Pole piece rolling device and pole piece production equipment
By introducing position sensors and thickness sensors into the pole sheet rolling device, the upper and lower roll gaps are automatically adjusted, and the automation and accuracy problems caused by manual adjustment are solved, and high-quality pole sheets are efficiently produced.
Patent Information
- Application Number
- CN202422185343.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The existing pole sheet roller pressing device requires manual adjustment of the roller distance, resulting in low degree of roll press automation and low accuracy, and easy to cause powder loss and breakage caused by thickness drop, reducing production efficiency and quality.
The position sensor and thickness sensor are combined with the lifting and lower adjustment component to automatically adjust the distance between the upper and lower rolls, and adjust the roller pressure gap in real time according to the thickness of the pole sheet to avoid powder loss and breakage.
It improves the accuracy and automation of the polar sheet rolling, reduces powder loss and fracture, and improves production efficiency and quality.
Smart Images
Figure CN223210178U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of pole piece production technology, and in particular to a pole piece rolling device and pole piece production equipment. Background Art
[0002] Under the same volume, the higher the electrode density, the more active material the electrode can accommodate, so that the energy density and capacity of the battery cell are greater, and the density of the battery electrode can directly affect the energy density of the battery cell. The electrode can reduce the porosity and increase the density of the electrode by rolling. Therefore, in the electrode production process, the rolling process is indispensable for the purpose of increasing the electrode density, improving the electrode conductivity and enhancing the mechanical strength of the electrode. However, in the intermittently coated electrode, the electrode segment thickness in the coated area is larger, and the electrode segment thickness in the uncoated area is smaller, so that there is a thickness difference in the electrode segment at the connection between the uncoated area and the coated area, which makes the electrode segment here prone to powder loss, breakage or even fracture during rolling. At the same time, the electrode segment thickness in the uncoated area is thinner, and it is easy to be damaged or even fractured during rolling, which causes waste of electrode and greatly increases production costs.
[0003] Existing technologies, such as patent CN219151158U, propose a lithium battery electrode sheet rolling roller machine, which can manually adjust the distance between the two rollers to avoid the rolling roller machine rolling the electrode segment at the connection between the uncoated area and the coated area, causing the electrode segment here to easily fall off, break or even break, which is an undesirable process phenomenon. The rolling roller machine can improve the production quality of the electrode sheet and reduce production costs.
[0004] However, the above-mentioned rolling roller machine requires manual adjustment of the distance between the two rollers, which makes the rolling automation degree of the rolling roller machine low, thereby reducing the production efficiency of the rolling roller machine; in addition, the distance between the two rollers is adjusted manually, which makes the rolling accuracy of the rolling roller machine low, and thus it is easy for the rolling roller machine to roll the pole segments with thickness differences. At the same time, the pole segments that have been rolled still have some larger thicknesses, which greatly reduces the production efficiency and production quality of the pole segments. Utility Model Content
[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a pole piece rolling device and pole piece production equipment that can effectively improve pole piece production efficiency and production quality.
[0006] The purpose of this disclosure is achieved through the following technical solutions:
[0007] A pole piece rolling device, comprising
[0008] frame;
[0009] The pole piece rolling device further comprises:
[0010] A movable frame assembly, the movable frame assembly comprising a first movable frame and a second movable frame, the first movable frame and the second movable frame being disposed on the frame, the first movable frame and the second movable frame being slidably connected to the frame, and the first movable frame and the second movable frame being disposed opposite each other;
[0011] an upper roller, the upper roller being rotatably connected to the first movable frame;
[0012] a lower roller, the lower roller being rotatably connected to the second movable frame, and a rolling zone being formed between the upper roller and the lower roller for rolling the electrode sheet; and
[0013] The pressure self-regulating mechanism includes a position sensor, a thickness sensor and a lifting and adjusting component, the lifting and adjusting component is installed and fixed on the second movable frame, and the power output end of the lifting and adjusting component is connected to the first movable frame to drive and adjust the distance between the first movable frame and the second movable frame; the position sensor is arranged on the frame, the position sensor is electrically connected to the control end of the lifting and adjusting component, the sensing end of the position sensor is in contact with the upper roller or the lower roller, and the position sensor is used to detect the position of the electrode sheet rolled together by the upper roller and the lower roller; the thickness sensor is arranged on the frame, the signal output end of the thickness sensor is electrically connected to the signal receiving end of the position sensor, the electrode sheet passes through the thickness sensor and the rolling zone in sequence, the sensing end of the thickness sensor is arranged toward the electrode sheet, and the thickness sensor is used to detect the thickness of the electrode sheet.
