Bilateral gradient included angle stripping equipment for waste cigarette filter rod bobbin paper

Abstract

The invention discloses double-side gradient included angle stripping equipment for waste cigarette filter rod bobbin paper, and relates to the technical field of cigarette filter rod bobbin paper stripping. The second-stage clamping and conveying assembly is located on one side of the first-stage clamping and conveying assembly; a third-stage clamping and conveying assembly; the second-stage clamping and conveying assembly and the third-stage clamping and conveying assembly are sequentially arranged in the conveying direction of the first-stage clamping and conveying assembly. After the cigarette filter stick passes through the second-stage clamping and conveying assembly, the other end of the cigarette filter stick can be clamped by the third-stage clamping and conveying assembly; the second-stage clamping and conveying assembly and the first-stage clamping and conveying assembly are gradually away from each other in the opposite directions in the conveying direction, and the third-stage clamping and conveying assembly and the first-stage clamping and conveying assembly are gradually away from each other in the opposite directions in the conveying direction. By the adoption of the scheme, bobbin paper and tows can be separated in a mechanical bobbin paper stripping mode, the risks that a pump / separator is blocked by shredded paper, tows are polluted and the like are eliminated from the source, and continuous operation of rear-end equipment and the quality of regenerated tows are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of paper peeling technology for cigarette filter rods, and specifically to a double-sided gradient angle peeling device for waste cigarette filter rod paper. Background Technology

[0002] In the production of cigarette filter rods, a large number of waste filter rods are generated due to quality defects or equipment failures. The core component, cellulose diacetate bundles, has recycling value, but the outer paper layer must be peeled off first.

[0003] In existing recycling technologies, waste filter rods can be directly processed by "shredding and dissolving → filtration / centrifugation to separate the paper": that is, the waste filter rods are first shredded, then the fiber bundles are dissolved by solvent, and finally the insoluble paper fragments are separated by filtration or centrifugation.

[0004] However, the above solution has the following drawbacks:

[0005] (1) Incomplete separation and high risk of equipment jamming: The shredded paper fragments are irregular in size, which can easily clog the filter screen during filtration. During centrifugal separation, the accumulation of paper fragments can also cause equipment jamming, increasing the frequency of downtime maintenance and raising production costs.

[0006] (2) The quality of the filament bundle is contaminated: If a small amount of shredded paper is not separated, it will enter the downstream recycling process with the filament bundle, causing the impurity content of the filament bundle to exceed the standard and affecting the quality of the finished product.

[0007] (3) High energy consumption and environmental burden: The dissolution process requires a large amount of solvent, and solvent recovery and wastewater treatment require additional investment, which increases energy consumption and environmental treatment costs.

[0008] Therefore, there is an urgent need for a device that can quickly separate the tobacco filter rod from the filter paper. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention aims to provide a double-sided gradual angle peeling device for waste cigarette filter rod discs. This solution can separate the discs and fiber bundles by mechanically peeling them, eliminating the risks of shredded paper jamming the pump / separator and contaminating the fiber bundles from the source, thus ensuring continuous operation of downstream equipment and the quality of regenerated fiber bundles.

[0010] This invention is achieved through the following technical solution:

[0011] A double-sided gradient angle peeling device for waste cigarette filter rod paper includes:

[0012] A primary clamping and conveying assembly is used to clamp one end of a cigarette filter rod;

[0013] A secondary clamping and conveying assembly is located on one side of the primary clamping and conveying assembly and is used to clamp the other end of the cigarette filter rod;

[0014] A three-stage clamping and conveying assembly is located on one side of the first-stage clamping and conveying assembly, and the second-stage and third-stage clamping and conveying assemblies are arranged sequentially along the conveying direction of the first-stage clamping and conveying assembly; after the tobacco filter rod passes through the second-stage clamping and conveying assembly, its other end can be clamped by the third-stage clamping and conveying assembly;

[0015] Among them, the secondary clamping and conveying assembly and the primary clamping and conveying assembly, and the tertiary clamping and conveying assembly and the primary clamping and conveying assembly, gradually move away from each other along the conveying direction;

[0016] The clamping forces of the primary clamping and conveying assembly, the secondary clamping and conveying assembly, and the tertiary clamping and conveying assembly are all adjustable; and when the cigarette filter rod is clamped by the primary clamping and conveying assembly and the secondary clamping and conveying assembly, the clamping force of the primary clamping and conveying assembly is greater than that of the secondary clamping and conveying assembly, so that the paper wrapped on the other end of the cigarette filter rod is gradually peeled off through the conveying of the secondary clamping and conveying assembly.

[0017] When the cigarette filter rod is held by the primary clamping and conveying assembly and the tertiary clamping and conveying assembly, the clamping force of the primary clamping and conveying assembly is less than that of the tertiary clamping and conveying assembly, so that the remaining paper on the cigarette filter rod is gradually peeled off through the conveying of the primary clamping and conveying assembly.

[0018] Compared to existing technologies that use shredding and dissolving methods, resulting in incomplete separation of the filter paper and easy contamination of the subsequent fiber bundle quality, this invention provides a double-sided gradually tapering angle peeling device for waste cigarette filter paper. This solution mechanically peels the filter paper to separate the filter paper and fiber bundle, eliminating the risks of shredded paper jamming the pump / separator and contaminating the fiber bundle at the source, ensuring continuous operation of downstream equipment and the quality of regenerated fiber bundle. Specifically, the solution includes a primary clamping and conveying assembly, a secondary clamping and conveying assembly, and a tertiary clamping and conveying assembly. These three assemblies can be configured using methods such as clamping heads that move along a path, or two belts that clamp and convey synchronously, etc., as long as the clamping force is adjustable. Furthermore, the preferred outward spreading angle between them is a linear inclination, preferably 10°.

