WO2024041168A1

WO2024041168A1 - Floating roller position detection apparatus, floating roller position adjustment device, and rolling system

Info

Publication number: WO2024041168A1
Application number: PCT/CN2023/102868
Authority: WO
Inventors: 蔡浩
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-08-22
Filing date: 2023-06-27
Publication date: 2024-02-29
Also published as: CN218289814U

Abstract

A floating roller position detection apparatus, comprising a rotating roller (10), a detection block (20), and a sensor (30). The rotating roller (10) is connected to a floating roller (100), so that the floating roller (100) can swing around the rotating axis of the rotating roller (10); the sensor (30) is used for measuring a detection distance (L1) between the sensor (30) and the detection block (20); one of the detection block (20) and the sensor (30) is fixedly arranged relative to the rotating roller (10), the other one of the detection block (20) and the sensor (30) is arranged at the position on the rotating roller (10) deviating from the rotating axis thereof, the detection distance (L1) changes along with the rotation of the rotating roller (10), and the rotating angle (α) of the rotating roller (10) and the detection distance (L1) have a mapping relationship. The floating roller position detection apparatus has an accurate detection result, and is beneficial to stabilizing the tension of a battery electrode sheet. The present invention also relates to a floating roller position adjustment device and a rolling system.

Description

Dancer position detection device, dancer position adjustment equipment and roller pressing system

cross reference

This application cites Chinese patent application No. 202222212077.8 titled "Dancer Position Detection Device, Dancer Position Adjustment Equipment and Roller Pressure System" submitted on August 22, 2022, which is fully incorporated into this application by reference.

Technical field

This application relates to the technical field of battery pole piece production, and in particular to a dancer roller position detection device, dancer roller position adjustment equipment and a roller pressing system.

Background technique

Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor related to their development.

The production of battery pole pieces is carried out through a rolling system. During the winding process of battery pole pieces, in order to adjust the tension of the battery pole pieces during the feeding process, a floating roller is usually installed in the rolling system. The battery pole pieces Will wrap around part of the side of the dancer roller. When the tension of the battery pole pieces is too small, the floating roller will swing toward the side away from the battery pole pieces, thereby increasing the tension of the battery pole pieces; when the tension of the battery pole pieces is too large, the floating roller will swing like a side close to the battery pole pieces. Swing on one side to reduce the tension on the battery poles. The tension of the battery pole pieces is related to the position of the floating roller. To ensure that the tension of the battery pole pieces is constant, the position of the floating roller needs to be detected.

In some cases, the detection of the position of the dancer roller is not accurate enough, making the tension adjustment of the battery pole pieces inaccurate.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of this application is to provide a dancer roller position detection device, a dancer roller position adjustment device and a roller pressing system to solve the problems in related technologies.

The embodiment of the first aspect of the present application provides a dancer roller position detection device. The dancer roller position detection device includes: a rotating roller, which is connected to the floating roller so that the floating roller can swing around the rotation axis of the rotating roller; a detection block; and a sensor. , the sensor is used to detect the detection distance L1 between the sensor and the detection block, and the detection distance L1 is used to characterize the distance between the detection block and the transmission block. The relative position of the sensor; wherein, one of the detection block and the sensor is fixedly arranged relative to the rotating roller, and the other of the detecting block and the sensor is arranged at a position of the rotating roller that deviates from the rotation axis of the rotating roller, and the detection distance L1 changes with the rotating roller. The rotation of the roller changes, and there is a mapping relationship between the rotation angle α of the rotating roller and the detection distance L1.

In the technical solution of the embodiment of the present application, when the floating roller position detection device is used in the rolling system, the rotating roller is connected to the floating roller. When the floating roller swings, the rotating roller will be driven to rotate, and the detection block will also rotate, causing the detection sensor to rotate. The detection distance L1 between the detection block and the detection block changes. The rotation angle α of the rotating roller can be determined through the detection distance L1, and then the swing angle of the dancer roller can be determined through the rotation angle α of the rotation roller. Since the initial position of the dancer roller is already As we know, the position of the dancer roller can be determined by the swing angle of the dancer roller. Since there is a mapping relationship between the rotation angle α of the rotating roller and the detection distance L1, and the swing angle of the dancer roller is equal to the rotation angle α of the rotating roller, then as long as the detection distance L1 is accurately determined, the position of the dancer roller can be determined, and the detection result will be more accurate.

In some embodiments, the floating roller position detection device further includes: a connecting disc, rigidly connected to the rotating roller, wherein the rotating axis of the connecting disc is parallel to the rotating axis of the rotating roller, and the detection block and sensor are arranged in an offset position from the rotating roller. The other position of the rotation axis is fixedly connected to the end face of the connecting disk. The circle where the end face of the connecting disk is located can be set larger, and the detection block is set on the connecting disk. Compared with directly setting the detection block on the rotating roller, the circle where the detection block is rotated will be larger. When the rotation angle α of the rotating roller is constant, the rotation distance of the detection block is larger, that is, the change in the detection distance L1 is larger, and it is easier to detect, further improving the accuracy of detection.

