阅读说明：本技术 一种可重复定位涂布的锂电池极片底涂机 (Lithium battery pole piece primary coating machine capable of repeatedly positioning and coating ) 是由 张幸彬 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种可重复定位涂布的锂电池极片底涂机,包括放卷机构和收卷机构,放卷机构和收卷机构之间设置有定位进给机构,并且定位进给机构与收卷机构之间设置有膜长调节机构,膜长调节机构包括电机,电机固定于安装板的正面,并且电机的输出轴固定连接有传动杆,传动杆表面的两端均固定连接有挡板,并且两个挡板相对的一面均通过连接件转动连接有丝杆,丝杆的表面螺纹连接有活动块,本发明涉及锂电池生产技术领域。该可重复定位涂布的锂电池极片底涂机,解决了现有技术的锂电池极和睛底涂机当图案偏差范围较大时,定位进给机构便无法将涂有图案的基材调整到合适的位置及无法能将涂布精度控制在正负0.5mm的问题,使之无法能保证套色的精度。(The invention discloses a lithium battery pole piece prime coating machine capable of repeatedly performing positioning coating, which comprises an unwinding mechanism and a winding mechanism, wherein a positioning feeding mechanism is arranged between the unwinding mechanism and the winding mechanism, a film length adjusting mechanism is arranged between the positioning feeding mechanism and the winding mechanism, the film length adjusting mechanism comprises a motor, the motor is fixed on the front surface of an installation plate, an output shaft of the motor is fixedly connected with a transmission rod, two ends of the surface of the transmission rod are fixedly connected with baffle plates, the opposite surfaces of the two baffle plates are rotatably connected with a lead screw through connecting pieces, and the surface of the lead screw is in threaded connection with a movable block. This lithium battery pole piece prime coating machine of coating can repeat location has solved the lithium battery pole and the primary coating machine of eyeball of prior art when the pattern deviation scope is great, and the location feed mechanism just can't be with the substrate adjustment that coats the pattern suitable position and can't be at plus-minus 0.5 mm's problem with coating precision control, makes it can't guarantee the precision of chromatography.)

1. The utility model provides a lithium battery pole piece prime coat machine of coating can repeat location, includes unwinding mechanism (1) and winding mechanism (2), its characterized in that: the film winding and unwinding device is characterized in that a positioning and feeding mechanism (3) is arranged between the unwinding mechanism (1) and the winding mechanism (2), a film length adjusting mechanism (4) is arranged between the positioning and feeding mechanism (3) and the winding mechanism, the film length adjusting mechanism comprises a motor (5), the motor (5) is fixed on the front surface of the mounting plate (1), an output shaft of the motor (5) is fixedly connected with a transmission rod (6), two ends of the surface of the transmission rod (6) are fixedly connected with baffles (7), one opposite surfaces of the two baffles (7) are rotatably connected with a lead screw (8) through a connecting piece, surface threads of the lead screw (8) are connected with movable blocks (9), an adjusting guide roller (10) is arranged between the two movable blocks (9), one end of the lead screw (8) is fixedly connected with a first gear (11), and two sides of the surface of the transmission rod (6) are, and the first gear (11) is meshed with the second gear (12).

2. The lithium battery pole piece primer coating machine capable of repeatedly positioning and coating as claimed in claim 1, is characterized in that: one side of the unwinding mechanism (1) is provided with an unwinding traction mechanism (13), and one side of the winding mechanism (2) is provided with a winding traction mechanism (14).

3. The lithium battery pole piece primer coating machine capable of repeatedly positioning and coating as claimed in claim 1, is characterized in that: one side of the film length adjusting mechanism (4) is provided with an A-surface coating mechanism (15), and the top of the A-surface coating mechanism (15) is provided with an A-surface drying mechanism (16).

4. The lithium battery pole piece primer coating machine capable of repeatedly positioning and coating as claimed in claim 3, is characterized in that: a surface B coating mechanism (17) is arranged on the left side of the bottom of the surface A drying mechanism (16), and a surface B drying mechanism (18) is arranged between the surface B coating mechanism (17) and the winding and traction mechanism (14).

