Gluing module and laser die-cutting machine

Abstract

The utility model discloses a rubberizing module and a laser die-cutting machine, a pole piece comprises a current collector and a tab, the edge area, close to the tab, of the current collector is set as a pasting area, the width direction of the pole piece is set as a first direction, and the rubberizing module comprises a heating unit, a pressing unit and an adjusting unit. The heating unit is used for heating the hot-melt adhesive tape located in the pasting area; the pressing unit comprises a first driving assembly, a first pressing roller and a second pressing roller, and the first driving assembly is used for driving the first pressing roller and the second pressing roller to be close to each other so that the first pressing roller and the second pressing roller can roll the pole piece and the hot melting adhesive tape heated by the heating unit together; the first driving assembly is further used for driving the first pressing roller and the second pressing roller to be away from each other. The adjusting unit is used for adjusting the position of the heating unit in the first direction and further used for adjusting the position of the pressing unit in the first direction. The rubberizing module disclosed by the utility model is higher in compatibility, and can be used for carrying out hot melt adhesive tape pasting operation on pole pieces with different widths.

Description

Technical Field

[0001] The present application relates to the technical field of battery pole piece manufacturing, and particularly relates to an adhesive pasting module and a laser die-cutting machine. Background Art

[0002] The pole piece of a battery generally includes a current collector, a tab, and an active material. The active material is generally coated on the surface of the current collector through a coating process. To form a tab on the initial pole piece (a large-size metal foil coated with an active material), a laser die-cutting process is generally used. However, the laser die-cutting process is likely to generate burrs at the edge of the current collector, so there is a risk that the burrs pierce the separator and contact the pole piece with the opposite polarity, resulting in a short circuit.

[0003] To reduce the short-circuit risk, after the tab is die-cut, a hot melt adhesive tape is attached to the edge area of the current collector close to the tab. The hot melt adhesive tape covers the burrs, thereby reducing the risk of the burrs piercing the separator.

[0004] In the related art, the hot melt adhesive tape is pasted on the pole piece by heating and rolling. However, the widths of the pole pieces are different, and the pasting positions of the hot melt adhesive tapes are also different. The current structure design of the adhesive pasting module is unreasonable and it is difficult to be compatible with pole pieces of different widths. Summary of the Utility Model

[0005] Therefore, the present application provides an adhesive pasting module with stronger compatibility, which can perform the operation of pasting the hot melt adhesive tape on pole pieces of different widths.

[0006] The present application also provides a laser die-cutting machine with the above-mentioned adhesive pasting module.

[0007] For the adhesive pasting module according to the first aspect embodiment of the present application, assuming that the pole piece includes a current collector and a tab, and the edge area of the current collector close to the tab is a pasting area, and the width direction of the pole piece is the first direction, the adhesive pasting module includes:

[0008] A heating unit for heating the hot melt adhesive tape located in the pasting area;

[0009] A pressing unit including a first driving component, a first pressing roller, and a second pressing roller. The first driving component is used to drive the first pressing roller and the second pressing roller to approach each other, so that the first pressing roller and the second pressing roller roll the pole piece and the hot melt adhesive tape heated by the heating unit together; the first driving component is also used to drive the first pressing roller and the second pressing roller to move away from each other;

[0010] An adjusting unit for adjusting the position of the heating unit in the first direction, and the adjusting unit is also used to adjust the position of the pressing unit in the first direction.

[0011] The adhesive module according to the embodiments of the present application has at least the following beneficial effects: By adjusting the position of the heating unit in the first direction and adjusting the position of the pressing unit in the first direction, the heating position and the rolling position can be adjusted. Thus, the adhesive module can perform the operation of pasting the hot melt tape on the pole pieces with different widths, and has stronger compatibility.

[0012] According to some embodiments of the present application, both of the two pasting areas located at the same end of the pole piece are first pasting areas. There are two heating units. One heating unit is used to heat the hot melt tape located in one of the first pasting areas, and the other heating unit is used to heat the hot melt tape located in the other first pasting area.

[0013] According to some embodiments of the present application, it further includes an opening and closing assembly. Let the thickness direction of the pole piece be the second direction. The opening and closing assembly is used to adjust the distance between the two heating units in the second direction.

