Non-stop unwinding, pretreatment and crimping device and method

Abstract

The invention provides a non-stop unwinding, pretreatment and crimping device and method, which comprises a clamping mechanism and a cold crimping mechanism, and is characterized in that the non-stop unwinding, pretreatment and crimping device also comprises a pretreatment mechanism arranged below the clamping mechanism, the pretreatment mechanism comprises two spaced transfer rollers arranged on a new and old reconstituted tobacco belt running path, and a moisture regaining device arranged above the transfer rollers, the heater is arranged below the transfer roller; and the lower winding mechanism is arranged below the cold pressing joint mechanism and comprises a lower winding roller for winding the head of the new reconstituted tobacco belt and is used for completing the pull-apart of the head of the new reconstituted tobacco belt when the head and the tail of the new reconstituted tobacco belt are subjected to cold pressing splicing. Clamping and supporting of new and old reel-shaped reconstituted tobacco belts are automatically completed without shutdown, the tensile strength or / and toughness and fragrance of the reconstituted tobacco belts are selectively increased according to needs, and the quality of reconstituted tobacco is improved.

Description

Technical Field

[0001] This invention provides a device and method for unwinding, pre-treatment, and pressing without shutting down the machine, relating to the design and manufacturing technology of reconstituted tobacco splicing equipment. Technical Background

[0002] Reconstituted tobacco is produced by recycling tobacco waste such as tobacco stems, dust, and broken tobacco leaves, adding additives, and then processing it into rolled tobacco sheets using papermaking methods. To fully utilize these tobacco wastes, rolled reconstituted tobacco has been used as a raw material in tobacco processing. Current technology involves placing the rolled reconstituted tobacco sheets on a traditional unrolling machine. After unrolling, the sheets are fed into subsequent cutting and shredding processes. When a roll of reconstituted tobacco is unrolled and the feeding is almost complete, the unrolling machine must be stopped, and a new roll of reconstituted tobacco must be replaced. The beginning of the new roll is then manually glued to the end of the old roll. This process is not only slow, but the stoppage of the unrolling machine causes significant changes in conveyor tension, directly affecting the product quality in subsequent cutting and shredding processes, and resulting in a waste of reconstituted tobacco raw materials. If the first and last parts of a rolled reconstituted tobacco leaf are mechanically pressed together, the soft texture, coarse fibers, and easy moisture loss of the reconstituted tobacco leaf, coupled with the requirement that the proportion of binder in the components must be kept as low as possible, especially when the moisture content of the tobacco leaf is below 8% or above 16%, make it difficult to cold-press the first and last parts of the reconstituted tobacco leaf together into a pressed section with a certain tensile strength under purely physical pressing. This leads to breakage or peeling of the pressed section during subsequent processing, causing downtime and affecting continuous production. Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0003] The present invention aims to provide a non-stop unwinding, pre-treatment and pressing device, especially a non-stop unwinding, pre-treatment and pressing device for cylindrical reconstituted tobacco leaves, and also provides a non-stop unwinding, pre-treatment, pressing and winding method based on the aforementioned non-stop unwinding, pre-treatment and pressing device, so as to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention provides a non-stop unwinding, pre-treatment, and crimping device, comprising: A clamping mechanism, comprising at least two spaced-apart support rollers and a support roller driver connected to the roller shaft of the support rollers, for clamping, supporting, and rotating new and old roll-shaped reconstituted tobacco leaf strips; The cold pressing joining mechanism includes: a pair of rollers with pressing dies installed on the running paths of the new and old reconstituted tobacco leaf belts, and a roller driver connected to the rollers, which causes the pressing dies on the rollers to move towards each other and mesh, thereby cold pressing and splicing the head of the new reconstituted tobacco leaf belt and the tail of the old reconstituted tobacco leaf belt into one piece. Its features also include: A pretreatment mechanism located below the clamping mechanism includes: two spaced transfer rollers on the running path of the new and old reconstituted tobacco strips, a dehumidifier located above the transfer rollers, and a heater located below the transfer rollers, for adjusting the physical and chemical properties of the unwound cylindrical reconstituted tobacco strip 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 reconstituted tobacco strip; The lower winding mechanism located below the cold pressing and joining mechanism includes: a lower winding roller for winding the head of the new reconstituted tobacco strip, used to tension the new reconstituted tobacco strip, and to complete the breaking of the head of the new reconstituted tobacco strip during the cold pressing and splicing of the head and tail of the new and old reconstituted tobacco strips.