[0019] In practical operation, the two ends of the cigarette filter rod are first fed into the inlet of the primary clamping and conveying assembly and the inlet of the secondary clamping and conveying assembly, respectively. The primary and secondary clamping and conveying assemblies then clamp and convey the filter rod side-by-side, holding it between them. At this point, the primary clamping and conveying assembly exerts a greater clamping force, tightly holding the paper and fiber bundle at the end of the filter rod. The secondary clamping and conveying assembly, however, has a smaller clamping force, capable of clamping the outer paper but insufficient to completely clamp the inner fiber bundle. Due to the different conveying mechanisms of the primary and secondary clamping and conveying assemblies... During the process, the components gradually move away from each other, thus applying an axial pulling force to the filter rod until the adhesion between the paper and the fiber bundle is broken, allowing the paper to be torn from the middle. Secondly, because the clamping force of the secondary clamping and conveying component is relatively small, and it can apply a large frictional resistance to the paper through the rubber clamping surface, the secondary clamping and conveying component can gradually pull out the broken paper from the filter rod, that is, tear off and peel off part of the paper on the filter rod, and discharge the peeled paper from the outlet of the secondary clamping and conveying component. At this time, the remaining filter rod is always held by the primary clamping and conveying component.

[0020] The remaining tobacco filter rods that have been partially peeled off continue to be conveyed forward by the primary clamping and conveying assembly until the peeled end of the filter rod enters the inlet of the tertiary clamping and conveying assembly, where a second peeling begins. At this point, due to the greater clamping force of the tertiary clamping and conveying assembly, the exposed filaments at the other end of the filter rod are held firmly. Meanwhile, the clamping force of the primary clamping and conveying assembly is reduced to approximately the same as that of the secondary clamping and conveying assembly, which can clamp the outer paper roll but is insufficient to completely clamp the inner filaments. As the primary and tertiary clamping and conveying assemblies gradually move away from each other during the conveying process, an axial pulling force is applied to the filter rod until the adhesion between the paper roll and the filaments is broken. Furthermore, the rubber clamping surfaces apply significant frictional resistance to the paper roll, allowing the primary clamping and conveying assembly to gradually pull out the remaining paper roll on the filter rod, thus completely peeling off the paper roll from the filaments. Subsequently, the peeled filaments are discharged by the tertiary clamping and conveying assembly, and the remaining peeled paper roll is discharged by the primary clamping and conveying assembly. The above solution allows for the complete separation of the paper roll and the filament bundle by mechanically peeling off the paper roll, ensuring continuous operation of downstream equipment and the quality of the recycled filament bundle.

[0021] Further optimization, as a specific structure for stable clamping and conveying, the first-level clamping and conveying assembly, the second-level clamping and conveying assembly, and the third-level clamping and conveying assembly all include upper and lower conveyor belts distributed vertically, and both the upper and lower conveyor belts include belts arranged in a circumferential direction;

[0022] The conveyor belts of the upper and lower conveyor belts form a clamping conveyor path between their opposing conveyor surfaces, thereby clamping the end of the cigarette filter rod within them. In this design, the upper and lower conveyor belts can be arranged in a T-shape or a triangular cyclic conveying pattern, with several pulleys arranged in a T-shape or triangle meshing with the inner surface of the belts for transmission; the inner surface of the belts is a toothed surface, and the outer surface is a plane for clamping.

[0023] For further optimization, to improve frictional resistance, the belt is made of rubber. Preferably, the belt is a polyester canvas core rubber belt with a width of 30mm.

[0024] For further optimization and to provide stable support, the primary, secondary, and tertiary clamping and conveying components all include side plate frames. The upper and lower conveyor belts also each include several pulleys, all fixed to the same side of the side plate frame. The belt is wound sequentially around these pulleys. In this design, the side plate frame stands on the ground, with its side serving as a mounting surface for mounting several pulleys. Each pulley includes a housing fixed to the mounting surface and a meshing wheel that rotates freely on the housing. The belt and the meshing wheel are driven by meshing. One of the meshing wheels on a pulley can be connected to the output of an external rotary motor, allowing the motor to drive the meshing wheel on that pulley to rotate. The other pulleys are driven components. In addition, the opposing conveyor belts of the upper and lower conveyor belts can clamp each other with a sufficiently long linear clamping distance. Since the two opposing conveyor belts are rubber belts and have sufficient friction and friction length, the lower conveyor belt can be driven to rotate synchronously through friction transmission by a single rotary motor.

[0025] To further optimize the belt conveyor and enable clamping force adjustment, the upper conveyor belt line includes several active tensioning pulleys, and the lower conveyor belt line includes several passive tensioning pulleys. Both the active and passive tensioning pulleys are arranged along the clamping and conveying path and mesh with the belt. The active and passive tensioning pulleys are staggered along the clamping and conveying path.

[0026] Several passive tensioning pulleys are fixed to the side plate frame; each active tensioning pulley is equipped with a lifting assembly, which is mounted on the side plate frame and used to drive the active tensioning pulley to rise and fall, thereby changing the clamping force between the opposing belts. In this design, two belts on the clamping and conveying path are tightly pressed together. The lower passive tensioning pulleys are fixedly mounted, while the upper active tensioning pulleys can be adjusted up and down to change the clamping force along the clamping and conveying path. The tensioning pulleys and belt pulleys have the same structure and can both mesh with the belts. Additionally, pressure sensors can be installed on the contact sidewalls of the passive or active tensioning pulleys to automatically detect pressure and achieve controllable clamping force. The clamping force is 0.2-0.6 MPa.

[0027] Further optimization, as a specific structure of a lifting assembly, the lifting assembly includes a bolt, a hinge plate, and an L-shaped fixing plate. The vertical plate of the L-shaped fixing plate is fixed to the side plate frame and is located above the hinge plate; one end of the bolt is threaded through the horizontal plate of the L-shaped fixing plate.

[0028] One end of the hinge plate is hinged to the side plate frame, and the other end of the hinge plate can rotate around one end of itself.

[0029] The active tensioning wheel is fixed to the other end of the hinge plate, and the downward movement of the bolt can push the other end of the hinge plate to rotate, thereby causing the active tensioning wheel to descend. In this design, one end of the hinge plate is hinged to the side plate frame and can rotate by being sleeved on a fixed shaft. Since the other end of the hinge plate is fixedly connected to the housing of the active tensioning wheel, the rotation of the other end of the hinge plate can drive the active tensioning wheel to move synchronously. When it is necessary to increase the pressure, the bolt is rotated to move it downward, thereby pushing the hinge plate downward through the lower end of the bolt, which in turn drives the active tensioning wheel downward, completing the adjustment. When it is necessary to decrease the pressure, the bolt is rotated to move it upward, and the compressed rubber belt can gradually rebound, thereby pushing the active tensioning wheel upward to reset.

