Tobacco shred online back-mixing device and tobacco shred online back-mixing method

Abstract

The invention provides a tobacco shred on-line back-mixing device and a tobacco shred on-line back-mixing method.The tobacco shred on-line back-mixing device comprises a rack and an air storage tank, a tobacco catching device, a tobacco guiding pipe and an air blowing pipe are arranged in the rack, the tobacco catching device comprises a plurality of tobacco catching wheels and a plurality of tobacco rubbing plates, and the tobacco rubbing plates and the tobacco catching wheels are in one-to-one correspondence and are arranged in pairs from top to bottom; cigarette flow channels are defined by gaps between the cigarette rubbing plates and the cigarette catching wheels, every two adjacent cigarette flow channels are communicated in an end-to-end mode, one ends of the smoke guiding pipes and one ends of the air blowing pipes are oppositely arranged and arranged on the left sides and the right sides of the cigarette flow channels respectively, the other ends of the air blowing pipes are connected with the output end of the air storage tank, and the other ends of the smoke guiding pipes extend out of the machine frame. The online tobacco shred back-mixing method comprises a process method for blowing out and collecting the tobacco shreds from the two sides of the cigarette branch flow channel respectively by using the equipment. By the adoption of the technical scheme, the equipment structure and the process steps are simplified, and the tobacco shred recycling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and particularly to an on-line tobacco shred re-blending device and an on-line tobacco shred re-blending method. Background Art

[0002] In the production process of filter cigarettes, due to factors such as raw materials, equipment, and the quality of operators, problems such as insufficient fullness and tightness of tobacco shreds, blurred or missing printing of production numbers, color difference in tipping paper, air leakage at the joints, non-compliance with draw resistance, and packaging quality defects may occur, resulting in a certain number of defective cigarette sticks. These defective cigarette sticks are not caused by the quality of tobacco shreds, so the tobacco shreds can be completely recycled. In the prior art, there are mainly two methods for recycling tobacco shreds in cigarette sticks. One is to use steam to break the cigarette paper on the surface of the cigarette stick and then separate the tobacco shreds. Since the tobacco shreds come into contact with water and air, it is easy to cause color change, breakage, and mildew, resulting in the degradation of tobacco shreds and low recycling efficiency of tobacco shreds. The other method is the blowing recycling method. This method blows air into the outer packaging paper tube of the cigarette stick to separate the tobacco shreds from the outer packaging paper tube of the cigarette stick. For filter cigarettes, the air flow can only be separated unidirectionally along one direction, which affects the application range of the equipment.

[0003] In the prior art, a patent document with the authorized announcement number "CN106723322A" discloses an on-line re-blending device for tobacco shreds of defective and thin cigarette sticks in a cigarette machine, including a frame, a sorting device, a cigarette rolling component, a separation device, a main motor, a material receiving system, a sorting and orientation adjustment system, and a blanking hopper; the blanking hopper is installed at the top of the frame, the sorting device, the cigarette rolling component, the separation device, and the main motor are installed in the upper part of the frame, the sorting device, the cigarette rolling component, and the separation device are installed in sequence from top to bottom, the blanking system is connected to the material receiving system at the lower part of the frame, and the sorting device, the cigarette rolling component, and the separation device are driven by the main motor. By adopting the technical solution of this patent, by pre-distinguishing the attitude and direction of the cigarette stick entering the separation wheel, the compressed air flow will not blow out the tobacco shreds in the opposite direction of the cigarette filter, which improves the recycling efficiency of tobacco shreds to a certain extent. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an on-line tobacco shred re-blending device.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides an on-line tobacco shred reblending device, which includes a frame and a gas storage tank. A smoke capturing device, a smoke guiding pipe and a blowing pipe are arranged inside the frame. The smoke capturing device includes a plurality of smoke capturing wheels and a plurality of tobacco rubbing plates. The tobacco rubbing plates correspond to the smoke capturing wheels one by one and are arranged in pairs in a top-down order. A smoke flow channel is formed around the gap between the tobacco rubbing plate and the smoke capturing wheel. The head and tail of adjacent two smoke flow channels are communicated with each other. One end of the smoke guiding pipe and one end of the blowing pipe are arranged opposite to each other and are respectively arranged on the left and right sides of the smoke flow channel. The other end of the blowing pipe is connected to the output end of the gas storage tank, and the other end of the smoke guiding pipe extends to the outside of the frame.

[0007] The smoke capturing device further includes a plurality of driven gears. The smoke capturing wheels correspond to the driven gears one by one and are arranged in pairs. Each pair of the smoke capturing wheels and the driven gears are coaxially fixed together, and adjacent two driven gears are meshed with each other.

[0008] The top of the frame is also fixedly connected with a blanking hopper. In a top-down order, the first smoke flow channel is also communicated with the blanking hopper. A smoke deflecting device is also arranged inside the frame. The smoke deflecting device includes a smoke deflecting gear, and the smoke deflecting gear is arranged at the entrance of the first smoke flow channel.

[0009] A chip guiding groove is also arranged inside the frame. In a top-down order, one end of the chip guiding groove is close to the outlet of the last smoke flow channel, and the other end of the chip guiding groove extends to the outside of the frame.

