Distance adjusting mechanism, cutting device and lamination stacking machine

Abstract

The utility model relates to the technical field of pole piece processing, in particular to a distance adjusting mechanism, a cutting device and a laminating machine, and the distance adjusting mechanism comprises a first distance adjusting unit and a second distance adjusting unit. And the moving speed of the pole piece can be adjusted by controlling the rotating speed of the first driving roller of the first distance adjusting unit. And the moving speed of the pole piece can be adjusted again by controlling the rotating speed of the second driving roller of the second distance adjusting unit. And the distance adjusting mechanism provides a place for adjusting the distance between the pole pieces. In the distance adjusting process, the conveying belt for conveying the pole pieces does not need to be frequently started and stopped, the distance between the pole pieces does not need to be adjusted by rotating the conveying belt in an acceleration and deceleration mode, the conveying belt for conveying the pole pieces always rotates at a constant speed, and the utilization rate of a production line is guaranteed. Meanwhile, the abrasion phenomenon caused by frequent start and stop and frequent acceleration and deceleration rotation of the conveying belt is avoided, the service life of the conveying belt is prolonged, the deviation risk of the conveying belt is reduced, the time for replacing and maintaining the conveying belt is saved, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece processing, in particular to a distance adjustment mechanism, a cutting device and a laminating machine. Background Art

[0002] As stacking technology is increasingly used in the field of lithium-ion batteries, people are increasingly demanding the stability and utilization rate of stacking machines. When cutting one pole piece after another from the pole piece strip, the conveyor belt used to transport the pole pieces needs to be stationary. The spacing between pole pieces is adjusted by controlling the start and stop and acceleration and deceleration of the conveyor belt that transports the pole pieces. Therefore, the conveyor belt needs to be started and stopped frequently or accelerated and decelerated, resulting in a low utilization rate of the production line. Utility Model Content

[0003] The utility model provides a distance adjustment mechanism, a cutting device and a stacking machine, which are used to solve the problem of low utilization rate of a production line.

[0004] The utility model provides a distance adjustment mechanism, comprising:

[0005] The first spacing adjustment unit comprises a first active roller and a first driven roller; the first driven roller is arranged above the first active roller, and the axis thereof is parallel to the axis of the first active roller; the side walls of the first active roller and the first driven roller are suitable for being attached to two opposite side surfaces of the same pole piece; the first active roller can rotate, drive the first driven roller to rotate, and move the pole piece;

[0006] The second distance adjusting unit is arranged on one side of the first distance adjusting unit, and includes a second active roller and a second driven roller; the second driven roller is arranged above the second active roller, and the axis thereof is parallel to the axis thereof; the side walls of the second active roller and the second driven roller are suitable for fitting to the opposite sides of the same pole piece; the second active roller can rotate, drive the second driven roller to rotate, and move the pole piece.

[0007] In some embodiments, the first distance adjustment unit further includes a first lifting seat, which can move up and down; opposite ends of the first driven roller are respectively rotatably connected to the first lifting seat, and can move up and down with the first lifting seat;

[0008] And / or, the second distance adjusting unit further comprises a second lifting seat, which can move up and down; and opposite ends of the second driven roller are respectively rotatably connected to the second lifting seat and can move up and down with the second lifting seat.

[0009] In some embodiments, the first distance adjustment unit further includes a first linear drive; an output shaft of the first linear drive is connected to the first lifting seat, and can drive the first lifting seat to move up and down;

[0010] And / or, the second distance adjustment unit further comprises a second linear drive; the output shaft of the second linear drive is connected to the second lifting seat, and can drive the second lifting seat to move up and down;

[0011] And / or, the first pitch adjustment unit further comprises a first rotation driver; an output shaft of the first rotation driver is fixedly connected to one end of the first active roller, and is used to drive the first active roller to rotate;

[0012] And / or, the second spacing adjustment unit further includes a second rotation driver; the output shaft of the second rotation driver is fixedly connected to one end of the second active roller, so as to drive the second active roller to rotate.

