WO2021012773A1 - Novel non-stretching precise roller press - Google Patents

Novel non-stretching precise roller press Download PDF

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Publication number
WO2021012773A1
WO2021012773A1 PCT/CN2020/091944 CN2020091944W WO2021012773A1 WO 2021012773 A1 WO2021012773 A1 WO 2021012773A1 CN 2020091944 W CN2020091944 W CN 2020091944W WO 2021012773 A1 WO2021012773 A1 WO 2021012773A1
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WIPO (PCT)
Prior art keywords
roller press
electrode sheet
shaping
soft
thickness
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PCT/CN2020/091944
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French (fr)
Chinese (zh)
Inventor
杨志明
周华民
陶波
张云
黄志高
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深圳市信宇人科技股份有限公司
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Publication of WO2021012773A1 publication Critical patent/WO2021012773A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling

Definitions

  • the invention relates to a roller press for compacting lithium battery pole pieces, in particular to a new type of non-extension precision roller press.
  • the present invention provides the society with a new type of non-extension precision roller press which can effectively prevent the lithium battery pole pieces from extending during the rolling process.
  • the technical solution of the present invention is to provide a new type of non-extension precision roller press, an unwinding mechanism and a winding mechanism, between the unwinding mechanism and the winding mechanism, a preheating mechanism is sequentially arranged from the unwinding mechanism A roller press, a soft roller press and a shaping roller press, wherein the preheating roller press compresses the electrode sheet under heating, and the compression ratio of the preheating roller press is 30%-40%;
  • the movable roller of the soft roller press is located on the soft rubber pad, and the electrode sheet is compressed by the soft rubber pad.
  • the compression ratio of the soft roller press is 30%-40%;
  • the electrode sheet is shaped and compressed to ensure that the thickness of the electrode sheet is consistent, and the compression ratio of the shaping roller press is 20%-40%.
  • the preheating roller press and the soft roller press are provided with a first thickness gauge, and the first thickness gauge measures the measured electrode sheet compressed by the preheating roller press The thickness value of is fed back to the control circuit, and the control circuit adjusts the roll gap of the preheating roller press according to the measured thickness value to ensure that the thickness of the electrode sheet after preheating and rolling is within the first predetermined thickness range.
  • a second thickness gauge is provided on the soft roll press and the shaping roll press, and the second thickness gauge measures the thickness of the electrode sheet after being compressed by the soft roll press The value is fed back to the control circuit, and the control circuit adjusts the roll gap of the soft roll press according to the measured thickness value to ensure that the thickness of the electrode sheet after the soft roll press is within the second predetermined range.
  • a third thickness gauge is provided between the shaping roller press and the winding mechanism, and the third thickness gauge measures the measured value of the electrode sheet compressed by the shaping roller press.
  • the thickness value is fed back to the control circuit, and the control circuit adjusts the roll gap of the shaping roller press according to the measured thickness value to ensure that the thickness of the electrode sheet after shaping and rolling is within the third predetermined range.
  • the roll diameter of the preheating roller press is 400mm, and the preheating roller press is 50t-60t.
  • the heating temperature of the preheating roller press is selected between 120°C and 130°C.
  • the roll diameter of the soft roll press is 400mm, and the soft roll press pressure is 80t-90t.
  • the roller diameter of the shaping roller press is 800mm, and the roller diameter of the shaping roller is 180t-200t.
  • the first thickness gauge, the second thickness gauge and the first thickness gauge are laser thickness gauges.
  • the present invention adopts multi-stage and different methods and different compression ratios to compress the electrode sheet, it can basically achieve no stretching effect on the electrode sheet, and therefore, does not cause the active material on both sides of the electrode to be weakly bonded to the substrate , There are problems such as position movement and deformation.
  • Figure 1 is a schematic plan view of an embodiment of the present invention.
  • Fig. 2 is a schematic structural diagram of another embodiment of the soft roller press in Fig. 1.
  • Fig. 3 is a schematic diagram of the preheating rolling effect in Fig. 1.
