A welding strip storage disc changing mechanism

Abstract

The application discloses a kind of welding strip storage strip disc changing mechanisms, including storage strip frame, first guide mechanism, first linear driver, clamping cutting mechanism, second linear driver, mounting seat and winding disc;First guide mechanism includes the first guide wheel between storage strip frame and clamping cutting mechanism;Clamping cutting mechanism includes first mobile seat, clamping mechanism, cutting mechanism, first mobile seat can move along the direction of movement of welding strip under the action of first linear driver, clamping mechanism and cutting mechanism are all installed on the upper side of first mobile seat;Mounting seat is located at the side of clamping cutting mechanism away from storage strip frame;Welding strip prepared by welding strip preparation equipment successively passes through first guide wheel, clamping mechanism, cutting mechanism and is wound on winding disc;The application aims at providing a kind of welding strip storage strip disc changing mechanisms, with the advantages of improving operation safety and product quality stability, optimizing storage strip process to make equipment structure more compact.

Description

Technical Field

[0001] This invention relates to the field of welding strip manufacturing technology, and more specifically, to a welding strip storage and reel changing mechanism. Background Technology

[0002] In the ribbon preparation process, the ribbon is continuously output and wound onto a take-up reel. Existing take-up systems typically include a take-up frame, a take-up reel, and a ribbon storage rack located between the take-up frame and the output end of the ribbon preparation equipment. This ribbon storage rack structure is similar to existing wire storage racks, mainly consisting of a support frame, a fixed ribbon storage wheel, a driver, a lifting seat, and a lifting ribbon storage wheel. The fixed ribbon storage wheel is rotatably connected to the upper end of the support frame, and the lifting seat is located below the fixed ribbon storage wheel and slides in cooperation with the support frame. The driver drives its lifting, and the lifting ribbon storage wheel is rotatably mounted on the lifting seat. After the ribbon is output from the preparation equipment, it needs to wrap around the upper side of the fixed ribbon storage wheel and the lower side of the lifting ribbon storage wheel multiple times before finally reaching the take-up reel for winding. Under normal operating conditions, the take-up reel rotates to wind the ribbon. When the take-up reel reaches its full capacity, a reel replacement operation is required: The welding strip preparation equipment continuously outputs welding strip, and the lifting storage wheel of the storage rack moves downward under the action of the driver, increasing the distance between it and the fixed storage wheel to temporarily store the newly output welding strip; After the take-up reel stops, the operator must manually pinch the end of the welding strip to prevent it from being pulled back by the storage rack, and then cut the welding strip; After replacing with a new take-up reel, the operator needs to connect the end of the welding strip to the new take-up reel, start the winding, and at the same time, the storage rack releases the stored welding strip and resets.

[0003] However, the existing technology has significant drawbacks: on the one hand, the tape storage operation must be started before the tape is cut, resulting in an excessively long storage time. This requires the lifting tape storage wheel to have a large lifting stroke, which increases the overall height of the tape storage frame and is not conducive to the compactness of the equipment structure and space optimization. On the other hand, when cutting the tape, the operator needs to directly hold the tape with their hands. This is not only prone to causing local deformation or surface damage to the tape due to uneven force, but also poses a safety hazard of finger cuts due to the sharp edges of the tape, affecting operational safety and product quality stability. Summary of the Invention

[0004] The purpose of this invention is to provide a welding strip storage and reel changing mechanism, which has the advantages of improving operational safety and product quality stability, and optimizing the strip storage process to make the equipment structure more compact.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A welding strip storage and reel changing mechanism includes a storage rack, a first guide mechanism, a first linear driver, a clamping and cutting mechanism, a second linear driver, a mounting base, and a reel; The first guiding mechanism includes a first guide wheel located between the tape storage rack and the clamping and cutting mechanism; The clamping and cutting mechanism includes a first movable seat, a clamping mechanism, and a cutting mechanism. The first movable seat can move along the direction of the welding strip under the action of the first linear driver. The clamping mechanism and the cutting mechanism are both installed on the upper side of the first movable seat. The mounting base is located on the side of the clamping and cutting mechanism away from the tape storage rack. Under the action of the second linear drive, it can move along the direction of the welding tape movement. The take-up reel is detachably mounted on the upper side of the mounting base and is electrically driven. The welding strip output from the welding strip preparation equipment passes through the first guide wheel, clamping mechanism, and cutting mechanism before being wound onto the take-up reel. During reel changing, the first moving seat moves at the same speed as the welding strip, the clamping mechanism clamps the welding strip, and the first moving seat stops after moving to the end of the first linear drive. At the same time, the cutting mechanism cuts the welding strip, the storage rack stores the welding strip, and the reel stops winding the welding strip. After the operator replaces the reel, the mounting seat approaches the end of the welding strip under the drive of the second linear drive and connects the end of the welding strip to the new reel. The clamping mechanism releases the welding strip, the new reel winds up the welding strip, the storage rack releases the welding strip, and the first moving seat and the mounting seat return to their original positions.

[0006] Furthermore, the cutting mechanism includes a first rotating frame, a first rotator, and a laser cutting head. The lower end of the first rotating frame is rotatably connected to the first movable seat, and the other end of the first rotating frame extends outward from the first movable seat towards the take-up reel, where the aforementioned laser cutting head is installed, so that after cutting the welding strip, the end of the welding strip can reach a new take-up reel. The first rotator can drive the first rotating frame to rotate upward to prevent the laser cutting head from interfering with the new take-up reel.

