CN208955104U - Rolling device - Google Patents

Rolling device Download PDF

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Publication number
CN208955104U
CN208955104U CN201821458667.6U CN201821458667U CN208955104U CN 208955104 U CN208955104 U CN 208955104U CN 201821458667 U CN201821458667 U CN 201821458667U CN 208955104 U CN208955104 U CN 208955104U
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China
Prior art keywords
pressure roller
protrusion
roller
band
roll
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Active
Application number
CN201821458667.6U
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Chinese (zh)
Inventor
张盛武
毕汉戎
虞永生
吴志阳
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Priority to CN201821458667.6U priority Critical patent/CN208955104U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Battery Electrode And Active Subsutance (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The utility model provides a kind of rolling device, is used for roll-in band and including unreeling structure, roller press mechanism and rolling-up mechanism.Unreeling structure is for being arranged band, and rolling-up mechanism is for drawing band across roller press mechanism and winding band;Roller press mechanism includes the first pressure roller and the second pressure roller being oppositely arranged, and band is configured as passing through between the first pressure roller and the second pressure roller and by roll-in.The rolling device further includes calender system, is set to the upstream and/or downstream of roller press mechanism.Calender system includes the third pressure roller and the 4th pressure roller being oppositely arranged, and third pressure roller includes third roll body and the third protrusion for being looped around third roll body periphery, and the 4th pressure roller includes the 4th roll body and the 4th protrusion for being looped around four-roller external week.Band is configured as passing through between third pressure roller and the 4th pressure roller and the roll-in by third protrusion and the 4th protrusion, and in roll-in, and the linear velocity of third protrusion and the 4th protrusion is different.

Description

Rolling device
Technical field
The utility model relates to field of material processing more particularly to a kind of rolling devices.
Background technique
Instantly, requirement of major depot to batteries of electric automobile is higher and higher, it is important that it wherein is exactly battery energy Metric density, battery energy density is bigger, and battery capacity is bigger under identical weight, and the mileage that automobile single charge can travel also can It increase accordingly.
In the production process of battery pole piece, it usually needs roll-in is carried out to pole piece, to improve the compacted density of pole piece, into And improve the energy density of battery.Referring to Fig.1, existing pole piece (one kind of band S) includes substrate S1 and is arranged in substrate S1 On coating S2, substrate S1 have expose blank area S11 and coated S2 covering coating area S12.But in roll-in During pole piece, the blank area S11 of substrate S1 is not under pressure, and would not also extend, and the coating area S12 of substrate S1 is then Calendering elongation can be generated, therefore causes the elongation percentage of substrate S1 different zones different, the blank area S11 of substrate S1 is easy to crumple, And the winding that will cause pole piece is uneven.
Utility model content
In view of the problems in the background art, the purpose of this utility model is to provide a kind of rolling devices, can make The elongation percentage of substrate entirety is consistent or close, and the blank area of substrate is avoided to crumple or tilt.
To achieve the goals above, the utility model provides a kind of rolling device, is used for roll-in band and including putting Roll up mechanism, roller press mechanism and rolling-up mechanism.Unreeling structure is for being arranged band, and rolling-up mechanism is for drawing band across roll-in Mechanism simultaneously winds band;Roller press mechanism includes the first pressure roller and the second pressure roller being oppositely arranged, and band is configured as from first It is passed through between pressure roller and the second pressure roller and by roll-in.The rolling device further includes calender system, is set to roller press mechanism Upstream and/or downstream.Calender system includes the third pressure roller and the 4th pressure roller being oppositely arranged, third pressure roller include third roll body and It is looped around the third protrusion of third roll body periphery, the 4th pressure roller includes the 4th roll body and is looped around the 4th prominent of four-roller external week Portion.Band is configured as passing through between third pressure roller and the 4th pressure roller and the roll-in by third protrusion and the 4th protrusion, and In roll-in, the linear velocity of third protrusion and the 4th protrusion is different.
