Automatic tape winding device and pole piece hot compounding equipment

Abstract

The utility model provides an automatic band connecting device and pole piece hot compound equipment, the automatic band connecting device includes the band connecting platform, the band connecting platform sets up and places the material tape of waiting to compound, first material roll and first movable platform, first movable platform sets up and places the material tape of first material roll, second material roll and second movable platform, second movable platform sets up and places the material tape of second material roll, wherein, first movable platform or second movable platform is spliced along the direction parallel to the band connecting platform, so that the material tape of first material roll or the material tape of second material roll is connected with the material tape of waiting to compound along first direction, and first direction is parallel to the direction of band connecting platform.

Description

Technical Field

[0001] This utility model relates to the field of electrode thermal bonding technology, specifically to an automatic tape-attaching device and electrode thermal bonding equipment. Background Technology

[0002] In related technologies, in lamination thermal lamination equipment, to adapt to the equipment's cycle time, the electrode or diaphragm strips to be laminated are typically made of dual strips. One strip is a spare strip, and the other is a working strip. The lamination thermal lamination equipment automatically switches between the working and spare strips to achieve higher uptime. However, currently, during the strip switching process, dust can easily fall off during splicing, affecting splicing quality and even causing strip breakage due to abnormalities. Utility Model Content

[0003] The present invention provides an automatic splicing device and an electrode thermal bonding equipment, which can improve the technical problems of poor splicing quality or even breakage caused by the automatic splicing device.

[0004] In a first aspect, embodiments of the present invention provide an automatic belt-attaching device, comprising:

[0005] A tape receiving platform, wherein the tape receiving platform is configured to hold the tape to be composited;

[0006] A first feeding roll and a first movable platform, wherein the first movable platform is connected to the first feeding roll and is configured to hold the material strip of the first feeding roll;

[0007] The second feeding roll and the second movable platform are connected to the second feeding roll and are configured to hold the material strip of the second feeding roll.

[0008] The first or second movable platform is spliced ​​along a direction parallel to the receiving platform, so that the material strip of the first or second unloading roll is spliced ​​with the material strip to be composited along a first direction, which is parallel to the direction of the receiving platform.

[0009] In one embodiment, the first unloading roll and the first unloading roll are spaced apart along a second direction, which is perpendicular to the direction of the receiving platform.

[0010] In one embodiment, the first movable platform and the second movable platform are arranged at a distance along a second direction. The first movable platform can move relative to the receiving platform in the second direction toward a direction closer to or away from the receiving platform. Alternatively, the second movable platform can move relative to the receiving platform in the second direction in the second direction toward a direction away from or closer to the receiving platform, wherein the second direction is perpendicular to the direction of the receiving platform.

[0011] In one embodiment, the automatic tape-connecting device further includes a platform driver connected to the first movable platform and the second movable platform. The platform driver is configured to drive the first movable platform and the second movable platform to move along the second direction, such that one of the first movable platform and the second movable platform moves toward the tape-connecting platform, and the other of the first movable platform and the second movable platform moves away from the tape-connecting platform.

[0012] In one embodiment, the automatic tape splicing device further includes a bonding mechanism, which includes a bonding component configured to bond the tape of the first unloading roll or the tape of the second unloading roll to the tape to be laminated.

[0013] In one embodiment, the bonding assembly includes an adhesive and an adsorbent, the adsorbent being configured to adsorb the adhesive.

[0014] In one embodiment, the bonding mechanism further includes a flipping drive member connected to the bonding assembly and configured to move the bonding assembly between a first position and a second position. When the bonding assembly is in the first position, the bonding assembly is located at the junction of the first or second movable platform and the tape-connecting platform; when the bonding assembly is in the second position, the bonding assembly is located on the tape-connecting platform.

[0015] In one embodiment, the automatic feeding device further includes a cutting mechanism, which includes a cutting component configured to cut the material strip of the first feeding roll or the material strip of the second feeding roll.

[0016] In one embodiment, the cutting mechanism further includes a movable component connected to the cutting member and configured to drive the cutting member to move in a third direction.

[0017] Secondly, embodiments of this utility model provide an electrode thermal bonding equipment, which includes an automatic tape-feeding device and an electrode thermal bonding device. The automatic tape-feeding device is configured to provide the tape to be bonded to the electrode thermal bonding device for hot rolling to form a thermally bonded electrode assembly. The automatic tape-feeding device includes the aforementioned automatic tape-feeding device.