  • Figure 4 is a schematic diagram of the soft rolling effect in Figure 1.
  • Fig. 5 is a schematic diagram of the effect of shaping and rolling in Fig. 1.
  • Figures 1 to 5 show a new type of non-extension precision roller press, the unwinding mechanism 1 and the winding mechanism 2, between the unwinding mechanism 1 and the winding mechanism 2.
  • the preheating roller press 3 compresses the electrode sheet 6 under heating
  • the compression ratio of the preheating roller press 3 is 30%-40%;
  • the movable roller 41 of the soft roller press 4 is located on the soft rubber pad 42, and the electrode sheet 6 is compressed by the soft rubber pad 42,
  • the compression ratio of the soft roller press 4 is 30%-40%;
  • the shaping roller press 5 performs shaping and compression on the electrode sheet 6 to ensure that the thickness of the electrode sheet 6 is consistent.
  • the compression ratio of 5 is 20%-40%.
  • the pressing roller of the preheating roller press 3 may be an electric heating roller or an oil heating roller.
  • the present invention and the compression of the electrode sheet with different compression ratios can basically achieve no stretching effect on the electrode sheet. Therefore, it will not cause the active material on both sides of the electrode to be weakly bonded to the base material, causing problems such as position shift and deformation. . Through multi-stage grading and gradual rolling, it can effectively reduce the horizontal and vertical extension of the pole piece during the rolling process, and avoid the wrinkles and other defects caused by the extension of the pole piece.
  • the soft roller press 4 has two different structural forms. The first one is as shown in FIG. 1.
  • the soft rubber pad 42 is a circulating belt-like structure 43, which is different from the soft roller press 4
  • the direction of rotation of the upper roller is the same; the second is that the soft rubber pad 42 has a single-belt structure 44, as shown in Figure 2, the soft rubber pad 42 is placed from one side to the other side, and the other side is retracted.
  • the length of the soft rubber pad 42 is preferably greater than or equal to the length of the electrode sheet 6, so as to ensure that the soft rubber pad 42 can always be cushioned on the roll gap of the soft roller press 4 during the rolling process of the electrode sheet 6 between.
  • the advantage of using the soft rubber pad 4 is that the line contact of the roller press can be changed to surface contact to prevent the spread of the electrode sheet 6 from occurring.
  • the soft rubber pad 4 in the present invention can be made of PET or PPO plastic.
  • the preheating roller press 3 and the soft roller press 4 are provided with a first thickness gauge 31, and the first thickness gauge 31 measures the measured value compressed by the preheating roller press 3
  • the thickness value of the electrode sheet 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the preheating roller press 3 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after preheating and rolling is at the first predetermined thickness.
  • the control circuit 7 adjusts the roll gap of the preheating roller press 3 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after preheating and rolling is at the first predetermined thickness.
  • the soft roller press 4 and the shaping roller press 5 are provided with a second thickness gauge 41, and the second thickness gauge 41 measures the measured electrode sheet compressed by the soft roller press 4
  • the thickness value of 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the soft roll press 4 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after the soft roll press is within the second predetermined range.
  • a third thickness gauge 51 is provided between the shaping roller press 5 and the winding mechanism 2, and the third thickness gauge 51 measures the measured electrodes compressed by the shaping roller press 5
  • the thickness value of the sheet 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the shaping roller press 5 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after shaping and rolling is within the third predetermined range.
  • the roller diameter of the preheating roller press 3 is 400 mm, and the preheating roller press is 50t-60t.
  • the heating temperature of the preheating roller press 3 is selected between 120°C and 130°C.
  • the roll diameter of the soft roll press 4 is 400 mm, and the soft roll pressure is 80t-90t.
  • the roller diameter of the shaping roller press 5 is 800 mm, and the roller diameter of the shaping roller press is 180t-200t.
  • the first thickness gauge 31, the second thickness gauge 41 and the first thickness gauge 51 are laser thickness gauges.
