CN206126432U - Tail winding mechanism of winder - Google Patents

Abstract

The present application relates to the field of battery technology, and in particular to a tail winding mechanism of a winding machine. It includes a tension swing roller device, a roller passing device and a control device. The roller passing device includes a roller passing and a pressure sensor installed on the passing roller. The pressure sensor is used to detect the pressure of the sheet on the passing roller. The control device is connected with the tension swing roller The device is electrically connected with the pressure sensor, and the control device is used to control the swing of the tension balance roller device according to the pressure detected by the pressure sensor. In this technical solution, the pressure sensor on the passing roller device detects the tension of the sheet in the process of conveying in real time, and transmits a real-time feedback to the tension swing roller device, and then adjusts the tension of the sheet during conveyance through the tension swing roller device. Tension, to ensure that the tension is consistent during the transfer process of the material, so as to avoid the phenomenon of crumpling and wrinkling of the material after winding, reduce the processing difficulty of subsequent coating, cold pressing or winding, and improve the final Product voltage and current stability.

Description

Tail winding mechanism of winding machine

technical field

The present application relates to the field of battery technology, and in particular to a tail winding mechanism of a winding machine.

Background technique

With the development of the new energy industry, electric vehicles have gradually entered everyone's life. For an expensive electric car, everyone has higher and higher requirements on the power source, that is, the battery, especially for the battery used for cycle charging, the battery includes a pole piece set, and the pole piece set includes a positive pole piece , a negative electrode sheet and a separator spaced between the positive electrode sheet and the negative electrode sheet, and the electrode sheet group is wound by an automatic winding machine to form a bare cell.

At present, due to the higher and higher requirements for the safety performance of the battery, the gravure printing equipment currently used to make the pole piece of the bare battery, due to the unstable tension, causes the phenomenon of crumpling and wrinkling on the pole piece, which leads to subsequent Coating, cold pressing or winding have certain processing difficulties, and have certain influence on the stability of voltage and current of the final product.

Utility model content

The present application provides a tail winding mechanism of a winding machine, which can solve the above problems.

An embodiment of the present application provides a tail winding mechanism of a winding machine, including: a tension swing roller device, a roller passing device and a control device,

The roller passing device includes a roller and a pressure sensor installed on the roller, the pressure sensor is used to detect the pressure of the sheet on the roller,

The control device is electrically connected to the tension pendulum roller device and the pressure sensor respectively, and the control device is used to control the swing of the tension pendulum roller device according to the pressure detected by the pressure sensor.

Preferably, a pressing device for pressing the material sheet is also included, and the pressing device and the tension swing roller device are arranged in sequence in the conveying direction of the material sheet.

Preferably,

In the conveying direction of the material sheet, the pressing device, the passing roller device and the tension pendulum roller device are arranged in sequence.

Preferably,

The pressing device includes a first pressing roller, a second pressing roller and a driving assembly, the driving assembly is connected to at least one of the first pressing roller and the second pressing roller, and the driving assembly is used for The first pressing roller and the second pressing roller are driven to move relative to each other so as to compress the material sheet.

Preferably,

One of the first pressing roller and the second pressing roller is a steel roller, and the other is a rubber roller.

Preferably, it also includes a deflection correction device and a winding device, the deflection correction device includes a detection body and a driving body that are both electrically connected to the control device,

The detection body is arranged between the tension swing device and the winding device, and the detection body is used to detect the offset of the material between the tension swing roller device and the winding device,

The driving body is connected with the winding device, and the driving body is used to drive the winding device to move,

The control device is further configured to control the drive body to drive the winding device to move according to the offset detected by the detection body.

Preferably, it also includes a rewinding device and a rewinding sensor optical eye for electrical connection with the control device, the rewinding sensory photocell is used to detect the winding of the material on the rewinding drum of the rewinding device Thickness, the control device is also used to control the swing of the pendulum roller device according to the winding thickness of the material sheet.

Preferably, it also includes a winding device and a support roller for supporting the material sheet, and the tension swing roller device, the support roller and the winding device are sequentially arranged in the conveying direction of the material sheet.

Preferably,

The tension swing roller device includes a tension swing roller and a tension cylinder, and the tension cylinder is connected with the tension swing roller to drive the tension swing roller to swing.

Preferably,

The tail winding mechanism also includes a frame,

The tension swing roller device also includes a swing roller fixing plate and a cylinder fixing plate,

One side of the pendulum roller fixing plate is rotatably connected with the frame, and the other side is rotatably connected with the pendulum roller,

One end of the cylinder fixing plate is connected with the frame, and the other end is rotatably connected with the tension cylinder.

