Rubberizing mechanism and rubberizing equipment

Abstract

The utility model discloses a rubberizing mechanism and rubberizing equipment. The rubberizing mechanism comprises a rubberizing assembly, a detecting assembly and a rubberizing cutting assembly, the visual detection unit is arranged on the discharging side of the rubberizing assembly, the rubberizing cutting assembly with a dual-drive structure is arranged on the feeding side of the rubberizing assembly, a closed-loop control system of detection, cutting and deviation correction is formed, and real-time monitoring and timely correction of the rubberizing position are achieved. Compared with the prior art, the scheme breaks through the limitation that real-time adjustment cannot be achieved in the traditional rubberizing process, the accuracy of detection and the timeliness of deviation correction are ensured through separated layout of detection and execution, the rubberizing precision and the production efficiency can be remarkably improved through the rubberizing equipment comprising the rubberizing mechanism, and the production cost is reduced. And a reliable technical scheme is provided for realizing high-speed and high-precision automatic rubberizing.

Description

Technical Field

[0001] This utility model relates to the field of lithium batteries, and in particular to an adhesive application mechanism and adhesive application equipment. Background Technology

[0002] With the rapid development of the new energy industry, the market demands higher performance from lithium batteries, especially for high specific capacity and high rate capability of current collectors. To improve battery performance, achieving zero thinning of the coating edges during current collector production is crucial.

[0003] Currently, in the production process of current collectors, longitudinal adhesive application is commonly used to protect the tab area and prevent slurry from being coated onto the corresponding location. Specifically, adhesive tape is applied to the predetermined position of the current collector before coating, and then removed after coating, thus achieving zero longitudinal thinning. However, since the tape cannot be adjusted once applied, when the current collector shifts during transport, the tape position cannot be adjusted in real time. This easily leads to a mismatch between the protected area and the actual tab area, resulting in problems such as the inability to achieve real-time position correction, insufficient positioning accuracy, and low production efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an adhesive application mechanism and adhesive application equipment that can achieve real-time correction and high positioning accuracy.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An adhesive applicator includes: an adhesive applicator assembly for applying adhesive tape to a current collector; a detection assembly including a vision detection unit located on the current collector outlet side of the adhesive applicator assembly for detecting adhesive applicator position information; an adhesive cutting assembly located on the adhesive tape inlet side of the adhesive applicator assembly, the adhesive cutting assembly including a die, a first drive member, and a cutting back roller cooperating with the die, the first drive member driving the die to move closer to the cutting back roller; and a deviation correction assembly for adjusting the position of the adhesive tape; wherein, when the vision detection unit detects a deviation in adhesive applicator application, the adhesive cutting assembly cuts the adhesive tape, and the deviation correction assembly corrects the deviation of the adhesive tape.

[0007] Furthermore, it also includes a feed roll and at least one take-up roll, the feed roll being used to output the tape and the take-up roll being used to receive the peeled release layer.

[0008] Furthermore, the feed roll and at least one take-up roll are mounted on the web guiding assembly, which is used to adjust the positions of the feed roll and the take-up roll.

[0009] Furthermore, the tape includes an adhesive paper layer and at least one release layer, and there is a preset gap between the cutting blade and the surface of the cutting blade back roller. The preset gap is not greater than the thickness of the release layer and the height of the preset gap is not zero.

[0010] Furthermore, the correction assembly includes a first correction device; the feed roll is connected to the first correction device, and the first correction device is used to drive the feed roll to move along the width direction of the tape to adjust the position of the tape.

[0011] Furthermore, it also includes at least one fourth drive unit, which is used to adjust the output speed or take-up speed of the feed roll and take-up roll.

[0012] Furthermore, the tape cutting assembly also includes a second driving component, which drives the die to rotate, and the rotation of the die causes the cutting blade to cut the tape.

[0013] Furthermore, the adhesive application assembly includes an upper pressure roller and a lower pressure roller arranged opposite to each other. The current collector and the adhesive tape pass through the position between the upper pressure roller and the lower pressure roller. At least one of the upper pressure roller and the lower pressure roller is connected to a third driving member. The third driving member is used to drive the upper pressure roller and the lower pressure roller to move closer to each other so that the current collector and the adhesive tape are bonded together.

[0014] An adhesive applicator includes the aforementioned adhesive applicator, and further includes: an unwinding mechanism for releasing the current collector to be applied; and a winding mechanism for collecting the current collector after adhesive application is completed; the adhesive material to be applied is released by the unwinding mechanism, applied by the adhesive applicator assembly, and then completely collected by the winding mechanism.

