CN212113887U

CN212113887U - Pole piece rolling, slitting and processing system

Info

Publication number: CN212113887U
Application number: CN202020964932.9U
Authority: CN
Inventors: 张良立; 龚丰登
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-12-08
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to the field of manufacturing process equipment for lithium batteries, and discloses a pole piece rolling and slitting processing system, which comprises an unwinding roller, a rolling main roller and a winding roller in sequence along the running direction of a pole piece in the processing process, wherein a slitting cutter is arranged between the rolling main roller and the winding roller; a width measuring instrument for detecting the width of the pole piece is arranged between the slitting cutter and the winding roller and is connected with the control center; the slitting cutter is provided with a cutter position control unit, and the cutter position control unit is connected with the control center. The utility model discloses a set up the width measurement appearance in roll-in system, pole piece width after strict control is cut, and the cutter position is cut in the adjustment in time and the unqualified partial pole piece of excision width has reduced manufacturing cost when improving production efficiency.

Description

Pole piece rolling, slitting and processing system

Technical Field

The utility model relates to a process equipment field of making for the lithium cell specifically relates to pole piece roll-in system of cutting processing.

Background

With the national support on new energy and the technical research and development in the field of lithium batteries, lithium ion power batteries are widely applied to the automobile industry, and in order to ensure the safety of the cruising ability of automobiles, the requirements on the energy density and the battery consistency of the lithium ion batteries are higher and higher, therefore, most manufacturers coat ceramic on the edge of a pole piece to improve the safety, then roll the coated pole roll in double rows, three rows or four rows to improve the energy density, and finally divide the pole roll into single rows by a slitting cutter to perform die cutting so as to manufacture a positive plate or a negative plate to be folded into a battery cell.

In prior art, cut after the roll-in, but not carry out strict control to the pole piece width after cutting, because the influence of factors such as the vibration of system of processing in the course of the work, minute position removal can probably take place for the cutting tool, cut the back and receive the pole piece of good through the wind-up roll and just discover to have the width inaccurate in subsequent course of the processing, for example: the problem of too wide or too narrow, at this moment, can't carry on any deviation rectification adjustment again, lead to the wasting of a large amount of materials, the processing cost is greatly raised.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the pole piece width that prior art exists and not having the control problem that leads to a large amount of wastes of material, providing the pole piece roll-in and cutting the system of processing, through set up the width measuring apparatu in the roll-in system, the pole piece width after the strict control is cut, in time the adjustment is cut the cutter position and is amputated the unqualified partial pole piece of width, has reduced manufacturing cost when improving production efficiency.

In order to achieve the purpose, the utility model provides a pole piece rolling and slitting processing system, which comprises an unwinding roller, a rolling main roller and a winding roller in sequence along the running direction of a pole piece in the processing process, wherein a slitting cutter for longitudinally cutting the pole piece along the running direction is arranged between the rolling main roller and the winding roller; a width measuring instrument for detecting the width of the pole piece is arranged between the slitting cutter and the winding roller and is connected with the control center; and the slitting cutter is provided with a cutter position control unit, and the cutter position control unit is connected with the control center.

Preferably, the slitting cutter comprises a cutter frame and one cutter head or a plurality of cutter heads arranged on the cutter frame at equal intervals.

Preferably, the number of the winding rollers is corresponding to the number of the pole pieces after being cut.

Preferably, driving rollers for controlling the running speed of the pole pieces are arranged between the unwinding roller and the rolling main roller and between the rolling main roller and the slitting cutter.

Preferably, tension control rollers for keeping the pole pieces in tension in the operation process are respectively arranged between the unwinding roller and the rolling main roller, between the rolling main roller and the slitting cutter, and between the slitting cutter and the winding roller.

Preferably, the control center is respectively connected with the unwinding roller, the driving roller, the tension control roller, the rolling main roller and the winding roller and controls respective rotating speed, and the rolling speed of the rolling main roller is consistent with the slitting speed of the slitting cutter.

