Film strip caching mechanism

Abstract

The utility model provides a film strip temporary storage mechanism which comprises a mounting frame and n temporary storage pieces, the n temporary storage pieces are mounted on the mounting frame, each film strip sent out by a material pulling mechanism bypasses the corresponding temporary storage piece, and each temporary storage piece can be independently close to or away from the discharging end of the material pulling mechanism; and each cache piece is used for caching and adaptively tensioning the film strip bypassing the cache piece. According to the film strip temporary storage mechanism, when the material pulling mechanism releases the film strips, each temporary storage piece is independently away from the discharging end of the material pulling mechanism, and therefore the film strips are temporarily stored between the material pulling mechanism and the temporary storage pieces. When the material pulling mechanism stops discharging, each temporary storage piece is close to the discharging end of the material pulling mechanism under the action of the tensile force formed when the film strips move, and in the process, each temporary storage piece adjusts the moving speed in a self-adaptive mode according to the tensile force applied by the corresponding film strip, so that the tensile force generated when each temporarily stored film strip leaves the corresponding temporary storage piece is adjusted, and therefore the film strips can be fed back to the discharging end of the material pulling mechanism. And it is ensured that the n film strips are all supplied to a material using station in a tensioned state.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell assembly production, and specifically to a film strip buffer mechanism. Background Art

[0002] A battery string is made up of battery cells and a welding ribbon group. The welding ribbon group includes multiple welding ribbons. Since the welding ribbon itself is not sticky, it may not form a firm connection between the welding ribbon and the battery cell. To solve this problem, a feasible solution is to use multiple film strips to bond the welding ribbons to the battery cells one by one.

[0003] In the prior art, a plurality of film strips are generally pulled from a roll by a pulling mechanism and sent to a stringing station. Due to the problems of processing precision and torque, in actual production, it is impossible to ensure that the pulling force applied by the pulling mechanism to each film strip is exactly the same, resulting in some film strips being in a loose state after being pulled out by the pulling mechanism, affecting the subsequent stringing operation. Utility Model Content

[0004] In view of the above problems existing in the traditional film strip feeding method, the present application provides a film strip buffer mechanism, and its detailed technical solution is as follows:

[0005] A film strip caching mechanism comprises a mounting frame and n caching members, wherein:

[0006] n buffer elements are installed on the mounting frame, and each film strip sent out by the material pulling mechanism bypasses the corresponding buffer element, and each buffer element can independently approach or move away from the discharge end of the material pulling mechanism;

[0007] Each buffer element is used to buffer and adaptively tension the membrane strip passing around itself.

[0008] The film strip cache mechanism provided by the present application is provided with n cache parts, and the n film strips released from the material pulling mechanism are sent to the material using station after bypassing the cache parts one by one. When the material pulling mechanism releases the film strip, each cache part independently moves away from the material discharging end of the material pulling mechanism, so that the film strip is cached between the material pulling mechanism and the cache part. In this process, each cache part adaptively adjusts its own moving speed according to the pressure applied by the corresponding film strip, so as to adjust the tension of each cached film strip. When the material pulling mechanism stops discharging, the cache part transports the film strip to the material using station, and each cache part approaches the material discharging end of the material pulling mechanism under the action of the tension formed when the film strip moves. In this process, each cache part adaptively adjusts its own moving speed according to the tension applied by the corresponding film strip, so as to adjust the tension of each cached film strip when leaving the corresponding cache part, and ensures that the n film strips leave the cache part in a tensioned state and are supplied to the material using station.

[0009] In some embodiments, the cache member includes a guide assembly and a cache wheel, wherein: the guide assembly is installed on a mounting frame, the cache wheel is slidably installed on a sliding end of the guide assembly, the cache wheel can rotate along its own axis, and the film strips sent out by the pulling mechanism all bypass the cache wheel; the cache wheel can slide along the first end of the guide assembly to the second end under the action of at least one of its own gravity, magnetic force or elastic force; the cache wheel can slide along the second end of the guide assembly to the first end under the pull of the film strip bypassing itself.

[0010] A structure for implementing a buffer component is provided. When a material pulling mechanism releases a film strip, the buffer wheel slides from the first end of a guide component to the second end under the action of at least one of its own gravity, magnetic force or elastic force, thereby buffering the film strip between the material pulling mechanism and the buffer wheel. In this process, each buffer wheel adaptively adjusts its own sliding speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each buffered film strip. When the material pulling mechanism stops releasing the material, each buffer wheel slides from the second end of the guide component to the first end under the action of the tension formed when the film strip moves. In this process, each buffer wheel adaptively adjusts its own sliding speed according to the tension applied by the corresponding film strip, thereby adjusting the tension of each buffered film strip when it leaves the corresponding buffer wheel, thereby ensuring that n film strips leave the buffer wheel in a tensioned state and are supplied to the material use station.