[0010] A paper picking groove is arranged on the outer peripheral surface of the smoke capturing wheel. The paper picking groove is in a circular ring shape. A wheel-to-wheel peeling knife is also arranged inside the frame. The wheel-to-wheel peeling knife is arranged between adjacent two smoke capturing wheels. In a top-down order, one end of the wheel-to-wheel peeling knife is fixedly connected with the tobacco rubbing plate, and the other end of the wheel-to-wheel peeling knife extends into the corresponding paper picking groove of the previous smoke capturing wheel.

[0011] A knife seat and a terminal peeling knife are also arranged inside the frame. A plurality of card slots are arranged on the surface of the knife seat. In a top-down order, one end of the terminal peeling knife is sleeved in the card slot, and the other end of the terminal peeling knife extends into the corresponding paper picking groove of the last smoke capturing wheel.

[0012] An impurity removing device is also arranged outside the frame. The impurity removing device includes a first end plate, a second end plate, an impurity removing motor and a plurality of impurity screening rollers. The end of the smoke guiding pipe is installed on the first end plate by using a rolling bearing. The second end plate is fixedly connected to the output shaft of the impurity removing motor, and the impurity screening rollers are fixedly connected between the first end plate and the second end plate.

[0013] In addition, the present invention also provides an on-line tobacco shred reblending method, which includes the following steps:

[0014] Step 1: Use the defective cigarette tobacco and paper tube separation device as described above to put the defective cigarettes collected from the output end of the cigarette production line into the hopper.

[0015] Step 2: When the defective cigarettes are transferred in the cigarette flow channel, when the defective cigarettes are clamped between the pressing block and the cigarette placing groove, the compressed air flow from the air storage tank is sent into one side of the cigarette flow channel through the air blowing pipe, driving the tobacco to be sent into the impurity removal device through the smoke guiding pipe, and at the same time, the outer packaging paper tube of the defective cigarettes is sequentially transferred to the outside of the frame through the cigarette flow channel and the chip guiding groove.

[0016] Step 3: Drive the impurity screening roller to rotate, so that the tobacco is sequentially sent into the input end of the cigarette production line through the gap between two adjacent impurity screening rollers, the discharge cylinder, the discharge hopper, and the return blending pipe, and the debris is sequentially transferred into the slag collection tank through the slag discharge hole and the slag guiding groove.

[0017] The beneficial effects of the present invention are as follows: By adopting the technical solution of the present invention, after the defective cigarettes collected from the output end of the cigarette production line are put into the hopper, during the transfer of the defective cigarettes through multiple cigarette flow channels, the smoke catching wheel and the cigarette rubbing plate respectively generate frictional forces on the outer packaging paper tube of the cigarette, making the paper tube worn or soft, so as to facilitate the recovery of the tobacco inside the paper tube. When the pressing cigarette cylinder acts and clamps the defective cigarettes between the pressing block and the cigarette placing groove, the compressed air flow from the air storage tank is blown in from the left or right side of the cigarette placing groove, so that the tobacco and the filter tip are received into the smoke guiding pipe from the right or left side of the cigarette placing groove. Subsequently, after screening and separating the filter tip and the tobacco, the available tobacco is returned to the input end of the cigarette production line, while the outer packaging paper tube of the defective cigarettes is transferred to the chip guiding groove through multiple cigarette flow channels, and then transferred to the chip collection tank for collection. Compared with the prior art, the present invention does not set up complex detection equipment to detect the posture and direction of the cigarettes, which is beneficial to simplifying the equipment structure and the technological steps. And by blowing compressed air flows into both sides of the cigarette placing groove and performing blowing and separating treatment on the tobacco during the transfer and transportation of the cigarettes through multiple cigarette flow channels, the tobacco in the cigarette paper tube can be completely blown clean, improving the recovery and utilization efficiency of the tobacco. Description of the Drawings

[0018] Figure 1 is the front view of the first embodiment of the present invention;

[0019] Figure 2 is the present invention Figure 1 partial enlarged view of the smoke catching device in;

[0020] Figure 3 is the right view of the first embodiment of the present invention;

[0021] Figure 4It is the rear view of the first embodiment of the present invention;

[0022] Figure 5 It is the top view of the first embodiment of the present invention;

[0023] Figure 6 It is along the present invention Figure 5 The cross-sectional view taken along the A-A plane in;

[0024] Figure 7 It is the axonometric view of the second embodiment of the present invention;

[0025] Figure 8 It is the front view of the second embodiment of the present invention;

[0026] Figure 9 It is the right view of the second embodiment of the present invention;

[0027] Figure 10 It is the rear view of the second embodiment of the present invention;

[0028] Figure 11 It is the front view of the cigarette rolling plate of the present invention;

[0029] Figure 12 It is the right view of the cigarette rolling plate of the present invention;

[0030] Figure 13 It is the axonometric view of the tool holder of the present invention;

[0031] Figure 14 It is the axonometric view of the first embodiment of the smoke-catching wheel of the present invention;

[0032] Figure 15 It is the axonometric view of the second embodiment of the smoke-catching wheel of the present invention;

[0033] Figure 16 It is the process flow chart of the online tobacco blending method of the present invention.