[0005] Preferably, the pretreatment mechanism has the following characteristics: The rehumidifier 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; so as to selectively spray non-toxic liquid onto the head and tail of new and old reconstituted tobacco leaf belts as needed, thereby increasing the tensile strength and / or toughness of the head and tail of the new and old reconstituted tobacco leaf belts. The heater includes an electric heating oven and an electric fan to bake or blow air onto the head and tail of the new and old reconstituted tobacco strips, so as to selectively heat the head and tail of the new and old reconstituted tobacco strips as needed, so that the mass percentage moisture content of the head and tail of the new and old reconstituted tobacco strips is controlled at 8-15%, thereby increasing the tensile strength and / or toughness of the head and tail of the new and old reconstituted tobacco strips.

[0006] Preferably, the rehumidifier of the pretreatment mechanism includes: a coating roller group respectively arranged on one side of the two transfer rollers for applying non-toxic liquid to the head and tail of the new and old reconstituted tobacco leaf belts, so as to selectively apply non-toxic liquid to the head and tail of the new and old reconstituted tobacco leaf belts as needed, thereby increasing the tensile strength and / or toughness of the head and tail of the new and old reconstituted tobacco leaf belts.

[0007] Preferably, the lower winding roller of the lower winding mechanism includes: a horizontal cylinder, a strip groove provided at the front of the horizontal cylinder, the strip groove being an axial through groove extending from the front of the horizontal cylinder to the middle, the front end and both sides of the axial through groove being open. The front of the horizontal cylinder extends forward and is suspended in the air, while the rear passes through a retaining ring and connects to the telescopic and rotating mechanism. The retaining 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 retaining ring is fixed to the frame by a fixing seat on the outer sleeve so that the belt head or tail can pass through the horizontal cylinder through the belt slot, thereby facilitating the winding of the belt head or tail onto the horizontal cylinder. The retaining ring can prevent the belt head or tail from winding when the horizontal cylinder moves backward, so that the belt head or tail can be detached from the horizontal cylinder for easy collection.

[0008] Preferably, 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 a machine frame, and a horizontal lead screw is provided between the sliding seat and the support frame. The inner end of the horizontal lead screw is engaged with a first bearing with a seat on the inner side of the support frame, and the outer end of the horizontal lead screw passes through a screw hole on the sliding seat and a second bearing with a seat on the outer side of the support frame in sequence before being 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 cause the horizontal lead screw to move the horizontal cylinder on the sliding seat back and forth.

[0009] Preferably, a linear cylinder or linear electric cylinder is provided between the sliding seat and the support frame, and the cylinder seat of the linear cylinder or linear electric cylinder is fixed on the outside of the support frame, and the end of the piston rod is fixed on 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.

[0010] Preferably, an upper winding mechanism is provided on the running path of the old reconstituted tobacco leaf belt above the pretreatment mechanism. The upper winding mechanism includes an upper winding roller for winding the tail of the old reconstituted tobacco leaf belt. The structure of the upper winding roller is the same as that of the lower winding roller.

[0011] Preferably, the at least two spaced support rollers are arranged on the same rotating disk, which is connected to a turntable driver so that when the old reconstituted tobacco roll is about to run out, the turntable driver drives the rotating disk to rotate, so that the positions of at least two support rollers that clamp and support the new and old reconstituted tobacco rolls are switched, thereby realizing the automatic alternating feeding of the new and old reconstituted tobacco rolls.