Preferably, the device comprises more than one CCD detector for rectifying deviation of the pole pieces, and at least comprises a first CCD detector arranged at the output end of the unwinding roller and a second CCD detector arranged at the output end of the roller main roller.

Preferably, a laser thickness gauge for detecting the thickness of the pole piece is arranged between the second CCD detector and the slitting cutter.

Preferably, the laser thickness gauge is connected with the control center, the rolling main roller comprises a first main roller and a second main roller which are arranged oppositely, the pole piece passes through and is compacted in a roller gap between the first main roller and the second main roller, the rolling main roller is provided with a pressure control unit for adjusting the roller gap, and the pressure control unit is connected with the control center.

Preferably, a cutting knife is arranged between the width measuring instrument and the winding roller.

Through the technical scheme, the width measuring instrument is arranged in the rolling system, the width of the cut pole piece is strictly controlled, the position of the cutting tool is timely adjusted, and part of the pole piece with unqualified width is cut off, so that the production efficiency is improved, and meanwhile, the production cost is reduced.

Drawings

Fig. 1 is the utility model discloses the overall structure schematic diagram of pole piece roll-in slitting system.

Description of the reference numerals

100. Unwinding rollers; 200. rolling the main roller; 210. a first main roller; 220. a second main roller; 230. a pressure control unit; 300. a wind-up roll; 310. a width measuring instrument; 320. a cutting tool; 400. cutting a cutter; 410. a tool holder; 420. a cutter head; 430. a tool position control unit; 510. a first drive roller; 520. a second driving roller; 600. a tension control roller; 700. a control center; 810. a first CCD detector; 820. a second CCD detector; 900. a laser thickness gauge; 1000. and (6) pole pieces.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" generally refer to the inner and outer relative to the profile of the components themselves; "distal and proximal" generally refer to distance relative to the contour of the components themselves.

As shown in fig. 1, the utility model provides a pole piece rolling, slitting and processing system, which comprises an unwinding roller 100, a rolling main roller 200 and a winding roller 300 in turn along the running direction of a pole piece 1000 in the processing process, wherein a slitting cutter 400 for longitudinally cutting the pole piece 1000 along the running direction is arranged between the rolling main roller 200 and the winding roller 300; a width measuring instrument 310 for detecting the width of the pole piece is arranged between the slitting cutter 400 and the winding roller 300, and the width measuring instrument 310 is connected with a control center 700; the slitting cutter 400 is provided with a cutter position control unit 430, and the cutter position control unit 430 is connected with the control center 700. According to the above, the utility model discloses a set up the width measurement appearance in roll-in system, the pole piece width after the strict control is cut, in time the adjustment is cut the cutter position, has reduced manufacturing cost when improving production efficiency.

Specifically, as shown in fig. 1, the slitting tool 400 includes a tool holder 410 and one tool bit 420 or a plurality of tool bits 420 disposed at equal intervals on the tool holder 410. The number of the winding rollers 300 is corresponding to the number of the pole pieces after being cut. In the embodiment shown in fig. 1, the number of the cutting heads 420 is one, the pole pieces 1000 are longitudinally divided into two rows with the same width, and the two rows of pole pieces are respectively wound up by the winding rollers 300 which are respectively and correspondingly arranged.

In order to control the running speed of the pole piece 1000 in the whole processing system, driving rollers are arranged between the unwinding roller 100 and the rolling main roller 200 and between the rolling main roller 200 and the slitting cutter 400. Further, a first driving roller 510 is disposed between the unwinding roller 100 and the roller main roller 200, and a second driving roller 520 is disposed between the roller main roller 200 and the slitting knife 400. As shown in fig. 1, first drive roller 510 can be used to control the speed of travel of pole piece 1000, as well as to change the direction of travel of pole piece 1000 throughout the processing system.

While the running speed of the pole piece 1000 is ensured to be uniform and stable, in order to facilitate the pole piece to be cut by the cutting tool 400, the pole piece 1000 must be kept flat and have a certain tension in the running process, and therefore, tension control rollers 600 for keeping the tension of the pole piece in the running process are respectively arranged between the unwinding roller 100 and the rolling main roller 200, between the rolling main roller 200 and the cutting tool 400, and between the cutting tool 400 and the winding roller 300. As can be seen from fig. 1, the tension control rollers 600 are typically disposed between the various process steps of the overall processing system, including after discharge and before rolling, after rolling and before slitting, and after slitting and before receiving.

