Buffering mechanism and winding machine

Abstract

The utility model discloses a temporary storage mechanism and a winding machine, the temporary storage mechanism comprises a lifting assembly, the lifting assembly comprises a mounting seat, and the mounting seat is provided with a reflection part and a temporary storage roller used for adjusting the tension force of a pole piece; the ultrasonic sensor is positioned above the reflecting component so as to detect the height position of the reflecting component; the driving assembly can drive the mounting base to move in the height direction, the driving assembly is electrically connected with the ultrasonic sensor, and the driving assembly can drive the buffer storage roller to float up and down so as to store and release the pole pieces wound on the buffer storage roller and achieve the buffer storage function; according to the buffering mechanism, the buffering function of the pole piece can be realized on the premise of ensuring that the welding and rubberizing positions and the like of the pole piece can fall on the corresponding station positions, the stable transmission of the pole piece is ensured, and winding machine equipment using the buffering mechanism can run continuously.

Description

Technical Field

[0001] This application is used in the technical field of pole piece transportation, and particularly relates to a buffer mechanism and a winding machine. Background Art

[0002] Currently, in the winding machine equipment of the lithium battery industry, a buffer mechanism is often used to control the length of the pole piece to workstations such as welding and pasting. When abnormal pieces (such as splicing pieces, defective pieces, etc.) appear in the equipment, the position of the buffer can be adjusted so that the welding and pasting positions of the pole piece can fall on the corresponding workstation positions, facilitating the continuous operation of the equipment.

[0003] The buffer mechanism of the existing winding machine usually detects the position of the pole piece in two ways: photoelectric switches or displacement sensors. In the former case, the photoelectric switch generally controls and drives the movement of the buffer mechanism after detecting position information such as upper and lower limits, full and empty material levels, etc., and cannot real-time monitor the specific position of the buffer roller, so it cannot real-time monitor the length of the material tape in the buffer mechanism. In the latter case, the displacement sensor can real-time monitor the length of the material tape in the buffer mechanism, but generally considering cost factors, it will monitor the position of the sliding wheel driven by the rear cylinder. Since there are usually 2 groups or more sliding wheels, there is a large error when transmitted to the front buffer roller, and the accuracy is poor. Summary of the Utility Model

[0004] The purpose of this application is to at least solve one of the technical problems existing in the prior art, and provide a buffer mechanism and a winding machine. Among them, the buffer mechanism can make the pole piece fall on the corresponding workstation position, and when applied to the winding machine, it can make the winding machine equipment operate continuously.

[0005] The technical solution adopted by this application to solve its technical problems is:

[0006] A buffer mechanism, comprising

[0007] a lifting component, the lifting component includes a mounting seat, and a reflection component and a buffer roller for adjusting the tension of the pole piece are arranged on the mounting seat;

[0008] an ultrasonic sensor, the ultrasonic sensor is located above the reflection component to detect the height position of the reflection component;

[0009] a driving component, the driving component can drive the mounting seat to move in the height direction, and the driving component is electrically connected to the ultrasonic sensor.

[0010] In some embodiments of this application, it includes a support plate arranged in the height direction. The lifting component is located on the left side of the support plate, the driving component is installed on the right side of the support plate, and the ultrasonic sensor is installed on the left side of the support plate.

[0011] In some embodiments of the present application, the reflection component includes a reflection baffle, and the reflection baffle is located between the mounting base and the support plate.

[0012] In some embodiments of the present application, an installation frame is provided on the right side of the support plate, and the driving assembly includes a cylinder, and the cylinder is arranged on the installation frame.

[0013] In some embodiments of the present application, the driving assembly includes a belt, the left end of the belt is fixedly connected to the mounting base, and the right end of the belt is fixed on the installation frame.

[0014] In some embodiments of the present application, the driving assembly includes a lifting component, the output shaft of the cylinder is connected to the lifting component, a pulley is installed on the lifting component, and the belt is wound around the pulley.

[0015] In some embodiments of the present application, a slide rail is provided on the installation frame, the slide rail is arranged in the height direction, and a sliding groove cooperating with the slide rail is provided on the lifting component.

[0016] In some embodiments of the present application, a guide wheel is provided on the installation frame, and the belt is wound around the guide wheel.

[0017] In some embodiments of the present application, a fixed roller is provided below the buffer roller, and a strip for transporting the pole piece is wound between the buffer roller and the fixed roller.

[0018] The present application further provides a winding machine, including a winding machine body and the buffer mechanism in the above embodiments. The winding machine body includes a housing, and the support plate is embedded in the housing.