[0007] Furthermore, the mounting base includes a second movable base, a rotating disk, and a second rotator. The rotating disk is rotatably connected to the second movable base. Two take-up reels are provided, which are detachably installed at both ends of the diameter of the rotating disk. The second rotator can drive the rotating disk to rotate so as to swap the positions of the two take-up reels.

[0008] Furthermore, the tape changing mechanism also includes a second guide mechanism, which is located between the second movable seat and the first movable seat. The second guide mechanism includes a support rod, a second guide wheel, and a first torsion spring. The support rod can rotate around its lower end, and the first torsion spring is installed at the lower end of the support rod to elastically maintain the posture of the support rod. The second guide wheel is rotatably connected to the upper end of the support rod. After passing under the first guide wheel and above the second guide wheel, the welding tape extends to the lower side of the take-up reel to improve the stability of the welding tape in the clamping mechanism and the cutting mechanism. The second movable seat can move closer to the first movable seat under the action of the second linear drive. The end of the second movable seat can push the support rod to rotate downward to the lower side of the second movable seat so that the end of the welding tape can be connected to the take-up reel.

[0009] Furthermore, the clamping mechanism includes a fixed base, an opening and closing mechanism, and clamping blocks. The fixed base is fixedly connected to the first movable base. The fixed base has through holes at the front and back, through which the welding strip passes. There are two clamping blocks, located on the upper and lower sides of the welding strip. The clamping blocks are slidably connected to the fixed base. The opening and closing mechanism drives the two clamping blocks to open and close to clamp or release the welding strip.

[0010] Furthermore, the opening and closing mechanism includes a screw and a first servo motor. The screw is rotatably connected to the fixed base. The two ends of the screw have opposite thread directions and are threadedly connected to two clamping blocks respectively. The first servo motor drives the screw to rotate, thereby causing the two clamping blocks to open and close.

[0011] Furthermore, a rubber sheet is provided on the clamping side of the clamping block.

[0012] Furthermore, the tape changing mechanism also includes a tensioning mechanism, which includes a second rotating frame, a tensioning wheel, a second torsion spring, a third guide wheel, and a second servo motor. The third guide wheel is disposed between the clamping mechanism and the first guide wheel and is rotatably connected to the upper side of the first movable seat. The third guide wheel supports the upper side of the welding tape. One end of the second rotating frame is rotatably connected to the end of the first movable seat near the first guide wheel. The tensioning wheel is located below the welding tape and is rotatably mounted on the other end of the second rotating frame. The second servo motor is connected to the rotating end of the second rotating frame through the second torsion spring. During the reel change, as the first moving seat moves with the welding strip, the clamping mechanism clamps the welding strip, the second servo motor drives the second rotating frame to rotate upward, the second torsion spring deforms, the tension wheel supports the welding strip upward, and the welding strip is tensioned. The third guide wheel prevents the welding strip from moving upward in the clamping mechanism. After the welding strip begins to be wound on the new take-up reel, the second servo motor drives the second rotating frame to rotate back.

[0013] Furthermore, an encoder is installed at the first guide wheel to obtain the welding strip speed.

[0014] Furthermore, the tape storage rack includes a support column, a fixed tape storage wheel, a lifting seat, a lifting device, and a lifting tape storage wheel. The fixed tape storage wheel is rotatably connected to the upper end of the support column. The lifting seat is located below the fixed tape storage wheel and is slidably connected to the support column. It is driven by the lifting device. The lifting tape storage wheel is rotatably connected to the lifting seat. The welding tape output by the welding tape preparation equipment passes through the upper side of the fixed tape storage wheel and the lower side of the lifting tape storage wheel multiple times and then extends towards the first guide wheel. The lifting device controls the tape storage speed by controlling the change in the distance between the fixed tape storage wheel and the lifting tape storage wheel.

[0015] Through the above improvements, the tape storage and winding mechanism proposed in this invention has the following beneficial effects: 1. Through the coordinated operation of the first moving seat moving at the same speed as the welding strip, the clamping mechanism clamping the welding strip, the cutting mechanism cutting the welding strip, and the storage rack storing the welding strip synchronously, the automation and precise control of the welding strip changing process are realized; 2. When changing reels, the tape storage rack stops moving from the first moving seat, that is, when the cutting mechanism cuts the welding tape, and the tape is stored. Compared with the traditional reel changing method (storage begins before cutting the welding tape), this effectively shortens the tape storage time and reduces the requirements for the lifting stroke of the tape storage rack, thereby helping to reduce the overall height of the tape storage rack.

[0016] 3. It eliminates the need for operators to manually handle and cut the welding strip, reducing the risk of deformation and damage to the welding strip and improving operational safety. 4. The second guiding mechanism significantly improves the transmission stability of the welding strip as it passes through the clamping and cutting mechanisms. Simultaneously, when it's necessary to connect the end of the welding strip to a new reel, the second moving seat can drive the support rod downwards, temporarily allowing the second guiding mechanism to move aside. This effectively avoids interference with the connection operation, simplifying the reel-changing process and improving its efficiency and success rate. After the connection is complete, the elasticity of the first torsion spring allows the support rod to automatically reset, restoring its guiding function and ensuring the continuity and reliability of the entire tape storage and reel-changing mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tape changing mechanism in an embodiment.

[0018] Figure 2 for Figure 1 Enlarged view of point A.

[0019] Figure 3 for Figure 1 Enlarged view of point B.

[0020] Figure 4 This is a side view of the tape changing mechanism in an embodiment.

[0021] Figure 5 This is a schematic diagram of the clamping mechanism in an embodiment.

[0022] Figure 6 This is a schematic diagram of a laser cutting head cutting the solder strip, as shown in the embodiment.