[0013] In some embodiments, the first distance adjustment unit further includes a first bracket and a first guide assembly; a first lifting seat, a first active roller and a first driven roller are installed inside the first bracket; there are two first guide assemblies, one of which is installed between one end of the first bracket and one end of the first lifting seat, and the other is installed between the other end of the first bracket and the other end of the first lifting seat, for guiding the up and down movement of the first lifting seat;

[0014] And / or, the second distance adjusting unit further includes a second bracket and a second guide assembly; a second lifting seat, a second active roller and a second driven roller are installed inside the second bracket; there are two second guide assemblies, one of which is installed between one end of the second bracket and one end of the second lifting seat, and the other is installed between the other end of the second bracket and the other end of the second lifting seat, for guiding the up and down movement of the second lifting seat.

[0015] In some embodiments, the first distance adjustment unit further includes a first chip removal portion; the first chip removal portion is disposed below the first active roller and contacts the side wall of the first active roller;

[0016] And / or, the second distance adjusting unit further includes a second chip removing portion; the second chip removing portion is arranged below the second active roller and contacts with a side wall of the second active roller.

[0017] In some embodiments, the first distance adjustment unit further includes a first chip extraction pipe; the first chip extraction pipe is disposed below the first chip removal portion and communicated with the first chip removal portion;

[0018] And / or, the second distance adjusting unit further includes a second chip extraction pipe; the second chip extraction pipe is arranged below the second chip removal part and is connected to the second chip removal part.

[0019] A cutting device based on the same concept comprises:

[0020] The distance adjustment mechanism provided by any of the above embodiments;

[0021] A discharging unit is arranged on a side of the first distance adjusting unit away from the second distance adjusting unit and is used for conveying the electrode piece;

[0022] A first cutting unit is arranged at a side of the discharging unit away from the first spacing unit, and is used for cutting the pole pieces from the pole piece strip;

[0023] A feeding unit, arranged at a side of the first cutting unit away from the discharging unit, for conveying the electrode strip;

[0024] A second cutting unit is arranged at a side of the feeding unit away from the first cutting unit, and is used for cutting the pole pieces from the pole piece strip;

[0025] The feeding unit is arranged on a side of the second cutting unit away from the feeding unit and is used for conveying the electrode strip.

[0026] In some of the embodiments, the structure of the first distance adjusting unit is respectively the same as the structure of the discharging unit, the feeding unit, and the feeding unit;

[0027] The first cutting unit includes:

[0028] A first fixing seat;

[0029] A first bearing seat is installed on the top surface of the first fixing seat, and the top surface is used to bear the pole piece strip;

[0030] A first cutting knife is movably disposed above the top surface of the first bearing seat;

[0031] The second cutting unit includes:

[0032] A second fixing seat;

[0033] A second bearing seat is installed on the top surface of the second fixing seat, and the top surface is used to bear the pole piece strip;

[0034] The second cutter is movably disposed above the top surface of the second bearing seat.

[0035] In some embodiments, a first chip leakage hole is formed on the top surface of the first bearing seat, and a first chip collection cavity is formed inside;

[0036] And / or, a second chip leakage hole is opened on the top surface of the second bearing seat, and a second chip collecting chamber is inside.

[0037] A laminating machine based on the same concept, comprising:

[0038] The cutting device provided by any of the above embodiments;

[0039] The conveying unit is arranged on a side of the second distance adjusting unit away from the first distance adjusting unit.

[0040] The beneficial effects of the utility model are as follows: the distance adjusting mechanism of the utility model can adjust the moving speed of the pole piece by setting the first distance adjusting unit and the second distance adjusting unit, and can adjust the moving speed of the pole piece by controlling the rotation speed of the first active roller of the first distance adjusting unit, and can adjust the moving speed of the pole piece again by controlling the rotation speed of the second active roller of the second distance adjusting unit. The distance adjusting mechanism provides a place for adjusting the distance between the pole pieces, and the adjustment of the distance between each two adjacent pole pieces can be completed at the distance adjusting mechanism. In the process of adjusting the distance, there is no need to frequently start and stop the conveyor belt for conveying the pole pieces, and there is no need to adjust the distance between the pole pieces by accelerating and decelerating the conveyor belt. The conveyor belt for conveying the pole pieces can always rotate at a uniform speed, thereby ensuring the utilization rate of the production line. At the same time, the wear phenomenon caused by the frequent start and stop and frequent acceleration and deceleration of the conveyor belt is avoided, which is beneficial to prolonging the service life of the conveyor belt, reducing the risk of conveyor belt deviation, saving time for replacing and maintaining the conveyor belt, and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of some specific embodiments of a distance adjustment mechanism of the utility model;

[0042] Figure 2 yes Figure 1 Schematic diagrams of the structures of some specific embodiments of the first distance adjustment unit in the distance adjustment mechanism are shown.

