Online continuous strip shredding equipment and method

Abstract

The invention provides online continuous strip shredding equipment and method. The equipment comprises a strip coil storage mechanism, a feeding mechanism, an unsealing and threading mechanism, a pretreatment mechanism, a splicing mechanism, a winding mechanism, a waste treatment mechanism, a tensioning roller set, a moisture regaining and feeding mechanism, a traction mechanism, a fixed-length slitting mechanism, a fixed-width shredding mechanism, a separation and dust removal mechanism and a conveyor. The online continuous splicing of the reconstituted tobaccos is realized, the reconstituted tobaccos are quantitatively humidified and charged, the tensile strength or / and toughness of tobacco strip materials are increased, meanwhile, the fragrance is increased, the strip cutting and shredding efficiency and quality of the strip materials are greatly improved, the utilization rate of the reconstituted tobaccos is improved, tobacco resources are saved, the structure is compact, the occupied area is small, and the working efficiency is high; the length and width of the tobacco shreds can be adjusted according to cigarette production requirements, the length and width uniformity is greatly improved, and the quality of the tobacco shreds is guaranteed.

Description

Technical Field

[0001] This invention provides an online continuous shredding device and method for strip materials, particularly an online continuous shredding device and method for reconstituted tobacco strips in the form of rolls, belonging to the technical field of tobacco processing equipment. Technical Background

[0002] Recently, reconstituted tobacco has been widely used in cigarette formulations both domestically and internationally. Reconstituted tobacco, also known as tobacco flakes or reconstituted tobacco, is a recycled tobacco product made from cigarette production byproducts such as tobacco stems, tobacco leaf fragments, and tobacco dust through various processing methods, including papermaking. It can be used as a flavor filler in cigarettes. Currently, the papermaking method for reconstituted tobacco involves slicing the repeatedly dried reconstituted tobacco leaves using a process similar to leaf threshing, cutting them into rhomboid or rectangular flakes. These flakes are then mixed with tobacco flakes and processed using a shredding process to produce shredded tobacco for use in cigarettes. This processing method involves multiple humidification and high-temperature treatments, significantly reducing the quality of the reconstituted tobacco for use. While existing technologies and patents disclose similarities in the processing of reconstituted tobacco leaves, such as unpacking, loosening, rehydrating, shredding, drying, and blending boxed reconstituted tobacco leaves, these methods alleviate some of the problems associated with processing reconstituted tobacco leaves and natural tobacco leaves together using the papermaking method, including issues like leaf breakage, dust, fiber fly, and low utilization. However, the resulting tobacco shreds still suffer from high breakage rates, poor looseness, uneven shred width, and a tendency to break, increasing production costs and significantly impacting cigarette quality. For example, Chinese patent "Process and Equipment for Shredding Reconstituted Tobacco Leaves Using the Papermaking Method" (CN 101828762A) discloses a method and equipment for shredding reconstituted tobacco leaves. While this method uses equipment that can directly shred the tobacco, it requires a large area, has a long process, and consumes a lot of energy. Therefore, optimizing reconstituted tobacco shredding technology and improving tobacco shred quality is crucial for enhancing the stability of cigarette product quality. Summary of the Invention

[0003] The first objective of this invention is to provide an online continuous strip cutting device.

[0004] The second objective of this invention is to provide a method for online continuous strip cutting based on an online continuous strip cutting device.

[0005] The first objective of this invention is achieved through the following technical solution: an online continuous strip cutting device, characterized in that it comprises: A feeding mechanism coupled to a tape roll storage mechanism, which manipulates the tape roll to move up and down and performs tape roll clamping and support, the feeding mechanism including: a lifting mechanism, a pushing mechanism and a clamping mechanism; An unsealing and threading mechanism that is connected to the feeding mechanism and operates the unwinding of new strip rolls; A pretreatment mechanism that is connected to the feeding mechanism and operates to adjust the physical and chemical properties of new and old belt rolls; A splicing mechanism that is connected to the pre-treatment unit and manipulates the new belt roll head and the old belt roll tail to form a single unit; A winding mechanism that is coupled with a splicing mechanism to operate the winding, breaking, and unwinding of the new belt roll head and the old belt roll tail; A waste processing mechanism for handling the head and tail sections recycled by the winding mechanism, which is connected to the winding mechanism. Tensioning rollers that are coupled with the splicing mechanism to provide constant tension to the strip; A re-moistening and / or feeding mechanism that is connected to the tensioning roller assembly to re-moisten and / or feed the strip; A traction mechanism that is coupled with a rewetting mechanism to control the movement of the strip; A fixed-length slitting mechanism that is coupled with a traction mechanism to control the longitudinal cutting of the belt into strips; A width-cutting mechanism that is coupled with a length-cutting mechanism to manipulate the strip to be cut into filaments in the transverse direction; A separation and dust removal mechanism that is connected to a fixed-width slitting mechanism to control the separation of tobacco shreds from dust and impurities; A conveyor connected to a dust separation and removal mechanism for transporting clean tobacco shreds to subsequent processes.

[0006] Furthermore, the feeding mechanism has the following characteristics: The tape roll storage mechanism includes a seat with V-shaped or arc-shaped grooves on the surface for storing multiple tape rolls. The tape rolls can be automatically loaded onto the storage mechanism by a single robotic arm, manual assistance, and / or a three-coordinate robotic arm. The lifting mechanism includes a base with a V-shaped or arc-shaped groove on its surface for limiting and supporting a roll of tape. The inner side of the base is provided with a slider that is slidably engaged with a vertical slide rail on the frame. A power unit is provided between the base and the frame so that the base and the roll of tape on it can move up and down along the vertical slide rail under the drive of the power unit, thereby lifting the roll of tape to a set height for loading and unloading. The clamping mechanism includes a turntable with at least two support rollers for clamping new and old tape rolls respectively; so that when the turntable of the clamping mechanism rotates, the two support rollers on it exchange positions, thereby realizing the alternating placement of new and old tape rolls. The push plate mechanism includes: a cantilever whose inner end is slidably mounted on a horizontal slide bar; a vertical push plate connected to the outer end of the cantilever; an arc-shaped through groove at the lower end of the vertical push plate that matches the support roller of the clamping mechanism; the horizontal slide bar is fixed on the frame; and a horizontal power machine is set between the frame and the cantilever. So that when the turntable rotates, the support roller is rotated to the feeding position, and the power motor of the lifting mechanism is activated to lift the seat with V-shaped or arc-shaped groove and the strip roll on it to the feeding position. When the center of the strip roll, the center of the arc-shaped through groove at the lower end of the vertical push plate of the push plate mechanism and the axis of the support roller are aligned, the horizontal power motor of the push plate mechanism 3 can drive the cantilever and the vertical push plate on it to move, so as to push the core of the strip roll onto the support roller, complete the feeding of the strip roll, and prepare for the unwinding of the strip roll.

[0007] Furthermore, the unsealing and threading mechanism is installed on the outside of the lifting mechanism, and includes: a drive motor mounted on the bracket, a swing arm connected to the output shaft of the drive motor, a power cylinder located at the outer end of the swing arm, a horizontal paper-pressing rod located on the piston rod of the power cylinder, an L-shaped rod connected to the power cylinder seat, and a horizontal unsealing cutter head located at the horizontal end of the L-shaped rod and mating with the horizontal paper-pressing rod. So that when the lifting mechanism rises or falls, it drives the unsealing and threading mechanism to the unsealing position. At the same time, the rotation of the turntable adjusts the support roller and the belt roll on it to the unsealing position. The drive motor of the unsealing and threading mechanism drives the swing arm and the horizontal unsealing cutter to swing until the horizontal unsealing cutter contacts the belt head of the belt roll. The power cylinder drives the horizontal pressure bar to move to cooperate with the horizontal unsealing cutter to clamp the belt head. Then, through the rotation of the turntable of the clamping mechanism and the up or down movement of the feeding mechanism and the unsealing and threading mechanism, the horizontal pressure bar and the horizontal unsealing cutter holding the belt head are adjusted to be directly above the pretreatment mechanism and the splicing mechanism. Then, the feeding mechanism drives the unsealing and threading mechanism to move downward through the pretreatment mechanism and the splicing mechanism. At the same time, the lower winding mechanism extends to insert the belt head into the slot. After the power cylinder drives the horizontal pressure bar to move back and release the clamp on the belt head, the lower winding mechanism winds the belt head onto it and waits for splicing, thus completing the unsealing and threading of the belt.