[0015] Furthermore, the correction assembly also includes a second correction device and a third correction device. The second correction device is connected to the unwinding mechanism, and the third correction device is connected to the winding mechanism. A first sensor is disposed between the unwinding mechanism and the adhesive application mechanism. A second sensor is disposed between the adhesive application mechanism and the winding mechanism. The first and second sensors are used to detect the position deviation of the current collector. When the position deviation is detected, the second and third correction devices correct the deviation of the current collector.

[0016] The beneficial effects of this utility model are:

[0017] This invention discloses an adhesive application mechanism that, by incorporating a vision inspection unit on the discharge side of the adhesive application assembly and a cutting assembly with a dual-drive structure on the feed side, forms a closed-loop control system of "detection-cutting-correction," enabling real-time monitoring and timely correction of the adhesive application position. Compared with existing technologies, this solution overcomes the limitation of traditional adhesive application processes that cannot be adjusted in real time. Through the separation of detection and execution, it ensures the accuracy of detection and the timeliness of correction. Adhesive application equipment, including this mechanism, significantly improves application accuracy and production efficiency, providing a reliable technical solution for achieving high-speed, high-precision automated adhesive application. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the adhesive cutting component and the adhesive tape of this utility model;

[0022] Figure 4 yes Figure 3 A frontal view diagram.

[0023] in,

[0024] 10. Adhesive application assembly; 11. Upper pressure roller; 12. Lower pressure roller; 13. Fourth drive component;

[0025] 20. Detection component; 21. Visual inspection unit;

[0026] 30. Glue cutting assembly; 31. Die-cutting die; 311. Cutting blade; 32. Cutting blade back roller;

[0027] 40. Feed roll; 41. First correction device;

[0028] 50. Receiving coils;

[0029] 60. Third driving component;

[0030] 70. Adhesive tape; 71. Adhesive paper layer; 72. Release layer;

[0031] 80. Unwinding mechanism; 81. Second web guiding device; 82. First sensor;

[0032] 90. Winding mechanism; 91. Third web guiding device; 92. Second sensor. Detailed Implementation

[0033] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0034] Reference Figure 1 An adhesive applicator includes an adhesive applicator 10, a detection component 20, an adhesive cutting component 30, and a deviation correction component.

[0035] The adhesive applicator 10, used to attach adhesive tape 70 to the current collector, includes an upper pressure roller 11 and a lower pressure roller 12 arranged opposite each other. The current collector and the adhesive tape 70 pass between the upper pressure roller 11 and the lower pressure roller 12, and the upper and lower pressure rollers 12 cooperate to bond the current collector and the adhesive tape 70 together. The detection assembly 20 includes a vision detection unit 21 located on the current collector outlet side of the adhesive applicator 10, used to detect the adhesive application position information. By detecting the current collector after adhesive application, it is determined whether the adhesive tape 70 has deviated. The tape cutting assembly 30 is located on the tape 70 feeding side of the adhesive applicator 10. The tape cutting assembly 30 includes a die 31, a first drive member, and a cutting back roller 32 that cooperates with the die 31. The first drive member is used to drive the die 31 closer to the cutting back roller 32. When the vision detection unit 21 detects that the adhesive application has deviated, the tape cutting assembly 30 cuts the adhesive tape 70. The correction assembly is used to adjust the position of the adhesive tape. It is understandable that after the tape 70 is cut by the tape cutting component 30, the tape 70 can be corrected in both the horizontal and vertical directions by the correction component, so as to achieve precise adjustment of the tape 70's attachment position.

[0036] In some embodiments, the die 31 is a straight die, which is driven by a first driving member to move toward the tape and cut the tape in conjunction with the back roller of the cutter.

[0037] In some embodiments, the first driving element (not shown) can be a cylinder, a ball screw, or a linear motor, or other actuator capable of reciprocating motion, used to drive the die 31 to move closer to or away from the cutter back roller 32. Cylinders are characterized by fast response and simple structure, making them suitable for high-frequency cutting applications; ball screws offer high positioning accuracy and smooth movement, making them suitable for applications requiring precise feed control; and linear motors offer high speed and good acceleration / deceleration performance, making them suitable for high-speed cutting applications. A suitable driving method can be selected based on actual production needs.