[0043] Figure 3 Structural schematic diagrams of some specific embodiments of a cutting device of the utility model;

[0044] Figure 4 yes Figure 3 The schematic structural diagrams of some specific embodiments of the first cutting unit in the cutting device shown;

[0045] Figure 5 This is a schematic diagram of a lamination machine of the utility model before cutting the pole piece strip;

[0046] Figure 6 This is a schematic diagram of a lamination machine of the utility model when cutting a pole piece strip;

[0047] Figure 7 It is a schematic diagram of a lamination machine of the utility model after cutting the pole piece strip.

[0048] In the accompanying drawings, 110, the first distance adjusting unit; 111, the first active roller; 112, the first driven roller; 113, the first lifting seat; 114, the first linear drive; 115, the first rotary drive; 116, the first bracket; 117, the first guide assembly; 118, the first chip removal section; 119, the first chip extraction pipe; 120, the second distance adjusting unit; 210, the discharging unit; 220, the first cutting unit; 221, the first fixed seat; 222, the first supporting seat; 223, the first cutter; 230, the feeding unit; 240, the second cutting unit; 250, the feeding unit; 310, the conveying unit; 400, the pole piece strip; 410, the pole piece. DETAILED DESCRIPTION

[0049] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] As mentioned in the background technology, when cutting one electrode after another from the electrode material strip, the conveyor belt used to transport the electrode needs to be stationary. The spacing between the electrode pieces is adjusted by controlling the start and stop and the acceleration and deceleration of the conveyor belt that transports the electrode pieces. Therefore, it is necessary to frequently start and stop the conveyor belt or accelerate and decelerate the conveyor belt, resulting in a low utilization rate of the production line.

[0051] Production line utilization rate = (normal production time / total time) * 100%. The total time is the sum of normal production time and abnormal production time. Normal production time refers to the time the production line is in normal operation, excluding the time spent on repairs, maintenance, replacement of parts, and downtime.

[0052] To solve the above problems, refer to Figure 1 and Figure 2The utility model provides a distance adjustment mechanism, including a first distance adjustment unit 110 and a second distance adjustment unit 120. The first distance adjustment unit 110 includes a first active roller 111 and a first driven roller 112. The first driven roller 112 is arranged above the first active roller 111, and the axis is parallel to the axis of the first active roller 111. The side walls of the first active roller 111 and the first driven roller 112 are suitable for fitting to the opposite sides of the same pole piece 410. The first active roller 111 can rotate, drive the first driven roller 112 to rotate, and move the pole piece 410. The second distance adjustment unit 120 is arranged on one side of the first distance adjustment unit 110. The second distance adjustment unit 120 includes a second active roller and a second driven roller. The second driven roller is arranged above the second active roller, and the axis is parallel to the axis of the second active roller. The side walls of the second active roller and the second driven roller are suitable for fitting to the opposite sides of the same pole piece 410. The second active roller can rotate, drive the second driven roller to rotate, and move the pole piece 410 .

[0053] Specifically, the moving speed of the pole piece 410 can be adjusted by controlling the rotation speed of the first active roller 111 of the first distance adjusting unit 110. The moving speed of the pole piece 410 can be adjusted again by controlling the rotation speed of the second active roller of the second distance adjusting unit 120. The distance adjusting mechanism provides a place for adjusting the spacing between the pole pieces 410, and the adjustment of the spacing between each two adjacent pole pieces 410 can be completed at the distance adjusting mechanism. In the process of spacing adjustment, there is no need to frequently start and stop the conveyor belt for conveying the pole pieces 410, nor is there any need to adjust the spacing between the pole pieces 410 by accelerating and decelerating the conveyor belt. The conveyor belt for conveying the pole pieces 410 can always rotate at a uniform speed, thereby ensuring the utilization rate of the production line. At the same time, the wear phenomenon caused by the frequent start and stop and frequent acceleration and deceleration of the conveyor belt is avoided, which is conducive to extending the service life of the conveyor belt, reducing the risk of the conveyor belt deviation, saving the time for replacing and maintaining the conveyor belt, and improving production capacity.