[0023] Figure 7 This is a schematic diagram of how the solder strip is attached to a new take-up reel. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] In traditional welding strip reeling and changing operations, the strip storage rack must begin storing the strip before it is cut, resulting in a long storage time. This places higher demands on the lifting stroke of the storage rollers, making it difficult to reduce the height of the storage rack. Furthermore, operators need to manually hold the end of the welding strip when cutting it, which can easily lead to deformation or damage, and poses a risk of cutting the operator's fingers.

[0026] Therefore, such as Figures 1 to 7 A welding strip storage and reel changing mechanism is proposed, including a storage rack 3, a first guide mechanism, a first linear driver 4, a clamping and cutting mechanism 5, a second linear driver 6, a mounting base 7, and a take-up reel 8. The first guiding mechanism includes a first guide wheel 9 located between the tape storage rack 3 and the clamping and cutting mechanism 5; The clamping and cutting mechanism 5 includes a first movable seat 51, a clamping mechanism 52, and a cutting mechanism 53. The first movable seat 51 can move along the direction of the welding strip under the action of the first linear driver 4. The clamping mechanism 52 and the cutting mechanism 53 are both mounted on the upper side of the first movable seat 51. The mounting base 7 is located on the side of the clamping and cutting mechanism 5 away from the tape storage rack 3. Under the action of the second linear drive 6, it can move along the direction of the welding tape movement. The take-up reel 8 is detachably mounted on the upper side of the mounting base 7 and is electrically driven. The welding strip output from the welding strip preparation equipment passes through the first guide wheel 9, the clamping mechanism 52, and the cutting mechanism 53 before being wound onto the take-up reel 8. When changing the reel, the first moving seat 51 moves at the same speed as the welding strip, the clamping mechanism 52 clamps the welding strip, and the first moving seat 51 moves to the end of the first linear driver 4 and stops. At the same time, the cutting mechanism 53 cuts the welding strip, the tape storage rack 3 stores the tape, and the take-up reel 8 stops winding the welding strip. After the operator replaces the take-up reel 8, the mounting seat 7 approaches the end of the welding strip under the drive of the second linear driver 6 and connects the end of the welding strip to the new take-up reel 8. The clamping mechanism 52 releases the welding strip, the new take-up reel 8 winds up the welding strip, the tape storage rack 3 releases the welding strip, and the first moving seat 51 and the mounting seat 7 return to their original positions.

[0027] Specifically, the components of the ribbon storage and reel changing mechanism in this embodiment are configured as follows: The tape storage rack 3 can adopt a traditional lifting tape storage structure, which stores welding tape through the relative movement of one or more pairs of tape storage wheels.

[0028] The first guiding mechanism is located between the tape storage rack 3 and the clamping and cutting mechanism 5, and its main function is to guide the path of the welding tape. The first guiding mechanism includes a first guide wheel 9, which can be a simple inert roller that rotates through a bearing to reduce friction of the welding tape as it passes through.

[0029] The clamping and cutting mechanism 5 is designed to clamp and cut the welding strip. This mechanism includes a first movable base 51, a clamping mechanism 52, and a cutting mechanism 53. The first movable base 51 is mounted on a first linear actuator 4 and is capable of linear movement along the direction of the welding strip's movement. The first linear actuator 4 can be a linear motor. Both the clamping mechanism 52 and the cutting mechanism 53 are mounted on the upper side of the first movable base 51. For example, the clamping mechanism 52 can consist of a pair of mechanical clamps, opened and closed by a pneumatic device to clamp the welding strip; this is not limited to this specific design. The cutting mechanism 53 can be a mechanical pair of scissors, cutting with a simple drive mechanism; this is not limited to this specific design.

[0030] Mounting base 7 is located on the side of the clamping and cutting mechanism 5 away from the tape storage rack 3, and its main function is to support the winding reel 8. Under the action of the second linear actuator 6, mounting base 7 can move linearly along the direction of the welding tape movement. The winding reel 8 is designed to be detachably mounted on the upper side of mounting base 7 and electrically driven by an independent motor to achieve the winding of the welding tape. For example, mounting base 7 can be a simple slider structure connected to the second linear actuator 6 via a guide rail, and the second linear actuator 6 can be a linear motor. The winding reel 8 can adopt a common chuck-type mounting method for easy replacement by the operator.

[0031] Throughout the system, the solder strip preparation equipment continuously outputs solder strip. This solder strip is first guided by the first guide wheel 9, then sequentially passes through the clamping mechanism 52 and the cutting mechanism 53, and is finally wound onto the take-up reel 8. This path ensures continuous transfer of the solder strip from the preparation end to the take-up end.

[0032] The specific procedure for changing reels is as follows: When the take-up reel 8 needs to be replaced, the first moving seat 51 follows the welding strip at the same speed as the welding strip. During this process, the clamping mechanism 52 is activated to clamp the welding strip. When the first moving seat 51 moves to the end of the first linear drive 4 and stops, the cutting mechanism 53 simultaneously cuts the welding strip. At the same time, the tape storage rack 3 begins to store newly output welding strip, and the take-up reel 8 stops winding, wherein the tape storage speed is equal to the output welding strip speed of the welding strip preparation equipment. After the operator replaces the new take-up reel 8, the mounting seat 7 moves under the drive of the second linear drive 6, bringing it close to the end of the welding strip. Subsequently, the operator connects the end of the welding strip to the new take-up reel 8. After the connection is completed, the clamping mechanism 52 releases the welding strip, the new take-up reel 8 begins to wind the welding strip, and the tape storage rack 3 stops storing tape and releases the previously stored welding strip. Finally, the first moving seat 51 and the mounting seat 7 return to their initial positions, ready for the next reel change or normal winding. For example, the ends of the welding strip can be glued or welded to the new take-up reel 8.

