A synchronized self-locking catch mechanism for a web

Abstract

This invention belongs to the technical field of material roll stop mechanism in electromechanical science, and relates to a material roll synchronous self-locking stop mechanism. An electric slide is provided on the upper surface of the worktable, and a traction device for pulling the material strip is slidably connected to the electric slide. A mounting base is installed at the end of the upper surface of the worktable away from the traction device. A first mounting plate is fixedly connected to one side of the top of the mounting base, and a rotating roller is rotatably connected to the top of the first mounting plate. The stop mechanism utilizes its related structure to stop the material roll the instant the material strip becomes loose, thereby ensuring that the material roll does not continue to rotate due to inertia after the traction device stops pulling the material strip. This maintains a taut state that meets cutting standards after the traction device stops pulling. The lifting roller, based on different changes in the state of the material strip, quickly triggers the stop band to stop the rotating roller and releases the stop. Its overall structure is scientifically designed, its principle is simple, its operation is flexible, and it is environmentally friendly.

Description

Technical Field

[0001] This invention belongs to the technical field of material coil stopping mechanism in the field of electromechanical science, and relates to a material coil synchronous self-locking stopping mechanism. Background Technology

[0002] Automatic tape and roll cutting equipment is a key material supply and processing device in electronic manufacturing, hardware stamping, label die-cutting, plastic molding, and automated assembly lines, enabling intermittent traction, fixed-length conveying, and precise cutting. The equipment typically consists of a tape unloading mechanism, a traction module, a cutting mechanism, and a control system. The traction module intermittently pulls the tape at a set interval, and once the tape is in position, the cutter performs the cutting action. The feeding accuracy, tape tension, and braking synchronization directly affect the product dimensional accuracy and the overall operational stability of the production line.

[0003] In existing technologies, conventional strip cutting equipment commonly suffers from a lack of synchronization between the pulling action and the braking of the strip coil. When the pulling module completes a single pulling stroke and stops traction, the strip coil, due to its own rotational inertia, cannot brake instantaneously and continues to rotate freely in its original direction, continuously releasing excess strip and causing the strip to slack. This slack strip can lead to uneven force on the cutter during the shearing process, resulting in quality problems such as incomplete cuts, skewed cuts, and burrs. It can also cause strip accumulation and jamming.

[0004] To address the issue of tape slack caused by inertial feeding, existing technologies have proposed several braking or self-locking solutions. For example, patent document CN116986089A discloses a tape unwinding device with a self-locking function, which achieves self-locking through the cooperation of a swing arm, insert, latch, and gear disk: when the tape is not subjected to external force, the swing arm, under the action of a torsion spring, pushes the latch to insert into the tooth groove of the gear disk, thereby achieving self-locking and fixing of the tape roll and preventing the tape roll from rotating. This solution provides a mechanical self-locking approach.

[0005] In addition, for the field of photovoltaic welding strip processing, patent document CN106180259A discloses a braking and pushing device for a photovoltaic welding strip feeding tray. This device sets a gear and rack mechanism on one side of the feeding tray so that after the drive stops, the feeding tray, which is still rotating due to inertia, can be pushed a distance away to avoid the material accumulating at the front end of the tool. It directly proposes a solution to the problem of inertial feeding.

[0006] However, the aforementioned existing technologies still have shortcomings. Patent document CN116986089A discloses a tape unwinding device with a self-locking function. The disclosed self-locking mechanism relies on the engagement of specific components (a latch and a gear disc), and its structure is relatively complex. In continuous feeding scenarios requiring rapid and frequent start-stop operations, the response speed and reliability of engagement and disengagement face challenges. While the "braking and stopping device" can alleviate tape accumulation, it does not fundamentally achieve instantaneous and synchronous stopping of the tape roll, and the "stopping" action itself may introduce new positional errors, affecting feeding accuracy.

[0007] Therefore, the existing technology still lacks a material roll stopping mechanism that can be highly synchronized with the traction action, respond quickly, has a compact structure, and is reliable, which cannot meet the requirements of high precision, high stability, and high consistency in automated production. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and to design a material roll synchronous self-locking stop mechanism to solve the problems of existing material strip cutting equipment lacking a synchronous self-locking stop mechanism, which cannot achieve synchronous stopping when the material strip stops traction. This results in the material roll rotating due to inertia, causing excessive material conveying, unstable feeding length, and cutter shearing failure, thus failing to meet the requirements of high precision, high stability, and high consistency in automated production.

[0009] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem relates to a material roll synchronous self-locking stop mechanism. The main structure includes: a worktable, a traction device, a mounting base, a stop device, an adjusting roller, a guide roller, a threaded sleeve, a fixing plate, and a cutting device. An electric slide is provided on the upper surface of the worktable, and a traction device for traction of the material roll is slidably connected to the electric slide. A mounting base is installed at the end of the upper surface of the worktable away from the traction device. A first mounting plate is fixedly connected to one side of the top of the mounting base, and a rotating roller is rotatably connected to the top of the first mounting plate. A material roll is sleeved and fixedly fixed on the rotating roller, and a material roll is disposed inside the material roll. A second connecting plate is fixedly connected to one side of the mounting base located on the first mounting plate, and a first connecting plate is fixedly installed on the second connecting plate. A guide roller for guiding the material strip is rotatably connected to the top of the connecting plate. A cutting device for cutting the material strip is provided between the guide roller and the traction device. The stopping device includes a support arm rotatably connected to the first mounting plate. An L-shaped connecting rod is fixedly connected to the end of the support arm away from the mounting base. A lifting roller is rotatably connected to the end of the L-shaped connecting rod away from the support arm, and the lower surface of the lifting roller is in contact with the material strip. An annular limiting groove is opened at the end of the rotating roller near the support arm, and a stopping strip is in contact with the annular limiting groove. The two ends of the stopping strip are respectively connected to the first mounting plate and the support arm. A first spring is fixedly connected to the bottom of the support arm, and a rotating wheel is fixedly connected to the bottom end of the first spring. A rotating rod is fixedly connected to the center of the rotating wheel. The rotating rod passes through the first mounting plate and is rotatably connected to the first mounting plate.

[0010] When the material roll in the material roll reel of the present invention is used to the minimum, the tangent point between the lifting roller and the material strip is located below the tangent line connecting the tangent point between the material roll and the material strip in the material roll reel to the tangent point between the bottom of the guide roller and the tangent point of the material strip.