[0019] At least one of the technical solutions in the above technical solutions has the following advantages or beneficial effects: The signal emitted by the ultrasonic sensor in the buffer mechanism can be reflected by the reflection component, and the reflected signal is received by the ultrasonic sensor, so as to obtain the position information of the reflection component. Since the reflection component is arranged on the mounting base, the relative position of the buffer roller on the mounting base can be obtained. The ultrasonic sensor is electrically connected to the driving assembly, and the driving assembly works according to the detected position information to drive the buffer roller to float up and down, for storing and releasing the pole pieces wound on the buffer roller. If it is detected that the position of the buffer roller is close to the upper side, it proves that the buffer amount of the pole pieces is large at this time, and the driving assembly drives the buffer roller to move down to reduce the storage amount of the pole pieces; if it is detected that the buffer roller is below, it proves that the buffer amount of the pole pieces is small at this time, and the driving assembly drives the buffer roller to move up to increase the storage amount of the pole pieces for timely feeding. This buffer mechanism can make the welding, glue sticking position, etc. of the pole pieces fall on the corresponding station positions, and can make the winding machine equipment run continuously when applied to the winding machine.

[0020] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0022] Figure 1 is a schematic structural diagram of an embodiment of the cache mechanism in the present application;

[0023] Figure 2 is a left view of an embodiment of the cache mechanism in the present application;

[0024] Figure 3 is a perspective view of an embodiment of the cache mechanism in the present application. Detailed Description of the Embodiments

[0025] This part will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application. However, it should not be construed as a limitation on the protection scope of the present application.

[0026] In the present application, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of the present application, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application.

[0027] In the present application, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "exceeding", etc. are understood not to include the present number; "above", "below", "within", etc. are understood to include the present number. In the description of the present application, if "first" and "second" are described, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the technical features indicated or the sequence relationship of the technical features indicated.

[0028] In the present application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0029] Among them, Figure 1 、 Figure 2 and Figure 3 give the reference direction coordinate system of the embodiments of the present application. The following will describe the embodiments of the present application in conjunction with the directions shown in Figure 1 、 Figure 2 and Figure 3 .

[0030] An embodiment of the present application provides a buffer mechanism. Refer to Figure 1 、 Figure 2 and Figure 3 , which includes a lifting component 100, an ultrasonic sensor 200 and a driving component 300. The lifting component 100 includes a mounting seat 110. A reflecting component 120 and a buffer roller 130 for adjusting the tension of the pole piece are provided on the mounting seat 110. The ultrasonic sensor 200 is located above the reflecting component 120 to detect the height position of the reflecting component 120. The driving component 300 can drive the mounting seat 110 to move in the height direction. The driving component 300 is electrically connected to the ultrasonic sensor 200.

[0031] This buffer mechanism can be applied to the winding equipment in the lithium battery industry. The mechanical wave emitted by the ultrasonic sensor 200 can be reflected by the reflecting component 120, and the reflected signal is received by the ultrasonic sensor 200, so as to obtain the position information of the reflecting component 120. Since the reflecting component 120 is provided on the mounting seat 110, the relative position of the buffer roller 130 on the mounting seat 110 can be obtained. The ultrasonic sensor 200 is electrically connected to the driving component 300. According to the detected position information, the driving component 300 is made to work to drive the buffer roller 130 to float up and down, for storing and releasing the pole pieces wound on the buffer roller 130, realizing the buffer function. If it is detected that the position of the buffer roller 130 is close to the upper side, it proves that the buffer amount of the pole pieces is large at this time, and the driving component 300 drives the buffer roller 130 to move down to reduce the storage amount of the pole pieces; if it is detected that the buffer roller 130 is at the lower side, it proves that the buffer amount of the pole pieces is small at this time, and the driving component 300 drives the buffer roller 130 to move up to increase the storage amount of the pole pieces for timely feeding. This buffer mechanism can realize the buffer function of the pole pieces on the premise that the welding and pasting positions of the pole pieces can fall on the corresponding station positions, ensure the stable transmission of the pole pieces, and the winding machine equipment using this buffer mechanism can operate continuously.

[0032] In some embodiments, the buffer mechanism includes a support plate 400 arranged in the height direction. The lifting assembly 100 is located on the left side of the support plate 400, the driving assembly 300 is installed on the right side of the support plate 400, and the ultrasonic sensor 200 is installed on the left side of the support plate 400. In this way, the buffer mechanism can be installed on the winding machine. The support plate 400 serves as a part of the winding machine housing. At this time, the lifting assembly 100 is located outside the winding machine, and the driving assembly 300 is located inside the winding machine, making the overall appearance of the winding machine simple and enhancing the stability and reliability of the entire winding machine.

