Cigarette slitting apparatus and method

Abstract

The application relates to a cutting device and method of cigarettes, comprising: a vibrating groove; a cigarette channel formed in the vibrating groove, the cigarette channel having a length and a width, and the length direction of the cigarette channel being the conveying direction of the cigarettes; and a cutter arranged on the vibrating groove and located at a preset position along the width direction at the outlet end of the cigarette channel; wherein the bottom of the vibrating groove is at least partially a wave-shaped surface along the length direction of the cigarette channel, and the wave-shaped surface satisfies a Fourier function. Under the action of the wave-shaped surface, the cigarettes can be effectively straightened, the length direction of the cigarettes can be kept perpendicular to the moving direction, the regularly arranged cigarettes are conveyed to the cutter for cutting, the relative position of the cutter along the width direction of the cigarette channel is set, the cutter can cut the tobacco segment of the cigarettes, the phenomenon of impurities caused by cutting the filter segment is avoided, and the cutting device and method of the cigarettes can realize the rapid cutting of the tobacco segment of defective cigarettes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco recovery, in particular to a cigarette cutting device and method. BACKGROUND

[0002] In the process of producing cigarettes, a large number of defective cigarettes are produced by the cigarette factory. In order to avoid waste, the cigarette factory needs to recover the tobacco of defective cigarettes. The recovery of defective tobacco generally includes the processes of cigarette breaking, tobacco separation and tobacco screening, etc. Among them, the defective cigarettes are processed by a circular screening drum. The rotation of the circular screening drum causes the cigarette to break, and then the tobacco is separated through subsequent screening. However, there are certain drawbacks in the actual processing process. For example, if the rotation speed of the circular screening drum is high, the breaking and crushing effect of the cigarette is also good, which is beneficial to the subsequent process of separating the tobacco in the cigarette. However, the high rotation speed of the circular screening drum can easily damage the filter tip, and the breaking degree of the cigarette paper is also high, which increases the tobacco crushing rate and the content of filter tip and cigarette paper impurities in the tobacco. If the rotation speed of the circular screening drum is low, the content of impurities in the tobacco can be reduced, but the breaking degree of the cigarette is not enough, and the tobacco in the cigarette cannot be completely separated during subsequent screening, so that a part of the tobacco remains in the cigarette paper. Therefore, during the debugging of the equipment, a certain degree of trade-off is required. In practice, if the position of the middle tobacco segment in the cigarette is pre-cut once and the circular screening drum processes the cut cigarette at a low rotation speed, the tobacco and the cigarette paper can be separated well, and there will be less cigarette paper and filter tip impurities, and the tobacco crushing can be reduced. However, how to cut a large number of defective cigarettes has become a new problem to be solved. If manual cutting is used, the efficiency is too low, which affects the recovery efficiency of the tobacco. If a cutting knife or other equipment is used for cutting, the arrangement of the cigarette and the cutting position of the cutting knife on the cigarette need to be considered, and it is difficult to achieve the cooperation of the existing conveying belt and cutting knife. SUMMARY

[0003] The purpose of the present application is to provide a cigarette cutting device and method, which can pre-cut defective cigarettes once to improve the effect of subsequent process of defective cigarettes, thereby effectively solving the problems existing in the prior art.

[0004] To this end, in a first aspect, the present application provides a cigarette cutting device, comprising:

[0005] A vibrating trough is connected to the driving device in the working state, and the driving device drives the vibrating trough to vibrate.

[0006] A cigarette passage is formed in the vibration groove, and cigarettes are conveyed in the cigarette passage when the vibration groove vibrates. The cigarette passage has an inlet end and an outlet end. Cigarettes enter the cigarette passage at the inlet end and are discharged from the cigarette passage at the outlet end. The cigarette passage has a length and a width. The length direction of the cigarette passage is the conveying direction of the cigarettes.

[0007] A cutter is arranged on the vibration groove. The cutter is located at a preset position along the width direction at the outlet end of the cigarette passage to cut the tobacco segments of the cigarettes.

[0008] In one possible implementation, the bottom of the vibration groove is at least partially a wave-shaped surface along the length direction of the cigarette passage. The wave-shaped surface satisfies a Fourier function. The wavelength of the wave-shaped surface and the width of the cigarette passage are both greater than the length of the cigarettes to be conveyed.

[0009] In one possible implementation, the Fourier function satisfied by the wave-shaped surface is

[0010] In one possible implementation, a plurality of partition plates are arranged in the vibration groove to form a plurality of cigarette passages in the vibration groove. The number of cutters corresponds to the number of the cigarette passages. Each cutter is located at a preset position along the width direction of the corresponding cigarette passage at the outlet end of the cigarette passage.

[0011] In one possible implementation, an adjusting seat is arranged on the vibration groove. A first rotating shaft and a driving assembly are arranged on the adjusting seat. The driving assembly is connected to the first rotating shaft to drive the first rotating shaft to rotate. The cutter is mounted on the first rotating shaft. The adjusting seat is vertically adjustable relative to the vibration groove to adjust the cutting depth of the cutting cutter.

[0012] In one possible implementation, the number of cutters corresponding to each cigarette passage is a plurality.

[0013] In one possible implementation, a first cutter disc and a positioning sleeve are sleeved on the first rotating shaft. The cutter can be clamped between two adjacent first cutter discs or clamped between the first cutter disc and the positioning sleeve.

[0014] In one possible implementation, a second rotating shaft is further arranged on the adjusting seat. The second rotating shaft is located upstream of the first rotating shaft along the conveying direction of the cigarettes. A second cutter disc is sleeved on the second rotating shaft. The position of the second cutter disc corresponds to the position of the first cutter disc. A synchronous belt is arranged between the first cutter disc and the second cutter disc. The synchronous belt is used to press the cigarettes.