  • the electrode sheet with a thickness of 0.254mm can be used. After the first stage of preheating and rolling, it can reach 0.206mm, the second stage of soft rolling can reach 0.159mm, and the third stage of shaping and rolling can reach 0.135mm.

Abstract

A non-stretching precise roller press, comprising an unwinding mechanism (1) and a winding mechanism (2), a preheating roller press (3), a soft roller press (4) and a shaping roller press (5) being provided in sequence, in the direction from the unwinding mechanism to the winding mechanism, between the unwinding mechanism and the winding mechanism. The preheating roller press performs compression on an electrode sheet under a heating condition, and the compression ratio of the preheating roller press is 30-40%; a movable roller of the soft roller press is located above a soft rubber pad, the electrode sheet is compressed by the soft rubber pad, and the compression ratio of the soft roller press is 30-40%; and the shaping roller press performs shaping compression on the electrode sheet so as to ensure the thickness of the electrode sheet to be uniform, and the compression ratio of the shaping roller press is 20-40%. The non-stretching precise roller press can effectively prevent an electrode sheet of a lithium battery from stretching during the rolling process.

Description

新型无延展精密辊压机New type non-extension precision roller press 技术领域Technical field
本发明涉及一种用于锂电池极片压实的辊压机，尤其是一种新型无延展精密辊压机。The invention relates to a roller press for compacting lithium battery pole pieces, in particular to a new type of non-extension precision roller press.
背景技术Background technique
在锂电池极片的制作过程中，为了提高电池的电容量，需要对电池极片两侧的活性物质进行压密实。这个压密实的过程通常是采用辊压机进行的，它是电池极片由轧辊与电池极片间产生的摩擦力拉进旋转的轧辊之间，电池极片受压变形的过程。In the production process of lithium battery pole pieces, in order to increase the battery capacity, it is necessary to compact the active materials on both sides of the battery pole pieces. This compaction process is usually carried out by using a roller press. It is a process in which the battery pole pieces are pulled between the rotating rolls by the friction generated between the roller and the battery pole pieces, and the battery pole pieces are deformed under pressure.
电池极片在轧制过程中，现有的辊压设备由于设计不合理，在辊压的过程中，会造成极片的基材延展，从而造成电极两面的活性物质与基材的粘结不牢固，出现位置移动、变形等影响电池极片的性能。During the rolling process of the battery pole piece, the existing rolling equipment due to the unreasonable design, in the process of rolling, will cause the substrate of the pole piece to stretch, which will cause the active material on both sides of the electrode to not bond with the substrate. Firmness, position shift, deformation, etc. affect the performance of the battery pole piece.
发明内容Summary of the invention
为了解决上述问题，本发明向社会提供一种可以有效地防止锂电池极片在辊压过程中延展的新型无延展精密辊压机。In order to solve the above problems, the present invention provides the society with a new type of non-extension precision roller press which can effectively prevent the lithium battery pole pieces from extending during the rolling process.
本发明的技术方案是：提供一种新型无延展精密辊压机，放卷机构和收卷机构，在所述放卷机构和收卷机构之间，从所述放卷机构依次设有预热辊压机、软辊压机和整形辊压机，所述预热辊压机在加热的条件下，对电极片进行压缩，所述预热辊压机的压缩比为30％-40％； 所述软辊压机的活动辊位于软胶垫之上，通过软胶垫对电极片进行压缩，所述软辊压机的压缩比为30％-40％；所述整型辊压机对电极片进行整型压缩，以保证电极片的厚度一致，所述整型辊压机的压缩比为20％-40％。The technical solution of the present invention is to provide a new type of non-extension precision roller press, an unwinding mechanism and a winding mechanism, between the unwinding mechanism and the winding mechanism, a preheating mechanism is sequentially arranged from the unwinding mechanism A roller press, a soft roller press and a shaping roller press, wherein the preheating roller press compresses the electrode sheet under heating, and the compression ratio of the preheating roller press is 30%-40%; The movable roller of the soft roller press is located on the soft rubber pad, and the electrode sheet is compressed by the soft rubber pad. The compression ratio of the soft roller press is 30%-40%; The electrode sheet is shaped and compressed to ensure that the thickness of the electrode sheet is consistent, and the compression ratio of the shaping roller press is 20%-40%.
