Double-sided gluing device

Abstract

The present invention relates to a double-sided gluing device. The double-sided gluing device of the present invention comprises: a transmission mechanism, a gluing mechanism and a correction mechanism; the transmission mechanism drives the transmission of the pole piece and the tape; the gluing mechanism comprises an unwinding module, a rewinding module and a gluing module, the unwinding module provides the tape, the rewinding module recycles the tape waste, and the gluing module bonds the pole piece and the tape; the correction mechanism comprises a gluing correction module, an unwinding correction module, a rewinding correction module and an overall correction module, the gluing correction module detects and corrects the gluing of the pole piece, the unwinding correction module detects and corrects the release of the tape, the rewinding correction module detects and corrects the recovery of the tape waste, and the overall correction module detects and corrects the incoming material of the pole piece. The double-sided gluing device of the present invention improves the correction accuracy of the device by setting a plurality of correction modules to work together, and thereby realizes that one device completes the gluing of the front and back sides of the pole piece, effectively improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the field of battery manufacturing, and in particular to a double-sided glue sticking device. Background Art

[0002] Modern society is highly dependent on electricity, and batteries that can provide electricity are a hot area of ​​current research. Whether it is a breakthrough in battery technology or an improvement in battery manufacturing technology, it can bring benefits to people. Currently, the commonly used batteries are mainly dry batteries, lead-acid batteries and lithium batteries. Among them, lithium batteries are widely used in various scenarios due to their advantages such as high specific energy, long life and light weight, such as mobile devices and electric vehicles.

[0003] Lithium batteries mainly include positive electrodes, negative electrodes and electrolytes. The composition of positive and negative electrodes and electrolytes varies according to different types, but the manufacturing processes are similar, mainly including: stirring and slurrying, coating, rolling, slitting, sheeting, die-cutting, winding, shelling, welding, drying, liquid injection, cleaning, post-processing and other processes. In these manufacturing processes, it is sometimes necessary to stick tape on the pole piece to be processed. For example, the coating process is to coat the stirred positive and negative electrode slurry on the pole piece to prepare the positive and negative electrodes. When coating, the slurry needs to be coated in the middle of the pole piece, leaving space on the left and right sides for welding the pole ears, etc. Therefore, generally, glue will be applied to the pole piece to cover the left and right sides before coating. The existing device for gluing pole pieces can only glue the front and back sides of one side of the pole piece at a time. To glue the front and back sides of both sides of the pole piece, it needs to be done twice respectively. After completing the gluing on one side, the pole piece is regularized and re-placed in the gluing device for gluing on the other side, and the production efficiency is low. Summary of the invention

[0004] Usually, the pole piece and the tape are corrected during the gluing process, and the commonly used correction method in the prior art is mechanical correction, which limits the position of the pole piece and the tape by setting limit grooves in the transmission path of the pole piece and the tape to achieve the correction purpose. However, this correction method is relatively simple and crude, and the effect is average. Since force is applied to the sides of the pole piece and the tape during the mechanical limiting process, it is easy to cause the pole piece and the tape to deform, and it will fail when the offset is large. Therefore, it is difficult to achieve double-sided gluing of the pole piece in the prior art.

[0005] Based on this, an object of the present invention is to provide a double-sided gluing device.

[0006] A double-sided glue sticking device, comprising a back plate, a mounting plate, a transmission mechanism and a glue sticking mechanism; the mounting plate is mounted on the back plate; the transmission mechanism is mounted on the mounting plate, and is used to drive the material to move; the glue sticking mechanism is mounted on the mounting plate, and is used to provide adhesive tape and stick the adhesive tape on the front and back sides of the inner and outer sides of the material, and also includes a deviation correction mechanism, which includes

[0007] A glue correction module, the glue correction module comprises a glue sensor and a glue correction roller, the glue sensor is mounted on a mounting plate and faces the material to detect the glue condition of the material; the glue correction roller comprises a roller body and a driving member, the roller body is in driving connection with the driving member, the glue correction roller is mounted on a mounting plate of the belt conveying path, so that the belt passes through the roller body, and the driving member drives the roller body to change its position relative to the mounting plate to adjust the position of the belt;

[0008] The overall deflection correction module includes a material sensor, a deflection correction base and a deflection correction drive; the material sensor detects the posture of the material; the deflection correction base is installed on the back plate; the deflection correction drive is installed on the deflection correction base and is driven to be connected to the mounting plate, driving the mounting plate to move to change its position relative to the back plate.