[0012] The non-stop unwinding, pretreatment, pressing, and winding method based on the aforementioned non-stop unwinding, pretreatment, and pressing device provided by the present invention includes the following steps: (1) When the old reconstituted tobacco strip on one support roller is unwound and is in normal working condition, the new reconstituted tobacco strip is loaded onto another support roller, the head of the new reconstituted tobacco strip is led out, and it is guided downward and after passing through the pretreatment mechanism and the cold pressing and joining mechanism, it is guided downward to the lower winding mechanism. At this time, it is in an unused non-working state. (2) When the old cylindrical reconstituted tobacco strip is about to be used up, the lower winding mechanism rotates and winds the new cylindrical reconstituted tobacco strip head onto the lower winding roller of the lower winding mechanism, so that the new cylindrical reconstituted tobacco strip is in a taut state. (3) When the new cylindrical reconstituted tobacco belt head is accelerated from a stationary state to the same speed as the old cylindrical reconstituted tobacco belt under the drive of the support roller and the lower winding mechanism; (4) When the moisture content of the new and old reconstituted tobacco rolls is less than 8%, the transfer rollers work, the rehumidifier of the pretreatment mechanism works, and non-toxic liquid is continuously sprayed onto the new and old reconstituted tobacco rolls to increase the moisture content of the new and old reconstituted tobacco rolls. When the moisture content of the new and old rolled reconstituted tobacco strips is higher than 15%, the heater will work to heat the new and old rolled reconstituted tobacco strips in order to reduce their moisture content. (5) When the moisture content of the new and old rolled reconstituted tobacco strips is within 8-15%, the cold pressing and joining mechanism works, causing the two pressing dies, which are stationary and furthest apart, to rotate towards each other and accelerate until the two pressing dies mesh with each other. At the same time, the head and tail of the new and old rolled reconstituted tobacco strips located between the two pressing dies are cold pressed and spliced ​​into one piece. (6) While the two molds mesh with each other, the new cylindrical reconstituted tobacco strip between the meshing point and the lower winding mechanism forms a belt head, and the new reconstituted tobacco strip belt head is torn off when the lower winding mechanism accelerates its rotation; the old cylindrical reconstituted tobacco strip between the meshing point and the support roller forms a belt tail, and the old reconstituted tobacco strip belt tail is torn off when the support roller decelerates its rotation. (7) After the two molds mesh with each other, the two molds continue to rotate towards each other until they return to a stationary state and are at the farthest position. The cold-pressed and spliced ​​belt segment and the new reconstituted tobacco belt are continued to be transported to the subsequent process by the tensioning roller group. At the same time, the dehumidifier of the pretreatment mechanism stops spraying non-toxic liquid.

[0013] Preferably, the non-toxic liquid is water or / and volatile liquids such as ethanol, or / and tobacco flavoring liquid, which can adjust the physicochemical properties of the reconstituted tobacco strip without affecting or increasing the flavor or aroma of the reconstituted tobacco strip.

[0014] The present invention has the following beneficial effects: By adopting the above technical solution, the position of at least two support rollers for clamping and supporting new and old cylindrical reconstituted tobacco leaf strips is automatically changed, realizing the automatic alternating feeding of new and old cylindrical reconstituted tobacco leaf strips. As needed, the physical and chemical properties of new and old cylindrical reconstituted tobacco leaf strips are adjusted by rehydration and heating through a rehumidifier and / or heater, increasing the tensile strength and / or toughness and aroma of the reconstituted tobacco leaf strips, meeting the requirements for cold pressing and splicing of the head and tail of the new and old reconstituted tobacco leaf strips. Then, the head of the new reconstituted tobacco leaf strip is automatically broken through the winding mechanism. Since the whole process is completed without stopping the machine, there will be no tension change, and it will not affect the subsequent cutting and shredding processes. This greatly improves the quality of reconstituted tobacco leaves, promotes the efficient utilization of reconstituted tobacco leaf raw materials, and saves tobacco resources. Attached Figure Description

[0015] Figure 1 This is a simplified structural diagram of the present invention; Figure 2 forFigure 1 A schematic diagram of the structure during cold pressing and joining; Figure 3 , Figure 4 for Figure 1 Schematic diagram of the lower winding mechanism in the middle; Figure 5 This is a schematic diagram of another rehumidifier structure of the present invention. Detailed Implementation