作为对本发明的改进，在所述预热辊压机与软辊压机设有第一测厚仪，所述第一测厚仪将所测得的被预热辊压机压缩后的电极片的厚度值反馈给控制电路，所述控制电路根据所测的厚度值来调节预热辊压机的辊缝，保证预热辊压后的电极片厚度在第一预定厚度范围内。As an improvement to the present invention, the preheating roller press and the soft roller press are provided with a first thickness gauge, and the first thickness gauge measures the measured electrode sheet compressed by the preheating roller press The thickness value of is fed back to the control circuit, and the control circuit adjusts the roll gap of the preheating roller press according to the measured thickness value to ensure that the thickness of the electrode sheet after preheating and rolling is within the first predetermined thickness range.
作为对本发明的改进，在所述软辊压机与整形辊压机设有第二测厚仪，所述第二测厚仪将所测得的被软辊压机压缩后的电极片的厚度值反馈给控制电路，所述控制电路根据所测的厚度值来调节软辊压机的辊缝，保证软辊压后的电极片厚度在第二预定范围内。As an improvement to the present invention, a second thickness gauge is provided on the soft roll press and the shaping roll press, and the second thickness gauge measures the thickness of the electrode sheet after being compressed by the soft roll press The value is fed back to the control circuit, and the control circuit adjusts the roll gap of the soft roll press according to the measured thickness value to ensure that the thickness of the electrode sheet after the soft roll press is within the second predetermined range.
作为对本发明的改进，在所述整形辊压机与收卷机构之间设有第三测厚仪，所述第三测厚仪将所测得的被整形辊压机压缩后的电极片的厚度值反馈给控制电路，所述控制电路根据所测的厚度值来调节整形辊压机的辊缝，保证整形辊压后的电极片厚度在第三预定范围内。As an improvement to the present invention, a third thickness gauge is provided between the shaping roller press and the winding mechanism, and the third thickness gauge measures the measured value of the electrode sheet compressed by the shaping roller press. The thickness value is fed back to the control circuit, and the control circuit adjusts the roll gap of the shaping roller press according to the measured thickness value to ensure that the thickness of the electrode sheet after shaping and rolling is within the third predetermined range.
作为对本发明的改进，所述预热辊压机的辊径为400mm，预热辊压为50t-60t。As an improvement to the present invention, the roll diameter of the preheating roller press is 400mm, and the preheating roller press is 50t-60t.
作为对本发明的改进，所述预热辊压机的加热温度在120℃-130℃之间选择。As an improvement to the present invention, the heating temperature of the preheating roller press is selected between 120°C and 130°C.
作为对本发明的改进，所述软辊压机的辊径为400mm，软辊压压力为80t-90t。As an improvement to the present invention, the roll diameter of the soft roll press is 400mm, and the soft roll press pressure is 80t-90t.
作为对本发明的改进，整形辊压机的辊径为800mm，整形辊压国为180t-200t。As an improvement to the present invention, the roller diameter of the shaping roller press is 800mm, and the roller diameter of the shaping roller is 180t-200t.
作为对本发明的改进，所述第一测厚仪、所述第二测厚仪和所述第一测厚仪为激光测厚仪。As an improvement to the present invention, the first thickness gauge, the second thickness gauge and the first thickness gauge are laser thickness gauges.
本发明由于采用了多级不同方式，以及不同压缩比对电极片进行压缩，可以基本达到不会对电极片产生延展作用，因此，不会造成电极两面的活性物质与基材的粘结不牢固，出现位置移动、变形等问题。Since the present invention adopts multi-stage and different methods and different compression ratios to compress the electrode sheet, it can basically achieve no stretching effect on the electrode sheet, and therefore, does not cause the active material on both sides of the electrode to be weakly bonded to the substrate , There are problems such as position movement and deformation.