[0038] In some embodiments, refer to Figure 3 , 4 The die-cutting mold has a roller-shaped structure, and at least one cutting blade 311 is provided on the surface of the die-cutting mold 31. The cutting blade is arranged along the axial direction of the die-cutting mold. The adhesive cutting assembly also includes a second driving component, which is used to drive the die-cutting mold 31 to rotate. When the die-cutting mold 31 rotates, it drives the cutting blade 311 to cut the adhesive tape.

[0039] The second driving component (not shown in the figure) can be a servo motor, a frequency converter motor, a synchronous motor, a DD motor, etc. These motors all have the characteristics of adjustable speed and high control precision, which can accurately control the rotation speed of the die 31, ensure the accuracy of the cutting timing, and guarantee the cutting quality. Among them, the servo motor has the advantages of fast response speed and high positioning accuracy; the DD motor has the characteristics of simple structure and high transmission efficiency; and the frequency converter motor and the synchronous motor have the advantages of good stability and long service life.

[0040] The cutting blade 311 is a sealing type. It can be understood that the blade of the sealing type cutting blade 311 is closed, usually circular or polygonal, and is suitable for cutting holes of specific shapes on the tape 70, which can meet different cutting needs.

[0041] Reference Figure 3 , 4 The conveying tape 70 is cut by rotating the die 31. Specifically, when the tape 70 needs to be cut, the second drive unit drives the die 31 to rotate, while the first drive unit drives the die 31 to move closer to the cutter back roller 32. As the die 31 rotates, the cutting blade 311 and the cutter back roller 32 cooperate to cut the tape 70. The rotation speed of the die 31 can be adjusted by the second drive unit to match the conveying speed of the tape 70 and ensure the accuracy of the cut. The gap between the die 31 and the cutter back roller 32 can be precisely controlled by the first drive unit to ensure that only the adhesive layer 71 is cut without damaging the release layer 72, thus achieving precise cutting.

[0042] In some embodiments, refer to Figure 1 , 2It also includes a feed roll 40 and at least one take-up roll 50, the feed roll 40 being used to output the tape 70 and the take-up roll 50 being used to receive the peeled release layer 72.

[0043] In some embodiments, refer to Figure 3 The tape 70 includes an adhesive paper layer 71 and at least one release layer 72. A preset gap exists between the cutting blade 311 and the surface of the cutting blade back roller 32, and this preset gap is no greater than the thickness of the release layer 72. It is understood that the cutting die 31, in cooperation with the cutting blade back roller 32, only cuts the adhesive paper layer 71, while the release layer 72 is conveyed normally until the lamination point. At this point, the speed is adjusted by the upper pressure roller 11 or the lower pressure roller 12, which pulls the release paper to align the entire tape 70. Therefore, when the preset gap is no greater than the thickness of the release layer 72, the cutting blade 311 can maintain the integrity of the release layer 72 while cutting the adhesive paper layer 71, facilitating the adjustment of the tape 70 position using the traction force of the release layer 72. Furthermore, the intact release layer 72 facilitates subsequent collection and processing, improving production efficiency and reducing waste generation.

[0044] When the tape 70 has two layers, including an adhesive layer 71 and a release layer 72 at the bottom of the adhesive layer 71, the preset gap between the cutting blade 311 and the cutting blade back roller 32 is no greater than the thickness of the bottom release layer 72 and the height of the preset gap is not zero, ensuring that only the adhesive layer 71 is cut during cutting while keeping the bottom release layer 72 intact. Specifically, limiting protrusions are provided on both sides of the cutting blade back roller, and the thickness of the limiting protrusions matches the height of the preset gap. The release layer 72 is stored in the take-up roll 50 after the adhesive is applied. When the tape 70 has three layers, including release layers 72 located above and below the adhesive layer 71, two take-up rolls 50 are required. The release layer 72 on top of the adhesive layer 71 is peeled off before entering the cutting assembly 30 and stored in one of the take-up rolls 50. The bottom release layer 72 is stored in the other take-up roll 50 after the adhesive is applied. This effectively avoids interference from the upper release layer 72 with the cutting and adhesive application process, while also enabling the classified collection of the release layer 72 for easy subsequent recycling.

[0045] It should be noted that after the current collector is coated with adhesive, the vision detection unit 21 can detect the position of the adhesive relative to the current collector.

