CN115072438B

CN115072438B - Casting winding device for lithium battery upper aluminum plastic film production line

Info

Publication number: CN115072438B
Application number: CN202210805115.2A
Authority: CN
Inventors: 富坚定; 赵金龙; 荆正军
Original assignee: Jiangsu Hua Gu New Materials Co ltd
Current assignee: WUXI HUAJING NEW MATERIAL CO LTD
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-05-12
Anticipated expiration: 2042-07-08
Also published as: CN115072438A

Abstract

The invention relates to a casting rolling device for an aluminum-plastic film production line on a lithium battery, which comprises a frame body, a rolling roller arranged in the frame body and used for rolling the aluminum-plastic film, a rolling motor connected with the rolling roller, a lever, a pinch roller, a tensioning roller and an adjusting device, wherein the lever is rotatably arranged in the frame body; according to the invention, the diameter change of the aluminum-plastic film is continuously rolled by the rolling roller, the pressing roller moves along with the rolling roller and drives the lever to rotate along the circumferential direction, the tension roller at the other end of the lever moves downwards to contact with the aluminum-plastic film in the transmission process, the effects of guiding and further flattening the aluminum-plastic film are achieved, the situation that the surface of the aluminum-plastic film is not wrinkled is ensured, in addition, the aluminum-plastic film in the transmission process has reverse force on the tension roller in the pressing process of the tension roller, and the pressing roller is driven to continuously press the rolling roller to roll the aluminum-plastic film together under the auxiliary effect of the adjusting device, so that the phenomenon that bubbles do not appear in the rolling of the aluminum-plastic film to bulge the surface of the aluminum-plastic film is ensured.

Description

Casting winding device for lithium battery upper aluminum plastic film production line

Technical Field

The invention relates to the technical field of casting and winding in aluminum-plastic film production, in particular to a casting and winding device for an aluminum-plastic film production line on a lithium battery.

Background

Along with the rapid development of the lithium battery market, as the lithium ion battery of the aluminum plastic film has the advantages of large capacity, light weight, high safety and the like, the common structure of the aluminum plastic film is composed of three layers of materials, all the layers are bonded through adhesives to form the aluminum plastic film, and the aluminum plastic film is produced through thermal compounding of an aluminum foil base material and one or more layers of polar or nonpolar polymers which are subjected to single-layer casting or coextrusion casting of a casting machine, cooling and winding by a winding device, so that the whole production process is completed;

in the casting film production line of the aluminum plastic film, the rolling is usually used as the last procedure, and the produced aluminum plastic film is rolled and collected, and the general working principle is as follows: the winding roller on the winding machine is rotated by a motor, and the aluminum-plastic film on the winding roller is wound and collected;

the traditional rolling mode is to utilize the difference in height of staggering between the wind-up rolls to roll, although can realize the purpose of rolling, but take place the fold easily and lead to film surface inhomogeneous at the rolling in-process to also wrap in the bubble in the rolling in-process easily, the film surface that causes after the film cooling has the phenomenon of ripple, influences product quality.

In order to solve the problems, the invention provides a tape casting winding device for an aluminum plastic film production line on a lithium battery.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects of the prior art, adapt to the actual needs, and provide a casting winding device for an aluminum plastic film production line on a lithium battery so as to solve the technical problems.

(2) Technical proposal

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

the utility model provides a last casting coiling mechanism that uses of plastic-aluminum membrane production line on lithium cell, includes the support body and locates the wind-up roll that is used for rolling the plastic-aluminum membrane in the support body, be equipped with the wind-up motor that links to each other with the wind-up roll on the support body, still include lever, pinch roller, tensioning roller and adjusting device, the lever is rotatable locate in the support body, one end rotation of lever is equipped with the pinch roller that is used for compressing tightly the plastic-aluminum membrane on the wind-up roll, the other end of lever is equipped with the tensioning roller that is located wind-up roll one side, the pinch roller follows the diameter change control lever of rolling the plastic-aluminum membrane on the wind-up roll rotates around lever rotation point along circumference, the tensioning roller follows the lever rotates and compresses tightly the plastic-aluminum membrane, be equipped with the adjusting device who links to each other with the lever in the support body.

Further, the lever includes fixed frame and dead lever, the dead lever rotates to locate in the support body, the fixed frame is fixed to be located on the dead lever, fixed frame both ends are equipped with pinch roller and tensioning roller respectively, be equipped with the transfer line between dead lever and the tensioning roller in the fixed frame, adjusting device links to each other with the transfer line.

