CN114700232A

CN114700232A - Coating, drying and rolling mill

Info

Publication number: CN114700232A
Application number: CN202210368424.8A
Authority: CN
Inventors: 陆立昌
Original assignee: Shenzhen Zlc Intelligent Equipment Co ltd
Current assignee: Shenzhen Zlc Intelligent Equipment Co ltd
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-07-05
Anticipated expiration: 2042-04-09
Also published as: CN114700232B

Abstract

The invention discloses a coating and drying calender which comprises an installation rack, wherein a coating box, a drying box and a calendering box are sequentially arranged on the upper surface of the installation rack, the coating box is used for coating the surface of a copper foil body, the drying box is used for drying the coated copper foil body, the calendering box is used for calendering the copper foil body, an upper group of scraping mechanism and a lower group of scraping mechanism which are used for scraping the surface of the coated copper foil body are arranged in the coating box, each group of scraping mechanism is composed of two oppositely arranged connecting rod mechanisms, and each connecting rod mechanism comprises a supporting strip and a supporting plate which are fixed on the coating box. The invention ensures the uniformity of the sizing agent on the upper surface and the lower surface of the copper foil body, improves the drying efficiency through the dynamic drying process of the copper foil body, and realizes the thickness uniformity in the rolling process.

Description

Coating, drying and rolling mill

Technical Field

The invention relates to the technical field of lithium ion batteries, in particular to a coating, drying and calendaring machine.

Background

Among a plurality of energy storage technologies, a lithium ion battery is considered as a next-generation efficient portable chemical power source because of its advantages of high energy density, long cycle life, light weight, no pollution and the like, and as a chemical power source, the lithium ion battery has the advantages of high energy density, long cycle life, no memory effect and the like, and is widely applied to the fields of electric automobiles and mobile electronic devices. However, the lithium ion battery is often charged for a long time, cannot meet the requirement of quick charging of electric vehicles and electronic equipment, and limits the wide application of the lithium ion battery to a great extent, and in the aspect of negative electrode materials, because the theoretical capacity of the traditional commercialized graphite is 372mAhg-1, the requirement of the high specific energy lithium ion battery is difficult to meet, the search for a negative electrode of a material with higher specific energy is particularly urgent; the preparation method of the conventional high specific energy lithium ion battery cathode comprises the following steps: s1, adding the negative electrode active material, the conductive agent I, the conductive agent II and the adhesive into deionized water, and fully stirring to obtain negative electrode slurry; s2, coating the negative electrode slurry on a rolled copper foil by using a coating machine, and drying; s3, rolling the dried rolled copper foil in the step S2 to prepare a negative pole piece; in practical application, the preparation method is mature, but equipment using the method is not available, and the preparation is quite difficult, so that the invention provides a coating and drying calender.

Disclosure of Invention

The invention aims to provide a coating and drying calender, which ensures the uniformity of slurry on the upper surface and the lower surface of a copper foil body, improves the drying efficiency through the dynamic drying process of the copper foil body, and realizes the thickness uniformity in the calendering process.

In order to achieve the purpose, the invention provides the following technical scheme: the coating and drying calender comprises an installation rack, wherein a coating box, a drying box and a calendering box are sequentially arranged on the upper surface of the installation rack, the coating box is used for coating the surface of the copper foil body, the drying box is used for drying the coated copper foil body, and the calendering box is used for calendering the copper foil body;

the coating box is internally provided with an upper group of scraping mechanisms and a lower group of scraping mechanisms which are used for scraping the surface of the coated copper foil body, each group of scraping mechanisms comprises two opposite link mechanisms, each link mechanism comprises a supporting bar and a supporting plate which are fixed on the coating box, the top of the supporting plate is fixedly provided with a sliding rail, the inside of the sliding rail is slidably provided with a second sliding block, the second sliding block is fixedly provided with a first connecting rod, the two ends of the first connecting rod are respectively rotatably provided with a second connecting rod and a third connecting rod, the ends of the second connecting rod and the third connecting rod, which are far away from the first connecting rod, are rotatably provided with a fourth connecting rod, the end of the fourth connecting rod, which is far away from the second connecting rod, is provided with a groove, the inside of the groove is slidably provided with a movable column, a second pressure spring is connected between the movable column and the groove, and one end of the movable column, which is far away from the second pressure spring, is transversely and fixedly provided with a scraping strip, the utility model discloses a support bar, including the support bar, the lateral wall fixedly connected with of support bar installs the first installation piece, but install wobbling pendulum rod on the first installation piece, the installation of pendulum rod and the middle part rotation that corresponds the third connecting rod, first installation piece lateral wall fixed mounting has the first motor of drive third connecting rod wobbling.

