Solder strip drawing device

Abstract

The application relates to a welding strip traction device, which comprises a traction support, a driving assembly arranged on the traction support, a transmission assembly with one end connected with the output end of the driving assembly, and an abutting assembly arranged on the traction support, wherein the abutting assembly is provided with a clamping surface configured to cooperate with the other end of the transmission assembly to clamp the welding strip; wherein the driving assembly is configured to adjust the angle of the transmission assembly so that the end of the transmission assembly continuously applies force to the welding strip during the traction of the welding strip. By adjusting the angle of the transmission assembly, the application can generate a reverse resistance during the traction of the welding strip, so that the normal pressure (one component force) for pressing the welding strip is increased, thereby converting into a friction force to prevent the welding strip from slipping, and when the traction force is increased, the transmission assembly can apply a greater normal pressure to the welding strip, thereby increasing the maximum friction force between the two, thereby forming a positive feedback enhancement mechanism, which is beneficial to realizing the self-locking effect of pulling tighter during the traction of the welding strip.

Description

Technical Field

[0001] This application relates to the field of solar cell technology, and in particular to a ribbon traction device. Background Technology

[0002] In the photovoltaic module manufacturing industry, the ribbon traction mechanism of the string welding machine is a key functional module, and its stability directly affects production efficiency and module quality. Currently, the industry generally adopts an outward-opening ribbon traction gripper design. That is, the gripper holds the ribbon through an outward-opening structure, while the ribbon cutter is fixedly installed on the equipment frame. During the traction process, the cutter remains open, and the cutting operation is only performed after the ribbon has been pulled into position.

[0003] However, the welding strip traction grippers currently used have at least the following problems: the outward-curving grippers have limited clamping force on the welding strip, and when the traction resistance increases or the surface of the welding strip is smooth, the welding strip is prone to slippage, resulting in insufficient clamping reliability. Utility Model Content

[0004] Therefore, it is necessary to provide a welding strip traction device to address the problem that the clamping force of the outward-curving jaws on the welding strip is limited, resulting in insufficient clamping reliability in related technologies.

[0005] This application provides a welding strip traction device, the welding strip traction device comprising:

[0006] Traction bracket;

[0007] The drive assembly is located on the traction bracket;

[0008] A transmission assembly is provided on the traction bracket, and one end of the transmission assembly is connected to the output end of the drive assembly;

[0009] An abutment component is disposed on the traction bracket, the abutment component having a clamping surface configured to engage with the other end of the transmission component to clamp the welding strip;

[0010] The drive component is configured to adjust the angle of the transmission component so that the end of the transmission component continuously applies force to the welding strip during the traction of the welding strip.

[0011] In one embodiment, during the traction of the welding strip, the transmission assembly has a first component force continuously applied in the direction of the abutment assembly and a second component force continuously applied in the axial direction of the welding strip, the direction of the second component force being the same as the traction direction of the welding strip.

[0012] In one embodiment, the transmission assembly includes a pressure rod, one end of which is rotatably connected to the output end of the drive assembly, and the other end of which is provided with a clamping groove that engages with the clamping surface of the abutment assembly to clamp the welding strip.

[0013] In one embodiment, the output end of the drive component faces away from the traction direction, and the axial direction of the output shaft of the drive component is parallel to the traction direction;

[0014] The angle between the axis of the pressure rod and the axis of the output end is an acute angle, and the angle is between 30° and 60°.

[0015] In one embodiment, the transmission assembly further includes a rotating shaft, one end of which passes through the pressure rod and the axis of the rotating shaft is perpendicular to the axis of the pressure rod; the other end of the rotating shaft is disposed on the traction bracket.

[0016] In one embodiment, the pressure bar is an elastic bar; the transmission assembly further includes a limiting protrusion disposed on one side of the elastic bar to limit the deflection angle of the elastic bar during the pulling of the welding strip.

[0017] In one embodiment, the drive assembly includes one of a drive motor and a power cylinder;

[0018] And / or, the clamping surface is an arc surface;

[0019] And / or, the end of the transmission assembly facing away from the drive assembly is provided with an anti-slip pad;

[0020] And / or, the end of the transmission component facing away from the drive component is provided with anti-slip texture;

[0021] And / or, the clamping surface is constructed with anti-slip texture.