[0011] The first mounting plate of the present invention has a support frame fixedly connected to its side wall. A support rod is fixedly connected to one end of the support frame near the lifting roller, and an adjusting roller is rotatably connected to the support rod. The highest point of the top of the adjusting roller is higher than the maximum lifting height of the highest point of the top of the lifting roller.

[0012] The first spring of the present invention has its end away from the support arm fixedly connected to the eccentric part of the side wall of the rotating wheel. The end of the rotating rod away from the rotating wheel is sleeved and fixedly fitted with a worm gear. The first mounting plate is fixedly connected to a motor on the side opposite to the rotating wheel, and the output shaft of the motor is fixedly connected to a worm gear. The bottom of the worm gear is meshed with the worm gear. Limit blocks are rotatably connected to both ends of the worm gear, and the end of the limit block away from the worm gear is fixedly connected to the first mounting plate.

[0013] The stop band described in this invention is configured as a V-shaped band or a wedge-shaped band, and the shape of the inner wall of the annular limiting groove is adapted to the shape of the stop band. The maximum separation distance of the stop band in the annular limiting groove is less than the groove depth of the annular limiting groove.

[0014] The present invention has a magnetic strip embedded in the stop strip and a magnetic ring embedded in the end of the rotating roller corresponding to the annular limiting groove. The magnetic ring and the magnetic strip have the same magnetic poles.

[0015] The lower end of the stop strip of the present invention is rotatably connected to the first mounting plate, and the upper end of the stop strip is rotatably connected to the side of the support arm near the first mounting plate. The stop strip is made of natural rubber, neoprene rubber or polyurethane rubber and has metal wires inside.

[0016] The mounting base of the present invention is fixedly connected to a support plate, and a C-shaped frame is fixedly connected to the top of the support plate. An extrusion block is provided below the C-shaped frame and is located inside the C-shaped frame. Two guide rods that pass through and connect to the bottom of the C-shaped frame are fixedly connected to the bottom of the extrusion block. A second spring for pushing the extrusion block upward to extrude the winding tape is sleeved on the outer side of each of the two guide rods.

[0017] The C-shaped frame of the present invention has threaded holes at the bottom corresponding to two guide rods, and threaded sleeves are threadedly connected in both threaded holes. The bottom ends of the two guide rods pass through the center of the corresponding threaded sleeves and are slidably connected to the threaded sleeves. The top end of the threaded sleeve is rotatably connected to a limiting collar, and the top end of the limiting collar is sleeved and fixed to a second spring. The end of the second spring away from the limiting collar is fixedly connected to the top of the inner wall of the extrusion block.

[0018] The present invention provides a fixing plate between the C-shaped frame and the cutting device, and the fixing plate is fixedly connected to the support plate. A first cylinder is fixedly connected to the side wall of the support plate, and a lower pressure plate is fixedly connected to the output shaft of the first cylinder, and the lower pressure plate is located directly above the fixing plate.

[0019] Compared with the prior art, the present invention has the following advantages: First, by setting a stop device on the first mounting plate, the stop device and related structures stop the material reel the moment the material strip becomes loose, thereby ensuring that the material reel does not continue to rotate due to inertia after the traction device stops pulling the material strip. This ensures that the material reel remains taut and meets the cutting standards even after the traction device stops pulling. The lifting roller makes corresponding actions according to the different state changes of the material strip, thereby quickly triggering the stop belt to stop the rotating roller and releasing the stop effect. Secondly, by fixing a support frame to the side wall of the first mounting plate and fixing a support rod to the support frame, the adjusting roller, which is rotatably connected to the support rod, is placed at a position higher than the maximum rising height of the top of the lifting roller. On the one hand, this solves the problem of unstable opening states of the lifting roller and the stop belt caused by the decrease in the conveying height of the material roll as it gradually thins, ensuring that the height of the material roll remains constant when it is conveyed outward. When the material roll is rotating to feed material, the stop belt can completely detach from the rotating roller, releasing the stopping effect on the rotating roller and ensuring the normal rotation and feeding of the rotating roller. On the other hand, by raising the height of the material roll when it passes through the lifting roller using the adjusting roller, the opening force of the lifting roller can be increased, so that the lifting roller can quickly trigger the stop state during the change of the material roll state. Third, a rotating threaded sleeve is used, which is threaded and connected to the threaded hole at the bottom of the C-shaped frame. The threaded sleeve rotates continuously upward and pushes the limiting sleeve connected to it to move upward. During the continuous rise of the limiting sleeve, one end is fixedly connected to the limiting sleeve and the other end is fixedly connected to the lower surface of the extrusion block. The second spring will be compressed and deformed under the continuous extrusion of the limiting sleeve, thereby pushing the extrusion block to exert a greater frictional extrusion effect on the material strip. On the one hand, this prevents the soft material strip from passing through the C-shaped frame and the extrusion block, which would affect the tightness of the material strip to be cut later. On the other hand, it enhances the tightness of the material strip, which facilitates the cutting device to cut the material strip quickly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structural principle of the present invention.

[0021] Figure 2 This is a schematic diagram illustrating the structural principle of the first mounting plate on the side opposite the material reel in this invention.

[0022] Figure 3 This is a schematic diagram of the structural principle of the first mounting plate relative to the turbine side in this invention.

[0023] Figure 4This is a schematic diagram of the structural principle of the stop device in this invention.

[0024] Figure 5 This is a schematic diagram of the structural principle of the C-shaped frame and the extrusion block in this invention.

[0025] Figure 6 This is a schematic diagram of the structural principle of the traction device in this invention.

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the rotating roller located at one end of the annular limiting groove in this invention.

[0027] Figure 8 This is a schematic diagram of the structural principle of the lifting roller when it is tangent to the material belt in this invention.