The technical solutions provided in the embodiments of the present application can achieve the following beneficial effects:

The tail winding mechanism of the winding machine provided in the embodiment of the present application detects the tension of the sheet in real time through the pressure sensor on the roller passing device, and transmits a real-time feedback to the tension pendulum roller device, and then passes the tension The pendulum roller device adjusts the tension of the material sheet during the conveying process to ensure that the tension of the material sheet is consistent during the conveying process without too much fluctuation, so as to avoid the phenomenon of crumpling and wrinkling of the material sheet after winding. It reduces the processing difficulty of subsequent coating, cold pressing or winding, and improves the stability of voltage and current of the final product.

It is to be understood that both the foregoing general description and the following detailed description are exemplary only and are not restrictive of the application.

Description of drawings

Fig. 1 is a structural schematic diagram of a tail winding mechanism of a winding machine provided by an embodiment of the present application;

Fig. 2 is a structural schematic diagram of the tail winding mechanism of the winding machine provided by another embodiment of the present application;

Fig. 3 is a structural schematic diagram of the tail winding mechanism of the winding machine provided by another embodiment of the present application;

Fig. 4 is a schematic structural view of the tension swing roller device of the tail winding mechanism provided by the embodiment of the present application;

Fig. 5 is a structural schematic diagram of the pressing device of the tail winding mechanism provided by the embodiment of the present application;

Fig. 6 is a schematic structural view of the winding device of the tail winding mechanism provided by the embodiment of the present application;

Fig. 7 is a schematic structural view of the pressing platform of the tail winding mechanism provided by the embodiment of the present application.

Reference signs:

10- Tension swing roller device;

100-tension pendulum roller;

101-tension cylinder;

102-rotating shaft;

103-swing roller fixed plate;

104-connection pin;

105-cylinder fixing plate;

106-joint bearing;

20-over roller device;

30-pressing device;

300-the first pressure roller;

301-the second pressure roller;

302-drive assembly;

303-support fixed plate;

304-swing rod;

40 - deviation correction device;

400-test body;

401-drive body;

50-winding device;

500-reduction gearbox;

501-rewinding shaft fixing plate;

502-rewinding shaft;

503-winding reel;

504-transmission motor;

60-rewinding induction light eye;

70-support roller;

80-rack;

90-pressure material platform;

901-pressure plate;

902-pressure material protection layer;

903-binder fixing plate;

904-pressure material cylinder;

905-platform fixing plate;

2 - Blank.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

detailed description

In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, the embodiment of the present application provides a tail winding mechanism of a winding machine, which includes: a tension swing roller device 10, a roller passing device 20, and a control device (not shown in the figure) , the winding device 50 and the frame 80, the tension swing roller device 10, the roller passing device 20, the control device and the winding device 50 can be installed on the frame 80.

The above-mentioned passing roller device 20 includes a passing roller and a pressure sensor, the passing roller is used to convey and support the material sheet 2, the pressure sensor can be installed on the outer peripheral surface of the passing roller, and can also be installed inside the passing roller, and the pressure sensor is used to detect The pressure of the material sheet 2 against the roller during the conveying process, so as to detect the tension of the material sheet 2 in the conveying process in real time, and the control device is electrically connected with the tension pendulum roller device 10 and the pressure sensor respectively, and the control device receives the detection from the pressure sensor. The pressure, and according to the pressure control tension pendulum roller device 10 to swing, to adjust the tightness of the material sheet 2.

Specifically, the control device receives the pressure detected by the pressure sensor and judges whether the pressure is less than the set pressure. If the pressure detected by the pressure sensor is less than the set pressure, it means that the tension of the material sheet 2 is insufficient during the conveying process. slack, which may lead to creasing or wrinkling of the material sheet 2 after winding. To avoid this situation, the control device controls the tension pendulum roller device 10 to swing in the direction close to the material sheet 2, so that the pressure sensor The pressure detected by the device is equal to the set pressure to ensure that the tension of the material sheet 2 is consistent during the transmission process without too much fluctuation, so as to avoid the phenomenon of crumpling and wrinkling of the material sheet 2 after winding, and reduce the It reduces the processing difficulty of subsequent coating, cold pressing or winding, and improves the stability of the voltage and current of the final product; if the pressure detected by the pressure sensor is greater than the set pressure, it means that the tension of the material sheet 2 during transmission Too large and too tight, which may cause the material sheet 2 to be broken. In order to avoid this situation, the control device controls the tension pendulum roller device 10 to swing away from the material sheet 2 to ensure that the material sheet 2 is transported In the case of consistent tension, the material sheet 2 is prevented from being broken, thereby improving the stability of the material sheet 2 in the process of conveying and winding.