[0034] In the figure: 1 - frame, 2 - blanking hopper, 3 - air storage tank, 4 - smoke capture device, 5 - smoke guide pipe, 6 - smoke capture wheel, 8 - driven gear, 10 - cigarette rolling plate, 12 - cigarette placement groove, 13 - air blowing pipe, 14 - chip guide groove, 15 - chip collection groove, 16 - caster, 17 - main motor, 18 - driving gear, 19 - smoke deflecting device, 20 - smoke deflecting gear, 21 - first pulley, 22 - second pulley, 23 - auxiliary motor, 24 - transmission belt, 25 - tool holder, 26 - between-wheel peeling knife, 27 - terminal peeling knife, 28 - card slot, 29 - paper picking groove, 31 - positioning seat, 32 - pressing block, 33 - limiting groove, 34 - cigarette pressing cylinder, 35 - impurity removal device, 36 - first end plate, 37 - second end plate, 38 - impurity removal motor, 39 - impurity screening roller, 40 - material distribution plate, 41 - discharge cylinder, 42 - receiving hopper, 43 - return mixing pipe, 44 - cigarette stick production line, 45 - slag discharge hole, 46 - slag collection groove, 47 - slag guide groove, 48 - cigarette stick flow channel. Specific embodiments

[0035] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0036] First embodiment:

[0037] The present invention provides an on-line tobacco shred return mixing device, as Figures 1 to 6 , Figures 11 to 16 shown, comprising a frame 1 and an air storage tank 3. A smoke capture device 4, a smoke guide pipe 5 and an air blowing pipe 13 are arranged inside the frame 1. The smoke capture device 4 includes a plurality of smoke capture wheels 6 and a plurality of cigarette rolling plates 10. The cigarette rolling plates 10 correspond to the smoke capture wheels 6 one by one and are arranged in pairs in a top-down order. The gap between the cigarette rolling plate 10 and the smoke capture wheel 6 forms a cigarette stick flow channel 48 around it. The head and tail of adjacent two cigarette stick flow channels 48 are connected to each other. One end of the smoke guide pipe 5 and one end of the air blowing pipe 13 are arranged opposite to each other and are respectively arranged on the left and right sides of the cigarette stick flow channel 48. The other end of the air blowing pipe 13 is connected to the output end of the air storage tank 3. The other end of the smoke guide pipe 5 extends to the outside of the frame 1.

[0038] Adopting the technical solution of the present invention, after the defective cigarettes collected from the output end of the cigarette production line are put into the hopper, during the process of the defective cigarettes being transferred through multiple cigarette flow channels, the smoke-catching wheel and the cigarette-rubbing plate respectively generate frictional forces on the outer packaging paper tube of the cigarette, causing the paper tube to wear or become soft, thereby facilitating the recovery of the tobacco shreds inside the paper tube. When the pressing cigarette cylinder acts to clamp the defective cigarette between the pressing block and the cigarette placement groove, the compressed air flow from the air storage tank is blown into the cigarette placement groove from the left or right side, so that the tobacco shreds and the filter tip are received into the smoke guide tube through the right or left side of the cigarette placement groove. Subsequently, after screening and separating the filter tip and the tobacco shreds, the available tobacco shreds are re-mixed into the input end of the cigarette production line, while the outer packaging paper tube of the defective cigarette is transferred to the chip guide groove through multiple cigarette flow channels and then transferred to the chip collection groove for collection. Compared with the prior art, the present invention does not set up complex detection equipment to detect the attitude and direction of the cigarette, which is beneficial to simplifying the equipment structure and the technological steps. Moreover, by blowing compressed air flows into both sides of the cigarette placement groove and performing blowing and separating treatment on the tobacco shreds during the transfer and transportation of the cigarette through multiple cigarette flow channels, the tobacco shreds in the cigarette paper tube can be thoroughly blown clean, improving the recovery and utilization efficiency of the tobacco shreds.

[0039] Specifically, the smoke-catching device 4 further includes a plurality of driven gears 8. The smoke-catching wheels 6 and the driven gears 8 are in one-to-one correspondence and are arranged in pairs. Each pair of smoke-catching wheels 6 and driven gears 8 are coaxially fixedly connected together, and two adjacent driven gears 8 are meshed with each other. A main motor 17 is further arranged inside the frame 1. The output shaft of the main motor 17 is fixedly connected with the driving gear 18, and the driving gear 18 is meshed with one of the driven gears 8. A plurality of cigarette placement grooves 12 are further arranged on the outer peripheral surface of the smoke-catching wheel 6, and the length directions of the cigarette placement grooves 12 are respectively consistent with the axial direction of the smoke-catching wheel 6. Adopting the technical solution of the present invention, the outer packaging paper tube of the cigarette is gradually loosened or worn out during the friction process with the cigarette-rubbing plate 10 and the smoke-catching wheel 6, which is beneficial to thoroughly separating and blowing out the tobacco shreds.

[0040] In addition, the top of the frame is also fixedly connected to the blanking hopper 2. Along the top-down order, the first cigarette branch channel 48 is also connected to the blanking hopper 2. A cigarette deflecting device 19 is provided in the frame 1. The cigarette deflecting device 19 includes a cigarette deflecting gear 20 which is arranged at the entrance of the first cigarette branch channel 48. The cigarette deflecting device 19 further includes a first pulley 21, a second pulley 22 and an auxiliary motor 23. The cigarette deflecting gear 20 is also coaxially and fixedly connected to the first pulley 21. The second pulley 22 is fixedly connected to the output shaft of the auxiliary motor 23. The first pulley 21 and the second pulley 22 are meshed together through a transmission belt 24. Preferably, both the first pulley 21 and the second pulley 22 are synchronous pulleys, and the transmission belt 24 is a synchronous belt. By adopting the technical solution of the present invention, by arranging the cigarette deflecting device at the entrance of the first cigarette branch channel, the rotation direction of the cigarette deflecting gear 20 is opposite to the rotation direction of the corresponding cigarette catching wheel 6, which can provide assistance to the forward conveying force of the cigarette, thereby avoiding the cigarette being blocked at the entrance of the first cigarette branch channel.