[0028] The components and labels in the diagram include: 1. Workbench; 2. Traction device; 20. Sliding seat; 21. Limiting plate; 22. Pressing frame; 23. Third cylinder; 3. Mounting base; 30. First mounting plate; 31. Material reel; 32. Rotating roller; 33. Annular limiting groove; 331. Magnetic ring; 34. Support plate; 4. Stopping device; 41. Lifting roller; 42. L-shaped connecting rod; 43. Support arm; 44. Stop band; 45. Magnetic strip; 46. First spring; 47. Rotating wheel; 48. Rotating rod; 49. Turbine; 491. Worm gear; 49 2. Motor; 493. Limiting block; 5. Adjusting roller; 51. Support rod; 52. Support frame; 6. Guide roller; 61. First connecting plate; 62. Second connecting plate; 7. Threaded sleeve; 71. C-shaped frame; 72. Extrusion block; 73. Guide rod; 731. Limiting collar; 74. Second spring; 8. Fixing plate; 81. Lower pressure plate; 82. First cylinder; 9. Cutting device; 91. Lower gate; 911. Limiting rod; 912. Third spring; 92. Upper gate; 93. Connecting block; 94. Second cylinder; 95. Second mounting plate. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings.

[0030] Example 1 The specific structure involved in this embodiment is as follows: Figures 1-8 As shown, the main structure of the material roll synchronous self-locking stop mechanism includes: a workbench 1, an electric slide table on the upper surface of the workbench 1 and a traction device 2 for traction of the material strip slidably connected on the electric slide table, a mounting base 3 installed at the end of the upper surface of the workbench 1 away from the traction device 2, a first mounting plate 30 fixedly connected to one side of the top of the mounting base 3 and a rotating roller 32 rotatably connected to the top of the first mounting plate 30, a material roll 31 sleeved and fixed on the rotating roller 32 and a material roll is provided inside the material roll 31; Mounting base 3 is located on one side of first mounting plate 30 and is fixedly connected to second connecting plate 62. First connecting plate 61 is fixedly mounted on second connecting plate 62. Guide roller 6 for guiding material belt is rotatably connected to the top of first connecting plate 61. Cutting device 9 for cutting material belt is provided between guide roller 6 and traction device 2. The stop device 4 includes a support arm 43 rotatably connected to the first mounting plate 30. An L-shaped connecting rod 42 is fixedly connected to the end of the support arm 43 away from the mounting base 3. A lifting roller 41 is rotatably connected to the end of the L-shaped connecting rod 42 away from the support arm 43, and the lower surface of the lifting roller 41 is in contact with the material belt. An annular limiting groove 33 is opened at the end of the rotating roller 32 near the support arm 43, and a stop band 44 is in contact with the annular limiting groove 33. The two ends of the stop band 44 are respectively connected to the first mounting plate 30 and the support arm 43. A first spring 46 is fixedly connected to the bottom of the support arm 43, and a rotating wheel 47 is fixedly connected to the bottom end of the first spring 46. A rotating rod 48 is fixedly connected to the center of the rotating wheel 47. The rotating rod 48 passes through the first mounting plate 30 and is rotatably connected to the first mounting plate 30. The traction device 2 includes a sliding seat 20 that is slidably connected to an electric slide table. A limit plate 21 is fixedly connected to the top of the sliding seat 20. A pressure frame 22 is sleeved on the outside of the limit plate 21 and is slidably connected to the limit plate 21. A third cylinder 23 is fixedly connected to the side wall of the sliding seat 20 below the pressure frame 22 and the output shaft of the third cylinder 23 is fixedly connected to the bottom of the pressure frame 22. The cutting device 9 includes a lower gate 91 located below the material belt on one side of the guide roller 6 opposite to the traction device 2. One end of the lower gate 91 is fixedly connected to a second mounting plate 95, which is fixedly connected to a first mounting plate 30. An upper gate 92 is attached to the side wall of the lower gate 91 near the top. Limiting rods 911 are fixedly connected to both ends of the lower surface of the lower gate 91. A third spring 912 is sleeved on the outside of the limiting rod 911, and the two ends of the third spring 912 are fixedly connected to the opposite side of the lower gate 91 and the upper gate 92, respectively. The adjacent sides of the lower gate 91 and the upper gate 92 are both serrated. One end of the upper gate 92 is fixedly connected to a connecting block 93, and a second cylinder 94 is located above the connecting block 93. The second cylinder 94 is fixedly connected to the second mounting plate 95, and the output shaft of the second cylinder 94 passes through the connecting block 93 and is fixedly connected to the connecting block 93. In use, the material reel 31 is first fitted and fixed onto the rotating roller 32. Then, the material strip inside the material reel 31 is passed sequentially through the lower surface of the guide roller 6 and the cutting device 9, and finally fixed onto the traction device 2. When the traction device 2 is started, it moves along the electric slide table away from the mounting base 3, pulling the material strip inside the material reel 31 outward to complete the material strip conveying. After the material strip is conveyed to the specified length, it needs to be cut. To ensure the success rate of the material strip cutting, the material strip needs to be in a taut state during cutting. However, at the moment the traction device 2 stops pulling the material strip, the inertia generated by the material strip pulling the material reel 31 will cause the material reel 31 to continue to rotate at a certain angle, causing the material strip to output a longer section outward, resulting in the originally taut material strip becoming... The material strip becomes loose, causing the cutting device 9 to be unable to cut the fixed length of material strip quickly and accurately. To prevent the material strip from losing its tension and becoming loose during cutting, thus preventing rapid cutting, a stop device 4 is installed on the first mounting plate 30. The stop device 4 and its related structure stop the material reel 31 the moment the material strip becomes loose, thereby ensuring that the material reel 31 does not continue to rotate due to inertia after the traction device 2 stops pulling the material strip. This ensures that the material reel 31 remains taut and meets the cutting standard even after the traction device 2 stops pulling. Specifically, this is achieved by rotating the support arm 43 connected to the first mounting plate 30, fixing the L-shaped connecting rod 42 to the support arm 43, and rotating the lifting roller 4 to the L-shaped connecting rod 42. 1. As a trigger unit, it controls the relevant structure to momentarily stop the material reel 31 according to the real-time state of the material strip. When the traction device 2 is not pulling, the first spring 46 is in the normal state, and the stop band 44 is tightly attached to the annular limiting groove 33 to stop the material reel 31, so that the material reel 31 remains in a stable stationary state. When the traction device 2 pulls and moves, it is affected by the traction force and gradually changes from a loose state to a tight state. During this process, the material strip located below the lifting roller 41 will first adhere to the lower surface of the lifting roller 41 and push the lifting roller 41 upward. Finally, the lower surface of the lifting roller 41 will intersect the tangent line formed by the bottom of the guide roller 6 and the top of the material reel 31. During the upward movement of the lifting roller 41, the lifting roller 41 pushes the L-shaped connecting rod 42 and the support arm 4. 3. The top of the first mounting plate 30 is deflected diagonally upwards, pushing the stop band 44 diagonally upwards to disengage it from the annular limiting groove 33 on the rotating roller 32. After the stop band 44 disengages from the annular limiting groove 33, the rotating roller 32 can rotate normally, and the material reel 31 continues to feed when the traction device 2 pulls. During this period, the first spring 46 is stretched and deformed by the diagonally upward pulling force of the support arm 43. When the material strip changes from a taut state to a slack state, the first spring 46 quickly returns to its original state from the stretched state, simultaneously pulling the support arm 43 to return to its original state. Finally, the stop band 44 is re-entered into the rotating roller 32 to stop the rotating roller 32. The lifting roller 41 makes corresponding actions according to the different states of the material strip.This allows for the rapid activation of the stop band 44, which stops the rotating roller 32, and the release of the stop.