[0014] In one embodiment, the position sensor includes a sensing component and a connecting member, the sensing component includes a scroll wheel and an encoder, the connecting member is connected to the frame, and the scroll wheel is rotatably connected to the connecting member, and the scroll wheel is in contact with the upper roller, the encoder is installed on the connecting member, and the input end of the encoder is coaxially connected to the connecting member with the scroll wheel.
[0015] In one embodiment, the lifting and lowering adjustment assembly includes an upper wedge block, a lower wedge block and a driving member, the upper wedge block is fixed to the first movable frame, the lower wedge block is slidably connected to the second movable frame, the upper wedge block is formed with a first wedge surface, the lower wedge block is formed with a second wedge surface, the first wedge surface and the second wedge surface abut each other, the driving member is installed and fixed to the second movable frame, the power output end of the driving member is connected to the lower wedge block to drive the lower wedge block to reciprocate in the first direction, and the encoder is electrically connected to the control end of the driving member.
[0016] In one embodiment, the driving member includes a driving motor, a reducer and a screw rod. The power output end of the driving motor is connected to the power input end of the reducer. The power output end of the reducer is fixedly connected to the screw rod to drive the screw rod to rotate relative to the reducer. The reducer is installed and fixed to the second movable frame. The lower wedge block is provided with a threaded hole. The screw rod is passed through the threaded hole and is screwed to the lower wedge block.
[0017] In one embodiment, the driving member also includes a first sliding guide rail, which is installed and fixed on the second movable frame. The first sliding guide rail is slidably connected to the lower wedge block. The first sliding guide rail is formed with a guide flange, and the lower wedge block is also provided with a limiting slide groove, and the guide flange is slidably connected to the limiting slide groove.
[0018] In one embodiment, the frame includes a frame body and a mounting frame, the mounting frame is fixedly connected to the frame body, the thickness sensor is fixedly connected to the frame body, and the first movable frame and the second movable frame are both slidably connected to the frame body; the mounting frame is formed with a pole piece penetration area; the thickness sensor includes a transmitter and a receiver, the transmitter and the receiver are both installed on the mounting frame, and the sensing area between the transmitter and the receiver is connected to the pole piece penetration area.
[0019] In one embodiment, the rack further includes a second sliding guide rail, which is fixed to the rack body, and a guide surface of the second sliding guide rail is slidably connected to the first movable rack.
[0020] In one embodiment, the rack further includes a third sliding guide rail, which is fixed to the rack body, and a guide surface of the third sliding guide rail is slidably connected to the second movable rack.
[0021] In one embodiment, the pole piece rolling device further includes a height adjustment drive member, which is mounted and fixed on the frame, and a power output end of the height adjustment drive member is connected to the second movable frame to drive the second movable frame to rise or fall relative to the frame.
[0022] In one embodiment, the pole piece rolling device further includes a shock absorbing member, which is mounted and fixed on the second movable frame, and a shock absorbing end of the shock absorbing member is arranged toward the first movable frame.
[0023] A pole piece production device comprises the pole piece rolling device described in any one of the above embodiments.