[0009] The double-sided glue sticking device of the present invention has the following beneficial effects compared with the prior art:

[0010] (1) By setting up a glue correction module, using a glue sensor to detect the glue condition of the material in real time, and then adjusting the glue correction roller according to the glue condition, the tape wrapped around the roller body changes position under the drive of the roller body to align the material and achieve correction. Different from the mechanical limit in the prior art, the present invention drives the tape to move through the roller body, and the force applied to the tape itself is small, which will not cause deformation of the tape. In addition, compared with the mechanical limit, the movement of the roller body can match a larger offset, with a wider correction range and stronger correction ability.

[0011] (2) By setting up an integral deflection correction module and using a deflection correction drive to drive the mounting plate to move, the pole piece can be kept stationary while the device as a whole moves to align the pole piece. Compared with the prior art device for adjusting the pole piece to align the pole piece, the present invention achieves pole piece deflection correction without affecting the pole piece, avoids the problem of possible deformation of the pole piece, and protects the pole piece while achieving deflection correction.

[0012] Furthermore, the glue applying mechanism includes an unwinding module, which includes an unwinding base, an unwinding disk, an unwinding drive and an unwinding linear bearing; the unwinding disk is installed on the unwinding base through a connecting piece; the unwinding drive is also installed on the unwinding base, and the unwinding drive is connected to the unwinding disk driving; the base of the unwinding linear bearing is fixedly connected to the unwinding base, and the guide shaft is clamped on the mounting plate.

[0013] Furthermore, the glue application mechanism also includes a winding module, which includes a winding base, a winding disk, a winding drive and a winding linear bearing; the winding disk is installed on the winding base through a connecting member; the winding drive is also installed on the winding base, and the winding drive is connected to the central axis driving connection of the winding disk; the base of the winding linear bearing is fixedly connected to the winding base, and the guide shaft is clamped on the mounting plate.

[0014] Furthermore, the gluing mechanism also includes a gluing module, the gluing module includes a pre-pressing roller, and the pre-pressing roller includes two pressing rollers, the pressing rollers are close to each other, and a gap is left in the middle for the material to pass through.

[0015] Furthermore, the glue laminating module also includes a hot roller. The material enters the hot roller after passing through the pre-pressing roller. The hot roller includes two hot pressing rollers and a heater. The hot pressing rollers are close to each other, leaving a gap in the middle for the material to pass through. The heater heats the hot pressing rollers.

[0016] Furthermore, the correction mechanism also includes an unwinding correction module, which includes an unwinding correction sensor, an unwinding correction base and an unwinding correction drive; the unwinding correction sensor detects the posture of the tape in the unwinding disk, the unwinding correction base is installed next to the unwinding disk, and the unwinding correction drive is installed on the unwinding correction base and drives the unwinding disk.

[0017] Furthermore, the unwinding correction module also includes an unwinding correction slider, the unwinding correction drive component is a ball screw motor, the unwinding correction slider is fixedly connected to the unwinding base, and is passed through the screw of the unwinding correction drive component.

[0018] Furthermore, the correction mechanism also includes a winding correction module, which includes a winding correction sensor, a winding correction base and a winding correction drive; the winding correction sensor detects the posture of the waste tape in the winding reel, the winding correction base is installed next to the winding reel, and the winding correction drive is installed on the winding correction base and drives the winding reel.

[0019] Furthermore, the winding correction module also includes a winding correction slider, the winding correction drive component is a ball screw motor, the winding correction slider is fixedly connected to the winding base, and is passed through the screw of the winding correction drive component.

[0020] Furthermore, the overall correction module also includes an overall correction slider, the correction drive component is a ball screw motor, the overall correction slider is fixedly connected to the mounting plate, and is passed through the screw of the correction drive component.

[0021] Furthermore, the transmission mechanism also includes an unwinding swing roller, which includes a swing roller, a swing arm, a bearing seat and a swing roller driving component; the swing roller is fixedly connected to the swing arm; the swing arm is fixedly connected to the bearing seat; and the bearing seat is drivingly connected to the swing roller driving component.

[0022] Furthermore, the transmission mechanism also includes a tension sensor, and the transmission mechanism also includes a tension sensor. The tension sensor is installed on the path of tape transmission, and the tape tension can be detected when the tape passes through the tension sensor; matching this, the unwinding swing roller also includes a sensor sheet and a sensor, the sensor sheet is installed on the unwinding swing roller, and moves with the rotation of the swing roller, and the sensor is installed at a limit position.