[0054] Specifically, in the exemplary embodiment, the first distance adjustment unit 110 further includes a first lifting seat 113, which can move up and down. The opposite ends of the first driven roller 112 are respectively connected to the opposite ends of the bottom of the first lifting seat 113 through bearings, and can move up and down with the first lifting seat 113. It should be noted that the height of the first active roller 111 in the vertical direction does not change. By controlling the height of the first lifting seat 113 in the vertical direction, the height of the first driven roller 112 in the vertical direction can be controlled. The first driven roller 112 cooperates with the first active roller 111 to enable the pole piece 410 to translate stably.

[0055] And / or, the second distance adjustment unit 120 also includes a second lifting seat, which can move up and down. The opposite ends of the second driven roller are respectively connected to the opposite ends of the bottom of the second lifting seat through bearings, and can move up and down with the second lifting seat. It should be noted that the height of the second active roller in the vertical direction does not change. By controlling the height of the second lifting seat in the vertical direction, the height of the second driven roller in the vertical direction can be controlled. The second driven roller cooperates with the second active roller to enable the pole piece 410 to translate stably.

[0056] Specifically, in the exemplary embodiment, the first distance adjustment unit 110 further includes a first linear drive 114. The output shaft of the first linear drive 114 is arranged downward, and the output shaft of the first linear drive 114 is fixedly connected to the top of the first lifting seat 113. The first linear drive 114 can drive the first lifting seat 113 to move up and down, thereby driving the first driven roller 112 to move up and down. Compared with the human-driven method, it is conducive to improving the degree of automation and ensuring the efficiency of the position adjustment of the first driven roller 112.

[0057] And / or, the second distance adjustment unit 120 further includes a second linear drive. The output shaft of the second linear drive is arranged downward, and the output shaft of the second linear drive is fixedly connected to the top of the second lifting seat, which can drive the second lifting seat to move up and down, thereby driving the second driven roller to move up and down. Compared with the manual drive method, it is conducive to improving the degree of automation and ensuring the efficiency of the position adjustment of the second driven roller.

[0058] And / or, the first distance adjustment unit 110 further includes a first rotation driver 115. The output shaft of the first rotation driver 115 is fixedly connected to one end of the first active roller 111, and is used to drive the first active roller 111 to rotate. Compared with the human-driven mode, it is beneficial to improve the degree of automation.

[0059] And / or, the second distance adjusting unit 120 further includes a second rotary driver, the output shaft of which is fixedly connected to one end of the second active roller, for driving the second active roller to rotate. Compared with the human-driven mode, this is conducive to improving the degree of automation.

[0060] Preferably, there are two first linear drivers 114, and the output shafts are fixedly connected to the opposite ends of the top of the first lifting seat 113, respectively. Compared with the form of a single first linear driver 114, the first lifting seat 113 is subjected to uniform force during the lifting process. There are two second linear drivers, and the output shafts are fixedly connected to the opposite ends of the top of the second lifting seat, respectively. Compared with the form of a single second linear driver, the second lifting seat is subjected to uniform force during the lifting process. There is one first rotary driver 115, and one second rotary driver.

[0061] Preferably, the first linear drive 114 and the second linear drive can be servo electric cylinders, which have higher control accuracy, so that the control accuracy of the resistance force is higher, and the resistance force on both sides is basically consistent. The first linear drive 114 and the second linear drive can also be electric push rods, which can control the thrust and speed by adjusting the pitch, and can achieve very precise positioning and motion control. There is no need to use liquid or gas or other working fluids during work, so there will be no problem of hydraulic oil or gas leakage polluting the working environment, and the environmental protection performance is better. At the same time, it is easy to install and has low maintenance costs. Of course, the first linear drive 114 and the second linear drive can also be hydraulic cylinders or air cylinders, with relatively stable power output, faster action, strong reliability, simple structure, and low maintenance costs.

[0062] Preferably, the first rotation driver 115 and the second rotation driver can be servo motors with high control accuracy. Of course, the first rotation driver 115 and the second rotation driver can also be stepper motors.