In order to keep the continuity and stability of whole processing system course of working, need control the rotational speed of foretell various running rollers, therefore, the utility model provides a processing system is cut in pole piece roll-in includes control center 700, control center 700 respectively with unreel roller 100 the driving roller tension control roller 600 the roll-in home roll 200 with wind-up roll 300 links to each other and controls respective rotational speed, the roll-in speed of roll-in home roll 200 with the speed of cutting cutter 400 keeps unanimous to the uniformity of roll-in and cutting has effectively been ensured among the whole processing system.

In the processing process, the pole piece 1000 is continuously operated, in order to prevent the position deviation of the pole piece 1000 in the operation process, the pole piece is always kept at the central position of the whole processing system, the pole piece rolling and slitting processing system further comprises more than one CCD detector for rectifying the deviation of the pole piece 1000, namely: a CCD detector. In order to improve the processing accuracy, in the embodiment shown in fig. 1, the CCD detector includes at least a first CCD detector 810 disposed at an output end of the unwinding roller 100 and a second CCD detector 820 disposed at an output end of the roller main roller 200. The above structure can effectively ensure that the arrangement position of the pole piece 1000 before and after rolling is accurate and reasonable. According to the above, the utility model discloses because the roll-in is the continuity tape transport, after the roll-in, before cutting respectively set up a tension control roller and increase the DDC detector and carry out the detection of rectifying, effectively prevented the roll-in and cut the influence of each other between two process steps.

In order to obtain the thickness information of the pole piece 1000 rolled by the rolling main roller 200 in time and adjust the pressure and the gap between the rolling main roller 200 in time, so that the pole piece 1000 rolled by the rolling main roller 200 is within the thickness range suitable for slitting, a laser thickness gauge 900 for detecting the thickness of the pole piece is arranged between the second CCD detector 820 and the slitting cutter 400.

For convenience of control, the laser thickness gauge 900 is connected to the control center 700, the rolling main roller 200 includes a first main roller 210 and a second main roller 220 which are oppositely arranged, the pole piece 1000 passes through a gap between the first main roller 210 and the second main roller 220 and is compacted, the rolling main roller 200 is provided with a pressure control unit 230 for adjusting the gap, and the pressure control unit 230 is connected to the control center 700.

In order to remove pole pieces 1000 with unqualified width dimension in time and provide convenience for subsequent processing, a cutting knife 320 is arranged between the width measuring instrument 310 and the winding roller 300. Once the width measuring instrument 310 monitors the pole piece 1000 with the width being found to be unqualified, the position of the slitting cutter 400 is adjusted by the cutter position control unit 430, and simultaneously, the part of the pole piece 1000 with the width being unqualified can be cut and removed by the cutting knife 320.

It should be noted that, the utility model provides a various roll bodies, pressure control unit, width measuring apparatu, CCD detector and laser thickness gauge are current device, and its concrete structure and theory of operation are not the utility model discloses the key that will protect, no longer give unnecessary details here.

With reference to fig. 1, the utility model provides a pole piece rolling and slitting system's concrete working process is like:

the coated pole piece 1000 is output from the unwinding roller 100, after being detected and corrected by the first CCD detector 810, under the action of the first driving roller 510, tension control is performed by the tension control roller 600, then the pole piece is compacted from the roll gap between the first main roller 210 and the second main roller 220 of the rolling main roller 200, then tension control is performed by the tension control roller 600, the rolled pole piece 1000 is detected and corrected by the second CCD detector 820 and enters the slitting cutter 400, the rolled pole piece thickness data is constantly monitored by the laser thickness gauge 900, once abnormal detection occurs, the laser thickness gauge 900 outputs a signal to the control center 700, and the control center 700 adjusts the roll gap between the first main roller 210 and the second main roller 220 by the cutter position control unit 430 arranged on the slitting cutter 400, thereby adjusting the pressure of the rolling main roller 200. The tension control roller 600 controls the tension of the rolled single-row pole rolls cut by the cutting tool 400, the rolling rollers 300 correspondingly arranged on the two rows of pole rolls are used for rolling, whether the widths of the two rows of single-row pole rolls are qualified or not is detected by the width measuring instrument 310 before rolling, once the widths are found to be abnormal, the position of the cutting tool 400 is adjusted in time, and partial pole pieces 1000 with unqualified width sizes can be further cut and removed by the cutting tool 320.