[0015] In one possible implementation, a mounting seat is arranged on the vibration groove. A threaded adjusting assembly is arranged between the mounting seat and the adjusting seat to enable the adjusting seat to slide vertically on the mounting seat.

[0016] In a possible implementation, the vibrating groove is provided with a guide plate, the guide plate is located above the partition plate, an angle is formed between the length direction of the guide plate and the moving direction of the cigarette, the guide plate comprises a bottom plate and a side plate, the bottom plate is horizontally located above the partition plate, and the side plate is connected to one side of the bottom plate which is away from the moving direction of the cigarette.

[0017] In a second aspect, the embodiments of the present application further provide a method for slitting cigarettes, which is applied to the cigarette slitting device described above, and comprises the following steps:

[0018] A, determining the total length of the defective cigarette to be processed, denoted as M, wherein the filter length of the cigarette is denoted as l, and the tobacco segment length of the cigarette is M-l, both in mm;

[0019] B, calculating the width t of each cigarette channel, t=T / (N+1), wherein T represents the width value of the inside of the vibrating groove, N represents the number of the partition plates, and t is greater than M;

[0020] C, obtaining the difference between the cigarette length and the cigarette channel width, which is t-M, so that when the cigarette moves in the cigarette channel, if the length direction of the cigarette is perpendicular to the moving direction of the cigarette, the gap amount through which the cigarette can move in the cigarette channel along the width direction of the cigarette channel is t-M, the number of the cutter corresponding to each cigarette channel is set to one, the rotation plane of the cutter is perpendicular to the length direction of the cigarette, the cutter is located at the central position of the outlet end of the cigarette channel, the distance between the cutter and the partition plates on both sides of the corresponding cigarette channel is t / 2, and the cutter can correspond to the tobacco segment range of the cigarette;

[0021] D, according to the cigarette length M, the width of the wave-shaped surface is the value of the inside width T of the vibrating groove, the length of the wave-shaped surface in the horizontal direction is set as L, the wave height of the wave-shaped surface is H, according to the wave function, the horizontal distance between the adjacent maximum wave peaks of the wave-shaped surface is λ, and λ is greater than M;

[0022] E, according to the curve of the wave function, the wave-shaped surface at the inlet end of the cigarette channel is set as the lowest trough, then the order of the secondary wave peak is circulated, the wave-shaped surface at the outlet end of the cigarette channel is set as the main wave peak, then the lowest trough is set and the process is ended;

[0023] F, placing the defective cigarette at the position of the inlet end of the cigarette channel in the vibrating groove, starting the driving device and the driving assembly, driving the vibrating groove to vibrate, so that the cigarette is conveyed in the cigarette channel, the cigarette is straightened and aligned under the action of the wave-shaped surface, the cigarette is arranged in the direction perpendicular to the length of the cigarette channel, and the cigarette is conveyed forward, then the cigarette is conveyed to the synchronous belt, and the cigarette is cut vertically at the tobacco segment by the cutter.

[0024] According to the cigarette slitting device and method provided in the embodiments of this application, the cigarette is conveyed in the cigarette channel. Under the action of the wave-shaped surface, the cigarette can be effectively straightened so that the length direction of the cigarette is perpendicular to the movement direction, so that the cigarette is arranged regularly. After the regularly arranged cigarette is conveyed to the cutter, it is slitting. By setting the relative position of the cutter in the width direction of the cigarette channel, the cutter can slit the tobacco segments of the cigarette, avoiding the phenomenon of impurities caused by slitting the filter segment. Thus, the cigarette slitting device and method provided in this application can realize the rapid slitting of tobacco segments of defective cigarettes. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of the cigarette cutting device provided in the embodiments of this application;

[0026] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 A partial structural schematic diagram of the waveform surface and the partition plate provided in the embodiments of this application;

[0028] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 5 A schematic diagram of the partial engagement state of the first rotating shaft, the second rotating shaft, the positioning sleeve, and the cutter provided in the embodiments of this application;

[0030] Figure 6 A partial exploded view of the first cutter head, the second cutter head, the cutter, and the timing belt provided in an embodiment of this application;

[0031] Figure 7 An exploded view of the mounting base and adjusting base provided in the embodiments of this application;

[0032] Figure 8 This is a schematic diagram of the structure of the mounting base provided in the embodiments of this application;

[0033] Figure 9 This is a schematic diagram of the structure of the adjustment seat provided in the embodiments of this application;

[0034] Figure 10 This is a partial structural diagram of the adjustment piece provided in an embodiment of this application;

[0035] Figure 11 A schematic diagram of the alignment state of the cutter and the cigarette provided in the embodiments of this application. Figure 1 ;

[0036] Figure 12A schematic diagram of the alignment state of the cutter and the cigarette provided by the embodiment of the present application Figure 2 ;