[0033] The welding strip storage and changing mechanism in this embodiment achieves automation and precise control of the welding strip changing process through the coordinated operation of the first moving seat 51 moving at the same speed as the welding strip, the clamping mechanism 52 clamping the welding strip, the cutting mechanism 53 cutting the welding strip, and the storage rack 3 storing the welding strip synchronously. During changing, the storage rack 3 stops moving from the first moving seat 51, that is, when the cutting mechanism 53 cuts the welding strip, and then begins storing the welding strip. Compared to the traditional changing method (where storage begins before cutting the welding strip), this effectively shortens the storage time and reduces the requirements for the lifting stroke of the storage rack 3, thereby helping to reduce the overall height of the storage rack 3. At the same time, it avoids the operator manually pinching and cutting the welding strip, reducing the risk of welding strip deformation and damage, and improving operational safety.

[0034] In one embodiment, this application further proposes a ribbon storage and reel changing mechanism, wherein the cutting mechanism 53 includes a first rotating frame 531, a first rotator 532, and a laser cutting head 533. Specifically, the lower end of the first rotating frame 531 is rotatably connected to a first movable seat 51, allowing the first rotating frame 531 to rotate around the connection point. The other end of the first rotating frame 531 extends towards the take-up reel 8 beyond the first movable seat 51, and the laser cutting head 533 is mounted on this extension. This structural design aims to ensure that after cutting the ribbon, the end of the ribbon can smoothly reach the new take-up reel 8, facilitating subsequent connection operations. The first rotator 532 is used to drive the first rotating frame 531 to rotate upwards to prevent interference between the laser cutting head 533 and the new take-up reel 8.

[0035] The cutting mechanism 53 is a key component responsible for the precise cutting of the welding strip. The first rotating frame 531, serving as the support structure for the laser cutting head 533, can be connected to the first moving seat 51 via various methods such as pins, shafts, and bearings, ensuring good stability and positioning accuracy during rotation. The extended design of the first rotating frame 531 allows the laser cutting head 533 to accurately align with the welding strip during operation and provides sufficient clearance when not in operation. The laser cutting head 533 is the core component for performing the cutting task. It typically uses a high-energy-density laser beam for non-contact cutting of the welding strip, offering advantages such as high cutting speed, high precision, smooth cut, and a small heat-affected zone. The first rotator 532 is the actuator that drives the first rotating frame 531 to rotate; it can be a stepper motor, servo motor, or pneumatic rotary cylinder, etc., and is not currently limited.

[0036] With the above configuration, after the welding strip is cut, the first rotator 532 can promptly drive the first rotating frame 531 to rotate upwards, causing the laser cutting head 533 mounted on the first rotating frame 531 to move away from the connection area between the welding strip end and the new take-up reel 8. This effectively avoids physical interference between the laser cutting head 533 and the new take-up reel 8 or the operator when connecting the welding strip end, providing a clear and unobstructed operating space for the connection between the welding strip end and the new take-up reel 8, thereby significantly improving the smoothness, safety, and efficiency of the reel changing operation.

[0037] In one embodiment, this application further proposes that the mounting base 7 includes a second movable base 71, a rotating disk 72, and a second rotator. The second movable base 71 is part of the mounting base 7, and its main function is to serve as a moving platform carrying the rotating disk 72 and the take-up reel 8. It works in conjunction with the first movable base 51, moving along the direction of the welding strip movement under the action of the second linear drive 6, so as to connect the end of the welding strip to the new take-up reel 8 during reel changing operations. The rotating disk 72 is rotatably connected to the second movable base 71 and is the core component for enabling rapid switching of the take-up reel 8. It is generally circular, and the rotatable connection of the rotating disk 72 can use bearings to ensure smooth rotation. Two take-up reels 8 are provided, detachably mounted at both ends of the diameter of the rotating disk 72. The mechanism includes two take-up reels 8, symmetrically mounted at both ends of the diameter of the rotating disk 72. This configuration allows the other take-up reel 8 to be in standby or ready for replacement while one take-up reel 8 is in operation. The retractable installation method of the take-up reel 8 can employ a quick-locking mechanism, a snap-fit ​​structure, or bolt fixing, allowing operators to quickly and easily replace it. The second rotator drives the rotating disk 72 to rotate, thereby swapping the positions of the two take-up reels 8. The second rotator is the actuator that drives the rotating disk 72. It can be a servo motor, stepper motor, or other type of rotary drive device, connected to the rotating disk 72 via gears, belts, or direct drive. The second rotator can precisely control the rotation angle and speed of the rotating disk 72, thereby achieving accurate swapping of the positions of the two take-up reels 8.

[0038] By incorporating a second movable seat 71, a rotating disk 72, and a second rotator into the mounting base 7, and configuring two interchangeable take-up reels 8, this application effectively solves the problem of low reel-changing efficiency in traditional single take-up reel 8. When one take-up reel 8 is full of welding strip, the second rotator can drive the rotating disk 72 to rotate 180 degrees, quickly switching the other empty take-up reel 8 to the working position for connecting the end of the welding strip. This effectively reduces the time for changing the take-up reel 8, improves the reel-changing efficiency, and further shortens the tape storage time.