[0014] According to some embodiments of the present application, the two pasting areas located on the same side of the pole piece are respectively a first pasting area and a second pasting area; there are two heating units. One heating unit is used to heat the hot melt tape located in the first pasting area, and the other heating unit is used to heat the hot melt tape located in the second pasting area; there are two pressing units. One pressing unit is used to roll the pole piece and the hot melt tape located in the first pasting area, and the other pressing unit is used to roll the pole piece and the hot melt tape located in the second pasting area.

[0015] According to some embodiments of the present application, both of the two pasting areas located at one end of the pole piece are first pasting areas, and both of the two pasting areas located at the other end of the pole piece are second pasting areas; there are four heating units. The first heating unit is used to heat the hot melt tape located in one of the first pasting areas, the second heating unit is used to heat the hot melt tape located in the other first pasting area, the third heating unit is used to heat the hot melt tape located in one of the second pasting areas, and the fourth heating unit is used to heat the hot melt tape located in the other second pasting area; there are two pressing units. One pressing unit is used to roll the pole piece and the hot melt tapes located in the two first pasting areas, and the other pressing unit is used to roll the pole piece and the hot melt tapes located in the two second pasting areas.

[0016] According to some embodiments of the present application, it further includes an opening and closing assembly. Let the thickness direction of the pole piece be the second direction. The opening and closing assembly is used to adjust the distance between the first heating unit and the second heating unit along the second direction, and the opening and closing assembly is also used to adjust the distance between the third heating unit and the fourth heating unit along the second direction.

[0017] According to some embodiments of the present application, it further includes a preheating unit. The preheating unit includes:

[0018] A first heating roller;

[0019] A roller;

[0020] A second driving assembly, which is used to drive the first heating roller and the roller to approach each other, so that the first heating roller and the roller roll the pole piece and the hot melt adhesive tape located in the pasting area together; the second driving assembly is also used to drive the first heating roller and the roller to move away from each other;

[0021] Wherein, the heating unit is used to heat the hot melt adhesive tape after being rolled by the first heating roller and the roller.

[0022] According to some embodiments of the present application, the roller includes a second heating roller.

[0023] According to some embodiments of the present application, the heating unit includes one of an electromagnetic heater, a microwave heater, an infrared heater, a hot air heater, and a heating roller.

[0024] A laser die-cutting machine according to the second aspect embodiment of the present application includes:

[0025] The above-mentioned adhesive pasting module;

[0026] A laser device, which is used to emit laser to cut an initial pole piece into several said pole pieces.

[0027] The laser die-cutting machine according to the embodiment of the present application has at least the following beneficial effects: By using the above-mentioned adhesive pasting module, the laser die-cutting machine can produce pole pieces with different widths, and the compatibility of the laser die-cutting machine is stronger.

[0028] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0029] The following further describes the present application in conjunction with the drawings and embodiments, where:

[0030] Figure 1 is a perspective view of the adhesive pasting module according to the embodiment of the present application;

[0031] Figure 2 It is a left view of the pole piece;

[0032] Figure 3 It is a sectional view of the pole piece;

[0033] Figure 4 It is Figure 1 the front view of the middle pasting module in

[0034] Figure 5 It is Figure 1 the right view of the left half part of the middle pasting module;

[0035] Figure 6 It is Figure 1 the three - dimensional view of the second driving component, the first heating roller and the temperature sensor of the middle pasting module;

[0036] Figure 7 It is Figure 1 the three - dimensional view of the heating unit of the middle pasting module;

[0037] Figure 8 It is a schematic diagram of the laser die - cutting machine according to the embodiment of the present application.