[0011] In some embodiments, the guide assembly includes a slidably matched guide rail and a slider, wherein: the guide rail is installed on the mounting frame in a vertical direction or inclined downward, and the discharge end of the pulling mechanism is close to the first end of the guide rail located above; the cache wheel is rotatably installed on the slider of the guide assembly; when the pulling mechanism releases the film strip to the cache wheel, the slider and the cache wheel slide from the first end of the guide rail to the second end under the action of their own gravity to cache the film strip and adjust the tension of the film strip at the same time; when the pulling mechanism stops discharging the film strip, the cache wheel transports the film strip to the material use station, and the slider and the cache wheel slide from the second end of the guide rail to the first end under the pull of the film strip to release the film strip and adjust the tension of the film strip at the same time.

[0012] A guide assembly implementation structure is provided. When a material pulling mechanism releases a film strip, a cache wheel slides downward along a guide rail under the action of its own weight, thereby caching the film strip between the material pulling mechanism and the cache wheel. In this process, each cache wheel adaptively adjusts its own moving speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each cached film strip. When the material pulling mechanism stops releasing the material, the film strip is pulled upward when it moves, and the tension formed when the film strip moves is greater than the gravity of the cache wheel itself, so that each cache wheel slides upward along the guide rail under the tension of the film strip. In this process, each cache wheel adaptively adjusts its own sliding speed according to the tension applied by the corresponding film strip, thereby adjusting the tension of each cached film strip when it leaves the corresponding cache wheel, and finally ensures that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station. When the material pulling mechanism releases the film strip, the cache wheel only slides downward along the guide rail under the action of its own weight, thereby caching the film strip between the material pulling mechanism and the cache wheel, which makes the structure of the cache component simpler.

[0013] In some embodiments, the guide assembly includes a first elastic member and a slidably matched guide rail and slider, wherein: the guide rail is installed on the mounting frame in a vertical direction or obliquely upward, and the discharge end of the pulling mechanism is close to the first end of the guide rail located below; the first end of the first elastic member is fixed to the first end of the guide rail, and the second end of the first elastic member is fixed to the slider, and each cache wheel is rotatably installed on the slider of a guide assembly; when the pulling mechanism releases the film strip to the cache wheel, the slider and the cache wheel slide from the first end of the guide rail to the second end under the elastic force of the first elastic member to cache the film strip while adjusting the tension of the film strip; when the pulling mechanism stops discharging the film strip, the cache wheel transports the film strip to the material use station, and the slider and the cache wheel slide from the second end of the guide rail to the first end under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

[0014] Another implementation structure of the guide assembly is provided. When the material pulling mechanism releases the film strip, the cache wheel slides upward along the guide rail under the elastic push of the first elastic member, so that the film strip is cached between the material pulling mechanism and the cache wheel. In this process, each cache wheel adaptively adjusts its own sliding speed according to the pressure applied by the corresponding film strip, so as to adjust the tension of each cached film strip. When the material pulling mechanism stops releasing the material, the film strip pulls the cache wheel upward when it moves, and the tension formed when the film strip moves is greater than the thrust of the first elastic member and the gravity of the cache wheel itself, so that each cache wheel slides upward along the guide rail under the tension of the film strip. In this process, each cache wheel adaptively adjusts its own sliding speed according to the tension applied by the corresponding film strip, so as to adjust the tension of each cached film strip when it leaves the corresponding cache wheel, and finally ensures that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station.

[0015] In some embodiments, the guide assembly includes a first magnet, a second magnet, and a slidably matched guide rail and slider, wherein: the guide rail is mounted on a mounting frame in a vertical direction or inclined upward, and the discharge end of the pulling mechanism is close to the first end of the guide rail located below; the first magnet is fixed to the first end of the guide rail, and the second magnet is fixed to the slider, and the opposite sides of the first magnet and the second magnet repel each other with the same polarity, and each cache wheel is rotatably mounted on the slider of a guide assembly; when the pulling mechanism releases the film strip to the cache wheel, the slider and the cache wheel slide from the first end of the guide rail to the second end under the action of the magnetic force of the first magnet and the second magnet, so as to cache the film strip and adjust the tension of the film strip at the same time; when the pulling mechanism stops discharging the material, the cache wheel transports the film strip to the material use station, and the slider and the cache wheel slide from the second end of the guide rail to the first end under the pull of the film strip, so as to release the film strip and adjust the tension of the film strip at the same time.

[0016] Another implementation structure of a guide assembly is provided. When the material pulling mechanism releases the film strip, the cache wheel slides upward along the guide rail under the action of the magnetic repulsion of the first magnet and the second magnet, so that the film strip is cached between the material pulling mechanism and the cache wheel. In this process, each cache wheel adaptively adjusts its own sliding speed according to the pressure applied by the corresponding film strip, so as to adjust the tension of each cached film strip. When the material pulling mechanism stops releasing the material, the film strip moves and pulls the cache wheel upward, and the tension formed when the film strip moves is greater than the magnetic repulsion of the first magnet and the second magnet and the gravity of the cache wheel itself, so that each cache wheel slides upward along the guide rail under the action of the tension of the film strip. In this process, each cache wheel adaptively adjusts its own sliding speed according to the tension applied by the corresponding film strip, so as to adjust the tension of each cached film strip when it leaves the corresponding cache wheel, and finally ensures that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station.