Preferably, be connected with between two second sliders that scrape material mechanism place and be used for drawing mechanism to copper foil body intermittent type step-by-step, draw and draw mechanism and constitute by upper and lower two sets of compression roller assembly, every group compression roller assembly is including fixing the installing frame on the second slider, the interior top fixed mounting of installing frame has first electric telescopic handle, first electric telescopic handle's output has the pinch roll through installed part fixed mounting.

Preferably, the inner wall of coating case is provided with the transport adjustment mechanism that is used for carrying out the tensioning to the copper foil body and adjusts, transport adjustment mechanism includes the fixed plate of fixed mounting on the coating incasement wall, the fixed plate sets up for "T" shape structure, the horizontal section at fixed plate place rotates and installs two coating transfer rollers, the mounting groove has been seted up to the vertical section at fixed plate place, the movable block that the mounting groove set up through it rotates installation coating transfer roller, the mounting groove has the electromagnetic block with the opposite face of movable block fixed mounting respectively, be connected with the extension spring between the electromagnetic block, two the electromagnetic block magnetism is inhaled and is repelled.

Preferably, a plurality of chutes are formed in the inner wall of the drying box, the chutes are rotatably mounted with the drying conveying rollers through first sliders arranged in the chutes, vertical rods are fixedly mounted at the bottoms of the first sliders where the chutes are located, and transverse limiting columns are fixed on the lower portions of the vertical rods.

Preferably, a transverse bar is connected to the second sliding block where the link mechanism is located, one end of the transverse bar, which is far away from the second sliding block, extends to the inside of the drying box and is fixedly provided with a mounting bar, and a plurality of groups of limiting grooves which are oppositely arranged are formed in the mounting bar and used for limiting the limiting sliding of the limiting columns.

Preferably, the front end fixed mounting of mounting bracket has the feed roller that is used for the pay-off, the middle part fixed mounting of mounting bracket has the middle transfer roller that is used for carrying, the one end fixed mounting that the feed roller was kept away from to the mounting bracket has the receipts material roller that is used for the coil stock.

Preferably, the calendering box is internally provided with a calendering mechanism which comprises a fixing frame, the fixing frame is provided with two sets of opposite calendering components, each set of calendering component comprises a second mounting block rotatably mounted on the fixing frame, a connecting shaft is mounted on the second mounting block through a through hole, a cam friction disc is fixedly mounted at one end of the connecting shaft, the other end of the connecting shaft is fixedly provided with a calendering roller, a first pressure spring is sleeved on the outer wall of the connecting shaft between the cam friction disc and the second mounting block, and the fixing frame is provided with a first meshing transmission mechanism for driving the calendering roller to tilt and deflect up and down.

Preferably, still be provided with on the mount and be used for driving calendering roller pivoted speed adjusting mechanism, speed adjusting mechanism installs the installation cover on the mount including rotating, the second cone tooth is installed through first installation axle rotation to installation cover inside, the other end fixed mounting of installation cover is used for driving second cone tooth pivoted second motor, the outer wall fixed mounting of installation cover has the connecting piece, the vertical section at connecting piece place rotates and installs second installation axle, the one end fixed mounting of second installation axle has the first cone tooth with second cone tooth engaged with, the other end fixed mounting of second installation axle has the transmission friction pulley, through friction drive between transmission friction pulley and the cam friction disk, still be provided with the second meshing transmission mechanism who is used for the gear deflection on the mount.

Preferably, the second meshing transmission mechanism comprises a second electric telescopic rod fixedly mounted on the fixing frame, a rack is fixedly mounted at the output end of the second electric telescopic rod, a gear meshed with the rack is arranged on the outer wall of the first mounting shaft, and the second meshing transmission mechanism is identical to the first meshing transmission mechanism in structure.

Preferably, the outer wall of the calendering roll is provided with a pressure sensor.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the arrangement of the scraping mechanism, on one hand, under the action of the scraping strip, redundant slurry on the upper surface and the lower surface of the copper foil body can be scraped, and the uniformity of the slurry on the upper surface and the lower surface of the copper foil body is ensured, on the other hand, through the characteristic of the connecting rod mechanism, when the two second sliding blocks reach the tail ends, the second sliding blocks can perform one-time rapid left-right movement in the sliding rail through the quick return characteristic of the movement, and at the moment, the copper foil body clamped by the two clamping rollers shakes off the residual slurry on the surface of the coating layer in the rapid shaking process of the second sliding blocks.