Third protrusion is multiple and arranges along the axially spaced-apart of third roll body;4th protrusion is multiple and along the 4th roll body Axially spaced-apart arrangement;Third protrusion and the 4th protrusion quantity is identical and position is corresponding.
Calender system further includes the 5th pressure roller and the 6th pressure roller, and the 5th pressure roller is located at separate 4th pressure roller of third pressure roller Side, the 6th pressure roller are located at the side of the separate third pressure roller of the 4th pressure roller;5th pressure roller is contacted with third protrusion, the 6th pressure roller It is contacted with the 4th protrusion.
Calender system further includes the first driver, the second driver and third driver, and the first driver is connected to the 5th Pressure roller simultaneously can drive the 5th pressure roller to rotate, and the second driver is connected to the 6th pressure roller and the 6th pressure roller can be driven to rotate, the Three drivers are connected to the 5th pressure roller and the 6th pressure roller and the 5th pressure roller and the 6th pressure roller can be driven to relatively move.
Third protrusion is rotationally connected with third roll body, and the 4th protrusion is rotationally connected with the 4th roll body.
The material of third protrusion and the 4th protrusion is elastic material.
Band includes substrate and coating, and substrate includes blank area and the coating area being covered by the coating, blank area and coating Area is transversely arranged alternately.Third protrusion and the 4th protrusion are configured as the blank area of roll-in substrate, and third protrusion prominent the The height of three roll bodies and the sum of the height of prominent 4th roll body of the 4th protrusion are greater than the thickness of coating.
The rolling device further includes two speed adjusting gears, a speed adjusting gear be set to rolling-up mechanism and calender system it Between, another speed adjusting gear is set between unreeling structure and roller press mechanism;Each speed adjusting gear includes the 7th pressure roller and the 8th pressure Roller, band are configured as passing through between the 7th pressure roller and the 8th pressure roller, and the 8th pressure roller is resilient roller.
The rolling device further includes governing mechanism of tension, is set between speed adjusting gear and calender system.
The rolling device further includes control mechanism, is configured as the elongation percentage and feedback control third pressure roller of detection band With the revolving speed of the 4th pressure roller.
The beneficial effects of the utility model are as follows: when band passes through between the first pressure roller and the second pressure roller, coating is pressed It is thin, to improve the density of coating;Meanwhile the coating area of substrate is pressurized and extends.When band from third pressure roller and the 4th pressure roller it Between pass through when, pressure of the blank area of substrate by third protrusion and the 4th protrusion, meanwhile, two surfaces of blank area are with difference Speed advance, so blank area can extend under the action of pressure and differential i.e. differential roll.Differential calendering can be greatly The requirement to pressure is reduced, so that blank area be made to reach target elongation percentage under small pressure, high speed, and then makes substrate entirety Elongation percentage is consistent or close, and the blank area of substrate is avoided to crumple or tilt.
Detailed description of the invention
Fig. 1 is the schematic diagram of band.
Fig. 2 is the schematic diagram according to the rolling device of the utility model.
Fig. 3 is the schematic diagram according to the calender system of the rolling device of the utility model.
Fig. 4 is schematic diagram of the calender system in calender line.
Wherein, the reference numerals are as follows:
1 unreeling structure, 45 first driver
2 roller press mechanism, 46 second driver
21 first pressure roller, 47 third driver
22 second pressure roller, 5 speed adjusting gear
The 7th pressure roller of 3 rolling-up mechanism 51
The 8th pressure roller of 4 calender system 52
41 third pressure roller, 6 governing mechanism of tension
411 third roll body, 7 guide roller
412 third protrusion S bands
42 the 4th pressure roller S1 substrates
421 the 4th blank areas roll body S11
422 the 4th coating areas protrusion S12
43 the 5th pressure roller S2 coatings
44 the 6th pressure rollers
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and It is not used in restriction the application.