[0023] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the upper part of the present invention;

[0026] Figure 3 It is a schematic diagram of the lower part of the present invention;

[0027] Figure 4 This is a front view of the unwinding module of the present invention;

[0028] Figure 5 This is a schematic diagram of the back side of the unwinding module of the present invention;

[0029] Figure 6 This is a front schematic diagram of the winding module of the present invention;

[0030] Figure 7 This is a top view schematic diagram of the winding module of the present invention;

[0031] Figure 8 This is a schematic diagram of the glue sticking module of the present invention;

[0032] Fig. 9 for Figure 1 A is an enlarged schematic diagram of part A;

[0033] Fig.10 It is a schematic diagram of the pressing roller of the present invention;

[0034] Fig.11 This is a schematic diagram of the unwinding swing roller of the present invention;

[0035] Fig.12 for Figure 1 Part B is an enlarged schematic diagram;

[0036] Fig.13This is a schematic diagram of the glue-applying and deflection-correcting roller of the present invention;

[0037] Fig.14 It is a schematic diagram of the overall deviation-correcting assembly of the present invention. DETAILED DESCRIPTION

[0038] A double-sided glue sticking device comprises a glue sticking mechanism, a transmission mechanism and a deviation correction mechanism. The glue sticking mechanism presses the pole piece and the tape, the transmission mechanism conveys the tape and the pole piece, and the deviation correction mechanism detects the posture of the pole piece and the tape in real time and adjusts the device to align the pole piece and the tape to ensure glue sticking accuracy.

[0039] See also Figure 1-3 The double-sided adhesive device is provided with a back plate 100 and a mounting plate. The back plate 100 provides support for the overall components. The mounting plate includes a first mounting plate 110, a second mounting plate 120 and a third mounting plate 130, which are sequentially mounted on the back plate 100 and can be moved forward and backward from top to bottom, so that the position of the components mounted on the mounting plate can be changed by moving the mounting plate.

[0040] See also Figure 4-8 The glue sticking mechanism includes an unwinding module 210, a winding module 220 and a glue sticking module 230. The unwinding module 210 includes an unwinding base 211, an unwinding disk 212, an unwinding motor 213 and an unwinding linear bearing 214. The back of the unwinding disk 212 is connected to the unwinding base 211 through a connecting piece, and the unwinding motor 213 is installed at the bottom of the unwinding base 211. The end of the output shaft of the unwinding motor 213 is aligned with the end of the central axis extending from the center of the unwinding disk 212, and the output shaft of the unwinding motor 213 and the central axis of the unwinding disk 212 are driven and connected by a synchronous belt. Preferably, a tensioning wheel is arranged between the driving shaft of the unwinding motor 213 and the central axis of the unwinding disk 212, and the tensioning wheel is not on the same straight line as the driving shaft and the central axis. The synchronous belt is wound around the tensioning wheel to maintain tension to prevent the synchronous belt from slipping, so that the power of the driving shaft of the unwinding motor 213 can be completely transmitted to the central axis of the unwinding disk 212. The unwinding linear bearing 214 has two parts respectively installed on the left and right sides of the top of the unwinding base 211 . The guide shaft of the unwinding linear bearing 214 is clamped on the mounting plate. The distance between the unwinding module 210 and the mounting plate can be changed by adjusting the unwinding linear bearing 214 .

[0041] The winding module 220 includes a winding base 221, a winding disk 222, a winding motor 223 and a winding linear bearing 224. The back of the winding disk 222 is connected to the winding base 221 through a connecting piece, and the winding motor 223 is installed at the bottom of the winding base 221. The end of the output shaft of the winding motor 223 is aligned with the end of the central shaft extending from the center of the winding disk 222, and the output shaft of the winding motor 223 and the central shaft of the winding disk 222 are driven and connected by a synchronous belt. Preferably, a tensioning wheel is arranged between the driving shaft of the winding motor 223 and the central shaft of the winding disk 222, and the tensioning wheel, the driving shaft and the central shaft are not on the same straight line. The synchronous belt is wound around the tensioning wheel to maintain tension to prevent the synchronous belt from slipping, so that the power of the driving shaft of the winding motor 223 can be completely transmitted to the central shaft of the winding disk 222. The winding linear bearing 224 is installed on the top of the winding base 221, and the guide shaft of the winding linear bearing 224 is clamped on the mounting plate. The distance between the winding module 220 and the mounting plate is changed by adjusting the winding linear bearing 224.