In some embodiments, the connecting disc is coaxially fixedly connected to the rotating roller; the detection block is connected to the end surface of the connecting disc on the side away from the rotating roller. The connecting disc and the rotating roller are coaxially fixedly connected. This structure is simpler, and the detection block is movable to avoid the sensor from colliding with other devices during repeated movement, causing damage to the sensor.

In some embodiments, the sensor is a fiber optic sensor. The high sensitivity of the optical fiber sensor can improve the accuracy of the entire dancer roller position detection device. The optical fiber sensor is not easily damaged and reduces the operation and maintenance costs of the device.

In some embodiments, the rotation angle α is greater than or equal to 0 degrees and less than or equal to 30 degrees. The tension of the battery pole pieces will not change greatly, so the rotation angle of the floating roller in the rolling system is generally small, and the rotation angle α is limited to avoid excessive swing of the floating roller from affecting the feeding of the battery pole pieces.

The embodiment of the second aspect of the present application provides a dancer roller position adjustment device. The dancer roller position adjustment device includes: the dancer roller position detection device in the above embodiment; an adjustment device electrically connected to the sensor, and the adjustment device is configured to detect the position of the dancer roller according to the detection device. The distance L1 adjusts the floating roller swing. According to the detection distance L1 detected by the dancer roller position detection device, the actual position of the dancer roller is determined. The adjustment device adjusts the swing of the dancer roller according to the actual position of the dancer roller and the set position, so that the dancer roller swings to the set position.

In some embodiments, the adjustment device includes: an adjustment rod, one end of which is fixedly connected to the central axis of the rotating roller; a driver, which is fixedly connected to the other end of the adjustment rod, the driver is electrically connected to the sensor, and the driver is configured to drive the adjustment according to the detection distance L The rod turns. The driver drives the adjusting rod to rotate, so that the rotating roller rotates, which adjusts the swing of the floating roller. It is an indirect adjustment of the swing of the floating roller, without direct contact with the floating roller, so as to avoid affecting the normal operation of the floating roller.

In some embodiments, the driver is a cylinder, the fixed end of the cylinder is fixedly arranged, and the telescopic end of the cylinder is fixedly connected to the other end of the adjusting rod. The cylinder is a common driving device with a simple and compact structure, easy to use and easy to install, and is applicable to many scenarios.

In some embodiments, the cylinder barrel of the cylinder is a fixed end, and the piston rod of the cylinder is a telescopic end. The volume of the cylinder barrel is larger than that of the piston rod, and the weight of the cylinder barrel is heavier than the weight of the piston rod. Setting the larger and heavier cylinder barrel as a fixed end can improve the efficiency of the cylinder. stability.

In some embodiments, the extending direction of the adjusting rod intersects the extending direction of the rotating roller, that is, the adjusting rod is arranged on the side of the rotating roller, so that the structure of the dancer roller position adjusting device is more compact.

In some embodiments, the dancer roller position adjustment device further includes: a memory for storing mapping relationships. The memory is set up to store the mapping relationship. After the detection distance L1 is determined, the rotation angle α can be easily determined, thereby determining the position of the dancer roller.

In some embodiments, the dancer roller position adjustment device further includes: a limiting device located on one side of the adjusting rod, and the limiting device is configured to limit the rotation range of the adjusting rod. Avoid excessive rotation of the adjusting rod, which will cause the floating roller to swing too much and affect the tension adjustment of the battery pole pieces.

The third embodiment of the present application provides a rolling system. The rolling system includes the dancer roller position adjustment device and the dancer roller in the above embodiment, and the dancer roller is connected to the rotating roller. The roller pressure system can accurately detect the position of the dancer roller and adjust the position of the dancer roller at the same time.

In some embodiments, the roller pressing system further includes: a swing rod, one end of which is pivotally connected to the floating roller, and the other end of which is fixedly connected to the side of the rotating roller. One end of the swing rod is pivotally connected to the floating roller, so that the floating roller can rotate. However, when the floating roller swings, the swing rod can be driven to swing, and the swing rod drives the rotating roller to rotate.

In some embodiments, the rolling system further includes: a support, the support has a mounting hole, the rotating roller passes through the mounting hole, and the rotating roller can rotate in the mounting hole. The supports provide solid support for the entire rolling system.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

Description of drawings

In the drawings, unless otherwise specified, the same reference numbers refer to the same or similar parts or elements throughout the several figures. The drawings are not necessarily to scale. It should be understood that these drawings depict only some embodiments disclosed in accordance with the present application and should not be considered as limiting the scope of the present application.

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on the drawings without exerting creative efforts.

Figure 1 is a simple schematic diagram of the winding mechanism in the related art;

Figure 2 is a front view of a rolling system according to some embodiments of the present application;

Figure 3 is a left view of the rolling system when the dancer roller is not swinging in some embodiments of the present application;

Figure 4 is a left view of the rolling system after the dancer roller swings according to some embodiments of the present application.

