A packing liner material conveying mistake-proofing device and method

Abstract

The present application relates to the technical fields of packaging liner material transportation mistake proofing, particularly to a packaging liner material transportation mistake proofing device and method, the device comprising: a mounting seat, an electromagnetic valve, a mounting block, a pneumatic cylinder, a mistake proofing assembly, an eccentric adjusting wheel, a support plate and a thin-walled material; the mounting seat bottom is fixedly installed with the electromagnetic valve, the mounting seat top is fixedly installed with the mounting block, the mounting block is movably installed with the pneumatic cylinder, and one end of the pneumatic cylinder is connected with the electromagnetic valve; the mounting seat top is fixedly installed with the mistake proofing assembly through a locking piece, the mistake proofing assembly is hingedly connected with the end of the pneumatic cylinder away from the electromagnetic valve, a plurality of support plates are fixedly installed on one side of the eccentric adjusting wheel, and the plurality of support plates are placed with the thin-walled material; the present application directly blocks or clamps the material without driving the baffle by the pneumatic cylinder, avoids damaging the material surface, avoids the rigid impact to the equipment, and improves the response speed and reliability of the mistake proofing device.

Description

Technical Field

[0001] This invention relates to the field of error prevention technology in the transportation of packaging inner materials, and in particular to an error prevention device and method for the transportation of packaging inner materials. Background Technology

[0002] In automated production lines for thin-walled packaging liners (such as soft packaging for food and daily chemical products), materials are continuously conveyed through conveyor channels. If an abnormality such as blockage or positioning error occurs in the preceding process, the conveying of materials at the current workstation must be stopped immediately.

[0003] Existing technologies generally use cylinder-driven baffles to directly block or clamp materials. For thin-walled materials with poor rigidity, frontal blocking or clamping can easily cause indentations, deformation, or even cracks on the material surface, resulting in product scrap. At the same time, rigid blocking mechanisms have a large impact force, which can easily damage the equipment itself, and the response speed and reliability are poor.

[0004] Therefore, the present invention proposes a device and method for preventing errors in the transportation of packaging inner liner materials. Summary of the Invention

[0005] The technical objective of this invention is to address the problem that existing error-proofing devices, which use cylinder-driven baffles to directly block or clamp materials, are prone to causing indentations, deformation, or even cracks on the material surface, resulting in product scrap, especially for thin-walled materials with poor rigidity. Furthermore, rigid blocking mechanisms generate significant impact, easily damaging the equipment itself, and have poor response speed and reliability. This invention eliminates the need for cylinder-driven baffles to directly block or clamp materials, avoiding damage to the material surface and preventing rigid impacts that could damage the equipment, thus improving the response speed and reliability of the error-proofing device.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A device for preventing incorrect transport of packaging inner material includes: a mounting base, a solenoid valve, a mounting block, a cylinder, an anti-mistake component, an eccentric adjusting wheel, a support plate, and thin-walled material;

[0008] A solenoid valve is fixedly installed at the bottom of the mounting base, and a mounting block is fixedly installed at the top of the mounting base. A cylinder is movably installed on the mounting block, and one end of the cylinder is connected to the solenoid valve. An anti-misalignment component is fixedly installed at the top of the mounting base by a locking member. The anti-misalignment component is hinged to the end of the cylinder away from the solenoid valve. Multiple support plates are fixedly installed on one side of the eccentric adjusting wheel. Thin-walled material is placed on the multiple support plates, and the side of the anti-misalignment component away from the cylinder is in contact with the thin-walled material.

[0009] The error-proofing component supports the thin-walled material, and the force on the cylinder and the error-proofing component is controlled by the solenoid valve to drive the error-proofing component away from the thin-walled material.

[0010] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, the error prevention component includes a frame, a sliding rod, a telescopic module, a right-angle swing arm, a first pin, an obtuse-angle swing arm, a second pin, a support roller and a third pin.

[0011] A sliding rod is slidably mounted on the frame, and a telescopic module is fixedly mounted on the frame, with the telescopic module located above the sliding rod. The right-angled swing arm is hinged to one end of the sliding rod and one end of the telescopic module via two first pins, and the obtuse-angled swing arm is hinged to the other end of the sliding rod and the telescopic module via two second pins. The end of the obtuse-angled swing arm away from the sliding rod is hinged to a support roller via a third pin.

[0012] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, the telescopic module includes a fixed block, a sliding block, an extension slider, a tension spring, a rotating rod, a rectangular slider, a locking block, a compression spring, and a rectangular limiting frame.

[0013] A rectangular groove is provided at one end of the fixed block, and a sliding block is slidably installed at one end of the fixed block. An extension slider is provided at the end of the sliding block near the fixed block, and the extension slider is located in the rectangular groove. A tension spring is fixedly installed in the rectangular groove, and the two ends of the tension spring are respectively fixedly connected to the end of the extension slider and the inner wall of the rectangular groove. A rotating rod is rotatably installed inside the fixed block, and its two ends pass through both sides of the fixed block. The rotating rod is located below the rectangular groove, and rectangular sliders are slidably installed at both ends of the rotating rod. Push plates are provided on the two rectangular sliders. Locking blocks are slidably installed on both sides of the fixed block, and the two locking blocks pass through the rectangular groove. The outer sides of the two locking blocks are respectively fixedly connected to one end of the two compression springs, and the other ends of the two compression springs are respectively fixedly connected to the inner sides of the two push plates. Rectangular limiting frames are fixedly installed on both sides of the fixed block, and the rotating rod, rectangular sliders, locking blocks, and compression springs on both sides of the fixed block are all located within the rectangular limiting frames.