[0041] Specifically, a chip guiding groove 14 is further provided in the frame 1. Along the top-down order, one end of the chip guiding groove 14 is close to the outlet of the last cigarette branch channel 48, and the other end of the chip guiding groove 14 extends to the outside of the frame 1. A chip collecting groove 15 is further provided outside the frame 1, and the end of the chip guiding groove 14 is arranged above the chip collecting groove 15. Casters 16 are further installed at the bottom of the chip collecting groove 15. By adopting the technical solution of the present invention, when enough paper tubes are collected in the chip collecting groove 15, they can be transferred by manual pushing.

[0042] In addition, a paper removing groove 29 is provided on the outer peripheral surface of the cigarette catching wheel 6. The paper removing groove 29 is in a circular ring shape. A between-wheel peeling knife 26 is further provided in the frame 1. The between-wheel peeling knife 26 is arranged between two adjacent cigarette catching wheels 6. Along the top-down order, one end of the between-wheel peeling knife 26 is fixedly connected to the cigarette rolling plate 11, and the other end of the between-wheel peeling knife 26 extends into the corresponding paper removing groove 29 of the previous cigarette catching wheel 6. A knife seat 25 and a terminal peeling knife 27 are further provided in the frame 1. A plurality of card slots 28 are provided on the surface of the knife seat 25. Along the top-down order, one end of the terminal peeling knife 27 is sleeved in the card slot 28, and the other end of the terminal peeling knife 27 extends into the corresponding paper removing groove 29 of the last cigarette catching wheel 6. Preferably, the ratio of the number of between-wheel peeling knives 26 to the number of cigarette rolling plates 10 is 3:1, and every 3 between-wheel peeling knives 26 are arranged on the cigarette rolling plate 10 at equal intervals along the axial direction of the cigarette catching wheel 6. The number of terminal peeling knives 27 is 3, and the 3 terminal peeling knives 27 are arranged on the cigarette catching wheel 7 at equal intervals along the axial direction. By adopting the technical solution of the present invention, the outer packaging paper tubes of the cigarettes attached to the surface of the cigarette catching wheel are peeled off by the between-wheel peeling knife 26 and the terminal peeling knife 27. On the one hand, it avoids the influence of the outer packaging paper tubes of the cigarettes on the operation stability of the equipment. On the other hand, it can further scrape clean the outer packaging paper tubes of the cigarettes, and the outer packaging paper tubes of the cigarettes are also reasonably collected to avoid being discarded randomly. The number of cigarette catching wheels 6 is preferably two, and as Figure 10 andFigure 11 As shown, the arrangement positions of the paper scraping grooves 29 are staggered with each other along the axial direction of the smoke catching wheel 6, effectively scraping off the paper tubes or paper scraps attached to the surface of the smoke catching wheel 6.

[0043] In addition, a positioning seat 31 and a pressing block 32 are further arranged inside the frame 1. A limiting groove 33 is arranged on the outer peripheral surface of the smoke catching wheel 6. The limiting groove 33 is in a circular ring shape. A smoke pressing cylinder 34 is installed on the surface of the positioning seat 31. One side of the pressing block 32 is fixedly connected to the piston rod of the smoke pressing cylinder 34, and the other side of the pressing block 32 is aligned with the limiting groove 33. When compressed air is blown into the opposed smoke grooves, the smoke pressing cylinder 34 acts to clamp the defective cigarettes between the pressing block and the smoke placing groove, preventing the outer packaging paper tubes of the cigarettes from being blown into the smoke guiding pipe.

[0044] Specifically, a impurity removing device 35 is further arranged outside the frame 1. The impurity removing device 35 includes a first end plate 36, a second end plate 37, an impurity removing motor 38 and multiple impurity screening rollers 39. The end of the smoke guiding pipe 5 is installed on the first end plate 36 using a rolling bearing. The second end plate 37 is fixedly connected to the output shaft of the impurity removing motor 38. The impurity screening rollers 39 are fixedly connected between the first end plate 36 and the second end plate 37. Adopting the technical solution of the present invention, the impurity removing device 35 is used to remove other impurities such as filter tips mixed in the cut tobacco, so that the cut tobacco material recycled into the cigarette production line is more single and pure. While improving the recycling efficiency of the cut tobacco, the cut tobacco recycling process method is simplified, the labor intensity of personnel is reduced, and the application range of the equipment is expanded.