[0022] In one embodiment, the welding strip traction device further includes a cutting mechanism adapted to switch between a traction state and a cutting state. In the traction state, the cutting mechanism is a first distance away from the traction bracket and clamps the welding strip to move with the traction bracket. In the cutting state, the cutting mechanism is a second distance away from the traction bracket to cut the welding strip. The second distance is greater than the first distance.

[0023] In one embodiment, the cutting mechanism includes:

[0024] Cutter holder;

[0025] The first cutting blade is disposed on the cutting blade holder;

[0026] The second cutter is mounted on the cutter holder via a moving mechanism, which is configured to drive the second cutter closer to or further away from the first cutter.

[0027] In one embodiment, the moving mechanism includes a first servo mechanism and a slide rail. The first servo mechanism is disposed on the cutter bracket, and the second cutter is connected to the output end of the first servo mechanism. The slide rail is disposed on the cutter bracket, and the second cutter is slidably disposed on the slide rail.

[0028] In one embodiment, the welding strip traction device further includes a guide rail, and the cutter bracket is slidably mounted on the guide rail via a second servo mechanism to adjust the distance between the cutter bracket and the traction bracket;

[0029] The second servo mechanism is configured to perform at least the following actions:

[0030] Drive the cutter bracket to move closer to the traction bracket, and under the drive of the first servo mechanism, drive the second cutter to move closer to the first cutter to clamp the welding strip, and move with the traction bracket until the traction bracket moves to the target position;

[0031] After the traction bracket moves to the target position, the cutter bracket is driven to move away from the traction bracket and stops after moving a preset distance. The first servo mechanism is then controlled to drive the second cutter to continuously approach the first cutter in order to cut the welding strip.

[0032] The aforementioned welding strip traction device adjusts the angle of the transmission component through the drive component, so that the end of the transmission component can engage with the clamping surface of the abutment component to clamp the welding strip. By designing the angle of the transmission component, reverse resistance can be generated during the tensioning of the welding strip, thereby increasing the positive pressure (one component of the force) applied to tighten the welding strip. This is converted into frictional force to prevent the welding strip from slipping. When the traction force increases, the positive pressure that the transmission component can apply to the welding strip is greater, increasing the maximum frictional force between the two, thus forming a positive feedback enhancement mechanism. This is beneficial for achieving a self-locking effect that tightens as the welding strip is pulled during the traction process, and for enhancing the clamping reliability of the welding strip traction device. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a welding strip traction device according to some embodiments of this application.

[0034] Figure 2 This is a schematic diagram of the force analysis of the contact point between the transmission component and the welding strip according to some embodiments of this application.

[0035] Figure 3This is a schematic diagram of another welding strip traction device provided according to some embodiments of this application.

[0036] Figure 4 This is a schematic diagram of the structure of a cutting mechanism provided according to some embodiments of this application.

[0037] Figure 5 This is a schematic diagram of the structure of a welding strip traction device (including a cutting mechanism) provided according to some embodiments of this application.

[0038] Icon labels:

[0039] 100. Traction bracket;

[0040] 200. Driver components;

[0041] 300. Transmission assembly; 310. Pressure rod;

[0042] 400. Abutment component;

[0043] 500, pivot;

[0044] 600, Limiting protrusion;

[0045] 700. Cutting mechanism; 710. Cutting bracket; 720. First cutter; 730. Second cutter; 740. Moving mechanism; 741. First servo mechanism; 742. Slide rail; 750. Second servo mechanism;

[0046] 10. Welding strip;

[0047] Traction direction X. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] As mentioned in the background section, the clamping force of the outward-curving gripper on the welding strip is limited. When the traction resistance increases or the surface of the welding strip is smooth, the welding strip is prone to slippage. In addition to the above-mentioned defects that lead to insufficient clamping reliability, the following defects may also be present: for example, after the welding strip falls off, it needs to be manually re-threaded, which leads to a decrease in equipment uptime and an increase in labor costs, posing a risk of production interruption; another example is that in the prior art, the fixed cutter only participates in the final cutting stage and cannot provide auxiliary clamping force during the traction process. The welding strip relies on a single gripper mechanism to prevent it from falling off, which is unreliable.