[0014] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, wherein: the fixed block has a first through hole at the end away from the sliding block, and the first through hole is hinged to the right-angle swing arm through the first pin; the sliding block has a second through hole at the end away from the fixed block, and the second through hole is hinged to the obtuse-angle swing arm through the second pin.

[0015] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, the rotating rod is provided with limit rings at both ends, and the outer ends of the rotating rod located on both sides of the fixed block are respectively provided with threads, and the helical directions of the threads at both ends of the rotating rod are opposite, and the threads on both sides of the rotating rod are respectively located inside the limit rings on both sides.

[0016] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, wherein: a return spring is provided at one end of the cylinder, and a connecting ring is provided at the end of the cylinder away from the solenoid valve, and the connecting ring is hinged to the end of the right-angle swing arm through a fourth pin.

[0017] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, wherein: a knob is provided on one side of the long side of the frame, and the knob is fixedly connected to one end of the rotating rod; a rectangular groove is provided on one side of the short side of the frame, and the rectangular groove is slidably engaged with the sliding rod; a rectangular groove is provided on the top of the frame, and the rectangular groove is engaged with the telescopic module; a fixing groove is provided on both sides of the rectangular groove, and the fixing groove is engaged with the rectangular limiting frame.

[0018] As a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, wherein: the end of the card block located inside the rectangular slide groove has an arc-shaped structure.

[0019] In a preferred embodiment of the packaging inner material transportation error prevention device of the present invention, the width between the inner walls of the two sides of the rectangular limiting frame is equal to the width between the rectangular slider and the push plate, and the diameter of the compression spring is equal to the width between the inner walls of the two sides of the rectangular limiting frame.

[0020] A method for preventing errors during the transportation of packaging inner liner materials includes the following steps:

[0021] S1: When the thin-walled material unfolding and transportation malfunctions, too much thin-walled material will fold into the space between the support plate and the support roller. The support roller will be subjected to excessive force when in contact with the thin-walled material. The obtuse angle swing arm will rotate around the second pin on the sliding rod as the origin, pushing the extended slider on the sliding block to slide into the rectangular groove inside the fixed block.

[0022] S2: The blocks on both sides of the inner wall of the rectangular slide groove are squeezed outward, pushing the compression spring to compress and extending the slider to release the limit;

[0023] S3: The tension spring uses its elastic potential energy to pull the extension slider and sliding block to continue moving, triggering the support roller to disengage from the thin-walled material;

[0024] S4: When a fault occurs at the front of the production line, the control system immediately controls the solenoid valve to de-energize and reset, so that the cylinder is depressurized.

[0025] S5: The return spring on the cylinder pulls the cylinder to reset, and through the connecting ring pulls the right-angle swing arm to rotate around the first pin on the telescopic module as the origin, and pushes the sliding rod to slide on the frame. The sliding rod drives the obtuse-angle swing arm to rotate around the second pin on the telescopic module as the origin, triggering the support roller to disengage from the thin-walled material.

[0026] The beneficial effects of this invention are:

[0027] 1. This invention incorporates a fault-prevention component and a cylinder. Through the cooperation of the fault-prevention component and the cylinder, under different working conditions, when different abnormal situations are detected, the fault-prevention component is driven by the cylinder to disengage from the thin-walled material, or the fault-prevention component is automatically triggered to disengage from the thin-walled material. This eliminates the need for the cylinder to drive a baffle to directly block or clamp the material, avoiding damage to the material surface. At the same time, it avoids damage to the equipment caused by rigid impacts, improving the response speed and reliability of the fault-prevention device.

[0028] 2. This invention features a telescopic module on the error-proof component. The compression degree of the compression spring can be adjusted by the knob on the telescopic module, thereby setting the trigger threshold of the support roller. When the pressure between the support roller and the thin-walled material exceeds the threshold, the tension spring pulls the sliding block to move, triggering the support roller to disengage from the thin-walled material, which greatly improves the safety of the equipment and production line.

[0029] 3. This invention, by setting a return spring on the cylinder, causes the support roller to disengage from the thin-walled material when the control system detects an abnormality in other positions. After losing support, the thin-walled material naturally stops due to its own characteristics (such as gravity and flexibility), fundamentally eliminating damage to the thin-walled material caused by squeezing and collision, and improving the response speed and reliability of the error prevention device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the support rollers supporting thin-walled materials in the working state of an embodiment of this disclosure.

[0031] Figure 2 This is a schematic diagram of the support roller detaching from the thin-walled material in a stopped state according to an embodiment of this disclosure.