According to the above, the utility model provides a processing system is cut in pole piece roll-in through setting up the width measurement appearance in roll-in system, and the pole piece width after the strict control is cut, in time adjusts and cuts the cutter position and excises the unqualified partial pole piece of width, has reduced manufacturing cost when improving production efficiency.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The utility model discloses an in the technical conception scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, for example, can set up the quantity and set up the position that set up of driving roller and tension control roller according to the total length that the system of processing was cut in the pole piece roll-in. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. A pole piece rolling and slitting processing system sequentially comprises an unwinding roller (100), a rolling main roller (200) and a winding roller (300) along the running direction of a pole piece in the processing process, and is characterized in that a slitting cutter (400) for longitudinally cutting the pole piece (1000) along the running direction is arranged between the rolling main roller (200) and the winding roller (300);

a width measuring instrument (310) for detecting the width of the pole piece is arranged between the slitting cutter (400) and the winding roller (300), and the width measuring instrument (310) is connected with a control center (700); and a cutter position control unit (430) is arranged on the slitting cutter (400), and the cutter position control unit (430) is connected with the control center (700).

2. The pole piece rolling and slitting processing system according to claim 1, wherein the slitting cutter (400) comprises a cutter frame (410) and one cutter head (420) or a plurality of cutter heads (420) arranged at equal intervals on the cutter frame (410).

3. The pole piece rolling and slitting processing system according to claim 2, wherein the number of the winding rollers (300) is set corresponding to the number of the pole pieces after slitting.

4. The pole piece rolling and slitting processing system according to claim 1, wherein driving rollers for controlling the running speed of the pole piece (1000) are arranged between the unwinding roller (100) and the rolling main roller (200) and between the rolling main roller (200) and the slitting cutter (400).

5. The pole piece rolling and slitting processing system according to claim 4, wherein tension control rollers (600) for keeping the pole piece in tension during operation are respectively arranged between the unwinding roller (100) and the rolling main roller (200), between the rolling main roller (200) and the slitting cutter (400), and between the slitting cutter (400) and the winding roller (300).

6. The pole piece rolling and slitting processing system according to claim 5, wherein the control center (700) is connected with the unwinding roller (100), the transmission roller, the tension control roller (600), the rolling main roller (200) and the winding roller (300) respectively and controls respective rotating speeds, and the rolling speed of the rolling main roller (200) is consistent with the slitting speed of the slitting cutter (400).

7. The pole piece rolling and slitting processing system according to claim 6, comprising more than one CCD detector for rectifying deviation of the pole piece, at least a first CCD detector arranged at an output end of the unwinding roller (100) and a second CCD detector arranged at an output end of the rolling main roller (200).

8. The pole piece rolling and slitting processing system according to claim 7, wherein a laser thickness gauge (900) for measuring the thickness of the pole piece is arranged between the second CCD detector and the slitting tool (400).

9. The pole piece rolling and slitting processing system according to claim 8, wherein the laser thickness gauge (900) is connected with the control center (700), the rolling main roller (200) comprises a first main roller (210) and a second main roller (220) which are oppositely arranged, the pole piece (1000) passes through a roller gap between the first main roller (210) and the second main roller (220) and is compacted, a pressure control unit (230) for adjusting the roller gap is arranged on the rolling main roller (200), and the pressure control unit (230) is connected with the control center (700).

10. The pole piece rolling and slitting processing system according to claim 1, wherein a cutting knife (320) is arranged between the width measuring instrument (310) and the winding roller (300).