[0037] Figure 13 A schematic diagram of the alignment state of the cutter and the cigarette provided by the embodiment of the present application Figure 3 . DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0039] As Figures 1-13As shown, the embodiment of the present application provides a cigarette cutting device, which is applied to the tobacco recovery process in a cigarette factory, in order to cut the defective cigarettes in advance. When the defective cigarettes are recovered by the circular screening drum, if the rotation speed of the circular screening drum is high, although the breaking effect of the cigarettes can be improved, so that the subsequent processing of the tobacco can be more completely separated from the cigarette paper, at the same time, the cigarette paper and the filter tip are also damaged to a high degree, so that the content of the cigarette paper and the filter tip in the tobacco is high, and the tobacco crushing is also high. If the circular screening drum is operated at a low speed, the damage degree of the cigarette paper and the filter tip is reduced, and the content of the cigarette paper and the filter tip in the tobacco is reduced, but due to the insufficient breaking degree of the cigarettes, most of the tobacco cannot be completely separated from the cigarette paper in the subsequent screening process, resulting in incomplete recovery of the tobacco. Therefore, the operation of the circular screening drum is difficult to be in an ideal state, and a trade-off needs to be made among the tobacco separation effect, the content of the impurities and other indicators. It is found in the exploration that if the tobacco segments of the cigarettes are cut in advance, and then processed by the circular screening drum, a more ideal processing effect can be achieved. After the cigarette segments are cut once, the circular screening drum is operated at a low speed, so that the cigarettes and the filter tip are not excessively broken, and the content of the tobacco impurities is not high, and the tobacco and the cigarette paper are not incompletely separated, so that the tobacco and the cigarette paper are effectively separated. The cigarette cutting device and method provided by the present application aims to realize the rapid cutting of the cigarettes, that is, by the cigarette cutting device and method provided by the present application, the defective cigarettes can be cut in advance, and the arrangement of the disordered cigarettes needs to be completed in the cutting process, and the cutting position on the cigarette needs to be adjusted, so as to cut the tobacco segments of the cigarettes. If the filter tip segments are cut, more filter tip fibers are generated in the cutting process, so the cigarettes need to be cut in the tobacco segments. By the pre-cutting of the cigarettes once, the circular screening drum is operated at a low speed when processing the cigarettes, so that the breaking degree of the cigarette paper is low, and more impurities are not generated in the tobacco, and the tobacco and the cigarette paper can be easily separated in the subsequent screening, so that the separation effect of the tobacco and the cigarette paper is improved.

[0040] In detail, the cigarette cutting device comprises a vibrating groove 100. In the working state, the vibrating groove 100 is connected with a driving device, and the driving device can drive the vibrating groove 100 to vibrate. The driving device can be a vibrating screen. Specifically, the vibrating groove 100 can be a screen plate on the vibrating screen, or the vibrating groove 100 is connected with the screen plate of the vibrating screen, or the vibrating groove 100 is connected with the vibration output end of the vibrating screen. As long as the vibration of the vibrating groove 100 can be realized, the vibration can realize the same effect as the screen plate on the vibrating screen, and the vibration can realize the vibration conveying of the material.

[0041] The cigarette conveying channel 200 is formed on the vibrating groove 100, and the cigarettes are conveyed forward in the cigarette conveying channel 200 when the vibrating groove 100 vibrates. The vibrating groove 100 has a length and a width, and the projection of the vibrating groove 100 in the vertical direction is rectangular. The vibrating groove 100 is open at the top and one end in the length direction. The vibrating groove 100 has a bottom wall, two oppositely arranged side walls, and an end wall in the length direction. The cut cigarettes are sent to the subsequent process step for processing at the opening in the length direction. The length direction of the vibrating groove 100 is the conveying direction of the cigarettes. Specifically, the cigarette conveying channel 200 in the shape of a groove can be arranged separately in the vibrating groove 100. Preferably, the space in the vibrating groove 100 is directly formed into the cigarette conveying channel 200. The cigarette conveying channel 200 has an inlet end and an outlet end. The cigarettes enter the cigarette conveying channel 200 at the inlet end, and the cigarettes are sent out of the cigarette conveying channel 200 at the outlet end. The cigarette conveying channel 200 also has a length and a width. The length direction of the cigarette conveying channel 200 is the conveying direction of the cigarettes. When the vibrating groove 100 vibrates, the cigarettes are conveyed forward in the length direction of the cigarette conveying channel 200.

[0042] The cutting knife 7 is arranged above the vibrating groove 100 and is used for cutting the cigarettes. Specifically, the cutting knife 7 is located at the outlet end of the cigarette conveying channel 200, and the cutting knife 7 is arranged at a preset position in the width direction of the cigarette conveying channel 200. The cigarettes are cut at the preset position, i.e., the tobacco segments of the cigarettes are cut, and the filter segments of the cigarettes are avoided to avoid the phenomenon of excessive impurities. Specifically, the preset position can be the middle position in the width direction of the cigarette conveying channel 200 or a position near the middle position in the width direction of the cigarette conveying channel 200, as long as the tobacco segments of the cigarettes can be cut. In this embodiment, the principle of cutting the tobacco segments is that the movement of the cigarettes in the width direction of the cigarette conveying channel 200 is limited by the two oppositely arranged side walls of the vibrating groove 100. When the length direction of the cigarettes and the length direction of the cigarette conveying channel 200 are perpendicular to each other, and the variation of the cigarettes in the length direction in the cigarette conveying channel 200 is limited by the side walls. When the cutting knife 7 cuts the cigarettes in the middle or the middle range of the width direction of the cigarette conveying channel 200, the tobacco segments of the cigarettes can be cut.