[0032] Figure 3 This is a three-dimensional structural diagram of the entire structure of the thin-walled material, support plate, and eccentric adjustment wheel in the embodiments of this disclosure.

[0033] Figure 4 This is a three-dimensional structural diagram of the entire structure without thin-walled material, support plate and eccentric adjustment wheel in the embodiment of this disclosure from another perspective.

[0034] Figure 5 This is a three-dimensional structural diagram of the frame and telescopic module in an embodiment of this disclosure.

[0035] Figure 6 This is a three-dimensional structural diagram of the telescopic module in an embodiment of this disclosure.

[0036] Figure 7 This is a three-dimensional structural diagram of the internal structure of the telescopic module in an embodiment of this disclosure.

[0037] Figure 8 This is a three-dimensional structural diagram of the internal structure of the telescopic module in an embodiment of this disclosure from another perspective.

[0038] Figure 9 This is a three-dimensional structural diagram of the rack in an embodiment of this disclosure.

[0039] Reference numerals: 1. Mounting base; 2. Solenoid valve; 3. Mounting block; 4. Cylinder; 41. Return spring; 42. Connecting ring; 43. Fourth pin; 5. Error-proofing component; 51. Frame; 511. Knob; 512. Rectangular slot; 513. Rectangular groove; 514. Fixing groove; 52. Sliding rod; 53. Telescopic module; 531. Fixing block; 5311. First through hole; 5312. Rectangular slide groove; 532. Sliding block; 5321. Second through hole; 5 33. Extension slider; 534. Tension spring; 535. Rotating rod; 5351. Limiting ring; 5352. Thread; 536. Rectangular slider; 5361. Push plate; 537. Locking block; 538. Compression spring; 539. Rectangular limiting frame; 54. Right-angle swing arm; 55. First pin; 56. Obtuse-angle swing arm; 57. Second pin; 58. Support roller; 59. Third pin; 6. Eccentric adjusting wheel; 7. Support plate; 8. Thin-walled material; 9. Locking component. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] like Figures 1 to 9 As shown, a mis-traffic prevention device for transporting inner packaging materials includes: a mounting base 1, a solenoid valve 2, a mounting block 3, a cylinder 4, a mis-traffic prevention component 5, an eccentric adjusting wheel 6, a support plate 7, and thin-walled material 8.

[0042] A solenoid valve 2 is fixedly installed at the bottom of the mounting base 1, and a mounting block 3 is fixedly installed at the top of the mounting base 1. A cylinder 4 is movably installed on the mounting block 3, and one end of the cylinder 4 is connected to the solenoid valve 2. An anti-misalignment component 5 is fixedly installed at the top of the mounting base 1 through a locking member 9. The anti-misalignment component 5 is hinged to the end of the cylinder 4 away from the solenoid valve 2. A plurality of support plates 7 are fixedly installed on one side of the eccentric adjusting wheel 6. Thin-walled material 8 is placed on the plurality of support plates 7, and the side of the anti-misalignment component 5 away from the cylinder 4 is in contact with the thin-walled material 8.

[0043] The error prevention component 5 supports the thin-walled material 8, and the solenoid valve 2 controls the force on the cylinder 4 and the error prevention component 5 to drive the error prevention component 5 away from the thin-walled material 8.

[0044] Mounting base 1 serves as the overall load-bearing foundation of the device. It is integrally formed using high-strength alloy material, and its bottom end face has pre-drilled standardized mounting screw holes. It can be rigidly fixed to the production line frame 51 through a bolt group. The solenoid valve 2 is electrically connected to the production line's overall control system through a waterproof wiring harness, and can receive control commands to achieve rapid switching between on and off states. Mounting block 3 provides basic support for the stable assembly and movement of cylinder 4.

[0045] The air inlet of cylinder 4 is sealed to the air outlet of solenoid valve 2 through a high-pressure hose. Solenoid valve 2 can realize the opening and closing of the air passage and pressure regulation of cylinder 4 according to the control system command, thereby accurately controlling the extension and retraction stroke and output thrust of piston rod of cylinder 4. The eccentric adjusting wheel 6 can adjust the gap between multiple support plates 7.

[0046] During the basic operation phase of the device, the support roller 58 of the error prevention component 5 always maintains stable support contact with the thin-walled material 8, which can effectively prevent the material from tilting, shifting or other misalignment faults during transportation. When the production line detects a fault in the upstream process, the control system will immediately send a command to the solenoid valve 2. After receiving the command, the solenoid valve 2 will quickly switch to the power-off reset state, thereby controlling the cylinder 4 to depressurize and driving the piston rod to retract through the reset spring 41, which will drive the support roller 58 of the error prevention component 5 to quickly move away from the thin-walled material 8.

[0047] When an abnormal stop command is received, the support roller 58 is disengaged from the thin-walled material 8, thereby removing the support force on the thin-walled material 8. Due to the loss of this support force, the thin-walled material 8 changes its motion state under the influence of gravity, friction or its own flexibility, and achieves natural stagnation; and a safe distance of more than 2mm is maintained between them.

[0048] When a command to resume normal operation is received, the support roller 58 is controlled to contact the thin-walled material 8, providing support force to the thin-walled material 8 again and resuming conveying.