[0063] Specifically, in the exemplary embodiment, the first distance adjustment unit 110 further includes a first bracket 116 and a first guide assembly 117 of a rectangular structure. The first lifting seat 113, the first active roller 111 and the first driven roller 112 are installed inside the first bracket 116. The first linear drive 114 is installed on the top of the first bracket 116, and the first rotary drive 115 is installed on the outside of one end. The opposite ends of the first active roller 111 are rotatably connected to the opposite ends of the first bracket 116 through bearings. The first bracket 116 is used to support the first lifting seat 113, the first active roller 111, the first driven roller 112, the first linear drive 114 and the first rotary drive 115. There are two first guide components 117, one of which is installed between one end of the first bracket 116 and one end of the first lifting seat 113, and the other first guide component 117 is installed between the other end of the first bracket 116 and the other end of the first lifting seat 113, and is used to guide the up and down movement of the first lifting seat 113, so that the lifting seat can move in a directional manner, thereby ensuring the stability of the first lifting seat 113 when it is lifted or lowered.

[0064] And / or, the second distance adjustment unit 120 also includes a second bracket of a rectangular structure and a second guide assembly. A second lifting seat, a second active roller and a second driven roller are installed inside the second bracket. A second linear drive is installed on the top of the second bracket, and a second rotary drive is installed on the outside of one end. The opposite ends of the second active roller are rotatably connected to the opposite ends of the second bracket through bearings. The second bracket is used to support the second lifting seat, the second active roller, the second driven roller, the second linear drive and the second rotary drive. There are two second guide assemblies, one of which is installed between one end of the second bracket and one end of the second lifting seat, and the other second guide assembly is installed between the other end of the second bracket and the other end of the second lifting seat, and is used to guide the up and down movement of the second lifting seat.

[0065] Preferably, each first guide assembly 117 includes a slide groove and a slide rail matched with the slide groove. The slide groove of one first guide assembly 117 is installed at one end of the first lifting seat 113, and the slide rail is installed on the inner wall of one end of the first bracket 116. The slide groove of another first guide assembly 117 is installed at the other end of the first lifting seat 113, and the slide rail is installed on the inner wall of the other end of the first bracket 116.

[0066] Preferably, each second guide assembly also includes a slide groove and a slide rail matched with the slide groove. The slide groove of one second guide assembly is installed at one end of the second lifting seat, and the slide rail is installed on the inner wall of one end of the second bracket. The slide groove of another second guide assembly is installed at the other end of the second lifting seat, and the slide rail is installed on the inner wall of the other end of the second bracket.

[0067] Specifically, in the exemplary embodiment, the first distance adjusting unit 110 further includes a first chip removing portion 118. The first chip removing portion 118 is disposed below the first active roller 111, mounted on the inner bottom surface of the first bracket 116, and in contact with the side wall of the first active roller 111, and can remove the chips attached to the side wall of the first active roller 111.

[0068] And / or, the second distance adjusting unit 120 further includes a second chip removing part. The second chip removing part is arranged below the second active roller, installed on the inner bottom surface of the second bracket, and contacts the side wall of the second active roller, and can remove the chips attached to the side wall of the second active roller.

[0069] Preferably, the first debris removing portion 118 and the second debris removing portion may be bristles, or may be cloth or sponge.

[0070] When the first chip removal part 118 and the second chip removal part are bristles, the first distance adjustment unit 110 also includes a first chip extraction pipe 119. The first chip extraction pipe 119 is arranged below the first chip removal part 118, connected to the first chip removal part 118, and communicated. The first chip extraction pipe 119 can be communicated with a vacuum pump to separate the debris attached to the first chip removal part 118 from the first chip removal part 118. And / or, the second distance adjustment unit 120 also includes a second chip extraction pipe. The second chip extraction pipe is arranged below the second chip removal part, connected to the second chip removal part, and communicated. The second chip extraction pipe can also be communicated with a vacuum pump to separate the debris attached to the second chip removal part from the second chip removal part.