[0046] When the adhesive layer shifts left or right relative to the current collector, a first alignment device 41 connected to the feed roll 40 moves the feed roll 40 along the width of the tape 70 to adjust the position of the tape 70. In other words, when a left or right shift is detected, the tape cutting mechanism cuts the adhesive layer 71, and then the first alignment device 41 corrects the adhesive layer 71 in the width direction of the current collector.

[0047] The adhesive tape layer 71 in this case can be made into unit structures such as "mouth" shape, "day" shape, and "eye" shape according to process requirements. That is to say, by presetting the visual detection unit 21 to detect the distance between two adjacent unit structures of the adhesive tape layer 71, when the detected distance by the visual detection unit 21 changes, at this time, the adhesive tape layer 71 is offset forward and backward relative to the current collector. At this time, the glue cutting mechanism will cut the adhesive tape layer 71, and the feeding speed or the winding speed of the feeding roll 40 and the winding roll 50 is adjusted by the set third driving member 60, so that the speeds of the current collector and the adhesive tape layer 71 are matched at the composite position, and then the front and back alignment is completed.

[0048] Among them, the third driving member 60 can be one of a servo motor, a frequency conversion motor, a synchronous motor, and a DD motor.

[0049] It should be noted that the tape sticking assembly 10 is used to composite the current collector and the adhesive tape layer 71. Among the upper pressing roller 11 and the lower pressing roller 12, at least one is connected to a fourth driving member 13. The fourth driving member 13 is used to drive the upper pressing roller 11 and the lower pressing roller 12 to approach each other, so that the current collector and the tape 70 are composite together. In addition, in some specific embodiments, the upper pressing roller 11 is a traction roller for driving the conveyance of the current collector, and the lower pressing roller 12 is a glue pressing roller for cooperating with the traction roller to composite the adhesive tape layer 71 and the current collector.

[0050] In some embodiments, the visual detection unit 21 is a CCD camera. The accuracy of the CCD camera can reach within 0.01 mm. It uses a high-resolution image sensor and has high imaging quality and detection accuracy. That is to say, it can accurately detect the relative position deviation between the tape 70 and the current collector, including the lateral position deviation and the longitudinal position deviation, and provide accurate deviation data for the deviation correction system, so as to achieve precise adjustment of the sticking position of the tape 70. At the same time, the high-speed sampling characteristic of the CCD camera can also achieve real-time monitoring to ensure timely deviation correction during the production process.

[0051] This case also relates to a tape sticking device, referring to Figure 1 , including the above-mentioned tape sticking mechanism, and further including: a unwinding mechanism 80 for releasing the current collector to be stuck with tape; a winding mechanism 90 for collecting the current collector after the tape sticking is completed. It can be understood that the material to be stuck with tape is released by the unwinding mechanism, and after being stuck with tape by the tape sticking assembly, it is completely collected by the winding mechanism. In addition, it further includes a second deviation corrector 81 and a third deviation corrector 91. The second deviation corrector 81 is connected to the unwinding mechanism 80, and the third deviation corrector 91 is connected to the winding mechanism 90; a first sensor 82 is arranged between the unwinding mechanism 80 and the tape sticking mechanism; a second sensor 92 is arranged between the tape sticking mechanism and the winding mechanism 90;

[0052] The first sensor 82 and the second sensor 92 are used to detect the position deviation of the collector. When the position deviation is detected, the collector is corrected by the second correction device 81 and the third correction device 91.

[0053] Furthermore, the unwinding mechanism 80 includes an unwinding roller and an unwinding motor. The unwinding motor drives the unwinding roller to rotate to release the current collector. The speed of the unwinding motor is adjustable to match the feed speed of the adhesive application process. A second guide device 81 is installed at the discharge end of the unwinding mechanism 80 to adjust the conveying posture of the current collector, ensuring that the current collector can smoothly enter the adhesive application mechanism.

[0054] Furthermore, the winding mechanism 90 includes a winding roller and a winding motor. The winding motor drives the winding roller to rotate to collect the adhesive-coated collector. The winding motor has a tension control function, which can adjust the winding tension according to production needs. The third alignment device 91 is installed at the feed end of the winding mechanism 90 to perform final position correction on the adhesive-coated collector, ensuring that the collector can be neatly wound up.

[0055] Furthermore, the first sensor 82 and the second sensor 92 can be photoelectric sensors, laser sensors, or CCD cameras, etc., to monitor the position information of the current collector in real time. When a position deviation of the current collector is detected, the control system calculates the correction parameters based on the deviation and drives the corresponding correction device to adjust the position, thereby realizing full-process monitoring and correction of the current collector position.