[0039] In one embodiment, this application further proposes that the above-mentioned tape transfer mechanism also includes a second guide mechanism, which is disposed between the second movable seat 71 and the first movable seat 51. The second guide mechanism specifically includes a support rod 10, a second guide wheel 11, and a first torsion spring. The support rod 10 is rotatable around its lower end, and the first torsion spring is installed at the lower end of the support rod 10, its function being to provide elastic force to maintain the preset posture of the support rod 10. The second guide wheel 11 is rotatably connected to the upper end of the support rod 10. During the transmission process, the welding tape passes successively under the first guide wheel 9 and above the second guide wheel 11, and then extends to the lower side of the take-up reel 8. This path design aims to improve the stability of the welding tape in the clamping mechanism 52 and the cutting mechanism 53. During the reel changing operation, when it is necessary to connect the end of the welding strip to the new take-up reel 8, the second moving seat 71 can move closer to the first moving seat 51 under the action of the second linear drive 6, and its end can push the support rod 10 to rotate downward to below the second moving seat 71, thereby providing operating space for the connection of the end of the welding strip to the take-up reel 8.

[0040] Specifically, the introduction of the second guide mechanism provides additional support and guidance for the welding strip in critical transport areas. The support rod 10, as the main structure of the second guide mechanism, has a rotatable design that allows for flexible switching between normal operation and tray changing. For example, the support rod 10 can be connected to the base via a hinge structure or to a fixed bracket via a bearing, ensuring smooth rotation of its lower end. A first torsion spring, for example, can be wound around the rotation axis of the support rod 10, with one end fixed to the support rod 10 and the other end fixed to the base, to provide a restoring torque, allowing the support rod 10 to maintain a preset upright or tilted posture when not subjected to external forces, ensuring that the second guide wheel 11 can effectively guide the welding strip. The second guide wheel 11 is rotatably connected to the upper end of the support rod 10, for example, by means of a bearing, ensuring that it can rotate freely with the movement of the welding strip. The path design of the welding strip passing under the first guide wheel 9 and above the second guide wheel 11 effectively suppresses vibration, offset, or warping that may occur when the welding strip moves at high speed or is subjected to uneven force, significantly improving the transmission stability of the welding strip in the clamping mechanism 52 and the cutting mechanism 53. During reel changing, the second moving seat 71, driven by the second linear actuator 6, can move precisely and push the support rod 10 downward. For example, the end of the second moving seat 71 can be designed as a slope structure. When it approaches the support rod 10, it pushes the support rod 10 downward through mechanical contact, allowing the second moving seat 71 to move above the support rod 10, thereby avoiding interference from the second guide wheel 11 to the welding strip end connection operation.

[0041] Through the above-described configuration, the second guiding mechanism significantly improves the transmission stability of the welding strip as it passes through the clamping mechanism 52 and the cutting mechanism 53. Simultaneously, when it is necessary to connect the end of the welding strip to a new reel 8, the second movable seat 71 can drive the support rod 10 to rotate downwards, allowing the second guiding mechanism to temporarily avoid interference with the connection operation. This simplifies the reel-changing process and improves the efficiency and success rate of reel-changing. After the connection is completed, the elastic action of the first torsion spring allows the support rod 10 to automatically reset, restoring its guiding function and ensuring the continuity and reliability of the entire tape storage and reel-changing mechanism.

[0042] In one embodiment, this application further proposes a clamping mechanism 52 including a fixed base 521, an opening and closing mechanism, and clamping blocks 522. The fixed base 521 is fixedly connected to a first movable base 51 and has through holes extending from its front to back, through which the welding strip passes. Two clamping blocks 522 are provided, respectively disposed on the upper and lower sides of the welding strip, and are slidably connected to the fixed base 521. The opening and closing mechanism drives the two clamping blocks 522 to perform opening and closing movements to clamp or release the welding strip.

[0043] Specifically, the fixed base 521 serves as the main structural component of the clamping mechanism 52, providing a stable mounting foundation for the clamping blocks 522 and the opening / closing mechanism. The clamping blocks 522 are the components that directly contact the welding strip and apply clamping force. In this embodiment, two clamping blocks 522 are provided, located on the upper and lower sides of the welding strip, respectively. The clamping blocks 522 and the fixed base 521 are slidably connected; for example, the clamping blocks 522 can reciprocate linearly along a preset guide track inside the fixed base 521 to clamp or release the welding strip. The opening / closing mechanism is the core component driving the opening and closing motion of the two clamping blocks 522. Its function is to precisely control the distance between the clamping blocks 522 according to control commands, thereby achieving reliable clamping or complete release of the welding strip. The opening / closing mechanism can be implemented using various driving methods. For example, a linkage mechanism driven by a cylinder or hydraulic cylinder can be used to synchronously open and close the clamping blocks 522; a gear and rack mechanism or cam mechanism driven by a motor can also be used to achieve precise position control of the clamping blocks 522. This is not limited to any particular method.

[0044] In one embodiment, this application further proposes that the opening and closing mechanism includes a screw 523 and a first servo motor 524. The screw 523 is rotatably connected to the fixed base 521, and the threads at both ends of the screw 523 are in opposite directions and are threadedly connected to two clamping blocks 522 respectively. The first servo motor 524 drives the screw 523 to rotate, thereby causing the two clamping blocks 522 to open and close.

[0045] Specifically, the screw 523 is a mechanical component that converts torque into linear motion through rotational motion. In this application, its main function is to convert the rotational motion of the first servo motor 524 into the linear opening and closing motion of the clamping blocks 522. The screw 523 typically has external threads, and the design of opposite thread directions at both ends is key to achieving synchronous relative motion of the two clamping blocks 522. One end of the screw 523 can use a right-hand thread, and the other end can use a left-hand thread. The two clamping blocks 522 are respectively machined with threaded holes that match the corresponding thread direction of the screw 523, so that the clamping blocks 522 can directly act as nuts to cooperate with the screw 523. The screw 523 is supported on the fixed base 521 by bearings, bushings, etc., ensuring that it can rotate freely inside the fixed base 521 while maintaining a relatively fixed axial position.