[0024] Compared with the prior art, the present disclosure has at least the following advantages:
[0025] The above-mentioned pole piece rolling device, since the lifting and adjusting component is installed and fixed on the second movable frame, the power output end of the lifting and adjusting component is connected to the first movable frame to drive and adjust the distance between the first movable frame and the second movable frame, the position sensor and the thickness sensor are arranged on the frame, the position sensor and the thickness sensor are electrically connected to the control end of the lifting and adjusting component, the sensing end of the position sensor is in contact with the upper roller or the lower roller, the position sensor is used to detect the position of the pole piece when the upper roller and the lower roller jointly roll the pole piece; the thickness sensor is used to detect the thickness of the pole piece. When the thickness sensor detects a pole piece with a thickness difference, the position sensor transmits a signal to the control end of the lifting and adjusting component. When the pole piece with the thickness difference is about to pass through the upper roller, the position sensor transmits a signal to the control end of the lifting and adjusting component. When the upper roller is in the common rolling position with the lower roller, the lifting and adjusting component drives the upper roller to rise relative to the lower roller, that is, to increase the rolling gap between the upper roller and the lower roller, thereby making the distance between the upper roller and the lower roller adjustable, so as to avoid the undesirable process phenomenon of powder loss, damage or even breakage of the electrode during the rolling process; similarly, when the electrode segment with a thickness difference passes through the common rolling position of the upper roller and the lower roller, the lifting and adjusting component drives the upper roller to descend relative to the lower roller, so that the rolling gap between the upper roller and the lower roller is adjusted to return to the preset value. Compared with traditional manual adjustment, the rolling accuracy and timeliness of the electrode rolling device are improved, and the degree of automation of the rolling device is also improved, which greatly improves the production efficiency and production quality of the electrode. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0027] Figure 1 A schematic diagram of a partial structure of a pole piece rolling device according to an embodiment;
[0028] Figure 2 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0029] Figure 3 for Figure 2 A partially enlarged schematic diagram of a pole piece rolling device is shown;
[0030] Figure 4 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0031] Figure 5 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0032] Figure 6 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0033] Figure 7 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0034] Figure 8 for Figure 1 The exploded schematic diagram of the partial structure of the pole piece rolling device shown;
[0035] Figure 9 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown;
[0036] Figure 10 for Figure 1 Another partial structural schematic diagram of the pole piece rolling device shown. DETAILED DESCRIPTION
[0037] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.
[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0040] like Figures 1 to 10As shown, the pole piece rolling device 10 in one embodiment includes a frame 100, a movable frame assembly 200, an upper roller 300, a lower roller 400 and a pressure self-adjusting mechanism 500, the movable frame assembly 200 includes a first movable frame 210 and a second movable frame 220, the first movable frame 210 and the second movable frame 220 are arranged on the frame 100, the first movable frame 210 and the second movable frame 220 are both slidably connected to the frame 100, and the first movable frame 210 and the second movable frame 220 are arranged opposite to each other; the upper roller 300 is rotatably connected to the first movable frame 210; the lower roller 400 is rotatably connected to the second movable frame The movable frame 220 is rotatably connected, and a rolling zone is formed between the upper roller 300 and the lower roller 400 to roll the pole piece; the pressure self-adjusting mechanism 500 includes a position sensor 510, a thickness sensor 530 and a lifting and adjusting component 520, and the lifting and adjusting component 520 is installed and fixed on the second movable frame 220. The power output end of the lifting and adjusting component 520 is connected to the first movable frame 210 to drive and adjust the distance between the first movable frame 210 and the second movable frame 220, so that the lifting and adjusting component 520 can adjust the pressure between the upper roller 300 and the lower roller 400.