[0042] The glue sticking module 230 includes a pre-pressing roller 231 and a hot roller 232. The pre-pressing roller 231 includes two upper and lower pressing rollers, which are driven by cylinders, connecting rods, etc. to adjust the gap between the pressing rollers, so that the electrode piece is in close contact with the upper and lower pressing rollers when passing through the gap, and the tape is attached to the electrode piece. The structure of the hot roller 232 is similar to that of the pre-pressing roller, and is also provided with two upper and lower pressing rollers, and can be driven by cylinders, connecting rods, etc. The difference is that the hot roller 232 has a heating function, which can heat the upper and lower pressing rollers to a suitable temperature, so that the tape glue passing through the hot roller 232 is properly melted so as to better fit on the electrode piece. Preferably, a hot roller protective cover is installed on the outside of the hot roller 232, covering the heating area of ​​the hot roller 232, to prevent people from accidentally contacting the hot roller 232 and being injured. The pole piece and the tape are driven by the transmission mechanism into the gluing module. The tape is first initially bonded to the designated position of the pole piece by the pre-pressing roller, and then fully bonded by the hot roller. After the pole piece is glued, it is transported away by the transmission mechanism.

[0043] See also Figure 1 and 2. In this embodiment, in order to achieve double-sided gluing, the unwinding modules 210 are provided with four, namely, the first unwinding module 210a, the second unwinding module 210b, the third unwinding module 210c and the fourth unwinding module 210d. The first unwinding module 210a is installed above the first mounting plate 110, the second unwinding module 210b is installed at the lower right of the second mounting plate 120, the third unwinding module 210c is installed above the third mounting plate 130, and the fourth unwinding module 210d is installed at the lower right of the third mounting plate 130. Matching therewith, the winding modules 220 are also provided with four, namely, the first winding module 220a, the second winding module 220b, the third winding module 220c and the fourth winding module 220d. The first winding module 220a is mounted on the first mounting plate 110 and is located at the lower right of the first unwinding module 210a, the second winding module 220b is mounted on the second mounting plate 120 and is located at the upper left of the second unwinding module 210b, the third winding module 220c is mounted on the third mounting plate 130 and is located at the lower right of the third unwinding module 210c, and the fourth winding module 220d is mounted on the third mounting plate 130 and is located at the upper left of the fourth unwinding module 210d. Similarly, the glue sticking module 230 is provided with two, namely the first glue sticking module 230a and the second glue sticking module 230b, the first glue sticking module 230a is mounted on the back plate 100 and is located at the left side of the first mounting plate 110 and the second mounting plate 120, and the second glue sticking module 230b is also mounted on the back plate 100 and is located at the left side of the third mounting plate 130. The first unwinding module 210a provides the tape on the upper surface of the outer side of the pole piece, the second unwinding module 210b provides the tape on the lower surface of the outer side of the pole piece, and the first gluing module 230a completes the tape bonding of the upper and lower surfaces of the outer side of the pole piece; the third unwinding module 210c provides the tape on the upper surface of the inner side of the pole piece, the fourth unwinding module 210d provides the tape on the lower surface of the inner side of the pole piece, and the second gluing module 230b completes the tape bonding of the upper and lower surfaces of the inner side of the pole piece. The winding module 220 collects the waste tape of the corresponding unwinding module 210, that is, the first winding module 220a collects the waste tape of the first unwinding module 210a, and so on.

[0044] See also Fig. 9 and 10. The transmission mechanism includes a plurality of transmission rollers 310, a plurality of unwinding active rollers 320, a plurality of unwinding driven rollers 330 and a plurality of winding rollers 340. The plurality of transmission rollers 310 are installed on the back plate 100 along the direction of the pole piece. There is no special requirement for the number and position of the transmission rollers 310, and it is only necessary to provide sufficient support for the pole piece. The plurality of unwinding active rollers 320 are installed on the back plate 100 along the direction of the tape. Each unwinding active roller 320 is individually connected to a servo motor drive. The speed of the unwinding active roller 320 is controlled by adjusting the speed of the servo motor to adjust the speed of the tape conveying. Preferably, a pressure roller 350 is also included. The pressure roller 350 is installed on one side of the unwinding active roller 320 and is connected to a pressure roller cylinder 360. The pressure roller cylinder 360 is adjusted to make the pressure roller 350 fit the unwinding active roller 320, so that the tape is close to the unwinding active roller 320 when passing through the unwinding active roller 320 to avoid slipping. The plurality of unwinding driven rollers 330 are installed on the back plate 100 along the direction of the tape to provide auxiliary support for the tape. The plurality of winding rollers 340 are installed on the back plate 100 along the direction of the tape waste to provide auxiliary support for the tape waste.