[0030] Further optimization involves splitting the primary clamping conveyor assembly into two conveyor units, connected and transitioned, to allow for separate adjustment of different clamping forces, since the primary clamping conveyor assembly has two conveyor units sequentially along its own conveying direction, and each conveyor unit includes an upper conveyor belt and a lower conveyor belt; the two conveyor units cooperate with the secondary clamping conveyor assembly and the tertiary clamping conveyor assembly, respectively.

[0031] At both the outlet and inlet ends of the clamping conveying path of the conveying unit, two pulleys are provided, one above the other. A transition belt meshes between the upper pulley at the outlet end of the previous conveying unit and the upper pulley at the inlet end of the next conveying unit. A transition belt also meshes between the lower pulley at the outlet end of the previous conveying unit and the lower pulley at the inlet end of the next conveying unit.

[0032] A transition clamping conveying path is formed between the two transition belts; and the pulleys located at the outlet and inlet ends are equipped with synchronously rotating auxiliary meshing pulleys in a direction away from the side plate frame, with the transition belts meshing on the auxiliary meshing pulleys. In this scheme, the two conveying units are distributed sequentially along the conveying direction and are synchronously driven by the transition belts, so that the conveying speeds of the two are the same. The ends of the two adjacent and directly opposite pulleys extend inward, that is, in a direction away from the side plate frame, so that a longer meshing pulley can be placed on it, leaving space for the placement of the transition belts; in this way, when one end of the tobacco filter rod is output from the outlet of the first conveying unit, it can immediately enter the clamping conveying path between the two transition belts, and through the conveying of the transition belts, it enters the clamping conveying path of the second conveying unit again; with this arrangement, it is convenient to set different clamping forces in the two conveying units respectively. In addition, since the transition belt is located closer to the middle of the cigarette filter rod, it makes it easier to hold the cigarette filter rod in the center when holding it alone, thus preventing it from tilting up when holding only one end of the cigarette filter rod.

[0033] To further optimize the process and reduce the number of motors while maintaining the same conveying speed, one of the pulleys on the secondary clamping and conveying assembly is connected to the corresponding pulley on the primary clamping and conveying assembly via a first universal joint.

[0034] One of the pulleys on the three-stage clamping conveyor assembly and the corresponding pulley on the first-stage clamping conveyor assembly are connected by a second universal joint. In this design, the entire conveying device can be driven by only one rotary motor. When the motor drives the lower conveyor belt of the first-stage clamping conveyor assembly to rotate, the lower conveyor belt can drive the upper conveyor belt to rotate through rubber friction, and then drive the second-stage clamping conveyor assembly on one side through the first universal joint. Subsequently, it can drive the second conveyor unit behind it to rotate through the transition belt, and the second conveyor unit is then driven by the second universal joint to the third-stage clamping conveyor assembly on one side.

[0035] Further optimization involves guiding the other end of the cigarette filter rod into the inlet of the three-stage clamping and conveying assembly. A guide component is provided at the inlet of the clamping and conveying path of the three-stage clamping and conveying assembly. The guide component includes two guide plates distributed vertically, which gradually move away from the inlet of the clamping and conveying path. The two guide plates are used to guide the other end of the cigarette filter rod into the clamping and conveying path.

[0036] Further optimization, to achieve automated single-piece conveying of tobacco filter rods, also includes a single-piece lifting conveyor device. The top of the single-piece lifting conveyor device is also provided with an arc-shaped guide plate. The single-piece lifting conveyor device is used to lift and convey a single tobacco filter rod onto the arc-shaped guide plate. The arc-shaped guide plate allows the tobacco filter rod to slide down from top to bottom, so as to guide it to the inlet end position of the primary clamping conveyor assembly and the secondary clamping conveyor assembly.

[0037] The upper ends of each lifting plate and fixed plate in the single-piece lifting and conveying device are V-shaped, and the inner side of the upper V-shaped end of the lifting plate and the outer side of the upper V-shaped end of the fixed plate are connected to each other, so that the filter rod can automatically slide from the upper V-shaped end of the lifting plate into the upper V-shaped end of the fixed plate. In this solution, the single-piece lifting and conveying device is existing equipment, such as the existing literature with publication number CN212060279U, entitled "A Material Handling and Anti-jamming Device for In Vitro Diagnostic Instruments", which provides the same single-piece conveying function as this solution, so it will not be described again here. Secondly, the top of the single-piece lifting and conveying device is equipped with an arc-shaped guide plate. The outlet of the arc-shaped guide plate is close to and aligned with the inlet end of the clamping and conveying path. The lifted single filter rod can enter the arc-shaped guide plate and automatically slide down under its own gravity, and finally be guided into the clamping and conveying path. In addition, the groove formed at the upper end of the V-shape facilitates the entry of a single cigarette filter rod, which then slides down the lower inclined plate of the groove into the next V-shaped groove. The included angle of the V-shaped groove is preferably 90°, the depth is 15mm, the spacing is 20mm, it is suitable for filter rods with a diameter of 7.8-8.0mm, and it has anti-slip ridges.

[0038] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0039] 1. The present invention provides a double-sided gradual angle peeling device for waste cigarette filter rod discs. With this solution, the disc paper is completely separated, eliminating downstream risks: through mechanical peeling with "double-sided belt angle expansion", the disc paper is separated from the fiber bundle as a whole sheet (rather than being shredded), eliminating the risk of shredded paper jamming the pump / separator and contaminating the fiber bundle from the source, ensuring the continuous operation of downstream equipment and the quality of regenerated fiber bundle.