Explanation of reference symbols:
100. Floating roller; 200. Battery pole piece; 300. First feeding roller; 400. Second feeding roller; 10. Rotating roller;
20. Detection block; 30. Sensor; 40. Connection disk; 50. Connecting rod; 60. Adjustment rod; 70. Driver; 701. Fixed end; 702. Telescopic end; 80. Limiting device; 90. Swing rod; 110. Support; 111. Installation hole.

Detailed ways

The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and are therefore only used as examples and cannot be used to limit the protection scope of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field belonging to this application; the terms used herein are for the purpose of describing specific embodiments only and are not intended to be used in Limitation of this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

In the description of the embodiments of this application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. A specific order or priority relationship. In the description of the embodiments of this application, "plurality" means two or more, unless otherwise explicitly and specifically limited.

Reference herein to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of this application, the term "and/or" is only an association relationship describing associated objects, indicating that there can be three relationships, such as A and/or B, which can mean: A exists alone, and A exists simultaneously and B, there are three cases of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

In the description of the embodiments of this application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to It is more than two pieces (including two pieces).

In the description of the embodiments of this application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back" , "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", " The orientations or positional relationships indicated by "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply the devices or devices referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation, and therefore are not to be construed as limitations on the embodiments of the present application.

In the description of the embodiments of this application, unless otherwise explicitly stated and limited, technical terms such as "installation", "connection", "connection", and "fixing" should be understood in a broad sense. For example, it can be a fixed connection, or a fixed connection. It can be detachably connected or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary; it can be the internal connection of two elements or the interaction of two elements. relation. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

At present, during the feeding process of battery pole pieces, the tension of the battery pole pieces is generally adjusted by floating rollers. Figure 1 is a simple schematic diagram of a winding mechanism in the related art. Referring to FIG. 1 , the battery pole pieces 200 are sequentially surrounded on the side surfaces of the first feeding roller 300 , the floating roller 100 and the second feeding roller 400 . During the feeding process, if the tension of the battery pole piece 200 is too small, the adjusting floating roller 100 swings toward the outside of the battery pole piece 200 , that is, swings along the first direction A in FIG. 1 , thereby increasing the size of the battery pole piece 200 . If the tension of the battery pole piece 200 is too high, the adjusting floating roller 100 swings toward the inside of the battery pole piece 200 , that is, swings along the second direction B in FIG. 1 , thereby reducing the tension of the battery pole piece 200 .

The applicant noticed that the position of the floating roller 100 is related to the tension of the battery pole piece 200. In order to stabilize the tension of the battery pole piece 200, it is necessary to detect the position of the floating roller 100. However, in the related art, a rotary potentiometer or a linear potentiometer is generally used to detect the position of the dancer roller 100 . However, the detection results of these two potentiometers are not accurate enough and affect the adjustment of the tension of the dancer roller 100 .

Based on the above considerations, embodiments of the present application provide a dancer roller position detection device. The dancer roller position detection device includes a rotating roller, a detection block and a sensor. The rotating roller is connected to the dancer roller so that the dancer roller can swing around the rotation axis of the rotating roller. The sensor is used to detect the detection distance L1 between the sensor and the detection block, and the detection distance L1 is used to characterize the relative position of the detection block and the sensor. Among them, one of the detection block and the sensor (assumed sensor) is fixedly arranged, and the other one of the detection block and the sensor (assumed detection block) is arranged at a position of the rotating roller that deviates from the rotation axis of the rotating roller. When the rotating roller rotates, the detection distance L1 changes, and there is a mapping relationship between the rotation angle α of the rotating roller and the detection distance L1. When using the floating roller position detection device, connect the rotating roller to the floating roller, so that when the floating roller swings, the rotating roller can be driven to rotate. The rotating roller rotates to drive the detection block to rotate, causing the detection distance L1 to change. Due to the rotation of the rotating roller There is a mapping relationship between the angle α and the detection distance L1, so the rotation angle α of the rotating roller can be calculated. Since the rotation angle α of the rotating roller is equal to the swing angle of the dancer roller, the swing angle of the dancer roller can be determined. Since there is a mapping relationship between the rotation angle α of the rotating roller and the detection distance L1, and the rotation angle α of the rotating roller is equal to the swing angle of the dancer roller, then there is a mapping relationship between the swing angle of the dancer roller and the detection distance L1. As long as the detection distance is accurately determined L1 can determine the position of the dancer roller, and the detection result is accurate and will not affect the adjustment of the dancer roller tension.

The floating roller position detection device disclosed in the embodiment of the present application can be applied to the roller pressing system, which is helpful to accurately determine the position of the floating roller, stabilize the tension of the battery pole piece, and ensure the smooth progress of the battery pole piece feeding process.