[0055] Based on the aforementioned problems, this application provides a welding strip traction device. The angle of the transmission component is adjusted by a drive component so that the end of the transmission component can engage with the clamping surface of the abutment component to clamp the welding strip. Furthermore, by designing the angle of the transmission component, a reverse resistance is generated during the welding strip's tension, increasing the applied positive pressure (one component of which) on the welding strip. This pressure is converted into frictional force to prevent the welding strip from slipping. As the traction force increases, the positive pressure exerted by the transmission component on the welding strip increases, further increasing the maximum frictional force between them. This forms a positive feedback enhancement mechanism, which facilitates a self-locking effect where the welding strip becomes tighter as it is pulled during traction, and enhances the clamping reliability of the welding strip traction device.

[0056] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a welding strip traction device according to some embodiments of this application. Figure 2 This is a schematic diagram illustrating the force analysis of the contact point between the transmission assembly and the welding strip according to some embodiments of this application. One embodiment of this application provides a welding strip traction device, which may include a traction bracket 100, a drive assembly 200, a transmission assembly 300, and an abutment assembly 400.

[0057] A drive assembly 200 is disposed on a traction bracket 100; a transmission assembly 300 is disposed on a traction bracket 100, one end of the transmission assembly 300 being connected to the output end of the drive assembly 200; an abutment assembly 400 is disposed on a traction bracket 100, the abutment assembly 400 having a clamping surface configured to cooperate with the other end of the transmission assembly 300 to clamp the welding strip 10; wherein, the drive assembly 200 is configured to adjust the angle of the transmission assembly 300 so that during the traction of the welding strip 10, the end of the transmission assembly 300 continuously applies force to the welding strip 10.

[0058] Understandably, the traction bracket 100 serves as the mounting reference for the entire device, used to mount the drive assembly 200, transmission assembly 300, and abutment assembly 400. In this example, a slider can be provided at the bottom of the traction bracket 100 to couple with the device's linear guide rail 742, ensuring the accuracy of its motion trajectory.

[0059] The drive assembly 200 can use an electrode or a cylinder and can be fixed to the side of the traction bracket 100 via a flange. The drive assembly 200 is mainly used to adjust the angle of the transmission assembly 300. One end of the transmission assembly 300 is connected to the output end of the drive assembly 200. The transmission assembly 300 can be rotatably mounted on the traction bracket 100 to rotate under the drive of the drive assembly 200, so that the other end of the transmission assembly 300 abuts against the welding strip 10.

[0060] To facilitate clamping of the welding strip 10 at the other end of the transmission assembly 300, the traction bracket 100 is also provided with an abutment assembly 400. The abutment assembly 400 can be considered as a long strip or rectangular abutment block, which can be fixed to the traction bracket 100 by bolts or the like, or it can be integrally formed with the traction bracket 100. V-grooves or U-grooves can be constructed on the surface of the abutment block to serve as clamping surfaces, thereby cooperating with the end of the transmission assembly 300 to achieve initial clamping of the welding strip 10.

[0061] It should be noted that the end of the transmission component 300 that abuts against the welding strip 10 in this embodiment may include one clamping end face or two clamping end faces. If there is one clamping end face, the transmission component 300 can be designed as a transmission rod; if there are two clamping end faces, the transmission component 300 can be designed as a forked transmission rod, with each of the two forked ends serving as a clamping end face. However, regardless of the number of clamping end faces, the direction in which the clamping end face abuts against the welding strip 10 is not perpendicular to the axis of the welding strip 10, and one component of the force applied to the welding strip 10 by the clamping end face is consistent with the traction direction of the welding strip 10. This arrangement enables the welding strip 10 to achieve a self-locking effect of becoming tighter as it is pulled during the traction process.

[0062] More specifically, when the drive assembly 200 adjusts the transmission assembly 300 until its end abuts against the surface of the welding strip 10 and then stops, the transmission assembly 300, in conjunction with the abutment assembly 400, applies a first clamping force to the welding strip 10. This first clamping force can drive the welding strip 10 to move. Due to the angle design of the transmission assembly 300, its end can apply a clamping force to the welding strip 10, as well as a force in the same direction as the traction. This design can generate reverse resistance during the tensioning process of the welding strip 10, that is, it will increase the normal force applied to clamp the welding strip 10, thereby converting it into frictional force to prevent the welding strip 10 from slipping. In other words, the greater the traction force, the greater the normal force of the transmission assembly 300 on the welding strip 10, and the greater the maximum frictional force, thereby achieving a self-locking effect that tightens as it is pulled.