[0033] In some embodiments, the reflecting member 120 includes a reflecting baffle. The reflecting baffle is located between the mounting seat 110 and the support plate 400. The buffer mechanism uses the ultrasonic sensor to detect the position of the buffer roller 130. The buffer roller 130 is rotatably connected to the mounting seat 110 to transport the pole piece. The reflecting baffle is fixedly connected to the mounting seat 110 with screws. Specifically, the ultrasonic sensor sends ultrasonic waves, and then the reflecting baffle reflects a part of the ultrasonic waves. The ultrasonic sensor receives these reflected waves. The ultrasonic sensor measures the time difference between sending the ultrasonic waves and receiving the reflected waves, calculates the distance between the ultrasonic sensor and the reflecting baffle, and determines the position of the reflecting baffle by measuring multiple times and combining other information.

[0034] In some embodiments, an installation frame 410 is provided on the right side of the support plate 400. The driving assembly 300 includes a cylinder 310. The cylinder 310 is arranged on the installation frame 410. By controlling the pressure of the cylinder, the pole piece in the buffer roller 130 can be stored and released more accurately. The installation frame 410 provides stable support for the cylinder 310, ensuring that it will not shake or move during the working process, and can help the cylinder 310 and the lifting component 330, etc., to be accurately positioned and aligned to the required positions, playing a certain protective role for the installed cylinder 310 and the lifting component 330, reducing the influence of the external environment on them, and making the overall buffer mechanism neat and beautiful.

[0035] In some embodiments, the driving assembly 300 includes a belt 320. The left end of the belt 320 is fixedly connected to the mounting seat 110, and the right end of the belt 320 is fixed on the installation frame 410. Specifically, by the method of fixing with a pressing block screw, the left end of the belt 320 is pressed and fixed on the mounting seat 110. Using the belt 320 for connection has a relatively simple structure, is easy to maintain, has a low cost, runs smoothly, and has relatively low noise.

[0036] In some embodiments, the driving assembly 300 includes a lifting member 330. The output shaft of the cylinder 310 is connected to the lifting member 330. A pulley 331 is mounted on the lifting member 330, and the belt 320 is wound around the pulley 331. The cylinder 310 is connected to the pulley 331. When the belt 320 is stretched downward, since the left side of the belt 320 is fixedly connected to the mounting seat 110, the mounting seat 110 moves upward. In this way, by adjusting the magnitude of the cylinder force, the mounting seat 110 mounted with the buffer roller 130 can be pulled, providing tension to the pole piece strip on the buffer roller 130. Pulling the mounting seat 110 through the belt by means of the pulley 331 can effectively reduce energy loss, make the movement of the mounting seat 110 smoother, be suitable for long-distance power transmission, be easy to install and maintain, and can achieve precise movement of the mounting seat 110.

[0037] In some embodiments, a slide rail 411 is provided on the mounting frame 410. The slide rail 411 is arranged in the height direction. A chute matching with the slide rail 411 is provided on the lifting member 330. Providing a chute on the lifting member 330 that matches the slide rail 411 can facilitate the up-and-down movement of the lifting member 330, effectively reduce friction, make the movement of the lifting member 330 smoother. At the same time, the guide rail 411 can provide guidance, ensure that the lifting member 330 works along an accurate movement trajectory, increase the stability of the lifting member 330, prevent the lifting member 330 from deviating, and also facilitate the installation and maintenance of the lifting member 330.

[0038] In some embodiments, a guide pulley 412 is provided on the mounting frame 410, and the belt 320 is wound around the guide pulley 412. Using the guide pulley 412 to guide the belt 320 can improve the transmission efficiency, reduce energy loss, lower the noise level, increase the belt life: reduce wear, and can achieve precise transmission, ensure the accuracy of the belt movement position, and enable the belt 320 to turn flexibly, etc.

[0039] In some embodiments, a fixed roller 500 is provided below the buffer roller 130. A strip for transporting the pole piece 510 is wound between the buffer roller 130 and the fixed roller 500. Specifically, during the pole piece tape running process, the buffer roller 130 is driven to rotate. In other words, the buffer roller 130 and the fixed roller 500 transport the pole piece by rotating. The buffer roller 130 is used for temporarily storing the pole piece, and its rotation can transfer the pole piece from one position to another position. The driving assembly 300 pulls the buffer roller 130 to provide tension for pulling the buffer roller 130 upward. During the transportation process, the rotation speed and direction of the buffer roller 130 and the fixed roller 500 will be adjusted according to the specific process flow. Using this transportation method of the buffer roller 130 and the fixed roller 500 to transport the pole piece 130 can ensure the smooth flow of the pole piece on the production line and meet the requirements of different processes.