The embodiment of the present application provides a dancer roller position detection device, which can be used in a roller pressing system. Figure 2 is a front view of a rolling system according to some embodiments of the present application. Referring to FIG. 2 , the dancer roller position detection device includes a rotating roller 10 , which is connected to the dancer roller 100 so that the dancer roller 100 can swing around the rotation axis of the rotating roller 10 . Figure 3 is a left view of the rolling system when the dancer roller is not swinging in some embodiments of the present application, and Figure 4 is a left view of the rolling system after the dancer roller is swinging in some embodiments of the present application. Referring to Figures 3 and 4, the dancer position detection device also includes a detection block 20 and a sensor 30. The sensor 30 is used to detect the detection distance L1 between the sensor 30 and the detection block 20. The detection distance L1 is used to characterize the detection block 20 and the sensor. 30 relative position. Among them, one of the detection block 20 and the sensor 30 is fixedly arranged relative to the rotating roller 10, and the other of the detecting block 20 and the sensor 30 is arranged at a position of the rotating roller 10 that deviates from the rotation axis of the rotating roller 10. The detection distance L1 changes with the rotation. The rotation of the roller 10 changes, and there is a mapping relationship between the rotation angle α of the rotating roller 10 and the detection distance L1.

In Figures 2 to 4, the sensor 30 is fixed and the detection block 20 is arranged on the rotating roller 10 at a position deviating from the rotation axis of the rotating roller 10. In this way, the sensor 30 is fixed and the detection block 20 is movable to avoid The sensor 30 collides with other devices during repeated movement, causing the sensor 30 to be damaged. In other implementations, the detection block 20 may be fixedly arranged, and the sensor 30 may be arranged at a position deviating from the rotation direction of the rotating roller 10 . The position of the moving axis. For the convenience of explanation, the following explanations of this application are based on the example that the sensor 30 is fixedly arranged and the detection block 20 is arranged at a position of the rotating roller 10 deviating from the rotation axis of the rotating roller 10 .

The rotating roller 10 is connected to the floating roller 100, and the swing axis of the floating roller 100 is the rotation axis of the rotating roller 10. Therefore, when the floating roller 100 swings, it will drive the rotating roller to rotate. At this time, the swing angle of the floating roller 100 is consistent with the rotation of the rotating roller 10. Angle α is equal.

In the embodiment of the present application, the detection block 20 is disposed at a position of the rotating roller 10 deviating from the rotation axis of the rotating roller 10 , so that when the rotating roller 10 rotates, the detection block 20 will also rotate, and the rotation axis of the detection block 20 is rotated. The axis of rotation of roller 10. Therefore, when the rotating roller 10 rotates, the detection distance L1 will change.

In the embodiment of the present application, the shape of the detection block 20 is not limited, and the detection block 20 can be in the shape of a cube, a triangular prism, etc.

In the embodiment of the present application, the material of the detection block 20 is not limited. For example, the material of the detection block 20 may be metal or non-metal.

In the embodiment of the present application, the detection distance L1 is the distance between the sensor 30 and the detection block 20 along the extension direction C of the detection part of the sensor 30 . In some cases, the detection distance L1 is the minimum distance between the sensor 30 and the detection block 20; in other cases, the detection distance L1 is not the minimum distance between the sensor 30 and the detection block 20. The specific situation is the same as the detection block 20. It is related to the positional relationship of the sensor 30.

In an implementation manner of the embodiment of the present application, there is a one-to-one mapping relationship between the rotation angle α of the rotating roller 10 and the detection distance L1.

In the embodiment of the present application, when the dancer roller position detection device is used in the rolling system, the rotating roller 10 is connected to the dancer roller 100. When the dancer roller 100 swings, it will drive the rotating roller 10 to rotate, and the detection block 20 will also rotate. The detection distance L1 between the detection sensor 30 and the detection block 20 changes. The detection distance L1 can determine the rotation angle α of the rotating roller 10, and then the rotation angle α of the rotating roller 10 can determine the swing angle of the floating roller 100. Since the initial position of the dancer roller 100 is known, the position of the dancer roller 100 can be determined by the swing angle of the dancer roller 100 . Since there is a mapping relationship between the rotation angle α of the rotating roller 10 and the detection distance L1, and the swing angle of the dancer roller 100 is equal to the rotation angle α of the rotating roller 10, then the position of the dancer roller 100 can be determined as long as the detection distance L1 is accurately determined. The results are more accurate.

With reference to FIGS. 2 to 4 , the dancer position detection device also includes a connecting disc 40 . The connecting disc 40 is rigidly connected to the rotating roller 10. The rotating axis of the connecting disc 40 is parallel to the rotating axis of the rotating roller 10. The other of the detecting block 20 and the sensor 30 is arranged at a position deviating from the rotating axis of the rotating roller 10 and is connected to the connecting disc 40. The end faces of the disc 40 are fixedly connected.

In the embodiment of the present application, the rotation axis of the connecting disc 40 is parallel to the rotation axis of the rotating roller 10, and the connecting disc 40 is rigidly connected to the rotating roller 10, so when the rotating roller 10 rotates, it can drive the connecting disc 40 to rotate, and The rotation angle of the rotating roller 10 is equal to the rotation angle of the connecting disk 40 .