In the description of the present application unless specifically defined or limited otherwise, term " first ", " second ", " third " are only For descriptive purposes, it is not understood to indicate or imply relative importance;Term " multiple " refers to two or more; Unless otherwise prescribed or illustrate, term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " can be fixed company It connects, may be a detachable connection, or be integrally connected, or electrical connection;" connection " can be directly connected, can also be in Between medium be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be Concrete meaning in application.
In the description of this specification, it is to be understood that the nouns of locality such as "upper", "lower" described in the embodiment of the present application are With angle shown in the drawings come what is be described, the restriction to the embodiment of the present application should not be construed as.In addition, within a context, It is also to be appreciated that can not only directly connect when mentioning an element and being connected to another element "upper" or "lower" Connect another element "upper" perhaps "lower" can also be indirectly coupled to by intermediary element another element "upper" or "lower".The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
The rolling device of the utility model is used for roll-in band S.Specifically, referring to Fig.1, band S includes substrate S1 and painting Layer S2, substrate S1 include the coating area S12, blank area S11 and coating area S12 of blank area S11 and coated S2 covering along cross To being arranged alternately.Band S can be the pole piece of battery, and substrate S1 can be metal foil, and coating S2 may include active material (such as cobalt Sour lithium etc.).
Referring to Fig. 2, the rolling device of the utility model includes unreeling structure 1, roller press mechanism 2, rolling-up mechanism 3 and calendering Mechanism 4.
Unreeling structure 1 is for being arranged band S.Specifically, unreeling structure 1 may include let off roll, when needing roll-in band S When, band S can be arranged onto let off roll.
Rolling-up mechanism 3 is for drawing band S across roller press mechanism 2 and winding band S.Rolling-up mechanism 3 may include winding Roller, wind-up roll are drive roll.
Roller press mechanism 2 includes the first pressure roller 21 and the second pressure roller 22 being oppositely arranged, and band S is configured as from the first pressure It is passed through between roller 21 and the second pressure roller 22 and by roll-in.Wherein, the first pressure roller 21 and the second pressure roller 22 are isometrical roller, when When band S is passed through between the first pressure roller 21 and the second pressure roller 22, the first pressure roller 21 and 22 roll coated area S12 of the second pressure roller and Coating S2, coating area S12, which are pressurized, to be extended.
Calender system 4 may be disposed at the downstream of roller press mechanism 2, and the band S on unreeling structure 1 is sequentially passing through roller press mechanism 2 and calender system 4 after winding in rolling-up mechanism 3.Alternatively, calender system 4 may also set up in the upstream of roller press mechanism 2, or Person, calender system 4 are two groups and are respectively arranged at the upstream and downstream of roller press mechanism 2.
Calender system 4 includes the third pressure roller 41 and the 4th pressure roller 42 being oppositely arranged, and third pressure roller 41 includes third roll body 411 and it is looped around the third protrusion 412 of 411 periphery of third roll body, the 4th pressure roller 42 includes the 4th roll body 421 and is looped around the 4th 4th protrusion 422 of 421 periphery of roll body.Band S be configured as passing through between third pressure roller 41 and the 4th pressure roller 42 and by The roll-in of third protrusion 412 and the 4th protrusion 422, and in roll-in, the linear velocity of third protrusion 412 and the 4th protrusion 422 is not Together.
When band S is passed through between third pressure roller 41 and the 4th pressure roller 42, third protrusion 412 and the 4th protrusion 422 should be made It is opposite with the blank area S11 of band S, and then make the blank area S11 of 422 roll-in band S of third protrusion 412 and the 4th protrusion;Together When, third roll body 411 and the 4th roll body 421 do not press to coating S2.
During the tape transport of band S, by roll-in blank area S11, guarantee the outer peripheral surface and blank of third protrusion 412 Area S11 is in close contact and non-slip, the 4th protrusion 422 outer peripheral surface and blank area S11 are in close contact and non-slip.Referring to figure The speed on the surface of 4, blank area S11 contacted with third protrusion 412 is equal to the linear velocity V of the outer peripheral surface of third protrusion 4121, The speed on the surface of blank area S11 contacted with the 4th protrusion 422 is equal to the linear velocity V of the outer peripheral surface of the 4th protrusion 4222, That is the speed on two surfaces of blank area S11 is different in calender system 4.