[0040] 2. This invention provides a double-sided gradual angle peeling device for waste cigarette filter rod paper. This solution simplifies the waste filter rod recycling process through mechanical peeling via a belt, reducing energy consumption and environmental burden. It eliminates the need for dissolving, filtering / centrifuging, and other processes, reducing solvent consumption and wastewater / residue treatment costs, achieving a low-carbon recycling mode of "physical peeling." It also ensures the high efficiency and stability of the waste filter rod peeling process, providing high-quality raw materials for subsequent tow regeneration. Because the paper is completely peeled off, the downstream recycling equipment does not need to handle shredded paper, reducing the probability of equipment jamming and indirectly improving production efficiency.

[0041] 3. The present invention provides a double-sided gradual angle peeling device for waste cigarette filter rod paper. With this solution, only one motor can be used as the power source for the entire conveyor line, without the need for an additional power source input. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0043] Figure 1 This is an external schematic diagram of the double-sided gradient angle peeling device for waste cigarette filter rod disc paper provided by the present invention.

[0044] Figure 2 A top view of the double-sided gradient angle peeling device for waste cigarette filter rod paper provided by the present invention;

[0045] Figure 3 A schematic diagram of the inner side of the primary clamping and conveying assembly provided by the present invention;

[0046] Figure 4 A schematic diagram of the inner side of the secondary clamping and conveying assembly provided by the present invention;

[0047] Figure 5 A schematic diagram of the inner side of the three-stage clamping and conveying assembly provided by the present invention;

[0048] Figure 6 This is a schematic diagram of the lifting assembly provided by the present invention;

[0049] Figure 7 This is a simplified diagram of the single-column lifting and conveying device provided by the present invention.

[0050] The attached diagram shows the markings and corresponding component names:

[0051] 1- Primary clamping and conveying assembly, 2- Secondary clamping and conveying assembly, 3- Tertiary clamping and conveying assembly, 4- Filter rod for tobacco, 5- Upper conveyor belt, 501- Active tensioning wheel, 502- Lifting assembly, 5021- Bolt, 5022- Hinge plate, 5023- L-shaped fixing plate, 6- Lower conveyor belt, 601- Passive tensioning wheel, 7- Single lifting conveyor device, 701- Arc-shaped guide plate, 702- Lifting plate, 703- Fixing plate, 8- Pulley, 9- Side plate frame, 10- Transition belt, 11- Secondary meshing wheel, 12- First universal joint, 13- Second universal joint, 14- Guide plate, 15- Rotary motor. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0053] Example: This example provides a double-sided gradient angle peeling device for waste cigarette filter rod discs, such as... Figures 1-7 As shown, it includes:

[0054] A primary clamping and conveying assembly 1 is used to clamp one end of the cigarette filter rod 4;

[0055] The secondary clamping and conveying assembly 2 is located on one side of the primary clamping and conveying assembly 1 and is used to clamp the other end of the cigarette filter rod 4;

[0056] The three-stage clamping and conveying assembly 3 is located on one side of the first-stage clamping and conveying assembly 1, and the second-stage clamping and conveying assembly 2 and the third-stage clamping and conveying assembly 3 are arranged sequentially along the conveying direction of the first-stage clamping and conveying assembly 1; after the tobacco filter rod 4 passes through the second-stage clamping and conveying assembly 2, its other end can be clamped by the third-stage clamping and conveying assembly 3.

[0057] Among them, the secondary clamping and conveying assembly 2 and the primary clamping and conveying assembly 1, and the tertiary clamping and conveying assembly 3 and the primary clamping and conveying assembly 1, gradually move away from each other along the conveying direction;

[0058] The clamping forces of the primary clamping and conveying assembly 1, the secondary clamping and conveying assembly 2, and the tertiary clamping and conveying assembly 3 are all adjustable; and when the cigarette filter rod 4 is clamped by the primary clamping and conveying assembly 1 and the secondary clamping and conveying assembly 2, the clamping force of the primary clamping and conveying assembly 1 is greater than the clamping force of the secondary clamping and conveying assembly 2, so that the paper wrapped on the other end of the cigarette filter rod 4 is gradually peeled off through the conveying of the secondary clamping and conveying assembly 2.

[0059] When the cigarette filter rod 4 is clamped by the primary clamping and conveying assembly 1 and the tertiary clamping and conveying assembly 3, the clamping force of the primary clamping and conveying assembly 1 is less than the clamping force of the tertiary clamping and conveying assembly 3, so that the remaining paper on the cigarette filter rod 4 can be gradually peeled off through the conveying of the primary clamping and conveying assembly 1.

[0060] Compared to existing technologies that use shredding and dissolving methods, resulting in incomplete separation of the paper rolls and easy contamination of the subsequent fiber bundles, this invention provides a double-sided gradually tapering angle peeling device for waste cigarette filter rods (4 rolls of paper). This solution mechanically peels the paper rolls to separate the paper rolls and fiber bundles, eliminating the risk of shredded paper jamming the pump / separator and contaminating the fiber bundles at the source, ensuring continuous operation of downstream equipment and the quality of regenerated fiber bundles. Specifically, the solution includes a primary clamping and conveying assembly 1, a secondary clamping and conveying assembly 2, and a tertiary clamping and conveying assembly 3. These three components can be configured using methods such as clamping heads that grip and move along a path, or two belts that clamp and convey synchronously, etc., as long as the clamping force is adjustable. Furthermore, the preferred outward spreading angle between them is an inclined linear angle, preferably 10°.

[0061] In the specific operation of this scheme, the two ends of the cigarette filter rod 4 are first fed into the inlet end of the primary clamping and conveying assembly 1 and the inlet end of the secondary clamping and conveying assembly 2, respectively. The primary clamping and conveying assembly 1 and the secondary clamping and conveying assembly 2 clamp and convey the filter rod 4 side-by-side, with the filter rod 4 sandwiched between them. At this time, the clamping force of the primary clamping and conveying assembly 1 is relatively large, able to tightly clamp the paper and fiber bundle at the end of the filter rod 4, while the clamping force of the secondary clamping and conveying assembly 2 is smaller, able to clamp the outer paper, but insufficient to completely clamp the inner fiber bundle; because the primary clamping and conveying assembly 1 and the secondary clamping and conveying assembly 2 are in... During the conveying process, the components gradually move away from each other, thus applying an axial pulling force to the cigarette filter rod 4 until the adhesion between the paper and the filament bundle is broken, allowing the paper to be torn from the middle. Secondly, since the clamping force of the secondary clamping conveying component 2 is relatively small, and it can apply a large frictional resistance to the paper through the rubber clamping surface, the secondary clamping conveying component 2 can gradually pull out the broken paper from the cigarette filter rod 4, that is, tear off and peel off part of the paper on the cigarette filter rod 4, and discharge the peeled paper from the outlet of the secondary clamping conveying component 2. At this time, the remaining cigarette filter rod 4 is always held by the primary clamping conveying component 1.