附图说明Description of the drawings
图1是本发明一种实施例的平面结构示意图。Figure 1 is a schematic plan view of an embodiment of the present invention.
图2是图1中软辊压机的另一种实施例结构示意图。Fig. 2 is a schematic structural diagram of another embodiment of the soft roller press in Fig. 1.
图3是图1中的预热辊压效果示意图。Fig. 3 is a schematic diagram of the preheating rolling effect in Fig. 1.
图4是图1中的软辊压效果示意图。Figure 4 is a schematic diagram of the soft rolling effect in Figure 1.
图5是图1中的整型辊压效果示意图。Fig. 5 is a schematic diagram of the effect of shaping and rolling in Fig. 1.
具体实施方式Detailed ways
请参见图1至图5，图1至图5揭示的是一种新型无延展精密辊压机，放卷机构1和收卷机构2，在所述放卷机构1和收卷机构2之间，从所述放卷机构1依次设有预热辊压机3、软辊压机4和整形辊压机5，所述预热辊压机3在加热的条件下，对电极片6进行压缩，所述预热辊压机3的压缩比为30％-40％；所述软辊压机4的活动辊41位于软胶垫42之上，通过软胶垫42对电极片6进行压缩，所述软辊压机4的压缩比为30％-40％；所述整型辊压机5对电极片6进行整型压缩，以保证电极片6的厚度一致，所述整型辊压机5的压缩比为20％-40％。本实施例中，所述预热辊压机3的压辊可以采用电热辊或油热辊。Please refer to Figures 1 to 5. Figures 1 to 5 show a new type of non-extension precision roller press, the unwinding mechanism 1 and the winding mechanism 2, between the unwinding mechanism 1 and the winding mechanism 2. , From the unwinding mechanism 1 is provided with a preheating roller press 3, a soft roller press 4 and a shaping roller press 5 in sequence, the preheating roller press 3 compresses the electrode sheet 6 under heating The compression ratio of the preheating roller press 3 is 30%-40%; the movable roller 41 of the soft roller press 4 is located on the soft rubber pad 42, and the electrode sheet 6 is compressed by the soft rubber pad 42, The compression ratio of the soft roller press 4 is 30%-40%; the shaping roller press 5 performs shaping and compression on the electrode sheet 6 to ensure that the thickness of the electrode sheet 6 is consistent. The compression ratio of 5 is 20%-40%. In this embodiment, the pressing roller of the preheating roller press 3 may be an electric heating roller or an oil heating roller.
本发明以及不同压缩比对电极片进行压缩，可以基本达到不会对电极片产生延展作用，因此，不会造成电极两面的活性物质与基材的粘结不牢固，出现位置移动、变形等问题。通过多级分级逐步辊压，能有效缩小极片的横向和纵向在辊压过程中的延展，避免极片因延展而产生褶皱等不良。The present invention and the compression of the electrode sheet with different compression ratios can basically achieve no stretching effect on the electrode sheet. Therefore, it will not cause the active material on both sides of the electrode to be weakly bonded to the base material, causing problems such as position shift and deformation. . Through multi-stage grading and gradual rolling, it can effectively reduce the horizontal and vertical extension of the pole piece during the rolling process, and avoid the wrinkles and other defects caused by the extension of the pole piece.