[0063] According to the welding strip traction device provided in the embodiments of this application, the angle of the transmission component 300 is adjusted by the drive component 200 so that the end of the transmission component 300 can cooperate with the clamping surface of the abutment component 400 to clamp the welding strip 10. By designing the angle of the transmission component 300, reverse resistance can be generated during the process of the welding strip 10 being pulled, so that the positive pressure (one component of the force) applied to the welding strip 10 is increased, thereby converting it into frictional force to prevent the welding strip 10 from slipping. When the traction force increases, the positive pressure of the transmission component 300 on the welding strip 10 is greater, increasing the maximum frictional force between the two, thereby forming a positive feedback enhancement mechanism. This is beneficial to achieving a self-locking effect of tightening the welding strip 10 as it is pulled during the traction process, and enhancing the clamping reliability of the welding strip traction device.

[0064] Below, we will combine the appendix Figure 1 -Appendix Figure 5 The specific structure of the welding strip traction device provided in the embodiments of this application will be described in detail.

[0065] like Figure 2 As shown, in some embodiments, during the traction of the welding strip 10, the transmission assembly 300 has a first component force continuously applied to the direction of the abutment assembly 400, and a second component force continuously applied to the axial direction of the welding strip 10, the direction of the second component force being the same as the traction direction of the welding strip 10.

[0066] It is understandable that the normal direction of the contact point between the end of the transmission assembly 300 and the welding strip 10 is consistent with the extension direction of the transmission assembly 300. When the transmission assembly 300 applies a force F perpendicular to the normal of the contact point under the action of the drive assembly 200, this force is decomposed into two components. The first component F1 is directed toward the abutment assembly 400, that is, perpendicular to the clamping surface of the abutment assembly 400. This first component F1 is mainly used to press the welding strip 10 to generate friction. The second component F2 is parallel to the axis of the welding strip 10 and is in the same direction as the traction. This component will directly participate in the traction of the welding strip 10.

[0067] For example, during the initial clamping stage, the drive component 200 pushes the transmission component 300 to rotate to 45° with the traction direction and abut against the welding strip 10, so as to cooperate with the abutment component 400 to complete the pre-clamping of the welding strip 10. During the traction process, when the traction resistance on the welding strip 10 increases, the transmission component 300 undergoes a slight deflection due to the force, thereby further autonomously increasing the positive pressure applied to the welding strip 10, i.e., the first component force F1, and further enhancing the maximum friction between the two, thus achieving self-locking. This embodiment solves the problem of the disconnect between the clamping force and the traction force of traditional grippers from a mechanical perspective through the synergistic action of the dual component forces of the transmission component 300.

[0068] like Figure 1 As shown, in some embodiments, the transmission assembly 300 includes a pressure rod 310, one end of which is rotatably connected to the output end of the drive assembly 200, and the other end of the pressure rod 310 is provided with a clamping groove, which cooperates with the clamping surface of the abutment assembly 400 to clamp the welding strip 10.

[0069] Specifically, one end of the pressure rod 310 is hinged to the output end of the drive assembly 200, and the other end has a clamping head. The clamping head is constructed with a clamping groove adapted to the size of the welding strip 10. This clamping groove can be a V-groove or a U-groove, so as to clamp the welding strip 10 by the cooperation of the clamping groove with the clamping surface of the abutment assembly 400. It should be noted that the clamping head can be set at the end of the pressure rod 310 by means of threads, snaps, etc. The end face of the clamping head is constructed with a clamping groove. This setting facilitates the replacement of the clamping head after wear, without having to replace the entire pressure rod 310, which not only improves the replacement efficiency but also helps to reduce costs.

[0070] In this embodiment, the pressure rod 310 can be hinged only to the output end of the drive assembly 200, with the other end abutting against the welding strip 10. Alternatively, the middle part of the pressure rod 310 can be connected to the traction bracket 100 via a pivot 500. This arrangement can prevent or mitigate damage to the drive assembly 200 when the pressure rod 310 deflects due to the reaction force applied by the welding strip 10 during traction.