[0038] Reference numerals: pole piece 110, current collector 111, tab 112, pasting area 113, first pasting area 114, second pasting area 115, side 116, active material layer 117, hot - melt tape 120;

[0039] Heating unit 200, housing 210, inner cavity 211, air outlet 212, light outlet 213, fan 220, infrared light - emitting tube 230;

[0040] Pressing unit 300, first driving component 310, first mounting seat 311, first cylinder 312, first pressing roller 320, second pressing roller 330;

[0041] Adjusting unit 400, first sliding component 410, lead screw - nut assembly 420, second mounting seat 430, third mounting seat 440;

[0042] Opening - closing component 500, second cylinder 510, second sliding component 520, second slider 521, second slide rail 522;

[0043] Pre - heating unit 600, second driving component 610, first heating roller 620, roller 630, second heating roller 631, temperature sensor 640;

[0044] Laser device 700. Detailed implementation manners

[0045] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0046] In the description of the present application, it should be understood that with respect to the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0047] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "exceeding", etc. are understood not to include the recited number, and "above", "below", "within", etc. are understood to include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0048] In the description of the present application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0049] In the description of the present application, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Referring to Figure 1 and Figure 2 According to the adhesive module of the first aspect embodiment of the present application, it is assumed that the electrode tab 110 includes a current collector 111 and an electrode ear 112. It is assumed that the edge area of the current collector 111 close to the electrode ear 112 is the pasting area 113. It is assumed that the width direction of the electrode tab 110 is the first direction (referring to Figure 1 , for example, the first direction is the front-rear direction), and the adhesive module includes a heating unit 200, a pressing unit 300, and an adjusting unit 400. The heating unit 200 is used to heat the hot melt adhesive tape 120 located in the pasting area 113.

[0051] The lamination unit 300 includes a first driving assembly 310, a first pressing roller 320, and a second pressing roller 330. The first driving assembly 310 is used to drive the first pressing roller 320 and the second pressing roller 330 to approach each other, so that the first pressing roller 320 and the second pressing roller 330 roll the pole piece 110 and the hot-melt adhesive tape 120 heated by the heating unit 200 together. The first driving assembly 310 is also used to drive the first pressing roller 320 and the second pressing roller 330 to move away from each other. The adjusting unit 400 is used to adjust the position of the heating unit 200 in the first direction, and the adjusting unit 400 is also used to adjust the position of the lamination unit 300 in the first direction.

[0052] According to the adhesive tape module of the embodiment of the present application, it has at least the following beneficial effects: By adjusting the position of the heating unit 200 in the first direction and adjusting the position of the lamination unit 300 in the first direction, the heating position and the rolling position can be adjusted. Thus, the adhesive tape module can perform the pasting operation of the hot-melt adhesive tape 120 on pole pieces 110 with different widths, and has stronger compatibility.

[0053] It should be noted that the hot-melt adhesive tape 120 is located in the pasting area 113, which means that in the thickness direction (i.e., the second direction) of the pole piece 110, the projection of the hot-melt adhesive tape 120 coincides with the pasting area 113. The hot-melt adhesive tape 120 can be attached to the pasting area 113, or there is a small gap between the hot-melt adhesive tape 120 and the pasting area 113 (the pasting area 113 is a part of the side surface 116 of the pole piece 110).

[0054] Specifically, when the first driving assembly 310 drives the first pressing roller 320 and the second pressing roller 330 to approach each other, it can be that the first driving assembly 310 drives the first pressing roller 320 to move, so that the first pressing roller 320 approaches the second pressing roller 330; it can also be that the first driving assembly 310 drives the second pressing roller 330 to move, so that the second pressing roller 330 approaches the first pressing roller 320; or it can be that the first driving assembly 310 drives the first pressing roller 320 and the second pressing roller 330 to move together, so that the first pressing roller 320 and the second pressing roller 330 approach each other.

[0055] In some embodiments, referring to Figure 1 , the first driving assembly 310 includes two first cylinders 312 and two first mounting seats 311. The two first cylinders 312 drive the two first mounting seats 311 to move in opposite directions. The first pressing roller 320 is rotatably connected to one first mounting seat 311 (which can be realized through a bearing), and the second pressing roller 330 is rotatably connected to the other first mounting seat 311 (which can be realized through a bearing). Thus, when the two first cylinders 312 are ventilated and working, the first pressing roller 320 and the second pressing roller 330 can be driven to approach each other or move away from each other.

[0056] In another embodiment, the first cylinder 312 can be replaced by one of a linear motor, an oil cylinder, a motor-driven lead screw nut mechanism, a motor-driven rack and pinion mechanism, a motor-driven crank slider mechanism, a motor-driven synchronous pulley synchronous belt mechanism, and a motor-driven sprocket chain mechanism.