[0045] In addition, both the first end plate 36 and the second end plate 37 are in the shape of a toroid, the impurity screening roller 39 is in the shape of a cylinder, and multiple impurity screening rollers 39 are evenly arranged in an array along the periphery of the first end plate 36 or the second end plate 37. A material distributing plate 40 is further arranged between the first end plate 36 and the second end plate 37. The material distributing plate 40 is in the shape of a cone, and one side of the bottom of the cone of the material distributing plate 40 is fixedly connected to the output shaft of the impurity removing motor 38, and one side of the top of the cone of the material distributing plate 40 is aligned with the nozzle of the smoke guiding pipe 5. The second end plate 37 is also fixedly connected to one end of the discharge cylinder 41. The other end of the discharge cylinder 41 extends to the periphery of the first end plate 36. The discharge cylinder 41 is also supported on the receiving hopper 42, and the receiving hopper 42 is arranged below the first end plate 36. The receiving hopper 42 is also fixedly connected to one end of the return mixing pipe 43, and the other end of the return mixing pipe 43 extends into the cigarette rod production line 44. A screw conveyor is also installed in the return mixing pipe 43. The discharge cylinder 41 is in the shape of a conical cylinder as a whole. The impurity screening roller 39 can be replaced with stainless steel wires. A plurality of slag discharge holes 45 are also arranged on the surface of the second end plate 37, and a slag collecting tank 46 is arranged outside the frame 1. The slag discharge holes 45 are arranged above the slag collecting tank 46. The in-line tobacco shred return mixing device further includes a slag guiding groove 47. One end of the slag guiding groove 47 is arranged below the slag discharge holes 45, and the other end of the slag guiding groove 47 is arranged above the slag collecting tank 46. By adopting the technical solution of the present invention, the material distributing plate 40 is used to enable the material initially entering between the first end plate 36 and the second end plate 37 to be distributed as close as possible to the vicinity of the first end plate 36, so that the material must be screened and impurity removed before being returned and utilized, avoiding omission of the screening and impurity removing process of the material.

[0046] In addition, the present invention also provides an in-line tobacco shred return mixing method, including the following steps:

[0047] Step 1: Using the defective cigarette rod tobacco shred paper tube separating device according to any one of claims 1 to 9, putting the defective cigarette rods collected from the output end of the cigarette rod production line 44 into the feeding hopper 2;

[0048] Step 2: When the defective cigarette rods are transferred in the cigarette rod flow channel 48, when the defective cigarette rods are clamped between the pressing block 32 and the cigarette placing groove 12, the compressed air flow from the air storage tank 3 is sent into one side of the cigarette rod flow channel 48 through the air blowing pipe 13, driving the tobacco shreds to be sent into the impurity removing device 35 through the smoke guiding pipe 5, and at the same time enabling the outer packaging paper tubes of the defective cigarette rods to be transferred to the outside of the frame 1 through the cigarette rod flow channel 48 and the chip guiding groove 14 in sequence;

[0049] Step 3: Driving the impurity screening roller 39 to rotate, enabling the tobacco shreds to be sent into the input end of the cigarette rod production line 44 through the gaps between adjacent two impurity screening rollers 39, the discharge cylinder 41, the discharge hopper and the return mixing pipe 43 in sequence, and enabling the debris to be transferred into the slag collecting tank 46 through the slag discharge holes 45 and the slag guiding groove 47 in sequence.

[0050] Adopting the technical solution of the present invention, compared with the prior art, the present invention does not set up complex detection equipment to detect the attitude direction of cigarette rods, which is beneficial to simplifying the equipment structure and technological steps. And by blowing compressed air flows into both sides of the cigarette placing groove, and performing blowing and separating treatment on the cut tobacco during the transfer of the cigarette rods via the cigarette catching wheels and the transfer and transportation of the cigarette catching wheels, the cut tobacco in the cigarette paper tube can be completely blown clean, improving the recycling efficiency of the cut tobacco.

[0051] Second Embodiment:

[0052] The present invention provides an on-line cut tobacco blending device, as Figures 7 to 16 shown, which includes a frame 1 and an air storage tank 3. Inside the frame 1, there are several cigarette catching wheels 6, several cigarette rubbing plates 10, a smoke guiding pipe 5 and a blowing pipe 13. The cigarette rubbing plates 10 correspond to the cigarette catching wheels 6 one by one and are arranged in pairs in a top-down order. The gap between the cigarette rubbing plates 10 and the cigarette catching wheels 6 forms a cut tobacco flow channel 48 around. The head and tail of adjacent two cut tobacco flow channels 48 are communicated with each other. One end of the smoke guiding pipe 5 and one end of the blowing pipe 13 are oppositely arranged and are respectively arranged on the left and right sides of the cut tobacco flow channel 48. The other end of the blowing pipe 13 is connected to the output end of the air storage tank 3. The other end of the smoke guiding pipe 5 is communicated with one end of a blending pipe 43, and the other end of the blending pipe 43 is connected to the input end of the cigarette rod production line.

[0053] Adopting the technical solution of the present invention, after the defective cigarette rods collected from the output end of the cigarette rod production line are put into the hopper, during the transfer of the defective cigarette rods through multiple cut tobacco flow channels, the cigarette catching wheels and the cigarette rubbing plates respectively generate frictional forces on the outer packaging paper tubes of the cigarette rods, making the paper tubes worn or soft, so as to facilitate the recovery of the cut tobacco inside the paper tubes. When the pressing cigarette cylinder acts to clamp the defective cigarette rods between the pressing block and the cigarette placing groove, the compressed air flow from the air storage tank is blown in from the left or right side of the cigarette placing groove, so that the cut tobacco and the filter tip are taken into the smoke guiding pipe from the right or left side of the cigarette placing groove. Subsequently, after screening and separating the filter tip and the cut tobacco, the available cut tobacco is blended back to the input end of the cigarette rod production line, while the outer packaging paper tubes of the defective cigarette rods are transferred to the chip guiding groove through multiple cut tobacco flow channels and then transferred to the chip collecting groove for collection. Compared with the prior art, the present invention does not set up complex detection equipment to detect the attitude direction of cigarette rods, which is beneficial to simplifying the equipment structure and technological steps. And by blowing compressed air flows into both sides of the cigarette placing groove, and performing blowing and separating treatment on the cut tobacco during the transfer and transportation of the cigarette rods through multiple cut tobacco flow channels, the cut tobacco in the cigarette paper tube can be completely blown clean, improving the recycling efficiency of the cut tobacco.