[0049] This invention abandons the traditional forced blocking method and adopts the braking principle of "removing support force". This allows the material to naturally stop after losing support force, relying on its own characteristics (such as gravity and flexibility), fundamentally preventing damage to thin-walled materials 8 caused by compression and collision. Furthermore, the braking action is the disengagement movement of the support roller 58, resulting in low resistance, short stroke, and fast response speed (less than 0.3 seconds), while avoiding rigid impact and being equipment-friendly.

[0050] By adjusting the position and supporting force of the support rollers 58, it can flexibly adapt to thin-walled materials 8 of different specifications. Especially for extremely fragile materials with a thickness of 0.5mm to 1mm, it can provide precise and non-destructive error prevention protection.

[0051] This invention is particularly suitable for thin-walled materials 8 with a thickness of 0.5mm to 1mm, and can effectively solve the error prevention problem in their automatic conveying process. Tests have shown that, under the condition that the speed of the thin-walled material 8 is ≤1.0m / s, the time from receiving the stop command to the complete stop of the thin-walled material 8 does not exceed 0.4 seconds, and the surface of the thin-walled material 8 shows no damage.

[0052] like Figures 2 to 4 As shown, the error prevention component 5 includes a frame 51, a sliding rod 52, a telescopic module 53, a right-angle swing arm 54, a first pin 55, an obtuse-angle swing arm 56, a second pin 57, a support roller 58, and a third pin 59.

[0053] A sliding rod 52 is slidably mounted on the frame 51, and a telescopic module 53 is fixedly mounted on the frame 51, with the telescopic module 53 located above the sliding rod 52. The right-angle swing arm 54 is hinged to one end of the sliding rod 52 and the telescopic module 53 respectively via two first pins 55. The obtuse-angle swing arm 56 is hinged to the other end of the sliding rod 52 and the telescopic module 53 respectively via two second pins 57. The end of the obtuse-angle swing arm 56 away from the sliding rod 52 is hinged to a support roller 58 via a third pin 59.

[0054] The sliding rod 52 is embedded in the rectangular slide groove 5312 of the frame 51, and can slide back and forth in a straight line without jamming along the rectangular slide groove 5312, providing the core linear motion trajectory for the attitude adjustment of the entire error prevention component 5; the telescopic module 53 is installed directly above the sliding rod 52, and the fixing block 531 on the telescopic module 53 is fixedly installed on the frame 51, while the sliding block 532 is slidably installed on the frame 51.

[0055] The right-angle swing arm 54 is hinged to the sliding rod 52 and the telescopic module 53 respectively. It drives the sliding rod 52 to slide on the frame 51, thereby controlling the support roller 58 to disengage from the thin-walled material 8. The obtuse-angle swing arm 56 is similar to the right-angle swing arm 54, and together with the sliding rod 52 and the telescopic module 53, it forms a parallelogram-like structure, thereby driving the support roller 58 to move, realizing the integration and transmission of multi-dimensional power.

[0056] The support roller 58 is the direct contact component between the anti-misalignment component 5 and the thin-walled material 8. Its wheel body is made of polyurethane elastomer, which has good wear resistance and can achieve flexible contact with the thin-walled material 8, avoiding material indentation or scratches caused by hard contact. The support roller 58 is hinged to the end of the obtuse-angled swing arm 56 away from the sliding rod 52 by the third pin 59, realizing the rotational support and axial limit of the support roller 58, ensuring that the roller does not move radially during operation. When a front-end fault is triggered, the power is transmitted to the sliding rod 52 through the right-angled swing arm 54 and the first pin 55. The linear sliding of the sliding rod 52 then drives the obtuse-angled swing arm 56 to deflect through the second pin 57, and finally drives the support roller 58 connected by the third pin 59 to complete the attitude adjustment. When the material pressure is overloaded, the telescopic module 53 will directly trigger the deflection of the obtuse-angled swing arm 56 to realize the emergency separation of the support roller 58 from the material.

[0057] like Figures 6 to 8 As shown, the telescopic module 53 includes a fixed block 531, a sliding block 532, an extension slider 533, a tension spring 534, a rotating rod 535, a rectangular slider 536, a locking block 537, a compression spring 538, and a rectangular limiting frame 539.

[0058] The fixed block 531 has a rectangular groove 5312 at one end, and a sliding block 532 is slidably mounted on one end of the fixed block 531. An extension slider 533 is provided at the end of the sliding block 532 near the fixed block 531, and the extension slider 533 is located within the rectangular groove 5312. A tension spring 534 is fixedly installed within the rectangular groove 5312, and both ends of the tension spring 534 are fixedly connected to the end of the extension slider 533 and the inner wall of the rectangular groove 5312, respectively. The rotating rod 535 is rotatably mounted inside the fixed block 531, and both ends pass through both sides of the fixed block 531. The rotating rod 535 is located below the rectangular groove 5312, and both ends of the rotating rod 535... Rectangular sliders 536 are slidably installed on each of the two rectangular sliders 536, and push plates 5361 are respectively provided on the two rectangular sliders 536. The two locking blocks 537 are slidably installed on both sides of the fixing block 531, and the two locking blocks 537 respectively pass through the rectangular slide groove 5312. The outer sides of the two locking blocks 537 are respectively fixedly connected to one end of the two compression springs 538, and the other ends of the two compression springs 538 are respectively fixedly connected to the inner side of the two push plates 5361. Rectangular limiting frames 539 are fixedly installed on both sides of the fixing block 531, and the rotating rods 535, rectangular sliders 536, locking blocks 537 and compression springs 538 on both sides of the fixing block 531 are all located within the rectangular limiting frames 539.