[0057] Specifically, referring to Figure 1 , the adjusting unit 400 includes a first sliding assembly 410, a lead screw nut assembly 420, a second mounting seat 430, and a third mounting seat 440. The first sliding assembly 410 includes a first slider and a first slide rail. The first slider is slidably connected to the first slide rail. The first slider is fixedly connected to the second mounting seat 430, and the first slide rail is fixedly connected to the third mounting seat 440. Moreover, the length direction of the first slide rail is arranged along the first direction. It should be noted that the first sliding assembly 410 can also adopt other structures, such as a slider chute structure.

[0058] The lead screw nut assembly 420 includes a lead screw and a nut. The lead screw and the nut are in threaded engagement. The two ends of the lead screw are rotatably connected to the third mounting seat 440 (achieved through bearings), and the nut is fixedly connected to the second mounting seat 430. The heating unit 200 is installed on the second mounting seat 430, and the pressing unit 300 is also installed on the second mounting seat 430.

[0059] Thus, by manually or motor-driven rotation of the lead screw, the positions of the heating unit 200 and the pressing unit 300 along the first direction can be adjusted.

[0060] In another embodiment, the lead screw nut assembly 420 can be replaced by one of a linear motor, a motor-driven rack and pinion mechanism, a motor-driven crank slider mechanism, a motor-driven synchronous pulley synchronous belt mechanism, and a motor-driven sprocket chain mechanism.

[0061] It should be noted that with appropriate reference to Figure 1 ( Figure 1The number of heating units 200 is four). When the number of heating units 200 increases (for example, two or four), in order to facilitate installation and maintenance, the distance between two adjacent heating units 200 needs to be increased (implemented by the opening and closing assembly 500, see the following for details). At this time, one first sliding assembly 410, one lead screw nut assembly 420, one second mounting seat 430, and one third mounting seat 440 are set as a working group, and two working groups will be set. Two heating units 200 will be respectively installed on the second mounting seats 430 of the two working groups. The two working groups will respectively adjust the positions of the two heating units 200 in the first direction, and at the same time, it does not affect the adjustment of the distance between the two heating units 200 in the second direction. That is, there are multiple embodiments for the specific structure of the adjusting unit 400, and the specific structure of the adjusting unit 400 will change according to the number of heating units 200.

[0062] It should be noted that, referring to Figure 1 , in order to facilitate installation and maintenance, two working groups will be set, and the first pressing roller 320 and the second pressing roller 330 will be respectively installed on the second mounting seats 430 of the two working groups. When installation and maintenance are required, the distance between the second mounting seats 430 of the two working groups is increased (implemented by the opening and closing assembly 500, see the following for details), so as to facilitate installation and maintenance.

[0063] Proper reference to Figure 1 and Figure 3 , it should be noted that Figure 3 At the front end of the pole piece 110 in

[0064] , there are two first pasting areas 114, and at the rear end of the pole piece 110, there are two second pasting areas 115, so it is for reference only. In some embodiments of the present application, it is assumed that the two pasting areas 113 located at the same end of the pole piece 110 are both first pasting areas 114, and there are two heating units 200. One heating unit 200 is used to heat the hot melt tape 120 located in one first pasting area 114, and the other heating unit 200 is used to heat the hot melt tape 120 located in the other first pasting area 114.

[0065] By respectively heating the two hot melt tapes 120 located at the same end of the pole piece 110 by the two heating units 200, the pasting module can complete the pasting of the two hot melt tapes 120 at the same end of the pole piece 110 at one time, and the efficiency of the pasting module for attaching the hot melt tape 120 is higher.

[0066] Referring to Figure 1 andFigure 4 In the improved solution of the above embodiment, the glue - sticking module further includes an opening - closing component 500. Let the thickness direction of the pole piece 110 be the second direction (refer to Figure 1 , for example, the second direction is the left - right direction). The opening - closing component 500 is used to adjust the distance between the two heating units 200 along the second direction.

[0067] By adjusting the distance between the two heating units 200 along the second direction, it is convenient to install and maintain the heating units 200, which is beneficial to improving the installation and maintenance efficiency of the glue - sticking module.