[0041] like Figures 1 to 10 As shown, further, a position sensor 510 is provided on the frame 100, the position sensor 510 is electrically connected to the control end of the lifting adjustment component 520, the sensing end of the position sensor 510 is in contact with the upper roller 300 or the lower roller 400, the position sensor 510 is used to detect the position of the rolling electrode shared by the upper roller 300 and the lower roller 400, the thickness sensor 530 is provided on the frame, the signal output end of the thickness sensor 530 is electrically connected to the signal receiving end of the position sensor 510, the electrode passes through the thickness sensor 530 and the rolling zone in sequence, the sensing end of the thickness sensor 530 is arranged toward the electrode, and the thickness sensor The sensor 530 is used to detect the thickness of the electrode. When the thickness sensor 530 detects a electrode segment with a thickness difference, the position sensor 510 transmits a signal to the control end of the lifting and adjusting component 520. When the electrode segment with a thickness difference is about to pass through the joint rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to rise relative to the lower roller 400, that is, to increase the rolling gap between the upper roller 300 and the lower roller 400, thereby making the distance between the upper roller 300 and the lower roller 400 adjustable, so as to avoid the adverse process phenomenon of powder loss, damage or even breakage of the electrode during the rolling process.
[0042] like Figures 1 to 10As shown, further, after the pole piece with a thickness difference passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to descend relative to the lower roller 400, so that the rolling gap between the upper roller 300 and the lower roller 400 is adjusted to return to the preset value. Compared with traditional manual adjustment, the rolling accuracy and timeliness of the pole piece rolling device 10 are improved, and the rolling automation degree of the pole piece rolling device 10 is also improved, which greatly improves the production efficiency and production quality of the pole piece.
[0043] In this embodiment, when the thickness sensor 530 detects a pole piece with a thickness difference, the position sensor 510 transmits a signal to the control end of the lifting and adjusting component 520. When the pole piece with the thickness difference is about to pass through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to rise relative to the lower roller 400; and after the pole piece with the thickness difference passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to descend relative to the lower roller 400, so that the rolling gap between the upper roller 300 and the lower roller 400 is adjusted to return to the preset value to roll the pole piece.
[0044] It should be noted that the method in which the control end of the lifting and adjusting component 520 controls the action of the lifting and adjusting component 520 according to the sensing signals of the position sensor 510 and the thickness sensor belongs to the prior art. This application only protects the positional connection relationship between the control end of the lifting and adjusting component 520, the position sensor 510 and the thickness sensor. For example, based on the sensing signals from the position sensor 510 and the thickness sensor 530, the control end of the lifting and adjusting assembly 520 calculates the time point and time period when the electrode segment with a thickness difference passes through the joint rolling position of the upper roller 300 and the lower roller 400. Specifically, when the electrode segment with a thickness difference is about to pass through the joint rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting assembly 520 drives the upper roller 300 to rise relative to the lower roller 400. After the electrode segment with a thickness difference passes through the joint rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting assembly 520 drives the upper roller 300 to descend relative to the lower roller 400, adjusting the rolling gap between the upper roller 300 and the lower roller 400 to return to a preset value. The thickness sensor 530 indirectly calculates the thickness of the electrode segment by measuring the transmission or reflection of the light signal on the electrode segment. The position sensor 510 ensures the accurate position of the electrode segment on the production line to prevent offset or misalignment.
[0045] In the above-mentioned pole piece rolling device 10, since the lifting and adjusting component 520 is installed and fixed on the second movable frame 220, the power output end of the lifting and adjusting component 520 is connected to the first movable frame 210 to drive and adjust the distance between the first movable frame 210 and the second movable frame 220, the position sensor 510 and the thickness sensor 530 are arranged on the frame 100, and the position sensor 510 and the thickness sensor 530 are both electrically connected to the control end of the lifting and adjusting component 520. The sensing end of the position sensor 510 is in contact with the upper roller 300 or the lower roller 400. The position sensor 510 is used to detect the position of the pole piece rolled together by the upper roller 300 and the lower roller 400; the thickness sensor 530 is used to detect the thickness of the pole piece. When the thickness sensor 530 detects a pole piece with a thickness difference, the position sensor 510 transmits a signal to the control end of the lifting and adjusting component 520. When the segment passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to rise relative to the lower roller 400, that is, increases the rolling gap between the upper roller 300 and the lower roller 400, thereby making the distance between the upper roller 300 and the lower roller 400 adjustable, so as to avoid the adverse process phenomenon of powder loss, breakage or even fracture of the electrode during the rolling process; similarly, when the electrode segment with a thickness difference passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to descend relative to the lower roller 400, so that the rolling gap between the upper roller 300 and the lower roller 400 is adjusted to a preset value. Compared with traditional manual adjustment, the rolling accuracy and timeliness of the electrode rolling device 10 are improved, and the rolling automation degree of the electrode rolling device 10 is also improved, thereby greatly improving the production efficiency and production quality of the electrode.