[0017] In some embodiments, the cache member includes a swinging member and a cache wheel, wherein: the rotating end of the swinging member is installed on a mounting frame, the swinging member can rotate along its own rotating end, the cache wheel can be rotatably installed on the swinging end of the swinging member, and the film strips sent out by the pulling mechanism all bypass a corresponding cache wheel; the cache wheel can swing from the first end to the second end of the swinging path of the swinging member under the action of at least one of its own gravity, magnetic force or elastic force; the cache wheel can swing from the second end to the first end of the swinging path of the swinging member under the pull of the film strip bypassing itself.

[0018] A structure for implementing a buffer is provided. When a material pulling mechanism releases a film strip, each buffer wheel swings from the first end of the swing path of the swing member to the second end under the action of at least one of its own gravity, magnetic force or elastic force, thereby buffering the film strip between the material pulling mechanism and the material pulling mechanism. In this process, each buffer wheel adaptively adjusts its own swing speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each buffered film strip. When the material pulling mechanism stops releasing the material, each buffer wheel swings from the second end of the swing path of the swing member to the first end under the action of the tension formed when the film strip moves. In this process, each buffer wheel adaptively adjusts its own swing speed according to the tension applied by the corresponding film strip, thereby adjusting the tension of each buffered film strip when it leaves the corresponding buffer wheel, ensuring that n film strips leave the buffer wheel in a tensioned state and are supplied to the material use station.

[0019] In some embodiments, the discharge end of the pulling mechanism is close to the first end of the swing path of the swinging member; when the pulling mechanism releases the film strip to the cache wheel, the cache wheel swings from the first end to the second end of the swing path of the swinging member under the action of its own gravity to cache the film strip and adjust the tension of the film strip at the same time; when the pulling mechanism stops discharging the film strip, the cache wheel transports the film strip to the material use station, and the cache wheel swings from the second end to the first end of the swing path of the swinging member under the pull of the film strip to release the film strip and adjust the tension of the film strip at the same time.

[0020] When the material pulling mechanism releases the film strip, the cache wheel swings from the first end of the swing path of the swing member to the second end under the action of its own weight, so that the film strip is cached between the material pulling mechanism and the cache wheel. In this process, each cache wheel adaptively adjusts its own swing speed according to the pressure applied by the corresponding film strip, so as to adjust the tension of each cached film strip. When the material pulling mechanism stops releasing the material, each cache wheel swings from the second end of the swing path of the swing member to the first end under the action of the tension formed when the film strip moves. In this process, each cache wheel adaptively adjusts its own swing speed according to the tension applied by the corresponding film strip, so as to adjust the tension of each cached film strip when it leaves the corresponding cache wheel, ensuring that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station. When the material pulling mechanism releases the film strip, the cache wheel only swings from the first end of the swing path of the swing member to the second end under the action of its own weight, so that the film strip is cached between the material pulling mechanism and the cache wheel, which makes the structure of the cache member simpler.

[0021] In some embodiments, the cache member also includes a second elastic member, a first end of the second elastic member is fixed to the swinging end of the swinging member, a second end of the second elastic member is fixed to the mounting frame, and a discharge end of the pulling mechanism is close to the first end of the swinging path of the swinging member; when the pulling mechanism releases the film strip to the cache wheel, the cache wheel swings from the first end to the second end of the swinging path of the swinging member under the elastic force of the second elastic member to cache the film strip and adjust the tension of the film strip at the same time; when the pulling mechanism stops discharging the film strip, the cache wheel transports the film strip to the material use station, and the cache wheel swings from the second end to the first end of the swinging path of the swinging member under the pull of the film strip to release the film strip and adjust the tension of the film strip at the same time.

[0022] When the material pulling mechanism releases the film strip, the cache wheel swings from the first end of the swing path of the swing member to the second end under the elastic push of the second elastic member, so that the film strip is cached between the material pulling mechanism and the cache wheel. In this process, each cache wheel adaptively adjusts its own swing speed according to the pressure applied by the corresponding film strip, so as to adjust the tension of each cached film strip. When the material pulling mechanism stops releasing the material, each cache wheel swings from the second end of the swing path of the swing member to the first end under the action of the tension formed when the film strip moves. In this process, each cache wheel adaptively adjusts its own swing speed according to the tension applied by the corresponding film strip, so as to adjust the tension of each cached film strip when it leaves the corresponding cache wheel, ensuring that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station.

[0023] In some embodiments, the cache member includes a third elastic member and a cache wheel, wherein: the third elastic member is elastically deformable, the third elastic member is mounted on a mounting frame, and the cache wheel is rotatably mounted on a deformation end of the third elastic member; when the cache wheel transports the film strip to the material-using station, the third elastic member is elastically deformed under the pull of the film strip, and the cache wheel follows the movement of the deformation end of the third elastic member to adjust the tension of the film strip while releasing the film strip; when the pulling mechanism releases the film strip to the cache wheel, the deformation end of the third elastic member moves to the initial position under the action of its own elastic force, and the cache wheel follows the movement of the deformation end of the third elastic member to adjust the tension of the film strip while caching the film strip.

[0024] A structure for implementing a buffer member is provided. When a material pulling mechanism releases a film strip, the deformed end of the third elastic member moves to the initial position under the action of its own elastic force, and the buffer wheel follows the movement of the deformed end of the third elastic member to adjust the film strip tension while buffering the film strip. When the material pulling mechanism stops releasing the material, the deformed end of the third elastic member moves from the initial position to the deformed position, and the buffer wheel moves with the deformed end of the third elastic member, thereby adjusting the tension of each buffered film strip when it leaves the corresponding buffer wheel, ensuring that n film strips all leave the buffer wheel in a tensioned state and are supplied to the material-using station.