When band S is passed through between the first pressure roller 21 and the second pressure roller 22, coating S2 is ironed, to improve coating S2 Density;Meanwhile the coating area S12 of substrate S1 is pressurized and extends.When band S is passed through between third pressure roller 41 and the 4th pressure roller 42 When, pressure of the blank area S11 of substrate S1 by third protrusion 412 and the 4th protrusion 422, meanwhile, two tables of blank area S11 Face is advanced at different rates, so blank area S11 can extend under the action of pressure and differential (while by normal direction roll-force With tangential drawing force, i.e. differential rolls).Differential calendering can greatly reduce the requirement to pressure, so that blank area S11 be made to exist Reach target elongation percentage under small pressure, high speed, and then keep the elongation percentage of substrate S1 entirety consistent or close, avoids substrate S1's Blank area S11 crumples or tilts.
In the production process of battery pole piece, multiple coating S2 would generally be coated in order to improve the production efficiency, on substrate S1. Referring to Fig.1, the blank area S11 of substrate S1 can be multiple.Therefore, in order to rolling multiple blank area S11, third protrusion simultaneously 412 are multiple and arrange along the axially spaced-apart of third roll body 411, the transverse direction for being axially parallel to substrate S1 of third roll body 411, the The quantity of three protrusions 412 is preferably equal to the quantity of blank area S11.4th protrusion 422 is multiple and along the 4th roll body 421 axial directions Arranged for interval, third protrusion 412 is identical with 422 quantity of the 4th protrusion and position is corresponding.
Referring to Fig. 3, the height and prominent 4th roll body 421 of the 4th protrusion 422 of the prominent third roll body 411 of third protrusion 412 The thickness (i.e. the thickness of the two sides substrate S1 coating S2 and) of the sum of height greater than coating S2, it is preferable that third protrusion 412 is prominent The height of third roll body 411 is greater than the thickness of the coating S2 of the side substrate S1, the height of prominent 4th roll body 421 of the 4th protrusion 422 Degree is greater than the thickness of the coating S2 of the other side substrate S1.When band S is passed through between third pressure roller 41 and the 4th pressure roller 42, apply Layer S2 not will receive the roll-in of third roll body 411 and the 4th roll body 421.
Preferably, third pressure roller 41 and the 4th about 42 pressure roller arrangement, the 4th roll body 421 can support coating S2 from downside, Coating S2 is avoided to collapse.And there are lesser gaps between the third roll body 411 and coating S2 of third pressure roller 41, to avoid Coating S2 is by roll-in;The gap can be 0.5mm~5mm, since gap is smaller, so third roll body 411 can limit painting The vibration of layer S2, avoids blank area S11 from crumpling.It alternatively, can also be simultaneously between third roll body 411 and coating S2 and the Retention gap between four roll bodies 421 and coating S2.
Referring to Fig. 3, calender system 4 further includes the 5th pressure roller 43 and the 6th pressure roller 44, and the 5th pressure roller 43 is located at third pressure roller 41 side far from the 4th pressure roller 42, the 6th pressure roller 44 are located at the side of the separate third pressure roller 41 of the 4th pressure roller 42;5th Pressure roller 43 is contacted with third protrusion 412, and the 6th pressure roller 44 is contacted with the 4th protrusion 422.5th pressure roller 43 and the 6th pressure roller 44 are For drive roll, third pressure roller 41 and the 4th pressure roller 42 are driven voller.5th pressure roller 43 is close to third protrusion 412, to drive Third protrusion 412 is rotated with constant linear velocity;6th pressure roller 44 is close to the 4th protrusion 422, thus the 4th protrusion 422 of driving It is rotated with constant linear velocity.