[0043] More specifically, at least a portion of the bottom of the vibrating groove 100 is a waveform surface 101. The waveform surface 101 has a continuous, undulating, regular waveform along the length of the cigarette channel 200. In this embodiment, the waveform of the waveform surface 101 satisfies a Fourier function, meaning that the waveform of the waveform surface 101 corresponds to the waveform curve of the Fourier function. The undulation direction of the waveform surface 101 is the length direction of the cigarette channel 200. Moreover, the wavelength of the waveform surface 101 is greater than the length of the cigarette to be conveyed, and the width of the cigarette channel 200 is also greater than the length of the cigarette. More specifically, when the waveform surface 101 has a main peak and a secondary peak, the wavelength of the waveform surface 101 is defined as two adjacent peaks. The spacing between the main wave peaks is such that, along the direction of the cigarette channel 200, the bottom of the cigarette channel 200 has a continuous, regular, and spaced ridge and groove structure. When the vibrating groove 100 vibrates and conveys the cigarette, since the length of the cigarette is less than the width of the cigarette channel 200 and the length of the cigarette is also less than the wavelength of the waveform surface 101, the cigarette tends to enter the trough of the waveform surface 101 during the repeated jumping process, so that the cigarette is gradually straightened and aligned. After the cigarette is straightened, it continues to be conveyed forward neatly. Therefore, under the action of the waveform surface 101, the cigarette can be arranged neatly, which makes it convenient for the cutter 7 to accurately cut the neatly arranged cigarette.

[0044] Specifically, the Fourier function satisfied by the waveform surface 101 is f(x) = sin(x) + sin(x / 2). This waveform has a main peak, a secondary peak, a highest trough, and a lowest trough. The waveform changes along the x-axis in a cycle of main peak, highest trough, secondary peak, and lowest trough. In this embodiment, along the direction of cigarette movement, the waveform of the waveform surface 101 changes continuously from the lowest trough to the secondary peak, the highest trough, and the main peak. Thus, as the cigarette is conveyed forward, the height of the cigarette gradually increases, which is more conducive to the forward conveying of the cigarette. Specifically, the amplitude and frame rate of the oscillation groove 100 are only required to enable the cigarette to move forward on the waveform surface 101.

[0045] like Figure 4 As shown, point I represents the main peak, point II represents the secondary peak, point III represents the highest trough, and point IV represents the lowest trough.

[0046] More specifically, a plurality of partition plates 3 are arranged in the vibration groove 100, the length direction of the partition plates 3 is the length direction of the vibration groove 100, the partition plates 3 divide the space in the vibration groove 100 into a plurality of partitions, each partition is a cigarette passage 200 in which a cigarette can move, specifically, the bottom of the partition plate 3 and the wave shape of the wave-shaped surface 101 adapt to each other, the bottom of the partition plate 3 is connected to the top of the wave-shaped surface 101, so that two adjacent partition plates 3 divide a cigarette passage 200, the outermost partition plate 3 and the corresponding side wall of the vibration groove 100 divide a cigarette passage 200, so that the movement of the cigarette in the cigarette passage 200 in the width direction is limited by the corresponding partition plate 3 and the side wall of the vibration groove 100, in the embodiment, the number of cutters 7 corresponds to the number of cigarette passages 200, one cigarette passage 200 corresponds to one cutter 7, the corresponding cutter 7 is arranged at a predetermined position in the width direction of the corresponding cigarette passage 200 at the outlet end of the corresponding cigarette passage 200, so that the cutter 7 can cut the tobacco segment of the cigarette in each cigarette passage 200.

[0047] More specifically, the cutter 7 is disc-shaped, an adjusting seat 41 is arranged on the vibration groove 100, a first rotating shaft 51 and a driving assembly 6 are arranged on the adjusting seat 41, the driving assembly 6 and the first rotating shaft 51 are connected, so that the driving assembly 6 can drive the first rotating shaft 51 to rotate, the cutter 7 is coaxially mounted on the first rotating shaft 51, thereby driving the cutter 7 to rotate and cut the cigarette, which is beneficial to improving the cutting effect of the cigarette and making the cutting more smooth and fast, in the embodiment, the adjusting seat 41 can be adjusted in the vertical direction relative to the vibration groove 100, so that the height of the adjusting seat 41 can be adjusted, thereby the height of the cutter 7 can be adjusted, so that the cutting depth of the cutter 7 on the cigarette can be adjusted, by adjusting the cutting depth of the cutter 7 on the cigarette, the cutting depth of the cutter 7 on the cigarette is greater than the radius of the cigarette, or the cutter 7 completely cuts the cigarette.

[0048] More specifically, the bottom of the vibration groove 100 is further provided with a front extension section 102 and a rear extension section 103, both of which are planar structures, the front extension section 102 is connected to the upstream of the wave-shaped curved surface 101, and the rear extension section 103 is connected to the downstream of the wave-shaped curved surface 101, that is, the opening end on one side of the length direction of the vibration groove 100, both ends of the partition plate 3 extend to the area of the front extension section 102 and the area of the rear extension section 103 respectively, the front extension section 102 is used for the placement of defective cigarettes, under the vibration of the vibration groove 100, the cigarettes enter the wave-shaped curved surface 101 from the front extension section 102, in the vertical projection, the cutter 7 is arranged in the range of the rear extension section 103, and the cutter 7 is at the end of the partition plate 3, which ensures that the cigarettes are always under the limiting effect of the partition plate 3 and keep neat before being cut by the cutter 7, which is beneficial to the smooth cutting of the cigarettes by the cutter 7, specifically, during the conveying process of the cigarettes, the cigarettes are transferred to the rear extension section 103 from the wave-shaped curved surface 101, and then continue to move a certain distance under the limiting of the partition plate 3, after the cigarettes are sent out from the cigarette channel 200, they reach the cutter 7, the cutter 7 cuts the cigarettes, and after the cutting of the cigarettes is completed, the cigarettes are conveyed to the subsequent process step through the opening of the vibration groove 100 for further processing.

[0049] More specifically, in order to increase the stability of the cutter 7 when cutting the cigarettes, one end of the partition plate 3 extends to the position of the cutter 7, and the partition plate 3 exerts a lateral limiting effect on the cigarettes until the cutting of the cigarettes is completed by the cutter 7.