[0025] In some embodiments, the cache member includes an elastic telescopic rod and a cache wheel, wherein: the fixed end of the elastic telescopic rod is installed on a mounting frame, and the cache wheel is rotatably installed on the telescopic end of an elastic telescopic rod; when the pulling mechanism releases the film strip to the cache wheel, the cache wheel slides from the first end to the second end of the telescopic path of the elastic telescopic rod under the action of the elastic force of the elastic telescopic rod, so as to cache the film strip and adjust the tension of the film strip at the same time; when the pulling mechanism stops releasing the material, the cache wheel transports the film strip to the material use station, and the cache wheel slides from the second end to the first end of the telescopic path of the elastic telescopic rod under the pull of the film strip, so as to release the film strip and adjust the tension of the film strip at the same time.

[0026] A structure for implementing a buffering member is provided. When a material pulling mechanism releases a film strip, a buffering wheel slides from a first end of a telescopic path of an elastic telescopic rod to a second end under the elastic force of an elastic telescopic rod. The buffering wheel follows the movement of the elastic telescopic rod to adjust the tension of the film strip while buffering the film strip. When the material pulling mechanism stops releasing the material, the buffering wheel conveys the film strip to a material-using station. The buffering wheel slides from the second end of the telescopic path of the elastic telescopic rod to the first end under the pull of the film strip, thereby adjusting the tension of each buffered film strip when it leaves the corresponding buffering wheel, ensuring that n film strips all leave the buffering wheel in a tensioned state and are supplied to the material-using station.

[0027] In some embodiments, the mounting frame includes a back plate and n / 2 mounting plates, wherein: the n / 2 mounting plates are arranged side by side and spaced apart on the back plate, and the first side of each mounting plate is provided with a step surface having a height difference with the first side surface; the i-th cache component is installed on the first side surface of the (i+1) / 2-th mounting plate, and the i+1-th cache component is installed on the step surface of the (i+1) / 2-th mounting plate, and i is not greater than n.

[0028] By setting the spacing between the mounting plates and the height difference of the step surface, the spacing of the n buffers can be made the same, and finally the spacing between the n membrane strips released is made the same and matches the spacing between the welding strips in the battery string to be stringed. Finally, the n membrane strips supplied to the stringing station in the back-end can be directly used in the battery string connection, without the need to adjust the spacing of the n membrane strips, thereby improving the stringing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the film strip buffer mechanism in the first embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the top view of the film strip buffer mechanism in the first embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the top view of the film strip cache mechanism in the second embodiment of the present application;

[0032] Figure 4It is a schematic diagram of the top view of the film strip buffer mechanism in the third embodiment of the present application;

[0033] Figure 5 Schematic diagram of the top view of the film strip buffer mechanism in the fourth embodiment of the present application;

[0034] Figure 6 Schematic diagram of the top view of the film strip buffer mechanism in the fifth embodiment of the present application;

[0035] Figure 7 Schematic diagram of the top view of the film strip buffer mechanism in the sixth embodiment of the present application;

[0036] Figure 8 Schematic diagram of the top view of the film strip buffer mechanism in the seventh embodiment of the present application;

[0037] Figures 1 to 8 Included:

[0038] Mounting frame 1:

[0039] Back plate 11, mounting plate 12, first side surface 13, step surface 14;

[0040] Cache 2:

[0041] Cache round 21;

[0042] Guide assembly 22: guide rail 221, slider 222, first elastic member 223, first magnet 224, second magnet 225;

[0043] Swinging member 23;

[0044] A second elastic member 24;

[0045] A third elastic member 25;

[0046] Elastic telescopic rod 26. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] In the prior art, a plurality of film strips are generally pulled from a roll by a pulling mechanism and sent to a stringing station. Due to the problems of processing precision and torque, in actual production, it is impossible to ensure that the pulling force applied by the pulling mechanism to each film strip is exactly the same, resulting in some film strips being in a loose state after being pulled out by the pulling mechanism, affecting the subsequent stringing operation.

[0049] In view of this, the present application provides a film strip buffer mechanism. Figure 1 As shown, the film strip caching mechanism provided by the present application includes a mounting frame 1 and n caching members 2, wherein:

[0050] N buffer components 2 are installed on the mounting frame 1, and each film strip sent out by the pulling mechanism bypasses the corresponding buffer component 2, and each buffer component 2 can independently approach or move away from the discharge end of the pulling mechanism. Each buffer component 2 is used to buffer and adaptively tension the film strip bypassing itself.

[0051] The film strip caching mechanism provided in the present application is provided with n caching members 2, and the n film strips released from the pulling mechanism are sent to the subsequent material use station after bypassing the caching members 2 one by one, and the material use station is, for example, a serial connection station for implementing stringing of battery cells.