[0046] Furthermore, the thickness difference determination of the electrode segment can be flexibly set according to the thickness difference between the average thickness of the coated area and the average thickness of the uncoated area of different types of electrode segments, which is not specifically limited here.
[0047] like Figures 1 to 5 As shown, in one embodiment, the position sensor 510 includes a sensing component 511 and a connecting member 512, the sensing component 511 includes a scroll wheel 511a and an encoder 511b, the connecting member 512 is connected to the frame 100, and the scroll wheel 511a is rotatably connected to the connecting member 512, and the scroll wheel 511a is in contact with the upper roller 300, the encoder 511b is installed on the connecting member 512, and the input end of the encoder 511b is coaxially connected to the connecting member 512 with the scroll wheel 511a, so that when the upper roller 300 drives the scroll wheel 511a to rotate, the encoder 511b can detect the position of the pole segment by measuring the rolling distance of the scroll wheel 511a.
[0048] like Figures 1 to 5As shown, in one embodiment, the connecting member 512 is rotatably connected to the frame 100, so that the connecting member 512 can drive the sensing component 511 to move relative to the frame 100, so that when the upper roller 300 rises or falls relative to the frame 100, the upper roller 300 can drive the sensing component 511 to move relative to the frame 100, ensuring that the upper roller 300 and the rolling wheel 511a abut against each other, thereby enabling the sensing component 511 to detect the position of the pole piece through the upper roller 300.
[0049] like Figures 1 to 7 As shown, in one embodiment, the lifting adjustment assembly 520 includes an upper wedge block 521, a lower wedge block 522 and a driving member 523. The upper wedge block 521 is fixed to the first movable frame 210, and the lower wedge block 522 is slidably connected to the second movable frame 220. The upper wedge block 521 is formed with a first wedge surface 521a, and the lower wedge block 522 is formed with a second wedge surface 522a. The first wedge surface 521a and the second wedge surface 522a abut against each other. The driving member 523 is installed and fixed to the second movable frame 220. The power output end of the driving member 523 is connected to the lower wedge block 522 to drive the lower wedge block 522 to reciprocate in the first direction X, so that when the driving member 523 drives the higher end of the lower wedge block 522 toward the upper wedge block 521 in the first direction X, When the higher end slides, the lower wedge block 522 can push the first movable frame 210 to rise relative to the second movable frame 220, thereby increasing the distance between the upper roller 300 and the lower roller 400; and when the driving member 523 drives the lower end of the lower wedge block 522 to slide toward the lower end of the upper wedge block 521 in the first direction X, the first movable frame 210 can descend relative to the second movable frame 220 by its own weight, thereby reducing the distance between the upper roller 300 and the lower roller 400; the encoder 511b is electrically connected to the control end of the driving member 523 so that the encoder 511b can transmit a signal to the driving member 523, and the driving member 523 drives the lower wedge block 522 to slide relative to the second movable frame 220 in the first direction X after receiving the signal.