[0062] The remaining tobacco filter rod 4, which has been partially peeled off, continues to be conveyed forward by the primary clamping and conveying assembly 1 until the peeled end of the tobacco filter rod 4 enters the inlet of the tertiary clamping and conveying assembly 3, where a second peeling begins. At this point, due to the greater clamping force of the tertiary clamping and conveying assembly 3, it can only clamp the exposed filament bundle at the other end of the tobacco filter rod 4. Meanwhile, the clamping force of the primary clamping and conveying assembly 1 is reduced, becoming basically the same as that of the secondary clamping and conveying assembly 2, which can clamp the outer paper disc, but is insufficient to completely clamp the inner filament bundle. During the conveying process where the primary clamping conveyor assembly 1 and the tertiary clamping conveyor assembly 3 gradually move away from each other, an axial pulling force is applied to the tobacco filter rod 4 until the adhesion between the paper and the filament bundle is broken. Furthermore, the rubber clamping surface applies significant frictional resistance to the paper, allowing the primary clamping conveyor assembly 1 to gradually pull out the remaining paper from the tobacco filter rod 4, thus completely peeling the paper off the filament bundle. Subsequently, the tertiary clamping conveyor assembly 3 discharges the peeled filament bundle, while the primary clamping conveyor assembly 1 discharges the remaining peeled paper. Through this method, the complete separation of the paper and filament bundle can be achieved by mechanically peeling off the paper, ensuring continuous operation of downstream equipment and the quality of the regenerated filament bundle.

[0063] Please see Figures 2-5 In some possible embodiments, as a specific structure for stable clamping and conveying, the first-level clamping and conveying assembly 1, the second-level clamping and conveying assembly 2 and the third-level clamping and conveying assembly 3 all include an upper conveying belt line 5 and a lower conveying belt line 6 distributed vertically, and the upper conveying belt line 5 and the lower conveying belt line 6 both include belts arranged in a circumferential direction.

[0064] The conveyor belts of the upper conveyor belt 5 and the lower conveyor belt 6 form a clamping conveying path between their opposing conveying surfaces, thereby clamping the end of the cigarette filter rod 4 within them through opposing clamping. In this design, the upper conveyor belt 5 and the lower conveyor belt 6 can be arranged in a T-shape or a triangular cyclic conveying pattern, with several pulleys 8 arranged in a T-shape or triangle meshing with the inner side of the belt for transmission; the inner side of the belt is a toothed surface, and the outer side is a plane for clamping.

[0065] Specifically, to increase frictional resistance, the belt is a rubber belt. Preferably, the belt is a polyester canvas core rubber belt with a width of 30mm.

[0066] Please see Figures 2-5In some possible embodiments, to provide stable support, the primary clamping and conveying assembly 1, the secondary clamping and conveying assembly 2, and the tertiary clamping and conveying assembly 3 all include a side plate frame 9; the upper conveyor belt 5 and the lower conveyor belt 6 each include a plurality of pulleys 8, all of which are fixed on the same side of the side plate frame 9, and the belt is wound sequentially around the plurality of pulleys 8. In this scheme, the side plate frame 9 stands on the ground, and its side serves as a mounting surface for mounting a plurality of pulleys 8. Each pulley 8 includes a housing fixed to the mounting surface and a meshing wheel that rotates freely on the housing. The belt and the meshing wheel are driven by meshing. The meshing wheel on one of the pulleys 8 can be connected to the output end of an external rotary motor 15 by rotation, so that the rotary motor 15 drives the meshing wheel on one of the pulleys 8 to rotate, and the other pulleys 8 are driven members. In addition, the opposing conveyor belts of the upper conveyor belt 5 and the lower conveyor belt 6 can clamp each other with a sufficiently long linear clamping distance. Since the two opposing conveyor belts are rubber belts and have sufficient friction and friction length, the lower conveyor belt 6 can be driven to rotate by a single rotary motor 15, and the upper conveyor belt 5 can be driven to rotate synchronously through friction transmission.

[0067] Please see Figures 3-5 In some possible embodiments, to achieve clamping force adjustment during belt conveying, the upper conveyor belt 5 further includes a plurality of active tensioning pulleys 501, and the lower conveyor belt 6 further includes a plurality of passive tensioning pulleys 601. The plurality of active tensioning pulleys 501 and the plurality of passive tensioning pulleys 601 are all arranged along the clamping and conveying path direction and mesh with the belt; the plurality of active tensioning pulleys 501 and the plurality of passive tensioning pulleys 601 are staggered along the clamping and conveying path direction.

[0068] Several passive tensioning pulleys 601 are fixed to the side plate frame 9; each active tensioning pulley 501 is equipped with a lifting component 502, which is mounted on the side plate frame 9 and used to drive the active tensioning pulley 501 to rise and fall, thereby changing the clamping force between the opposing belts. In this scheme, the two belts on the clamping conveyor path are tightly pressed together, the lower passive tensioning pulleys 601 are fixedly mounted, while the upper active tensioning pulleys 501 can be adjusted up and down to change the clamping force along the clamping conveyor path. The tensioning pulleys and pulleys 8 have the same structure and can both mesh with the belts. In addition, pressure sensors can be installed on the contact sidewalls of the passive tensioning pulleys 601 or active tensioning pulleys 501 to automatically detect pressure and achieve controllable clamping force. The clamping force is 0.2-0.6 MPa.

[0069] Please see Figure 6In some possible embodiments, as a specific structure of a lifting assembly 502, the lifting assembly 502 includes a bolt 5021, a hinge plate 5022, and an L-shaped fixing plate 5023. The vertical plate of the L-shaped fixing plate 5023 is fixed to the side plate frame 9 and is located above the hinge plate 5022. One end of the bolt 5021 is threaded through the horizontal plate of the L-shaped fixing plate 5023.