[0018] The beneficial effects of the embodiments of this utility model are as follows:

[0019] In embodiments of this invention, since the first or second movable platform is spliced ​​along a first direction, the strip from the first or second unloading roll is spliced ​​with the strip to be laminated on the receiving platform along the first direction. This first direction is set parallel to the receiving platform, thereby avoiding the influence of gravity and improving the splicing quality. Furthermore, since the strip from the first or second unloading roll is spliced ​​with the strip to be laminated on the receiving platform along a direction parallel to the receiving platform, it improves the prevention of dust from falling onto the rollers near the first or second movable platform due to gravity, reducing the occurrence of splicing abnormalities. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the adsorption mechanism of the automatic tape-attaching device provided in an embodiment of the present invention in the first position;

[0022] Figure 2 This is a three-dimensional schematic diagram of the adsorption mechanism of the automatic tape-attaching device provided in an embodiment of the present invention in the second position;

[0023] Figure 3 This is a three-dimensional schematic diagram showing the splicing of the second movable platform and the tape-connecting platform of the automatic tape-connecting device provided in an embodiment of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the first movable platform and the tape-connecting platform spliced ​​together in an embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional schematic diagram of the cutting mechanism and adsorption mechanism of the automatic tape-attaching device provided in an embodiment of this utility model;

[0026] Icon labels:

[0027] 100. Automatic conveyor belt connection device;

[0028] 1. Receiving platform; 11. Material strip to be laminated; 12. First pressure plate;

[0029] 2. First unloading coil; 21. First movable platform; 22. Second pressure plate;

[0030] 3. Second unloading coil; 31. Second movable platform; 32. Third pressure plate;

[0031] 4. Platform drivers;

[0032] 5. Adhesion mechanism; 51. Adhesion assembly; 511. Adsorption component; 52. Tilting drive component; 53. Connecting rod;

[0033] 6. Cutting mechanism; 61. Cutting parts; 62. Moving components;

[0034] 7. Roller pass; Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0036] In related technologies, in lamination thermal lamination equipment, to adapt to the cycle time of the thermal lamination equipment, the electrode or diaphragm material strips to be laminated are usually made of double-rolled material. One roll is a spare roll, and the other is a working roll. The lamination thermal lamination equipment automatically switches between the working and spare rolls to achieve a higher utilization rate. However, since the spare and working rolls are on the same horizontal plane, the unwinding length of the double-rolled material is relatively long, occupying more space. Furthermore, during the switching process, the double-rolled material, being on the same horizontal plane, requires a vertical semi-automatic splicing method. Due to gravity, vertical splicing leads to poor splicing quality, and dust falling during splicing affects the cleanliness of the unwinding rollers, easily causing abnormalities and breakage of the material roll.

[0037] Embodiments of this application provide an automatic belt-attaching device 100, such as... Figures 1 to 3 As shown, the automatic tape receiving device 100 includes a tape receiving platform 1, a first unloading roll 2, a first movable platform 21, a second unloading roll 3, a second movable platform 31, and multiple rollers 7.

[0038] The receiving platform 1 is configured to hold the composite strip 11, which can be a positive electrode sheet, a negative electrode sheet, or a separator. A first pressure plate 12 is also fixed on the receiving platform 1. The first pressure plate 12 is movable. During the movement of the composite strip 11, the first pressure plate 12 is positioned close to the receiving platform 1 to provide clamping force to the composite strip 11, ensuring stable tension during movement. When the composite strip 11 is stationary, the first pressure plate 12 is moved away from the receiving platform 1, allowing the composite strip 11 to be manually adjustable.

[0039] A first movable platform 21 is connected to the first unwinding roll 2 and is configured to hold the material strip of the first unwinding roll 2. The first movable platform 21 is located on the side of the first unwinding roll 2 closest to the receiving platform 1, and is closer to the receiving platform 1 than the first unwinding roll 2. A second pressure plate 22 is fixed to the first movable platform 21. The second pressure plate 22 is movable; during the movement of the material strip of the first unwinding roll 2, the second pressure plate 22 is positioned close to the first movable platform 21 to provide a clamping force on the material strip of the first unwinding roll 2, ensuring stable tension during movement. When the first unwinding roll 2 is stationary, the second pressure plate 22 moves away from the first movable platform 21, allowing the material strip of the first unwinding roll 2 to be manually adjustable.

[0040] The second movable platform 31 is connected to the second unwinding roll 3 and is configured to hold the material strip of the second unwinding roll 3. The second movable platform 31 is located on the side of the second unwinding roll 3 closest to the receiving platform 1, and is closer to the receiving platform 1 than the second unwinding roll 3. A third pressure plate 32 is also fixed on the second movable platform 3. The third pressure plate 32 is movable; during the movement of the material strip of the second unwinding roll 3, the third pressure plate 32 is positioned close to the second movable platform 31 to provide a clamping force on the material strip of the second unwinding roll 3, ensuring a stable tension during movement. When the second unwinding roll 3 is stationary, the third pressure plate 32 is moved away from the second movable platform 31, allowing the material strip of the second unwinding roll 3 to be manually adjustable.