[0071] When the drive assembly 200 pushes the pressure rod 310 to rotate, the clamping groove and the clamping surface form a concentric clamping structure, and the welding strip 10 is confined to the center position of the bottom of the groove. The two inclined surfaces of the V-shaped clamping groove form line contact with the surface of the welding strip 10, and the contact pressure is concentrated, which can improve the clamping stability.

[0072] It should be noted that before the welding strip 10 enters the transmission assembly 300 and the abutment assembly 400, that is, before the welding strip 10 is clamped, the output end of the drive assembly 200 moves in the opposite direction to the traction direction, thereby causing the end of the pressure rod 310 (near the abutment assembly 400) to move away from the abutment assembly 400. In other words, the pressure rod 310 is in an open state so that the welding strip 10 can extend between the transmission assembly 300 and the abutment assembly 400. After the welding strip 10 enters between the transmission assembly 300 and the abutment assembly 400, the output end of the drive assembly 200 moves in the direction of traction, so as to cause the end of the pressure rod 310 (near the abutment assembly 400) to move closer to the abutment assembly 400 until it abuts against the welding strip 10, thus achieving initial clamping of the welding strip 10.

[0073] like Figure 1 As shown, in some embodiments, the output end of the drive assembly 200 faces away from the traction direction, and the axial direction of the output shaft of the drive assembly 200 is parallel to the traction direction; the angle between the axis of the pressure rod 310 and the axis of the output end is an acute angle, and the angle is between 30° and 60°.

[0074] Specifically, an angle sensor can be installed on the traction bracket 100 to monitor the deflection angle of the pressure rod 310 in real time. In this example, the angle between the axis of the pressure rod 310 and the traction direction can be 30°, 40°, 45°, 50°, 60°, etc. For example, the angle is 45°. This setting allows the pressure rod 310 to deflect slightly due to force during the traction of the welding strip 10, thereby further increasing the positive pressure applied to the welding strip 10, i.e., the first component force F1, and further enhancing the maximum friction between the two, thus achieving self-locking.

[0075] like Figure 1 As shown, in some embodiments, the transmission assembly 300 further includes a rotating shaft 500, one end of which passes through the pressure rod 310 and the axis of the rotating shaft 500 is perpendicular to the axis of the pressure rod 310; the other end of the rotating shaft 500 is disposed on the traction bracket 100.

[0076] Specifically, since the output end of the aforementioned drive assembly 200 faces away from the traction direction, that is, the axis of the output end is parallel to the traction direction, when the middle part of the pressure rod 310 is mounted on the traction bracket 100 via the rotating shaft 500, to overcome the vertical deviation when the drive assembly 200 drives the end of the pressure rod 310 to rotate, an oblong hole can be opened in the middle of the pressure rod 310, and the rotating shaft 500 passes through the oblong hole. Of course, the axial positioning of the rotating shaft 500 can be achieved through a shoulder and an elastic retaining ring, but there are no specific limitations.

[0077] The rotating shaft 500 serves as the rotation center of the pressure rod 310, which can convert the linear motion of the drive assembly 200 into the arc motion of the pressure rod 310, thereby improving the stability of the pressure rod 310 during rotation and avoiding or mitigating the damage to the drive assembly 200 caused by the reverse force applied to the pressure rod 310 by the welding strip 10 during the pulling process.

[0078] like Figure 3 As shown, Figure 3 This is a schematic diagram of another welding strip traction device provided according to some embodiments of this application. In some embodiments, the pressure rod 310 is an elastic rod; the transmission assembly 300 also includes a limiting protrusion 600, which is disposed on one side of the elastic rod to limit the deflection angle of the elastic rod during the pulling of the welding strip 10.

[0079] Specifically, in this embodiment, the elastic rod refers to a compression rod 310 with a certain deformation capacity. For example, the elastic rod can be made of an alloy with a certain deflection. One end of the elastic rod is hinged to the drive assembly 200, and the other end is provided with a clamping head. The middle part is connected to the traction bracket 100 through a rotating shaft 500, and the limiting protrusion 600 is located near the clamping head.