[0045] See also Fig.11 . Preferably, the transmission mechanism further includes an unwinding swing roller 370, and a plurality of the unwinding swing rollers 370 are installed on the back plate 100 along the direction of the tape. The unwinding swing roller 370 includes a swing roller 371, a swing arm 372, a bearing seat 373 and a swing roller motor 374. The swing roller 371 is fixedly connected to one end of the swing arm 372, and the back of the other end of the swing arm 372 is fixedly connected to one end of the bearing seat 373, and the other end of the bearing seat 373 is connected to the drive shaft of the swing roller motor 374 through a synchronous belt drive. The swing roller motor 374 is controlled to drive the swing roller 371 to swing around the bearing seat 373, and the position of the swing roller 371 is changed to adjust the tightness of the tape. More preferably, a tension sensor 380 is also included installed on the tape conveying path, and the tension sensor 380 detects the tension of the tape and feeds back information to the swing roller motor 374, so as to automatically adjust the tightness of the tape through a preset program. To match it, the bearing seat 373 is connected to the driving shaft of the swing roller motor 374 at one end with a sensing plate 375 fixedly connected, and a limit sensor is installed at the extreme position according to actual conditions. When the swing roller 371 swings, the sensing plate 375 swings with it. When it swings to the extreme position, the limit sensor is triggered to force the swing roller motor 374 to stop working, thereby preventing the swing roller 371 from exceeding the limit and interfering with the operation of other devices.

[0046] The correction mechanism includes an unwinding correction module, a rewinding correction module, a gluing correction module and an overall correction module. Figure 4 and 5. The unwinding correction module includes an unwinding correction sensor 411, an unwinding correction base 412, an unwinding correction motor 413 and an unwinding correction slider 414. The unwinding correction sensor 411 is installed on both sides of the unwinding disk; the unwinding correction base 412 is arranged on one side of the unwinding disk and is fixedly connected to the unwinding base 211, and slide grooves are arranged on the left and right sides of the unwinding correction base 412; the unwinding correction motor 413 is a ball screw motor, which is installed on the unwinding correction base 412; the unwinding correction slider 414 is fixedly connected to the unwinding base 211, and a through hole is opened in the center of the unwinding correction slider 414 for passing through the ball screw of the unwinding correction motor 413, and pulleys are installed on both sides of the unwinding correction slider 414 to slide in connection with the slide groove of the unwinding correction base 412. The unwinding correction sensor 411 detects the posture information of the tape in the unwinding reel. If the tape deviates, the unwinding correction motor 413 is controlled to drive the unwinding correction slider 414 to slide, and the unwinding base 211 fixed to the unwinding correction slider 414 moves accordingly, thereby changing the position of the unwinding reel to make the tape in the right position. In this embodiment, four unwinding correction modules are provided, which are respectively installed next to the first unwinding module 210a, the second unwinding module 210b, the third unwinding module 210c and the fourth unwinding module 210d.

[0047] See also Figure 6 and 7 . The winding correction module includes a winding correction sensor 421, a winding correction base 422, a winding correction motor 423 and a winding correction slider 424. The winding correction sensor 421 is installed on the winding base 221 and faces the winding disk 222; the winding correction base 422 is arranged on one side of the winding disk 222 and is fixedly connected to the winding base 221, and slide grooves are arranged on the left and right sides of the winding correction base 422; the winding correction motor 423 is a ball screw motor, which is installed on the winding correction base 422; the winding correction slider 424 is fixedly connected to the winding base 221, and a through hole is opened in the center of the winding correction slider 424 for passing through the ball screw of the winding correction motor 423, and pulleys are installed on both sides of the winding correction slider 424 to be slidably connected to the slide grooves of the winding correction base 422. The winding correction sensor 421 detects the posture information of the waste tape in the winding reel. If the waste tape deviates, the winding correction motor 423 is controlled to drive the winding correction slider 424 to slide, and the winding base 221 fixed to the winding correction slider 424 moves accordingly, thereby changing the position of the winding reel to make the waste tape in the right position. In this embodiment, four winding correction modules are provided, which are respectively installed next to the first winding module 220a, the second winding module 220b, the third winding module 220c and the fourth winding module 220d.