[0054] Specifically, the smoke-catching wheel 6 is also coaxially and fixedly connected to the driven gear 8, and two adjacent driven gears 8 are meshed with each other. A main motor 17 is further arranged in the frame 1, the output shaft of the main motor 17 is fixedly connected to the driving gear 18, and the driving gear 18 is meshed with one of the driven gears 8. A plurality of cigarette placement grooves 12 are further arranged on the outer peripheral surface of the smoke-catching wheel 6, and the length directions of the cigarette placement grooves 12 are respectively consistent with the axial direction of the smoke-catching wheel 6. By adopting the technical scheme of the present invention, the outer packaging paper tube of the cigarette is gradually loosened or worn during the friction process between the cigarette rolling plate 10 and the smoke-catching wheel 6, so as to facilitate the complete separation and blowing out of the cut tobacco.

[0055] In addition, the top of the frame is also fixedly connected to the blanking hopper 2. Along the top-down order, the first cigarette flow channel 48 is also communicated with the blanking hopper 2. A cigarette deflecting device 19 is further arranged in the frame 1. The cigarette deflecting device 19 includes a cigarette deflecting gear 20 which is arranged at the entrance of the first cigarette flow channel 48. The cigarette deflecting device 19 further includes a first belt pulley 21, a second belt pulley 22 and an auxiliary motor 23. The cigarette deflecting gear 20 is also coaxially and fixedly connected to the first belt pulley 21. The second belt pulley 22 is fixedly connected to the output shaft of the auxiliary motor 23, and the first belt pulley 21 and the second belt pulley 22 are meshed with each other through a transmission belt 24. Preferably, both the first belt pulley 21 and the second belt pulley 22 are synchronous belt pulleys, and the transmission belt 24 is a synchronous belt. By adopting the technical scheme of the present invention, by arranging the cigarette deflecting device at the entrance of the first cigarette flow channel, the rotation direction of the cigarette deflecting gear 20 is opposite to the rotation direction of the corresponding smoke-catching wheel 6, which can provide assistance to the forward conveying force of the cigarette, so as to prevent the cigarette from being jammed at the entrance of the first cigarette flow channel.

[0056] Specifically, a chip guiding groove 14 is further arranged in the frame 1. Along the top-down order, one end of the chip guiding groove 14 is close to the outlet of the last cigarette flow channel 48, and the other end of the chip guiding groove 14 extends to the outside of the frame 1. A chip collecting groove 15 is arranged outside the frame 1, and the end of the chip guiding groove 14 is arranged above the chip collecting groove 15. A caster 16 is further installed at the bottom of the chip collecting groove 15. By adopting the technical scheme of the present invention, when enough paper tubes are collected in the chip collecting groove 15, they can be transferred by manual pushing.

[0057] In addition, a paper scraping groove 29 is provided on the outer peripheral surface of the smoke catching wheel 6. The paper scraping groove 29 is in a circular ring shape. A between-wheel stripping knife 26 is also provided in the machine frame 1. The between-wheel stripping knife 26 is arranged between two adjacent smoke catching wheels 6. And along the order from top to bottom, one end of the between-wheel stripping knife 26 is fixedly connected to the cigarette rolling plate 11, and the other end of the between-wheel stripping knife 26 extends into the corresponding paper scraping groove 29 of the previous smoke catching wheel 6. A knife seat 25 and a terminal stripping knife 27 are also provided in the machine frame 1. A plurality of card slots 28 are provided on the surface of the knife seat 25. Along the order from top to bottom, one end of the terminal stripping knife 27 is sleeved in the card slot 28, and the other end of the terminal stripping knife 27 extends into the corresponding paper scraping groove 29 of the last smoke catching wheel 6. Preferably, the ratio of the number of the between-wheel stripping knives 26 to that of the cigarette rolling plates 10 is 3:1, and every 3 between-wheel stripping knives 26 are arranged on the cigarette rolling plate 10 at equal intervals along the axial direction of the smoke catching wheel 6. The number of the terminal stripping knives 27 is 3, and the 3 terminal stripping knives 27 are arranged at equal intervals along the axial direction of the smoke catching wheel 7. By adopting the technical solution of the present invention, the outer packaging paper tubes of the cigarette sticks attached to the surface of the smoke catching wheel are stripped by the between-wheel stripping knife 26 and the terminal stripping knife 27. On the one hand, the influence of the outer packaging paper tubes of the cigarette sticks on the operation stability of the equipment is avoided. On the other hand, the outer packaging paper tubes of the cigarette sticks can be further scraped clean, and the outer packaging paper tubes of the cigarette sticks are also reasonably collected to avoid being discarded randomly. The number of the smoke catching wheels 6 is preferably two, and as Figure 10 and Figure 11 shown, the arrangement positions of the paper scraping grooves 29 are staggered with each other along the axial direction of the smoke catching wheel 6, effectively scraping off the paper tubes or paper scraps attached to the surface of the smoke catching wheel 6.