5th pressure roller 43 and the 6th pressure roller 44 are both preferably isometrical stainless steel riders, and stainless steel riders precision is high, wear-resistant, can Angular speed is accurately converted into linear velocity, can also be accurately controlled the linear speed of third protrusion 412 and the 4th protrusion 422 Degree.In addition, third pressure roller 41 and the 4th pressure roller 42 are easy to produce amount of deflection change by biggish reaction force in calender line Shape;And the 5th pressure roller 43 of the application and the 6th pressure roller 44 can limit the deflection deformation of third pressure roller 41 and the 4th pressure roller 42, Guarantee the uniformity of rolling effect.
Calender system 4 further includes the first driver 45, the second driver 46 and third driver 47, and the first driver 45 connects It is connected to the 5th pressure roller 43 and the 5th pressure roller 43 can be driven to rotate, the second driver 46 is connected to the 6th pressure roller 44 and can drive Dynamic 6th pressure roller 44 rotation, third driver 47 are connected to the 5th pressure roller 43 and the 6th pressure roller 44 and can drive the 5th pressure roller 43 It is relatively moved with the 6th pressure roller 44.First driver 45 and the second driver 46 can be servo motor, and servo motor can control The revolving speed of 5th pressure roller 43 and the 6th pressure roller 44.Third driver 47 can be pressure cylinder, and cylinder can synchronize the 5th pressure roller of driving 43 and 44 relative motion of the 6th pressure roller, and control by squeezing third pressure roller 41 and the 4th pressure roller 42 third protrusion 412 and the Roller pressure between four protrusions 422.
Third protrusion 412 is rotationally connected with third roll body 411, for example, third protrusion 412 can be connected to by bearing Three roll bodies 411.Third protrusion 412 is driven member, and is rotated under the drive of the 5th pressure roller 43.Third protrusion 412 is used for a long time After will appear abrasion, cause the outer diameter of each third protrusion 412 different;If all third protrusions 412 and third roll body 411 are solid Fixed connection leads to the then the linear velocity of the outer peripheral surface of multiple third protrusions 412 will appear difference under same angular speed Three protrusions 412 are slided relative to blank area S11.And in this application, third protrusion 412 is rotationally connected with third roll body 411, the angular speed of the multiple third protrusion 412 is mutually indepedent, so can also protect even if third protrusion 412 is worn The consistency (being equal to the linear velocity of the 5th pressure roller 43) for demonstrate,proving multiple 412 linear velocities of third protrusion, avoids 412 phase of third protrusion Blank area S11 is slided.
Similarly, the 4th protrusion 422 can also be rotationally connected with the 4th roll body 421 by bearing, to guarantee multiple four The consistency of 422 linear velocity of protrusion.
The application utilizes differential calendering technology, can reduce to the roller pressure between third protrusion 412 and the 4th protrusion 422 It is required that but blank area S11 upper and lower surface need for a long time maintain certain speed difference and pressure, so third protrusion 412 and the 4th Great friction coefficient, wear-resisting elastic material, such as silica gel or rubber may be selected in the material of protrusion 422.Referring to Fig. 4, third protrusion 412 and the 4th protrusion 422 deformed in roll-in blank area S11, so as to increase connecing for third protrusion 412 and blank area S11 The contact area of contacting surface product and the 4th protrusion 422 and blank area S11, what raising two surfaces blank area S11 were subject to tangentially rubs Power is wiped, blank area S11 is avoided to slide relative to third protrusion 412 or the 4th protrusion 422.
In the forming process of band S, blank area S11 may have microscopic nicks.And in this application, blank area S11 rolls that the time is short, and tangential drawing force is small, while notch can fixed (third be prominent by third protrusion 412 and the 4th protrusion 422 422 compressive deformation of portion 412 and the 4th protrusion has biggish contact surface between the S11 of blank area, it is possible to fixed to lack Mouthful), it is possible to intolerable degradation is avoided, disconnected band is prevented.