[0041] Multiple guide rollers 7 are configured to move the material strip of the first unwinding roll 2, the material strip of the second unwinding roll 3, and the composite material strip 11. The multiple guide rollers 7 include an upper guide roller and a lower guide roller for driving the material strip of the first unwinding roll 2. The upper and lower guide rollers are located on the upper and lower sides of the material strip of the first unwinding roll 2 and are spaced apart to maintain stable tension during movement. The lower guide roller is positioned close to the second pressure plate 22. The multiple guide rollers 7 also include an upper guide roller and a lower guide roller for driving the material strip of the second unwinding roll 3. The upper and lower guide rollers are located on the upper and lower sides of the material strip of the second unwinding roll 3 and are spaced apart to maintain stable tension during movement. The upper guide roller is positioned close to the third pressure plate 32. The multiple rollers 7 also include an upper roller and a lower roller for driving the composite strip 11. The upper roller and the lower roller are located on the upper and lower sides of the composite strip 11 and are spaced apart, with the lower roller located close to the first pressure plate 12.

[0042] In some embodiments provided in this application, such as Figures 2 to 4 As shown, the first active platform 21 or the second active platform 31 are spliced ​​along the first direction so that the material strip of the first unloading roll 2 or the material strip of the second unloading roll 3 is spliced ​​with the material strip 11 to be composited on the receiving platform 1 along the first direction, wherein the first direction is set to be parallel to the receiving platform 1.

[0043] like Figure 2 The x-direction shown is the first direction. It is understood that because the first movable platform 21 or the second movable platform 31 is spliced ​​along the first direction, the material strip of the first unloading roll 2 or the material strip of the second unloading roll 3 is spliced ​​with the material strip 11 to be laminated on the splicing platform 1 along the first direction. The first direction is set parallel to the splicing platform 1, thereby avoiding the influence of gravity and improving the splicing quality. On the other hand, because the material strip of the first unloading roll 2 or the material strip of the second unloading roll 3 is spliced ​​with the material strip 11 to be laminated on the splicing platform 1 along a direction parallel to the splicing platform 1, it is possible to improve the prevention of splicing dust falling onto the roller 7 near the first movable platform 21 or the second movable platform 31, reducing the occurrence of splicing abnormalities.

[0044] In some embodiments, the first unwinding roll 2 and the second unwinding roll 3 are spaced apart along a second direction, which is set to be perpendicular to the tape receiving platform 1. Figure 2 The z-direction is shown. The second direction can also be set at an angle to the first direction, and this angle is not limited to 90°.

[0045] Compared to related technologies, where the first unloading roll 2 and the second unloading roll 3 are placed horizontally, and since the first unloading roll 2 and the second unloading roll 3 are spaced apart along a second direction, which is set to be perpendicular to the receiving platform 1, the space occupied by the first unloading roll 2, the first movable platform 21, the second unloading roll 3, and the second movable platform 31 can be reduced as a whole.

[0046] In some embodiments, continue to refer to Figures 2 to 4 The first movable platform 21 and the second movable platform 31 are spaced apart along a direction perpendicular to the receiving platform 1. The first movable platform 21 can move relative to the receiving platform 1 in a second direction toward or away from the receiving platform 1, and the second movable platform 31 can move relative to the receiving platform 1 in a second direction toward or away from the receiving platform 1, so as to realize the switching of the first unloading roll 2 and the second unloading roll 3.

[0047] For example, when the feeding of the first unloading roll 2 is switched to the feeding of the second unloading roll 3, the first movable platform 21 is driven to move away from the receiving platform 1, and the second movable platform 31 is driven to move towards the receiving platform 1 until it is flush with the receiving platform 1. Figure 3 As shown. When the second unloading roll 3 switches to the first unloading roll 2, the second movable platform 31 is driven to move away from the receiving platform 1, and the first movable platform 21 is driven to move closer to the receiving platform 1 until it is flush with the receiving platform 1, as shown. Figure 4 As shown.

[0048] In some embodiments, such as Figure 1 and Figure 2 As shown, the automatic tape-connecting device 100 also includes a platform drive 4, which is connected to the first movable platform 21 and the second movable platform 31. The platform drive 4 is configured to drive the first movable platform 21 and the second movable platform 31 to move in a second direction, such that one of the first movable platform 21 and the second movable platform 31 moves toward the tape-connecting platform 1, and the other of the first movable platform 21 and the second movable platform 31 moves away from the tape-connecting platform 1.