[0052] The working principle of the membrane strip cache mechanism provided in this application is as follows:

[0053] When the pulling mechanism releases film strips toward n cache components 2, each cache component 2 moves independently to move away from the discharge end of the pulling mechanism, thereby caching the film strips between the pulling mechanism and the cache component 2. During this process, each cache component 2 adaptively adjusts its own moving speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each cached film strip.

[0054] When the pulling mechanism stops discharging material and the buffer component 2 transports the film strips to the material-using station, each buffer component 2 moves close to the discharging end of the pulling mechanism under the action of the pulling force formed when the film strip moves. In this process, each buffer component adaptively adjusts its own moving speed according to the pulling force applied by the corresponding film strip, thereby adjusting the tension of each cached film strip when it leaves the corresponding buffer component, ensuring that n film strips leave the buffer component 2 in a tensioned state and are supplied to the material-using station.

[0055] In order to enable those skilled in the art to more clearly understand the detailed technical solution of the membrane strip cache mechanism of the present application, the structure and working process of the membrane strip cache mechanism of the present application will be exemplarily described below through seven embodiments.

[0056] First embodiment

[0057] like Figure 1 to Figure 2 As shown, the film strip caching mechanism in the embodiment of the present application, its caching component 2 includes a guide assembly 22 and a cache wheel 21, wherein: the guide assembly 22 is installed on the mounting frame 1, and the cache wheel 21 is installed at the sliding end of the guide assembly 22, and the cache wheel 21 can rotate along its own axis, and the film strips delivered by the pulling mechanism all bypass the cache wheel 21.

[0058] Optionally, the guide assembly 22 includes a guide rail 221 and a slider 222 that are slidably matched, wherein the guide rail 221 is mounted on the mounting frame 1 in a vertical direction or tilted downward, and the discharge end of the material pulling mechanism is close to the first end A located above the guide rail, that is, the material pulling mechanism is arranged above the buffer member 2. The buffer wheel 21 is rotatably mounted on the slider 222.

[0059] When the pulling mechanism releases the film strip to the buffer wheel 21 , the slider 222 and the buffer wheel 21 slide from the first end A of the guide rail 221 to the second end B under the action of their own gravity to buffer the film strip and adjust the tension of the film strip at the same time.

[0060] When the pulling mechanism stops discharging material and the cache wheel 21 transports the film strip to the material-using station, the slider 222 and the cache wheel 21 slide from the second end B of the guide rail to the first end A under the pull of the film strip, so as to release the film strip and adjust the tension of the film strip at the same time, thereby ensuring that n film strips leave the cache wheel in a tensioned state and are supplied to the material-using station.

[0061] Of course, when the pulling mechanism releases the film strip, the cache wheel 21 can also slide along the first end A of the guide assembly 22 to the second end B under the combined action of magnetic force, elastic force, or magnetic force and gravity, or elastic force and gravity, thereby caching the film strip between the pulling mechanism and the cache wheel 21.

[0062] Continue to refer Figure 1 and Figure 2 As shown, optionally, the mounting frame 1 includes a back plate 11 and n / 2 mounting plates 12, wherein: the n / 2 mounting plates 12 are arranged side by side and spaced apart on the back plate 11, and a step surface 14 having a step difference with the first side surface 13 is arranged on the first side of each mounting plate 12. The i-th cache element 2 is installed on the first side surface 13 of the (i+1) / 2-th mounting plate 12, and the i+1-th cache element 2 is installed on the step surface 14 of the (i+1) / 2-th mounting plate 12, and i is not greater than n.

[0063] Figure 1 and Figure 2 In , n is 20, that is, the mounting frame 1 includes 10 mounting plates 12. Among them: the first cache component 2 is mounted on the first side surface 13 of the first mounting plate 12, and the second cache component 2 is mounted on the step surface 14 of the first mounting plate 12. The third cache component 2 is mounted on the first side surface 13 of the second mounting plate 12, and the fourth cache component 2 is mounted on the step surface 14 of the second mounting plate 12. By analogy, the 19th cache component 2 is mounted on the first side surface 13 of the 10th mounting plate 12, and the 20th cache component 2 is mounted on the step surface 14 of the 10th mounting plate 12.

[0064] By setting the spacing between the mounting plates 12 and the height difference of the step surface 14, the spacing between the n buffer members 2 can be made the same, and finally the spacing between the n film strips released is made the same and matches the spacing between the welding strips in the battery string to be stringed. Thus, the n film strips supplied to the material station of the back-end can be directly used in the battery string connection, and there is no need to adjust the spacing between the n film strips, thereby improving the stringing efficiency.

[0065] Second embodiment

[0066] The structure of the membrane strip cache mechanism in this embodiment is basically the same as that of the membrane strip cache mechanism in the first embodiment. For the sake of simplicity, only the differences between the membrane strip cache mechanism in this embodiment and the membrane strip cache mechanism in the first embodiment are described here.

[0067] like Figure 3 As shown, the film strip caching mechanism in this embodiment, its guide assembly 22 includes a first elastic member 223 and a guide rail 221 and a slider 222 that are slidably matched. The guide rail 221 is installed on the mounting frame 1 in a vertical direction or tilted upward, and the discharge end of the pulling mechanism 10 is close to the first end A of the guide rail 221 located below. The first end of the first elastic member 223 is fixed to the first end A of the guide rail 221, and the second end of the first elastic member 223 is fixed to the slider 222. Each cache wheel 21 is rotatably installed on the slider 222 of a guide assembly 22.