[0050] More specifically, the adjusting seat 41 is provided with two, two adjusting seats 41 are located at the two sides of the width of the vibration groove 100, and the two adjusting seats 41 are symmetrically arranged, and the two ends of the first rotating shaft 51 are connected to the two adjusting seats 41 on the two sides. In this embodiment, the first cutter head 71 and the positioning sleeve 8 are sleeved on the first rotating shaft 51 along the first rotating shaft 51. The first cutter head 71 is in the form of a flat cylinder, and the size of the axis direction of the first cutter head 71 is smaller than the diameter of the first cutter head 71. The first cutter head 71 is coaxially sleeved on the first rotating shaft 51. The positioning sleeve 8 is in the form of a long tube and is axially movably sleeved on the first rotating shaft 51. The positioning sleeve 8 and the first cutter head 71 are both provided with a plurality of positioning sleeves 8 on the two outer sides of the two ends of the first rotating shaft 51, and the outermost ends of the two positioning sleeves 8 are limited by the limiting sleeve 81. The limiting sleeve 81 is in the form of a ring and can be sleeved on the first rotating shaft 51. The limiting sleeve 81 and the first rotating shaft 51 can be connected by cooperation. Therefore, two adjacent first cutter heads 71 can realize clamping and fixing of the cutter 7, two adjacent positioning sleeves 8 can also realize clamping and fixing of the cutter 7, and adjacent positioning sleeves 8 and first cutter heads 71 can also realize clamping and fixing of the cutter 7. Preferably, for each cigarette passage 200, two first cutter heads 71 are provided for clamping and fixing. A group of two first cutter heads 71 completes the fixing of one cutter 7, and then the circumferential ends of each group of first cutter heads 71 are tightly pressed by a positioning sleeve 8. By adjusting the length of each positioning sleeve 8 and the circumferential thickness of the first cutter head 71, the position of the cutter 7 on the first cutter shaft can be adjusted, and then the position of each cutter 7 in the width direction of the cigarette passage 200 corresponding to the cigarette passage 200 can be adjusted to make the cutter 7 cut the tobacco section of the cigarette.

[0051] More specifically, the number of cutters 7 corresponding to each cigarette passage 200 can also be multiple, and preferably, the number of cutters 7 in the same group corresponding to each cigarette passage 200 is three, one of which is located at the center of the width direction of the cigarette passage 200, and the other two cutters 7 in the same group are symmetrically arranged with respect to the central cutter 7. In this embodiment, the three cutters 7 can all cut the tobacco end of the cigarette. The specific arrangement will be described later.

[0052] More specifically, a second rotating shaft 52 is arranged between the two adjusting seats 41, and is located upstream of the first rotating shaft 51 along the conveying direction of the cigarette. A second cutter disc 72 and a positioning tube are sleeved on the second rotating shaft 52. The second cutter disc 72 is arranged on the second rotating shaft 52 in the same way as the first cutter disc 71 is arranged on the first rotating shaft 51, and the number and position of the second cutter disc 72 correspond to the number and position of the first cutter disc 71. The second cutter disc 72 is also a flat cylindrical structure, and is coaxially sleeved on the second rotating shaft 52. A synchronous belt 700 is arranged between the first cutter disc 71 and the second cutter disc 72. The radius of the outer edge of the cutter 7 is greater than the radius of the synchronous belt 700 around the first cutter disc 71. The cutter 7 can extend and cut the cigarette. The synchronous belt 700 is arranged around the first cutter disc 71 and the second cutter disc 72. When the driving assembly 6 drives the first rotating shaft 51 to rotate, the second rotating shaft 52 is driven to rotate through the synchronous belt 700. Therefore, the synchronous belt 700 can press the cigarette moving on the rear extension section 103, and the lower synchronous belt 700 can move towards the direction of the cigarette movement, so that the synchronous belt 700 can press and roll the cigarette forward. When the cigarette moves to the position of the cutter 7, the cutter 7 cuts the cigarette. After the cigarette is cut, it is separated from the pressing of the synchronous belt 700, and then continues to be conveyed to the subsequent process by the vibration of the vibration groove 100 and the side opening of the vibration groove 100. In the embodiment, the pressing strength of the synchronous belt 700 on the cigarette can only drive the cigarette to roll, for example, the gap between the lower synchronous belt 700 and the rear extension section 103 can be 2mm smaller than the diameter of the cigarette.

[0053] Specifically, when the synchronous belt 700 is arranged, the end of the partition plate 3 extends to the end of the synchronous belt 700 facing the cigarette, so that the cigarette can move straight under the action of the synchronous belt 700 to the cutter for cutting.

[0054] In the embodiment, the two ends of the first rotating shaft 51 and the second rotating shaft 52 are rotatably arranged on the two adjusting seats 41. The driving assembly 6 can be a driving motor. The driving motor is arranged on one of the adjusting seats 41, and the output end of the driving motor is connected with the first rotating shaft 51, so as to drive the first rotating shaft 51 to rotate.