[0008] Furthermore, the pretreatment mechanism includes: two spaced transfer rollers positioned along the running path of the new and old reconstituted tobacco leaf belts; and a rehydration and / or feeder positioned above the transfer rollers, used to adjust the physical and chemical properties of the uncoiled belt material to meet the requirements of cold pressing; the physical and chemical property adjustment includes, but is not limited to: increasing the tensile strength and / or toughness of the belt material; wherein: The rehydration and / or feeder includes a nozzle and a liquid delivery pipe with its inner end connected to the nozzle and its outer end connected to a liquid pump and a liquid source; so as to selectively spray non-toxic liquid onto new and old strips as needed to increase the tensile strength and / or toughness of the new and old strips.

[0009] Furthermore, the rehydration and / or feeder may also include: a coating roller group respectively disposed outside the two transfer rollers for applying non-toxic liquid to the head and tail of the new and old strip rolls, each coating roller group including: a small roller in contact with the strip material, a transition roller located between the small roller and the large roller, and the large roller placed in a liquid tank so as to selectively apply the non-toxic liquid in the liquid tank to the new and old strip materials as needed, thereby increasing the tensile strength and / or toughness of the new and old strip materials.

[0010] Furthermore, the splicing mechanism includes: a pair of rollers with fan-shaped dies installed on the running paths of the new and old strips, and a roller driver connected to the rollers. One of the fan-shaped dies is a punch with multiple teeth spaced apart on its surface, and the other fan-shaped dies is a smooth surface, so that after the fan-shaped dies on the rollers move towards each other and mesh under the drive of the roller driver, the head of the new strip roll and the tail of the old strip roll are cold-pressed and spliced ​​into one piece.

[0011] Furthermore, the winding mechanism is configured as an upper winding mechanism and / or a lower winding mechanism, each winding mechanism including: a horizontal cylinder, a strip groove located at the front of the horizontal cylinder, the strip groove being an axial through groove extending from the front of the horizontal cylinder towards the center, the front end and both sides of the axial through groove being open, wherein: The front part of the horizontal cylinder extends forward and is suspended in the air, while the rear part passes through the anti-reverse ring and is connected to the telescopic and rotating mechanism. The anti-reverse ring is a circular ring that slides and fits into the horizontal cylinder. The inner diameter of the circular ring is adapted to the outer diameter of the horizontal cylinder. The anti-reverse ring is fixed to the frame by the fixing seat of the outer sleeve so that the belt head or belt tail can pass through the horizontal cylinder through the belt slot, thereby facilitating the belt head or belt tail to wind onto the horizontal cylinder. The anti-reverse ring can prevent the belt head or belt tail from rolling when the horizontal cylinder moves backward, so that the belt head or belt tail rolls off the horizontal cylinder for easy collection. The telescopic rotation mechanism includes a first power unit, which is coaxially connected to the rear end of the horizontal cylinder via its output shaft. The first power unit is fixed on a sliding seat, which is slidably connected to a slide rail on a support frame via sliders on both sides of its bottom. The support frame is fixed on the machine frame. A horizontal lead screw is provided between the sliding seat and the support frame. The two ends of the horizontal lead screw are respectively engaged with corresponding bearings on the support frame. The outer end of the horizontal lead screw passes through a screw hole on the sliding seat and a bearing on the outside of the support frame in sequence, and is then powered by a second power unit. This allows the first power unit to drive the horizontal cylinder to rotate, and the second power unit to drive the horizontal lead screw to move the sliding seat, the first power unit on it, and the horizontal cylinder back and forth. Furthermore, a linear cylinder or linear electric cylinder can be provided between the sliding seat and the support frame, with the cylinder seat of the linear cylinder or linear electric cylinder fixed to the outside of the support frame and the piston rod end fixed to the sliding seat, so as to drive the sliding seat and the horizontal cylinder on it to move forward and backward through the linear cylinder or linear electric cylinder.

[0012] Furthermore, the waste processing mechanism includes: a collection trough connected to but not connected to the winding mechanism; and extrusion rollers connected to but not connected to the discharge port of the collection trough. The left and right horizontal rollers of the extrusion rollers rotate in opposite directions. The extrusion rollers are movably mounted on the frame via a conventional roller drive mechanism. The left and right horizontal rollers are each provided with a plurality of annular protrusions evenly spaced from end to end. Between each pair of adjacent annular protrusions is an annular groove with a diameter smaller than the annular protrusion. Each annular protrusion has cutting teeth parallel to the roller axis on its circumference. The annular protrusion on the left horizontal roller meshes with the annular groove on the right horizontal roller, and similarly, the annular protrusion on the right horizontal roller meshes with the annular groove on the left horizontal roller, with a meshing gap of 0.02 mm, so that the strip can be extruded into strips of equal width through the meshing annular protrusion and annular groove. The cutting teeth on the annular protrusion of the left horizontal roller also mesh with the annular groove on the right horizontal roller. Similarly, the cutting teeth on the annular protrusion of the right horizontal roller also mesh with the annular groove on the left horizontal roller. The cutting teeth on each annular protrusion are evenly distributed and have the same number, so that the strip that has been extruded into equal width can be cut into filaments of equal length by the intermittent meshing of the cutting teeth and the annular groove.

[0013] Furthermore, the cutting teeth on each annular protrusion are not uniformly distributed and have different numbers, so that the strips that are compressed into equal widths can be cut into filaments of different lengths by the interlocking cutting teeth and annular grooves.

[0014] Furthermore, the upper part of the left and right horizontal rollers is configured as the inlet end connected to the outlet of the collection trough, and the lower part is configured as the outlet end. A guide plate is provided at the outlet end to mate with the guide plate, which is fixed to the frame by a connector. This allows the collected strip material to be extruded into filaments by the compression of the left and right horizontal rollers, facilitating subsequent recycling. It can be directly used in subsequent production without further processing, effectively improving the recycling rate. The guide plate includes left and right inclined plates spaced apart at the upper end and extending outward to both sides at the lower end. The lower ends of the left and right inclined plates are connected to left and right horizontal plates extending outward horizontally, respectively. The upper ends of the left and right inclined plates slide against the left and right horizontal rollers. The gap between the upper ends of the left and right inclined plates is connected to the discharge end of the extrusion rollers. The length of the guide plate is adapted to the length of the extrusion rollers so that the extruded filaments can be smoothly released from the extrusion rollers for easy collection.

[0015] Furthermore, the collection trough is connected to the upwardly extending guide pipe. The upper end of the guide pipe is connected to the upper winding mechanism, and the lower end is connected to the collection trough. This allows the tail of the old roll that has been ejected from the upper winding mechanism to fall accurately into the collection trough through the guide pipe. It also ensures that the tail of the old roll can avoid obstruction from other components on the frame when it falls, thus preventing the tail from falling off course due to obstruction.

[0016] Furthermore, the rehydration and feeding mechanism is used to complete the online rehydration and humidification or feeding of the front and back sides of the strip. It includes a sealing cover with perforations through which the strip passes, and upper and lower spray nozzles arranged opposite each other inside the sealing cover to spray and humidify the front and back sides of the strip. The upper and lower spray nozzles are connected to one end of a liquid supply pipe, and the other end of the liquid supply pipe extends outward through the corresponding through hole on the sealing cover and is connected to a liquid pump and a liquid source. A moisture detector is installed outside the perforations of the sealing cover to detect the moisture content of the strip so that rehydration liquid or fragrance can be sprayed onto the front and back sides of the strip in a timely manner to meet the needs of cigarette production.

[0017] Furthermore, the rehydration feeding mechanism can also be set as the same coating roller group as the pretreatment mechanism, and the rehydration liquid or fragrance can be applied to the front and back sides of the strip in a timely manner by the coating roller group to meet the needs of cigarette production.

[0018] Furthermore, the traction mechanism, used to stably provide traction force for the movement of the strip, includes an upper traction roller and a lower traction roller. The upper traction roller is connected to an upper power cylinder and is used to drive the upper traction roller to swing downward and cooperate with the lower traction roller to press the strip. The lower traction roller is connected to a motor output shaft and is used to drive the lower traction roller to rotate, thereby traction and supporting the movement of the strip.

[0019] Furthermore, the fixed-length slitting mechanism is used to slit the strip material longitudinally into strips of a fixed width. It includes a support roller, a disc cutter roller, and multiple disc cutters fixed to the disc cutter roller, wherein: A spacer is provided between each pair of disc cutters to adjust the spacing between them; The support roller is a hollow negative pressure roller with several negative pressure holes. The support roller is connected to an external negative pressure source through a negative pressure pipe so that a negative pressure is formed on the surface of the hollow negative pressure roller to hold the strip, which facilitates the cutting of the strip. At the same time, the support roller is also provided with a knife groove that cooperates with the disc knife. The support roller is connected to the guide plate, which is used for conveying and guiding the strip to transport the cut strip to the fixed-length slicing mechanism to prevent the strip from slipping.