[0058] In addition, a positioning seat 31 and a pressing block 32 are also provided in the machine frame 1. A limiting groove 33 is also provided on the outer peripheral surface of the smoke catching wheel 6. The limiting groove 33 is in a circular ring shape. A cigarette pressing air cylinder 34 is installed on the surface of the positioning seat 31. One side of the pressing block 32 is fixedly connected to the piston rod of the cigarette pressing air cylinder 34, and the other side of the pressing block 32 is aligned with the limiting groove 33. When compressed air flow is blown into the cigarette placing groove, the cigarette pressing air cylinder 34 acts to clamp the defective cigarette sticks between the pressing block and the cigarette placing groove, avoiding the outer packaging paper tubes of the cigarette sticks from being blown into the smoke guiding pipe.

[0059] Specifically, an impurity removal device 35 is further provided between the smoke guide pipe 5 and the backmixing pipe 43. The impurity removal device 35 is arranged inside the frame 1. The impurity removal device 35 includes a first end plate 36, a second end plate 37, an impurity removal motor 38 and multiple impurity screening rollers 39. The end of the smoke guide pipe 5 is installed on the first end plate 36 using a rolling bearing. The second end plate 37 is fixedly connected to the output shaft of the impurity removal motor 38. The impurity screening rollers 39 are fixedly connected between the first end plate 36 and the second end plate 37. By adopting the technical solution of the present invention, the impurity removal device 35 is used to remove other impurities such as filter tips mixed in the cut tobacco, so that the cut tobacco material backmixed into the cigarette production line is more single and pure. While improving the recycling efficiency of the cut tobacco, the cut tobacco recycling process method is simplified, the labor intensity of personnel is reduced, the application range of the equipment is expanded. In addition, compared with the first embodiment, the impurity removal device 35 is arranged inside the frame 1, making the entire device structure more compact and reducing the floor area or occupied space of the mechanical equipment.

[0060] In addition, both the first end plate 36 and the second end plate 37 are in the shape of a circular ring body, the impurity screening rollers 39 are in the shape of a cylinder, and multiple impurity screening rollers 39 are evenly arranged in an array along the circumference of the first end plate 36 or the second end plate 37. A material distribution plate 40 is further arranged between the first end plate 36 and the second end plate 37. The material distribution plate 40 is in the shape of a cone, and the bottom side of the cone of the material distribution plate 40 is fixedly connected to the output shaft of the impurity removal motor 38, and the top side of the cone of the material distribution plate 40 is aligned with the pipe orifice of the smoke guide pipe 5. The second end plate 37 is also fixedly connected to one end of a discharge cylinder 41. The other end of the discharge cylinder 41 extends to the circumference of the first end plate 36. The discharge cylinder 41 is also supported on a receiving hopper 42, and the receiving hopper 42 is arranged below the first end plate 36. The receiving hopper 42 is also fixedly connected to one end of the backmixing pipe 43, and the other end of the backmixing pipe 43 extends into the cigarette production line 44. A screw conveyor is also installed inside the backmixing pipe 43. The discharge cylinder 41 is in the shape of a conical cylinder as a whole. The impurity screening rollers 39 can be replaced with stainless steel wires. A plurality of slag discharge holes 45 are also arranged on the surface of the second end plate 37. A slag collection tank 46 is also arranged outside the frame 1, and the slag discharge holes 45 are arranged above the slag collection tank 46. The cut tobacco on-line backmixing device further includes a slag guide groove 47. One end of the slag guide groove 47 is arranged below the slag discharge holes 45, and the other end of the slag guide groove 47 is arranged above the slag collection tank 46. By adopting the technical solution of the present invention, the material distribution plate 40 is used to make the material initially entering between the first end plate 36 and the second end plate 37 be distributed as close as possible to the vicinity of the first end plate 36, so that the material must be screened and impurity-removed before being backmixed and utilized, avoiding omission of the screening and impurity-removing process of the material.

[0061] In addition, the present invention also provides a cut tobacco on-line backmixing method, including the following steps:

[0062] Step 1: Use the defective cigarette cut tobacco paper tube separation device according to any one of claims 1 to 9 to put the defective cigarettes collected from the output end of the cigarette production line 44 into the feeding hopper 2;

[0063] Step 2: During the transfer of defective cigarette sticks in the cigarette stick flow channel 48, when the defective cigarette stick is clamped between the pressing block 32 and the cigarette placing groove 12, the compressed air flow from the air storage tank 3 is sent into one side of the cigarette stick flow channel 48 through the air blowing pipe 13, driving the cut tobacco to enter the impurity removal device 35 through the smoke guiding pipe 5. At the same time, the outer packaging paper tube of the defective cigarette stick is transferred to the outside of the frame 1 through the cigarette stick flow channel 48 and the chip guiding groove 14 in sequence;

[0064] Step 3: Drive the impurity screening roller 39 to rotate, so that the cut tobacco enters the input end of the cigarette stick production line 44 through the gaps between adjacent two impurity screening rollers 39, the discharge cylinder 41, the discharge hopper, and the return mixing pipe 43 in sequence, and the debris is transferred to the slag collection tank 46 through the slag discharge holes 45 and the slag guiding groove 47 in sequence.