[0050] like Figures 1 to 8As shown, in one embodiment, the driving member 523 includes a driving motor 5231, a reducer 5232 and a screw rod 5233. The power output end of the driving motor 5231 is connected to the power input end of the reducer 5232, so that the reducer 5232 can increase the output torque of the driving motor 5231; the power output end of the reducer 5232 is fixedly connected to the screw rod 5233 to drive the screw rod 5233 to rotate relative to the reducer 5232. The reducer 5232 is installed and fixed to the second movable frame 220. The lower wedge block 522 is provided with a threaded hole 522b. The screw rod 5233 is inserted into the threaded hole 522b and is screwed to the lower wedge block 522, so that the driving motor 5231 can drive the lower wedge block 522 to reciprocate relative to the second movable frame 220 in the first direction X.
[0051] like Figures 1 to 8 As shown, in one embodiment, the driving member 523 also includes a first sliding guide rail 5234, which is installed and fixed on the second movable frame 220, and the first sliding guide rail 5234 is slidingly connected to the lower wedge block 522, and the first sliding guide rail 5234 is formed with a first sliding guide flange 5234a, and the lower wedge block 522 is also provided with a limiting slide groove 522c, and the first sliding guide flange 5234a is slidingly connected to the limiting slide groove 522c to prevent the screw rod 5233 from driving the lower wedge block 522 to rotate with the screw rod 5233 as the rotating axis, so that the lower wedge block 522 can reciprocate along the guide path of the first sliding guide rail 5234 relative to the second movable frame 220.
[0052] like Figures 9 and 10As shown, in one embodiment, the frame includes a frame 110 and a mounting frame 140, the mounting frame 140 is fixedly connected to the frame 110, the thickness sensor 530 is fixedly connected to the frame 110, and the first movable frame and the second movable frame 220 are both slidably connected to the frame 110; the mounting frame 140 is formed with a pole piece insertion area 141; the thickness sensor 530 includes a transmitter 531 and a receiver 532, both of which are mounted on the mounting frame 140, and the sensing area 533 between the transmitter 531 and the receiver 532 is connected to the pole piece insertion area 141, so that the pole piece passes through the sensing area 533, and the thickness sensor 530 can detect the thickness of the pole piece. In this embodiment, the thickness sensor 530 is a through-beam fiber optic sensor, the transmitter 531 is a transmitting optical fiber, and the receiver 532 is a receiving optical fiber. The transmitting optical fiber transmits an optical signal of a specific wavelength. When the optical signal passes through or illuminates the electrode to be detected, the intensity, reflection, transmission and other characteristics of the light will change according to the state of the electrode. The receiving optical fiber receives the optical signal after passing through the electrode and transmits it to the photoelectric conversion device at the control end of the lifting and adjusting component 520. The photoelectric conversion device converts the optical signal into an electrical signal. The control end of the lifting and adjusting component 520 can determine the existence, position, thickness, integrity and other parameters of the electrode by analyzing and processing the electrical signal. It should be noted that the method of detecting the thickness of the electrode by the thickness sensor 530 belongs to the prior art, and this application only protects the connection relationship and position relationship of the various components of the thickness sensor 530.
[0053] like Figure 10 As shown, further, the mounting frame 140 is fixedly connected to the frame body 110 by screws, and the mounting frame 140 is arranged adjacent to the rolling area, and the pole piece passes through the pole piece penetration area 141, the sensing area 531 and the rolling area in sequence.
[0054] like Figures 1 to 9 As shown, in one embodiment, the rack 100 further includes a second sliding guide rail 120, which is installed and fixed to the rack body 110, and the guide surface of the second sliding guide rail 120 is slidably connected to the first movable rack 210, so that the first movable rack 210 can slide along the guide surface of the second sliding guide rail 120 relative to the rack body 110.
[0055] like Figures 1 to 9 As shown, in one embodiment, the rack 100 further includes a third sliding guide rail 130, which is installed and fixed to the rack body 110, and the guide surface of the third sliding guide rail 130 is slidably connected to the second movable rack 220, so that the second movable rack 220 can slide along the guide surface of the third sliding guide rail 130 relative to the rack body 110.