Further, still include direction regulating part, fixing base, distance regulating part and static eliminator, the direction regulating part is located on the dead lever, be equipped with the fixing base on the direction regulating part, be equipped with distance regulating part on the fixing base, the tip of distance regulating part is equipped with and is the static eliminator that sets up perpendicularly with the plastic-aluminum membrane.

Further, the direction regulating piece includes the annular piece, be equipped with the through-hole on the annular piece, be equipped with the connecting rod in the through-hole, be equipped with a plurality of connecting holes along circumference equidistance on the dead lever, be equipped with the internal thread in the connecting hole, the connecting rod tip is equipped with the external screw thread with internal thread looks adaptation.

Further, the distance adjusting piece comprises a threaded rod and a fixed plate, the threaded rod is connected to the fixed seat in a threaded mode, the fixed plate is rotatably arranged at the end portion of the threaded rod, and the static eliminator is arranged on the fixed plate.

Further, adjusting device includes locating lever and extensible member, the locating lever is located in the support body, extensible member one end is connected with the locating lever rotation, the extensible member other end links to each other with the transfer line.

Further, the telescopic part comprises a linear steering engine and a pushing rod, the linear steering engine is rotationally arranged on the positioning rod, the pushing rod is arranged at the output end of the linear steering engine, the pushing rod penetrates through the transmission rod, and the lever is arranged on the pushing rod in a sliding mode and has a sliding length.

Further, the telescopic piece further comprises a sliding rod, the sliding rod is arranged at the end part of the pushing rod, the transmission rod is arranged at the outer side of the sliding rod in a sliding mode, and a limiting piece is arranged at the other end part of the sliding rod.

Further, the adjusting device further comprises an elastic piece, two ends of the elastic piece are respectively sleeved on the positioning rod and the transmission rod, and the elastic piece controls the compaction roller to compact the aluminum-plastic film along with the diameter change of the aluminum-plastic film wound on the winding roller.

Further, the elastic piece comprises a tension spring, and two ends of the tension spring are respectively arranged on the fixed rod and the transmission rod; the number of the tension springs is multiple, and the tension springs are symmetrically arranged by the central axis of the positioning rod.

(3) The beneficial effects are that:

according to the invention, by arranging the lever, the pinch roller, the tension roller and the adjusting device, the pinch roller continuously winds the aluminum-plastic film, the pinch roller can move along with the pinch roller and drive the lever to rotate along the circumferential direction, the tension roller at the other end of the lever moves downwards to contact with the aluminum-plastic film in the transmission process, the effects of guiding and further flattening the aluminum-plastic film are achieved, the situation that the surface of the aluminum-plastic film cannot be wrinkled is ensured, in addition, the aluminum-plastic film in the transmission process has reverse force on the pinch roller in the tension roller pressing process, and the pinch roller is driven to continuously press the pinch roller to wind the aluminum-plastic film under the auxiliary action of the adjusting device, so that the phenomenon that bubbles do not appear in the aluminum-plastic film winding process to swell the surface of the aluminum-plastic film is ensured.

Drawings

FIG. 1 is a schematic diagram of a sectional structure of a casting and rolling device used on an aluminum plastic film production line on a lithium battery;

FIG. 2 is a cross-sectional structure diagram of a lever of a casting winding device on an aluminum-plastic film production line on a lithium battery;

FIG. 3 is a three-dimensional structure diagram of a lever of a casting winding device on an aluminum-plastic film production line on a lithium battery;

FIG. 4 is a cross-sectional structure diagram of a direction adjusting piece of a casting winding device on an aluminum-plastic film production line on a lithium battery;

fig. 5 is an enlarged view of a casting winding device A on the production line of the aluminum plastic film on the lithium battery.

The reference numerals are as follows:

the device comprises a frame body 1, a winding roller 3, a winding motor 4, a lever 5, a fixed frame 51, a fixed rod 52, a transmission rod 53, a compression roller 6, a tensioning roller 7, an adjusting device 8, a positioning rod 81, a telescopic piece 82, a linear steering engine 821, a pushing rod 822, a sliding rod 823, a limiting piece 824, an elastic piece 83, a tension spring 831, a direction adjusting piece 9, a ring-shaped block 91, a through hole 92, a connecting rod 93, a connecting hole 94, a fixed seat 10, a distance adjusting piece 11, a threaded rod 111, a fixed plate 112 and a static eliminator 12.