[0031] like Figure 8 As shown, when the material roll in the reel 31 is used to its minimum, the tangent point between the lifting roller 41 and the material strip is located below the tangent line connecting the tangent point between the material roll and the material strip in the reel 31 and the tangent point between the bottom of the guide roller 6 and the material strip. The tangent point between the material roll and the material strip in the reel 31 is set as A, the tangent point between the bottom of the guide roller 6 and the material strip is set as B, and the tangent point between the bottom of the lifting roller 41 and the material strip is set as C. Point C is located below the tangent line connecting points A and B. The distance from point C to the tangent line is the lifting distance of the lifting roller 41. Figure 8 As shown in the figure, L is the lifting distance of the lifting roller 41. The specific process is that when the material strip changes from a loose state to a taut state, the bottom point C of the lifting roller 41 is gradually pushed to be tangent to the tangent line, so that even when the material roll is in the minimum state, it still has the effect of lifting the lifting roller 41 and releasing the stop.

[0032] In another embodiment, a support frame 52 is fixedly connected to the side wall of the first mounting plate 30. A support rod 51 is fixedly connected to one end of the support frame 52 near the lifting roller 41, and an adjusting roller 5 is rotatably connected to the support rod 51. The highest point of the top of the adjusting roller 5 is higher than the maximum rising height of the highest point of the top of the lifting roller 41. Since the thickness of the material roll in the material roll reel 31 will gradually decrease during continuous use, and the tangent position between the material roll and the lower surface of the guide roller 6 will also shift downward when the thinned material roll is conveyed outward, this will cause the material roll to push the lifting roller 41 to rise a greater distance when it is taut. As the height decreases, the upward thrust of the lifting roller 41 also decreases, ultimately preventing the lifting roller 41 from rising to the designated position. This prevents the stop band 44 from completely disengaging from the rotating roller 32, thus hindering the rotation of the rotating roller 32 and preventing it from properly conveying the material belt outwards. To solve this problem, a support frame 52 is fixedly connected to the side wall of the first mounting plate 30, and a support rod 51 is fixedly connected to the support frame 52. The adjusting roller 5, which is rotatably connected to the support rod 51, is placed at a position higher than the maximum rising height of the top of the lifting roller 41, thereby reducing the distance between the lifting roller 41 and the top of the roller. The angle between the adjusting roller 5 and the guide roller 6 is the point. The smaller the angle, the greater the upward thrust of the material strip on the lifting roller 41, and the greater the opening force of the lifting roller 41. Conversely, if the adjusting roller 5 is not provided, the thickness of the material roll will gradually decrease as it is used continuously. The angle when the material strip passes through the bottom of the lifting roller 41 from the material roll 31 and extends from the top of the guide roller 6 will gradually increase, resulting in a smaller upward force of the material strip pushing the lifting roller 41. This reduces the opening force of the lifting roller 41, and the stopping device 4 cannot quickly stop or release the stop according to the condition of the material strip. On the one hand, it solves the problem of unstable opening states of lifting roller 41 and stop belt 44 caused by the decrease in conveying height of the material strip as the material roll gradually thins, ensuring that the height of the material strip remains unchanged when it is conveyed outward. When the material roll 31 rotates to feed the material, the stop belt 44 can completely disengage from the rotating roller 32, releasing the stopping effect on the rotating roller 32 and ensuring the normal rotation and feeding of the rotating roller 32. On the other hand, by using the adjusting roller 5 to raise the height of the material strip when it passes through the lifting roller 41, the opening force of the lifting roller 41 can be increased, so that the lifting roller 41 can quickly trigger the stop state during the material strip state change.

[0033] Example 2 This embodiment is a further improvement on embodiment 1, such as... Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the end of the first spring 46 away from the support arm 43 is fixedly connected to the eccentric part of the side wall of the rotating wheel 47. The end of the rotating rod 48 away from the rotating wheel 47 is sleeved and fixedly fitted with a turbine 49. The first mounting plate 30 is fixedly connected to the side opposite to the rotating wheel 47 with a motor 492, and the output shaft of the motor 492 is fixedly connected to a worm gear 491. The bottom of the worm gear 491 is meshed with the turbine 49. Limit blocks 493 are rotatably connected to both ends of the worm gear 491, and the end of the limit block 493 away from the worm gear 491 is fixedly connected to the first mounting plate 30. When it is necessary to adjust the tension of the first spring 46 on the support arm 43 in the initial state, so that the friction force when the support arm 43 pulls down the stop band 44 and engages with the annular limit groove 33 is changed, thereby enhancing or reducing the stopping effect, it is only necessary to start the motor 492 and use the output shaft of the motor 492 to drive The worm gear 491 rotates, during which the limiting block 493 maintains the stability of the worm gear 491 during rotation. The turbine 49, which meshes with the worm gear 491, rotates synchronously with the worm gear 491, thereby driving the rotating rod 48, which is fixedly connected to its center, to rotate the rotating wheel 47, which is fixedly connected to its other end. Since one end of the first spring 46 is fixedly connected to the eccentric point on the surface of the rotating wheel 47, it is only necessary to control the rotating wheel 47 to fix the first spring 46 at the eccentric point of the rotating wheel 47 as needed to drive it to deflect. This will cause the first spring 46 to be stretched or reset to different degrees, thereby achieving the effect of adjusting the stretching state of the first spring 46. Finally, it is possible to freely adjust the tension of the stop band 44 when it is sleeved on the annular limiting groove 33 and the friction between the two, thereby achieving the effect of adjusting the stop device 4 on the material reel 31.