[0020] Furthermore, the fixed-width slicing mechanism is used to cut a fixed-width strip into fixed-length slices in a single transverse cut. It includes a housing fixed to the frame, a horizontal roller cutter movably disposed within the housing, and a fixed cutter disposed on the housing and located at the input end of the horizontal roller cutter. The output ends are located below the horizontal roller cutter and the fixed cutter. The outer shell includes an upper arc-shaped cover and a lower rectangular cover that are connected to each other, and a feed inlet located at the front connection between the upper arc-shaped cover and the lower rectangular cover. The lower rectangular cover has a discharge outlet at its lower end. The horizontal hob is movably disposed between the upper arc-shaped cover and the lower rectangular cover. When the horizontal hob works in conjunction with the fixed cutter, the gap between the cutting edge of the horizontal hob and the cutting edge of the fixed cutter is 0.005-0.004mm. The outer end of the horizontal hob shaft is fixed to the inner wall of the housing through a bearing with a seat, and the inner end passes through the shaft hole provided on the housing and is connected to the main shaft of the power machine fixed on the housing, so that the horizontal hob rotates under the drive of the power machine. The fixed blade is a horizontal rectangular bar, which is located at the feed inlet and is connected to the horizontal roller cutter. One side of the horizontal rectangular bar is connected to the axial cutting edge on the rotating horizontal roller cutter, and the other side is connected to the output end of the fixed-length slitting assembly through the guide plate. This allows the rotating horizontal cutter to work in conjunction with the fixed cutter to cut strips of equal width into filaments of equal length, effectively improving product quality. The guide plate ensures that the strips of equal width cut by the fixed-length cutting component smoothly enter the fixed-width filament cutting component, guaranteeing the cutting quality of the fixed-width filament cutting component.

[0021] Furthermore, the horizontal hob includes a rotating shaft, a cutter roller sleeved on the rotating shaft, and a plurality of axial cutting edges that are evenly spaced around the outer surface of the cutter roller and are integral with the cutter roller. Each axial cutting edge has a height of 0.5-5mm, a total runout of less than 0.03mm, and a circumferential distance of 1-10mm between adjacent axial cutting edges.

[0022] Furthermore, the dust removal and separation mechanism includes: a rectangular shell with an inlet at the top and a outlet at the bottom; a horizontal hollow fixed shaft with a cavity inside the rectangular shell; and a rotating sleeve rotatably sleeved on the horizontal hollow fixed shaft, wherein: The top of the horizontal hollow fixed shaft is provided with an axial suction hole that communicates with the cavity; The rotating sleeve is provided with a plurality of axial grooves evenly spaced apart. The top of each axial groove is provided with a first opening that matches the feed inlet, and the bottom is provided with a second opening that matches the axial suction hole. A filter screen is provided at the second opening. The outer end of the horizontal hollow fixed axis is set as a closed end connected to the inner wall of the rectangular shell, and the inner end is set as an impurity output end that connects to the cavity and passes through the rectangular shell to connect to the air inlet pipe of the external negative pressure dust collector. The bottom of the horizontal hollow fixed axis is provided with an axial exhaust groove with an opening facing downwards that matches the second opening. An air pipe is provided on the bottom of the axial exhaust groove. The air pipe is connected to an external blower. Multiple air jet holes are provided at intervals at the bottom of the air pipe. The inner end of the rotating sleeve is fitted with a toothed ring, which meshes with a drive gear located inside the rectangular housing. The drive gear shaft passes through a shaft hole on the rectangular housing and is connected to the main shaft of the drive motor fixed outside the rectangular housing. The rotating sleeve is driven by a power unit, a drive gear, and a gear ring to rotate around a horizontal hollow fixed axis. When the axial groove on the rotating sleeve rotates to the inlet, the filament is received through the first opening. At the same time, the second opening connects with the axial suction hole at the top of the horizontal hollow fixed axis. The negative pressure gas generated by the negative pressure dust collector enters the cavity through the air inlet pipe, which can suck the impurities and dust in the filament through the filter screen, the axial suction hole, the cavity, and the air inlet pipe into the dust collector for collection and treatment. The filament is blocked by the filter screen in the axial groove and continues to rotate with the rotating sleeve. When the axial groove rotates to the axial exhaust groove, the positive pressure gas generated by the external blower will blow the filament in the axial groove downwards quickly through the air pipe and multiple jet holes at its bottom and discharge it from the discharge port.

[0023] Furthermore, the rectangular shell inlet is connected to the outlet of the fixed-width shredding mechanism, and the rectangular shell outlet is connected to the input end of the conveyor so that the shreds are sent out by the conveyor to the subsequent process.

[0024] The second objective of this invention is achieved through the following technical solution: a method for online continuous strip cutting based on an online continuous strip cutting device, characterized by comprising the following steps: 1) Automatically load the strip rolls onto the storage mechanism using a single robotic arm, manual assistance, and / or a three-coordinate robotic arm; 2) Move the strip roll from step 1) into the V-shaped or arc-shaped groove on the surface of the lifting mechanism base. After the power machine on the base lifts the base and the strip roll on it to the set height of the loading and unloading position, start the turntable of the clamping mechanism to rotate, so that one of the two support rollers on it is switched to the loading and unloading position. Then, adjust the center of the strip roll, the center of the arc-shaped through groove at the lower end of the vertical push plate of the push plate mechanism and the axis of the support roller to coincide. Start the push plate mechanism to put the core of the strip roll on the support roller to complete the loading of the strip roll. 3) Adjust the unsealing and threading mechanism to the unsealing position. At the same time, adjust the support roller and the belt roll on it to the unsealing position by rotating the turntable. Start the drive motor of the unsealing and threading mechanism to drive the swing arm and the horizontal unsealing cutter to swing until the horizontal unsealing cutter contacts the belt head of the belt roll. Drive the horizontal pressure bar to move with the horizontal unsealing cutter to clamp the belt head. Then, by rotating the turntable of the clamping mechanism and moving the feeding mechanism and the unsealing and threading mechanism up or down, adjust the horizontal pressure bar and the horizontal unsealing cutter holding the belt head to be directly above the pretreatment mechanism and splicing mechanism. Then, by the feeding mechanism, drive the unsealing and threading mechanism to move downward through the pretreatment mechanism and splicing mechanism. At the same time, the lower winding mechanism extends to insert the belt head into the slot. After the horizontal pressure bar is moved back by the power cylinder, it releases the clamp on the belt head. Then, the lower winding mechanism winds the belt head onto it and waits for splicing. The unsealing and threading of the belt material is completed. 4) After the strip is unsealed and threaded, when the moisture content of the strip is below 8% or when the strip needs to be fed, start the pretreatment mechanism to rehydrate and / or feed the feeder, selectively spray non-toxic liquid onto the new and old strips to increase the tensile strength and / or toughness of the new and old strips while adding fragrance, thus completing the pretreatment of the strip. 5) After the strip pretreatment, start the operation of the splicing mechanism's rollers, so that the two fan-shaped pressure dies on the rollers move towards each other and mesh, and then cold press the head of the new strip roll and the tail of the old strip roll into one piece. At the same time as splicing, start the winding mechanism to make the head of the new strip roll get into the strip slot on the horizontal cylinder of the winding mechanism for winding, until the head of the new strip roll is broken off and withdrawn. The spliced ​​new strip is sent out through the tensioning roller group. 6) The strip from step 5) enters the extrusion rollers through the collection trough of the waste treatment mechanism, is extruded into filaments, and sent to the subsequent recycling process; the spliced ​​new strip from step 5) enters the rehydration feeding mechanism after passing through the tensioning roller group, and is selectively sprayed with non-toxic liquid to increase the tensile strength and / or toughness of the strip while adding fragrance. 7) The strip processed in step 6) is pulled by the traction mechanism to the fixed-length slitting mechanism, which cuts the strip into fixed-width strips along the longitudinal direction; 8) The fixed-width strips cut in step 7) are fed into the fixed-width slicing mechanism, which cuts the fixed-width strips into fixed-length slices in the transverse direction; 9) The fixed-length filaments cut in step 8) enter the dust removal and separation mechanism. The negative pressure gas generated by the negative pressure dust collector of this mechanism sucks out the impurities and dust in the filaments through the filter screen, axial suction hole, cavity, and air inlet pipe into the dust collector for collection and processing. The clean filaments are blocked by the filter screen in the axial groove and continue to rotate with the rotating sleeve. When the axial groove rotates to the axial exhaust groove, the positive pressure gas generated by the external blower will blow the filaments in the axial groove downwards quickly through the air pipe and multiple air jet holes at the bottom and discharge them from the discharge port. 10) The clean filaments discharged in step 9) are conveyed to the subsequent processes via a conveyor.