2. According to the invention, through the matching of the scraping mechanism and the pulling mechanism, when the two fourth connecting rods are close to each other, the two scraping strips are mutually abutted, and simultaneously, under the action of the movement of the second sliding block, the copper foil body is pulled forward by a section, namely, when the copper foil body is pulled forward, the two scraping strips are extruded downwards at the same time, so that the scraping of redundant slurry on the upper surface and the lower surface of the copper foil body can be realized.

3. According to the invention, the drying time can be prolonged by arranging the plurality of drying conveying rollers, and the copper foil body is distributed among the plurality of drying conveying rollers in an S shape, and meanwhile, due to the connection effect of the transverse bar, when the second sliding block moves back and forth in the sliding rail, the height between the adjacent drying conveying rollers can be changed, so that the dynamic drying process of the copper foil body is realized, and the drying efficiency can be further improved.

4. According to the invention, the first meshing transmission mechanism drives the calendering roller on which the second mounting block is arranged to vertically deflect in a pitching manner, so that pressure values on two sides of the calendering roller are changed, friction transmission is adopted between the cam friction disc and the transmission friction wheel, namely, the calendering roller can be continuously driven to rotate when the second motor works, and the calendering deformation stress at different positions on the copper foil body is improved, so that the thickness of the copper foil body is uniform.

5. According to the invention, the transmission friction wheel is driven to deflect through the arranged second meshing transmission, the cam friction disc moves towards the direction close to the second mounting block and extrudes the first pressure spring, the transmission efficiency of the transmission friction wheel to the cam friction disc is changed, the speed of the calendering roller can be changed, and the phenomenon of uneven upper and lower surfaces during calendering deformation can be effectively improved by calendering the copper foil body through speed difference.

Drawings

Fig. 1 is a first perspective view perspective structure diagram of a coating and drying calender according to a preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of a second perspective view of the coating and drying calender shown in FIG. 1;

fig. 3 is a partially disassembled first perspective structure schematic view of a coating and drying calender according to a preferred embodiment of the present invention;

FIG. 4 is a second perspective view of the coating and drying calender shown in FIG. 3;

FIG. 5 is a schematic top view of the coating and drying calender shown in FIG. 3;

FIG. 6 is a schematic side view of a coating and drying calender according to a preferred embodiment of the present invention;

FIG. 7 is a schematic view of a section B-B of the coating and drying calender shown in FIG. 6;

FIG. 8 is a schematic view of a D-D cross-sectional structure of the coating and drying calender shown in FIG. 6;

fig. 9 is an enlarged schematic structural view of a coating and drying calender according to a preferred embodiment of the present invention at a position a;

fig. 10 is an enlarged schematic structural view of a coating and drying calender according to a preferred embodiment of the present invention at position C;

fig. 11 is an enlarged schematic structural view of a coating and drying calender according to a preferred embodiment of the present invention at a position E;

fig. 12 is an enlarged schematic structural view of a coating and drying calender according to a preferred embodiment of the present invention at a position F;

FIG. 13 is a schematic cross-sectional enlarged structure view of a drying box of a coating and drying calender according to a preferred embodiment of the present invention;

fig. 14 is a partially enlarged structural schematic view of a calendering assembly of the coating and drying calender according to the preferred embodiment of the present invention;

fig. 15 is a partially enlarged structural schematic view of a conveying adjusting mechanism of a coating and drying calender according to a preferred embodiment of the present invention.