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] The non-stop unwinding, pre-treatment, and crimping device provided by the present invention includes: The clamping mechanism includes two spaced-apart support rollers 101 and 102, and a conventional support roller driver connected to the roller shafts of the support rollers 101 and 102, for clamping, supporting, and rotating new and old roll-shaped reconstituted tobacco leaf strips 11 and 12. The cold pressing joining mechanism 3 includes: conventional rollers 31 and 33, each equipped with fan-shaped pressing dies 32 and 34, arranged on the running paths of the new and old reconstituted tobacco leaf belts; and a conventional roller driver connected to the rollers 31 and 33. One of the fan-shaped pressing dies 32 is a punch with multiple teeth spaced apart on its surface, while the other fan-shaped pressing die 34 has a smooth surface. This allows the fan-shaped pressing dies 32 and 34 on the rollers 31 and 33 to move towards each other and engage under the drive of the roller driver (e.g., ...). Figure 2 (Sequence 8) The head 7 of the new reconstituted tobacco belt and the tail 6 of the old reconstituted tobacco belt are cold-pressed and spliced ​​together. The head 70 of the new reconstituted tobacco belt after cold pressing and splicing continues to be conveyed downward. The new reconstituted tobacco belt after cold pressing and splicing is sent to the subsequent process through tension roller groups 13, 14, 15 and 16. Also includes: A pretreatment mechanism located below the clamping mechanism includes: two spaced transfer rollers 21 and 22 on the running path of the new and old reconstituted tobacco leaf strips; a dehumidifier located above the transfer rollers 21 and 22; and heaters 23 and 24 located below the transfer rollers 21 and 22. This pretreatment mechanism is used to adjust the physical and chemical properties of the unwound cylindrical reconstituted tobacco leaf strip 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 reconstituted tobacco leaf strip. The lower winding mechanism 4 is located below the cold pressing and joining mechanism 3. The lower winding mechanism 4 includes a lower winding roller 41 for winding the head 70 of the new reconstituted tobacco strip, which is used to tension the new reconstituted tobacco strip and to break the head 70 of the new reconstituted tobacco strip during the cold pressing and splicing of the head 70 and tail 6 of the new and old reconstituted tobacco strips. As one embodiment, the pretreatment mechanism has the following characteristics: The rehumidifier includes a nozzle 20 and a liquid delivery pipe (not shown in the figure) whose inner end is connected to the nozzle 20 and whose outer end is connected to a liquid pump and a liquid source; so as to selectively spray non-toxic liquid 201 onto the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts as needed, thereby increasing the tensile strength and / or toughness of the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts. Heaters 23 and 24 include electric heating ovens or electric fans to bake or blow air onto the head 7 and tail 6 of the new and old reconstituted tobacco leaf belts, so as to selectively heat the head 7 and tail 6 of the new and old reconstituted tobacco leaf belts as needed, so that the mass percentage moisture content of the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts is controlled at 8-15%, thereby increasing the tensile strength and / or toughness of the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts.