[0025] The beneficial effects of this invention are as follows: Through the above technical solution, online continuous splicing of reconstituted tobacco leaves can be realized sequentially. Reconstituted tobacco leaves can be selectively humidified and fed as needed to increase the tensile strength and / or toughness of the tobacco strip, while also increasing the aroma. This greatly improves the efficiency and quality of strip cutting and shredding. Dust and impurities in the shredded material are sent to a dust collector for further processing via negative pressure gas, improving the quality of the tobacco shreds. The shredded material is then conveyed to subsequent processes. The discarded strip ends are further processed into shreds by a waste treatment mechanism and then recycled, greatly improving the utilization rate of reconstituted tobacco leaves and saving tobacco resources. The online continuous shredding equipment has a compact structure, small footprint, and high working efficiency. Furthermore, the length and width of the shredded tobacco produced from reconstituted tobacco leaves can be adjusted according to cigarette production requirements, significantly improving the uniformity of length and width and ensuring the quality of the shredded tobacco. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the feeding mechanism; Figure 3 , Figure 4 This is a schematic diagram of the opening mechanism; Figure 5 This is a schematic diagram of another rehumidifier structure; Figure 6 This is a schematic diagram of the winding mechanism; Figure 7 This is a cross-sectional view of the horizontal cylinder structure of the winding mechanism; Figure 8 This is a structural diagram of the rollers in the waste processing mechanism; Figure 9 This is a cross-sectional structural diagram of a waste treatment facility; Figure 10 Diagram of the material feeding mechanism for rehydration; Figure 11 Diagram of the traction mechanism; Figure 12 Schematic diagrams of a fixed-length slitting mechanism and a fixed-width slicing mechanism; Figure 13 A schematic diagram of a strip cut to a fixed length; Figure 14 A schematic diagram of shredded wire of fixed width; Figure 15 Diagram of the dust removal mechanism; Figure 16 This is a partial view of the dust removal mechanism; Figure 17 for Figure 16 Cross-sectional structural diagram. Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] As shown in the figure, the online continuous strip cutting device provided by the present invention includes: A feeding mechanism that is coupled to the tape roll storage mechanism 1, manipulates the tape roll to move up and down, and completes tape roll clamping and support, the feeding mechanism including: lifting mechanism 2, pushing mechanism 3 and clamping mechanisms 4 and 5; 6. An opening and threading mechanism that is connected to the feeding mechanism and operates the unwinding of the new roll; A pretreatment mechanism 8, which is connected to the unsealing and threading mechanism 6, and operates to adjust the physical and chemical properties of new and old tape rolls; A splicing mechanism 9, which is connected to the unsealing and threading mechanism 6, and controls the connection between the head of the new belt roll and the tail of the old belt roll. The upper winding mechanism 7 and the lower winding mechanism 10 are coupled with the splicing mechanism 9 and operate the winding, tearing and unwinding of the new belt roll head and the old belt roll tail. A waste processing mechanism 12, which is connected to the upper and lower winding mechanisms 7 and 10 and is used to process the waste material with a head and a tail recovered by the upper and lower winding mechanisms 7 and 10; A pretreatment mechanism 8, which is used for rehydration and / or feeding and can enhance the tensile strength and toughness of new and old strips, and is connected to the splicing mechanism 9; Tensioning roller group 13, which is coupled to splicing mechanism 9, provides constant tension to the strip; A re-moistening and / or feeding mechanism 14, which is coupled to the tensioning roller group 13, for re-moistening and / or feeding the strip; A traction mechanism 15 that is coupled with the rewetting mechanism 14 and manipulates the movement of the strip; A fixed-length slitting mechanism 16, which is coupled to the traction mechanism 15, and controls the strip to be slit into strips along the longitudinal direction; A width-cutting mechanism 17, which is coupled to the length-cutting mechanism 16, and manipulates the strip to be cut into filaments in the transverse direction; A separation and dust removal mechanism 18, which is connected to the fixed width slitting mechanism 17, and operates to separate tobacco shreds from dust and impurities; A conveyor 19, connected to the separation and dust removal mechanism 18, for conveying clean tobacco shreds to subsequent processes.

[0029] The feeding mechanism: The tape roll storage mechanism 1 includes a seat with a V-shaped or arc-shaped groove 11 on the surface, which is used to store multiple tape rolls a. The tape rolls a can be automatically loaded onto the storage mechanism 1 by a single robotic arm, manual assistance and / or a three-coordinate robotic arm. The lifting mechanism 2 includes a base 21 with a V-shaped or arc-shaped groove 23 on its surface, which is used to limit and support a roll a. The inner side of the base 21 is provided with a slider, which is slidably engaged with a vertical slide rail 24 on the frame. A power motor 22 is provided between the base 21 and the frame so that the base 21 and the roll a on it can move up and down along the vertical slide rail 24 under the drive of the power motor 22, thereby lifting the roll a to the loading and unloading position at a set height. The clamping mechanism includes a turntable 5, which is provided with at least two support rollers 41 and 42 for clamping new and old tape rolls respectively; so that when the turntable 5 of the clamping mechanism rotates, the two support rollers 41 and 42 on it exchange positions, thereby realizing the alternating placement of new and old tape rolls. The push plate mechanism 3 includes: a cantilever 33 whose inner end is slidably mounted on a horizontal slide bar 31; a vertical push plate 34 connected to the outer end of the cantilever 33; an arc-shaped through groove at the lower end of the vertical push plate 34 that is matched with the support roller 41 or 42 of the clamping mechanism; the horizontal slide bar 31 is fixed on the frame; and a horizontal power motor 32 is provided between the frame and the cantilever 32. So that when the turntable 5 rotates, the support roller 42 is rotated to the feeding position, and the power motor 22 of the lifting mechanism 2 is activated to lift the seat with V-shaped or arc-shaped groove 11 and the strip roll on it to the feeding position. When the center of the strip roll, the center of the arc-shaped through groove at the lower end of the vertical push plate 34 of the push plate mechanism 3 and the axis of the support roller 42 are aligned, the horizontal power motor 32 of the push plate mechanism 3 can drive the cantilever 33 and the vertical push plate 34 on it to move, so as to push the core of the strip roll onto the support roller 41, complete the feeding of the strip roll a, and prepare for the unwinding of the strip roll. The unsealing and threading mechanism 6 is installed outside the feeding mechanism 2. It includes: a drive motor 62 mounted on a bracket 61, a swing arm 63 connected to the output shaft of the drive motor 62, a power cylinder 66 located at the outer end of the swing arm 63, a horizontal pressure rod 64 located on the piston rod of the power cylinder 66, an L-shaped rod connected to the seat of the power cylinder 66, and a horizontal unsealing cutter head 65 located at the horizontal end of the L-shaped rod and mating with the horizontal pressure rod 64. This allows the unsealing and threading mechanism 6 to be driven to the unsealing position when the feeding mechanism 2 rises or falls. At the same time, the rotation of the turntable 5 adjusts the support rollers 41, 41 and the tape roll a on them to the unsealing position. The drive motor 62 of the unsealing and threading mechanism 6 drives the swing arm 63 and the horizontal unsealing cutter head 65 to swing until the horizontal unsealing cutter head 65 contacts the tape. The tape head is moved by the power cylinder 66 to move the horizontal pressure bar 64 to cooperate with the horizontal opening cutter head 65 to clamp the tape head. Then, by rotating the turntable 5 of the clamping mechanism and moving the feeding mechanism 2 and the opening and threading mechanism 6 up or down, the horizontal pressure bar 64 and the horizontal opening cutter head 65 clamping the tape head are adjusted to be directly above the pretreatment mechanism 8 and the splicing mechanism 9. Then, the feeding mechanism 2 drives the opening and threading mechanism 6 to move downward through the pretreatment mechanism 8 and the splicing mechanism 9. At the same time, the lower winding mechanism 10 extends to insert the tape head into the slot. After the power cylinder 66 drives the horizontal pressure bar 64 to move back and release the clamp on the tape head, the lower winding mechanism 10 winds the tape head onto it and waits for splicing, thus completing the opening and threading of the tape. The pretreatment mechanism 8 includes: two spaced transfer rollers 81 positioned along the running path of the new and old reconstituted tobacco leaf belts; and a rehydration and / or feeder 82 positioned above the transfer rollers 81, used to adjust the physical and chemical properties of the uncoiled belt material to meet the requirements of cold pressing; the physical and chemical property adjustment includes, but is not limited to: increasing the tensile strength and / or toughness of the belt material; wherein: The rehydration and / or feeder 82 includes a nozzle and a liquid delivery pipe with its inner end connected to the nozzle and its outer end connected to a liquid pump and a liquid source; so as to selectively spray non-toxic liquid onto new and old strips as needed to increase the tensile strength and / or toughness of the new and old strips. The rehydration and / or feeder may further include: a coating roller group respectively disposed outside the two transfer rollers 82 for applying non-toxic liquid to the head and tail of the new and old strip rolls, each coating roller group including: a small roller 831 in contact with the strip, a transition roller 832 located between the small roller 831 and the large roller 833, the large roller 833 being placed in a liquid tank 834 so as to selectively apply the non-toxic liquid in the liquid tank 834 to the new and old strips as needed, thereby increasing the tensile strength and / or toughness of the new and old strips; The splicing mechanism 9 includes: a pair of rollers with fan-shaped dies 92 and 93 installed on the running paths of the new and old strips, and a roller driver connected to the rollers. One of the fan-shaped dies 92 is a punch with multiple teeth arranged at intervals on its surface, and the other fan-shaped dies 93 is a smooth surface. So that after the fan-shaped dies 92 and 93 on the rollers move towards each other and mesh under the drive of the roller driver, the head of the new strip roll and the tail of the old strip roll are cold-pressed and spliced ​​into one piece. The winding mechanism is configured as an upper winding mechanism 7 and a lower winding mechanism 10, and the upper and lower winding mechanisms 7 and 10 have identical structures. Only the lower winding mechanism 10 is described here. It includes a horizontal cylinder 102 and a strip groove 101 located at the front of the horizontal cylinder 102. The strip groove 101 is an axial through groove extending from the front of the horizontal cylinder 102 towards the center, and the front end and both sides of the axial through groove are open. The front of the horizontal cylinder 102 extends forward and is suspended in the air, while the rear passes through the anti-reverse ring 103 and is connected to the telescopic rotation mechanism. The anti-reverse ring 103 is a circular ring that slides and fits with the horizontal cylinder 102. The inner diameter of the circular ring is adapted to the outer diameter of the horizontal cylinder 102. The anti-reverse ring 103 is fixed to the frame by the fixing seat 104 of the outer sleeve so that the belt head or belt tail can pass through the horizontal cylinder 102 through the belt slot 101, thereby facilitating the belt head or belt tail to be wound on the horizontal cylinder 102. The anti-reverse ring 103 can block the belt head or belt tail from rolling a when the horizontal cylinder 102 moves backward, so that the belt head or belt tail roll a is detached from the horizontal cylinder 102 for easy collection. The telescopic rotation mechanism includes a first power unit 105, which is coaxially connected to the rear end of the horizontal cylinder 102 via its output shaft. The first power unit 105 is fixed on a sliding seat 106. The sliding seat 106 is slidably connected to a slide rail 1071 on a support frame 107 via sliders located on both sides of its bottom. The support frame 107 is fixed to the machine frame. A horizontal lead screw 108 is provided between the sliding seat 106 and the support frame 107. The two ends of the horizontal lead screw 108 are respectively connected to corresponding bearings 1072 on the support frame 107. The horizontal lead screw 108 is connected to the first power unit 105. The outer end of the horizontal lead screw 108 passes through the screw hole on the sliding seat 106 and the seated bearing 1073 on the outside of the support frame 107 in sequence, and is then connected to the second power unit 109. This allows the first power unit 105 to drive the horizontal cylinder 102 to rotate, and the second power unit 109 to drive the horizontal lead screw 108 to move the sliding seat 106, the first power unit 105 on it, and the horizontal cylinder 102 back and forth. A linear cylinder or linear electric cylinder can also be provided between the sliding seat 106 and the support frame 107. The cylinder seat of the linear cylinder or linear electric cylinder is fixed on the outside of the support frame 107, and the piston rod end is fixed on the sliding seat 106 so that the linear cylinder or linear electric cylinder can drive the sliding seat 106 and the horizontal cylinder 102 on it to move forward and backward. The waste processing mechanism 12 includes: a collection trough 121 connected to but not connected to the winding mechanism; and a pair of extrusion rollers connected to the discharge port of the collection trough 121. The left horizontal roller 122 and the right horizontal roller 123 of the extrusion rollers rotate in opposite directions. The extrusion rollers are movably mounted on the frame via a conventional roller drive mechanism. The left and right horizontal rollers 122 and 123 are each provided with a plurality of annular protrusions 124 evenly spaced from end to end. Between each pair of adjacent annular protrusions 124 is an annular groove with a diameter smaller than that of the annular protrusion 124. Each annular protrusion 124 has a tooth 125 parallel to the roller shaft on its circumference. The annular protrusion 124 on the left horizontal roller 122 meshes with the annular groove on the right horizontal roller 123. Similarly, the annular protrusion 124 on the right horizontal roller 123 meshes with the annular groove on the left horizontal roller 122. The meshing gap is 0.02mm, so that the strip can be extruded into strips of equal width through the meshing annular protrusion 124 and annular groove. The cutting teeth 125 on the annular protrusion 124 of the left horizontal roller 122 also engage with the annular groove on the right horizontal roller 123. Similarly, the cutting teeth 125 on the annular protrusion 124 of the right horizontal roller 123 also engage with the annular groove on the left horizontal roller 122. The cutting teeth 125 on each annular protrusion 124 are evenly distributed and have the same number, so that the strips that are extruded into equal widths can be cut into filaments of equal lengths by the intermittently meshing cutting teeth 125 and annular grooves.