[0080] During the traction process of the welding strip 10, the directional force applied to the elastic rod clamping head by the welding strip 10 causes the elastic rod to deform, thereby further causing the clamping head of the elastic rod to move closer to the abutment component 400, thus applying a greater positive pressure to the welding strip 10 to further prevent the welding strip 10 from slipping off between the elastic rod and the abutment component 400. To prevent damage to the welding strip 10 caused by continuous deformation of the elastic rod during traction, a limiting protrusion 600 is provided on the traction bracket 100 near the clamping head. This limiting protrusion 600 can limit the deflection angle of the elastic rod to prevent excessive deformation of the elastic rod.

[0081] In some embodiments, the drive assembly 200 includes either a drive motor or a power cylinder. Specifically, the drive mechanism can be a servo motor with a reducer, or it can be a compact cylinder. The specific configuration can be determined according to different production needs and is not limited herein.

[0082] In one example, the clamping surface is curved. Specifically, the clamping surface can be designed as a V-groove or a U-groove to clamp the welding strip 10 in conjunction with the clamping groove at the end of the pressure rod 310. To increase the friction between the welding strip 10 and the end of the pressure rod 310 and the clamping surface of the abutting assembly 400, an anti-slip pad is provided at the end of the transmission assembly 300 away from the drive assembly 200, an anti-slip texture is constructed at the end of the transmission assembly 300 away from the drive assembly 200, and an anti-slip texture is constructed on the clamping surface. Specifically, the coefficient of friction is increased by constructing anti-slip textures at the end of the transmission assembly 300 (pressure rod 310) and on the clamping surface. Of course, the coefficient of friction can also be increased by attaching an anti-slip pad to the end of the transmission assembly 300 and on the clamping surface.

[0083] This embodiment improves the coefficient of friction between the welding strip 10 and the clamping surface and the transmission component 300 (clamping groove) through multi-dimensional anti-slip design, so as to further solve the problem of slippage of the smooth welding strip 10.

[0084] like Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the structure of a cutting mechanism provided according to some embodiments of this application. Figure 5 This is a schematic diagram of a welding strip traction device (including a cutting mechanism) provided according to some embodiments of this application. In some embodiments, the welding strip traction device further includes a cutting mechanism 700, which is adapted to switch between a traction state and a cutting state. In the traction state, the cutting mechanism 700 is at a first distance from the traction bracket 100 and clamps the welding strip 10 to move with the traction bracket 100; in the cutting state, the cutting mechanism 700 is at a second distance from the traction bracket 100 to cut the welding strip 10; wherein the second distance is greater than the first distance.

[0085] Understandably, after the welding strip 10 is clamped by the transmission component 300 and the abutment component 400, the cutting mechanism 700 can approach the traction bracket 100 (at a first distance) and clamp the welding strip 10, moving along with the traction bracket 100. That is, in this pulled state, the cutting mechanism 700 acts to clamp the welding strip 10 without cutting it (i.e., it engages the welding strip 10 but does not cut it). This arrangement allows the welding strip 10 to be clamped by two mechanisms simultaneously, achieving a double anti-drop design. When the welding strip 10 reaches the target position, the cutting mechanism 700 will return to the initial position and perform a cutting operation on the welding strip 10, realizing the traction and cutting of the welding strip 10 of the preset length from the welding strip 10 reel.

[0086] like Figure 4As shown, in some embodiments, the cutting mechanism 700 may include a cutting support 710, a first cutting blade 720, and a second cutting blade 730. The first cutting blade 720 is disposed on the cutting support 710; the second cutting blade 730 is disposed on the cutting support 710 via a moving mechanism 740, which is configured to drive the second cutting blade 730 toward or away from the first cutting blade 720.

[0087] Specifically, the first cutter 720, which can be called a fixed cutter, is fixedly mounted on the cutter holder 710, while the second cutter 730, as a movable cutter, can move closer to or further away from the first cutter 720 under the drive of the moving mechanism 740, thereby achieving the clamping or cutting of the welding strip 10. Specifically, a program can be set in the moving mechanism 740 to receive instructions to drive the second cutter 730 to move a certain distance to achieve the clamping or cutting action of the welding strip 10.