[0059] The telescopic module 53 is hinged at both ends with a right-angle swing arm 54 and an obtuse-angle swing arm 56, respectively. The fixed block 531 is the basic bearing base of the telescopic module 53. The rotating rod 535 is located directly below the rectangular slide groove 5312 and maintains a strict vertical spatial relationship with the rectangular slide groove 5312. At the same time, the two side walls of the fixed block 531 are reserved with sliding through holes for the locking block 537. The through holes are connected to the rectangular slide groove 5312, providing a structural basis for the limiting action of the locking block 537.

[0060] The external dimensions of the extension slider 533 are adapted to the rectangular slide groove 5312 of the fixed block 531, and it can be completely embedded in the rectangular slide groove 5312 for reciprocating linear sliding. Its end face facing the inside of the rectangular slide groove 5312 is also connected to the tension spring 534. The tension spring 534 is the core power source for driving the slider 532 to reset after the telescopic module 53 is triggered. It is made of high elastic modulus stainless steel wire with precision winding. The tension spring 534 is built into the rectangular slide groove 5312 of the fixed block 531 and does not contact external parts. Under normal conditions, it is in a stretched pre-tightened state, which reserves sufficient elastic potential energy for subsequent rapid reset.

[0061] The rotating rod 535 is an adjustment transmission component for the trigger threshold of the telescopic module 53. Both ends pass through the left and right side walls of the fixed block 531 and extend outwards, facilitating the connection of an external adjustment knob 511. As the rotating rod 535 rotates forward and backward, the rectangular slider 536 slides synchronously inward or outward along the axis of the rotating rod 535. This, in turn, compresses the compression spring 538 via the push plate 5361, storing elastic potential energy. The force driving the compression spring 538 to continue compressing is the threshold at which the support roller 58 and the thin-walled material 8 disengage. The trigger threshold is changed by adjusting the compression distance of the compression spring 538. The rectangular limiting frame 539 restricts the circumferential rotation of the rectangular slider 536 and prevents the compression spring 538 from shifting during compression.

[0062] like Figures 6 to 8 As shown, the fixed block 531 has a first through hole 5311 at one end away from the sliding block 532, and the first through hole 5311 is hinged to the right-angle swing arm 54 through the first pin 55. The sliding block 532 has a second through hole 5321 at one end away from the fixed block 531, and the second through hole 5321 is hinged to the obtuse-angle swing arm 56 through the second pin 57.

[0063] The first through hole 5311 serves as the hinge fulcrum between the telescopic module 53 and the right-angle swing arm 54. It achieves coaxial hinge by connecting the first pin 55 to the hinge hole of the right-angle swing arm 54. The second through hole 5321 achieves hinge by connecting the second pin 57 to the corresponding hinge hole of the obtuse-angle swing arm 56. The second pin 57 and the first pin 55 are standardized connectors of the same specification, and the hinge is equipped with an anti-loosening snap ring and a dustproof sealing ring.

[0064] like Figure 6 and Figure 8 As shown, the rotating rod 535 is provided with limit rings 5351 at both ends. The outer ends of the rotating rod 535 located on both sides of the fixed block 531 are respectively provided with threads 5352, and the spiral directions of the threads 5352 at both ends of the rotating rod 535 are opposite. The threads 5352 on both sides of the rotating rod 535 are respectively located inside the limit rings 5351 on both sides.

[0065] The limiting ring 5351 rotates synchronously with the rotating rod 535. Its function is to axially limit the rectangular slider 536 during the sliding process and prevent the slider from disengaging from the rotating rod 535. The spiral directions of the threads 5352 at both ends of the rotating rod 535 are symmetrically distributed in opposite directions. This is so that during the rotation of the rotating rod 535, the rectangular sliders 536 at both ends can move inward or outward synchronously, thereby compressing or releasing the compression spring 538 and changing the threshold at which the support roller 58 and the thin-walled material 8 disengage.

[0066] like Figures 2 to 4As shown, a return spring 41 is provided at one end of the cylinder 4, and a connecting ring 42 is provided at the end of the cylinder 4 away from the solenoid valve 2. The connecting ring 42 is hinged to the end of the right-angle swing arm 54 through a fourth pin 43.