[0018] As an embodiment, the rehumidifier of the pretreatment mechanism includes: coating roller groups 214, 213, 211, 212 and liquid tank 210 respectively disposed outside the two transfer rollers 21, 22 for applying non-toxic liquid 210 to the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts; and coating roller groups 224, 223, 221, 222 and liquid tank 220, so that, as needed, the non-toxic liquid 210 is selectively absorbed by the large rollers 211, 221 placed in the liquid tanks 210, 220, and then transferred to the small rollers 214, 224 by the medium rollers 213, 223 and applied to the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts, thereby increasing the tensile strength and / or toughness of the head 70 and tail 6 of the new and old reconstituted tobacco leaf belts; As an example, the lower winding roller 41 of the lower winding mechanism 4 includes: a horizontal cylinder 412, and a strip groove 411 provided at the front of the horizontal cylinder 412. The strip groove 411 is an axial through groove extending from the front of the horizontal cylinder 412 to the middle. The front end and both sides of the axial through groove are open. The front of the horizontal cylinder 412 extends forward and is suspended in the air, while the rear passes through the anti-reverse ring 42 and is connected to the telescopic rotation mechanism. The anti-reverse ring 42 is a circular ring that slides and fits into the horizontal cylinder 412. The inner diameter of the circular ring is adapted to the outer diameter of the horizontal cylinder 412. The anti-reverse ring 42 is fixed to the frame by the fixing seat 421 of the outer sleeve so that the belt head 70 can pass through the horizontal cylinder 412 through the belt slot 411, thereby facilitating the winding of the belt head 70 onto the horizontal cylinder 412. The anti-reverse ring 42 can prevent the belt head 70 from winding when the horizontal cylinder 412 moves backward, so that the belt head 70 can be detached from the horizontal cylinder 412 for easy collection. As one embodiment, the telescopic rotation mechanism includes a first power unit 43, which is coaxially connected to the rear end of the horizontal cylinder 412 via its output shaft. The first power unit 43 is fixed on a sliding seat 44. The sliding seat 44 is slidably connected to a slide rail 46 on a support frame 49 via sliders 45 on both sides of its bottom. The support frame 49 is fixed on a frame. A horizontal lead screw 47 is provided between the sliding seat 44 and the support frame 49. The inner end of the horizontal lead screw 47 is engaged with a first seated bearing 472 on the inner side of the support frame 49. The outer end of the horizontal lead screw 47 passes through a screw hole on the sliding seat 44 and a second seated bearing 471 on the outer side of the support frame 49, and is then powered by a second power unit 48. This allows the first power unit 43 to drive the horizontal cylinder 412 to rotate, and the second power unit 48 to cause the horizontal lead screw 47 to drive the horizontal cylinder 412 and the first power unit 43 on the sliding seat 44 to move back and forth. As an example, a linear cylinder or linear electric cylinder is provided between the sliding seat 44 and the support frame 49, and the cylinder seat of the linear cylinder or linear electric cylinder is fixed on the outside of the support frame 49, and the end of the piston rod is fixed on the sliding seat 44, so that the sliding seat 44, the first power machine 43 and the horizontal cylinder 412 can be driven to move forward and backward through the linear cylinder or linear electric cylinder. As an example, an upper winding mechanism 5 is provided on the running path of the old reconstituted tobacco leaf belt above the pretreatment mechanism. The upper winding mechanism 5 includes an upper winding roller for winding the tail of the old reconstituted tobacco leaf belt. The structure of the upper winding roller is exactly the same as the structure of the lower winding roller 41. As one embodiment, the at least two spaced support rollers 101 and 102 are arranged on the same rotating disk. The rotating disk is a conventional rotating disk and is connected to a conventional rotating disk driver so that when the old reconstituted tobacco roll is about to run out, the rotating disk is driven to rotate by the rotating disk driver, so that the two support rollers 101 and 102 that hold and support the new and old reconstituted tobacco rolls are swapped, thereby realizing the automatic alternating feeding of the new and old reconstituted tobacco rolls. As an example, the non-toxic liquid is water or / and volatile liquids such as ethanol, or / and tobacco flavoring liquid, which can adjust the physicochemical properties of reconstituted tobacco strips without affecting or increasing the flavor or aroma of the reconstituted tobacco strips.

[0019] The non-stop unwinding, pretreatment, pressing, and winding method based on the aforementioned non-stop unwinding, pretreatment, and pressing device provided by the present invention includes the following steps: (1) When the old cylindrical reconstituted tobacco strip 6 on the first support roller 101 is unwound and in normal working condition, the new cylindrical reconstituted tobacco strip 7 is loaded onto the second support roller 102, the head of the new cylindrical reconstituted tobacco strip 7 is led out, and then guided downward and through the pretreatment mechanism 2 and the cold pressing and joining mechanism 3, and then guided downward to the lower winding mechanism 4. At this time, the new cylindrical reconstituted tobacco strip 7 is in an unused non-working state. (2) When the old cylindrical reconstituted tobacco strip 6 is about to be used up, the lower winding mechanism 4 rotates and winds the new cylindrical reconstituted tobacco strip 7 onto the lower winding roller 41 of the lower winding mechanism 4, so that the new cylindrical reconstituted tobacco strip 7 is in a taut state. (3) The new cylindrical reconstituted tobacco belt 7 accelerates from a stationary state to the same speed as the old cylindrical reconstituted tobacco belt 6 under the drive of the second support roller 102 and the lower winding mechanism 4. (4) When the moisture content of the new and old reconstituted tobacco rolls 7 and 6 is less than 8%, the transfer rollers 21 and 22 work, the rehumidifier of the pretreatment mechanism works, and continuously sprays non-toxic liquid onto the new and old reconstituted tobacco rolls 7 and 6 to increase the moisture content of the new and old reconstituted tobacco rolls 7 and 6. When the moisture content of the new and old reconstituted tobacco rolls 7 and 6 is higher than 15%, the heater will work to heat the new and old reconstituted tobacco rolls 7 and 6 to reduce their moisture content. (5) When the moisture content of the new and old rolled reconstituted tobacco strips 7 and 6 is within 8-15%, the cold pressing joining mechanism 6 operates, causing the two pressing molds 32 and 34, which are stationary and furthest apart, to rotate towards each other, and accelerate until the two pressing molds 32 and 34 mesh with each other, while simultaneously cold pressing and splicing the new and old rolled reconstituted tobacco strips 7 and 6 located between the two pressing molds 32 and 34 into one piece. (6) While the two pressing molds 32 and 34 are engaged with each other, the new cylindrical reconstituted tobacco strip 7 between the engagement point and the lower winding mechanism 4 forms a strip head 70, and the strip head 70 of the new reconstituted tobacco strip 7 is torn off when the lower winding mechanism 4 accelerates its rotation; the old cylindrical reconstituted tobacco strip 6 between the engagement point and the first support roller 101 forms a strip tail 60, and the strip tail 60 of the old reconstituted tobacco strip 6 is torn off when the first support roller 101 decelerates its rotation. (7) After the two pressing molds 32 and 34 finish meshing with each other, the two pressing molds 32 and 34 continue to rotate towards each other until they return to a stationary state and are at the farthest position. The cold-pressed and spliced ​​belt segment and the new reconstituted tobacco belt 7 are then transported to the subsequent process by the tensioning roller group 13, 14, 15 and 16. At the same time, the dehumidifier of the pretreatment mechanism 2 stops spraying non-toxic liquid.