Referring to Fig. 2, the rolling device further includes two speed adjusting gears 5, and a speed adjusting gear 5 is set to rolling-up mechanism 3 Between calender system 4, another speed adjusting gear 5 is set between unreeling structure 1 and roller press mechanism 2;Each speed adjusting gear 5 includes 7th pressure roller 51 and the 8th pressure roller 52, band S are configured as passing through between the 7th pressure roller 51 and the 8th pressure roller 52, the 8th pressure roller 52 be resilient roller.7th pressure roller 51 and the 8th pressure roller 52 are isometrical roller, the 7th pressure roller 51 be drive roll, the 8th pressure roller 52 be from Dynamic roller.When band S between the 7th pressure roller 51 and the 8th pressure roller 52 from when passing through, the 7th pressure roller 51 and 52 roll-in of the 8th pressure roller are applied Layer S2.By adjusting the revolving speed of the 7th pressure roller 51, it can be accurately controlled the tape running speed of band S, guarantee band S with constant speed Tape transport is spent, band S is avoided to accumulate fold.
The rolling device further includes governing mechanism of tension 6, is set between speed adjusting gear 5 and calender system 4.Tension Regulating mechanism 6 may include tension detection sensor and dance roller, and the tension of tension detection sensor real-time detection band S is simultaneously Feedback control dance roller guarantees band with identical tension tape transport to adjust the tension of band S.Certainly, unreeling structure 1 and roller It may also set up governing mechanism of tension 6 between laminated structure 2.
The rolling device further includes control mechanism (not shown), is configured as the elongation percentage of detection band S and feeds back control The revolving speed of third pressure roller 41 and the 4th pressure roller 42 processed.Control mechanism includes detection module and processing module, and detection module is examined in real time It surveys blank area S11 and coating area S12 and walks strip length, the data and meter of processing module acquisition testing module within the unit time Calculate the elongation percentage difference of blank area S11 and coating area S12;If obtained elongation percentage is met the requirements, third pressure roller is kept 41 and the 4th pressure roller 42 revolving speed and third pressure roller 41 and the 4th pressure roller 42 between pressure;If there is deviation in elongation percentage, The then pressure between feedback control third pressure roller 41 and the revolving speed and third pressure roller 41 and the 4th pressure roller 42 of the 4th pressure roller 42, To adjust the elongation percentage of blank area S11 in real time.
The rolling device further includes guide roller 7, is set on the tape path of band S.The adjustable band of guide roller 7 Material S enters the height of calender system 4, realizes incidence angle control.

Claims (9)

1. a kind of rolling device is used for roll-in band (S), including unreeling structure (1), roller press mechanism (2) and rolling-up mechanism (3);
Unreeling structure (1) is for being arranged band (S), and rolling-up mechanism (3) is for drawing band (S) across roller press mechanism (2) and receiving Coiled strip (S);
Roller press mechanism (2) includes the first pressure roller (21) and the second pressure roller (22) being oppositely arranged, and band (S) is configured as from It is passed through between one pressure roller (21) and the second pressure roller (22) and by roll-in;
It is characterized in that,
The rolling device further includes calender system (4), is set to the upstream and/or downstream of roller press mechanism (2);
Calender system (4) includes the third pressure roller (41) and the 4th pressure roller (42) being oppositely arranged, and third pressure roller (41) includes third Roll body (411) and the third protrusion (412) for being looped around third roll body (411) periphery, the 4th pressure roller (42) include the 4th roll body (421) and it is looped around the 4th protrusion (422) of the 4th roll body (421) periphery;
Band (S) be configured as passing through between third pressure roller (41) and the 4th pressure roller (42) and by third protrusion (412) and The roll-in of 4th protrusion (422), and in roll-in, third protrusion (412) is different with the linear velocity of the 4th protrusion (422);
Band (S) includes substrate (S1) and coating (S2), and substrate (S1) includes that blank area (S11) and coated (S2) cover Coating area (S12), blank area (S11) and coating area (S12) are transversely arranged alternately;
Third protrusion (412) and the 4th protrusion (422) are configured as the blank area (S11) of roll-in substrate (S1), and third protrusion (412) height of prominent third roll body (411) and the sum of the height of prominent 4th roll body (421) of the 4th protrusion (422), which are greater than, applies The thickness of layer (S2).