As shown in Figures 1 to 4, the above-mentioned tension pendulum roller device 10 includes a tension pendulum roll 100 for contacting with the material sheet 2 and a tension cylinder 101 connected with the tension pendulum roll 100, and the tension cylinder 101 is used to drive the tension pendulum The roller 100 oscillates.

Further, the tension swing roller device 10 also includes a swing roller fixing plate 103 and a cylinder fixing plate 105, one side of the swing roller fixing plate 103 is rotatably connected to the frame 80 through a rotating shaft 102, and the other side of the swing roller fixing plate 103 is connected to the The tension pendulum roller 100 is rotationally connected through the connecting pin 104, one end of the cylinder fixing plate 105 is connected with the frame 80, the other end of the cylinder fixing plate 105 is rotationally connected with the tension cylinder 101 through the joint bearing 106, and the piston rod of the tension cylinder 101 is connected with the pendulum The roller fixing plate 103 is connected. Through the telescopic movement of the piston rod of the tension cylinder 101 , the pendulum roller fixing plate 103 is driven to swing, thereby driving the tension pendulum roller 100 to swing, so that the tension pendulum roller device 10 can adjust the tension of the material sheet 2 .

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the aforementioned machine tail winding mechanism also includes a compacting device 30 for compacting the sheet material, through which the compacting device 30 can not only flatten the material sheet 2 , so as to ensure the smoothness of the tablet 2, and also play a positioning role for the tablet 2 in the conveying process, that is, the tablet 2 can be properly pressed by the pressing force of the pressing device 30, so that the tablet 2 can be placed in the During the transmission process, the transmission is basically maintained at the same position, which ensures that the material sheet 2 will not deviate too much, thereby ensuring the transmission stability of the material sheet 2 .

Specifically, as shown in Figure 5, the above-mentioned pressing device 30 includes a first pressing roller 300, a second pressing roller 301 and a drive assembly 302, one of the first pressing roller 300 and the second pressing roller 301 is a steel roller , the other is a rubber roller, that is to say, the first pressing roller 300 is a rubber roller, and the second pressing roller 301 is a steel roller, or the first pressing roller 300 is a steel roller, and the second pressing roller 301 is a rubber roller, Avoid the situation that two rubber rollers or steel rollers are the same. Because the rubber rollers are easy to deform, when the two rubber rollers press the material 2, the pressing force may be insufficient, and the material 2 cannot be effectively positioned and Flattening, and due to the high structural strength of the steel rollers, the pressing force may be too large when the two steel rollers press the material sheet 2, causing serious wear and tear of the material sheet 2. Therefore, the first pressing roller 300 and the second pressing roller 300 One of the pressure rollers 301 is designed as a steel roller, and the other is designed as a rubber roller, which can reduce the wear of the material 2 while ensuring the pressing force to effectively position the material 2 . The driving assembly 302 is a telescopic cylinder, the driving assembly 302 is connected to at least one of the first pressing roller 300 and the second pressing roller 301, and the driving assembly 302 is used to drive the first pressing roller 300 and the second pressing roller 301 to move relatively, To compress the tablet 2.

Take the above-mentioned drive assembly 302 as an example of a telescopic cylinder for specific elaboration:

Above-mentioned pressing device 30 also comprises support fixed plate 303 and fork 304, and one end of this support fixed plate 303 is fixedly connected with frame 80, and the other end of support fixed frame is hinged with telescopic cylinder, and one end of fork 304 is connected with frame 80. Rotationally connected, the other end of the pendulum 304 is rotatably connected to the first pressure roller 300, the piston rod of the telescopic cylinder is connected to the pendulum roller, and the second pressure roller 301 is rotatably connected to the frame 80, and is carried out through the telescopic rod of the telescopic cylinder. The telescopic movement drives the pendulum 304 to swing, thereby driving the first pressing roller 300 to move toward the direction close to the second pressing roller 301 , so as to realize pressing and positioning of the material sheet 2 between the first pressing roller 300 and the second pressing roller 301 .

According to an embodiment of the present application, in the conveying direction of the material sheet 2, the pressing device 30, the tension pendulum roller device 10 and the winding device 50 are arranged in sequence, that is to say, the material sheet 2 first passes through the pressing device during the conveying process. The tightening device 30 performs flattening processing and positioning, and then passes through the tension pendulum roller device 10, which can avoid the situation that the web 2 deviates too much during the tension adjustment process of the tension pendulum roller device 10, thereby ensuring the stable transmission of the web 2 Finally, the material sheet 2 is wound up by the winding device 50 .