[0067] When the solenoid valve 2 is de-energized and pressure is released, the return spring 41 can quickly release its elastic potential energy, pushing the piston rod of the cylinder 4 to perform a reset movement. The power is transmitted to the sliding rod 52 through the right-angle swing arm 54 and the first pin 55. The linear sliding of the sliding rod 52 then drives the obtuse-angle swing arm 56 to deflect through the second pin 57, ultimately driving the support roller 58 connected to the third pin 59 to complete the attitude adjustment, so that the support roller 58 and the thin-walled material 8 are separated from each other. When the material pressure is overloaded, the telescopic module 53 will directly trigger the obtuse-angle swing arm 56 to deflect, realizing the emergency separation of the support roller 58 from the material.

[0068] like Figure 3 , Figure 5 and Figure 9 As shown, a knob 511 is provided on one long side of the frame 51, and the knob 511 is fixedly connected to one end of the rotating rod 535. A rectangular groove 512 is provided on one short side of the frame 51, and the rectangular groove 512 is slidably engaged with the sliding rod 52. A rectangular groove 513 is provided on the top of the frame 51, and the rectangular groove 513 is engaged with the telescopic module 53. Fixed grooves 514 are provided on both sides of the rectangular groove 513, and the fixed grooves 514 are engaged with the rectangular limiting frame 539.

[0069] The knob 511 is injection molded from engineering plastic and stainless steel inserts. Rotating the knob 511 in either the forward or reverse direction directly drives the rotating rod 535 to rotate synchronously, thereby adjusting the trigger threshold of the telescopic module 53. A scale is added to the end of the knob 511 for precise threshold adjustment. The rectangular groove 512 provides stable guidance for the linear sliding of the sliding rod 52 and also restricts its circumferential rotation. The rectangular recess 513 is used to install the telescopic module 53, while the fixing groove 514 is used to install the rectangular limiting frame 539 and restricts its movement.

[0070] like Figure 8 As shown, the end of the card block 537 located inside the rectangular slide groove 5312 has an arc-shaped structure.

[0071] When the extension slider 533 slides into the rectangular groove 5312 under the thrust of the obtuse-angled swing arm 56, the axial thrust of the extension slider 533 can be smoothly converted into a radial component force that drives the locking block 537 to move outward through the guiding effect of the arc structure of the locking block 537. This triggers the support roller 58 and the thin-walled material 8 to disengage. At the same time, the smooth arc surface can reduce the contact friction with the extension slider 533, reduce the wear rate of both, and extend the service life of the locking block 537 and the extension slider 533.

[0072] like Figure 6 and Figure 8 As shown, the width between the inner walls of the two sides of the rectangular limiting frame 539 is equal to the width of the rectangular slider 536 and the push plate 5361, and the diameter of the compression spring 538 is equal to the width between the inner walls of the two sides of the rectangular limiting frame 539.

[0073] The width between the inner walls of the two sides of the rectangular limiting frame 539 is completely consistent with the overall width of the rectangular slider 536 and the push plate 5361 combined. This is to limit the circumferential rotation of the rectangular slider 536 and the push plate 5361, ensuring that the push plate 5361 is always precisely aligned with the force-bearing end face of the compression spring 538, thus guaranteeing the stability and accuracy of force transmission. The diameter of the compression spring 538 is also precisely matched with the width between the inner walls of the two sides of the rectangular limiting frame 539. This ensures that the compression spring 538 maintains a stable axial extension and contraction state inside the rectangular limiting frame 539. It prevents lateral movement due to an excessively small diameter, which could cause the spring to bend and fail, and also prevents excessively large diameters from causing compression friction with the inner wall of the rectangular limiting frame 539, affecting its elastic performance. This ensures that the compression spring 538, under the push of the rectangular slider 536, can transmit a stable preload to the locking block 537, guaranteeing the accuracy and consistency of the trigger threshold of the telescopic module 53.

[0074] A method for preventing errors during the transportation of packaging inner liner materials includes the following steps:

[0075] S1: When the thin-walled material 8 fails to unfold during transport, too much thin-walled material 8 will fold into the space between the support plate 7 and the support roller 58. The support roller 58 will be subjected to excessive force when it comes into contact with the thin-walled material 8. The obtuse angle swing arm 56 will rotate around the second pin 57 on the sliding rod 52 as the origin, pushing the extended slider 533 on the sliding block 532 to slide into the rectangular groove 5312 inside the fixed block 531.

[0076] S2: The clamping blocks 537 on both sides of the inner wall of the rectangular slide groove 5312 move outward, pushing the compression spring 538 to compress, and the extended slider 533 is released from the limit.

[0077] S3: The tension spring 534 uses its elastic potential energy to pull the extension slider 533 and the sliding block 532 to continue moving, triggering the support roller 58 to disengage from the thin-walled material 8.

[0078] S4: When a fault occurs at the front of the production line, the control system immediately controls the solenoid valve 2 to de-energize and reset, so that the cylinder 4 is depressurized.

[0079] S5: The return spring 41 on the cylinder 4 pulls the cylinder 4 to reset, and pulls the right-angle swing arm 54 to rotate around the first pin 55 on the telescopic module 53 as the origin through the connecting ring 42, and pushes the sliding rod 52 to slide on the frame 51. The sliding rod 52 drives the obtuse-angle swing arm 56 to rotate around the second pin 57 on the telescopic module 53 as the origin, triggering the support roller 58 to disengage from the thin-walled material 8.