[0034] The stop band 44 is configured as a V-shaped or wedge-shaped band, and the inner wall shape of the annular limiting groove 33 is adapted to the shape of the stop band 44. The maximum separation distance of the stop band 44 within the annular limiting groove 33 is less than the groove depth of the annular limiting groove 33. To further increase the friction between the stop band 44 and the annular limiting groove 33 and improve the stopping effect of the stop band 44, the contact area between the stop band 44 and the annular limiting groove 33 is increased by configuring the stop band 44 as a V-shaped or wedge-shaped band, thereby increasing the friction between the annular limiting groove 33 and the stop band 44. The force is used to improve the stopping effect of the stop band 44. At the same time, by limiting the maximum separation distance of the stop band 44 in the annular limiting groove 33 to be less than the groove depth of the annular limiting groove 33, even when the stop band 44 is completely separated from the inner wall of the annular limiting groove 33, a part of the band will still remain in the annular limiting groove 33. This makes it convenient for the stop band 44 to be accurately fitted into the annular limiting groove 33 for stopping the next time. This avoids the problem that the stop band 44 cannot be accurately fitted into the annular limiting groove 33 due to the excessive separation distance, which would cause the stopping to fail.

[0035] A magnetic strip 45 is embedded within the stop band 44, and a magnetic ring 331 is embedded within the end of the rotating roller 32 corresponding to the annular limiting groove 33. The magnetic poles of the magnetic ring 331 and the magnetic strip 45 are the same. With the magnetic strip 45 embedded within the stop band 44 and the magnetic ring 331 embedded within the rotating roller 32, when the support arm 43 pushes the stop band 44 and the annular limiting groove 33 to separate, the magnetic repulsion between them accelerates the stop band 44 outwards, allowing it to quickly detach from the annular limiting groove 33. This repulsion ensures that the stop band 44 and the annular limiting groove 33 do not contact each other, reducing friction and achieving a rapid release of the stopping effect. When stopping is required, the return force of the first spring 46 is sufficient to overcome the initial repulsion between the magnetic strip 45 and the magnetic ring 331, driving the stop band 44 to quickly engage with the annular limiting groove 33 to achieve friction locking.

[0036] The lower end of the stop band 44 is rotatably connected to the first mounting plate 30, and the upper end of the stop band 44 is rotatably connected to the side of the support arm 43 near the first mounting plate 30. The stop band 44 is made of natural rubber, neoprene rubber, or polyurethane rubber and contains metal wires. When the support arm 43 pushes the stop band 44 obliquely upward to disengage it from the annular limiting groove 33, to prevent the upper part of the stop band 44 from disengaging under the push of the support arm 43 due to its soft material, while the lower part remains in contact with the annular limiting groove 33, thus avoiding incomplete disengagement and failure to release the stop, the metal wires are embedded in... The stop band 44 incorporates high-toughness rubber material to enhance its overall resilience, allowing it to quickly detach when pushed upwards and out of the annular limiting groove 33 by the support arm 43. Furthermore, by limiting the rotational connection of both ends of the stop band 44 to the first mounting plate 30 and the support arm 43 respectively, the inherent resilience of the stop band 44 causes both ends to rotate at an appropriate angle when pushed, ensuring the stop band 44 maintains a stable shape and preventing incomplete detachment caused by one part detaching while the other remains attached.

[0037] Example 3 This embodiment serves as a further supplement to Embodiment 1, such as... Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, a support plate 34 is fixedly connected to the mounting base 3, and a C-shaped frame 71 is fixedly connected to the top of the support plate 34. An extrusion block 72 is provided below the C-shaped frame 71 and is located inside the C-shaped frame 71. Two guide rods 73 are fixedly connected to the bottom of the extrusion block 72, which pass through the bottom of the C-shaped frame 71. A second spring 74 for pushing the extrusion block 72 upward to extrude the roll is sleeved on the outer side of each of the two guide rods 73. By setting the C-shaped frame 71 and the extrusion block 72 between the guide roller 6 and the cutting device 9, the strip needs to pass through the C-shaped frame 71 and the extrusion block 72 before entering the cutting device 9 along the lower surface of the guide roller 6. At this time, it is only necessary to change the compression amount of the second spring 74 to change the extrusion force of the extrusion block 72 on the C-shaped frame 71 when it rises, thereby adjusting the extrusion effect of the extrusion block 72 and the C-shaped frame 71 on the strip passing through, preventing the strip from continuing to move to the shearing side when the pulling of the strip stops, thus ensuring that the strip on the side to be sheared is in a taut state, which facilitates the subsequent rapid cutting by the cutting device 9.

[0038] The bottom of the C-shaped frame 71 has threaded holes corresponding to two guide rods 73, and each threaded hole is threaded with a threaded sleeve 7. The bottom ends of the two guide rods 73 pass through the center of the corresponding threaded sleeve 7 and are slidably connected to the threaded sleeve 7. The top end of the threaded sleeve 7 is rotatably connected to a limiting collar 731, and the top end of the limiting collar 731 is sleeved and fixed to a second spring 74. The end of the second spring 74 away from the limiting collar 731 is fixedly connected to the top of the inner wall of the extrusion block 72. When the guide rod 73 passes through the center of the threaded sleeve 7 and is slidably connected to the threaded sleeve 7, it can provide stable guiding support for the up and down movement of the extrusion block 72. When it is necessary to adjust the up and down position of the extrusion block 72 to change the extrusion force of the extrusion block 72 on the material strip passing between the extrusion block 72 and the C-shaped frame 71, it is only necessary to rotate the threaded sleeve. The threaded sleeve 7, which is threadedly connected to the bottom threaded hole of the C-shaped frame 71, rotates continuously upward, pushing the limiting collar 731, which is rotatably connected to it, to move upward. During the continuous upward movement of the limiting collar 731, a second spring 74, with one end fixedly connected to the limiting collar 731 and the other end fixedly connected to the lower surface of the extrusion block 72, will be compressed and deformed under the continuous extrusion of the limiting collar 731, thereby pushing the extrusion block 72 to exert a greater frictional extrusion effect on the material strip. Conversely, the extrusion force of the extrusion block 72 on the material strip is reduced. The magnitude of the frictional force when the extrusion block 72 extrudes the material strip is achieved by using the forward and reverse rotation of the threaded sleeve 7. By adjusting the extrusion force of the extrusion block 72 on the material strip, the effect of balancing frictional force to ensure that the material strip remains taut while avoiding excessive frictional force that could cause the material strip to be stretched or broken is achieved.