Further, in the conveying direction of the material sheet 2, the pressing device 30, the roller device 20, the tension pendulum roller device 10 and the winding device 50 are arranged in sequence, and the roller device 20 is arranged on the pressing device 30 and the tension pendulum Between the roller devices 10, that is to say, the material sheet 2 in the transmission process is first detected by the roller passing device 20, and then adjusted by the tension swing roller device 10, so that the tension of the material sheet 2 in the transmission process can be adjusted in time. detection, so that the control device can control the swing of the tension pendulum roller device 10 in time to realize tension adjustment, avoid the situation that the tension adjustment is not timely due to system delay, and improve the sensitivity of the tension pendulum roller device 10 adjustment.

It should be noted that the number of the passing roll device 20 can be multiple, at least one is arranged between the pressing device 30 and the tension swing roll device 10, and the others can be evenly distributed between the tension swing roll device 10 and the winding device 50 In this way, not only can the tension detection be carried out on different parts of the material sheet 2 to ensure the accuracy of the detection, but also the material sheet 2 can be turned by a plurality of roller passing devices 20 during the conveying process to ensure the tightness of the material sheet 2. It can also avoid the situation that the material sheet 2 is pulled off.

As shown in Figure 3, the above-mentioned machine tail winding mechanism also includes a deviation correction device 40, and the deviation correction device 40 includes a detection body 400 and a driving body 401 electrically connected to a uniform control device, the detection body 400 can be a deviation correction electric eye, and the driving body 401 can be a driving electric cylinder, wherein the detection body 400 is arranged between the tension swing device and the winding device 50, and is used to detect the offset of the material sheet 2 between the tension swing roller device 10 and the winding device 50, and the control device The offset detected by the detecting body 400 can be received, and the driving body 401 is controlled to drive the winding device 50 to move according to the offset, so as to avoid deviation of the web 2 during the conveying process.

Since the winding device 50 is in the process of winding the material 2, the thickness of the material 2 on the winding drum 503 is constantly increasing, and the angle of the force wrap is also continuously increasing, so that the tension of the material 2 will occur. Change, in order to solve this problem, as shown in Figure 1 and Figure 2, the tail winding mechanism in the embodiment of the present application also includes a thickness for detecting the winding thickness of the material sheet 2 on the winding drum 503 of the winding device 50 The winding sensing photoelectric eye 60 is electrically connected to the control device, and the control device can control the swing of the pendulum roller device according to the thickness of the material sheet 2 rewinding detected by the winding sensing photoelectric eye 60, so as to ensure the tension unanimous.

As shown in Figures 1 to 3, the above-mentioned tail winding mechanism also includes a support roller 70. In the conveying direction of the material sheet 2, the tension swing roller device 10, the support roller 70 and the winding device 50 are arranged in sequence. Preferably, The support roller 70 is arranged close to the winding device 50. Since the winding force at the winding device 50 is constantly changing, the tension is unstable. The support roller 70 can effectively support the material sheet 2 to ensure the stability of the material sheet 2. degree of tightness, to avoid the situation that the material sheet 2 is pulled off.

Further, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 7, the above-mentioned machine tail winding mechanism also includes a pressing platform 90, which is arranged between the tension pendulum roller and the winding device 50, and can The material sheet 2 is compressed and fixed, then the material sheet 2 is cut, and the material sheet 2 after being wound on the winding device 50 is taken off. The binder platform 90 includes a binder plate 901, a binder cylinder 904 and a platform fixing plate 905, the platform fixing plate 905 is set opposite to the binder plate 901, the binder cylinder 904 is connected with the binder plate 901, and the binder cylinder 904 The pressing plate 901 can be driven to move in the direction of the platform fixing plate 905 so as to press and fix the material sheet 2 . Specifically, when the thickness of the material sheet 2 rewound by the winding device 50 reaches a specified value, the pressing cylinder 904 drives the pressing plate 901 to move in the direction of the platform fixing plate 905 to press and fix the material sheet 2, and then press against The material sheet 2 between the material platform 90 and the winding device 50 is cut, and the material sheet 2 that has reached the specified value after winding is removed, and then the pressing cylinder 904 drives the pressing plate 901 to a direction away from the platform fixing plate 905 Movement, to continue the winding work.