[0056] like Figure 1As shown, in one embodiment, the pole piece rolling device 10 also includes a height adjustment drive member 700, which is installed and fixed on the frame 100, and the power output end of the height adjustment drive member 700 is connected to the second movable frame 220 to drive the second movable frame 220 to rise or fall relative to the frame 100, so that the height adjustment drive member 700 can adjust the height position of the rolling zone, and at the same time can also increase the pressure between the upper roller 300 and the lower roller 400, thereby improving the rolling effect of the pole piece rolling device 10.
[0057] like Figures 1 to 7 As shown, in one embodiment, the pole piece rolling device 10 further includes a shock absorber 600, which is mounted and fixed on the second movable frame 220, and the shock absorber end of the shock absorber 600 is arranged toward the first movable frame 210 to buffer the pressure between the upper roller 300 and the lower roller 400, so as to avoid excessive impact force between the pole piece and the upper roller 300 and the lower roller 400 when the upper roller 300 and the lower roller 400 are rolling the pole piece, thereby preventing the pole piece from being broken due to excessive impact force between the pole piece and the upper roller 300 and the lower roller 400.
[0058] Compared with the prior art, the present disclosure has at least the following advantages:
[0059] In the above-mentioned electrode production equipment, since the lifting and adjusting component 520 is installed and fixed on the second movable frame 220, the power output end of the lifting and adjusting component 520 is connected to the first movable frame 210 to drive and adjust the distance between the first movable frame 210 and the second movable frame 220, the position sensor 510 and the thickness sensor 530 are arranged on the frame 100, and the position sensor 510 and the thickness sensor 530 are both electrically connected to the control end of the lifting and adjusting component 520, and the sensing end of the position sensor 510 is in contact with the upper roller 300 or the lower roller 400. The position sensor 510 is used to detect the position of the electrode sheet rolled together by the upper roller 300 and the lower roller 400; the thickness sensor 530 is used to detect the thickness of the electrode sheet. When the thickness sensor 530 detects a electrode segment with a thickness difference, the position sensor 510 transmits a signal to the control end of the lifting and adjusting component 520. When the segment passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to rise relative to the lower roller 400, that is, to increase the rolling gap between the upper roller 300 and the lower roller 400, thereby making the distance between the upper roller 300 and the lower roller 400 adjustable, so as to avoid the undesirable process phenomenon of powder loss, damage or even breakage of the electrode during the rolling process; similarly, when the electrode segment with a thickness difference passes through the common rolling position of the upper roller 300 and the lower roller 400, the lifting and adjusting component 520 drives the upper roller 300 to descend relative to the lower roller 400, so that the rolling gap between the upper roller 300 and the lower roller 400 is adjusted to a preset value. Compared with traditional manual adjustment, the rolling accuracy and timeliness of the electrode rolling device 10 are improved, and the rolling automation degree of the electrode rolling device 10 is also improved, thereby greatly improving the production efficiency and production quality of the electrode.
[0060] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.
Claims
1. A pole piece rolling device, comprising frame; It is characterized in that The pole piece rolling device further comprises: A movable frame assembly, the movable frame assembly comprising a first movable frame and a second movable frame, the first movable frame and the second movable frame being disposed on the frame, the first movable frame and the second movable frame being slidably connected to the frame, and the first movable frame and the second movable frame being disposed opposite each other; an upper roller, the upper roller being rotatably connected to the first movable frame; a lower roller, the lower roller being rotatably connected to the second movable frame, and a rolling zone being formed between the upper roller and the lower roller for rolling the electrode sheet; and A pressure self-regulating mechanism, the pressure self-regulating mechanism includes a position sensor, a thickness sensor and a lifting and adjusting component; the lifting and adjusting component is installed and fixed on the second movable frame, and the power output end of the lifting and adjusting component is connected to the first movable frame to drive and adjust the distance between the first movable frame and the second movable frame; the position sensor is arranged on the frame, the position sensor is electrically connected to the control end of the lifting and adjusting component, the sensing end of the position sensor is in contact with the upper roller or the lower roller, and the position sensor is used to detect the position of the electrode sheet rolled together by the upper roller and the lower roller; the thickness sensor is arranged on the frame, the signal output end of the thickness sensor is electrically connected to the control end of the lifting and adjusting component, and the thickness sensor is used to detect the thickness of the electrode sheet.