[0048] See also Fig.12 and13 . The glue correction module includes a glue sensor 431 and a glue correction roller 432. The glue sensor 431 includes a CCD camera 4311, an adjustment base 4312 and a detection roller 4313. The CCD camera 4311 is connected to the adjustment base 4312. Adjusting the adjustment base 4312 can change the position of the CCD camera 4311 so that the CCD camera 4311 is aligned with the pole piece; the adjustment base 4312 is mounted on the mounting plate; the detection roller 4313 is mounted opposite to the CCD camera 4311. When the pole piece passes through the glue sensor 431, one side is close to the detection roller 4313 and the other side faces the CCD camera 4311. The detection roller 4313 provides support and contrast background for the pole piece. The CCD camera 4311 takes a picture to obtain the pole piece image, and the glue situation is judged by comparing the relative positions of the pole piece, the tape and the detection roller 4313 in the image. The glue correction roller 432 includes a roller body 4321 and a ball screw motor 4322. The roller body 4321 is slidably connected to the screw of the ball screw motor 4322 through a connecting piece, and the motor drives the roller body 4321 to move along the screw. The glue sensor 431 detects the glue sticking of the pole piece. When the glue sticking is offset, the glue correction roller 432 is controlled to move and adjust the position of the tape so that the tape is accurately attached to the correct position of the pole piece again.

[0049] See also Figure 2 and 3. In this embodiment, four glue sensors 431 are provided, namely, the first glue sensor 431a, the second glue sensor 431b, the third glue sensor 431c and the fourth glue sensor 431d. The first glue sensor 431a is installed at the discharge port of the first glue module 230a, and the CCD camera faces the upper surface of the pole piece; the second glue sensor 431b is also installed at the discharge port of the first glue module 230a, and the CCD camera faces the lower surface of the pole piece; the third glue sensor 431c is installed at the discharge port of the second glue module 230b, and the CCD camera faces the upper surface of the pole piece; the fourth glue sensor 431d is also installed at the discharge port of the second glue module 230b, and the CCD camera faces the lower surface of the pole piece. There are four glue-applying deflection-correcting rollers 432 , namely a first glue-applying deflection-correcting roller 432 a , a second glue-applying deflection-correcting roller 432 b , a third glue-applying deflection-correcting roller 432 c and a fourth glue-applying deflection-correcting roller 432 d . The first glue deflection correction roller 432a is installed at the upper right of the first glue laminating module 230a, and the tape conveyed by the first unwinding module 210a passes through the first glue deflection correction roller 432a before entering the first glue laminating module 230a; the second glue deflection correction roller 432b is installed at the lower right of the first glue laminating module 230a, and the tape conveyed by the second unwinding module 210b passes through the second glue deflection correction roller 432b before entering the first glue laminating module 230a; the third glue deflection correction roller 432c is installed at the upper right of the second glue laminating module 230b, and the tape conveyed by the third unwinding module 210c passes through the third glue deflection correction roller 432c before entering the second glue laminating module 230b; the fourth glue deflection correction roller 432d is installed at the lower right of the second glue laminating module 230b, and the tape conveyed by the fourth unwinding module 210d passes through the fourth glue deflection correction roller 432d before entering the second glue laminating module 230b.

[0050] See also Figure 2 , 3and 14. The overall deflection correction module includes a pole piece sensor 441 and an overall deflection correction component 442. The overall deflection correction component 442 includes a fixed base 4421, a deflection correction motor 4422 and a deflection correction slider 4423. The fixed base 4421 is fixedly connected to the back plate 100, and slide grooves are installed on the left and right sides; the deflection correction motor 4422 is a ball screw motor, which is installed on the upper surface of the fixed base 4221; the deflection correction slider 4423 is provided with a through hole in the middle and is inserted into the screw of the deflection correction motor 4422, and the left and right sides of the deflection correction slider 4423 are installed on pulleys, which are respectively embedded in the slide grooves of the fixed base 4421 and slidably connected, and the deflection correction slider 4423 is fixedly connected to the mounting plate. The correction motor 4422 drives the correction slider 4423 to move along the direction of the screw rod, driving the mounting plate fixed to the correction slider 4423 to move together, so that the components installed on the mounting plate move as a whole, thereby making the pole piece stationary while the device moves to achieve overall alignment of the device with the pole piece.