In the figure: 1. a mounting frame; 2. a coating tank; 3. a feed roll; 4. a copper foil body; 5. an intermediate transfer roller; 6. a drying box; 7. a material receiving roller; 8. scraping the strips; 9. a pinch roller; 10. a calender roll; 11. drying the conveying roller; 12. a first motor; 13. a fixing plate; 14. a chute; 15. a first slider; 16. a horizontal bar; 17. a supporting strip; 18. a swing rod; 19. a support plate; 20. a slide rail; 21. a first link; 22. a second slider; 23. a second link; 24. a third link; 25. a fourth link; 26. a first mounting block; 27. installing a frame; 28. a first electric telescopic rod; 29. a calendering box; 30. a second motor; 31. a fixed mount; 32. a second mounting block; 33. a first pressure spring; 34. a cam friction disc; 35. a transmission friction wheel; 36. a first bevel gear; 37. a second taper tooth; 38. a gear; 39. a second electric telescopic rod; 40. mounting a bar; 41. a vertical rod; 42. a rack; 43. a limiting column; 44. a limiting groove; 45. coating a transfer roller; 46. an electromagnetic block; 47. a tension spring; 48. a second pressure spring; 49. a groove; 50. a movable post; 51. a connecting member.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 15, the preferred embodiment of the present invention provides the following technical solutions: the coating, drying and rolling machine comprises an installation frame 1, wherein a coating box 2, a drying box 6 and a rolling box 29 are sequentially arranged on the upper surface of the installation frame 1, the coating box 2 is used for coating the surface of a copper foil body 4, the drying box 6 is used for drying the coated copper foil body 4, and the rolling box 29 is used for rolling the copper foil body 4; an upper group of material scraping mechanisms and a lower group of material scraping mechanisms are arranged in the coating box 2 and enable the surface of the coated copper foil body 4 to be scraped, each group of material scraping mechanisms comprises two opposite link mechanisms, each link mechanism comprises a supporting bar 17 and a supporting plate 19 which are fixed on the coating box 2, a sliding rail 20 is fixedly arranged at the top of the supporting plate 19, a second sliding block 22 is slidably arranged in the sliding rail 20, a first connecting rod 21 is fixedly arranged on the second sliding block 22, a second connecting rod 23 and a third connecting rod 24 are respectively rotatably arranged at two ends where the first connecting rod 21 is located, a fourth connecting rod 25 is rotatably arranged at the end parts, far away from the first connecting rod 21, of the second connecting rod 23 and the third connecting rod 24, a groove 49 is formed in the end part, far away from the second connecting rod 23, of the fourth connecting rod 25, a movable column 50 is slidably arranged in the groove 49, a second pressure spring 48 is connected between the movable column 50 and the groove 49, a scraping strip 8 is transversely and fixedly arranged at one end, far away from the second pressure spring 48, of the movable column 50, the side wall of the supporting bar 17 is fixedly connected with a first mounting block 26, a swinging rod 18 capable of swinging is mounted on the first mounting block 26, the swinging rod 18 is rotatably mounted at the middle part corresponding to the third connecting rod 24, and a first motor 12 capable of driving the third connecting rod 24 to swing is fixedly mounted on the side wall of the first mounting block 26.

As shown in fig. 3, 4, 9, 10 and 11, when the first motor 12 on the first mounting block 26 is driven to operate, the swing rod 18 is driven to swing back and forth, and the second slider 22 where the first connecting rod 21 is located is matched to slide horizontally in the slide rail 20 through the parallelogram structure formed by the first connecting rod 21, the second connecting rod 23, the third connecting rod 24 and the fourth connecting rod 25, as shown in fig. 9, when the upper and lower two swing rods 18 swing in opposite directions, on one hand, the two fourth connecting rods 25 are made to approach each other, and the upper and lower two scraping strips 8 are made to approach to the upper and lower surfaces of the copper foil body 4, and when the two scraping strips 8 are abutted against each other, on the other hand, under the action of the scraping strips 8, the excess slurry on the upper and lower surfaces of the copper foil body 4 can be scraped, so as to ensure the uniformity of the slurry on the upper and lower surfaces of the copper foil body 4, and on the other hand, through the characteristics of the link mechanism, when the two second sliders 22 reach the tail end, through the quick return characteristic of the movement, the second slide block 22 can move left and right in the slide rail 20 at a time, and the copper foil body 4 clamped by the two clamping rollers 9 shakes off the residual slurry on the surface of the coating layer in the quick shaking process of the second slide block 22.

Further, be connected with between two second sliders 22 that scrape material mechanism place and be used for drawing mechanism to copper foil body 4 intermittent type step-by-step, draw and draw the mechanism and constitute by upper and lower two sets of compression roller assembly, every compression roller assembly of group is including fixing the installing frame 27 on second slider 22, and the interior top fixed mounting of installing frame 27 has first electric telescopic handle 28, and the output of first electric telescopic handle 28 has pinch rolls 9 through installed part fixed mounting.

