drive 53 for driving the tape delivery roller 54 up and down. The tape delivery roller 54 moves in the space between the first guide roller 51 and the second guide roller 52. After the adhesive tape exits the rubber supply roller 41, it first passes around the first guide roller 51, then downward around the tape delivery roller 54, and then upward around the second guide roller 52. The downward movement of the tape delivery roller 54 drives the rubber supply roller 41 to rotate and release a predetermined length of tape. The tape delivery drive 53 is a pneumatic cylinder.

[0045] In the present embodiment, the tape pressing module 6 includes a lower tape pressing seat 61 and an upper tape pressing seat 62, as well as a tape pressing driving member 63 for driving the lower tape pressing seat 61 and the upper tape pressing seat 62 to move closer to or away from each other to clamp / release the adhesive tape passing therethrough. A guide roller 64 is provided on the adhesive tape feeding side of the lower tape pressing seat 61 and the upper tape pressing seat 62. After the adhesive tape is compressed, the tape discharging module 5 moves again to pull out the adhesive tape. Specifically, the bottom of the upper tape pressing seat 62 is provided with a plurality of elongated grooves 621 to reduce the contact area with the adhesive surface of the adhesive tape. The tape pressing driving member 63 is a cylinder.

[0046] In this embodiment, the tape cutting module 8 includes a tape cutting blade 81 and a tape cutting driving member 82 for driving the tape cutting blade 81 to move up and down. The tape cutting blade 81 is located on the tape outlet side of the lower tape pressing seat 61 and the upper tape pressing seat 62.

[0047] In this embodiment, the drawstring module 7 includes a drawstring slide 71 that is laterally mounted on the back panel 1, a drawstring finger cylinder 72 fixed to the drawstring slide 71, and a drawstring clamp 73 mounted at the output end of the drawstring finger cylinder 72. When in use, the drawstring clamp 73 clamps the end of the tape to pull out the tape. The clamping surface of the drawstring clamp 73 is provided with multiple long avoidance grooves 731 to reduce the contact area with the adhesive surface of the tape.

[0048] Specifically, a rubber guide roller 74 is provided on the rubber tape feeding side of the pull tape clamping plate 73 .

[0049] In the description of the present invention, it is obvious that the embodiments described are only some embodiments of the present invention, rather than all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention as claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0051] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0052] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to connections directly or indirectly through an intermediary, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A guide needle gluing mechanism for a battery winding machine, characterized by: The back plate (1) is provided with a belt hole (11) for a battery electrode belt (2) to pass through, and glue sticking devices (3) are respectively provided on the upper and lower sides of the belt hole (11); The adhesive laminating device (3) comprises a tape feeding module (4) provided with a rotatable adhesive supply wheel (41) for supporting the wound adhesive tape; further comprising a tape discharging module (5) for pulling the adhesive tape on the adhesive supply wheel (41) out to a preset length, a tape pressing module (6) for pressing the adhesive tape in time, a tape pulling module (7) for pulling the adhesive tape forward to a preset length, a tape cutting module (8) for cutting the adhesive tape pulled out of the tape pulling module (7), and an adhesive laminating module (9) for laminating the cut adhesive tape to the battery electrode strip (2); The glue sticking module (9) comprises a glue sticking base (91), a glue sticking rotating seat (92) rotatably mounted on the glue sticking base (91), two adsorption seats (93) movably mounted on the opposite sides of the glue sticking rotating seat (92), and a glue sticking driving member (94) for driving the adsorption seats (93) to move up and down. The glue sticking base (91) is provided with a transposition driving member (95) for driving the glue sticking rotating seat (92) to rotate, so that the two adsorption seats (93) face the draw belt module (7) and the battery electrode belt (2) alternately up and down.

2. The guide needle gluing mechanism of a battery winding machine according to claim 1, characterized in that: The tape output module (5) comprises a first guide roller (51) and a second guide roller (52) rotatably mounted on the back plate (1), and also comprises a tape output roller (54) that can be raised and lowered and a tape output driving member (53) for driving the tape output roller (54) to move up and down. The tape output roller (54) moves in the space between the first guide roller (51) and the second guide roller (52).

3. The guide needle gluing mechanism of a battery winding machine according to claim 1, characterized in that: The belt pressing module (6) comprises a lower belt pressing seat (61) and an upper belt pressing seat (62), and a belt pressing driving member (63) for driving the lower belt pressing seat (61) and the upper belt pressing seat (62) to move closer to or away from each other, so as to clamp / release the adhesive tape passing therethrough.

4. The guide needle gluing mechanism of a battery winding machine according to claim 3, characterized in that: A guide roller (64) is provided on the adhesive tape feeding side of the lower pressure belt seat (61) and the upper pressure belt seat (62).

5. The guide needle gluing mechanism of a battery winding machine according to claim 3, characterized in that: The bottom of the upper pressure belt seat (62) is provided with a plurality of long strip-shaped giving way grooves (621).

6. The guide needle gluing mechanism of a battery winding machine according to claim 3, characterized in that: The tape cutting module (8) comprises a tape cutting blade (81) and a tape cutting driving member (82) for driving the tape cutting blade (81) to rise and fall. The tape cutting blade (81) is located at the tape outlet side of the lower tape pressing seat (61) and the upper tape pressing seat (62).

7. The guide needle gluing mechanism of a battery winding machine according to claim 1, characterized in that: The drawstring module (7) comprises a drawstring slide (71) which is laterally mounted on the back plate (1), a drawstring finger cylinder (72) fixed to the drawstring slide (71), and a drawstring clamp (73) mounted on the output end of the drawstring finger cylinder (72), wherein the clamping surface of the drawstring clamp (73) is provided with a plurality of long strip-shaped avoidance grooves (731).

8. The guide needle gluing mechanism of a battery winding machine according to claim 7, characterized in that: A rubber guide roller (74) is provided on the rubber tape feeding side of the pull tape clamping plate (73).

9. The guide needle gluing mechanism of a battery winding machine according to claim 1, characterized in that: The adsorption seat (93) is provided with a plurality of suction holes (931), and the suction holes (931) are connected to the peripheral air extraction mechanism.

10. The guide needle gluing mechanism of a battery winding machine according to claim 1, characterized in that: The invention also includes an adaptive driving member (12) for driving the back plate (1) to move laterally. A grating displacement sensor (13) for detecting the offset of the battery pole piece belt (2) is provided at the belt hole (11). The adaptive driving member (12) drives the back plate (1) according to a signal fed back by the grating displacement sensor (13).

Images