Detailed Description

The invention is further illustrated by the following examples in connection with figures 1-5:

as shown in fig. 1, fig. 2 and fig. 3, the casting winding device for the aluminum-plastic film production line on the lithium battery comprises a frame body 1 and a winding roller 3 arranged in the frame body 1 and used for winding the aluminum-plastic film, a winding motor 4 connected with the winding roller 3 is arranged on the frame body 1, the casting winding device also comprises a lever 5, a pressing roller 6, a tensioning roller 7 and an adjusting device 8, the lever 5 is rotatably arranged in the frame body 1, one end part of the lever 5 is rotatably provided with the pressing roller 6 used for pressing the aluminum-plastic film on the winding roller 3, the other end part of the lever 5 is provided with the tensioning roller 7 positioned at one side of the winding roller 3, the pressing roller 6 controls the lever 5 to rotate around the rotating point of the lever 5 along with the diameter change of the aluminum-plastic film wound on the winding roller 3, the tensioning roller 7 rotates along with the lever 5 to press the aluminum-plastic film, and the adjusting device 8 connected with the lever 5 is arranged in the frame body 1;

the lever 5 comprises a fixed frame 51 and a fixed rod 52, the fixed rod 52 is rotatably arranged in the frame body 1, a bearing is arranged in the frame body 1, the fixed rod 52 is arranged in the bearing, the fixed frame 51 is fixedly arranged on the fixed rod 52, the two ends of the fixed frame 51 are respectively provided with a compression roller 6 and a tensioning roller 7, a transmission rod 53 positioned between the fixed rod 52 and the tensioning roller 7 is arranged in the fixed frame 51, and the adjusting device 8 is connected with the transmission rod 53;

the distance between the adjusting device 8 and the fixed rod 52 is larger than the distance between the pinch roller 6 and the fixed rod 52, the fixed frame 51 is of a nonlinear design, the fixed frame 51 comprises two side arms, a transmission rod 53, a resistance arm shaft and a linkage arm shaft, a plurality of mounting holes which are distributed in sequence are formed on the two side arms, the linkage arm shaft is fixedly connected with the mounting holes at one ends of the two side arms, the resistance arm shaft is fixedly connected with the mounting holes at the other ends of the two side arms, the pinch roller 6 is arranged at the outer side of the resistance arm shaft, the adjusting device 8 is arranged at the outer side of the transmission rod 53, the tensioning roller 7 is arranged at the outer side of the linkage arm shaft, and the fixed rod 52 is fixedly connected with the mounting holes in the middle of the two side arms; the fixed frame 51 can be ensured to radially rotate around the fixed rod 52, and the design of the lever 5 which is a nonlinear lever can save the occupied space of the whole structure, and avoid contact and collision with other parts;

further, the adjusting device 8 comprises a positioning rod 81 and a telescopic piece 82, the positioning rod 81 is arranged in the frame body 1, one end of the telescopic piece 82 is rotationally connected with the positioning rod 81, and the other end of the telescopic piece 82 is connected with the transmission rod 53;

further, the telescopic member 82 includes a linear steering engine 821 and a pushing rod 822, the linear steering engine 821 is rotatably disposed on the positioning rod 81, the pushing rod 822 is disposed at an output end of the linear steering engine 821, the pushing rod 822 penetrates through the transmission rod 53, and the lever 5 is slidably disposed on the pushing rod 822 and has a sliding length.

Further, the telescopic member 82 further comprises a sliding rod 823, the sliding rod 823 is arranged at the end part of the pushing rod 822, the transmission rod 53 is arranged on the outer side of the sliding rod 823 in a sliding mode, a limiting member 824 is arranged at the other end part of the sliding rod 823, the limiting member 824 is a fixing bolt, and external threads are arranged at the end part of the sliding rod 823 and are in threaded connection with the fixing bolt;

the sliding length of the lever 5 is between the limiting piece 824 and the pushing rod 822, the design that the lever 5 slides on the sliding rod 823 is adopted, the lever 5 can axially slide, the sliding rod 823 is ensured not to be separated from the lever 5 by the limiting piece 824, the fact that the elastic piece 83 is prevented from being transmitted to the thrust linear steering engine 821 in the process of stretching and shortening the blocking force of the elastic piece 83 when the pressure roller 6 is in a pressing state can be ensured, and meanwhile the linear steering engine 821 is ensured not to interfere the stretching and shortening of the elastic piece 83;

the initial position of the pinch roller 6 can be changed and adjusted, so that the pinch roller is adjusted to a proper position according to the positions of different wind-up rollers 3 to press downwards, the whole device is not required to be detached and reinstalled, operators are facilitated, and the suitability is better during use.