[0020] 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 device for unwinding, pre-treatment, and crimping without shutting down the machine, comprising: A clamping mechanism, comprising at least two spaced-apart support rollers and a support roller driver connected to the roller shaft of the support rollers, for clamping, supporting, and rotating new and old roll-shaped reconstituted tobacco leaf strips; The cold pressing joining mechanism includes: a pair of rollers with pressing dies installed on the running paths of the new and old reconstituted tobacco leaf belts, and a roller driver connected to the rollers, which causes the pressing dies on the rollers to move towards each other and mesh, thereby cold pressing and splicing the head of the new reconstituted tobacco leaf belt and the tail of the old reconstituted tobacco leaf belt into one piece. Its features also include: A pretreatment mechanism located below the clamping mechanism includes: two spaced transfer rollers on the running path of the new and old reconstituted tobacco strips, a dehumidifier located above the transfer rollers, and a heater located below the transfer rollers, for adjusting the physical and chemical properties of the unwound cylindrical reconstituted tobacco strip 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 reconstituted tobacco strip; The lower winding mechanism located below the cold pressing and joining mechanism includes: a lower winding roller for winding the head of the new reconstituted tobacco strip, used to tension the new reconstituted tobacco strip, and to complete the breaking of the head of the new reconstituted tobacco strip during the cold pressing and splicing of the head and tail of the new and old reconstituted tobacco strips.

2. The non-stop unwinding, pretreatment, and pressing device according to claim 1, characterized in that... The pretreatment mechanism: The rehumidifier 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; to spray non-toxic liquid onto the head and tail of new and old reconstituted tobacco leaf belts to increase the tensile strength and / or toughness of the head and tail of the new and old reconstituted tobacco leaf belts. The heater includes an electric heating oven and an electric fan to bake or blow dry the heads and tails of new and old reconstituted tobacco leaves, so that the moisture content of the heads and tails of new and old reconstituted tobacco leaves is controlled at 10-15%.

3. The non-stop unwinding, pretreatment, and crimping device according to claim 1, characterized in that: The rehumidifier of the pretreatment mechanism includes: a coating roller group, which is respectively set on one side of the two transfer rollers, to apply non-toxic liquid to the head and tail of the new and old reconstituted tobacco leaf belts.

4. The non-stop unwinding, pretreatment, and pressing device according to claim 1, characterized in that: The lower winding roller of the lower winding mechanism includes: a horizontal cylinder and a strip groove provided at the front of the horizontal cylinder. The strip groove is an axial through groove extending from the front of the horizontal cylinder to the middle. The front end and both sides of the axial through groove are open. The front of the horizontal cylinder extends forward and is suspended in the air, while the rear passes through a retaining ring and connects to the telescopic and rotating mechanism. The retaining 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 retaining ring is fixed to the frame by a fixing seat on the outer sleeve so that the belt head or tail can pass through the horizontal cylinder through the belt slot, thereby facilitating the winding of the belt head or tail onto the horizontal cylinder. The retaining ring can prevent the belt head or tail from winding when the horizontal cylinder moves backward, so that the belt head or tail can be detached from the horizontal cylinder for easy collection.