[0051] In this embodiment, the pole piece sensors 441 are provided with two, namely, the first pole piece sensor 441a and the second pole piece sensor 441b. The first pole piece sensor 441a is installed on the path before the pole piece reaches the first glue module 230a, and the second pole piece sensor 441b is installed on the path before the pole piece reaches the second glue module 230b. The appropriate installation position can be selected according to the actual space. The overall correction component 442 is provided with three, namely, the first overall correction component 442a, the second overall correction component 442b and the third overall correction component 442c. The first overall correction component 442a is installed above the first mounting plate 110, the second overall correction component 442b is installed below the second mounting plate 120, and the third overall correction component 442c is installed below the third mounting plate 130.

[0052] The working process of the double-sided gluing device of the present invention is as follows:

[0053] (1) The electrode is placed at the feed port of the device, and the transmission roller 310 transports the electrode to the first glue laminating module 230a;

[0054] (2) During the process, the pole piece passes through the first pole piece sensor 441a, which detects the pole piece posture to determine whether correction is required. If correction is required, the first mounting plate 110 is driven by the first integral correction component 442a or the second mounting plate 120 is driven by the second integral correction component 442b;

[0055] (3) The first unwinding module 210a and the second unwinding module 210b transport the tape and the tape arrives at the first gluing module 230a together with the pole piece. At the same time, the unwinding correction module detects and corrects the posture of the tape;

[0056] (4) The tape and the electrode sheet arrive at the first gluing module 230a, and are glued to the outer side of the electrode sheet after passing through the pre-pressing roller and the hot roller;

[0057] (5) The first winding module 220a and the second winding module 220b recover the waste tape, and at the same time, the winding correction module detects and corrects the posture of the waste tape;

[0058] (6) After the pole piece is glued by the first glue sticking module, it leaves through the transmission roller 310 and passes through the first glue sticking sensor 431a and the second glue sticking sensor 431b on the way. The CCD camera takes pictures to analyze the glue sticking conditions on the upper and lower surfaces of the outer side of the pole piece. If correction is required, the glue correction roller 432 is controlled to adjust the position of the tape.

[0059] (7) The pole piece is transported to the second gluing module 230b via the transmission roller 310. On the way, the pole piece passes through the second pole piece sensor 441b to detect the posture of the pole piece to determine whether correction is required. If correction is required, the third mounting plate 130 is driven to move through the third overall correction component 442c;

[0060] (8) The third unwinding module 210c and the fourth unwinding module 210d convey the tape and the tape arrives at the second gluing module 230b together with the pole piece. Meanwhile, the unwinding correction module detects and corrects the posture of the tape.

[0061] (9) The tape and the electrode arrive at the second gluing module 230b, and pass through the pre-pressing roller and the hot roller to complete the inner side gluing;

[0062] (10) The third winding module 220c and the fourth winding module 220d recycle the waste tape, while the winding correction module detects and corrects the posture of the waste tape;

[0063] (11) After the pole piece is glued by the second glue laminating module 230b, it is transported away from the double-sided glue laminating device by the transmission roller 310, passing through the third glue laminating sensor 431c and the fourth glue laminating sensor 431d on the way. The CCD camera takes pictures to analyze the glue laminating conditions on the upper and lower surfaces inside the pole piece. If correction is required, the glue correction roller is controlled to adjust the position of the tape.

[0064] Compared with the prior art, the double-sided gluing device of the present invention is provided with a plurality of correction modules, including a gluing correction module, an unwinding correction module, a rewinding correction module and an overall correction module. In particular, the gluing correction module detects the gluing condition of the pole piece in real time, and adjusts the position of the tape in real time to align the tape with the pole piece. In addition, the detection sensor uses a CCD camera, and the recognition accuracy combined with image recognition technology is higher than that of conventional infrared detection methods, and higher-precision correction can be achieved. Through the mutual cooperation of a plurality of correction modules, the correction accuracy of the present invention far exceeds the prior art, and the gluing accuracy of the device is effectively improved, so that the gluing of the front and back sides of the pole piece can be completed in one device.

[0065] The above-mentioned embodiments only express the preferred implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and the present invention is also intended to include these modifications and modifications.