[0068] When the pulling mechanism 10 releases the film strip, the pressure applied by the film strip to the cache wheel 21 is less than the elastic force applied by the first elastic member 223 to the cache wheel 21. The cache wheel 21 slides upward along the guide rail 221 under the elastic push of the first elastic member 223, thereby caching the film strip between the pulling mechanism 10 and the cache wheel 21. During this process, each cache wheel 21 adaptively adjusts its own sliding speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each cached film strip.

[0069] When the material pulling mechanism 10 stops discharging material, the film strip moves and pulls the cache wheel 21 downward. At this time, the pressure applied by the film strip to the cache wheel 21 is greater than the elastic force applied by the first elastic member 223 to the cache wheel 21, so that each cache wheel 21 slides downward along the guide rail 221 under the pulling force of the film strip. In this process, with the help of the elastic force applied by the elastic member 223 to the cache wheel 21, each cache wheel 21 adaptively adjusts its own sliding speed according to the pulling force applied by the corresponding film strip, thereby adjusting the tension of each cached film strip when it leaves the corresponding cache wheel 21, and finally ensuring that n film strips leave the cache wheel 21 in a tensioned state and are supplied to the material use station.

[0070] Third embodiment

[0071] The film strip cache mechanism in the embodiment of the present application has a substantially same structure as the film strip cache mechanism in the second embodiment. Figure 4 As shown, the difference from the second embodiment is that the embodiment of the present application adopts the first magnet 224 and the second magnet 225 to replace the first elastic member 223 in the second embodiment. Specifically, the first magnet 224 is fixed to the first end A of the guide rail 221, and the second magnet 225 is fixed to the slider 222. The opposite sides of the first magnet 224 and the second magnet 225 repel each other with the same polarity, and each cache wheel 21 is rotatably mounted on a slider 222 of a guide assembly 22.

[0072] When the pulling mechanism 10 releases the film strip, the pressure exerted by the film strip on the cache wheel 21 is less than the magnetic repulsion exerted by the first magnet 224 and the second magnet 225 on the cache wheel 21. Under the action of the magnetic repulsion of the first magnet 224 and the second magnet 225, the cache wheel 21 slides upward along the guide rail 221, thereby caching the film strip between the pulling mechanism 10 and the cache wheel 21. In this process, each cache wheel 21 adaptively adjusts its own sliding speed according to the pressure exerted by the corresponding film strip, thereby adjusting the tension of each cached film strip.

[0073] When the material pulling mechanism 10 stops discharging material, the film strip moves and pulls the cache wheel 21 downward, so that each cache wheel 21 slides downward along the guide rail 221 under the pulling force of the film strip. In this process, each cache wheel 21 adaptively adjusts its own sliding speed according to the pulling force applied by the corresponding film strip, thereby adjusting the tension of each cached film strip when it leaves the corresponding cache wheel 21, and finally ensures that n film strips leave the cache wheel 21 in a tensioned state and are supplied to the material use station.

[0074] Fourth embodiment

[0075] like Figure 5 As shown, the film strip caching mechanism in the embodiment of the present application, its caching member 2 includes a swinging member 23 and a caching wheel 21, wherein: the rotating end of the swinging member 23 is mounted on the mounting frame 1, the swinging member 23 can rotate along its own rotating end, and the caching wheel 21 can be rotatably mounted on the swinging end of the swinging member 23. The discharge end of the pulling mechanism 10 is close to the first end A of the swinging path of the swinging member.

[0076] When the pulling mechanism 10 releases the film strip, the cache wheel 21 swings from the first end A to the second end B of the swinging path of the swinging member under the action of its own gravity, thereby caching the film strip between the pulling mechanism 10 and the cache wheel 21. During this process, each cache wheel 21 adaptively adjusts its own swinging speed according to the pressure applied by the corresponding film strip, thereby adjusting the tension of each cached film strip.

[0077] When the pulling mechanism 10 stops discharging material, each cache wheel 21 swings from the second end B to the first end A of the swinging path of the swinging member under the action of the tension formed when the film strip moves. In this process, each cache wheel 21 adaptively adjusts its own swinging speed according to the tension applied by the corresponding film strip, thereby adjusting the tension of each cached film strip when it leaves the corresponding cache wheel 21, ensuring that n film strips leave the cache wheel in a tensioned state and are supplied to the material use station.

[0078] Of course, when the pulling mechanism 10 releases the film strip, the cache wheel 21 can also swing from the first end A to the second end B of the swinging path of the swinging member under the combined action of magnetic force, elastic force, or magnetic force and gravity, or elastic force and gravity, thereby caching the film strip between the pulling mechanism 10 and the cache wheel 21.

[0079] Fifth embodiment

[0080] The film strip cache mechanism in this embodiment has substantially the same structure as that in the fourth embodiment. For the sake of brevity, only the differences between the film strip cache mechanism in this embodiment and that in the fourth embodiment are described here.