[0049] It is understandable that since the first active platform 21 and the second active platform 31 are spaced apart along the second direction, the same platform drive unit 4 can be used to drive the first active platform 21 and the second active platform 31 to move synchronously along the second direction, thereby simplifying the overall structure of the automatic belt connecting device.

[0050] The platform drive component 4 includes a rodless cylinder, and the platform drive component 4 is connected to the same side of the first movable platform 21 and the second movable platform 31.

[0051] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the automatic tape splicing device 100 also includes a bonding mechanism 5, which includes a bonding component 51. The bonding component 51 is configured to bond the tape of the first unloading roll 2 to the tape to be laminated 11, or the bonding component 51 is configured to bond the tape of the second unloading roll 3 to the tape to be laminated 11.

[0052] By setting the bonding component 51, after the automatic tape splicing device 100 switches from the first unwinding roll 2 to the second unwinding roll 3, it uses the bonding component 51 to bond the material of the second unwinding roll 3 to the material strip 11 to be laminated, thereby performing the subsequent unwinding operation. Similarly, after the automatic tape splicing device 100 switches from the second unwinding roll 3 to the first unwinding roll 2, it uses the bonding component 51 to bond the material of the first unwinding roll 2 to the material strip 11 to be laminated, thereby performing the subsequent unwinding operation.

[0053] In some embodiments, the bonding assembly 51 includes an adhesive (not shown) and an adsorption member 511. The adsorption member 511 is configured to adsorb the adhesive member, and the adhesive member is configured to bond the material strip of the first unloading roll 2 or the material strip of the second unloading roll 3 to the material strip 11 to be bonded. The adsorption member 511 includes a suction cup with holes, and the adhesive member includes adhesive tape.

[0054] In some embodiments, the bonding mechanism 5 further includes a flipping drive 52, which is connected to the bonding assembly 51 via a bent connecting rod 53. The flipping drive 52 is configured to flip the bonding assembly 51 between a first position and a second position. Figure 1 As shown, when the bonding component 51 is in the first position, the bonding component 51 is located at the junction of the first movable platform 21 or the second movable platform 31 and the receiving platform 1, so that the bonding component 51 can bond the material strip of the first unloading roll 2 or the material strip of the second unloading roll 3 to the material strip 11 to be laminated. Figure 2 As shown, when the bonding component 51 is in the second position, the bonding component 51 is located above the tape receiving platform 1 so that the first unwinding roll 2 or the second unwinding roll 3 can be unwound normally.

[0055] The flipping drive 52 includes a motor and is connected to the adsorption member 511 via a bent connecting rod 53.

[0056] In some embodiments, such as Figure 1 , Figure 2 as well as Figure 5 As shown, the automatic feeding device 100 also includes a cutting mechanism 6, which includes a cutting element 61. The cutting element 61 is configured to cut the material strip of the first feeding roll 2 or the material strip of the second feeding roll 3. The cutting element 61 can be a cutter.

[0057] During the process of switching from the first feed roll 2 to the second feed roll 3, the material strip of the first feed roll 2 on the first movable platform 21 needs to be cut using the cutting piece 61 to separate it from the material strip to be composite placed on the receiving platform 1. Similarly, during the process of switching from the second feed roll 3 to the first feed roll 2, the material strip of the second feed roll 3 on the second movable platform 31 needs to be cut using the cutting piece 61.

[0058] In some embodiments, the cutting mechanism 6 further includes a movable component 62 connected to the cutting member 61. The movable component 62 is configured to drive the cutting member 61 to move along a third direction, wherein the third direction is perpendicular to the first or second direction. The third direction is as follows: Figure 2 The y-direction shown is set as the width direction of the material strip of the first feed roll 2 or the second feed roll 3, so that the material strip of the first feed roll 2 or the third feed roll 3 can be cut by the cutter 61 to form a neat edge.

[0059] In some embodiments, the automatic tape feeding device 100 is further provided with a dust suction port (not shown in the figure), which is located below the cutting member 61, so that the dust generated during the cutting of the first feed roll 2 or the second feed roll 3 can enter the dust suction port and be absorbed, thereby avoiding dust contamination of the tape to be composited.

[0060] The embodiments of this application also provide a method for changing and splicing tape in the above-described automatic tape splicing device 100. Taking the switching of the tape from the first unloading roll 2 to the tape from the second unloading roll 3 as an example, the method for changing and splicing tape includes:

[0061] The adhesive is adsorbed onto the adsorbent;

[0062] The second unwinding coil is unwound and prepared, and the second active platform enters the material preparation area;

[0063] When the material strip of the first unloading roll is used up, the second pressure plate 22 on the first movable platform 21 and the first pressure plate 12 on the tape receiving platform 1 press down the material strip.