In some embodiments, the detection block 20 is fixedly connected to the end surface of the connecting disc 40 , and the detection block 20 is located at a position of the connecting disc 40 deviating from the rotation axis of the connecting disc 40 . The rotating roller 10 can pass through the connecting disc 40 The detection block 20 is driven to rotate.

As shown in FIGS. 3 and 4 , the end surface area of the connecting disc 40 is larger than the end surface area of the rotating roller 10 , that is, the circle where the end surface of the connecting disc 40 is located is larger than the circle where the end surface of the rotating roller 10 is located.

In the embodiment of the present application, a connecting disc 40 is provided to install the detection block 20. The circle where the end surface of the connecting disc 40 is located can be set larger, and the detection block 20 is arranged on the connecting disc 40. In comparison, The detection block 20 is directly placed on the rotating roller 10. When the detection block 20 rotates, the circle is larger. When the rotation angle α of the rotating roller 10 is constant, the rotation distance of the detection block 20 is larger, that is, the detection distance L1 is The changes are larger and easier to detect, further improving the accuracy of detection.

In some embodiments, the detection block 20 can be disposed near the side of the connecting disk 40, which can cause the detection distance L1 to change larger when the dancer roller 100 swings, further improving the accuracy of detection.

Referring to FIG. 2 , the connecting disc 40 is coaxially fixedly connected to the rotating roller 10 , and the detection block 20 is connected to the end surface of the connecting disc 40 on the side away from the rotating roller 10 .

The connecting disc 40 is coaxially fixedly connected to the rotating roller 10. This structure is simpler. The detecting block 20 is connected to the end surface of the connecting disc 40 on the side away from the rotating roller 10. That is, the detecting block 20 is movable and avoids The sensor 30 collides with other devices during repeated movement, causing the sensor 30 to be damaged.

Referring to Figure 2, the dancer roller position detection device also includes a connecting rod 50, which is coaxially and fixedly connected to the rotating roller 10, and the connecting disc 40 is coaxially and fixedly connected to the connecting rod 50. The extending direction of the connecting rod 50 is consistent with the extending direction of the rotating roller 10 , and the connecting rod 50 and the rotating roller 10 rotate synchronously.

In the embodiment of the present application, the connecting rod 50 is provided to connect the rotating roller 10 and the connecting disk 40. The length of the connecting rod 50 can be set according to the requirements, thereby setting the position of the connecting disk 40, which is more convenient.

According to some embodiments of the present application, sensor 30 is a fiber optic sensor.

An optical fiber sensor is a sensor that converts the state of the measured object into a measurable light signal.

The high sensitivity of the optical fiber sensor can improve the accuracy of the entire dancer roller position detection device. The optical fiber sensor is not easily damaged and reduces the operation and maintenance costs of the device.

At the same time, the light sensor has good electrical insulation performance, strong anti-electromagnetic interference ability, strong adaptability, and can easily realize long-distance monitoring of the measured signal.

According to some embodiments of the present application, the rotation angle α is greater than or equal to 0 degrees and less than or equal to 30 degrees.

Taking the rolling system after the floating roller swings as shown in Figure 4 as an example, this application will introduce how to calculate the rotation angle α based on the detection distance L1. When the dancer roller 100 is in the initial position, referring to FIG. 3 and FIG. 4 , the detection distance L1 between the detection block 20 and the sensor 30 is constant, which is recorded as L1 ₀ . And at this time, the distance L2 between the detection point C of the sensor 30 on the detection block 20 and the rotation center of the detection block 20 is also known and determined. When the floating roller 100 swings and causes the detection block 20 to rotate, as shown in Figure 4, the detection block 20 moves away from the sensor 30. At this time, the detection distance L1 between the detection block 20 and the sensor 30 increases, which is recorded as L1 ₁ , at this time L1 ₁ is greater than L1 ₀ , so it can be detected that the rotation angle of the dancer roller 100 is arctan(L1 ₁ -L1 ₀ )/L2, that is, α=arctan(L1 ₁ -L1 ₀ )/L2. Since the initial position of the dancer roller 100 is known, the position of the dancer roller 100 can be determined by knowing the rotation angle α.

In Figure 4, the detection block 20 moves away from the sensor 30. At this time, the detection distance L1 between the detection block 20 and the sensor 30 increases, so that L1 ₁ - L1 ₀ > 0, then α is greater than 0°; of course There is also a case where the detection block 20 moves closer to the sensor 30. At this time, the detection distance L1 between the detection block 20 and the sensor 30 decreases. At this time, L1 ₁ - L1 ₀ <0, then α is less than 0°. When the detection block 20 does not move, α equals 0°, indicating that the rotating roller 10 does not rotate, that is, the floating roller 100 does not swing.