[0040] In the past, the cache mechanism usually detected the position of the pole piece by means of an optoelectronic switch or a displacement ultrasonic sensor. Among them, the optoelectronic switch cannot achieve real-time control, and the displacement ultrasonic sensor has poor accuracy due to cost considerations. The cache mechanism in this application can control the storage and release of the pole piece in the cache mechanism in real time and with relatively high precision. The cache mechanism in this application detects the position of the cache roller through a ultrasonic sensor, and then feeds it back to the industrial control computer. The industrial control computer is connected to the cylinder. If it is detected that the position of the cache roller 130 is close to the upper side, it proves that the cache volume of the pole piece is large at this time. The cylinder 310 pushes the pulley 331 upward, thereby driving the cache roller 130 downward to reduce the storage volume of the pole piece; if it is detected that the cache roller 130 is below, it proves that the cache volume of the pole piece is small at this time. The cylinder 310 pushes the pulley 331 downward, thereby driving the cache roller 130 upward to increase the storage volume of the pole piece, so as to replenish the material of the cache mechanism in time. This cache mechanism can realize the cache function of the pole piece on the premise that the welding and gluing positions of the pole piece can fall on the corresponding station positions, ensure the stable transmission of the pole piece, and the winding machine equipment using this cache mechanism can operate continuously.

[0041] This application also provides a winding machine, which includes a winding machine body and the cache mechanism in the above embodiment. The winding machine body includes a housing, and the support plate 400 is embedded in the housing.

[0042] The reflection baffle is directly connected to the cache roller and moves together. The ultrasonic sensor emits mechanical waves. When the mechanical waves reach the reflection baffle, they will return to the ultrasonic sensor, so as to detect the position of the reflection baffle. The driving cylinder is connected to the sliding wheel and is connected to the cache roller through a belt. When it is detected that the position of the cache roller is too low (the storage volume is too small), the driving cylinder pulls the sliding wheel downward, so that the cache roller moves upward to increase the storage volume of the mechanism for the pole piece; when it is detected that the position of the cache roller is too high (the storage volume is too large), the driving cylinder pushes the sliding wheel upward, so that the cache roller moves downward to reduce the storage volume of the mechanism for the pole piece.

[0043] In the description of this specification, the description with reference to terms such as "example", "embodiment" or "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of this application, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A caching mechanism, characterized in that, including a lifting component, the lifting component includes a mounting seat, and a reflecting component and a buffer roller for adjusting the tension of the pole piece are arranged on the mounting seat; an ultrasonic sensor, the ultrasonic sensor is located above the reflecting component to detect the height position of the reflecting component; a driving component, the driving component can drive the mounting seat to move in the height direction, and the driving component is electrically connected to the ultrasonic sensor.

2. The cache mechanism according to claim 1, wherein It includes a support plate arranged in the height direction, the lifting component is located on the left side of the support plate, the driving component is installed on the right side of the support plate, and the ultrasonic sensor is installed on the left side of the support plate.

3. The cache mechanism according to claim 2, wherein The reflecting component includes a reflecting baffle, and the reflecting baffle is located between the mounting seat and the support plate.

4. The cache mechanism according to claim 2, wherein An installation frame is arranged on the right side of the support plate, and the driving component includes a cylinder, and the cylinder is arranged on the installation frame.

5. The caching mechanism according to claim 4, wherein The driving component includes a belt, the left end of the belt is fixedly connected to the mounting seat, and the right end of the belt is fixed on the installation frame.

6. The cache mechanism according to claim 5, wherein The driving component includes a lifting part, the output shaft of the cylinder is connected to the lifting part, and a pulley is installed on the lifting part, and the belt is wound around the pulley.

7. The caching mechanism according to claim 6, wherein, A slide rail is arranged on the installation frame, the slide rail is arranged in the height direction, and a slide groove matched with the slide rail is arranged on the lifting part.

8. The caching mechanism according to claim 5, characterized in that, A guide wheel is arranged on the installation frame, and the belt is wound around the guide wheel.

9. The caching mechanism according to claim 2, wherein A fixed roller is arranged below the buffer roller, and a strip for transporting the pole piece is wound between the buffer roller and the fixed roller.

10. A winding machine, characterized in that: It includes a winding machine body and the buffer mechanism according to any one of claims 2 to 9, the winding machine body includes a housing, and the support plate is embedded in the housing.

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