[0030] The teeth 125 on each annular protrusion 124 are not uniformly distributed and are of different numbers, so that the extruded strip of equal width can be cut into filaments of unequal length by the interlocking teeth 125 and the annular groove.

[0031] The upper part of the left horizontal roller 122 and the right horizontal roller 123 are set as the inlet end connected to the outlet of the collection trough 121, and the lower part is set as the outlet end. The outlet end is provided with a guide plate that is matched with it. The guide plate is fixed to the frame by the connector so that the collected strip material is squeezed into filaments by the squeezing of the left horizontal roller 122 and the right horizontal roller 123, which facilitates subsequent recycling and can be directly used for subsequent production without additional processing, effectively improving the recycling rate.

[0032] The guide plate includes left and right inclined plates 127, which are spaced apart at the top and extend outward to both sides at the bottom. The lower ends of the left and right inclined plates 127 are connected to left and right horizontal plates 128 extending outward horizontally, respectively. The upper ends of the left and right inclined plates 127 are slidably attached to left and right horizontal rollers 122 and 123. The gap 120 at the upper ends of the left and right inclined plates 127 is connected to the discharge end of the extrusion rollers. The length of the guide plate is adapted to the length of the extrusion rollers so that the extruded filaments can be smoothly removed from the extrusion rollers for easy collection.