As shown in FIG. 1 , the dancer roller 100 may swing in a clockwise direction or a counterclockwise direction. With reference to Figures 1 to 4, when the floating roller 100 swings clockwise, it drives the rotating roller 10 to rotate clockwise. The rotating roller 10 rotates clockwise to drive the detection block 20 to rotate clockwise, so that the detection block 20 moves closer to the sensor 30. At this time, the detection distance L1 between the detection block 20 and the sensor 30 decreases, and α is less than 0°; when the floating roller 100 swings counterclockwise, it drives the rotating roller 10 to rotate counterclockwise, and the rotating roller 10 rotates counterclockwise. This drives the detection block 20 to rotate counterclockwise, causing the detection block 20 to move away from the sensor 30. At this time, the detection distance L1 between the detection block 20 and the sensor 30 increases, and α is greater than 0°, that is, α can be passed The relationship with 0 determines the swing direction of the pendulum roller.

In the embodiment of the present application, the tension of the battery pole pieces does not change greatly, so the rotation angle of the floating roller 100 in the rolling system is generally small, and the rotation angle α is limited to prevent the floating roller 100 from swinging too much and affecting the battery pole pieces. of feed.

Some embodiments of the present application provide a dancer roller position adjustment device. The dancer roller position adjustment device includes the dancer roller position detection device and the adjustment device in the above embodiments. The adjustment device is electrically connected to the sensor 30, and the adjustment device is configured according to The detection distance L1 adjusts the swing of the dancer roller 100.

In the embodiment of the present application, the adjusting device can directly adjust the swing of the dancer roller 100 or indirectly adjust the swing of the dancer roller 100 .

In the embodiment of the present application, the actual position of the dancer roller 100 is determined based on the detection distance L1 detected by the dancer roller position detection device, and the adjustment device adjusts the swing of the dancer roller 100 according to the actual position and the set position of the dancer roller 100, so that the dancer roller 100 Swing to set position.

In the embodiment of the present application, after the dancer roller 100 swings to the set position, the dancer roller position detection device can also detect the position of the dancer roller 100 to determine whether the dancer roller 100 swings to the set position.

Referring to Figures 3 and 4, the adjustment device includes an adjustment rod 60 and a driver 70. One end of the adjustment rod 60 is fixedly connected to the central axis of the rotating roller 10. The other end of the adjustment rod 60 is fixedly connected to the driver 70. The driver 70 is electrically connected to the sensor 30. Connected, the driver 70 is configured to drive the adjustment rod 60 to rotate according to the detection distance L1.

In the embodiment of the present application, one end of the adjusting rod 60 is fixedly connected to the central axis of the rotating roller 10, so when the driver 70 drives the adjusting rod 60 to rotate, it can drive the rotating roller 10 to rotate, thereby causing the floating roller 100 to swing.

In some embodiments, one end of the adjusting rod 60 can be fixedly connected to the connecting rod 50 and connected to the rotating roller through the connecting rod 50 .

In the embodiment of the present application, the driver 70 is used to drive the adjusting rod 60 to rotate, thereby causing the rotating roller 10 to rotate, thereby adjusting the swing of the dancer roller 100. This is an indirect adjustment of the swing of the dancer roller 100, and does not require direct contact with the dancer roller 100 to avoid Affect the normal operation of the dancer roller 100.

According to some embodiments of the present application, the driver 70 is a cylinder, the fixed end 701 of the cylinder is fixedly provided, and the telescopic end 702 of the cylinder is fixedly connected to the other end of the adjusting rod 60 .

The cylinder is a common driving device with a simple and compact structure, easy to use and easy to install, and is applicable to many scenarios.

In some embodiments, the cylinder may be a low friction cylinder.

According to some embodiments of the present application, the cylinder barrel of the cylinder is the fixed end 701 , and the piston rod of the cylinder is the telescopic end 702 .

The volume of the cylinder barrel is larger than that of the piston rod, and the weight of the cylinder barrel is heavier than the weight of the piston rod. Setting the larger and heavier cylinder barrel as a fixed end can improve the efficiency of the cylinder. stability.

According to some embodiments of the present application, the extension direction of the adjustment rod 60 intersects the extension direction of the rotating roller 10 .

In some embodiments, the extension direction of the adjustment rod 60 is perpendicular to the extension direction of the rotating roller 10 .

The extending direction of the adjusting rod 60 intersects the extending direction of the rotating roller 10, that is, the adjusting rod 60 is arranged on the side of the rotating roller 10, so that the structure of the dancer roller position adjusting device is more compact.

In this embodiment of the present application, the dancer roller position adjustment device further includes a memory, and the memory is used to store the mapping relationship.

In the embodiment of the present application, after the sensor 30 detects the detection distance L1, it transmits it to the processor, and the processor then transmits the signal to the memory. The memory stores the mapping relationship. The rotation angle α can be determined through the detection distance L1 and the mapping relationship. Thus, the position of the dancer roller 100 is determined, and then the swing of the dancer roller 100 is adjusted through the adjustment device, so that the dancer roller 100 reaches the designated position.

In the embodiment of the present application, a memory is set up to store the mapping relationship. After the detection distance L1 is determined, the rotation angle α can be easily determined, thereby determining the position of the dancer roller 100 .