[0046] The first servo motor 524 is a motor capable of precisely controlling speed, position, and torque. In this application, it serves as a power source, driving the screw 523 to rotate, thereby achieving precise control over the opening and closing motion of the clamping block 522. The first servo motor 524 is typically used in conjunction with an encoder to provide closed-loop control, ensuring the accuracy of its rotation angle and speed. By controlling the rotation direction and angle of the first servo motor 524, the rotation of the screw 523 can be precisely controlled, thereby controlling the opening and closing distance and clamping force of the clamping block 522. The output shaft of the first servo motor 524 can be directly connected to one end of the screw 523, or connected to the screw 523 through a transmission mechanism such as gears or belts to achieve drive.

[0047] Through the above configuration, utilizing the precise control capability of the first servo motor 524 and the ingenious design of opposite thread directions at both ends of the screw 523, the rotational motion of the first servo motor 524 can be efficiently and synchronously converted into the linear opening and closing motion of the two clamping blocks 522. This enables the clamping mechanism 52 to achieve precise and stable clamping and release of the welding strip, effectively avoiding damage to the welding strip caused by excessive or uneven clamping force, while improving the reliability and automation of the clamping action.

[0048] In one embodiment, this application further proposes that a rubber sheet 525 is provided on the clamping side of the clamping block 522.

[0049] With the above settings, when the clamping mechanism 52 clamps the welding strip, the clamping side of the clamping block 522 is provided with a rubber sheet 525, which can provide a good buffering effect and prevent the hard clamping block 522 from directly contacting the welding strip. This effectively prevents the surface of the welding strip from being scratched, indented or other mechanical damage during the clamping process, and is especially suitable for welding strips with high surface quality requirements.

[0050] In one embodiment, this application proposes a tensioning mechanism comprising a second rotating frame 12, a tensioning wheel 13, a second torsion spring, a third guide wheel 14, and a second servo motor 15. One end of the second rotating frame 12 is rotatably connected to the end of the first movable seat 51 near the first guide wheel 9, serving as a support arm for the tensioning wheel 13. The tensioning wheel 13 is located below the welding strip and rotatably mounted at the other end of the second rotating frame 12; it is a freely rotatable wheel-shaped component used to lift the welding strip upwards to apply tension. The second torsion spring is an elastic element connecting the second servo motor 15 to the rotating end of the second rotating frame 12. It can elastically deform when the second servo motor 15 drives the second rotating frame 12 to rotate upwards, storing energy and releasing it when needed to assist or buffer the movement of the second rotating frame 12. The third guide wheel 14 is disposed between the clamping mechanism 52 and the first guide wheel 9 and rotatably connected to the upper side of the first movable seat 51. Its main function is to support the upper side of the welding strip, providing additional support and guidance, and restricting the vertical movement of the welding strip within the clamping mechanism 52 area. The second servo motor 15 is a motor capable of precisely controlling angle, speed, and position. It is connected to and drives the second rotating frame 12 to rotate via the second torsion spring, thereby achieving dynamic adjustment of the welding strip tension.

[0051] Specifically, during reel changing, as the first moving seat 51 moves with the welding strip, the clamping mechanism 52 clamps the welding strip, and the second servo motor 15 drives the second rotating frame 12 to rotate upward. At this time, the second torsion spring deforms, and the tension wheel 13 supports the welding strip upward, thus keeping the welding strip taut. Simultaneously, the third guide wheel 14 restricts the welding strip from above, effectively preventing the welding strip from shifting upward in the clamping mechanism 52 due to tension changes or external disturbances. Through the above settings, during the critical stages of the first moving seat 51 moving with the welding strip, the clamping mechanism 52 clamping the welding strip, and the cutting mechanism 53 cutting the welding strip, the welding strip can always maintain a stable tension and precise position, greatly improving the accuracy of cutting, ensuring the smooth connection of the welding strip end to the new take-up reel 8, and effectively avoiding problems such as welding strip slack, shaking, or accidental upward movement, thereby significantly improving the overall working efficiency and reliability of the welding strip storage and reel changing mechanism. Once the welding strip begins to be wound on the new take-up reel 8, the second servo motor 15 drives the second rotating frame 12 to rotate, and the tensioning mechanism releases the tension on the welding strip, allowing the welding strip to return to normal transmission. The entire process is seamless and ensures the continuity of production.

[0052] In one embodiment, this application further proposes that an encoder be installed at the first guide wheel 9 to obtain the welding strip speed.

[0053] Obtaining the welding strip speed involves measuring the rotation of the first guide wheel 9 using an encoder, thereby calculating the linear speed of the welding strip in real time. Since the welding strip contacts the wheel surface at the first guide wheel 9 and rotates with it, there is a fixed proportional relationship between the rotational speed of the first guide wheel 9 and the linear speed of the welding strip (depending on the diameter of the guide wheel). By combining the pulse signal output by the encoder with the circumference of the guide wheel, the current running speed of the welding strip can be accurately calculated.