[0068] Specifically, there are two working groups, and the two heating units 200 are respectively installed on the second mounting seats 430 of the two working groups. The opening - closing component 500 includes a second air cylinder 510 and a second sliding component 520. There are two second air cylinders 510. The second sliding component 520 includes a second slide rail 522 and at least two second sliders 521. All of the at least two second sliders 521 are slidably connected to the second slide rail 522. At least one second slider 521 is fixedly connected to one third mounting seat 440, and the remaining second sliders 521 are fixedly connected to the other third mounting seat 440. The length direction of the second slide rail 522 is arranged along the second direction. The piston rod of one second air cylinder 510 is connected to one third mounting seat 440 through a floating joint, and the piston rod of the other second air cylinder 510 is connected to the other third mounting seat 440 through a floating joint.

[0069] Thus, when the second air cylinder 510 is ventilated and works, the distance between the two heating units 200 along the second direction can be adjusted.

[0070] In another embodiment, at least one of the two second air cylinders 510 can be replaced by one of a linear motor, an oil cylinder, a motor - driven lead screw - nut mechanism, a motor - driven gear - rack mechanism, a motor - driven crank - slider mechanism, a motor - driven synchronous pulley - synchronous belt mechanism, and a motor - driven sprocket - chain mechanism.

[0071] With appropriate reference to Figure 1 and Figure 3 , it should be noted that Figure 3The front end of the electrode tab 110 is provided with two first pasting areas 114, and the rear end of the electrode tab 110 is provided with two second pasting areas 115. Therefore, this is for reference only. In some embodiments of the present application, the two pasting areas 113 located on the same side 116 of the electrode tab 110 are respectively the first pasting area 114 and the second pasting area 115. There are two heating units 200. One heating unit 200 is used to heat the hot melt adhesive tape 120 located in the first pasting area 114, and the other heating unit 200 is used to heat the hot melt adhesive tape 120 located in the second pasting area 115. There are two pressing units 300. One pressing unit 300 is used to roll-press the electrode tab 110 and the hot melt adhesive tape 120 located in the first pasting area 114, and the other pressing unit 300 is used to roll-press the electrode tab 110 and the hot melt adhesive tape 120 located in the second pasting area 115.

[0072] By respectively heating the two hot melt adhesive tapes 120 located on the same side 116 of the electrode tab 110 through the two heating units 200, the tape pasting module can complete the pasting of the two hot melt adhesive tapes 120 on the same side 116 of the electrode tab 110 at one time, and the efficiency of the tape pasting module for attaching the hot melt adhesive tape 120 is higher.

[0073] In addition, the two heating units 200 respectively heat the two hot melt adhesive tapes 120 located on the same side 116 of the electrode tab 110 in a targeted manner. The hot melt adhesive tape 120 is heated more evenly, the bonding area between the hot melt adhesive tape 120 and the tab 112 is larger, and the peeling force after the hot melt adhesive tape 120 is bonded to the tab 112 is greater.

[0074] It should be noted that the two sides 116 of the electrode tab 110 are usually coated with an active material layer 117, and the active material layer 117 is adjacent to the hot melt adhesive tape 120 pasted on the electrode tab 110.

[0075] Refer to Figure 1 and Figure 3 Assume that the two pasting areas 113 at one end of the electrode tab 110 are both the first pasting area 114, and the two pasting areas 113 at the other end of the electrode tab 110 are both the second pasting area 115. There are four heating units 200. The first heating unit 200 is used to heat the hot melt adhesive tape 120 located in one first pasting area 114, the second heating unit 200 is used to heat the hot melt adhesive tape 120 located in the other first pasting area 114, the third heating unit 200 is used to heat the hot melt adhesive tape 120 located in one second pasting area 115, and the fourth heating unit 200 is used to heat the hot melt adhesive tape 120 located in the other second pasting area 115. There are two pressing units 300. One pressing unit 300 is used to roll-press the electrode tab 110 and the hot melt adhesive tapes 120 located in the two first pasting areas 114, and the other pressing unit 300 is used to roll-press the electrode tab 110 and the hot melt adhesive tapes 120 located in the two second pasting areas 115.