[0080] The working principle of this invention is as follows: First, a trigger threshold needs to be preset based on the pressure between the support roller 58 and the thin-walled material 8. By rotating the knob 511 on one side of the rotating frame 51, the knob 511 drives the rotating rod 535 to rotate. During the rotation of the rotating rod 535, the rectangular sliders 536 at both ends of the rotating rod 535 will move inward along the axis of the rotating rod 535, and drive the push plate 5361 to move inward together. The push plates 5361 on both sides will push the compression spring 538 to compress, thereby increasing the elastic potential energy of the compression spring 538. Meanwhile, the locking block 537 is always in close contact with the outer wall of the fixing block 531, thereby increasing the trigger threshold.

[0081] When the thin-walled material 8 malfunctions during transport, too much of the thin-walled material 8 will fold into the space between the support plate 7 and the support roller 58, increasing the contact force between the support roller 58 and the thin-walled material 8. When the pressure exceeds the threshold of the elastic potential energy of the compression spring 538, the obtuse-angled swing arm 56 will rotate around the second pin 57 on the sliding rod 52 as the origin, pushing the extension slider 533 on the sliding block 532 to slide into the rectangular groove 5312 inside the fixed block 531; and squeezing the arc-shaped structure of the two side blocks 537 on the inner wall of the rectangular groove 5312, thereby causing the two side blocks 537 to move outward. The blocks 537 compress the compression spring 538, and the extension slider 533 is released from its limit. Under the action of the elastic potential energy of the tension spring 534, the extension slider 533 and the sliding block 532 are pulled to continue sliding inward, thereby causing the support roller 58 to disengage from the thin-walled material 8.

[0082] When a malfunction occurs at the front of the production line, the control system immediately de-energizes and resets the solenoid valve 2, depressurizing the cylinder 4. The reset spring 41 on the cylinder 4 pulls the cylinder 4 to reset, and through the connecting ring 42, pulls the right-angle swing arm 54 to rotate around the first pin 55 on the telescopic module 53 as the origin, pushing the sliding rod 52 to slide on the frame 51. The sliding rod 52 drives the obtuse-angle swing arm 56 to rotate around the second pin 57 on the telescopic module 53 as the origin, causing the support roller 58 to disengage from the thin-walled material 8. During this process, the telescopic module 53 will not be triggered.

[0083] Furthermore, when the support roller 58 is driven by the cylinder 4 to contact the thin-walled material 8, if the cylinder 4 extends too far, the contact pressure between the support roller 58 and the thin-walled material 8 will be too high, thereby triggering the telescopic module 53 to start, causing the support roller 58 to disengage from the thin-walled material 8, thus further preventing the thin-walled material 8 from being damaged due to excessive pressure.

[0084] Although the present invention has been described above with reference to embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, features in the embodiments disclosed herein can be combined with each other in any manner, provided there is no structural conflict. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein.