[0070] One end of the hinge plate 5022 is hinged to the side plate frame 9, and the other end of the hinge plate 5022 can rotate around one end of itself.

[0071] The active tensioning wheel 501 is fixed to the other end of the hinge plate 5022, and the downward movement of the bolt 5021 can push the other end of the hinge plate 5022 to rotate, thereby causing the active tensioning wheel 501 to descend. In this design, one end of the hinge plate 5022 is hinged to the side plate frame 9 and can rotate by being sleeved on a fixed shaft. Since the other end of the hinge plate 5022 is fixedly connected to the housing of the active tensioning wheel 501, the rotation of the other end of the hinge plate 5022 can drive the active tensioning wheel 501 to move synchronously. When it is necessary to increase the pressure, the bolt 5021 is rotated, causing the bolt 5021 to move downward, thereby pushing the hinge plate 5022 downward through the lower end of the bolt 5021, which in turn drives the active tensioning wheel 501 downward, completing the adjustment. When it is necessary to decrease the pressure, the bolt 5021 is rotated, causing the bolt 5021 to move upward, and the compressed rubber belt can gradually rebound, thereby pushing the active tensioning wheel 501 upward to reset.

[0072] Please see Figure 2 and Figure 3 In some possible embodiments, since the primary clamping conveyor assembly 1 has a long conveyor line and is not conducive to continuous pressure adjustment, it is split into two conveyor units and connected in a transition to adjust different clamping forces separately. The primary clamping conveyor assembly 1 has two conveyor units in sequence along its own conveying direction, and each conveyor unit includes an upper conveyor belt line 5 and a lower conveyor belt line 6. The two conveyor units cooperate with the secondary clamping conveyor assembly 2 and the tertiary clamping conveyor assembly 3, respectively.

[0073] At the outlet and inlet ends of the clamping conveying path of the conveying unit, two pulleys 8 are provided, one above the other; a transition belt 10 is engaged between the upper pulley 8 at the outlet end of the previous conveying unit and the upper pulley 8 at the inlet end of the next conveying unit; a transition belt 10 is also engaged between the lower pulley 8 at the outlet end of the previous conveying unit and the lower pulley 8 at the inlet end of the next conveying unit.

[0074] A transition clamping conveying path is formed between the two transition belts 10; and the pulleys 8 located at the outlet and inlet ends are provided with synchronously rotating auxiliary meshing pulleys 11 in a direction away from the side plate frame 9, and the transition belts 10 mesh with the auxiliary meshing pulleys 11. In this scheme, the two conveying units are distributed sequentially along the conveying direction and are synchronously driven by the transition belts 10, so that the conveying speeds of the two are the same. The ends of the two adjacent and directly opposite pulleys 8 extend inward, that is, in a direction away from the side plate frame 9, so that a longer meshing pulley can be placed on it to leave room for the transition belts 10; in this way, when one end of the tobacco filter rod 4 is output from the outlet of the first conveying unit, it can immediately enter the clamping conveying path between the two transition belts 10, and through the conveying of the transition belts 10, it enters the clamping conveying path of the second conveying unit again; with this arrangement, it is convenient to set different clamping forces in the two conveying units respectively. In addition, since the transition belt 10 is located closer to the middle of the tobacco filter rod 4, it makes it easier to hold the tobacco filter rod 4 in a more centered position when holding it alone, thus preventing it from tilting up when holding only one end of the tobacco filter rod 4.

[0075] In some possible embodiments, in order to reduce the number of motors and achieve the same speed of conveying, one of the pulleys 8 on the secondary clamping and conveying assembly 2 and the corresponding pulley 8 on the primary clamping and conveying assembly 1 are connected by a first universal joint 12.

[0076] One of the pulleys 8 on the three-stage clamping and conveying assembly 3 and the corresponding pulley 8 on the first-stage clamping and conveying assembly 1 are connected by a second universal joint 13. In this scheme, the entire conveying device can be driven by only one rotary motor 15 as a power source; when the motor drives the lower conveyor belt 6 of the first-stage clamping and conveying assembly 1 to rotate, the lower conveyor belt 6 can drive the upper conveyor belt 5 to rotate through rubber friction, and is transmitted to the second-stage clamping and conveying assembly 2 on one side through the first universal joint 12; subsequently, it can drive the second conveying unit behind it to rotate through the transition belt 10, and the second conveying unit is transmitted to the third-stage clamping and conveying assembly 3 on one side through the second universal joint 13.

[0077] Please see Figure 2 and Figure 5 In some possible embodiments, in order to guide the other end of the cigarette filter rod 4 into the inlet end of the three-stage clamping and conveying assembly 3, a guide component is provided at the inlet end of the clamping and conveying path of the three-stage clamping and conveying assembly 3. The guide component includes two guide plates 14 distributed vertically, which gradually move away from the inlet end of the clamping and conveying path. The two guide plates 14 are used to guide the other end of the cigarette filter rod 4 into the clamping and conveying path.

[0078] Please see Figure 7 In some possible embodiments, to achieve automated single-piece conveying of the cigarette filter rod 4, a single-piece lifting conveying device 7 is also included. The top of the single-piece lifting conveying device 7 is also provided with an arc-shaped guide plate 701. The single-piece lifting conveying device 7 is used to lift and convey the single cigarette filter rod 4 onto the arc-shaped guide plate 701. The arc-shaped guide plate 701 allows the cigarette filter rod 4 to slide down from top to bottom, so as to guide it to the inlet end position of the primary clamping conveying assembly 1 and the secondary clamping conveying assembly 2.