[0039] A fixing plate 8 is provided between the C-shaped frame 71 and the cutting device 9, and the fixing plate 8 is fixedly connected to the support plate 34. A first cylinder 82 is fixedly connected to the side wall of the support plate 34. The output shaft of the first cylinder 82 is fixedly connected to a lower pressure plate 81, and the lower pressure plate 81 is positioned directly above the fixing plate 8. By fixing the fixing plate 8 to the support plate 34 and positioning the lower pressure plate 81 above the fixing plate 8, the output shaft of the first cylinder 82 is used to control the up and down movement of the lower pressure plate 81. This allows the lower pressure plate 81 to adjust the pressing effect of the material strip passing through the fixing plate 8 and the lower pressure plate 81, thereby improving the tension effect of the material strip during the conveying process. Together with the extrusion block 72, the material strip on the side to be cut is taut during cutting, which facilitates the cutting device 9 to quickly cut the material strip.

[0040] Working principle: During operation, the material reel 31 is first fixed on the rotating roller 32. Then, the material strip in the material reel 31 passes through the lower surface of the guide roller 6 and the cutting device 9 in sequence, and is finally fixed on the traction device 2. The third cylinder 23 in the traction device 2 drives the pressing frame 22 to press down, clamping the end of the material strip that passes between the limiting plate 21 and the pressing frame 22, so as to facilitate the subsequent movement of the material strip. When the traction device 2 is started, it moves along the electric slide table away from the mounting base 3 and pulls the material strip in the material reel 31 to extend outward, completing the conveying of the material strip. After the material strip is conveyed to the specified length, it needs to be cut. During the cutting, the output shaft of the second cylinder 94 drives the upper gate 92 to move quickly to the lower gate 91 through the connecting block 93. With the upper gate 92 and the lower gate 91 both set to a sawtooth shape on the adjacent side, the material strip that has passed through is quickly cut. To ensure a high success rate in strip cutting, the strip needs to be taut during the cutting process. However, at the moment the traction device 2 stops pulling the strip, the inertia generated by the strip pulling will cause the reel 31 to continue rotating at a certain angle, resulting in the strip being pushed outwards a longer section. This causes the originally taut strip to become loose, making it difficult for the cutting device 9 to cut the fixed length of strip quickly and accurately. To prevent the strip from becoming loose and unable to cut quickly during the cutting process, a stop device 4 is installed on the first mounting plate 30. The stop device 4 and its related structure stop the reel 31 at the moment the strip becomes loose. The material reel 31 stops rotating due to inertia after the traction device 2 stops pulling the material belt, thus ensuring that it remains taut and meets cutting standards even after the traction device 2 stops pulling. Specifically, the support arm 43 rotatably connected to the first mounting plate 30, the L-shaped connecting rod 42 fixedly connected to the support arm 43, and the lifting roller 41 rotatably connected to the L-shaped connecting rod 42 serve as trigger units. Based on the real-time state of the material belt, the relevant structures are controlled to momentarily stop the material reel 31. When the traction device 2 is not pulling, the first spring 46 is in its normal state, and the stop band 44 is tightly pressed against the annular limiting groove 33 to stop the material reel 31. The stop keeps the material reel 31 in a stable, stationary state. When the traction device 2 pulls it, it gradually shifts from a loose to a taut state under the influence of traction force. During this process, the material strip below the lifting roller 41 will first adhere to the lower surface of the lifting roller 41 and push the lifting roller 41 upward. Finally, the lower surface of the lifting roller 41 will intersect the tangent line formed by the bottom of the guide roller 6 and the top of the material reel 31. During the upward movement of the lifting roller 41, the lifting roller 41 pushes the L-shaped connecting rod 42 and the support arm 43 to deflect obliquely upward at the top of the first mounting plate 30, and pushes the stop band 44 to move obliquely upward, causing it to disengage from the annular limiting groove 33 opened on the rotating roller 32. After the stop band 44 disengages from the annular limiting groove 33, the rotating roller 32 can rotate normally. When the traction device 2 pulls, the material reel 31 continues to feed. During this period, the first spring 46 is stretched and deformed by the upward pulling force of the support arm 43. When the material strip changes from a taut state to a slack state, the first spring 46 quickly returns to its original state from the stretched state, and at the same time pulls the support arm 43 to return to its original state. Finally, the stop band 44 is re-inserted into the rotating roller 32 to stop the rotating roller 32. The lifting roller 41 makes corresponding actions according to the different state changes of the material strip to quickly trigger the stop band 44 to stop the rotating roller 32 and release the stopping effect. By fixing the support frame 52 to the side wall of the first mounting plate 30, and by fixing the support rod 51 to the support frame 52, the adjusting roller 5, which is rotatably connected to the support rod 51, is placed at a position higher than the maximum rising height of the top of the lifting roller 41. On the one hand, this solves the problem of unstable opening state of the lifting roller 41 and the stop belt 44 caused by the decrease in the conveying height of the material strip during the gradual thinning of the material roll. This ensures that the height of the material strip remains constant when it is conveyed outward. When the material roll 31 rotates to feed the material, the stop belt 44 can completely detach from the rotating roller 32, thereby releasing the stopping effect on the rotating roller 32 and ensuring the normal rotation and feeding of the rotating roller 32. On the other hand, by raising the height of the material strip when it passes through the lifting roller 41 using the adjusting roller 5, the opening force of the lifting roller 41 can be increased, so that the lifting roller 41 can quickly trigger the stop state during the change of the material strip state. When it is necessary to adjust the tension of the first spring 46 on the support arm 43 in the initial state, so that the friction force when the support arm 43 pulls down to engage the stop band 44 with the annular limiting groove 33 is changed, thereby enhancing or reducing the stopping effect, it is only necessary to start the motor 492. The output shaft of the motor 492 drives the worm gear 491 to rotate. During this time, the limiting block 493 maintains the stability of the worm gear 491 during rotation, while the worm gear 49, which is meshed with