Claims

1. A device for preventing errors in the transport of inner packaging materials, characterized in that, include: Mounting base (1), solenoid valve (2), mounting block (3), cylinder (4), anti-misalignment component (5), eccentric adjusting wheel (6), support plate (7) and thin-walled material (8); A solenoid valve (2) is fixedly installed at the bottom of the mounting base (1), and a mounting block (3) is fixedly installed at the top of the mounting base (1). A cylinder (4) is movably installed on the mounting block (3), and one end of the cylinder (4) is connected to the solenoid valve (2). An anti-error component (5) is fixedly installed at the top of the mounting base (1) through a locking member (9). The anti-error component (5) is hinged to the end of the cylinder (4) away from the solenoid valve (2). Multiple support plates (7) are fixedly installed on one side of the eccentric adjusting wheel (6). Thin-walled material (8) is placed on the multiple support plates (7), and the side of the anti-error component (5) away from the cylinder (4) is in contact with the thin-walled material (8). The anti-mistake component (5) supports the thin-walled material (8), and the cylinder (4) and the anti-mistake component (5) are subjected to force by the solenoid valve (2) to drive the anti-mistake component (5) away from the thin-walled material (8). The error prevention component (5) includes a frame (51), a sliding rod (52), a telescopic module (53), a right-angle swing arm (54), a first pin (55), an obtuse-angle swing arm (56), a second pin (57), a support roller (58), and a third pin (59). A sliding rod (52) is slidably mounted on the frame (51), and a telescopic module (53) is fixedly mounted on the frame (51). The telescopic module (53) is located above the sliding rod (52). The right-angle swing arm (54) is hinged to one end of the sliding rod (52) and the telescopic module (53) respectively through two first pins (55). The obtuse-angle swing arm (56) is hinged to the other end of the sliding rod (52) and the telescopic module (53) respectively through two second pins (57). The obtuse-angle swing arm (56) is hinged to a support roller (58) at the end away from the sliding rod (52) through a third pin (59). The telescopic module (53) includes a fixed block (531), a sliding block (532), an extension slider (533), a tension spring (534), a rotating rod (535), a rectangular slider (536), a locking block (537), a compression spring (538), and a rectangular limiting frame (539). A rectangular groove (5312) is provided at one end of the fixed block (531), and a sliding block (532) is slidably installed at one end of the fixed block (531). An extension slider (533) is provided at the end of the sliding block (532) near the fixed block (531), and the extension slider (533) is located in the rectangular groove (5312). A tension spring (534) is fixedly installed in the rectangular groove (5312), and the two ends of the tension spring (534) are fixedly connected to the end of the extension slider (533) and the inner wall of the rectangular groove (5312), respectively. A rotating rod (535) is rotatably installed inside the fixed block (531), and its two ends pass through both sides of the fixed block (531). The rotating rod (535) is located below the rectangular groove (5312), and the two ends of the rotating rod (535) are... Rectangular sliders (536) are slidably installed on each end of the fixed block (531). Push plates (5361) are respectively provided on the two rectangular sliders (536). Card blocks (537) are slidably installed on both sides of the fixed block (531), and the two card blocks (537) pass through the rectangular slide groove (5312). The outer sides of the two card blocks (537) are fixedly connected to one end of the two compression springs (538), and the other ends of the two compression springs (538) are fixedly connected to the inner side of the two push plates (5361). Rectangular limiting frames (539) are fixedly installed on both sides of the fixed block (531), and the rotating rods (535), rectangular sliders (536), card blocks (537) and compression springs (538) on both sides of the fixed block (531) are all located inside the rectangular limiting frames (539). Limiting rings (5351) are provided at both ends of the rotating rod (535). Threads (5352) are provided on the outer ends of the rotating rod (535) on both sides of the fixed block (531). The spiral directions of the threads (5352) at both ends of the rotating rod (535) are opposite. The threads (5352) on both sides of the rotating rod (535) are located inside the limiting rings (5351) on both sides. A knob (511) is provided on one side of the long side of the frame (51), and the knob (511) is fixedly connected to one end of the rotating rod (535). A rectangular groove (512) is provided on one side of the short side of the frame (51), and the rectangular groove (512) is slidably engaged with the sliding rod (52). A rectangular groove (513) is provided on the top of the frame (51), and the rectangular groove (513) is engaged with the telescopic module (53). Fixed grooves (514) are provided on both sides of the rectangular groove (513), and the fixed grooves (514) are engaged with the rectangular limiting frame (539).

2. The packaging liner material transport error prevention device as described in claim 1, characterized in that: The fixed block (531) has a first through hole (5311) at one end away from the sliding block (532), and the first through hole (5311) is hinged to the right-angle swing arm (54) through the first pin (55). The sliding block (532) has a second through hole (5321) at one end away from the fixed block (531), and the second through hole (5321) is hinged to the obtuse-angle swing arm (56) through the second pin (57).

3. The packaging liner material transport error prevention device as described in claim 1, characterized in that: A return spring (41) is provided at one end of the cylinder (4), and a connecting ring (42) is provided at the end of the cylinder (4) away from the solenoid valve (2). The connecting ring (42) is hinged to the end of the right-angle swing arm (54) through a fourth pin (43).

4. The anti-misoperation device for transporting inner packaging materials as described in claim 1, characterized in that: The end of the card block (537) located inside the rectangular slide groove (5312) has an arc-shaped structure.

5. The anti-misoperation device for transporting inner packaging materials as described in claim 1, characterized in that: The width between the inner walls of the two sides of the rectangular limiting frame (539) is equal to the width between the rectangular slider (536) and the push plate (5361), and the diameter of the compression spring (538) is equal to the width between the inner walls of the two sides of the rectangular limiting frame (539).

6. A method for preventing errors in the transportation of inner packaging materials, employing the error-prevention device for transporting inner packaging materials as described in any one of claims 1 to 5, characterized in that, Includes the following steps: S1: When the thin-walled material (8) is unpacked and transported, too much thin-walled material (8) will fold into the space between the support plate (7) and the support roller (58). The support roller (58) will be in contact with the thin-walled material (8) and the force will be too great. The obtuse angle swing arm (56) will rotate with the second pin (57) on the sliding rod (52) as the origin, pushing the extended slider (533) on the sliding block (532) to slide into the rectangular groove (5312) inside the fixed block (531). S2: The two side blocks (537) on the inner wall of the extruded rectangular slide groove (5312) move outward, pushing the compression spring (538) to compress, and the extended slider (533) is released from the limit; S3: The tension spring (534) uses its elastic potential energy to pull the extension slider (533) and the sliding block (532) to continue moving, triggering the support roller (58) to disengage from the thin-walled material (8); S4: When a fault occurs at the front of the production line, the control system immediately controls the solenoid valve (2) to de-energize and reset, so that the cylinder (4) is depressurized; S5: The reset spring (41) on the cylinder (4) pulls the cylinder (4) to reset, and pulls the right-angle swing arm (54) to rotate around the first pin (55) on the telescopic module (53) as the origin through the connecting ring (42), and pushes the sliding rod (52) to slide on the frame (51). The sliding rod (52) drives the obtuse-angle swing arm (56) to rotate around the second pin (57) on the telescopic module (53) as the origin, triggering the support roller (58) to disengage from the thin-walled material (8).

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