[0055] More specifically, mounting seats 42 are arranged on both sides of the vibrating groove 100 corresponding to the position of the adjusting seat 41, and the number of mounting seats 42 is also two. The mounting seat 42 and the side of the vibrating groove 100 are connected by screws. The adjusting seat 41 can slide and adjust in the vertical direction on the mounting seat 42. In this embodiment, a vertically extending sliding groove 421 is arranged on the mounting seat 42. A sliding rail 411 that matches the sliding groove 421 is arranged on the adjusting seat 41. The sliding rail 411 can be fitted into the sliding groove 421, thereby limiting the adjusting seat 41 to slide in the vertical direction on the mounting seat 42. In the cross-sectional shape of the sliding groove 421, the width of the opening of the sliding groove 421 is smaller than the width of the inside of the sliding groove 421. The cross-sectional shape of the sliding rail 411 corresponds to the cross-sectional shape of the sliding groove 421. One end of the sliding groove 421 is open. The sliding rail 411 can be inserted into the sliding groove 421 at the open end of the sliding groove 421. Thus, the sliding rail 411 and the sliding groove 421 can form a linearly movable limit. This allows the adjusting seat 41 to be more stably adjusted vertically on the mounting seat 42. Specifically, this embodiment can refer to the dovetail groove guide rail in JB / ZQ 4241-1997. The dovetail angle is 55 ° More specifically, the top of the mounting seat 42 is connected to the side wall of the vibrating groove 100 by screws. A threaded adjusting assembly is arranged between the mounting seat 42 and the adjusting seat 41. The threaded adjusting assembly is used to adjust the vertical position of the adjusting seat 41 on the mounting seat 42. Specifically, the threaded adjusting assembly includes a threaded rod 91. The threaded rod 91 is rotatably mounted at the bottom of the mounting seat 42. The lower part of the threaded rod 91 is rotatably connected to the mounting seat 42 by a bearing or other component. The threaded part of the threaded rod 91 extends upwardly through the mounting seat 42 and continues to extend towards the adjusting seat 41. The threaded part of the threaded rod 91 is threadedly connected to the adjusting seat 41. Thus, by rotating the threaded rod 91, the vertical position of the adjusting seat 41 on the mounting seat 42 can be adjusted. More specifically, a rotating handle 92 can be arranged at the bottom end of the threaded rod 91 to facilitate the rotation of the threaded rod 91. More specifically, a positioning screw 93 can be arranged on the mounting seat 42. The positioning screw 93 can be screwed through the sliding groove 421 and abut against the outer surface of the sliding rail 411. Thus, the adjusting seat 41 and the mounting seat 42 can be fixed and limited. After the adjusting seat 41 is adjusted to the appropriate position, the adjusting seat 41 and the mounting seat 42 are fixed and limited by the positioning screw 93. This improves the relative stability between the adjusting seat 41 and the mounting seat 42 and avoids unstable cooperation due to vibration. In this embodiment, threaded adjusting assemblies are arranged between the mounting seats 42 and the corresponding adjusting seats 41 on both sides to tighten and adjust the two sides.

[0056] More specifically, the guide plate is arranged on the vibration groove 100, and the guide plate is used to screen out the too-long cigarette, which is a double-length cigarette that is not successfully cut on the cigarette making machine. The too-long cigarette is screened out by the guide plate to prevent the delivery and cutting of the defective cigarette from causing adverse effects. Specifically, the guide plate has a certain angle between the length direction of the guide plate and the moving direction of the cigarette. The guide plate includes a bottom plate 121 and a side plate 122. The bottom plate 121 is horizontally arranged above the partition plate 3. The bottom plate 121 is arranged at a certain angle between the length direction of the bottom plate 121 and the length direction of the cigarette channel 200. Thus, the bottom plate 121 has a side facing the moving direction of the cigarette and a side away from the moving direction of the cigarette. In other words, the side of the bottom plate 121 facing the moving direction of the cigarette is farther away from the cutter 7 than the side of the bottom plate 121 away from the moving direction of the cigarette. The side plate 122 is connected to the side of the bottom plate 121 away from the moving direction of the cigarette, and the side plate 122 and the bottom plate 121 are arranged perpendicular to each other. More specifically, one end of the inclined bottom plate 121 is closer to the rear extension section 103, and the other end is farther away from the rear extension section 103. The one end of the bottom plate 121 closer to the rear extension section 103 extends out of the vibration groove 100. The vibration groove 100 is provided with a window 1002 at this position to allow the bottom plate 121 and the side plate 122 to extend out of the window 1002. In this embodiment, the guide plate is arranged close to the downstream position of the entire wave-shaped curved surface 101. In other words, in this area, the normal-size cigarettes have been arranged, and the cigarettes have been straightened and aligned. The distance between the main wave peak of the wave-shaped curved surface 101 and the bottom plate 121 is much greater than the diameter of the cigarette. The actual distance can be adjusted according to the situation. The straightened cigarette can smoothly pass through the gap between the main wave peak and the bottom plate 121. However, the length of the too-long cigarette is greater than the width of the cigarette channel 200, and the length of the too-long cigarette is also greater than the wavelength of the wave-shaped curved surface 101. The specific size will be described later. Therefore, when the vibration groove 100 vibrates to convey the cigarette, the too-long cigarette is placed on the partition plate 3 or raised in the cigarette channel 200, and is obviously higher than the normal-length cigarette in the vertical direction. Therefore, the too-long cigarette moves to the bottom plate 121 and is intercepted by the side plate 122. The height of the side plate 122 is set to ensure that the too-long cigarette does not pass over the side plate 122 when the vibration groove 100 vibrates. Then, under the action of the inclination angle of the guide plate, the too-long cigarette moves from the guide plate and passes through the window 1002 on the vibration groove 100 and slides off from the end of the guide plate. The too-long cigarette is transferred to the designated collection device.

[0057] The cigarette cutting method is applied to the cutting device and includes the following steps.