the worm gear 491, rotates synchronously with the worm gear 491, thereby driving the rotating rod 48, which is fixedly connected to its center, to move its... The rotating wheel 47, which is fixedly connected to the other end, rotates. Since one end of the first spring 46 is fixedly connected to the eccentric point on the surface of the rotating wheel 47, it is only necessary to control the rotating wheel 47 to fix the first spring 46 at the eccentric point of the rotating wheel 47 as needed to drive it to deflect. This will cause the first spring 46 to be stretched or reset to different degrees, thereby achieving the effect of adjusting the stretching state of the first spring 46. Finally, it will be possible to freely adjust the tension of the stop band 44 when it is sleeved on the annular limiting groove 33 and the friction between the two, thereby achieving the effect of adjusting the stop device 4 on the material reel 31. To further increase the friction between the stop band 44 and the annular limiting groove 33 and improve the stopping effect of the stop band 44, the stop band 44 is designed as a V-shaped or wedge-shaped band to increase the contact area between the stop band 44 and the annular limiting groove 33, thereby increasing the friction between the annular limiting groove 33 and the stop band 44 and improving the stopping effect of the stop band 44. At the same time, by limiting the maximum separation distance of the stop band 44 in the annular limiting groove 33 to be less than the groove depth of the annular limiting groove 33, even when the stop band 44 is completely separated from the inner wall of the annular limiting groove 33, a part of the band will still remain in the annular limiting groove 33. This makes it convenient for the stop band 44 to be accurately fitted into the annular limiting groove 33 for stopping the next time, avoiding the problem that the stop band 44 cannot be accurately fitted into the annular limiting groove 33 due to the excessive separation distance, which would cause the stopping band 44 to fail to stop the next time. A magnetic strip 45 is embedded in the stop band 44 and works in conjunction with a magnetic ring 331 embedded in the rotating roller 32. When the support arm 43 pushes the stop band 44 and the annular limiting groove 33 to separate, the magnetic repulsion between the two can accelerate the stop band 44 to spring outward, so that the stop band 44 quickly separates from the annular limiting groove 33. The presence of the repulsion force can ensure that the stop band 44 and the annular limiting groove 33 do not contact each other at all, reducing the friction between the two and achieving the effect of quickly releasing the stop. When the support arm 43 pushes the stop band 44 diagonally upward to disengage from the annular limiting groove 33, in order to prevent the upper part of the stop band 44 from disengaging under the push of the support arm 43 due to its soft material, while the lower part remains attached to the annular limiting groove 33, thus causing incomplete disengagement and failure to release the stop, a metal wire is embedded in the stop band 44 and combined with the high-toughness rubber material used to comprehensively improve the toughness of the stop band 44. This allows it to achieve a rapid overall disengagement when pushed diagonally upward by the support arm 43 and disengaged from the annular limiting groove 33. At the same time, by limiting the rotational connection of the two ends of the stop band 44 to the first mounting plate 30 and the support arm 43 respectively, the toughness of the stop band 44 itself will cause the two ends to rotate at an appropriate angle when it is pushed, so that the stop band 44 always maintains a stable shape, further preventing the problem of incomplete disengagement caused by one part of the stop band 44 disengaging while the other part remains attached. By setting a C-shaped frame 71 and an extrusion block 72 between the guide roller 6 and the cutting device 9, the material strip needs to pass through the C-shaped frame 71 and the extrusion block 72 before entering the cutting device 9 along the lower surface of the guide roller 6. At this time, only the compression of the second spring 74 needs to be changed to change the extrusion force of the extrusion block 72 on the C-shaped frame 71 when it rises, thereby adjusting the extrusion effect of the extrusion block 72 and the C-shaped frame 71 on the material strip passing through it. This prevents the material strip from continuing to move towards the shearing side when the pulling of the material strip stops, thus ensuring that the material strip on the side to be sheared is in a taut state, which facilitates the subsequent rapid cutting by the cutting device 9. When the guide rod 73 passes through the center of the threaded sleeve 7 and slides through the threaded sleeve 7, it can provide stable guiding support for the up and down movement of the extrusion block 72. When it is necessary to adjust the up and down position of the extrusion block 72 to change the extrusion force of the extrusion block 72 on the material strip passing through the C-shaped frame 71 and the extrusion block 72, the extrusion block 72 can be adjusted to change the extrusion force of the extrusion block 72 on the C-shaped frame 71 when it rises. When the extrusion pressure of the material strip between the frames 71 is applied, simply rotate the threaded sleeve 7 so that the threaded sleeve 7, which is threaded in the threaded hole at the bottom of the C-shaped frame 71, continues to rotate upward and pushes the limiting collar 731 connected to it to move upward. During the continuous upward movement of the limiting collar 731, the second spring 74, which is fixedly connected to the limiting collar 731 at one end and fixedly connected to the lower surface of the extrusion block 72 at the other end, will be compressed and deformed under the continuous extrusion of the limiting collar 731, thereby pushing the extrusion block 72 to extrude a greater frictional extrusion effect on the material strip. Conversely, the extrusion pressure of the extrusion block 72 on the material strip is reduced. The magnitude of the frictional force when the extrusion block 72 extrudes the material strip is achieved by using the forward and reverse rotation of the threaded sleeve 7. By adjusting the extrusion pressure of the extrusion block 72 on the material strip, the effect of balancing the frictional force to ensure that the material strip remains taut is achieved while avoiding excessive friction that could cause the material strip to be stretched or broken. By fixing the fixed plate 8 to the support plate 34 and setting the lower pressure plate 81 above the fixed plate 8, the lower pressure plate 81 is moved up and down by the output shaft of the first cylinder 82. This allows the lower pressure plate 81 to adjust the pressing effect of the material strip passing through the fixed plate 8 and the lower pressure plate 81, thereby improving the tension of the material strip during the conveying process. Together with the extrusion block 72, the material strip on the side to be cut is taut during cutting, which facilitates the cutting device 9 to cut the material strip quickly.