5. The lithium battery pole piece primer coating machine capable of repeatedly positioning and coating as claimed in claim 4, is characterized in that: and detection electric eyes (19) are arranged on the two sides of the surface A coating mechanism (15) and the surface B coating mechanism (17) and on the left side of the unreeling traction mechanism (2).

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a lithium battery pole piece prime coating machine capable of repeatedly positioning and coating.

Background

The traditional gravure primary coating equipment only needs to coat the patterns on the front side and the back side once, and requires the patterns on the front side and the back side to have relative contraposition relation.

In order to achieve both front and back coating, chinese patents with publication No. CN105921362A, entitled "a coater front and back coating alignment system", and publication No. CN106626723A, entitled "a double-sided foam printing machine", have proposed both double-sided coating and double-sided printing, but neither can coat or print in the gap region. In order to achieve coating of the gap region of the substrate, the applicant has proposed chinese invention patent publication No. CN107984882A entitled "coating gravure press apparatus for lithium ion battery production" which can achieve coating of both the front and back sides of the battery and the gap region of the battery, but the above patent technologies all have disadvantages such as large coating error and poor coating accuracy in the gap region, and the coating accuracy deviation in the gap region is 1cm or more.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a lithium battery pole piece prime coating machine capable of repeatedly positioning and coating, which not only can coat the front side and the back side of a lithium battery pole piece, but also can coat a gap area between two adjacent patterns on the same side, and scientifically and reasonably designs the structure of the whole machine, so that the coating precision deviation of the gap area is controlled to be plus or minus 0.5mm by combining a positioning feed mechanism and a film length adjusting mechanism with other parts.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a lithium-ion battery pole piece primary coating machine of coating can repeat location, includes unwinding mechanism and winding mechanism, is provided with location feed mechanism between unwinding mechanism and the winding mechanism to be provided with the long adjustment mechanism of membrane between location feed mechanism and the winding mechanism, the long adjustment mechanism of membrane includes the motor, the motor is fixed in the front of mounting panel to the output shaft fixedly connected with transfer line of motor, the equal fixedly connected with baffle in both ends on transfer line surface to two relative one sides of baffle all rotate through the connecting piece and are connected with the lead screw, the surperficial threaded connection of lead screw has the movable block to be provided with the adjustment deflector roll between two movable blocks, the first gear of one end fixedly connected with of lead screw, the both sides on transfer line surface all overlap and are equipped with the second gear to first gear meshes with the second gear mutually. The first gear and the second gear are bevel gears, the unwinding mechanism is provided with an unwinding roller, and the winding mechanism is provided with a winding roller.

Preferably: one side of unwinding mechanism is provided with unreeling drive mechanism, one side of winding mechanism is provided with rolling drive mechanism. The unwinding traction mechanism is provided with a first traction roller for unwinding, the positioning and feeding mechanism comprises a second traction roller and a first compression roller arranged on the second traction roller, and one side of the second traction roller is provided with a servo motor; the winding traction mechanism is provided with a third traction roller for winding, and one side of the third traction roller is provided with a winding motor.

Preferably: one side of the membrane length adjusting mechanism is provided with an A-surface coating mechanism, and the top of the A-surface coating mechanism is provided with an A-surface drying mechanism.

Preferably: a surface B coating mechanism is arranged on the left side of the bottom of the surface A drying mechanism, and a surface B drying mechanism is arranged between the surface B coating mechanism and the winding traction mechanism. The surface A coating mechanism and the surface B drying mechanism are both provided with coating rollers, and a second pressing roller is arranged on the coating rollers. The A surface drying mechanism and the B surface drying mechanism both comprise an oven and a heating rod arranged in the oven. The surface coating mechanism A is used for coating one surface of the lithium battery pole piece, and the surface coating mechanism B is used for coating the other surface of the lithium battery pole piece.