本发明中，所述软辊压机4有两种不同的结构形式，第一种是如图1中所述，软胶垫42为循环带状结构43，与所述软辊压机4的上辊的转动方向相同；第二种是软胶垫42为单带状结构44，如图2所示，软胶垫42从一侧向另一侧放带，而另一侧则收带，这种情况下，软胶垫42的长度最好大于等于电极片6的长度，以保证电极片6在 辊压的过程中，始终能有软胶垫42垫在软辊压机4的辊缝之间。使用软胶垫4的好处是可以使辊压机的线接触变为面接触，以防止电极片6的延展发生。本发明中的软胶垫4可以采用PET或PPO塑料制备。In the present invention, the soft roller press 4 has two different structural forms. The first one is as shown in FIG. 1. The soft rubber pad 42 is a circulating belt-like structure 43, which is different from the soft roller press 4 The direction of rotation of the upper roller is the same; the second is that the soft rubber pad 42 has a single-belt structure 44, as shown in Figure 2, the soft rubber pad 42 is placed from one side to the other side, and the other side is retracted. In this case, the length of the soft rubber pad 42 is preferably greater than or equal to the length of the electrode sheet 6, so as to ensure that the soft rubber pad 42 can always be cushioned on the roll gap of the soft roller press 4 during the rolling process of the electrode sheet 6 between. The advantage of using the soft rubber pad 4 is that the line contact of the roller press can be changed to surface contact to prevent the spread of the electrode sheet 6 from occurring. The soft rubber pad 4 in the present invention can be made of PET or PPO plastic.
优选的，在所述预热辊压机3与软辊压机4设有第一测厚仪31，所述第一测厚仪31将所测得的被预热辊压机3压缩后的电极片6的厚度值反馈给控制电路7，所述控制电路7根据所测的厚度值来调节预热辊压机3的辊缝，保证预热辊压后的电极片6厚度在第一预定厚度范围内。Preferably, the preheating roller press 3 and the soft roller press 4 are provided with a first thickness gauge 31, and the first thickness gauge 31 measures the measured value compressed by the preheating roller press 3 The thickness value of the electrode sheet 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the preheating roller press 3 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after preheating and rolling is at the first predetermined thickness. Within the thickness range.
优选的，在所述软辊压机4与整形辊压机5设有第二测厚仪41，所述第二测厚仪41将所测得的被软辊压机4压缩后的电极片6的厚度值反馈给控制电路7，所述控制电路7根据所测的厚度值来调节软辊压机4的辊缝，保证软辊压后的电极片6厚度在第二预定范围内。Preferably, the soft roller press 4 and the shaping roller press 5 are provided with a second thickness gauge 41, and the second thickness gauge 41 measures the measured electrode sheet compressed by the soft roller press 4 The thickness value of 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the soft roll press 4 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after the soft roll press is within the second predetermined range.
优选的，在所述整形辊压机5与收卷机构2之间设有第三测厚仪51，所述第三测厚仪51将所测得的被整形辊压机5压缩后的电极片6的厚度值反馈给控制电路7，所述控制电路7根据所测的厚度值来调节整形辊压机5的辊缝，保证整形辊压后的电极片6厚度在第三预定范围内。Preferably, a third thickness gauge 51 is provided between the shaping roller press 5 and the winding mechanism 2, and the third thickness gauge 51 measures the measured electrodes compressed by the shaping roller press 5 The thickness value of the sheet 6 is fed back to the control circuit 7, and the control circuit 7 adjusts the roll gap of the shaping roller press 5 according to the measured thickness value to ensure that the thickness of the electrode sheet 6 after shaping and rolling is within the third predetermined range.
优选的，所述预热辊压机3的辊径为400mm，预热辊压为50t-60t。Preferably, the roller diameter of the preheating roller press 3 is 400 mm, and the preheating roller press is 50t-60t.
优选的，所述预热辊压机3的加热温度在120℃-130℃之间选择。Preferably, the heating temperature of the preheating roller press 3 is selected between 120°C and 130°C.
优选的，所述软辊压机4的辊径为400mm，软辊压压力为80t-90t。Preferably, the roll diameter of the soft roll press 4 is 400 mm, and the soft roll pressure is 80t-90t.
优选的，整形辊压机5的辊径为800mm，整形辊压国为180t-200t。Preferably, the roller diameter of the shaping roller press 5 is 800 mm, and the roller diameter of the shaping roller press is 180t-200t.
优选的，所述第一测厚仪31、所述第二测厚仪41和所述第一测厚仪51为激光测厚仪。Preferably, the first thickness gauge 31, the second thickness gauge 41 and the first thickness gauge 51 are laser thickness gauges.