[0054] By installing an encoder at the first guide wheel 9, this application can obtain the actual running speed of the welding strip in real time and accurately. This speed information is crucial for the precise control of the entire welding strip storage and changing mechanism. For example, during the changing process, the first moving seat 51 needs to move at the same speed as the welding strip. By obtaining the welding strip speed in real time, the controller can accurately adjust the movement speed of the first linear drive 4 to ensure that the first moving seat 51 and the welding strip remain synchronized, thereby ensuring that the clamping mechanism 52 can stably clamp the welding strip and avoid slippage or stretching of the welding strip due to speed mismatch. In addition, accurate welding strip speed information also helps the cutting mechanism 53 to make accurate cuts at preset positions, improving cutting accuracy and efficiency. At the same time, the winding speed of the winding reel 8 can also be dynamically adjusted according to the actual speed of the welding strip to maintain appropriate tension of the welding strip, preventing it from being too loose or too tight, thereby improving winding quality and the stability of the mechanism operation.

[0055] In one embodiment, this application proposes a tape storage rack 3, which includes a support column 31, a fixed tape storage wheel 32, a lifting seat 33, a lifting device 34, and a lifting tape storage wheel 35. The tape storage rack 3 is a device for temporarily storing excess tape when the tape preparation equipment continuously outputs tape and the winding reel 8 pauses winding.

[0056] The support column 31 is the skeleton structure of the tape storage rack 3, typically a vertically mounted frame structure, used to support the fixed tape storage wheel 32 and provide a sliding guide rail for the lifting seat 33. The fixed tape storage wheel 32 is rotatably connected to the upper end of the support column 31, serving as the first guide point for the welding tape entering the tape storage rack 3. The lifting seat 33 is located below the fixed tape storage wheel 32 and is slidably connected to the support column 31. It is a platform or support that can move up and down along the support column 31 to support the lifting tape storage wheel 35. The design of the lifting seat 33 should ensure its smooth sliding on the support column 31, typically achieved through a guide rail and slider mechanism to reduce friction and improve motion accuracy. The lifting device 34 is used to drive the lifting seat 33 to move up and down along the support column 31. The lifting device 34 can be an electric screw mechanism, pneumatic cylinder, hydraulic cylinder, or gear and rack mechanism, etc., and is not limited here. The lifting tape storage wheel 35 is rotatably connected to the lifting seat 33, cooperating with the fixed tape storage wheel 32 to form the tape storage path. When the lifting seat 33 moves, the lifting storage roller 35 moves up and down accordingly, changing the winding length of the welding strip in the storage rack 3. The welding strip output from the welding strip preparation equipment passes multiple times over the upper side of the fixed storage roller 32 and the lower side of the lifting storage roller 35 before extending towards the first guide roller 9. This path describes the specific winding method of the welding strip in the storage rack 3. After the welding strip is output from the welding strip preparation equipment, it first passes over the upper side of the fixed storage roller 32, then moves downwards around the lower side of the lifting storage roller 35, and then upwards around the upper side of the fixed storage roller 32, repeating this process to form multiple windings, thus creating a variable-length storage ring between the fixed storage roller 32 and the lifting storage roller 35. Finally, the welding strip is led out from the storage rack 3, extends towards the first guide roller 9, and enters the subsequent clamping mechanism 52. This multi-winding design significantly increases the storage capacity to cope with longer reel-changing operations. The lifting device 34 controls the storage speed by controlling the change in distance between the fixed storage roller 32 and the lifting storage roller 35. This is the core working principle of the tape storage rack 3. When tape needs to be stored, the lifting device 34 drives the lifting seat 33 to move downward, increasing the distance between the fixed tape storage wheel 32 and the lifting tape storage wheel 35, thereby increasing the winding length of the welding tape in the tape storage rack 3 and realizing the storage of the welding tape. When the welding tape needs to be released, the lifting device 34 drives the lifting seat 33 to move upward, reducing the distance between the two wheels, so that the welding tape stored in the tape storage rack 3 is released. By precisely controlling the moving speed and position of the lifting seat 33, the amount of tape stored and the release speed of the welding tape can be dynamically adjusted to match the output speed of the welding tape preparation equipment and the winding speed of the take-up reel 8.

[0057] Through the design of the aforementioned tape storage rack 3, during the tape changing process, when the take-up reel 8 pauses winding while the tape preparation equipment continues to output tape, the lifting device 34 can drive the lifting seat 33 to move downwards, increasing the distance between the fixed tape storage wheel 32 and the lifting tape storage wheel 35. This effectively stores excess tape, preventing tape accumulation or excessive tension. When the new take-up reel 8 begins winding the tape, the lifting device 34 can drive the lifting seat 33 to move upwards, smoothly releasing the stored tape and ensuring that the tape enters the take-up reel 8 at a controlled speed and stable tension. This ability to dynamically adjust the tape storage amount and release speed significantly improves the smoothness and efficiency of the tape changing process, effectively avoiding problems such as tape breakage, deformation, or poor winding caused by unstable tension during tape changing, thereby ensuring the quality of the tape and the continuous operation of the production line.