Preferably: and detection electric eyes are arranged on the two sides of the surface A coating mechanism and the surface B coating mechanism and on the left side of the unwinding traction mechanism. Each detection electric eye is respectively connected with a controller in a servo motor of the positioning and feeding mechanism through signals. The detection electric eyes positioned at two sides of the A-surface coating mechanism are used for detecting the positions of the patterns coated on the front surface, the back surface or the front surface and the back surface of the battery firstly, and can transmit the detected signals to the positioning and feeding mechanism. The positioning and feeding mechanism is used for adjusting the relative feeding or conveying position of the lithium battery pole piece according to signals detected by the detection electric eyes positioned at two sides of the A-surface coating mechanism so as to ensure that the position of a pattern required to be coated on the lithium battery pole piece can correctly correspond to the coating position. The film length adjusting mechanism is used for controlling the conveying speed and the conveying length of the lithium battery pole piece when the pattern deviation range is found to be large, so that the lithium battery pole piece meets the requirement of accurate color register, the coating precision deviation can be controlled to be plus or minus 0.5mm, and the problem that the coating precision deviation of the existing bottom coating machine is more than 1cm is solved. When a motor in the film length adjusting mechanism is started, the motor drives the adjusting guide roller to move up and down together through the transmission rod, the two gears and the movable block, so that the film path length between the positioning and feeding mechanism and the A-surface coating mechanism is lengthened or shortened, and the adjustment of color register can be accurately realized.

Advantageous effects

The invention provides a lithium battery pole piece base coating machine capable of repeatedly positioning and coating. The method has the following beneficial effects:

(1) the lithium battery pole piece primary coating machine capable of repeatedly positioning and coating detects the position of a pattern coated on an original substrate through a detection electric eye before coating, and feeds the pattern position back to a positioning and feeding mechanism, the positioning and feeding mechanism adjusts the relative position after receiving an instruction and controls the time for the substrate coated with the pattern to enter an A-surface coating mechanism, so that the pattern to be coated on the A-surface coating is ensured to be just coated in the middle of the pattern, when the pattern deviation range is larger, a motor drives a lead screw to rotate, an adjusting guide roller on the lead screw moves up and down, the length of a film path between the positioning and feeding mechanism and the A-surface coating mechanism is prolonged or shortened, the color register function of the positioning and feeding mechanism is realized, and the problems that the substrate cannot be accurately adjusted to a proper position when the pattern deviation range of the lithium battery pole piece primary coating machine in the prior art is larger are solved.

(2) This lithium-ion battery pole piece primary coating machine of coating of repeatedly fixing a position, both sides through at A face coating mechanism and B face coating mechanism and the left side of unreeling drive mechanism all are provided with the detection electric eye, the setting of a plurality of detection electric eyes can real-time supervision battery pole piece membrane A, B the face the coating position, and simultaneously, it still designs the structure of location feed mechanism and the long adjustment mechanism of membrane respectively, and with a plurality of detection electric eyes and location feed mechanism and the long adjustment mechanism supporting use of membrane, make it not only realize can accurate secondary chromatography, it still realizes controlling the precision deviation of clearance region coating at positive and negative 0.5 mm.

Drawings

FIG. 1 is a schematic view of the orientation of the substrate in the working state of the structure of the present invention.

FIG. 2 is a schematic structural view of a membrane conditioning mechanism according to the present invention.

FIG. 3 is a diagram showing the positional relationship between the film regulating mechanism and the apparatus body according to the present invention.

In the figure: the device comprises an unwinding mechanism 1, a winding mechanism 2, a positioning and feeding mechanism 3, a film length adjusting mechanism 4, a motor 5, a transmission rod 6, a baffle 7, a lead screw 8, a movable block 9, an adjusting guide roller 10, a first gear 11, a second gear 12, an unwinding traction mechanism 13, a winding traction mechanism 14, a surface coating mechanism 15A, a surface drying mechanism 16A, a surface coating mechanism 17B, a surface drying mechanism 18B and a detection electric eye 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a lithium battery pole piece prime coat machine capable of repeatedly positioning and coating comprises an unwinding mechanism 1 and a winding mechanism 2, wherein a positioning feeding mechanism 3 is arranged between the unwinding mechanism 1 and the winding mechanism 2, and a film length adjusting mechanism 4 is arranged between the positioning feeding mechanism 3 and the winding mechanism, the film length adjusting mechanism comprises a motor 5, the motor 5 is fixed on the front surface of the mounting plate 1, and the output shaft of the motor 5 is fixedly connected with a transmission rod 6, both ends of the surface of the transmission rod 6 are fixedly connected with baffle plates 7, and the opposite surfaces of the two baffles 7 are rotatably connected with a screw rod 8 through a connecting piece, the surface of the screw rod 8 is in threaded connection with a movable block 9, and an adjusting guide roller 10 is arranged between the two movable blocks 9, one end of the screw rod 8 is fixedly connected with a first gear 11, the two sides of the surface of the transmission rod 6 are both sleeved with a second gear 12, and the first gear 11 is meshed with the second gear 12.