[0081] like Figure 6 As shown, the film strip caching mechanism in this embodiment, its caching member 2 also includes a second elastic member 24, a first end of the second elastic member 24 is fixed to the swing end of the swing member 23, and a second end of the second elastic member 24 is fixed to the mounting frame 1. The discharge end of the pulling mechanism 10 is close to the first end A of the swing path of the swing member 23.

[0082] When the pulling mechanism 10 releases the film strip to the buffer wheel, the buffer wheel 21 swings from the first end A to the second end B of the swing path of the swing member 23 under the elastic force of the second elastic member 24 to buffer the film strip and adjust the tension of the film strip.

[0083] When the pulling mechanism 10 stops discharging material, the buffer wheel 21 transports the film strip to the material-using station. Pulled by the film strip, the buffer wheel 21 swings from the second end B of the swing path of the swing member 23 to the first end A to release the film strip while adjusting the tension of the film strip.

[0084] Sixth embodiment

[0085] like Figure 7 As shown, the film strip caching mechanism in this embodiment has a caching member 2 comprising a third elastic member 25 and a caching wheel 21, wherein the third elastic member 25 is elastically deformable. The third elastic member 25 is mounted on the mounting frame 1, and the caching wheel 21 is rotatably mounted on a deformation end of the third elastic member 25.

[0086] When the pulling mechanism 10 releases the film strip to the buffer wheel, the deformed end of the third elastic member 25 moves to the initial position under its own elastic force, and the buffer wheel 21 follows the movement of the deformed end of the third elastic member to adjust the tension of the film strip while buffering the film strip.

[0087] When the buffer wheel 21 transports the film strip to the material-using station, the third elastic member 25 is elastically deformed under the pull of the film strip, and the buffer wheel 21 follows the movement of the deformed end of the third elastic member 25 to adjust the tension of the film strip while releasing the film strip.

[0088] For example, the third elastic member 25 is an elastic glue stick. When the material pulling mechanism 10 stops feeding and the buffer wheel 21 delivers the film strip to the material-using station, the elastic glue stick is compressed to produce axial contraction or radial bending, so that the buffer wheel 21 follows the movement of the deformed end of the third elastic member 25 to adjust the film strip tension while releasing the film strip. When the material pulling mechanism 10 releases the film strip to the buffer wheel, the elastic glue stick rebounds and stretches or straightens again, and the buffer wheel 21 follows the movement of the deformed end of the elastic glue stick to adjust the film strip tension while buffering the film strip.

[0089] Seventh embodiment

[0090] like Figure 8 As shown, the film strip caching mechanism in this embodiment, its caching component 2 includes an elastic telescopic rod 26 and a caching wheel 21, wherein: the fixed end of the elastic telescopic rod 26 is installed on the mounting frame 1, and the caching wheel 21 is rotatably installed on the telescopic end of an elastic telescopic rod 26.

[0091] When the pulling mechanism 10 releases the film strip toward the cache wheel 21, the elastic telescopic rod 26 extends, and the cache wheel 21 slides from the first end A to the second end B of the telescopic path of the elastic telescopic rod 26 under the elastic force of the elastic telescopic rod 26 to cache the film strip while adjusting the tension of the film strip.

[0092] When the material pulling mechanism 10 stops discharging material, the buffer wheel 21 transports the film strip to the material using station. Pulled by the film strip, the buffer wheel 21 slides from the second end B of the telescopic path of the elastic telescopic rod 26 to the first end A to release the film strip while adjusting the tension of the film strip.

[0093] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A film strip caching mechanism, characterized in that: The film strip caching mechanism comprises a mounting frame and n caching components, wherein: n buffer elements are installed on the mounting frame, each film strip sent out by the material pulling mechanism bypasses the corresponding buffer element, and each buffer element can independently approach or move away from the discharge end of the material pulling mechanism; Each of the buffering elements is used for buffering and adaptively tensioning the membrane strip passing around itself.

2. The film strip buffer mechanism according to claim 1, characterized in that: The cache member includes a guide assembly and a cache wheel, wherein: The guide assembly is mounted on the mounting frame, the cache wheel is slidably mounted on the sliding end of the guide assembly, the cache wheel can rotate along its own axis, and the film strips delivered by the pulling mechanism all bypass the cache wheel; The cache wheel can slide along the first end of the guide assembly toward the second end under the action of at least one of its own gravity, magnetic force or elastic force; The cache wheel can slide toward the first end along the second end of the guide assembly under the pull of the film strip that bypasses itself.

3. The film strip buffer mechanism according to claim 2, characterized in that: The guide assembly comprises a guide rail and a slider that are slidably matched, wherein: The guide rail is mounted on the mounting frame in a vertical direction or tilted downward, and the discharge end of the material pulling mechanism is close to the first end of the guide rail located at the top; The cache wheel is rotatably mounted on the slider of the guide assembly; When the pulling mechanism releases the film strip to the buffer wheel, the slider and the buffer wheel slide from the first end to the second end of the guide rail under the action of their own gravity to buffer the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the cache wheel transports the film strip to the material using station, and the slider and the cache wheel slide from the second end to the first end of the guide rail under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