[0058] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A welding strip storage and reel changing mechanism, characterized in that, It includes a tape storage rack, a first guide mechanism, a first linear drive, a clamping and cutting mechanism, a second linear drive, a mounting base, and a reel; The first guiding mechanism includes a first guide wheel located between the tape storage rack and the clamping and cutting mechanism; The clamping and cutting mechanism includes a first movable seat, a clamping mechanism, and a cutting mechanism. The first movable seat can move along the direction of the welding strip under the action of a first linear driver. The clamping mechanism and the cutting mechanism are both installed on the upper side of the first movable seat. The mounting base is located on the side of the clamping and cutting mechanism away from the tape storage rack. Under the action of the second linear drive, it can move along the direction of the welding tape movement. The take-up reel is detachably mounted on the upper side of the mounting base and is electrically driven. The welding strip output from the welding strip preparation equipment passes through the first guide wheel, clamping mechanism, and cutting mechanism before being wound onto the take-up reel. During reel changing, the first moving seat moves at the same speed as the welding strip, the clamping mechanism clamps the welding strip, and the first moving seat stops after moving to the end of the first linear drive. At the same time, the cutting mechanism cuts the welding strip, the storage rack stores the welding strip, and the reel stops winding the welding strip. After the operator replaces the reel, the mounting seat approaches the end of the welding strip under the drive of the second linear drive and connects the end of the welding strip to the new reel. The clamping mechanism releases the welding strip, the new reel winds up the welding strip, the storage rack releases the welding strip, and the first moving seat and the mounting seat return to their original positions.

2. The welding strip storage and reel changing mechanism according to claim 1, characterized in that, The cutting mechanism includes a first rotating frame, a first rotator, and a laser cutting head. The lower end of the first rotating frame is rotatably connected to a first movable seat. The other end of the first rotating frame extends outward from the first movable seat towards the take-up reel and is fitted with the laser cutting head so that after cutting the welding strip, the end of the welding strip can reach a new take-up reel. The first rotator can drive the first rotating frame to rotate upward to prevent the laser cutting head from interfering with the new take-up reel.

3. The welding strip storage and reel changing mechanism according to claim 2, characterized in that, The mounting base includes a second movable base, a rotating disk, and a second rotator. The rotating disk is rotatably connected to the second movable base. Two take-up reels are provided, which are detachably installed at both ends of the diameter of the rotating disk. The second rotator can drive the rotating disk to rotate so as to swap the positions of the two take-up reels.

4. The welding strip storage and reel changing mechanism according to claim 3, characterized in that, The tape changing mechanism also includes a second guide mechanism, which is disposed between the second movable seat and the first movable seat. The second guide mechanism includes a support rod, a second guide wheel, and a first torsion spring. The support rod can rotate around its lower end. The first torsion spring is installed at the lower end of the support rod to elastically maintain the posture of the support rod. The second guide wheel is rotatably connected to the upper end of the support rod. The welding tape extends to the lower side of the take-up reel after passing under the lower side of the first guide wheel and the upper side of the second guide wheel, so as to improve the stability of the welding tape in the clamping mechanism and the cutting mechanism. The second movable seat can move closer to the first movable seat under the action of the second linear drive. The end of the second movable seat can push the support rod to rotate downward to the lower side of the second movable seat so that the end of the welding tape can be connected to the take-up reel.

5. The welding strip storage and reel changing mechanism according to claim 1, characterized in that, The clamping mechanism includes a fixed base, an opening and closing mechanism, and clamping blocks. The fixed base is fixedly connected to a first movable base. The fixed base has through holes at the front and back, through which the welding strip passes. There are two clamping blocks, located on the upper and lower sides of the welding strip. The clamping blocks are slidably connected to the fixed base. The opening and closing mechanism drives the two clamping blocks to open and close to clamp or release the welding strip.

6. The welding strip storage and reel changing mechanism according to claim 5, characterized in that, The opening and closing mechanism includes a screw and a first servo motor. The screw is rotatably connected to a fixed base. The two ends of the screw have opposite thread directions and are threadedly connected to two clamping blocks respectively. The first servo motor drives the screw to rotate, thereby causing the two clamping blocks to open and close.

7. The welding strip storage and reel changing mechanism according to claim 5, characterized in that, A rubber sheet is provided on the clamping side of the clamping block.

8. The welding strip storage and reel changing mechanism according to claim 1, characterized in that, The tape changing mechanism further includes a tensioning mechanism, which includes a second rotating frame, a tensioning wheel, a second torsion spring, a third guide wheel, and a second servo motor. The third guide wheel is disposed between the clamping mechanism and the first guide wheel and is rotatably connected to the upper side of the first movable seat. The third guide wheel supports the upper side of the welding tape. One end of the second rotating frame is rotatably connected to the end of the first movable seat near the first guide wheel. The tensioning wheel is located below the welding tape and is rotatably mounted on the other end of the second rotating frame. The second servo motor is connected to the rotating end of the second rotating frame through the second torsion spring. During the change of tray, as the first moving seat moves with the welding strip, the clamping mechanism clamps the welding strip, the second servo motor drives the second rotating frame to rotate upward, the second torsion spring deforms, the tension wheel supports the welding strip upward, so that the welding strip is tensioned, and the third guide wheel prevents the welding strip from moving upward in the clamping mechanism. Once the welding strip begins to be wound on the new take-up reel, the second servo motor drives the second rotating frame to rotate.

9. A welding strip storage and reel changing mechanism according to claim 1, characterized in that, An encoder is installed at the first guide wheel to obtain the welding strip speed.

10. A welding strip storage and reel changing mechanism according to claim 1, characterized in that, The tape storage rack includes a support column, a fixed tape storage wheel, a lifting seat, a lifting device, and a lifting tape storage wheel. The fixed tape storage wheel is rotatably connected to the upper end of the support column. The lifting seat is located below the fixed tape storage wheel and is slidably connected to the support column. It is driven by the lifting device. The lifting tape storage wheel is rotatably connected to the lifting seat. The welding tape output by the welding tape preparation equipment passes through the upper side of the fixed tape storage wheel and the lower side of the lifting tape storage wheel multiple times and then extends towards the first guide wheel. The lifting device controls the tape storage speed by controlling the change in the distance between the fixed tape storage wheel and the lifting tape storage wheel.

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