[0088] like Figure 4 As shown, in some embodiments, the moving mechanism 740 includes a first servo mechanism 741 and a slide rail 742. The first servo mechanism 741 is disposed on the cutter support 710, and the second cutter 730 is connected to the output end of the first servo mechanism 741. The slide rail 742 is disposed on the cutter support 710, and the second cutter 730 is slidably disposed on the slide rail 742.

[0089] Specifically, the first servo mechanism 741 can be fixed on the cutter bracket 710, and the second cutter 730 is connected to the output end of the first servo mechanism 741, enabling the second cutter 730 to move closer to or further away from the first cutter 720 via the first servo mechanism 741. By setting slide rails 742 on the cutter bracket 710, for example, two slide rails 742 along the travel direction of the second cutter 730, and setting two sliders on the second cutter 730 that are adapted to and fitted with the slide rails 742, the movement of the second cutter 730 along the extension direction of the slide rails 742 can be realized, thereby providing guidance for the movement of the second cutter 730, ensuring the stability of the second cutter 730 during its movement, and also improving the accuracy of the docking between the second cutter 730 and the first cutter 720.

[0090] like Figure 4 and Figure 5As shown, in some embodiments, the welding strip traction device further includes a guide rail, and the cutter bracket 710 is slidably disposed on the guide rail via a second servo mechanism 750 to adjust the distance between the cutter bracket 710 and the traction bracket 100; the second servo mechanism 750 is configured to perform at least the following actions: drive the cutter bracket 710 to move toward the traction bracket 100, and under the drive of the first servo mechanism 741, drive the second cutter 730 to move toward the first cutter 720 to clamp the welding strip 10, and move with the traction bracket 100 until the traction bracket 100 moves to the target position; after the traction bracket 100 moves to the target position, drive the cutter bracket 710 to move away from the traction bracket 100, and stop after moving a preset distance, and control the first servo mechanism 741 to drive the second cutter 730 to continue to move toward the first cutter 720 to cut the welding strip 10.

[0091] It is understandable that the position of the cutting mechanism 700 can be changed through the cooperation of the guide rail and the second servo mechanism 750. That is, the cutting mechanism 700 can be switched between the pulling state and the cutting state, so that the cutting mechanism 700 can achieve double clamping of the welding strip 10 with the transmission component 300 and the abutment component 400 in the pulling state, further avoiding or reducing the situation where the welding strip 10 is easy to slip off during the traction process.

[0092] More specifically, after the transmission assembly 300 and the abutment assembly 400 clamp the welding strip 10 at the welding strip 10 reel, this position can be called the initial position. At this time, the cutting mechanism 700 is also located at or near the initial position. The second servo mechanism 750 adjusts the cutting mechanism 700 to a position a first distance away from the traction bracket 100, and controls the first servo mechanism 741 to drive the second cutter 730 to approach the first cutter 720 to clamp the welding strip 10. Subsequently, the traction bracket 100 and the cutting bracket 710 are controlled to move together along the traction direction until the traction bracket 100 reaches the target position (corresponding to the length of a section of welding strip 10).

[0093] Then, the first servo mechanism 741 is controlled to drive the second cutter 730 away from the first cutter 720, releasing the solder strip 10; next, the second servo mechanism 750 is controlled to drive the cutter mechanism 700 to move to the initial position. When it moves to the position, the first servo mechanism 741 is controlled to drive the second cutter 730 to approach the first cutter 720 until the solder strip 10 is cut off, thereby obtaining a solder strip 10 of the target length.

[0094] Of course, a clamping mechanism can be added at the initial position to clamp the welding strip 10 before the cutting mechanism 700 cuts the welding strip 10, thereby preventing the end of the welding strip 10 from being out of control after the cutting mechanism 700 cuts the welding strip 10.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A welding strip traction device, characterized in that, The welding strip traction device includes: Traction bracket (100); A drive assembly (200) is provided on the traction bracket (100). A transmission assembly (300) is disposed on the traction bracket (100), and one end of the transmission assembly (300) is connected to the output end of the drive assembly (200); An abutment assembly (400) is provided on the traction bracket (100), the abutment assembly (400) having a clamping surface configured to engage with the other end of the transmission assembly (300) to clamp the welding strip (10). The drive assembly (200) is configured to adjust the angle of the transmission assembly (300) so that the end of the transmission assembly (300) continuously applies force to the welding strip (10) during the traction of the welding strip (10).