[0033] The collection trough 121 is connected to the upwardly extending guide pipe 11. The upper end of the guide pipe 11 is connected to the tail of the old tape roll, and the lower end is connected to the collection trough. This allows the tail of the old tape roll to fall accurately into the collection trough 121 through the guide pipe 11, and also allows the tail to avoid obstruction by other components on the frame when it falls, thus preventing the tail from falling off course due to obstruction. The tensioning roller group 13 is a conventional mechanism used to tension the strip and realize online constant tension control of the strip; The rehydration and feeding mechanism 14 is used to complete the online rehydration and feeding of the front and back sides of the strip. It includes a sealing cover 141 with perforations through which the strip passes, and an upper spray head 142 and a lower spray head 143 arranged inside the sealing cover 141 to spray and humidify the front and back sides of the strip. The upper and lower spray heads are connected to one end of a liquid supply pipe, and the other end of the liquid supply pipe extends outward through the corresponding through hole on the sealing cover 141 and is connected to a liquid pump and a liquid source. A moisture detector is set on the outside of the perforations of the sealing cover 141 to detect the moisture of the strip so that the rehydration liquid or fragrance can be sprayed onto the front and back sides of the strip in a timely manner to meet the needs of cigarette production. The rehydration feeding mechanism 14 can also be configured as the same coating roller group as the pretreatment mechanism 8. The coating roller group applies rehydration liquid or fragrance to the front and back sides of the strip in a timely manner to meet the needs of cigarette production. The traction mechanism 15 is used to stably provide traction force for the movement of the strip. It includes an upper traction roller 152 and a lower traction roller 151. The upper traction roller 152 is connected to an upper power cylinder 153 and is used to drive the upper traction roller 152 to swing downward and cooperate with the lower traction roller 151 to press the strip. The lower traction roller 151 is connected to the output shaft of a motor 154 and is used to drive the lower traction roller 151 to rotate, thereby traction and supporting the movement of the strip. The fixed-length slitting mechanism 16 is used to slit the strip into strips of a fixed width along the longitudinal direction (e.g., ...). Figure 11 It includes a support roller 161, a disc cutter roller 163, and a plurality of disc cutters 162 fixed on the disc cutter roller 163, wherein: A spacer 164 is provided between each pair of disc cutters 162 to adjust the spacing between them, thereby adjusting the strip width. The support roller 161 is a hollow negative pressure roller with several negative pressure holes 1651. The support roller 161 is connected to an external negative pressure source (such as an air compressor) through a negative pressure pipe so that a negative pressure is formed on the surface of the hollow negative pressure roller to suck up the strip a, thus facilitating the cutting of the strip a. At the same time, the support roller 161 is also provided with a cutter groove 1611 that cooperates with the disc cutters 162. The support roller 161 is connected to a guide plate 165, which is used for conveying and guiding the strip to transition the cut strip (such as...) into a fixed width strip. Figure 13 The strip is conveyed to the fixed-length shredding mechanism 17 to prevent it from slipping. The fixed-width slicing mechanism 17 is used to cut a fixed-width strip into fixed-length slices (e.g., ...) in one pass along the transverse direction. Figure 14 It includes a housing 170 fixed to a frame, a horizontal hob 171 movably disposed within the housing 170, and a fixed cutter 172 disposed at the input end in front of the horizontal hob 171. The output ends are located below the horizontal hob 171 and the fixed cutter 172. The outer shell 170 includes an upper arc-shaped cover and a lower rectangular cover that are connected to each other, and a feed inlet located at the front connection between the upper arc-shaped cover and the lower rectangular cover. The lower rectangular cover has a discharge outlet at its lower end. The horizontal hob 171 is movably disposed between the upper arc-shaped cover and the lower rectangular cover. When the horizontal hob 171 and the fixed cutter 172 work together, the gap between the cutting edge of the horizontal hob 171 and the cutting edge of the fixed cutter 172 is 0.005-0.004mm. The outer end of the rotating shaft 173 of the horizontal hob 171 is fixed to the inner wall of the outer shell 170 through a bearing seat, and the inner end passes through the shaft hole provided on the outer shell 170 and is connected to the main shaft of the power machine (motor) 174 fixed on the outer shell 170, so that the horizontal hob 171 rotates under the drive of the power machine 174. The fixed blade 172 is a horizontal rectangular bar, which is located at the feed inlet and is connected to the horizontal roller blade 171. One side of the horizontal rectangular bar is connected to the axial cutting edge on the rotating horizontal roller blade 171, and the other side is connected to the output end of the fixed length slitting assembly through the guide plate 165. In order to use the rotating horizontal cutter 171 and the fixed cutter 172 to cut the strip of equal width into filaments of equal length, thereby effectively improving product quality, the guide plate 165 can make the strip of equal width cut by the fixed length cutting component smoothly enter the fixed width filament cutting component, ensuring the cutting quality of the fixed width filament cutting component; The horizontal hob 171 includes a rotating shaft 173, a cutter roller sleeved on the rotating shaft 173, and a plurality of axial cutting edges 175 that are evenly spaced around the outer surface of the cutter roller and are integral with the cutter roller. Each axial cutting edge 175 has a height of 0.5-5mm, a total runout of less than 0.03mm, and a circumferential distance of 1-10mm between adjacent axial cutting edges 175.

[0034] The dust removal and separation mechanism 18 includes: a rectangular shell 181 with a feed inlet 1811 at the top and a discharge outlet 1812 at the bottom; a horizontal hollow fixed shaft 183 with a cavity 184 is provided inside the rectangular shell 181; and a rotating sleeve 182 is rotatably sleeved on the horizontal hollow fixed shaft 183, wherein: The top of the horizontal hollow fixed shaft 183 is provided with an axial suction hole 1831 that communicates with the cavity 184; The rotating sleeve 182 is provided with a plurality of axial grooves 1821 evenly and at intervals. Each axial groove 1821 has a first opening at the top that is matched with the feed port 1811 and a second opening at the bottom that is rotatably matched with the axial suction hole 1831. A filter screen 185 is provided at the second opening. The outer end of the horizontal hollow fixed axis 183 is a closed end connected to the inner wall of the rectangular shell 181, and the inner end is an impurity output end that connects to the cavity 184 and passes through the rectangular shell 181 to connect to the air inlet pipe 187 of the external negative pressure dust collector 188. The bottom of the horizontal hollow fixed axis 183 is provided with an axial exhaust groove 1832 with an opening facing downward, which is matched with the second opening. An air pipe 186 is provided on the bottom of the axial exhaust groove 1832. The air pipe 186 is connected to an external blower. The bottom of the air pipe 186 is provided with multiple air jet holes at intervals. The inner end of the rotating sleeve 182 is fitted with a toothed ring 1822, which meshes with the drive gear 1823 located inside the rectangular housing 181. The axle of the drive gear 1823 passes through the shaft hole on the rectangular housing 181 and is connected to the main shaft of the drive motor 189 (motor) fixed outside the rectangular housing 181. So that the rotating sleeve 182 can be driven to rotate around the horizontal hollow fixed shaft 183 by the power machine 189, the drive gear 1823, and the gear ring 1822. When the axial groove 1821 on the rotating sleeve 182 rotates to the feed port 1811, the filament is received through the first opening. At the same time, after the second opening is connected to the axial suction hole 1831 at the top of the horizontal hollow fixed shaft 183, the negative pressure gas generated by the negative pressure dust collector 188 enters the cavity 184 through the air inlet pipe 187, which can remove impurities and dust in the filament. The filaments are drawn through the filter screen 185, axial suction hole 1831, cavity 184, and air inlet pipe 187 into the dust collector 188 for collection and processing. The filaments are blocked by the filter screen 185 in the axial groove 1821 and continue to rotate with the rotating sleeve 182. When the axial groove 1821 rotates to the axial exhaust groove 1832, the positive pressure gas generated by the external blower will blow the filaments in the axial groove 1821 downwards and quickly away through the air pipe 186 and multiple air jet holes at its bottom, and discharge them from the discharge port 1812.

[0035] As one embodiment, the inlet 1811 of the rectangular housing 181 is connected to the outlet of the fixed-width shredding mechanism 17, and the outlet 1812 of the rectangular housing 181 is connected to the input end of the conventional conveyor 19 so as to send the shreds out to the subsequent process via the conveyor 19.

[0036] The method for online continuous strip cutting based on an online continuous strip cutting device provided by the present invention is characterized by comprising the following steps: 1) The tape roll a is automatically fed to the storage mechanism 1 by a single robotic arm and manual assistance; 2) Move the strip roll a from step 1) into the V-shaped groove 23 on the surface of the base 21 of the lifting mechanism 2. After the power machine 22 on the base 21 lifts the base 21 and the strip roll a to the set height of the loading and unloading position, start the turntable 5 of the clamping mechanism to rotate, so that one of the two support rollers 41 and 42 on it is exchanged to the loading and unloading position. Adjust the center of the strip roll a, the center of the arc-shaped through groove at the lower end of the vertical push plate 34 of the push plate mechanism 3 and the axis of the support roller 41 to coincide. Start the action of the push plate mechanism 3, and put the core of the strip roll a onto the support roller 42 through the vertical push plate 34 to complete the loading of the strip roll a. 3) Adjust the opening and threading mechanism 6 to the opening position. Simultaneously, adjust the support roller 42 and the tape roll a on it to the opening position by rotating the turntable 5. Start the drive motor 62 of the opening and threading mechanism 6 to drive the swing arm 63 and the horizontal opening cutter head 65 to swing until the horizontal opening cutter head 65 contacts the tape head of the tape roll a. Drive the horizontal paper pressing rod 64 to move through the power cylinder 66 to cooperate with the horizontal opening cutter head 65 to clamp the tape head. Then, the turntable 5 of the clamping mechanism rotates and the lifting mechanism 2 and the opening and threading mechanism 6 move up or down. Move and adjust the horizontal pressure bar 64 and the horizontal unsealing cutter 65 holding the strip head to be directly above the pretreatment mechanism 8 and the splicing mechanism 9. Then, the feeding mechanism drives the unsealing and threading mechanism 6 to move downward through the pretreatment mechanism 8 and the splicing mechanism 9. At the same time, the lower winding mechanism 10 extends to insert the strip head into the slot 101. The power cylinder 66 drives the horizontal pressure bar 64 to move back and release the clamp on the strip head. The lower winding mechanism 10 then winds the strip head onto it and waits for splicing, thus completing the unsealing and threading of the strip. 4) After strip a is unsealed and threaded, when the moisture content of strip a is less than 8% or when the strip needs to be fed, the pretreatment mechanism 8 is activated to rehydrate and / or feed the feeder, selectively spraying non-toxic liquid onto the new and old strip a, increasing the tensile strength and / or toughness of the new and old strip a while adding fragrance, thus completing the pretreatment of strip a. 5) After the strip pretreatment, start the operation of the rollers of the splicing mechanism 9, so that the two fan-shaped pressing dies 92 and 93 on the rollers move towards each other and mesh, and then cold press the head of the new strip roll and the tail of the old strip roll into one piece. At the same time as splicing, start the action of the lower winding mechanism 10, so that the head of the new strip roll is inserted into the strip groove 101 on the horizontal cylinder 102 of the lower winding mechanism 10 for winding, until the head of the new strip roll is broken off and withdrawn. The spliced ​​new strip a is sent out through the tension roller group 13. 6) The strip from step 5) enters the extrusion rollers 122 and 123 through the collection trough 121 of the waste treatment mechanism 12, is extruded into filaments, and sent to the subsequent recycling process; the spliced ​​new strip a from step 5) enters the rehydration feeding mechanism 14 after passing through the tension roller group 13, and is selectively sprayed with non-toxic liquid to increase the tensile strength and / or toughness of the strip while adding fragrance. 7) The strip a processed in step 6) is pulled by the traction mechanism 15 to the fixed-length slitting mechanism 16, and the strip is slitted into fixed-width strips along the longitudinal direction; 8) The fixed-width strips cut in step 7) are fed into the fixed-width slicing mechanism 17, which cuts the fixed-width strips into fixed-length slices along the transverse direction. 9) The cut filaments from step 8) enter the dust removal and separation mechanism 18. The negative pressure gas generated by the negative pressure dust collector 188 of this mechanism draws the impurities and dust in the filaments through the filter screen 185, axial suction hole 1831, cavity 184, and air inlet pipe 187 into the dust collector 188 for collection and processing. The clean filaments are blocked by the filter screen 185 in the axial groove 1821 and continue to rotate with the rotating sleeve 182. When the axial groove 1821 rotates to the axial exhaust groove 1832, the positive pressure gas generated by the external blower will blow the filaments in the axial groove 1821 downwards quickly through the air pipe 186 and multiple air jet holes at its bottom, and discharge them from the discharge port 1812. 10) The clean filaments discharged in step 9) are sent to the subsequent process via conveyor 19.