Through the action of the first electric telescopic rod 28, the two clamping rollers 9 clamp the copper foil body 4, when the upper and lower two swing rods 18 swing oppositely, the second slide block 22 can be further driven to horizontally slide in the slide rail 20, at this time, the copper foil body 4 clamped by the two clamping rollers 9 can be pulled forward by one section under the action of the movement of the second slide block 22, as shown in fig. 11, through the arrangement of the second pressure spring 48 and the movable column 50, when the copper foil body 4 is pulled forward, under the action of the two scraping strips 8, the scraping of redundant slurry on the upper and lower surfaces of the copper foil body 4 can be realized, the uniformity of the slurry on the upper and lower surfaces of the copper foil body 4 is ensured, the first electric telescopic rod 28 is controlled to be driven intermittently, namely, when the second slide block 22 moves towards the direction close to the support bar 17 and restores to the original position, the first electric telescopic rod 28 drives the two clamping rollers 9 to separate, thereby, the copper foil body 4 is loosened, and the subsequent transmission and rolling are convenient.

Further, the inner wall of coating case 2 is provided with the transport adjustment mechanism that is used for carrying out the tensioning to copper foil body 4 and adjusts, transport adjustment mechanism includes fixed plate 13 of fixed mounting on coating case 2 inner wall, fixed plate 13 sets up for "T" shape structure, the horizontal section at fixed plate 13 place rotates and installs two coating transfer rollers 45, the mounting groove has been seted up to the vertical section at fixed plate 13 place, the movable block that the mounting groove set up through it rotates installation coating transfer roller 45, mounting groove and the opposite face of movable block fixed mounting respectively have electromagnetic block 46, be connected with extension spring 47 between the electromagnetic block 46, two electromagnetic block 46 magnetism are inhaled and are repelled.

When copper foil body 4 is located coating case 2 inside, because carry adjustment mechanism to set up, as fig. 8 and 14, through carrying out the circular telegram to electromagnetism piece 46, and adjust the magnetism size between the electromagnetism piece 46, because magnetism repels each other between the electromagnetism piece 46, the pulling force effect of cooperation extension spring 47, when the magnetic force size between the electromagnetism piece 46 changes, alright adjust the position that corresponds coating transfer roller 45, thereby reach and adjust the tensioning degree of copper foil body 4, through the tensioning degree to copper foil body 4, be convenient for copper foil body 4 carry out effectual coating inside coating case 2.

Further, a plurality of chutes 14 are formed in the inner wall of the drying box 6, the chutes 14 are rotatably provided with the drying conveying rollers 11 through first sliders 15 arranged in the chutes 14, vertical rods 41 are fixedly arranged at the bottoms of the first sliders 15 where the chutes 14 are located, and limiting columns 43 transversely arranged are fixed at the lower portions of the vertical rods 41.

When the copper foil body 4 which has finished coating enters the inside of the drying box 6, as shown in fig. 8 and 13, by providing a plurality of drying conveyor rollers 11, and since the copper foil body 4 is distributed among the plurality of drying conveyor rollers 11 in an S-shape, the drying time can be prolonged;

further, the second slider 22 at the link mechanism is connected with the horizontal bar 16, one end of the horizontal bar 16, which is far away from the second slider 22, extends to the inside of the drying box 6 and is fixedly provided with the mounting bar 40, and the mounting bar 40 is provided with a plurality of sets of limiting grooves 44 which are oppositely arranged and used for limiting the sliding of the limiting columns 43.

Due to the connection effect of the transverse bar 16, when the second sliding block 22 moves back and forth in the sliding rail 20, the mounting bar 40 can be further driven to move back and forth, and due to the relative arrangement of the limiting groove 44, the limiting column 43 can slide in the limiting groove 44, so that the height between the adjacent drying conveying rollers 11 can be changed, the dynamic drying process of the copper foil body 4 is realized, and the drying efficiency can be further improved.

Further, the front end fixed mounting of mounting bracket 1 has the feed roller 3 that is used for the pay-off, and the middle part fixed mounting of mounting bracket 1 has the middle transfer roller 5 that is used for carrying, and the one end fixed mounting that the feed roller 3 was kept away from to mounting bracket 1 has the receipts material roller 7 that is used for the coil stock.

The copper foil body 4 starts to be unreeled through the feeding roller 3, is driven through the middle conveying roller 5, and is reeled through the material receiving roller 7.

Further, the inside calendering mechanism that is provided with of calendering case 29, calendering mechanism includes mount 31, be provided with two sets of relative calendering subassemblies on the mount 31, every group calendering subassembly is including rotating the second installation piece 32 of installing on mount 31, install the connecting axle through the through-hole on the second installation piece 32, the one end fixed mounting cam friction disc 34 of connecting axle, the other end fixed mounting calendering roller 10 of connecting axle, the connecting axle outer wall cover between cam friction disc 34 and the second installation piece 32 is equipped with first pressure spring 33, install the first meshing drive mechanism that is used for driving calendering roller 10 to incline and deflect from top to bottom on the mount 31.