2. The welding strip traction device according to claim 1, characterized in that, During the traction of the welding strip (10), the transmission assembly (300) has a first component force continuously applied to the direction of the abutment assembly (400) and a second component force continuously applied to the axial direction of the welding strip (10), the direction of the second component force being the same as the traction direction of the welding strip (10).

3. The welding strip traction device according to claim 2, characterized in that, The transmission assembly (300) includes a pressure rod (310), one end of which is rotatably connected to the output end of the drive assembly (200), and the other end of which is provided with a clamping groove, which cooperates with the clamping surface of the abutment assembly (400) to clamp the welding strip (10).

4. The welding strip traction device according to claim 3, characterized in that, The output end of the drive assembly (200) faces away from the traction direction, and the axial direction of the output shaft of the drive assembly (200) is parallel to the traction direction; The angle between the axis of the pressure rod (310) and the axis of the output end is an acute angle, which is between 30° and 60°.

5. The welding strip traction device according to claim 3, characterized in that, The transmission assembly (300) further includes a rotating shaft (500), one end of which passes through the pressure rod (310), and the axis of the rotating shaft (500) is perpendicular to the axis of the pressure rod (310); the other end of the rotating shaft (500) is located on the traction bracket (100).

6. The welding strip traction device according to any one of claims 3-5, characterized in that, The pressure bar (310) is an elastic bar; the transmission assembly (300) also includes a limiting protrusion (600), which is located on one side of the elastic bar to limit the deflection angle of the elastic bar during the pulling of the welding strip (10).

7. The welding strip traction device according to any one of claims 1-5, characterized in that, The drive assembly (200) includes one of a drive motor and a power cylinder; And / or, the clamping surface is an arc surface; And / or, the end of the transmission assembly (300) facing away from the drive assembly (200) is provided with an anti-slip pad; And / or, the end of the transmission assembly (300) opposite to the drive assembly (200) is provided with anti-slip texture; And / or, the clamping surface is constructed with anti-slip texture.

8. The welding strip traction device according to any one of claims 1-5, characterized in that, The welding strip traction device further includes a cutting mechanism (700) adapted to switch between a traction state and a cutting state. In the traction state, the cutting mechanism (700) is a first distance away from the traction bracket (100) and clamps the welding strip (10) to move with the traction bracket (100). In the cutting state, the cutting mechanism (700) is a second distance away from the traction bracket (100) to cut the welding strip (10). The second distance is greater than the first distance.

9. The welding strip traction device according to claim 8, characterized in that, The cutting mechanism (700) includes: Cutter holder (710); The first cutting blade (720) is provided on the cutting blade support (710); The second cutter (730) is mounted on the cutter holder (710) via a moving mechanism (740), which is configured to drive the second cutter (730) to move closer to or further away from the first cutter (720).

10. The welding strip traction device according to claim 9, characterized in that, The moving mechanism (740) includes a first servo mechanism (741) and a slide rail (742). The first servo mechanism (741) is disposed on the cutter bracket (710), and the second cutter (730) is connected to the output end of the first servo mechanism (741). The slide rail (742) is disposed on the cutter bracket (710), and the second cutter (730) is slidably disposed on the slide rail (742).

11. The welding strip traction device according to claim 10, characterized in that, The welding strip traction device also includes a guide rail, and the cutter bracket (710) is slidably mounted on the guide rail via a second servo mechanism (750) to adjust the distance between the cutter bracket (710) and the traction bracket (100); The second servo mechanism (750) is configured to perform at least the following actions: Drive the cutter bracket (710) to move closer to the traction bracket (100), and under the drive of the first servo mechanism (741), drive the second cutter (730) to move closer to the first cutter (720) to clamp the welding strip (10), and move with the traction bracket (100) until the traction bracket (100) moves to the target position; After the traction bracket (100) moves to the target position, the cutter bracket (710) is driven to move away from the traction bracket (100) and stops after moving a preset distance. The first servo mechanism (741) is controlled to drive the second cutter (730) to continuously approach the first cutter (720) to cut the welding strip (10).

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