Referring to FIGS. 2 to 4 , the dancer position adjustment device further includes a limiting device 80 located on one side of the adjusting rod 60 , and the limiting device 80 is configured to limit the rotation range of the adjusting rod 60 .

As shown in Figures 2 and 4, the limiting device 80 is located on the side of the adjusting rod 60. When the adjusting rod 60 rotates to the limiting device 80, the limiting device 80 blocks the rotation of the adjusting rod 60, thereby limiting the adjusting rod. 60° turning range.

In the embodiment of the present application, a limiting device 80 is provided to limit the rotation range of the adjusting rod 60 to prevent the adjusting rod 60 from rotating too much, causing the floating roller 100 to swing too much and affecting the tension adjustment of the battery pole pieces.

In the embodiment of the present application, the limiting device 80 may be a resisting rod or a low baffle.

Some embodiments of the present application provide a rolling system. The rolling system includes the dancer roller position adjustment device and the dancer roller 100 in the above embodiment. The dancer roller 100 is connected to the rotating roller 10 .

The roller pressing system provided by the embodiment of the present application can accurately detect the position of the dancer roller 100 and adjust the position of the dancer roller 100 at the same time.

In some embodiments, the rolling system also includes a programmable logic controller (Programmable Logic Controller, PLC). The position of the dancer roller 100 can be adjusted by the roller system.

Referring to FIG. 2 , the rolling system also includes a swing bar 90 , one end of the swing bar 90 is pivotally connected to the floating roller 100 , and the other end of the swing bar 90 is fixedly connected to the side of the rotating roller 10 .

As shown in Figure 2, the rolling system includes two swing bars 90 to ensure the stability of the connection.

One end of the swing rod 90 is pivotally connected to the floating roller 100 so that the floating roller 100 can rotate. However, when the floating roller 100 swings, the swing rod 90 can be driven to swing, and the swing rod 90 drives the rotating roller 10 to rotate.

Referring to Figure 2, the rolling system also includes a support 110. The support 110 has a mounting hole 111, the rotating roller 10 passes through the mounting hole 111, and the rotating roller 10 can rotate in the mounting hole 111.

As shown in Figure 2, the rolling system includes two supports 110 to ensure the stability of the rolling system. At the same time, the rotating roller 10 can be fixed from both ends of the rotating roller 10 to ensure the stability of the rotating roller 10 .

The support 110 provides stable support for the entire rolling system.

In some embodiments, the sensor 30 , the limiting device 80 and the cylinder are all fixedly arranged on the support 110 .

The feeding speed of the battery pole pieces will affect the tension of the battery pole pieces, and the feeding speed of the battery pole pieces is controlled by the motor. In the roller press system of this application, when the sensor senses that the dancer roller has shifted to a certain side, through the detected position of the dancer roller, the motor's original rotation speed is slightly increased or decreased, thereby slightly speeding up or slowing down. The feeding speed of the battery pole piece is adjusted until the floating roller returns from the offset position to the neutral position, thus ensuring stable tension control during the entire feeding process. The floating roller can always be in the neutral position to ensure stable tension.

When using this rolling system, first install various components and ensure that there is no obstruction between the detection block 20 and the sensor 30 . Adjust the initial position of the dancer roller 100 to zero. By adjusting the air pressure of the cylinder to zero, the dancer roller 100 will automatically droop under the action of its own gravity. At this time, the dancer roller 100 is in the neutral position, that is, when the system is operating normally, the dancer roller 100 will The working position of roller 100. Then, the position of the connecting disk 40 remains unchanged to adjust the distance between the sensor 30 and the detection block 20. At different distances, the sensor 30 will output different induced currents. Record the detection distance L1 ₀ detected by the initial state sensor 30 and the distance L2 between the detection point on the detection block 20 and the center of the connecting disc 40 .

After the initial position zero adjustment of the dancer roller 100 is completed, the required feeding tension is adjusted by adjusting the given air pressure of the cylinder, and then system production can be started.

When the equipment is operating normally, the floating roller 100 is in the neutral position, and the detection distance detected by the sensor 30 is L1 ₀ . When the material feeding tension fluctuates, the floating roller 100 will swing, and the detection distance between the sensor 30 and the detection block 20 will change. , the detection distance output by the sensor 30 is L1 ₁ , thus the current specific position of the dancer roller 100 can be detected.

When the specific offset position of the dancer roller 100 is obtained, the PLC will control the rotation speed of the motor, slightly increase or decrease the rotation speed from the original rotation speed of the motor, thereby controlling the material feeding speed until the dancer roller 100 returns to the offset position. The original neutral position ensures high-precision and stable tension control throughout the entire material feeding process to ensure good production accuracy.

The embodiment of the present application provides a rolling system. The rolling system includes a dancer roller position adjustment device, a dancer roller 100 , a support 110 , and a swing bar 90 . The dancer position adjustment equipment includes a dancer position detection device, a limiting device 80, an adjustment rod 60 and a cylinder. The dancer position detection device includes a rotating roller 10, a detection block 20, a sensor 30, a connecting disk 40 and a connecting rod 50.