As shown in fig. 14, the first meshing transmission mechanism can drive the rolling roll 10 on which the second mounting block 32 is located to pitch and deflect up and down, so that pressure values on two sides of the rolling roll 10 are changed, friction transmission is performed between the cam friction disc 34 and the transmission friction wheel 35, that is, when the second motor 30 works, the rolling roll 10 can be continuously driven to rotate, and the rolling deformation stress on different positions on the copper foil body 4 is improved, so that the thickness of the copper foil body 4 is uniform.

Further, still be provided with on mount 31 and be used for driving calendering roller 10 pivoted speed adjusting mechanism, speed adjusting mechanism installs the installation cover on mount 31 including rotating, the installation cover is inside to rotate through first installation axle and installs second cone 37, the other end fixed mounting of installation cover has and is used for driving second cone 37 pivoted second motor 30, the outer wall fixed mounting of installation cover has connecting piece 51, the vertical section rotation at connecting piece 51 place installs the second installation axle, the one end fixed mounting of second installation axle has the first cone 36 with second cone 37 looks meshing, the other end fixed mounting of second installation axle has transmission friction pulley 35, through friction drive between transmission friction pulley 35 and the cam friction disk 34, still be provided with the second meshing drive mechanism that is used for gear 38 to deflect on the mount 31.

As shown in fig. 3, 4, 12 and 14, when the second motor 30 operates, the second bevel gear 37 is driven to rotate, due to the meshing action of the second bevel gear 37 and the first bevel gear 36, the transmission friction wheel 35 is further driven to rotate, the rotation of the calendering rollers 10 can be realized through the friction transmission between the transmission friction wheel 35 and the cam friction disc 34, the copper foil body 4 can be extended and pressed through the rotation of the upper calendering roller 10 and the lower calendering roller 10, the transmission friction wheel 35 can be driven to deflect through the set second meshing transmission, at this time, the cam friction disc 34 moves towards the direction close to the second mounting block 32 and presses the first pressure spring 33, at this time, the transmission efficiency of the transmission friction wheel 35 to the cam friction disc 34 changes, so that the speed of the calendering rollers 10 changes, namely, an asynchronous calendering process is realized, the calendering and the copper foil body 4 is calendered and formed through speed difference, the phenomenon of uneven upper and lower surfaces during rolling deformation can be effectively improved.

Further, the second meshing transmission mechanism comprises a second electric telescopic rod 39 fixedly installed on the fixed frame 31, a rack 42 is fixedly installed at the output end of the second electric telescopic rod 39, a gear 38 meshed with the rack 42 is arranged on the outer wall of the first installation shaft, and the second meshing transmission mechanism is identical to the first meshing transmission mechanism in structure.

When the second meshing transmission mechanism is controlled to work, the second electric telescopic rod 39 can drive the rack 42 to move up and down, and the connecting piece 51 can be further driven to deflect at a certain angle due to the meshing action of the rack 42 and the gear 38.

Further, the outer wall of the reduction rolls 10 is provided with a pressure sensor.

Through the pressure sensor, measured signals can be transmitted to a control module sensor consisting of an online thickness measuring system and a pressure control system, and when the control module sensor monitors that the thickness of the copper foil body 4 is not uniform, the first meshing transmission mechanism is controlled to work.

The working principle is as follows: when the coating and drying calender is used, a negative active material, a first conductive agent, a second conductive agent and a bonding agent are added into deionized water, and are fully stirred to obtain a negative slurry, and the negative slurry is poured into a coating box 2, as shown in figures 1 to 8, a copper foil body 4 starts to be unreeled through a feed roller 3, sequentially passes through a conveying adjusting mechanism arranged in the coating box 2 and a middle conveying roller 5 and two groups of material scraping mechanisms arranged at the top of the coating box 2, then passes through drying conveying rollers 11 arranged in a drying box 6 in an S-shaped distribution manner, passes through a calendering component arranged in a calendering box 29, can be calendered on the copper foil body 4, and finally is rolled through a material collecting roller 7;

when the copper foil body 4 is positioned inside the coating box 2, as shown in fig. 8 and 14, the electromagnetic blocks 46 are electrified and the magnetic strength between the electromagnetic blocks 46 is adjusted, and as the magnetism between the electromagnetic blocks 46 is repelled and the tension of the tension spring 47 is matched, when the magnetic force between the electromagnetic blocks 46 is changed, the position of the corresponding coating conveying roller 45 can be adjusted, so that the tension degree of the copper foil body 4 is adjusted, and the copper foil body 4 can be conveniently and effectively coated inside the coating box 2 by the tension degree of the copper foil body 4;