2. The pole piece rolling device according to claim 1, characterized in that: The position sensor includes a sensing component and a connecting member, the sensing component includes a scroll wheel and an encoder, the connecting member is connected to the frame, and the scroll wheel is rotatably connected to the connecting member, and the scroll wheel is in contact with the upper roller, the encoder is installed on the connecting member, and the input end of the encoder is coaxially connected to the connecting member with the scroll wheel.
3. The pole piece rolling device according to claim 2, characterized in that: The lifting and lowering adjustment assembly includes an upper wedge block, a lower wedge block and a driving member, the upper wedge block is fixed to the first movable frame, the lower wedge block is slidably connected to the second movable frame, the upper wedge block is formed with a first wedge surface, the lower wedge block is formed with a second wedge surface, the first wedge surface and the second wedge surface abut against each other, the driving member is installed and fixed to the second movable frame, the power output end of the driving member is connected to the lower wedge block to drive the lower wedge block to reciprocate in the first direction, and the encoder is electrically connected to the control end of the driving member.
4. The pole piece rolling device according to claim 3, characterized in that: The driving component includes a driving motor, a reducer and a screw rod. The power output end of the driving motor is connected to the power input end of the reducer. The power output end of the reducer is fixedly connected to the screw rod to drive the screw rod to rotate relative to the reducer. The reducer is installed and fixed to the second movable frame. The lower wedge block is provided with a threaded hole. The screw rod is passed through the threaded hole and is screwed to the lower wedge block.
5. The pole piece rolling device according to claim 4, characterized in that: The driving member also includes a first sliding guide rail, which is installed and fixed on the second movable frame. The first sliding guide rail is slidably connected to the lower wedge block. The first sliding guide rail is formed with a guide flange, and the lower wedge block is also provided with a limiting slide groove. The guide flange is slidably connected to the limiting slide groove.
6. The pole piece rolling device according to claim 1, characterized in that: The frame includes a frame body and a mounting frame, the mounting frame is fixedly connected to the frame body, the thickness sensor is fixedly connected to the frame body, and the first movable frame and the second movable frame are both slidably connected to the frame body; the mounting frame is formed with a pole piece penetration area; the thickness sensor includes a transmitter and a receiver, the transmitter and the receiver are both installed on the mounting frame, and the sensing area between the transmitter and the receiver is connected to the pole piece penetration area.
7. The pole piece rolling device according to claim 6, characterized in that: The frame further includes a second sliding guide rail, which is fixed to the frame body, and a guide surface of the second sliding guide rail is slidably connected to the first movable frame.
8. The pole piece rolling device according to claim 7, characterized in that: The frame further includes a third sliding guide rail, which is fixed to the frame body, and a guide surface of the third sliding guide rail is slidably connected to the second movable frame.
9. The pole piece rolling device according to claim 1, characterized in that: The pole piece rolling device further includes a height adjustment driving member, which is fixedly mounted on the frame, and a power output end of the height adjustment driving member is connected to the second movable frame to drive the second movable frame to rise or fall relative to the frame; and / or, The pole piece rolling device further includes a shock absorbing member, which is mounted and fixed on the second movable frame, and a shock absorbing end of the shock absorbing member is arranged toward the first movable frame.
10. A pole piece production device, characterized in that: The pole piece rolling device comprises the pole piece rolling device according to any one of claims 1 to 9.