[0065] Adopting the technical solution of the present invention, compared with the prior art, the present invention does not set up complex detection equipment to detect the attitude direction of cigarette sticks, which is beneficial to simplifying the equipment structure and technological steps. And by blowing compressed air flows to both sides of the cigarette placing groove, and performing blowing and separating treatment on the cut tobacco when the cigarette sticks are transferred and conveyed through the smoke catching wheels, the cut tobacco on the cigarette paper tube can be completely blown clean, improving the recycling efficiency of the cut tobacco.

Claims

1. A tobacco online remixing device, characterized in that: The invention comprises a frame (1) and an air storage tank (3). The frame (1) is provided with a plurality of smoke catching wheels (6), a plurality of smoke rubbing plates (10), a smoke guiding pipe (5) and an air blowing pipe (13). The smoke rubbing plates (10) correspond to the smoke catching wheels (6) one by one and are arranged in pairs in a top-down order. The gap between the smoke rubbing plates (10) and the smoke catching wheels (6) forms a branch smoke flow channel (48). Two adjacent branch smoke flow channels (48) are connected to each other end to end. One end of the smoke guiding pipe (5) and one end of the air blowing pipe (13) are opposite to each other and are arranged on the left and right sides of the branch smoke flow channel (48). The other end of the air blowing pipe (13) is connected to the output end of the air storage tank (3). The other end of the smoke guiding pipe (5) is connected to one end of a remixing pipe (43). The other end of the remixing pipe (43) is connected to a cigarette production line (44).

2. The on-line tobacco remixing device according to claim 1, characterized in that: The smoke catching device (4) further comprises a plurality of driven gears (8), the smoke catching wheels (6) and the driven gears (8) corresponding one to one and arranged in pairs, each pair of the smoke catching wheels (6) and the driven gears (8) being coaxially fixedly connected together, and two adjacent driven gears (8) being meshed with each other.

3. The on-line tobacco remixing device according to claim 1, characterized in that: The top of the frame is also fixedly connected to the drop hopper (2). From top to bottom, the first branch cigarette flow channel (48) is also connected to the drop hopper (2). A smoke-moving device (19) is also arranged in the frame (1). The smoke-moving device (19) includes a smoke-moving gear (20). The smoke-moving gear (20) is arranged at the entrance of the first branch cigarette flow channel (48).

4. The on-line tobacco remixing device according to claim 1, characterized in that: The frame (1) is also provided with a chip guide groove (14). In order from top to bottom, one end of the chip guide groove (14) is close to the outlet of the last branch cigarette flow channel (48), and the other end of the chip guide groove (14) extends to the outside of the frame (1).

5. The on-line tobacco remixing device according to claim 1, characterized in that: The outer circumferential surface of the smoke catching wheel (6) is provided with a paper picking groove (29) in a circular ring shape. The frame (1) is further provided with an inter-wheel stripping knife (26), which is arranged between two adjacent smoke catching wheels (6), and in a top-to-bottom order, one end of the inter-wheel stripping knife (26) is fixedly connected to the cigarette rubbing plate (11), and the other end of the inter-wheel stripping knife (26) extends into the corresponding paper picking groove (29) of the previous smoke catching wheel (6).

6. The on-line tobacco remixing device according to claim 5, characterized in that: The frame (1) is further provided with a knife seat (25) and a terminal stripping knife (27). The surface of the knife seat (25) is provided with a plurality of slots (28). In order from top to bottom, one end of the terminal stripping knife (27) is sleeved in the slot (28), and the other end of the terminal stripping knife (27) extends into a corresponding paper removing slot (29) of the last smoke catching wheel (6).

7. The on-line tobacco remixing device according to claim 1, characterized in that: The online tobacco remixing device also includes a de-impurity device (35), which includes a first end plate (36), a second end plate (37), a de-impurity motor (38) and a plurality of de-impurity screening rollers (39). The end of the smoke guide pipe (5) is mounted on the first end plate (36) using a rolling bearing, the second end plate (37) is fixedly connected to the output shaft of the de-impurity motor (38), and the de-impurity screening rollers (39) are fixedly connected between the first end plate (36) and the second end plate (37).

8. A method for online tobacco remixing, characterized in that: The following steps are involved: Step 1: using the defective cigarette shredded tobacco paper tube separation device as claimed in any one of claims 1 to 7, the defective cigarettes collected from the output end of the cigarette production line (44) are put into the drop hopper (2); Step 2: When the defective cigarettes are transferred in the cigarette flow channel (48), when the defective cigarettes are clamped between the pressing block (32) and the cigarette placing groove (12), the compressed air flow generated by the gas storage tank (3) is sent into one side of the cigarette flow channel (48) through the blowing pipe (13), driving the tobacco shreds into the impurity removal device (35) through the cigarette guide pipe (5), and at the same time, the outer packaging paper tube of the defective cigarettes is transferred to the outside of the frame (1) through the cigarette flow channel (48) and the chip guide groove (14) in sequence; Step three: driving the sieving roller (39) to rotate, so that the shredded tobacco is sequentially delivered to the input end of the cigarette production line (44) through the gap between two adjacent sieving rollers (39), the discharge cylinder (41), the discharge hopper, and the back-mixing pipe (43), and the debris is sequentially transferred to the slag collecting trough (46) through the slag discharge hole (45) and the slag guide trough (47).

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