[0064] The active component 62 drives the cutting component 61 to cut the material strip at the splicing point between the connecting platform 1 and the first active platform 21;

[0065] The platform drive component 4 is lifted, and drives the first movable platform 2 to move along the second direction to the material preparation area, while simultaneously driving the second movable platform 3 to move along the second direction to the docking point of the receiving platform 1.

[0066] The flipping drive 52 drives the bonding component 51 to the docking point between the second movable platform 3 and the receiving platform 1. The bonding component 51 bonds the material strip of the second unloading roll 3 of the second movable platform 31 to the material strip 11 to be composited on the receiving platform 1.

[0067] The first unloading roll 2 is manually replaced, and the head of the material strip of the first unloading roll 2 is moved to the end interface of the first moving platform 21 to ensure that its position is flat and accurate.

[0068] The application also provides an electrode thermal bonding device, which includes the automatic tape-joining device 100 and the thermal bonding device provided in the above embodiments. The automatic tape-joining device 100 is configured to automatically join the positive electrode strip, negative electrode strip, or separator strip roll. The thermal bonding device is configured to combine the positive electrode strip, negative electrode strip, and separator strip to be bonded by hot rolling to form a thermally bonded electrode assembly.

[0069] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automatic tape-connecting device, characterized in that, include: A tape receiving platform, wherein the tape receiving platform is configured to hold the tape to be composited; A first feeding roll and a first movable platform, wherein the first movable platform is used to place the material strip of the first feeding roll; The second feeding roll and the second movable platform are used to place the material strip of the second feeding roll; The first or second movable platform is spliced ​​along a direction parallel to the receiving platform, so that the material strip of the first or second unloading roll is spliced ​​with the material strip to be composited along a first direction, which is parallel to the direction of the receiving platform.

2. The automatic tape-connecting device according to claim 1, characterized in that, The first unloading roll and the first unloading roll are spaced apart along a second direction, which is at an angle to the receiving platform.

3. The automatic tape-connecting device according to claim 1, characterized in that, The first movable platform and the second movable platform are arranged at intervals along a second direction. The first movable platform can move relative to the receiving platform in the second direction toward a direction closer to or away from the receiving platform. Alternatively, the second movable platform can move relative to the receiving platform in the second direction in the second direction toward a direction away from or closer to the receiving platform. The second direction is set at an angle to the receiving platform.

4. The automatic tape-connecting device according to claim 3, characterized in that, The automatic tape-connecting device further includes a platform drive component connected to the first movable platform and the second movable platform. The platform drive component is configured to drive the first movable platform and the second movable platform to move along the second direction, such that one of the first movable platform and the second movable platform moves toward the tape-connecting platform, and the other of the first movable platform and the second movable platform moves away from the tape-connecting platform.

5. The automatic tape-connecting device according to claim 1, characterized in that, The automatic tape splicing device further includes a bonding mechanism, which includes a bonding component configured to bond the tape of the first unloading roll or the tape of the second unloading roll to the tape to be laminated.

6. The automatic tape-connecting device according to claim 5, characterized in that, The bonding assembly includes an adhesive and an adsorption component, wherein the adsorption component is configured to adsorb the adhesive.

7. The automatic tape-connecting device according to claim 5, characterized in that, The bonding mechanism further includes a flipping drive, which is connected to the bonding component and configured to move the bonding component between a first position and a second position. When the bonding component is in the first position, it is located at the junction of the first or second movable platform and the tape-connecting platform. When the bonding component is in the second position, it is located on the tape-connecting platform.

8. The automatic tape-connecting device according to claim 1, characterized in that, The automatic tape feeding device further includes a cutting mechanism, which includes a cutting component configured to cut the tape of the first feeding roll or the tape of the second feeding roll.

9. The automatic tape-connecting device according to claim 8, characterized in that, The cutting mechanism further includes a movable component connected to the cutting piece and configured to drive the cutting piece to move along a third direction, which is parallel to the width direction of the material strip of the first or second unloading roll.

10. An electrode thermal bonding device, characterized in that, The electrode thermal bonding equipment includes an automatic tape-jointing device and an electrode thermal bonding device. The automatic tape-jointing device is configured to provide the tape to be bonded to the electrode thermal bonding device for hot rolling to form a thermally bonded electrode assembly. The automatic tape-jointing device includes the automatic tape-jointing device according to any one of claims 1 to 9.

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