[0037] In summary, the online continuous shredding equipment and method for reconstituted tobacco provided by this invention has a compact overall structure and is easy to use. It can continuously and uniformly shred rolled reconstituted tobacco online, which not only improves production efficiency, but also enhances the continuity of production and the stability of product quality.

[0038] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A strip continuous online slitting device, characterized in that... include: A feeding mechanism coupled to a tape roll storage mechanism, which manipulates the tape roll to move up and down and performs tape roll clamping and support, the feeding mechanism including: a lifting mechanism, a pushing mechanism and a clamping mechanism; An unsealing and threading mechanism that is connected to the feeding mechanism and operates the unwinding of new strip rolls; A pretreatment mechanism that is connected to the feeding mechanism and operates to adjust the physical and chemical properties of new and old belt rolls; A splicing mechanism that is connected to the pre-treatment unit and manipulates the new belt roll head and the old belt roll tail to form a single unit; A winding mechanism that is coupled with a splicing mechanism to operate the winding, breaking, and unwinding of the new belt roll head and the old belt roll tail; A waste processing mechanism for handling the head and tail sections recycled by the winding mechanism, which is connected to the winding mechanism. Tensioning rollers that are coupled with the splicing mechanism to provide constant tension to the strip; A re-moistening and / or feeding mechanism that is connected to the tensioning roller assembly to re-moisten and / or feed the strip; A traction mechanism that is coupled with a rewetting mechanism to control the movement of the strip; A fixed-length slitting mechanism that is coupled with a traction mechanism to control the longitudinal cutting of the belt into strips; A width-cutting mechanism that is coupled with a length-cutting mechanism to manipulate the strip to be cut into filaments in the transverse direction; A separation and dust removal mechanism that is connected to a fixed-width slitting mechanism to control the separation of tobacco shreds from dust and impurities; A conveyor connected to a dust separation and removal mechanism for transporting clean tobacco shreds to subsequent processes.

2. The strip continuous online slitting equipment according to claim 1, characterized in that... The feeding mechanism: The tape roll storage mechanism includes a seat with V-shaped or arc-shaped grooves on the surface for storing multiple tape rolls. The tape rolls are automatically loaded onto the storage mechanism by a single robotic arm with manual assistance and / or a three-coordinate robotic arm. The lifting mechanism includes a base with a V-shaped or arc-shaped groove on its surface for limiting and supporting a roll of tape. The inner side of the base is provided with a slider that is slidably engaged with a vertical slide rail on the frame. A power unit is provided between the base and the frame so that the base and the roll of tape on it can move up and down along the vertical slide rail under the drive of the power unit, thereby lifting the roll of tape to a set height for loading and unloading. The clamping mechanism includes a turntable with at least two support rollers that clamp new and old tape rolls respectively, so that when the turntable of the clamping mechanism rotates, the two support rollers on it exchange positions, thereby realizing the alternating placement of new and old tape rolls. The pusher mechanism includes: a cantilever whose inner end is slidably mounted on a horizontal slide bar; a vertical push plate connected to the outer end of the cantilever; an arc-shaped through groove at the lower end of the vertical push plate that matches the support roller of the clamping mechanism; the horizontal slide bar is fixed on the frame; and a horizontal power motor is set between the frame and the cantilever to push the core of the roll onto the support roller to complete the feeding of the roll.

3. The strip continuous online slitting equipment according to claim 1, characterized in that... The unsealing and threading mechanism is installed on the outside of the lifting mechanism and includes: a drive motor mounted on the bracket, a swing arm connected to the output shaft of the drive motor, a power cylinder located at the outer end of the swing arm, a horizontal paper-pressing rod located on the piston rod of the power cylinder, an L-shaped rod connected to the power cylinder seat, and a horizontal unsealing cutter head located at the horizontal end of the L-shaped rod and mating with the horizontal paper-pressing rod.

4. The strip continuous online slitting equipment according to claim 1, characterized in that... The pretreatment mechanism includes: two spaced transfer rollers positioned along the running path of the new and old reconstituted tobacco leaf belts; and a rehydration and / or feeder positioned above the transfer rollers, used to adjust the physical and chemical properties of the uncoiled belt material to meet the requirements of cold pressing; the physical and chemical property adjustment includes, but is not limited to: increasing the tensile strength and / or toughness of the belt material; wherein: The rehydration and / or feeder includes a nozzle and a liquid delivery pipe whose inner end is connected to the nozzle and whose outer end is connected to a liquid pump and a liquid source. Alternatively, the rehydration and / or feeder may also include: a coating roller group respectively disposed outside the two transfer rollers for applying non-toxic liquid to the head and tail of the new and old strip rolls, each coating roller group including: a small roller in contact with the strip, a transition roller located between the small roller and the large roller, and the large roller placed in the liquid tank; This allows for the selective application of non-toxic liquid from the liquid tank onto new and old strips as needed, increasing the tensile strength and / or toughness of the new and old strips.

5. The strip continuous online slitting equipment according to claim 1, characterized in that... The winding mechanism is configured as an upper winding mechanism and / or a lower winding mechanism. Each winding mechanism includes: a horizontal cylinder, a strip groove located at the front of the horizontal cylinder, the strip groove being an axial through groove extending from the front of the horizontal cylinder towards the center, the front end and both sides of the axial through groove being open, wherein: The front part of the horizontal cylinder extends forward and is suspended in the air, while the rear part passes through the anti-reverse ring and is connected to the telescopic and rotating mechanism. The anti-reverse ring is a circular ring that slides and fits into the horizontal cylinder. The inner diameter of the circular ring is adapted to the outer diameter of the horizontal cylinder. The anti-reverse ring is fixed to the frame by the fixing seat of the outer sleeve. The telescopic rotation mechanism includes a first power unit, which is coaxially connected to the rear end of the horizontal cylinder through its output shaft. The first power unit is fixed on a sliding seat, which is slidably connected to a slide rail on a support frame through sliders located on both sides of its bottom. The support frame is fixed on the machine frame. A horizontal lead screw is provided between the sliding seat and the support frame. The two ends of the horizontal lead screw are respectively connected to the corresponding bearings on the support frame. The outer end of the horizontal lead screw passes through the screw hole on the sliding seat and the bearing on the outside of the support frame in sequence, and then is connected to the second power unit. A linear cylinder or linear electric cylinder can also be provided between the sliding seat and the support frame, with the cylinder seat of the linear cylinder or linear electric cylinder fixed to the outside of the support frame and the piston rod end fixed to the sliding seat.

6. The strip continuous online slitting equipment according to claim 1, characterized in that... The waste processing mechanism includes: a collection trough connected to but not connected to the winding mechanism; and a pair of extrusion rollers connected to but not connected to the discharge port of the collection trough. The left and right horizontal rollers of the extrusion rollers rotate in opposite directions. The extrusion rollers are movably mounted on the frame via a roller drive mechanism. The left and right horizontal rollers are each provided with several annular protrusions evenly spaced from end to end. Between each pair of adjacent annular protrusions is an annular groove with a diameter smaller than the annular protrusion. Each annular protrusion has teeth parallel to the roller shaft on its circumference. The annular protrusion on the left horizontal roller meshes with the annular groove on the right horizontal roller, and similarly, the annular protrusion on the right horizontal roller meshes with the annular groove on the left horizontal roller, with a meshing gap of 0.02 mm, so that the strip can be extruded into strips of equal width through the meshing annular protrusion and annular groove. The blades on the annular protrusion of the left horizontal roller also mesh with the annular groove on the right horizontal roller. Similarly, the blades on the annular protrusion of the right horizontal roller also mesh with the annular groove on the left horizontal roller. The blades on each annular protrusion are evenly distributed and have the same number, so that the strips that are extruded into equal widths can be cut into filaments of equal lengths by the intermittent meshing blades and annular grooves. The teeth on each annular protrusion are unevenly distributed and of different numbers, so that the strips that are compressed into equal widths can be cut into filaments of different lengths by the interlocking teeth and annular grooves.