Further, the adjusting device 8 further comprises an elastic piece 83, two ends of the elastic piece 83 are respectively sleeved on the positioning rod 81 and the transmission rod 53, and the elastic piece 83 controls the compressing roller 6 to compress the aluminum-plastic film along with the diameter change of the aluminum-plastic film wound on the winding roller 3.

Further, the elastic member 83 includes a tension spring 831, and two ends of the tension spring 831 are respectively disposed on the positioning rod 81 and the transmission rod 53; the tension springs 831 are arranged symmetrically with the central axis of the positioning rod 81 in number;

the number of the tension springs 831 is multiple and symmetrically arranged on the central axis of the positioning rod 81, and the design of the double tension springs 831 ensures that the aluminum plastic film is subjected to the balanced downward pressure of the pinch rollers 6, so that the transmission efficiency and reliability are improved.

In this embodiment, as shown in fig. 3, 4 and 5, the device further comprises a direction adjusting member 9, a fixing seat 10, a distance adjusting member 11 and a static eliminator 12, wherein the direction adjusting member 9 is arranged on a fixing rod 52, the fixing seat 10 is arranged on the direction adjusting member 9, the distance adjusting member 11 is arranged on the fixing seat 10, and the static eliminator 12 which is perpendicular to the aluminum plastic film is arranged at the end part of the distance adjusting member 11;

further, the direction adjusting member 9 includes a ring-shaped block 91, a through hole 92 is formed in the ring-shaped block 91, a connecting rod 93 is arranged in the through hole 92, a plurality of connecting holes 94 are circumferentially equidistant on the fixing rod 52, internal threads are arranged in the connecting holes, and external threads matched with the internal threads are arranged at the end parts of the connecting rod 93.

Further, the distance adjusting member 11 includes a threaded rod 111 and a fixing plate 112, the threaded rod 111 is screwed on the fixing base 10, the fixing plate 112 is rotatably disposed at the end of the threaded rod 111, and the static eliminator 12 is disposed on the fixing plate 112;

wherein, dead lever 52 includes horizontal pole and U type pole, and the horizontal pole links to each other with fixed frame 51, and annular piece 91 installs on the horizontal pole both ends, installs the U type pole on the horizontal pole both ends, and fixing base 10 is located U type pole downside, and threaded rod 111 is located the U type opening of U type pole.

The invention has the beneficial effects that:

according to the invention, by arranging the lever 5, the pinch roller 6, the tension roller 7 and the adjusting device 8, the pinch roller 6 can move along with the change of the diameter of the aluminum-plastic film continuously rolled by the rolling roller 3 and drive the lever 5 to rotate along the circumferential direction, the tension roller 7 at the other end of the lever 5 moves downwards to contact with the aluminum-plastic film in the process of conveying, the effects of guiding and further flattening the aluminum-plastic film are achieved, the situation that the surface of the aluminum-plastic film cannot be wrinkled is ensured, in addition, the aluminum-plastic film in the process of conveying has reverse force on the pinch roller 7 in the process of pressing the tension roller 7, and the pinch roller 6 is driven to continuously press the rolling position of the aluminum-plastic film by the adjusting device 8 together, so that the phenomenon that bubbles bulge on the surface of the aluminum-plastic film cannot occur in the rolling process of the aluminum-plastic film is ensured.

Working principle: firstly, a winding motor 4 is started to drive a winding roller 3 to continuously wind an aluminum-plastic film, a pressing roller 6 presses the winding roller 3 to wind the aluminum-plastic film under the action of a fixed frame 51 and a tension spring 831, and a static eliminator 12 utilizes a discharging rod to generate positive and negative charges to neutralize charges carried on the surface of an object and reduce dust adsorbed on the aluminum-plastic film;

then, as the diameter of the aluminum-plastic film wound on the winding roller 3 becomes larger, the pressing roller 6 moves along with the movement and drives the lever 5 to rotate along the circumferential direction, the tensioning roller 7 at the other end of the lever 5 moves downwards to be in contact with the aluminum-plastic film in the transmission process and has a downward pressure on the aluminum-plastic film, the aluminum-plastic film also has a reverse force on the tensioning roller 7, and the pressing roller 6 at the other end of the lever 5 also continuously presses down the winding position of the aluminum-plastic film wound on the winding roller 3, so that the guiding flattening and pressing operation on the aluminum-plastic film are synchronously realized;

in addition, as the diameter of the aluminum plastic film on the wind-up roller 3 becomes larger, the conveying angle of the aluminum plastic film in conveying can be changed, and in the rotating process of the lever 5, the static eliminator 12 can rotate along with the fixed rod 52, so that the static dust collection can be performed by adapting to the conveying angle of the aluminum plastic film in conveying, and the static dust collection effect on the aluminum plastic film can be continuously achieved.