[0076] By using two heating units 200 to heat two hot melt tapes 120 located at one end of the pole piece 110 respectively, and by using another two heating units 200 to heat two hot melt tapes 120 located at the other end of the pole piece 110 respectively, the tape sticking module can complete the sticking of the four hot melt tapes 120 at both ends of the pole piece 110 at one time, and the efficiency of the tape sticking module for sticking the hot melt tapes 120 is higher.

[0077] In addition, the four heating units 200 heat the four hot melt tapes 120 respectively in a targeted manner, the hot melt tapes 120 are heated more evenly, the bonding area between the hot melt tapes 120 and the pole lugs 112 is larger, and the peeling force after the hot melt tapes 120 are bonded to the pole lugs 112 is greater.

[0078] It should be noted that, referring to Figure 1 , when there are four heating units 200 and two pressing units 300, the adjusting unit 400 includes two first sliding components 410, four screw nut components 420, two second mounting seats 430 and four third mounting seats 440. One first sliding component 410, two screw nut components 420, one second mounting seat 430 and two third mounting seats 440 form a working group, and there are two working groups in total.

[0079] For any one of the working groups: The first sliding component 410 includes a first slide rail and two first sliders. Both of the two first sliders are slidably connected to the first slide rail, and the two first sliders are respectively fixedly connected to the two third mounting seats 440. The nut of one screw nut component 420 is fixedly connected to one third mounting seat 440, and the nut of the other screw nut component 420 is fixedly connected to the other third mounting seat 440.

[0080] The four heating units 200 are respectively fixed to the four third mounting seats 440, the two first pressing rollers 320 are respectively mounted on the two third mounting seats 440 in one working group, and the two second pressing rollers 330 are respectively mounted on the two third mounting seats 440 in the other working group. Thus, the position of each heating unit 200 in the first direction can be adjusted independently.

[0081] Referring to Figure 1 and Figure 4 , in the improvement scheme of the above embodiments, the tape sticking module further includes an opening and closing component 500. Assuming that the thickness direction of the pole piece 110 is the second direction, the opening and closing component 500 is used to adjust the distance between the first heating unit 200 and the second heating unit 200 in the second direction, and the opening and closing component 500 is also used to adjust the distance between the third heating unit 200 and the fourth heating unit 200 in the second direction.

[0082] By adjusting the distances of the first heating unit 200 and the second heating unit 200 along the second direction, and adjusting the distances of the third heating unit 200 and the fourth heating unit 200 along the second direction, the installation and maintenance of the heating unit 200 can be facilitated, which is conducive to improving the installation and maintenance efficiency of the tape sticking module.

[0083] Similarly, the opening and closing assembly 500 adjusts the distances of the two second mounting seats 430 along the second direction, thereby adjusting the distances of the first heating unit 200 and the second heating unit 200 along the second direction, and adjusting the distances of the third heating unit 200 and the fourth heating unit 200 along the second direction.

[0084] Refer to Figures 4 to 6 , in some embodiments of the present application, the tape sticking module further includes a preheating unit 600. The preheating unit 600 includes a second driving assembly 610, a first heating roller 620, and a roller 630. The second driving assembly 610 is used to drive the first heating roller 620 and the roller 630 to approach each other, so that the first heating roller 620 and the roller 630 roll-press the pole piece 110 and the hot melt tape 120 located in the sticking area 113 together. The second driving assembly 610 is also used to drive the first heating roller 620 and the roller 630 to move away from each other. Among them, the heating unit 200 is used to heat the hot melt tape 120 after being roll-pressed by the first heating roller 620 and the roller 630.

[0085] When the first heating roller 620 and the roller 630 roll-press the pole piece 110 and the hot melt tape 120 located in the sticking area 113, the hot melt tape 120 is preheated and also squeezed, so that the bubbles and gaps between the hot melt tape 120 and the pole piece 110 can be greatly reduced. After the heating unit 200 reheats the hot melt tape 120, the viscosity of the hot melt tape 120 is better. After the pressing unit 300 roll-presses the pole piece 110 and the hot melt tape 120, the hot melt tape 120 can be better pasted on the pole piece 110, and the bubbles and gaps between the hot melt tape 120 and the pole piece 110 can be further reduced, and the hot melt tape 120 is more firmly pasted to the pole ear 112.