The support 110 has a mounting hole 111 for the rotating roller 10 to pass through, and the rotating roller 10 can rotate in the mounting hole 111 . One end of the swing rod 90 is pivotally connected to the floating roller 100 , and the other end of the swing rod 90 is fixedly connected to the side surface of the rotating roller 10 . The connecting rod 50 is coaxially and fixedly connected to the rotating roller 10 , and the connecting disc 40 is coaxially and fixedly connected to the connecting rod 50 . The detection block 20 is fixedly connected to the end surface of the connecting disc 40 . The sensor 30 is fixed on the support 110 . One end of the adjusting rod 60 is fixedly connected to the connecting rod 50 , the other end of the adjusting rod 60 is fixedly connected to the piston rod of the cylinder, and the cylinder barrel of the cylinder is fixedly connected to the support 110 . The limiting device 80 is located on one side of the adjusting rod 60 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A floating roller position detection device, including:

A rotating roller (10), the rotating roller (10) is connected to the floating roller (100) so that the floating roller (100) can swing around the rotation axis of the rotating roller (10);

detectBlock(20);

Sensor (30), the sensor (30) is used to detect the detection distance L1 between the sensor (30) and the detection block (20), the detection distance L1 is used to characterize the detection block (20) The relative position to the sensor (30);

Wherein, one of the detection block (20) and the sensor (30) is fixedly arranged relative to the rotating roller (10), and the other of the detection block (20) and the sensor (30) is arranged At a position of the rotating roller (10) deviating from the rotation axis of the rotating roller (10), the detection distance L1 changes with the rotation of the rotating roller (10). There is a mapping relationship between the angle α and the detection distance L1.
The dancer position detection device according to claim 1, wherein the dancer position detection device further includes:

The connecting disc (40) is rigidly connected to the rotating roller (10), wherein the rotating axis of the connecting disc (40) is parallel to the rotating axis of the rotating roller (10), and the detection block (20) ) and the other one of the sensors (30) arranged at a position deviated from the rotation axis of the rotating roller (10) is fixedly connected to the end surface of the connecting disk (40).
The dancer position detection device according to claim 2, wherein:

The connecting disc (40) is coaxially fixedly connected to the rotating roller (10);

The detection block (20) is connected to the end surface of the connecting disc (40) on the side away from the rotating roller (10).
The dancer position detection device according to any one of claims 1 to 3, wherein the sensor (30) includes an optical fiber sensor.
The dancer position detection device according to any one of claims 1 to 4, wherein the rotation angle α is equal to or greater than 0 degrees and equal to or less than 30 degrees.
A dancer roller position adjustment device, including:

The dancer position detection device according to any one of claims 1 to 5;

An adjustment device is electrically connected to the sensor (30), and is configured to adjust the swing of the floating roller (100) according to the detection distance L1.
The dancer roller position adjustment equipment according to claim 6, wherein the adjustment device includes:

The adjusting rod (60) has one end fixedly connected to the central axis of the rotating roller (10);

The driver (70) is fixedly connected to the other end of the adjustment rod (60), the driver (70) is electrically connected to the sensor (30), and the driver (70) is configured to adjust the detection distance L1 according to the detection distance L1. The adjusting rod (60) is driven to rotate.
The dancer position adjusting device according to claim 7, wherein the driver (70) includes a cylinder, the fixed end (701) of the cylinder is fixedly arranged, and the telescopic end (702) of the cylinder is connected to the adjusting rod. The other end of (60) is fixedly connected.
The dancer position adjustment device according to claim 8, wherein the cylinder barrel of the cylinder includes the fixed end (701), and the piston rod of the cylinder includes the telescopic end (702).
The dancer roller position adjusting device according to any one of claims 7 to 9, wherein the extending direction of the adjusting rod (60) intersects the extending direction of the rotating roller (10).
The dancer position adjustment device according to any one of claims 6 to 10, wherein the dancer position adjustment device further includes:

A memory used to store the mapping relationship.
The dancer roller position adjustment device according to any one of claims 7 to 10, wherein the dancer roller position adjustment device further includes:

A limiting device (80) is located on one side of the adjusting rod (60), and the limiting device (80) is configured to limit the rotation range of the adjusting rod (60).
A rolling system includes the dancer position adjustment device as claimed in any one of claims 6 to 12 and a dancer (100), the dancer (100) being connected to the rotating roller (10).
The rolling system of claim 13, wherein the rolling system further includes:

One end of the swing rod (90) is pivotally connected to the floating roller (100), and the other end is fixedly connected to the side of the rotating roller (10).
The rolling system according to claim 13 or 14, wherein the rolling system further includes:

Support (110), the support (110) includes a mounting hole (111), the rotating roller (10) passes through the mounting hole (111), and the rotating roller (10) can be in the Turn it into the mounting hole (111).