as shown in fig. 3, 4, 9, 10 and 11, when the first motor 12 on the first mounting block 26 is driven to operate, the swing rod 18 can be driven to swing back and forth, the second slider 22 on which the first connecting rod 21 is located can slide horizontally in the slide rail 20 through the parallelogram structure formed by the first connecting rod 21, the second connecting rod 23, the third connecting rod 24 and the fourth connecting rod 25, as shown in fig. 9, when the upper and lower two swing rods 18 swing in opposite directions, on one hand, the two fourth connecting rods 25 are made to approach each other, and the upper and lower two scraping strips 8 are made to approach to the upper and lower surfaces of the copper foil body 4, when the two scraping strips 8 abut against each other, at the same time, the two clamping rollers 9 clamp the copper foil body 4 through the action of the first electric telescopic rod 28, and when the upper and lower two swing rods 18 swing in opposite directions, the second slider 22 can be further driven to slide horizontally in the slide rail 20, and the copper foil body 4 clamped by the two clamping rollers 9 at this time, under the action of the movement of the second slider 22, the copper foil body 4 can be pulled forward by a section, as shown in fig. 11, through the arrangement of the second pressure spring 48 and the movable column 50, when the copper foil body 4 is pulled forward, under the action of the two scraping strips 8, the excessive slurry on the upper surface and the lower surface of the copper foil body 4 can be scraped;

the first electric telescopic rod 28 is controlled to be driven intermittently, namely, when the second sliding block 22 moves towards the direction close to the supporting strip 17 and recovers the original position process, the first electric telescopic rod 28 drives the two clamping rollers 9 to separate, so that the copper foil body 4 is loosened, and subsequent transmission and rolling are facilitated.

The coating and drying calender of the preferred embodiment of the invention ensures the uniformity of the sizing agent on the upper surface and the lower surface of the copper foil body, improves the drying efficiency through the dynamic drying process of the copper foil body, and realizes the thickness uniformity in the calendering process.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The detachable installation mode has various modes, for example, a mode of matching with a buckle through plugging, for example, a mode of connecting through a bolt, and the like.

The conception, the specific structure and the technical effects of the present invention are clearly and completely described above in connection with the embodiments and the accompanying drawings, so that the objects, the features and the effects of the present invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliaries according to specific implementation conditions.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims

1. Coating stoving calender includes mounting bracket (1), its characterized in that: the upper surface of the mounting rack (1) is sequentially provided with a coating box (2), a drying box (6) and a rolling box (29); the coating box (2) is internally provided with an upper group and a lower group of scraping mechanisms which enable the surface of the coated copper foil body (4) to be scraped flat, each group of scraping mechanisms comprises two opposite-arranged link mechanisms, each link mechanism comprises a supporting strip (17) and a supporting plate (19) which are fixed on the coating box (2), a sliding rail (20) is fixedly arranged at the top of the supporting plate (19), a second sliding block (22) is arranged inside the sliding rail (20), a first connecting rod (21) is fixedly arranged on the second sliding block (22), the two ends of the first connecting rod (21) are respectively rotatably provided with a second connecting rod (23) and a third connecting rod (24), the second connecting rod (23) and the end part of the third connecting rod (24) far away from the first connecting rod (21) are rotatably provided with a fourth connecting rod (25), and the end part of the fourth connecting rod (25) far away from the second connecting rod (23) is provided with a groove (49), recess (49) inside slidable mounting has movable post (50), be connected with second pressure spring (48) between activity post (50) and recess (49), the horizontal fixed mounting of one end that second pressure spring (48) were kept away from in activity post (50) has scraping strip (8), the first installation piece (26) of the lateral wall fixedly connected with of support bar (17), but install wobbling pendulum rod (18) on first installation piece (26), pendulum rod (18) and the rotation of the middle part that corresponds third connecting rod (24) are installed, first installation piece (26) lateral wall fixed mounting has the first motor (12) of drive third connecting rod (24) wobbling.

2. The coating and drying calender according to claim 1, wherein: scrape and be connected with between two second sliders (22) at material mechanism place and be used for drawing mechanism to copper foil body (4) intermittent type step-by-step, draw and draw the mechanism and constitute by upper and lower two sets of compression roller assembly, every group compression roller assembly is including fixing installing frame (27) on second slider (22), the interior top fixed mounting of installing frame (27) has first electric telescopic handle (28), the output of first electric telescopic handle (28) has pinch rolls (9) through installed part fixed mounting.