本发明中，如果采用第一级预热辊压的压缩比为40％，软辊压压缩比为40％，整形辊压的压缩比为20％；则可将厚度为0.254mm的电极片，经第一级预热辊压后可以达到0.206mm，第二级软辊压后达到0.159mm，第三级整形辊压后达到0.135mm。In the present invention, if the compression ratio of the first-stage preheating rolling is 40%, the soft rolling compression ratio is 40%, and the shaping rolling compression ratio is 20%, the electrode sheet with a thickness of 0.254mm can be used. After the first stage of preheating and rolling, it can reach 0.206mm, the second stage of soft rolling can reach 0.159mm, and the third stage of shaping and rolling can reach 0.135mm.
对本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及形变，而所有的这些改变以及形变都应该属于本发明权利要求的保护范围之内。For those skilled in the art, various other corresponding changes and deformations can be made based on the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (10)

  1. 一种新型无延展精密辊压机，放卷机构(1)和收卷机构(2)，其特征在于：在所述放卷机构(1)和收卷机构(2)之间，从所述放卷机构(1)依次设有预热辊压机(3)、软辊压机(4)和整形辊压机(5)，所述预热辊压机(3)在加热的条件下，对电极片(6)进行压缩，所述预热辊压机(3)的压缩比为30％-40％；所述软辊压机(4)的活动辊(41)位于软胶垫(42)之上，通过软胶垫(42)对电极片(6)进行压缩，所述软辊压机(4)的压缩比为30％-40％；所述整型辊压机(5)对电极片(6)进行整型压缩，以保证电极片(6)的厚度一致，所述整型辊压机(5)的压缩比为20％-40％。A new type of non-extension precision roller press, unwinding mechanism (1) and winding mechanism (2), characterized in that: between the unwinding mechanism (1) and the winding mechanism (2), from the The unwinding mechanism (1) is provided with a preheating roller press (3), a soft roller press (4) and a shaping roller press (5) in sequence. The preheating roller press (3) is heated under heating conditions. The electrode sheet (6) is compressed, the compression ratio of the preheating roller press (3) is 30%-40%; the movable roller (41) of the soft roller press (4) is located on the soft rubber pad (42) ), the electrode sheet (6) is compressed by a soft rubber pad (42), the compression ratio of the soft roller press (4) is 30%-40%; the shaping roller press (5) is The electrode sheet (6) undergoes shaping and compression to ensure that the thickness of the electrode sheet (6) is consistent, and the compression ratio of the shaping roller press (5) is 20%-40%.
  2. 根据权利要求1所述的新型无延展精密辊压机，其特征在于：在所述预热辊压机(3)与软辊压机(4)设有第一测厚仪(31)，所述第一测厚仪(31)将所测得的被预热辊压机(3)压缩后的电极片(6)的厚度值反馈给控制电路(7)，所述控制电路(7)根据所测的厚度值来调节预热辊压机(3)的辊缝，保证预热辊压后的电极片(6)厚度在第一预定厚度范围内。The new non-extension precision roller press according to claim 1, characterized in that: the preheating roller press (3) and the soft roller press (4) are provided with a first thickness gauge (31), so The first thickness gauge (31) feeds back the measured thickness value of the electrode sheet (6) compressed by the preheating roller press (3) to the control circuit (7), and the control circuit (7) is based on The measured thickness value is used to adjust the roll gap of the preheating roller press (3) to ensure that the thickness of the electrode sheet (6) after preheating and rolling is within the first predetermined thickness range.
  3. 根据权利要求1或2所述的新型无延展精密辊压机，其特征在于：在所述软辊压机(4)与整形辊压机(5)设有第二测厚仪(41)，所述第二测厚仪(41)将所测得的被软辊压机(4)压缩后的电极片(6)的厚度值反馈给控制电路(7)，所述控制电路(7)根据所测的厚度值来调节软辊压机(4)的辊缝，保证软辊压后的电极片(6)厚度在第二预定范围内。The new non-extension precision roller press according to claim 1 or 2, characterized in that: the soft roller press (4) and the shaping roller press (5) are provided with a second thickness gauge (41), The second thickness gauge (41) feeds back the measured thickness value of the electrode sheet (6) compressed by the soft roll press (4) to the control circuit (7), and the control circuit (7) is based on The measured thickness value is used to adjust the roll gap of the soft roll press (4) to ensure that the thickness of the electrode sheet (6) after the soft roll press is within the second predetermined range.