[0058] A, determine the total length of the defective cigarette to be processed, recorded as M, wherein the cigarette filter length is recorded as l, and the cigarette tobacco segment length is M-l, both in mm;

[0059] B, calculate the width t of each cigarette passage 200, t = T / (N+1), wherein T represents the width value inside the vibration groove 100, N represents the number of partition plates 3, and t is greater than M;

[0060] C, the difference between the cigarette length and the width of the cigarette passage 200 is t-M, so when the cigarette moves in the cigarette passage 200, if the length direction of the cigarette is perpendicular to its moving direction, the gap amount that the cigarette can move in the width direction of the cigarette passage 200 is t-M, the number of cutters 7 corresponding to each cigarette passage 200 is set to one, the rotation surface of the cutter 7 is perpendicular to the length direction of the cigarette, the cutter 7 is located at the central position of the outlet end of the cigarette passage 200, the distance between the cutter 7 and the partition plates 3 on both sides of the corresponding cigarette passage 200 is t / 2, and the cutter 7 can correspond to the tobacco segment range of the cigarette;

[0061] D, according to the cigarette length M, the width of the wave-shaped surface 101 is the value of the internal width T of the vibration groove 100, the length of the wave-shaped surface 101 in the horizontal direction is set as L, the wave height of the wave-shaped surface 101 is H, and the horizontal interval between adjacent maximum wave crests of the wave-shaped surface 101 is λ, λ is greater than M;

[0062] E, according to the curve of the wave function f(x) = sin(x) + sin(x / 2), the lowest trough of the wave-shaped surface 101 at the inlet end of the cigarette passage 200 is set, then the order of the secondary wave crest is circulated, and the main wave crest at the outlet end of the cigarette passage 200 is set, then the lowest trough is set and the process is ended;

[0063] F, place the defective cigarette in the position of the inlet end of the cigarette passage 200 in the vibration groove 100, start the driving device and the driving assembly 6, the driving device drives the vibration of the vibration groove 100, so that the cigarette is conveyed in the cigarette passage 200, and the cigarette is straightened and aligned under the action of the wave-shaped surface 101, so that the cigarette is arranged in the direction perpendicular to the length of the cigarette passage 200, and is conveyed forward, then the cigarette is conveyed to the synchronous belt 700, and the cigarette is conveyed to the cutter 7 by the synchronous belt 700 and is vertically cut at the tobacco segment by the cutter 7.

[0064] Specifically, taking an example, in step A, the total length M of the cigarette is 100 mm, and the filter length of the cigarette is 30 mm, so the length of the tobacco segment of the cigarette is 70 mm; in step B, the width t of each cigarette channel 200 is T / (N+1), taking T as 600 mm and N as 4, then the width t of each cigarette channel 200 is 120 mm, which meets t greater than M; in step C, the difference between the length of the cigarette and the width of the cigarette channel 200 is 20 mm, that is, when the length direction of the cigarette is parallel to the width direction of the cigarette channel 200, the cigarette can move in the cigarette channel 200 along the width direction of the cigarette channel 200 by 20 mm, and in this step, one cutter 7 is arranged corresponding to each cigarette channel 200, and the cutter 7 is at the center of the width direction of the cigarette channel 200, so the distance between the cutter 7 and the partition plate 3 on both sides of the corresponding cigarette channel 200 is 60 mm, as shown in Figure 11 no matter which side of the cigarette is in the cigarette channel 200 or which side of the filter of the cigarette is, the subsequent cutter 7 can cut the tobacco segment of the cigarette; in step D, the length L of the region of the wave-shaped surface 101 along the length direction of the vibration groove 100 is set as 867.26 mm, and the main wave peak height of the wave-shaped surface 101 is set as 35 mm, so the wavelength λ of the wave-shaped surface 101 is about 125.664 mm, which meets λ greater than M; in step E, the wave-shaped surface 101 at the inlet end of the cigarette channel 200 is set as the lowest wave trough, and then the sequence of the secondary wave peak is repeated, the wave-shaped surface 101 at the outlet end of the cigarette channel 200 is set as the main wave peak, and then the lowest wave trough and the end; in step F, the defective cigarette to be processed is placed in the front extension section 102, the driving device and the driving assembly 6 are started, the driving device drives the vibration groove 100 to vibrate, so that the cigarette is conveyed in the cigarette channel 200, and the cigarette is straightened and adjusted under the action of the wave-shaped surface 101, so that the cigarette is arranged in the direction perpendicular to the length of the cigarette channel 200 and is conveyed forward, and then the cigarette is conveyed to the synchronous belt 700, and the cigarette is conveyed to the cutter 7 by the synchronous belt 700 and is vertically cut at the tobacco segment by the cutter 7.

[0065] In this example, as described above, when the deflector screens the too long cigarette, such as the double length cigarette with a length of 2M=200 mm, 200 mm is greater than the width 120 mm of the cigarette channel 200, and 200 mm is greater than the wavelength 125.664 mm of the wave-shaped surface 101, so the screening of the too long cigarette can be realized.