Claims

1. A double-sided gluing device, comprising a back plate, a mounting plate, a transmission mechanism and a gluing mechanism; the mounting plate is mounted on the back plate; the transmission mechanism is mounted on the mounting plate to drive the material to move; the gluing mechanism is mounted on the mounting plate to provide adhesive tape and stick the adhesive tape on the front and back sides of the inner and outer sides of the material, characterized in that: It also includes a deviation correction mechanism, the deviation correction mechanism includes A glue correction module, the glue correction module comprises a glue sensor and a glue correction roller, the glue sensor is mounted on a mounting plate and faces the material to detect the glue condition of the material; the glue correction roller comprises a roller body and a driving member, the roller body is in driving connection with the driving member, the glue correction roller is mounted on a mounting plate of the tape conveying path, so that the tape passes through the roller body, and the driving member drives the roller body to change its position relative to the mounting plate to adjust the position of the tape; The overall deflection correction module includes a material sensor, a deflection correction base and a deflection correction drive; the material sensor detects the posture of the material; the deflection correction base is installed on the back plate; the deflection correction drive is installed on the deflection correction base and is driven to be connected to the mounting plate, driving the mounting plate to move to change its position relative to the back plate.

2. The double-sided gluing device according to claim 1, characterized in that: The glue-applying mechanism includes an unwinding module, which includes an unwinding base, an unwinding disk, an unwinding drive and an unwinding linear bearing; the unwinding disk is installed on the unwinding base through a connecting piece; the unwinding drive is also installed on the unwinding base, and the unwinding drive is connected to the unwinding disk; the base of the unwinding linear bearing is fixedly connected to the unwinding base, and the guide shaft is clamped on the mounting plate.

3. The double-sided gluing device according to claim 2, characterized in that: The glue applying mechanism also includes a winding module, which includes a winding base, a winding disk, a winding drive and a winding linear bearing; the winding disk is installed on the winding base through a connecting piece; the winding drive is also installed on the winding base, and the winding drive is connected to the central axis of the winding disk; the base of the winding linear bearing is fixedly connected to the winding base, and the guide shaft is clamped on the mounting plate.

4. The double-sided gluing device according to claim 3, characterized in that: The glue sticking mechanism also includes a glue sticking module, and the glue sticking module includes a pre-pressing roller, and the pre-pressing roller includes two pressing rollers, and the pressing rollers are close to each other, and a gap is left in the middle for the material to pass through.

5. The double-sided gluing device according to claim 4, characterized in that: The glue laminating module also includes a hot roller. The material enters the hot roller after passing through the pre-pressing roller. The hot roller includes two hot pressing rollers and a heater. The hot pressing rollers are close to each other, leaving a gap in the middle for the material to pass through. The heater heats the hot pressing rollers.

6. The double-sided gluing device according to claim 2, characterized in that: The correction mechanism also includes an unwinding correction module, which includes an unwinding correction sensor, an unwinding correction base and an unwinding correction drive; the unwinding correction sensor detects the posture of the tape in the unwinding disk, the unwinding correction base is installed next to the unwinding disk, and the unwinding correction drive is installed on the unwinding correction base and drives the unwinding disk.

7. The double-sided gluing device according to claim 6, characterized in that: The unwinding correction module also includes an unwinding correction slider, the unwinding correction driving member is a ball screw motor, the unwinding correction slider is fixedly connected to the unwinding base, and is penetrated on the screw of the unwinding correction driving member.

8. The double-sided gluing device according to claim 3, characterized in that: The correction mechanism also includes a winding correction module, which includes a winding correction sensor, a winding correction base and a winding correction drive; the winding correction sensor detects the posture of the waste tape in the winding reel, the winding correction base is installed next to the winding reel, and the winding correction drive is installed on the winding correction base and drives the winding reel.

9. The double-sided gluing device according to claim 8, characterized in that: The winding correction module also includes a winding correction slider, the winding correction drive component is a ball screw motor, the winding correction slider is fixedly connected to the winding base, and is penetrated on the screw of the winding correction drive component.

10. The double-sided gluing device according to claim 1, characterized in that: The integral deflection correction module further comprises an integral deflection correction slider, the deflection correction driving member is a ball screw motor, the integral deflection correction slider is fixedly connected to the mounting plate, and is passed through the screw of the deflection correction driving member.

11. The double-sided gluing device according to claim 1, characterized in that: The transmission mechanism also includes an unwinding swing roller, which includes a swing roller, a swing arm, a bearing seat and a swing roller driving member; the swing roller is fixedly connected to the swing arm; the swing arm is fixedly connected to the bearing seat; and the bearing seat is drivingly connected to the swing roller driving member.

12. The double-sided gluing device according to claim 11, characterized in that: The transmission mechanism also includes a tension sensor, which is installed on the path of tape transmission. The tape tension can be detected when the tape passes through the tension sensor. Matching this, the unwinding swing roller also includes a sensor sheet and a sensor. The sensor sheet is installed on the unwinding swing roller and moves as the swing roller rotates. The sensor is installed at a limit position.

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