  4. 根据权利要求1或2所述的新型无延展精密辊压机，其特征在于：在所述整形辊压机(5)与收卷机构(2)之间设有第三测厚仪(51)，所述第三测厚仪(51)将所测得的被整形辊压机(5)压缩后的电极片(6)的厚度值反馈给控制电路(7)，所述控制电路(7)根据所测的厚度值来调节整形辊压机(5)的辊缝，保证整形辊压后的电极片(6)厚度在第三预定范围内。The new non-extension precision roller press according to claim 1 or 2, characterized in that: a third thickness gauge (51) is provided between the shaping roller press (5) and the winding mechanism (2) The third thickness gauge (51) feeds back the measured thickness value of the electrode sheet (6) compressed by the shaping roller press (5) to the control circuit (7), and the control circuit (7) The roll gap of the shaping roller press (5) is adjusted according to the measured thickness value to ensure that the thickness of the electrode sheet (6) after shaping and rolling is within the third predetermined range.
  5. 根据权利要求3所述的新型无延展精密辊压机，其特征在于：在所述整形辊压机(5)与收卷机构(2)之间设有第三测厚仪(51)，所述第三测厚仪(51)将所测得的被整形辊压机(5)压缩后的电极片(6)的厚度值反馈给控制电路(7)，所述控制电路(7)根据所测的厚度值来调节整形辊压机(5)的辊缝，保证整形辊压后的电极片(6)厚度在第三预定范围内。The new non-extension precision roller press according to claim 3, characterized in that: a third thickness gauge (51) is provided between the shaping roller press (5) and the winding mechanism (2), so The third thickness gauge (51) feeds back the measured thickness value of the electrode sheet (6) compressed by the shaping roller press (5) to the control circuit (7), and the control circuit (7) is based on the The measured thickness value is used to adjust the roll gap of the shaping roller press (5) to ensure that the thickness of the electrode sheet (6) after shaping and rolling is within the third predetermined range.
  6. 根据权利要求1或2所述的新型无延展精密辊压机，其特征在于：所述预热辊压机(3)的辊径为400mm，预热辊压为50t-60t。The new type non-extension precision roller press according to claim 1 or 2, characterized in that: the roller diameter of the preheating roller press (3) is 400mm, and the preheating roller pressure is 50t-60t.
  7. 根据权利要求6所述的新型无延展精密辊压机，其特征在于：所述预热辊压机(3)的加热温度在120℃-130℃之间选择。The novel non-extending precision roller press according to claim 6, characterized in that the heating temperature of the preheating roller press (3) is selected between 120°C and 130°C.
  8. 根据权利要求1或2所述的新型无延展精密辊压机，其特征在于：所述软辊压机(4)的辊径为400mm，软辊压压力为80t-90t。The new type non-extension precision roller press according to claim 1 or 2, characterized in that the roll diameter of the soft roller press (4) is 400mm, and the soft roller pressing pressure is 80t-90t.
  9. 根据权利要求1或2所述的新型无延展精密辊压机，其特征在于：整形辊压机(5)的辊径为800mm，整形辊压国为180t-200t。The new type non-extension precision roller press according to claim 1 or 2, characterized in that the roll diameter of the shaping roller press (5) is 800mm, and the shaping roller press country is 180t-200t.
  10. 根据权利要求2所述的新型无延展精密辊压机，其特征在于：所述第一测厚仪(31)为激光测厚仪。The new type non-extension precision roller press according to claim 2, wherein the first thickness gauge (31) is a laser thickness gauge.
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