4. The film strip buffer mechanism according to claim 2, characterized in that: The guide assembly comprises a first elastic member and a guide rail and a slide block that are slidably matched, wherein: The guide rail is mounted on the mounting frame in a vertical direction or tilted upward, and the material discharge end of the material pulling mechanism is close to the first end of the guide rail located at the bottom; The first end of the first elastic member is fixed to the first end of the guide rail, the second end of the first elastic member is fixed to the slider, and each of the cache wheels is rotatably mounted on a slider of the guide assembly; When the pulling mechanism releases the film strip to the buffer wheel, the slider and the buffer wheel slide from the first end to the second end of the guide rail under the elastic force of the first elastic member to buffer the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the cache wheel transports the film strip to the material using station, and the slider and the cache wheel slide from the second end to the first end of the guide rail under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

5. The film strip caching mechanism according to claim 2, characterized in that: The guide assembly comprises a first magnet, a second magnet, and a guide rail and a slider that are slidably matched, wherein: The guide rail is mounted on the mounting frame in a vertical direction or tilted upward, and the material discharge end of the material pulling mechanism is close to the first end of the guide rail located at the bottom; The first magnet is fixed to the first end of the guide rail, the second magnet is fixed to the slider, the first magnet and the second magnet have opposite sides that are of the same polarity and repel each other, and each of the cache wheels is rotatably mounted on a slider of the guide assembly; When the pulling mechanism releases the film strip to the cache wheel, the slider and the cache wheel slide from the first end to the second end of the guide rail under the magnetic force of the first magnet and the second magnet to cache the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the cache wheel transports the film strip to the material using station, and the slider and the cache wheel slide from the second end to the first end of the guide rail under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

6. The film strip caching mechanism according to claim 1, characterized in that: The cache member includes a swing member and a cache wheel, wherein: The rotating end of the swinging member is mounted on the mounting frame, the swinging member can rotate along its own rotating end, the buffer wheel can be rotatably mounted on the swinging end of the swinging member, and the film strips delivered by the pulling mechanism all bypass a corresponding one of the buffer wheels; The cache wheel can swing from the first end to the second end of the swing path of the swing member under the action of at least one of its own gravity, magnetic force or elastic force; The buffer wheel can swing from the second end to the first end of the swing path of the swing member under the pull of the film strip that bypasses itself.

7. The film strip buffer mechanism according to claim 6, characterized in that: The material discharge end of the material pulling mechanism is close to the first end of the swing path of the swing member; When the pulling mechanism releases the film strip to the buffer wheel, the buffer wheel swings from the first end to the second end of the swing path of the swing member under the action of its own gravity to buffer the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the buffer wheel transports the film strip to the material using station, and the buffer wheel swings from the second end to the first end of the swing path of the swinging member under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

8. The film strip buffer mechanism according to claim 6, characterized in that: The buffer member further comprises a second elastic member, a first end of the second elastic member is fixed to the swing end of the swing member, a second end of the second elastic member is fixed to the mounting frame, and a discharge end of the material pulling mechanism is close to the first end of the swing path of the swing member; When the pulling mechanism releases the film strip to the buffer wheel, the buffer wheel swings from the first end to the second end of the swing path of the swing member under the elastic force of the second elastic member to buffer the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the buffer wheel transports the film strip to the material using station, and the buffer wheel swings from the second end to the first end of the swing path of the swinging member under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

9. The film strip buffer mechanism according to claim 1, characterized in that: The cache member includes a third elastic member and a cache wheel, wherein: The third elastic member is elastically deformable, the third elastic member is mounted on the mounting frame, and the cache wheel is rotatably mounted on a deformed end of the third elastic member; When the buffer wheel conveys the film strip to the material-using station, the third elastic member is elastically deformed under the pulling of the film strip, and the buffer wheel follows the movement of the deformed end of the third elastic member to adjust the tension of the film strip while releasing the film strip; When the pulling mechanism releases the film strip to the cache wheel, the deformed end of the third elastic member moves to the initial position under the action of its own elastic force, and the cache wheel follows the movement of the deformed end of the third elastic member to adjust the tension of the film strip while caching the film strip.

10. The film strip buffer mechanism according to claim 1, characterized in that: The cache element comprises an elastic telescopic rod and a cache wheel, wherein: The fixed end of the elastic telescopic rod is mounted on the mounting frame, and the cache wheel is rotatably mounted on the telescopic end of one of the elastic telescopic rods; When the pulling mechanism releases the film strip to the cache wheel, the cache wheel slides from the first end to the second end of the telescopic path of the elastic telescopic rod under the elastic force of the elastic telescopic rod to cache the film strip and adjust the tension of the film strip at the same time; When the material pulling mechanism stops discharging material, the cache wheel transports the film strip to the material using station, and the cache wheel slides from the second end to the first end of the telescopic path of the elastic telescopic rod under the pull of the film strip to release the film strip while adjusting the tension of the film strip.

11. The film strip buffer mechanism according to claim 1, characterized in that: The mounting frame comprises a back plate and n / 2 mounting plates, wherein: n / 2 mounting plates are arranged side by side and at intervals on the back plate, and a step surface having a height difference with the first side surface is provided on the first side of each mounting plate; The i-th cache component is installed on the first side surface of the (i+1) / 2-th mounting plate, and the i+1-th cache component is installed on the step surface of the (i+1) / 2-th mounting plate, and i is not greater than n.

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