[0086] Specifically, the structure of the second driving assembly 610 can refer to the first driving assembly 310, which will not be repeated here. In each embodiment, the number of the preheating unit 600 is the same as that of the pressing unit 300, and one first heating roller 620 and one first pressing roller 320 are installed on the same second mounting seat 430, and one roller 630 and one second pressing roller 330 are installed on the same second mounting seat 430.

[0087] Refer to Figure 4 , in the improvement scheme of the above embodiment, the roller 630 includes a second heating roller 631.

[0088] After the roller 630 is set as the second heating roller 631, together with the first heating roller 620, the two sides of the hot melt tape 120 can be heated. As a result, the hot melt tape 120 is heated more evenly, the bonding area between the hot melt tape 120 and the tab 112 is larger, and the peel strength after the hot melt tape 120 is bonded to the tab 112 is greater.

[0089] Specifically, the second heating roller 631 can be one of an electric heating roller, a water heating roller, a heat transfer oil heating roller, a steam heating roller, and an electromagnetic induction heating roller.

[0090] Refer to Figure 4 In the improved solution of the above embodiment, the preheating unit 600 further includes two temperature sensors 640, which are respectively used to detect the temperatures of the first heating roller 620 and the second heating roller 631.

[0091] By providing the temperature sensors 640, the temperatures of the first heating roller 620 and the second heating roller 631 can be monitored in real time, which is beneficial to the closed-loop control of the temperatures of the first heating roller 620 and the second heating roller 631.

[0092] Specifically, the first heating roller 620 can be an electric heating roller. After the temperature sensor 640 detects the temperature of the electric heating roller, a feedback signal is generated. After receiving the feedback signal, a controller (such as a programmable logic controller) compares the current temperature of the first heating roller 620 with the target temperature through a PID algorithm and generates an adjustment signal. After receiving the adjustment signal, the electric heating roller adjusts the output power to adjust the temperature, thereby completing the closed-loop control of the temperature.

[0093] Specifically, the temperature sensor 640 can be one of an infrared temperature sensor, a thermocouple, and a thermistor. The first heating roller 620 can also be one of a water heating roller, a heat transfer oil heating roller, a steam heating roller, and an electromagnetic induction heating roller.

[0094] The temperature control process and specific type of the second heating roller 631 are similar and will not be repeated here.

[0095] Refer to Figure 7 In some embodiments of the present application, the heating unit 200 includes one of an electromagnetic heater, a microwave heater, an infrared heater, a hot air heater, and a heating roller.

[0096] The acquisition costs of the electromagnetic heater, the microwave heater, the infrared heater, the hot air heater, and the heating roller are relatively low, which is beneficial to reducing the production cost of the tape sticking module.

[0097] Refer to Figure 7, in some embodiments, the heating unit 200 includes a housing 210, a fan 220, and an infrared light-emitting diode 230. The housing 210 is provided with an inner cavity 211, an air inlet hole, an air outlet hole 212, and a light-emitting hole 213. The air inlet hole, the air outlet hole 212, and the light-emitting hole 213 are all in communication with the inner cavity 211. The infrared light-emitting diode 230 is located in the inner cavity 211, and the infrared light-emitting diode 230 is detachably connected to the housing 210 (connected by fasteners or fixed by snap connection). The infrared light emitted by the infrared light-emitting diode 230 irradiates the hot melt adhesive tape 120 through the light-emitting hole 213. The fan 220 is fixed to the housing 210 by fasteners, and the fan 220 blows air into the inner cavity 211 through the air inlet hole, and the hot air leaves the inner cavity 211 through the air outlet hole 212. The fan 220 is mainly used for cooling the housing 210.

[0098] Referring to Figure 8 The laser die-cutting machine according to the second aspect embodiment of the present application includes a tape-applying module and a laser device 700. The laser device 700 is configured to emit a laser to cut an initial pole piece 110 into a plurality of pole pieces 110.