5. The non-stop unwinding, pretreatment, and pressing device according to claim 4, characterized in that: 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. The sliding seat is slidably connected to a slide rail on a support frame via 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 inner end of the horizontal lead screw is engaged with a first bearing with a seat located on the inner side of the support frame. The outer end of the horizontal lead screw passes through a screw hole on the sliding seat and a second bearing with a seat located on the outer side 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 cause the horizontal lead screw to move the horizontal cylinder on the sliding seat back and forth.

6. The non-stop unwinding, pretreatment, and pressing device according to claim 5, characterized in that: A linear cylinder or linear electric cylinder is provided between the sliding seat and the support frame. The cylinder seat of the linear cylinder or linear electric cylinder is fixed to the outside of the support frame, and the end of the piston rod is fixed to the sliding seat so that the linear cylinder or linear electric cylinder can drive the sliding seat and the horizontal cylinder on it to move forward and backward.

7. The non-stop unwinding, pretreatment, and crimping device according to claim 1, characterized in that: An upper winding mechanism is provided on the running path of the old reconstituted tobacco leaf belt above the pretreatment mechanism. The upper winding mechanism includes an upper winding roller that winds the tail of the old reconstituted tobacco leaf belt. The structure of the upper winding roller is the same as that of the lower winding roller.

8. A method for unwinding, pre-treatment, pressing, and winding without stopping the machine, based on the unwinding, pre-treatment, and pressing device described in claim 1, characterized in that... Includes the following steps: (1) When the old reconstituted tobacco strip on one support roller is unwound and is in normal working condition, the new reconstituted tobacco strip is loaded onto another support roller, the head of the new reconstituted tobacco strip is led out, and it is guided downward and after passing through the pretreatment mechanism and the cold pressing and joining mechanism, it is guided downward to the lower winding mechanism. At this time, it is in an unused non-working state. (2) When the old cylindrical reconstituted tobacco strip is about to be used up, the lower winding mechanism rotates and winds the new cylindrical reconstituted tobacco strip head onto the lower winding roller of the lower winding mechanism, so that the new cylindrical reconstituted tobacco strip is in a taut state. (3) When the new cylindrical reconstituted tobacco belt head is accelerated from a stationary state to the same speed as the old cylindrical reconstituted tobacco belt under the drive of the support roller and the lower winding mechanism; (4) When the moisture content of the new and old reconstituted tobacco rolls is less than 8%, the transfer rollers work, the rehumidifier of the pretreatment mechanism works, and non-toxic liquid is continuously sprayed onto the new and old reconstituted tobacco rolls to increase the moisture content of the new and old reconstituted tobacco rolls. When the moisture content of the new and old rolled reconstituted tobacco strips is higher than 15%, the heater will work to heat the new and old rolled reconstituted tobacco strips in order to reduce their moisture content. (5) When the moisture content of the new and old rolled reconstituted tobacco strips is within 8-15%, the cold pressing and joining mechanism works, causing the two pressing dies, which are stationary and furthest apart, to rotate towards each other and accelerate until the two pressing dies mesh with each other. At the same time, the head and tail of the new and old rolled reconstituted tobacco strips located between the two pressing dies are cold pressed and spliced ​​into one piece. (6) While the two molds mesh with each other, the new cylindrical reconstituted tobacco strip between the meshing point and the lower winding mechanism forms a belt head, and the new reconstituted tobacco strip belt head is torn off when the lower winding mechanism accelerates its rotation; the old cylindrical reconstituted tobacco strip between the meshing point and the support roller forms a belt tail, and the old reconstituted tobacco strip belt tail is torn off when the support roller decelerates its rotation. (7) After the two molds mesh with each other, the two molds continue to rotate towards each other until they return to a stationary state and are at the farthest position. The cold-pressed and spliced ​​belt segment and the new reconstituted tobacco belt are continued to be transported to the subsequent process by the tensioning roller group. At the same time, the dehumidifier of the pretreatment mechanism stops spraying non-toxic liquid.

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