3. The coating and drying calender according to claim 1, wherein: the inner wall of coating case (2) is provided with and is used for carrying out the transport adjustment mechanism that the tensioning was adjusted to copper foil body (4), carry adjustment mechanism to include fixed plate (13) of fixed mounting on coating case (2) inner wall, fixed plate (13) set up for "T" shape structure, the horizontal section at fixed plate (13) place rotates and installs two coating transfer rollers (45), the mounting groove has been seted up to the vertical section at fixed plate (13) place, the movable block that the mounting groove set up through it rotates installation coating transfer roller (45), the mounting groove is fixed mounting respectively with the opposite face of movable block has electromagnetic block (46), be connected with extension spring (47) between electromagnetic block (46), two electromagnetic block (46) magnetism is inhaled and is repelled.

4. The coating and drying calender according to claim 1, wherein: a plurality of chutes (14) are formed in the inner wall of the drying box (6), the chutes (14) are rotatably mounted with the drying conveying rollers (11) through first sliding blocks (15) arranged in the chutes (14), vertical rods (41) are fixedly mounted at the bottoms of the first sliding blocks (15) where the chutes (14) are located, and transverse limiting columns (43) are fixed on the lower portions of the vertical rods (41).

5. The coating and drying calender according to claim 1, wherein: be connected with horizontal bar (16) on second slider (22) at link mechanism place, the one end that second slider (22) were kept away from in horizontal bar (16) extends to stoving case (6) inside and fixed mounting has mounting bar (40), set up relative multiunit that sets up on mounting bar (40) and supply spacing gliding spacing groove (44) of spacing post (43).

6. The coating and drying calender according to claim 1, wherein: the front end fixed mounting of mounting bracket (1) has feed roller (3) that are used for the pay-off, the middle part fixed mounting of mounting bracket (1) has middle transfer roller (5) that are used for carrying, the one end fixed mounting that feed roller (3) were kept away from in mounting bracket (1) has receipts material roller (7) that are used for the coil stock.

7. The coating and drying calender according to claim 1, wherein: the utility model discloses a calendering box, including calendering box (29), calendering box, connecting shaft, cam friction disk and second installation piece (32), calendering box (29) is inside to be provided with calendering mechanism, calendering mechanism includes mount (31), be provided with two sets of relative calendering subassemblies on mount (31), every group calendering subassembly is including rotating second installation piece (32) of installing on mount (31), install the connecting shaft through the through-hole on second installation piece (32), the one end fixed mounting cam friction disk (34) of connecting shaft, the other end fixed mounting calendering roller (10) of connecting shaft, the connecting shaft outer wall cover between cam friction disk (34) and second installation piece (32) is equipped with first pressure spring (33), install on mount (31) and be used for driving the first meshing drive mechanism that calendering roller (10) inclined from top to bottom and deflect.

8. The coating drying calender according to claim 7, characterized in that: the fixed frame (31) is also provided with a speed regulating mechanism for driving the calendering roller (10) to rotate, the speed regulating mechanism comprises a mounting sleeve rotatably mounted on the fixing frame (31), a second bevel gear (37) is rotatably mounted in the mounting sleeve through a first mounting shaft, the other end of the mounting sleeve is fixedly provided with a second motor (30) for driving the second conical tooth (37) to rotate, a connecting piece (51) is fixedly arranged on the outer wall of the mounting sleeve, a second mounting shaft is rotatably arranged at the vertical section where the connecting piece (51) is positioned, one end of the second mounting shaft is fixedly provided with a first bevel gear (36) meshed with a second bevel gear (37), the other end of the second mounting shaft is fixedly provided with a transmission friction wheel (35), the transmission friction wheel (35) and the cam friction disc (34) are in friction transmission, the fixed frame (31) is also provided with a second meshing transmission mechanism for deflection of the gear (38).

9. The coating drying calender according to claim 8, characterised in that: the second meshing transmission mechanism comprises a second electric telescopic rod (39) fixedly mounted on the fixing frame (31), a rack (42) is fixedly mounted at the output end of the second electric telescopic rod (39), a gear (38) meshed with the rack (42) is arranged on the outer wall of the first mounting shaft, and the second meshing transmission mechanism is identical to the first meshing transmission mechanism in structure.

10. The coating drying calender according to claim 7, characterized in that: and a pressure sensor is arranged on the outer wall of the calendering roller (10).