[0071] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model also provides a cutting device, including the distance adjustment mechanism provided in any of the above embodiments, the discharging unit 210, the first cutting unit 220, the feeding unit 230, the second cutting unit 240 and the feeding unit 250. The discharging unit 210 is arranged on the side of the first distance adjustment unit 110 away from the second distance adjustment unit 120, and is used to transport the pole piece 410 away from the cutting station. The first cutting unit 220 is arranged on the side of the discharging unit 210 away from the first distance adjustment unit 110, and is used to cut the pole piece 410 from the pole piece strip 400. The feeding unit 230 is arranged on the side of the first cutting unit 220 away from the discharging unit 210, and is used to transport the pole piece strip 400. The second cutting unit 240 is arranged on the side of the feeding unit 230 away from the first cutting unit 220, and is used to cut the pole piece 410 from the pole piece strip 400. The feeding unit 250 is arranged on the side of the second cutting unit 240 away from the feeding unit 230, and is used to convey the electrode material belt 400 to the cutting station. The cutting device serves as a place for cutting and adjusting the spacing of the electrode 410. During the cutting and spacing adjustment of the electrode 410, there is no need to frequently start and stop the conveyor belt for conveying the electrode 410, nor is there any need to adjust the spacing between the electrode 410 by accelerating and decelerating the conveyor belt. The conveyor belt for conveying the electrode 410 can always rotate at a uniform speed, thereby ensuring the utilization rate of the production line. At the same time, the wear caused by the frequent starting and stopping of the conveyor belt and the frequent acceleration and deceleration of the conveyor belt is avoided, which is conducive to extending the service life of the conveyor belt, reducing the risk of the conveyor belt running off, saving the time for replacing and maintaining the conveyor belt, and improving the production capacity.

[0072] Specifically, in the exemplary embodiment, the structure of the first distance adjustment unit 110 is respectively the same as that of the discharging unit 210, the feeding unit 230, and the feeding unit 250. The structures of the discharging unit 210, the feeding unit 230, and the feeding unit 250 are not described in detail here. The first cutting unit 220 includes a first fixed seat 221, a first bearing seat 222, a third bracket, a first cutter 223, and a third driver. The first bearing seat 222 is fixedly mounted on the top surface of the first fixed seat 221 and is located in the third bracket. The top surface of the first bearing seat 222 is used to carry the pole piece strip 400. The third bracket is fixedly mounted on the top of the first fixed seat 221, and is used to support the first cutter 223 and the third driver. The first cutter 223 is movably arranged above the top surface of the first bearing seat 222 and is located in the third bracket. The third driver is installed on the top of the third bracket. The output shaft of the third driver is connected to the top of the first cutter 223. The first cutter 223 is driven by the third driver to move up and down to cut the pole piece 410 from the pole piece strip 400. The second cutting unit 240 includes a second fixed seat, a second bearing seat, a fourth bracket, a second cutter and a fourth driver. The second bearing seat is fixedly mounted on the top surface of the second fixed seat and is located in the fourth bracket. The top surface of the second bearing seat is used to carry the pole piece strip 400. The fourth bracket is fixedly mounted on the top of the second fixed seat and is used to support the second cutter and the fourth driver. The second cutter is movably arranged above the top surface of the second bearing seat and is located in the fourth bracket. The fourth driver is mounted on the top of the fourth bracket. The output shaft of the fourth driver is connected to the top of the second cutter. The second cutter is driven by the fourth driver to move up and down to cut the pole piece 410 from the pole piece strip 400.

[0073] Preferably, the third driver can be a linear driver such as a servo electric cylinder, an electric push rod, a hydraulic cylinder or a pneumatic cylinder, and the output shaft is directly fixedly connected to the top of the first cutter 223. The third driver can also be a rotary driver such as a servo motor or a stepper motor, which is connected to the top of the first cutter 223 through a crank connecting rod. The crank connecting rod can convert the rotary motion into a linear motion. The fourth driver can be a linear driver such as a servo electric cylinder, an electric push rod, a hydraulic cylinder or a pneumatic cylinder, and the output shaft is directly fixedly connected to the top of the second cutter. The fourth driver can also be a rotary driver such as a servo motor or a stepper motor, which is connected to the top of the second cutter through a crank connecting rod. The crank connecting rod can convert the rotary motion into a linear motion.

[0074] Preferably, the opposite ends of the first cutter 223 are connected to the opposite ends of the third bracket via a first guide assembly 117, so that the first cutter 223 can move in a directional manner, ensuring the stability of the first cutter 223 when it is raised or lowered. The opposite ends of the second cutter are connected to the opposite ends of the fourth bracket via a second guide assembly, so that the second cutter can move in a directional manner, ensuring the stability of the second cutter when it is raised or lowered.