7. The strip continuous online slitting equipment according to claim 6, characterized in that... The left and right horizontal rollers are configured with an inlet at the top, connecting to the outlet of the collection trough, and an outlet at the bottom. A guide plate is provided at the outlet, and the guide plate is fixed to the frame via a connector. The guide plate includes left and right inclined plates spaced apart at the upper end and extending outward to both sides at the lower end. The lower ends of the left and right inclined plates are connected to left and right horizontal plates extending outward horizontally, respectively. The upper ends of the left and right inclined plates slide against the left and right horizontal rollers. The gap between the upper ends of the left and right inclined plates is connected to the discharge end of the extrusion rollers. The length of the guide plate is adapted to the length of the extrusion rollers so that the extruded filaments can be smoothly released from the extrusion rollers for easy collection.

8. The strip continuous online slitting equipment according to claim 1, characterized in that... The dust removal and separation mechanism includes: a rectangular shell with an inlet at the top and a outlet at the bottom; a horizontal hollow fixed shaft with a cavity inside the rectangular shell; and a rotating sleeve rotatably sleeved on the horizontal hollow fixed shaft, wherein: The top of the horizontal hollow fixed shaft is provided with an axial suction hole that communicates with the cavity; The rotating sleeve is provided with a plurality of axial grooves evenly spaced apart. The top of each axial groove is provided with a first opening that matches the feed inlet, and the bottom is provided with a second opening that matches the axial suction hole. A filter screen is provided at the second opening. The outer end of the horizontal hollow fixed axis is set as a closed end connected to the inner wall of the rectangular shell, and the inner end is set as an impurity output end that connects to the cavity and passes through the rectangular shell to connect to the air inlet pipe of the external negative pressure dust collector. The bottom of the horizontal hollow fixed axis is provided with an axial exhaust groove with an opening facing downwards that matches the second opening. An air pipe is provided on the bottom of the axial exhaust groove. The air pipe is connected to an external blower. Multiple air jet holes are provided at intervals at the bottom of the air pipe. The inner end of the rotating sleeve is fitted with a toothed ring, which meshes with a drive gear located inside the rectangular housing. The drive gear shaft passes through a shaft hole on the rectangular housing and is connected to the main shaft of the drive motor fixed outside the rectangular housing.

9. The strip continuous online slitting equipment according to claim 1, characterized in that... The fixed-width slicing mechanism includes: a housing fixed to the frame, a horizontal roller cutter movably disposed within the housing, and a fixed cutter disposed on the housing and located at the input end of the horizontal roller cutter. The output end is located below the horizontal roller cutter and the fixed cutter. The outer shell includes an upper arc-shaped cover and a lower rectangular cover that are connected to each other, and a feed inlet located at the front connection between the upper arc-shaped cover and the lower rectangular cover. The lower rectangular cover has a discharge outlet at its lower end. The horizontal hob is movably disposed between the upper arc-shaped cover and the lower rectangular cover. When the horizontal hob works in conjunction with the fixed cutter, the gap between the cutting edge of the horizontal hob and the cutting edge of the fixed cutter is 0.005-0.004mm. The outer end of the horizontal hob shaft is fixed to the inner wall of the housing through a bearing with a seat, and the inner end passes through the shaft hole provided on the housing and is connected to the main shaft of the power machine fixed on the housing, so that the horizontal hob rotates under the drive of the power machine. The fixed blade is a horizontal rectangular bar, which is located at the feed inlet and is connected to the horizontal roller cutter. One side of the horizontal rectangular bar is connected to the axial cutting edge on the rotating horizontal roller cutter, and the other side is connected to the output end of the fixed-length slitting mechanism through the guide plate. The horizontal hob includes a rotating shaft, a cutter roller sleeved on the rotating shaft, and a plurality of axial cutting edges that are evenly spaced around the outer surface of the cutter roller and are integral with the cutter roller. Each axial cutting edge has a height of 0.5-5mm, a total runout of less than 0.03mm, and a circumferential distance of 1-10mm between adjacent axial cutting edges.

10. A method for online continuous strip cutting based on the strip online continuous strip cutting equipment according to claim 1, characterized in that... Includes the following steps: 1) Automatically load the strip rolls onto the storage mechanism using a single robotic arm, manual assistance, and / or a three-coordinate robotic arm; 2) Move the strip roll from step 1) into the V-shaped or arc-shaped groove on the surface of the lifting mechanism base. After the power machine on the base lifts the base and the strip roll on it to the set height of the loading and unloading position, start the turntable of the clamping mechanism to rotate, so that one of the two support rollers on it is switched to the loading and unloading position. Then, adjust the center of the strip roll, the center of the arc-shaped through groove at the lower end of the vertical push plate of the push plate mechanism and the axis of the support roller to coincide. Start the push plate mechanism to put the core of the strip roll on the support roller to complete the loading of the strip roll. 3) Adjust the unsealing and threading mechanism to the unsealing position. At the same time, adjust the support roller and the belt roll on it to the unsealing position by rotating the turntable. Start the drive motor of the unsealing and threading mechanism to drive the swing arm and the horizontal unsealing cutter to swing until the horizontal unsealing cutter contacts the belt head of the belt roll. Drive the horizontal pressure bar to move with the horizontal unsealing cutter to clamp the belt head. Then, by rotating the turntable of the clamping mechanism and moving the feeding mechanism and the unsealing and threading mechanism up or down, adjust the horizontal pressure bar and the horizontal unsealing cutter holding the belt head to be directly above the pretreatment mechanism and splicing mechanism. Then, by the feeding mechanism, drive the unsealing and threading mechanism to move downward through the pretreatment mechanism and splicing mechanism. At the same time, the lower winding mechanism extends to insert the belt head into the slot. After the horizontal pressure bar is moved back by the power cylinder, it releases the clamp on the belt head. Then, the lower winding mechanism winds the belt head onto it and waits for splicing. The unsealing and threading of the belt material is completed. 4) After the strip is unsealed and threaded, when the moisture content of the strip is below 8% or when the strip needs to be fed, start the pretreatment mechanism to rehydrate and / or feed the feeder, selectively spray non-toxic liquid onto the new and old strips to increase the tensile strength and / or toughness of the new and old strips while adding fragrance, thus completing the pretreatment of the strip. 5) After the strip pretreatment, start the operation of the splicing mechanism's rollers, so that the two fan-shaped pressure dies on the rollers move towards each other and mesh, and then cold press the head of the new strip roll and the tail of the old strip roll into one piece. At the same time as splicing, start the winding mechanism to make the head of the new strip roll get into the strip slot on the horizontal cylinder of the winding mechanism for winding, until the head of the new strip roll is broken off and withdrawn. The spliced ​​new strip is sent out through the tensioning roller group. 6) The strip from step 5) enters the extrusion rollers through the collection trough of the waste treatment mechanism, is extruded into filaments, and sent to the subsequent recycling process; the spliced ​​new strip from step 5) enters the rehydration feeding mechanism after passing through the tensioning roller group, and is selectively sprayed with non-toxic liquid to increase the tensile strength and / or toughness of the strip while adding fragrance. 7) The strip processed in step 6) is pulled by the traction mechanism to the fixed-length slitting mechanism, which cuts the strip into fixed-width strips along the longitudinal direction; 8) The fixed-width strips cut in step 7) are fed into the fixed-width slicing mechanism, which cuts the fixed-width strips into fixed-length slices in the transverse direction; 9) The fixed-length filaments cut in step 8) enter the dust removal and separation mechanism. The negative pressure gas generated by the negative pressure dust collector of this mechanism sucks out the impurities and dust in the filaments through the filter screen, axial suction hole, cavity, and air inlet pipe into the dust collector for collection and processing. The clean filaments are blocked by the filter screen in the axial groove and continue to rotate with the rotating sleeve. When the axial groove rotates to the axial exhaust groove, the positive pressure gas generated by the external blower will blow the filaments in the axial groove downwards quickly through the air pipe and multiple air jet holes at the bottom and discharge them from the discharge port. 10) The clean filaments discharged in step 9) are conveyed to the subsequent processes via a conveyor.

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