Claims

1. A cartridge synchronization self-locking cocking mechanism characterized by, The main structure includes: a workbench (1), a traction device (2), a mounting base (3), a stop device (4), an adjusting roller (5), a guide roller (6), a threaded sleeve (7), a fixing plate (8), and a cutting device (9); the upper surface of the workbench (1) is provided with an electric slide table and a traction device (2) for traction of the material belt is slidably connected on the electric slide table; a mounting base (3) is installed on the upper surface of the workbench (1) away from the traction device (2); a first mounting plate (30) is fixedly connected to one side of the top of the mounting base (3) and a rotating roller (32) is rotatably connected to the top of the first mounting plate (30); a material reel (31) is sleeved and fixed on the rotating roller (32) and a material reel is provided inside the material reel (31); a second connecting plate (62) is fixedly connected to one side of the mounting base (30) and a first connecting plate (61) is fixedly installed on the second connecting plate (62); a guide roller (6) for guiding the material belt is rotatably connected to the top of the first connecting plate (61); the guide roller (6) is connected to the traction device. A cutting device (9) for cutting the material strip is provided between the two positions (2); the stop device (4) includes a support arm (43) rotatably connected to the first mounting plate (30), an L-shaped connecting rod (42) is fixedly connected to the end of the support arm (43) away from the mounting base (3), a lifting roller (41) is rotatably connected to the end of the L-shaped connecting rod (42) away from the support arm (43), and the lower surface of the lifting roller (41) is in contact with the material strip, and an annular opening is provided at the end of the rotating roller (32) near the support arm (43). A stop band (44) is attached to the limiting groove (33) and the annular limiting groove (33). The two ends of the stop band (44) are respectively connected to the first mounting plate (30) and the support arm (43). The bottom of the support arm (43) is fixedly connected to the first spring (46) and the bottom end of the first spring (46) is fixedly connected to the rotating wheel (47). The center of the rotating wheel (47) is fixedly connected to the rotating rod (48). The rotating rod (48) passes through the first mounting plate (30) and is rotatably connected to the first mounting plate (30).

2. A web synchronizing self-locking stop motion mechanism according to claim 1, characterized in that: When the material roll in the reel (31) is used to the minimum, the tangent point between the lifting roller (41) and the material strip is located below the tangent line formed by the tangent point between the material roll and the material strip in the reel (31) and the bottom of the guide roller (6) and the tangent point between the guide roller (6) and the material strip.

3. A synchronized locking mechanism for a spool according to claim 1, wherein: A support frame (52) is fixedly connected to the side wall of the first mounting plate (30). A support rod (51) is fixedly connected to one end of the support frame (52) near the lifting roller (41), and an adjusting roller (5) is rotatably connected to the support rod (51). The highest point of the top of the adjusting roller (5) is higher than the maximum rising height of the highest point of the top of the lifting roller (41).

4. A web synchronizing self-locking stop motion mechanism according to claim 1, wherein: The end of the first spring (46) away from the support arm (43) is fixedly connected to the eccentric side wall of the rotating wheel (47). The end of the rotating rod (48) away from the rotating wheel (47) is fitted with a turbine (49). The first mounting plate (30) is fixedly connected to a motor (492) on the side opposite to the rotating wheel (47), and the output shaft of the motor (492) is fixedly connected to a worm (491). The bottom of the worm (491) is meshed with the turbine (49). The two ends of the worm (491) are rotatably connected to limit blocks (493), and the end of the limit block (493) away from the worm (491) is fixedly connected to the first mounting plate (30).

5. A web synchronizing self-locking stop motion mechanism according to claim 1, wherein: The stop band (44) is set as a V-shaped band or a wedge-shaped band. The inner wall shape of the annular limiting groove (33) is adapted to the shape of the stop band (44). The maximum separation distance of the stop band (44) in the annular limiting groove (33) is less than the groove depth distance of the annular limiting groove (33).

6. A web synchronizing self-locking catch mechanism according to claim 5, characterized in that: A magnetic strip (45) is embedded in the stop strip (44), and a magnetic ring (331) is embedded in the end of the rotating roller (32) corresponding to the annular limiting groove (33). The magnetic ring (331) and the magnetic strip (45) have the same magnetic poles.

7. The material roll synchronous self-locking stop mechanism according to claim 6, characterized in that: The lower end of the stop strip (44) is rotatably connected to the first mounting plate (30), and the upper end of the stop strip (44) is rotatably connected to the side of the support arm (43) near the first mounting plate (30). The stop strip (44) is made of natural rubber, neoprene rubber or polyurethane rubber and has metal wires inside.

8. A spool synchronization self-locking stop motion mechanism according to claim 1, characterized in that: A support plate (34) is fixedly connected to the mounting base (3), and a C-shaped frame (71) is fixedly connected to the top of the support plate (34). An extrusion block (72) is provided below the C-shaped frame (71), and the extrusion block (72) is located inside the C-shaped frame (71). Two guide rods (73) that pass through and connect to the bottom of the C-shaped frame (71) are fixedly connected to the bottom of the extrusion block (72). A second spring (74) for pushing the extrusion block (72) to extrude the winding tape upward is sleeved on the outside of the two guide rods (73).

9. A web synchronizing self-locking stop motion mechanism according to claim 8, wherein: The bottom of the C-shaped frame (71) is provided with threaded holes corresponding to two guide rods (73), and threaded sleeves (7) are threadedly connected in both threaded holes. The bottom ends of the two guide rods (73) pass through the center of the corresponding threaded sleeves (7) and are slidably connected to the threaded sleeves (7). The top end of the threaded sleeves (7) is rotatably connected to a limiting ring (731), and the top end of the limiting ring (731) is sleeved and fixed to the second spring (74). The end of the second spring (74) away from the limiting ring (731) is fixedly connected to the top of the inner wall of the extrusion block (72).

10. A cartridge synchronization self-locking stop mechanism according to claim 9, characterized in that: A fixing plate (8) is provided between the C-shaped frame (71) and the cutting device (9), and the fixing plate (8) is fixedly connected to the support plate (34). A first cylinder (82) is fixedly connected to the side wall of the support plate (34), and a lower pressure plate (81) is fixedly connected to the output shaft of the first cylinder (82), and the lower pressure plate (81) is located directly above the fixing plate (8).

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