Further: one side of the unwinding mechanism 1 is provided with an unwinding traction mechanism 13, and one side of the winding mechanism 2 is provided with a winding traction mechanism 14.

Further: the film length adjusting mechanism 4 is provided with an a-side coating mechanism 15 on one side, and an a-side drying mechanism 16 is provided on the top of the a-side coating mechanism 15.

Further: a B surface coating mechanism 17 is arranged on the left side of the bottom of the A surface drying mechanism 16, and a B surface drying mechanism 18 is arranged between the B surface coating mechanism 17 and the winding traction mechanism 14.

Further: the detection electric eyes 19 are arranged on the two sides of the surface A coating mechanism 15 and the surface B coating mechanism 17 and on the left side of the unwinding traction mechanism 2.

When in use, firstly, the lithium battery pole piece material roll is placed in the unwinding mechanism 1, then, the beginning end of the lithium battery pole piece material roll is unwound and then is sequentially transmitted to the winding mechanism 2 through the unwinding traction mechanism 13, the positioning feeding mechanism 3, the film length adjusting mechanism 4, the A surface coating mechanism 15, the A surface drying mechanism 16, the B surface coating mechanism 17, the B surface drying mechanism 18 and the winding traction mechanism 14, in the transmission process of the lithium battery pole piece, when a detection electric eye 19 before coating detects the position of a pattern to be coated such as a base material and the like, the detection signal can be automatically fed back to the positioning feeding mechanism 3, after the positioning feeding mechanism 3 receives an instruction, the relative position of the positioning feeding mechanism is adjusted, the time for the base material to be coated to enter the A surface coating mechanism 15 is controlled, so that the pattern to be coated in the A surface coating can be accurately attached to a coating roller in the A surface coating mechanism 15, when the deviation range of the pattern is large, the motor 5 drives the screw rod 8 to rotate, so that the adjusting guide roller 10 on the screw rod 8 moves up and down, thereby lengthening or shortening the length of a film path between the positioning and feeding mechanism 3 and the surface A coating mechanism 15, thereby realizing the color register function, after the surface A coating mechanism 15 finishes coating the lithium battery pole piece, the lithium battery pole piece can be automatically conveyed into the surface B coating mechanism 18 under the action of the traction force of the winding mechanism 2, the surface B coating mechanism 18 is used for coating the gap area of the lithium battery pole piece, the detecting electric eyes at two sides of the coating mechanism 18 can automatically detect the position of the lithium battery pole piece to be coated for the second time, after the surface B coating mechanism 18 finishes coating the gap area of the lithium battery pole piece, the lithium battery pole piece is conveyed into the surface B drying mechanism 18, after the surface B drying mechanism 18 dries the lithium battery pole piece conveyed through the adjusting guide roller, the lithium battery pole piece is conveyed to the winding mechanism 2 through the traction mechanism 14, and is recovered by the winding mechanism 2; the integral structural design of the device not only enables the device to carry out a series of operations of unreeling, traction transmission, unreeling positioning detection, positioning feeding, film length adjustment, detection before A surface positioning coating, A surface coating, detection after A surface positioning coating, drying of A surface coating, detection before B surface positioning coating, B surface coating, detection after B surface positioning coating, drying of B surface coating, winding traction, winding and the like on a base material, so that the lithium battery pole piece can finish front and back surface coating and double-sided or single-sided gap area coating in one transmission process, but also can precisely coat the gap area between two adjacent patterns in the lithium battery pole piece, and can control the coating precision deviation to be within plus or minus 0.5mm so as to ensure high coating precision and color coating precision.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.