[0079] The upper ends of each lifting plate 702 and fixing plate 703 in the single-piece lifting and conveying device 7 are V-shaped, and the inner side of the upper V-shaped end of the lifting plate 702 and the outer side of the upper V-shaped end of the fixing plate 703 are connected to each other, so that the filter rod 4 can automatically slide from the upper V-shaped end of the lifting plate 702 into the upper V-shaped end of the fixing plate 703. In this solution, the single-piece lifting and conveying device 7 is existing equipment, such as the existing literature with publication number CN212060279U, entitled "A Material Handling and Anti-jamming Device for In Vitro Diagnostic Instruments", which provides the same single-piece conveying function as this solution, so it will not be described again here. Secondly, the top of the single-piece lifting conveyor 7 is equipped with an arc-shaped guide plate 701. The outlet of the arc-shaped guide plate 701 is close to and aligned with the inlet end of the clamping conveying path. The lifted single cigarette filter rod 4 can enter the arc-shaped guide plate 701 and automatically slide down under its own weight, eventually being guided into the clamping conveying path. In addition, the slot formed at the upper end of the V-shape facilitates the entry of the single cigarette filter rod 4, and it slides down into the next V-shaped slot through the lower inclined plate of the slot. The included angle of the V-shaped slot is preferably 90°, the depth is 15mm, the spacing is 20mm, it is suitable for filter rods with a diameter of 7.8-8.0mm, and it has anti-slip ridges.

[0080] How this solution works:

[0081] Feeding stage: Several tobacco filter rods 4 are stored on the bottom storage plate of the single lifting conveyor 7. The single tobacco filter rods 4 can be lifted and moved upward in sequence through the lifting mechanism and enter the arc-shaped guide plate 701. The arc-shaped guide plate 701 can guide the tobacco filter rods 4 to the inlet end of the primary clamping conveyor assembly 1 and the secondary clamping conveyor assembly 2. The clamping conveying path formed by the two belts clamps and conveys the tobacco filter rods 4.

[0082] First-stage stripping: The first-stage clamping and conveying assembly 1 and the second-stage clamping and conveying assembly 2 clamp the two ends of the tobacco filter rod 4 side by side, and the tobacco filter rod 4 is clamped between the two. At this time, a photoelectric sensor is provided to detect the presence or absence of the tobacco filter rod 4. The default belt speed is 6m / min, and the synchronous transmission error is ≤0.5%. At this point, the clamping force of the primary clamping and conveying assembly 1 is relatively large, which can tightly clamp the paper and filament bundle at the end of the cigarette filter rod 4. The clamping force of the secondary clamping and conveying assembly 2 is relatively small, which can clamp the outer paper but is not enough to completely clamp the inner filament bundle. As the primary clamping and conveying assembly 1 and the secondary clamping and conveying assembly 2 gradually move away from each other during the conveying process, they can apply an axial pulling force to the cigarette filter rod 4 until the adhesion between the paper and the filament bundle is broken, and the paper can be torn off from the middle position. Secondly, since the clamping force of the secondary clamping and conveying assembly 2 is relatively small, and it can apply a large frictional resistance to the paper through the rubber clamping surface, the secondary clamping and conveying assembly 2 can gradually pull out the broken paper from the cigarette filter rod 4, that is, tear off and peel off part of the paper on the cigarette filter rod 4, and discharge the peeled paper from the outlet of the secondary clamping and conveying assembly 2. At this time, the remaining cigarette filter rod 4 is always only clamped by the primary clamping and conveying assembly 1.

[0083] Second-stage stripping: The remaining filter rod 4, which has been partially stripped, continues to be conveyed forward by the primary clamping and conveying assembly 1, exiting from the first conveying unit and entering the clamping and conveying path of the transition belt 10. It is then conveyed to the next conveying unit. At this point, one end of the filter rod 4 is clamped by the next conveying unit in the primary clamping and conveying assembly 1, while the stripped end of the filter rod 4 enters the inlet of the tertiary clamping and conveying assembly 3, where a second stripping begins. Due to the greater clamping force of the tertiary clamping and conveying assembly 3, it can only clamp the exposed fiber bundle at the other end of the filter rod 4. Meanwhile, the clamping force of the primary clamping and conveying assembly 1 is reduced, and the secondary clamping... The clamping force of the conveying assembly 2 is basically the same, which can clamp the outer paper disc, but is insufficient to completely clamp the inner filament bundle. During the conveying process where the primary clamping conveying assembly 1 and the tertiary clamping conveying assembly 3 gradually move away from each other, an axial pulling force can be applied to the tobacco filter rod 4 until the adhesion between the paper disc and the filament bundle is broken. Furthermore, the rubber clamping surface can apply significant frictional resistance to the paper disc. Therefore, the primary clamping conveying assembly 1 can gradually pull out the remaining paper disc on the tobacco filter rod 4, thus completely peeling off the paper disc from the filament bundle. Subsequently, the tertiary clamping conveying assembly 3 discharges the peeled filament bundle, and the primary clamping conveying assembly 1 discharges the remaining peeled paper disc. Through the above scheme, the complete separation of the paper disc and the filament bundle can be achieved by mechanically peeling off the paper disc, ensuring continuous operation of the downstream equipment and the quality of the regenerated filament bundle.

[0084] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A double-sided gradient angle peeling device for waste cigarette filter rod discs, characterized in that, include: A primary clamping and conveying assembly (1) is used to clamp one end of a tobacco filter rod (4); The secondary clamping and conveying assembly (2) is located on one side of the primary clamping and conveying assembly (1) and is used to clamp the other end of the tobacco filter rod (4); The three-stage clamping and conveying assembly (3) is located on one side of the first-stage clamping and conveying assembly (1), and the second-stage clamping and conveying assembly (2) and the third-stage clamping and conveying assembly (3) are arranged sequentially along the conveying direction of the first-stage clamping and conveying assembly (1); after the tobacco filter rod (4) passes through the second-stage clamping and conveying assembly (2), its other end can be clamped by the third-stage clamping and conveying assembly (3); Among them, the secondary clamping and conveying assembly (2) and the primary clamping and conveying assembly (1), and the tertiary clamping and conveying assembly (3) and the primary clamping and conveying assembly (1) gradually move away from each other along the conveying direction; The clamping forces of the first-level clamping and conveying assembly (1), the second-level clamping and conveying assembly (2), and the third-level clamping and conveying assembly (3) are all adjustable, and the clamping surfaces are all rubber surfaces. When the cigarette filter rod (4) is clamped by the primary clamping and conveying assembly (1) and the secondary clamping and conveying assembly (2), the clamping force of the primary clamping and conveying assembly (1) is greater than the clamping force of the secondary clamping and conveying assembly (2), so that the paper wrapped on the other end of the cigarette filter rod (4) is gradually peeled off through the conveying of the secondary clamping and conveying assembly (2). When the cigarette filter rod (4) is clamped by the primary clamping and conveying assembly (1) and the tertiary clamping and conveying assembly (3), the clamping force of the primary clamping and conveying assembly (1) is less than the clamping force of the tertiary clamping and conveying assembly (3), so that the remaining paper on the cigarette filter rod (4) is gradually peeled off through the conveying of the primary clamping and conveying assembly (1).

2. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 1, characterized in that, The first-level clamping and conveying assembly (1), the second-level clamping and conveying assembly (2) and the third-level clamping and conveying assembly (3) all include an upper conveyor belt (5) and a lower conveyor belt (6) distributed vertically, and the upper conveyor belt (5) and the lower conveyor belt (6) both include belts arranged in a circumferential direction; The conveyor surfaces of the upper conveyor belt (5) and the lower conveyor belt (6) facing each other form a clamping conveyor path to clamp the end of the tobacco filter rod (4) inward by clamping it in opposite directions.

3. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 2, characterized in that, The belt is a rubber belt.

4. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 3, characterized in that, The first-level clamping and conveying assembly (1), the second-level clamping and conveying assembly (2) and the third-level clamping and conveying assembly (3) each include a side plate frame (9); the upper conveying belt (5) and the lower conveying belt (6) each include a number of pulleys (8), and the pulleys (8) are fixed on the same side of the side plate frame (9), and the belt is wound around the pulleys (8) in sequence.

5. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 4, characterized in that, The upper conveyor belt (5) also includes a plurality of active tensioning pulleys (501), and the lower conveyor belt (6) also includes a plurality of passive tensioning pulleys (601). The plurality of active tensioning pulleys (501) and the plurality of passive tensioning pulleys (601) are arranged along the clamping conveying path direction and mesh with the belt; the plurality of active tensioning pulleys (501) and the plurality of passive tensioning pulleys (601) are staggered along the clamping conveying path direction; Several passive tensioning pulleys (601) are fixed on the side plate frame (9); each active tensioning pulley (501) is provided with a lifting component (502), which is provided on the side plate frame (9) and is used to drive the active tensioning pulley (501) to lift and lower, so as to change the clamping force between the belts facing each other.

6. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 5, characterized in that, The lifting assembly (502) includes a bolt (5021), a hinge plate (5022), and an L-shaped fixing plate (5023). The vertical plate of the L-shaped fixing plate (5023) is fixed to the side plate frame (9) and is located above the hinge plate (5022). One end of the bolt (5021) is threaded through the horizontal plate of the L-shaped fixing plate (5023). One end of the hinge plate (5022) is hinged to the side plate frame (9), and the other end of the hinge plate (5022) can rotate around itself. The active tension wheel (501) is fixed to the other end of the hinge plate (5022), and the bolt (5021) moves down, which can push the other end of the hinge plate (5022) to rotate so that the active tension wheel (501) descends.

7. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 4, characterized in that, The first-level clamping and conveying assembly (1) has two conveying units in sequence along its own conveying direction, and each of the two conveying units includes an upper conveying belt (5) and a lower conveying belt (6); the two conveying units cooperate with the second-level clamping and conveying assembly (2) and the third-level clamping and conveying assembly (3), respectively. At the outlet and inlet ends of the clamping conveying path of the conveying unit, two pulleys (8) are provided, one above the other. A transition belt (10) meshes between the upper pulley (8) at the outlet end of the previous conveying unit and the upper pulley (8) at the inlet end of the next conveying unit. A transition belt (10) also meshes between the lower pulley (8) at the outlet end of the previous conveying unit and the lower pulley (8) at the inlet end of the next conveying unit. A transition clamping conveying path is formed between the two transition belts (10); and the pulleys (8) located at the outlet end and the inlet end are provided with a secondary meshing wheel (11) that can rotate synchronously in a direction away from the side plate frame (9), and the transition belts (10) mesh with the secondary meshing wheel (11).

8. The double-sided gradient angle peeling device for waste cigarette filter rod discs according to claim 4, characterized in that, One of the pulleys (8) on the secondary clamping and conveying assembly (2) and the corresponding pulley (8) on the primary clamping and conveying assembly (1) are connected by a first universal joint (12); One of the pulleys (8) on the three-stage clamping and conveying assembly (3) and the corresponding pulley (8) on the first-stage clamping and conveying assembly (1) are connected by a second universal joint (13).

9. A double-sided gradient angle peeling device for waste cigarette filter rod discs according to any one of claims 2 to 8, characterized in that, At the inlet end of the clamping and conveying path of the three-stage clamping and conveying assembly (3), a guide assembly is provided. The guide assembly includes two guide plates (14) distributed vertically. The two guide plates (14) gradually move away from the inlet end of the clamping and conveying path. The two guide plates (14) are used to guide the other end of the tobacco filter rod (4) into the clamping and conveying path.

10. A double-sided gradient angle peeling device for waste cigarette filter rod discs according to any one of claims 2 to 8, characterized in that, It also includes a single lifting conveyor (7), and the top of the single lifting conveyor (7) is provided with an arc-shaped guide plate (701). The single lifting conveyor (7) is used to lift and convey a single tobacco filter rod (4) onto the arc-shaped guide plate (701). The arc-shaped guide plate (701) allows the tobacco filter rod (4) to slide down from top to bottom and be guided to the inlet end position of the first-stage clamping conveyor assembly (1) and the second-stage clamping conveyor assembly (2). The upper ends of each lifting plate (702) and fixing plate (703) in the single lifting and conveying device (7) are V-shaped, and the inner side of the upper V-shaped end of the lifting plate (702) and the outer side of the upper V-shaped end of the fixing plate (703) are connected to each other, so that the filter rod (4) can automatically slide from the upper V-shaped end of the lifting plate (702) into the upper V-shaped end of the fixing plate (703).

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