[0056] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A taping mechanism, characterized by, The adhesive tape attaching mechanism comprises: an adhesive tape attaching assembly for attaching adhesive tape on a current collector; a detection assembly comprising a visual detection unit on the current collector discharge side of the adhesive tape attaching assembly, for detecting adhesive tape attaching position information; an adhesive tape cutting assembly on the adhesive tape feeding side of the adhesive tape attaching assembly, the adhesive tape cutting assembly comprising a cutter die, a first driving member, and a cutter back roller matched with the cutter die, the first driving member being used to drive the cutter die to approach or move away from the cutter back roller; a deviation rectifying assembly for adjusting the position of the adhesive tape; wherein when the visual detection unit detects that the adhesive tape attaching deviates, the adhesive tape cutting assembly cuts the adhesive tape, and the deviation rectifying assembly rectifies the adhesive tape.

2. The taping mechanism of claim 1, wherein, The adhesive tape attaching mechanism further comprises a feeding roll and at least one collecting roll, the feeding roll being used to output adhesive tape, and the collecting roll being used to store the released release layer.

3. The gluing mechanism according to claim 2, wherein The feeding roll and the at least one collecting roll are installed on the deviation rectifying assembly, and the position of the feeding roll and the collecting roll is adjusted by the deviation rectifying assembly.

4. The gluing mechanism according to claim 2, wherein The adhesive tape comprises a paper layer and at least one release layer, the cutter die is in a roller structure, at least one cutting knife is arranged on the surface of the cutter die, the cutting knife is arranged along the axial direction of the cutter die, and the cutting knife and the surface of the cutter back roller have a preset gap, the preset gap is not greater than the thickness of the release layer, and the height of the preset gap is not zero.

5. The adhesive tape attaching mechanism according to claim 4, wherein the deviation rectifying assembly comprises a first deviation rectifier; the feeding roll is connected with the first deviation rectifier, and the first deviation rectifier is used to drive the feeding roll to move along the width direction of the adhesive tape, so as to adjust the position of the adhesive tape.

6. The adhesive tape attaching mechanism according to claim 2, wherein the adhesive tape attaching mechanism further comprises at least one fourth driving member, and the fourth driving member is used to adjust the feeding speed or the collecting speed of the feeding roll and the collecting roll.

7. The adhesive tape attaching mechanism according to claim 4, wherein the adhesive tape cutting assembly further comprises a second driving member, and the second driving member is used to drive the cutter die to rotate, so that the cutting knife cuts the adhesive tape.

8. The adhesive tape attaching mechanism according to claim 1, wherein the adhesive tape attaching assembly comprises an upper pressing roller and a lower pressing roller arranged oppositely, the current collector and the adhesive tape pass between the upper pressing roller and the lower pressing roller, at least one of the upper pressing roller and the lower pressing roller is connected with a third driving member, and the third driving member is used to drive the upper pressing roller and the lower pressing roller to approach each other, so that the current collector and the adhesive tape are compounded together.

9. A taping apparatus, characterized by The adhesive tape attaching mechanism comprises any one of claims 1-8, and further comprises: an unwinding mechanism for releasing a current collector to be attached with adhesive tape; a winding mechanism for collecting a current collector after adhesive tape attaching; the material to be attached with adhesive tape is released by the unwinding mechanism, and after adhesive tape attaching by the adhesive tape attaching assembly, the material is completely collected by the winding mechanism.

10. The taping apparatus of claim 9, wherein, The adhesive tape attaching mechanism further comprises: the deviation rectifying assembly further comprises a second deviation rectifier and a third deviation rectifier, the second deviation rectifier is connected with the unwinding mechanism, and the third deviation rectifier is connected with the winding mechanism; a first sensor is arranged between the unwinding mechanism and the adhesive tape attaching assembly; a second sensor is arranged between the adhesive tape attaching assembly and the winding mechanism. The first sensor and the second sensor are configured to detect a position deviation of the current collector, and when the position deviation is detected, the second deviation corrector and the third deviation corrector are configured to correct the deviation of the current collector. The first sensor and the second sensor are configured to detect a position deviation of the current collector, and when the position deviation is detected, the second deviation corrector and the third deviation corrector are configured to correct the deviation of the current collector. The first sensor and the second sensor are configured to detect a position deviation of the

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