[0075] Preferably, two opposite ends of the third bracket are provided with handles, respectively. Two opposite ends of the fourth bracket are also provided with handles, respectively.

[0076] Preferably, the cutting device further comprises a base, on the top surface of which are fixedly mounted a distance adjustment mechanism, a discharging unit 210, a first cutting unit 220, a feeding unit 230, a second cutting unit 240 and a feeding unit 250. The base facilitates the overall position transfer of the cutting device.

[0077] Preferably, a first chip leakage hole is provided on the top surface of the first bearing seat 222, and a first chip collection cavity is provided inside the first chip collection cavity. The first chip collection cavity can be connected to a vacuum pump to allow the debris to escape from the first chip collection cavity.

[0078] And / or, a second chip leakage hole is provided on the top surface of the second bearing seat, and a second chip collection cavity is provided inside the second chip collection cavity. The second chip collection cavity can be connected to a vacuum pump to allow the chips to escape from the second chip collection cavity.

[0079] Reference Figure 5 , Figure 6 and Figure 7 The utility model also provides a laminating machine, comprising the cutting device and the conveying unit 310 provided in any of the above embodiments. The conveying unit 310 is arranged on the side of the second distance adjustment unit 120 away from the first distance adjustment unit 110. The conveying unit 310 comprises a conveying belt. The conveying belt is used to convey the pole pieces 410 with adjusted spacing. Figure 5-Figure 7 The arrows in the figure show the travel direction of the pole piece strip 400 and the pole piece 410. It should be pointed out that two pole pieces 410 can be cut from the pole piece strip 400 at one time. The moving speed of the pole piece 410 can be adjusted by controlling the rotation speed of the first active roller 111 of the first distance adjustment unit 110. The moving speed of the pole piece 410 can be adjusted again by controlling the rotation speed of the second active roller of the second distance adjustment unit 120. By controlling the rotation speed of the active roller of the discharging unit 210, the two pole pieces 410 cut next time can quickly catch up with the two pole pieces 410 cut last time. During the cutting and spacing adjustment process of the pole pieces 410, there is no need to frequently start and stop the conveyor belt for conveying the pole pieces 410, nor is there any need to adjust the spacing between the pole pieces 410 by accelerating or decelerating the conveyor belt. The conveyor belt can always rotate at a uniform speed, thereby ensuring the utilization rate of the production line. At the same time, the wear caused by the frequent start and stop and frequent acceleration and deceleration of the conveyor belt is avoided, which is conducive to extending the service life of the conveyor belt, reducing the risk of the conveyor belt running off track, saving time for replacing and maintaining the conveyor belt, and improving production capacity. It should be noted that in order to enable the pole piece 410 to be smoothly transferred from the second spacing unit 120 to the conveyor belt, the movement speed of the pole piece 410 when it is separated from the second active roller of the second spacing unit 120 should be consistent with the rotation speed of the conveyor belt.

[0080] It should be noted that the logic programs executed by the first distance adjusting unit 110, the second distance adjusting unit 120, the discharging unit 210, the first cutting unit 220, the feeding unit 230, the second cutting unit 240, the feeding unit 250 and the conveying unit 310 when working are prior arts and will not be repeated here.

[0081] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0082] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0083] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0085] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A distance adjustment mechanism, characterized in that: include: The first spacing adjustment unit comprises a first active roller and a first driven roller; the first driven roller is arranged above the first active roller, and the axis thereof is parallel to the axis of the first active roller; the side walls of the first active roller and the first driven roller are suitable for being attached to two opposite side surfaces of the same pole piece; the first active roller can rotate, drive the first driven roller to rotate, and move the pole piece; The second distance adjusting unit is arranged on one side of the first distance adjusting unit, and includes a second active roller and a second driven roller; the second driven roller is arranged above the second active roller, and the axis thereof is parallel to the axis of the second active roller; the side walls of the second active roller and the second driven roller are suitable for fitting to the opposite sides of the same pole piece; the second active roller can rotate, drive the second driven roller to rotate, and move the pole piece.

2. The distance adjustment mechanism according to claim 1, characterized in that: The first distance adjustment unit further includes a first lifting seat, which can move up and down; the opposite ends of the first driven roller are respectively rotatably connected to the first lifting seat and can move up and down with the first lifting seat; And / or, the second distance adjusting unit further comprises a second lifting seat, and the second lifting seat can move up and down; the opposite ends of the second driven roller are respectively rotatably connected to the second lifting seat and can move up and down with the second lifting seat.