2. rolling device according to claim 1, which is characterized in that
Third protrusion (412) is multiple and arranges along the axially spaced-apart of third roll body (411);
4th protrusion (422) is multiple and arranges along the axially spaced-apart of the 4th roll body (421);
Third protrusion (412) is identical with the 4th protrusion (422) quantity and position is corresponding.
3. rolling device according to claim 2, which is characterized in that
Calender system (4) further includes the 5th pressure roller (43) and the 6th pressure roller (44), and the 5th pressure roller (43) is located at third pressure roller (41) The side far from the 4th pressure roller (42), the 6th pressure roller (44) is located at the one of the separate third pressure roller (41) of the 4th pressure roller (42) Side;
5th pressure roller (43) is contacted with third protrusion (412), and the 6th pressure roller (44) is contacted with the 4th protrusion (422).
4. rolling device according to claim 3, which is characterized in that calender system (4) further include the first driver (45), Second driver (46) and third driver (47), the first driver (45) are connected to the 5th pressure roller (43) and can drive the 5th Pressure roller (43) rotation, the second driver (46) are connected to the 6th pressure roller (44) and the 6th pressure roller (44) can be driven to rotate, third Driver (47) is connected to the 5th pressure roller (43) and the 6th pressure roller (44) and can drive the 5th pressure roller (43) and the 6th pressure roller (44) it relatively moves.
5. rolling device according to claim 3, which is characterized in that third protrusion (412) is rotationally connected with third roller Body (411), the 4th protrusion (422) are rotationally connected with the 4th roll body (421).
6. rolling device according to claim 5, which is characterized in that the material of third protrusion (412) and the 4th protrusion (422) Matter is elastic material.
7. rolling device according to claim 1, which is characterized in that
The rolling device further includes two speed adjusting gears (5), and a speed adjusting gear (5) is set to rolling-up mechanism (3) and calendering Between mechanism (4), another speed adjusting gear (5) is set between unreeling structure (1) and roller press mechanism (2);
Each speed adjusting gear (5) includes the 7th pressure roller (51) and the 8th pressure roller (52), and band (S) is configured as from the 7th pressure roller (51) And the 8th pass through between pressure roller (52), the 8th pressure roller (52) is resilient roller.
8. rolling device according to claim 7, which is characterized in that the rolling device further includes governing mechanism of tension (6), it is set between speed adjusting gear (5) and calender system (4).
9. rolling device according to claim 1, which is characterized in that the rolling device further includes control mechanism, is matched It is set to the elongation percentage of detection band (S) and the revolving speed of feedback control third pressure roller (41) and the 4th pressure roller (42).
CN201821458667.6U 2018-09-06 2018-09-06 Rolling device Active CN208955104U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110586650A (en) * 2019-09-19 2019-12-20 江苏塔菲尔新能源科技股份有限公司 Rolling system of lithium battery pole piece
CN112297489A (en) * 2019-10-10 2021-02-02 宁德时代新能源科技股份有限公司 Pole piece forming device and pole piece forming method
CN116441325A (en) * 2023-04-21 2023-07-18 邢台纳科诺尔精轧科技股份有限公司 Reduction ratio calibration method, device, terminal and storage medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110586650A (en) * 2019-09-19 2019-12-20 江苏塔菲尔新能源科技股份有限公司 Rolling system of lithium battery pole piece
CN112297489A (en) * 2019-10-10 2021-02-02 宁德时代新能源科技股份有限公司 Pole piece forming device and pole piece forming method
CN116441325A (en) * 2023-04-21 2023-07-18 邢台纳科诺尔精轧科技股份有限公司 Reduction ratio calibration method, device, terminal and storage medium
CN116441325B (en) * 2023-04-21 2023-10-13 邢台纳科诺尔精轧科技股份有限公司 Reduction ratio calibration method, device, terminal and storage medium

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