The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a last casting coiling mechanism that is used in plastic-aluminum membrane production line of lithium cell, includes support body (1) and locates wind-up roll (3) that are used for rolling up the plastic-aluminum membrane in support body (1), be equipped with wind-up motor (4) that link to each other with wind-up roll (3) on support body (1), characterized in that still includes lever (5), pinch roll (6), tensioning roller (7) and adjusting device (8), lever (5) rotatable locate in support body (1), one end rotation of lever (5) is equipped with pinch roll (6) that are used for compressing up the plastic-aluminum membrane on wind-up roll (3), the other end of lever (5) is equipped with tensioning roller (7) that are located wind-up roll (3) one side, pinch roll (6) are along with diameter variation control lever (5) of rolling up the plastic-aluminum membrane on wind lever (5) rotation point along with lever (5) rotation compresses tightly the plastic-aluminum membrane, be equipped with adjusting device (8) that link to each other with lever (5) in support body (1). The lever (5) comprises a fixed frame (51) and a fixed rod (52), the fixed rod (52) is rotationally arranged in the frame body (1), the fixed frame (51) is fixedly arranged on the fixed rod (52), two ends of the fixed frame (51) are respectively provided with a compression roller (6) and a tensioning roller (7), a transmission rod (53) arranged between the fixed rod (52) and the tensioning roller (7) is arranged in the fixed frame (51), the adjusting device (8) is connected with the transmission rod (53), the adjusting device (8) comprises a positioning rod (81) and a telescopic piece (82), the positioning rod (81) is arranged in the frame body (1), one end of the telescopic piece (82) is rotationally connected with the positioning rod (81), the other end of the telescopic piece (82) is connected with the transmission rod (53), the telescopic piece (82) comprises a linear steering engine (821) and a pushing rod (822), the output end of the linear steering engine (821) is rotationally arranged on the positioning rod (81), the pushing rod (822) is provided with a pushing rod (823), the length of the sliding rod (823) is further arranged on the sliding rod (5), the sliding rod (823) is arranged at the end part of the pushing rod (822), the transmission rod (53) is arranged on the outer side of the sliding rod (823) in a sliding mode, and a limiting piece (824) is arranged at the other end part of the sliding rod (823).

2. The casting and rolling device for the aluminum plastic film production line on the lithium battery as claimed in claim 1, wherein: still include direction regulating part (9), fixing base (10), distance regulating part (11) and static eliminator (12), on dead lever (52) are located to direction regulating part (9), be equipped with fixing base (10) on direction regulating part (9), be equipped with distance regulating part (11) on fixing base (10), the tip of distance regulating part (11) is equipped with static eliminator (12) that are perpendicular setting with the plastic-aluminum membrane.

3. The casting and rolling device for the aluminum plastic film production line on the lithium battery as claimed in claim 2, wherein: the direction adjusting piece (9) comprises a ring-shaped block (91), a through hole (92) is formed in the ring-shaped block (91), a connecting rod (93) is arranged in the through hole (92), a plurality of connecting holes (94) are formed in the fixing rod (52) at equal intervals along the circumferential direction, internal threads are arranged in the connecting holes, and external threads matched with the internal threads are formed in the end portions of the connecting rod (93).

4. The casting and rolling device for the aluminum plastic film production line on the lithium battery as claimed in claim 2, wherein: the distance adjusting piece (11) comprises a threaded rod (111) and a fixed plate (112), the threaded rod (111) is connected to the fixed seat (10) in a threaded mode, the fixed plate (112) is rotatably arranged at the end portion of the threaded rod (111), and the static eliminator (12) is arranged on the fixed plate (112).

5. The casting and rolling device for the aluminum plastic film production line on the lithium battery as claimed in claim 4, wherein: the adjusting device (8) further comprises an elastic piece (83), two ends of the elastic piece (83) are respectively sleeved on the positioning rod (81) and the transmission rod (53), and the elastic piece (83) controls the pressing roller (6) to press the aluminum-plastic film along with the diameter change of the aluminum-plastic film wound on the winding roller (3).

6. The casting and rolling device for the aluminum plastic film production line on the lithium battery as claimed in claim 5, wherein: the elastic piece (83) comprises a tension spring (831), and two ends of the tension spring (831) are respectively arranged on the positioning rod (81) and the transmission rod (53); the tension spring (831) is a plurality of and is symmetrically arranged by the central axis of the positioning rod (81).