3. The distance adjustment mechanism according to claim 2, characterized in that: The first distance adjustment unit further includes a first linear drive; the output shaft of the first linear drive is connected to the first lifting seat, and can drive the first lifting seat to move up and down; And / or, the second distance adjustment unit further comprises a second linear drive; the output shaft of the second linear drive is connected to the second lifting seat, and can drive the second lifting seat to move up and down; And / or, the first pitch adjustment unit further comprises a first rotation driver; an output shaft of the first rotation driver is fixedly connected to one end of the first active roller, and is used to drive the first active roller to rotate; And / or, the second spacing adjustment unit further includes a second rotation driver; an output shaft of the second rotation driver is fixedly connected to one end of the two active rollers, for driving the second active rollers to rotate.

4. The distance adjustment mechanism according to claim 2, characterized in that: The first distance adjustment unit further includes a first bracket and a first guide assembly; the first lifting seat, the first active roller and the first driven roller are installed inside the first bracket; there are two first guide assemblies, one of which is installed between one end of the first bracket and one end of the first lifting seat, and the other is installed between the other end of the first bracket and the other end of the first lifting seat, for guiding the up and down movement of the first lifting seat; And / or, the second distance adjustment unit further includes a second bracket and a second guide assembly; the second lifting seat, the second active roller and the second driven roller are installed inside the second bracket; there are two second guide assemblies, one of which is installed between one end of the second bracket and one end of the second lifting seat, and the other is installed between the other end of the second bracket and the other end of the second lifting seat, for guiding the up and down movement of the second lifting seat.

5. The distance adjustment mechanism according to any one of claims 1 to 4, characterized in that: The first distance adjustment unit further includes a first chip removal portion; the first chip removal portion is disposed below the first active roller and contacts the side wall of the first active roller; And / or, the second distance adjusting unit further includes a second chip removing portion; the second chip removing portion is arranged below the second active roller and contacts with a side wall of the second active roller.

6. The distance adjustment mechanism according to claim 5, characterized in that: The first distance adjustment unit further includes a first chip extraction pipe; the first chip extraction pipe is arranged below the first chip removal portion and communicated with the first chip removal portion; And / or, the second distance adjustment unit further includes a second chip extraction pipe; the second chip extraction pipe is arranged below the second chip removal part and is connected to the second chip removal part.

7. A cutting device, characterized in that: include: The distance adjustment mechanism according to any one of claims 1 to 6; A discharging unit, arranged at a side of the first distance adjusting unit away from the second distance adjusting unit, and used for conveying the electrode piece; A first cutting unit, disposed on a side of the discharging unit away from the first spacing unit, for cutting pole pieces from the pole piece strip; A feeding unit, arranged at a side of the first cutting unit away from the discharging unit, for conveying the electrode strip; A second cutting unit, disposed on a side of the feeding unit away from the first cutting unit, for cutting pole pieces from the pole piece strip; A feeding unit is arranged on a side of the second cutting unit away from the feeding unit and is used for conveying the electrode strip.

8. The cutting device according to claim 7, characterized in that: The structure of the first distance adjustment unit is the same as that of the discharging unit, the feeding unit, and the feeding unit; The first cutting unit comprises: A first fixing seat; A first bearing seat is installed on the top surface of the first fixing seat, and the top surface is used to bear the pole piece strip; A first cutter is movably disposed above the top surface of the first bearing seat; The second cutting unit comprises: A second fixing seat; A second bearing seat is mounted on the top surface of the second fixing seat, and the top surface is used to bear the pole piece strip; The second cutter is movably disposed above the top surface of the second bearing seat.

9. The cutting device according to claim 8, characterized in that: The top surface of the first bearing seat is provided with a first chip leakage hole, the interior of which is a first chip collection cavity; And / or, a second chip leakage hole is formed on the top surface of the second bearing seat, and a second chip collecting chamber is formed inside.

10. A laminating machine, characterized in that: include: The cutting device according to any one of claims 7 to 9; The conveying unit is arranged on a side of the second distance adjusting unit away from the first distance adjusting unit.

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