Preferably, the binder platform 90 further includes a binder protection layer 902 and a binder fixing plate 903, and the binder protection layer 902 is arranged on a plane opposite to the binder plate 901 and the platform fixing plate 905, for aligning the material Sheet 2 is protected, and one side of binder fixing plate 903 is connected with platform fixing plate 905, and the other side is connected with frame 80, realizes the fixing of platform fixing plate 905.

According to one embodiment of the present application, the winding device 50 specifically includes a reduction box 500, a transmission motor 504 and a winding shaft 502 connected in sequence. The reduction box 500 converts a high speed into a low speed, and then drives the drive motor to rotate at a low speed. Thereby driving the rewinding shaft to rotate at a low speed to realize the rewinding function.

Specifically, the winding device 50 also includes a winding cylinder 503 and a winding shaft fixing plate 501, one side of the winding shaft fixing plate 501 is fixedly connected with the frame 80, and the other side is rotatably connected with the winding shaft 502, and the winding The cylinder 503 is sleeved on the outside of the winding shaft 502, and rotates with the rotation of the winding shaft 502, and the outer peripheral surface of the winding cylinder 503 can wind up the sheet material.

The above is only a preferred embodiment of the application, and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes, based on any amendments, equivalent replacements, Improvements, etc., should all be included within the protection scope of the present application.

Claims (10)

1. the tail rolling-up mechanism of a kind of up- coiler, it is characterised in that include：Tension force puts roller arrangement, crosses roller arrangement and control dress Put,

The roller arrangement of crossing included roller and installed in the pressure sensor crossed on roller, and the pressure sensor is used to detect Pressure of the tablet to the roller excessively,

The control device puts roller arrangement with the tension force respectively and the pressure sensor is electrically connected, and the control device is used for According to the pressure of pressure sensor detection, control the tension force pendulum roller arrangement and swing.

2. tail rolling-up mechanism according to claim 1, it is characterised in that also include that the compression for compressing tablet is filled Put, on the direction of transfer of tablet, be disposed with the hold down gag and tension force pendulum roller arrangement.

3. tail rolling-up mechanism according to claim 2, it is characterised in that

On the direction of transfer of tablet, the hold down gag, the roller arrangement excessively and tension force pendulum roller arrangement are disposed with.

4. tail rolling-up mechanism according to claim 2, it is characterised in that the hold down gag include the first pressure roller, the Two pressure rollers and drive component, the drive component is connected with least one of first pressure roller and second pressure roller, institute Drive component is stated for driving first pressure roller and the second pressure roller relative motion, to compress tablet.

5. tail rolling-up mechanism according to claim 4, it is characterised in that

One of first pressure roller and second pressure roller are steel rider, and another one is rubber roll.

6. tail rolling-up mechanism according to any one of claim 1 to 5, it is characterised in that also including deviation correcting device and Wrap-up, the deviation correcting device includes detection body and the driving body for electrically connecting with the control device,

The detection body is arranged between the strain oscillatory device and the wrap-up, and the detection body is used to detect described Tension force puts the side-play amount of tablet between roller arrangement and the wrap-up,

The driving body is connected with the wrap-up, and the driving body is used to drive the wrap-up to move,

The control device is additionally operable to the side-play amount surveyed according to the detection health check-up, controls the driving body and drives the winding dress Put movement.

7. tail rolling-up mechanism according to any one of claim 1 to 5, it is characterised in that also including wrap-up and For the winding sensing light eye electrically connected with the control device, winding sensing light is ophthalmically acceptable in detecting the wrap-up Tablet winding thickness on reel, the control device is additionally operable to put roller arrangement according to the tablet winds THICKNESS CONTROL Swing.

8. tail rolling-up mechanism according to any one of claim 1 to 5, it is characterised in that also including wrap-up and For supporting the support roller of tablet, on the direction of transfer of tablet, the tension force pendulum roller arrangement, the support roller are disposed with And the wrap-up.

9. tail rolling-up mechanism according to any one of claim 1 to 5, it is characterised in that

The tension force pendulum roller arrangement includes that tension force puts roller and tension cylinder, and the tension cylinder is connected with tension force pendulum roller, with The tension force pendulum roller is driven to swing.

10. tail rolling-up mechanism according to claim 9, it is characterised in that

The tail rolling-up mechanism also includes frame,

The tension force pendulum roller arrangement also includes pendulum roller fixed plate and air cylinder fixed plate,

The side of the pendulum roller fixed plate is connected with the gantry rotation, and opposite side is rotated with pendulum roller and is connected,

One end of the air cylinder fixed plate is connected with the frame, and the other end is rotated with the tension cylinder and is connected.