[0099] The laser die-cutting machine according to the embodiment of the present application has at least the following beneficial effects: by using the above-mentioned tape-applying module, the laser die-cutting machine can produce pole pieces 110 with different widths, and the compatibility of the laser die-cutting machine is stronger.

[0100] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present application within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. The glue sticking module is characterized in that: The pole piece includes a current collector and a pole ear. The edge area of ​​the current collector close to the pole ear is set as a pasting area. The width direction of the pole piece is set as a first direction. The pasting module includes: A heating unit, used for heating the hot melt adhesive tape located in the pasting area; The pressing unit comprises a first driving assembly, a first pressing roller and a second pressing roller, wherein the first driving assembly is used to drive the first pressing roller and the second pressing roller to move closer to each other, so that the first pressing roller and the second pressing roller together press the pole piece and the hot melt adhesive tape heated by the heating unit; the first driving assembly is also used to drive the first pressing roller and the second pressing roller to move away from each other; The adjusting unit is used to adjust the position of the heating unit along the first direction, and the adjusting unit is also used to adjust the position of the pressing unit along the first direction.

2. The adhesive laminating module according to claim 1, characterized in that The two pasting areas located at the same end of the pole piece are both first pasting areas, and two heating units are provided, one heating unit is used to heat the hot melt tape located at one first pasting area, and the other heating unit is used to heat the hot melt tape located at another first pasting area.

3. The adhesive laminating module according to claim 2, characterized in that: It also includes an opening and closing component. Assuming that the thickness direction of the pole piece is a second direction, the opening and closing component is used to adjust the distance between the two heating units along the second direction.

4. The adhesive laminating module according to claim 1, characterized in that The two pasting areas located on the same side of the electrode piece are respectively the first pasting area and the second pasting area; there are two heating units, one of which is used to heat the hot melt tape located in the first pasting area, and the other heating unit is used to heat the hot melt tape located in the second pasting area; there are two pressing units, one of which is used to roll the electrode piece and the hot melt tape located in the first pasting area, and the other pressing unit is used to roll the electrode piece and the hot melt tape located in the second pasting area.

5. The adhesive laminating module according to claim 1, characterized in that The two pasting areas at one end of the pole piece are both the first pasting areas, and the two pasting areas at the other end of the pole piece are both the second pasting areas; there are four heating units, the first heating unit is used to heat the hot melt tape located in one of the first pasting areas, the second heating unit is used to heat the hot melt tape located in another of the first pasting areas, the third heating unit is used to heat the hot melt tape located in one of the second pasting areas, and the fourth heating unit is used to heat the hot melt tape located in another of the second pasting areas; there are two pressing units, one pressing unit is used to roll the pole piece and the hot melt tape located in the two first pasting areas, and the other pressing unit is used to roll the pole piece and the hot melt tape located in the two second pasting areas.

6. The adhesive laminating module according to claim 5, characterized in that: It also includes an opening and closing component. Assuming that the thickness direction of the pole piece is the second direction, the opening and closing component is used to adjust the distance between the first heating unit and the second heating unit along the second direction. The opening and closing component is also used to adjust the distance between the third heating unit and the fourth heating unit along the second direction.

7. The adhesive laminating module according to any one of claims 1 to 6, characterized in that: Also included is a preheating unit, the preheating unit comprising: a first heating roller; Roller; a second driving assembly, used for driving the first heating roller and the roller wheel to move closer to each other, so that the first heating roller and the roller wheel roll the pole piece and the hot melt adhesive tape located in the pasting area together; the second driving assembly is also used for driving the first heating roller and the roller wheel to move away from each other; Wherein, the heating unit is used to heat the hot melt adhesive tape after being rolled by the first heating roller and the roller.

8. The adhesive laminating module according to claim 7, characterized in that: The rollers include a second heated roller.

9. The adhesive laminating module according to any one of claims 1 to 6, characterized in that: The heating unit includes one of an electromagnetic heater, a microwave heater, an infrared heater, a hot air heater and a heating roller.

10. Laser die cutting machine, characterized in that, include: The adhesive laminating module according to any one of claims 1 to 9; The laser device is used for emitting laser to cut the initial pole piece into a plurality of the pole pieces.

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