[0066] Still based on this example, when three cutters 7 are arranged corresponding to each cigarette channel 200, as shown in Figure 12As shown, the middle cutter 7 is arranged at the middle of the width direction of the cigarette passage 200, and the two outer cutters 7 are symmetrically arranged relative to the middle cutter 7. The outer cutters 7 are shown as cutting the filter, and to avoid cutting the filter, the outer cutters 7 can be arranged to move towards the middle cutter 7, so that the distance between the outer cutters 7 and the middle cutter 7 is less than 10 mm. In addition, adjustment pieces 131 can be arranged on the rear extension section 103 on both sides of each group of cutters 7. Two adjustment pieces 131 are arranged to reduce the movement of the cigarette along the length direction, for example, from 20 mm to 10 mm. Figure 13 As shown, specifically, the adjustment pieces 131 are arranged on both sides of each column of cigarettes. When the cigarettes between the two partition plates 3 move to the synchronous belt 700 and are conveyed by the synchronous belt 700, the adjustment pieces 131 on both sides limit the movement of the cigarettes in the length direction. Specifically, to facilitate the positioning of the cigarettes, the end of the adjustment piece 131 close to the partition plate 3 is provided with an inclined transition plate 132. One end of the transition plate 132 is connected to the adjustment piece 131, and the other end of the transition plate 132 is aligned with the corresponding partition plate 3. That is, the width of the end of the two transition plates 132 aligned with the partition plate 3 is equal to the width of the cigarette passage 200, and the width of the other end of the two transition plates 132 is equal to the width between the two adjustment pieces 131, facilitating the alignment of the cigarettes between the two adjustment pieces 131 and the conveying by the synchronous belt 700.

[0067] It should be noted that the terms "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. in the specification mean that the described embodiment can include a particular feature, structure, or characteristic, but every embodiment can not necessarily include the particular feature, structure, or characteristic. In addition, such terms do not necessarily refer to the same embodiment. In addition, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0068] It should be readily understood that "on", "above", and "over" in the present disclosure should be interpreted in the broadest way possible, such that "on" means not only "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" includes not only the meaning of "above" or "over", but also the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).

[0069] In addition, spatially relative terms, such as "under", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0070] Note that, in the present document, the terms "first", "second", and the like, merely identify features belonging to distinct categories, and do not necessarily imply a specific order or sequence amongst, or between, those features. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. In other words, the terms "comprises", "comprising", or any other variations thereof, merely specify the presence of the stated features but do not preclude the presence or addition of one or more other features.

[0071] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for slitting a cigarette rod, characterized in that, include: The vibrating groove is connected to the driving device in the working state, and the driving device drives the vibrating groove to vibrate. A cigarette channel is formed within the vibrating groove. When the vibrating groove vibrates, the cigarette is conveyed within the cigarette channel. The cigarette channel has an inlet end and an outlet end. The cigarette enters the cigarette channel at the inlet end and exits the cigarette channel at the outlet end. The cigarette channel has a length and a width, and the length direction of the cigarette channel is the conveying direction of the cigarette. A cutter is provided on the vibrating groove, and the cutter is located at a preset position along the width direction at the outlet end of the cigarette channel to cut the tobacco shreds of the cigarette. Wherein, at least part of the bottom of the vibrating groove is a waveform surface along the length direction of the cigarette channel, the waveform surface satisfies the Fourier function, and the wavelength of the waveform surface and the width of the cigarette channel are both greater than the length of the cigarette to be conveyed. The Fourier function satisfied by the wave-shaped curved surface is ; The vibrating groove is provided with multiple partition plates to form multiple cigarette channels. The number of cutters is set in correspondence with the number of cigarette channels. Each cutter is located at a preset position along the width direction of the corresponding cigarette channel at the outlet end. An adjustment seat is provided on the vibrating groove, and a first rotating shaft and a drive assembly are provided on the adjustment seat. The drive assembly is connected to the first rotating shaft to drive the first rotating shaft to rotate. The cutter is mounted on the first rotating shaft. The adjustment seat can be vertically adjusted relative to the vibrating groove to adjust the depth at which the cutting cutter cuts the cigarette.

2. The cigarette dividing apparatus according to claim 1, characterized in that: The number of cutters corresponding to each cigarette channel is multiple.

3. The cigarette dividing apparatus according to claim 1, wherein: The first rotating shaft is fitted with a first cutter head and a positioning sleeve. The cutter can be clamped between two adjacent first cutter heads or between the first cutter head and the positioning sleeve.

4. The cigarette dividing apparatus according to claim 3, wherein: The adjusting seat is also provided with a second rotating shaft. Along the cigarette conveying direction, the second rotating shaft is located upstream of the first rotating shaft. A second cutter disc is mounted on the second rotating shaft. The position of the second cutter disc corresponds to the position of the first cutter disc. A synchronous belt is provided between the first cutter disc and the second cutter disc. The synchronous belt is used to press the cigarette.

5. The cigarette dividing apparatus according to claim 1, wherein: The vibratory groove is provided with a mounting base, and a threaded adjustment assembly is provided between the mounting base and the adjustment base so that the adjustment base can be slidably adjusted on the mounting base in the vertical direction.

6. The cigarette dividing apparatus according to claim 1, wherein: A guide plate is provided on the vibrating groove. The guide plate is located above the partition plate. There is an angle between the length direction of the guide plate and the movement direction of the cigarette. The guide plate includes a bottom plate and a side plate. The bottom plate is horizontally located above the partition plate. The side plate is connected to the side of the bottom plate opposite to the movement direction of the cigarette.

7. A method of slitting a tobacco rod, characterized by: The cigarette cutting device as described in claim 4, wherein the cutting method comprises the following steps: A. Determine the total length of the defective cigarette to be processed, denoted as M, where the length of the cigarette filter is denoted as l. Then the length of the tobacco section of the cigarette is Ml, and the units are all mm. B. Calculate the width t of each cigarette channel, t=T / (N+1), where T represents the width value inside the vibrating groove, N represents the number of partition plates, and t is greater than M; C, the difference between the length of the cigarette and the width of the cigarette passage is t-M, so when the cigarette moves in the cigarette passage, if the length direction of the cigarette is perpendicular to the moving direction of the cigarette, the gap of the cigarette moving along the width direction of the cigarette passage in the cigarette passage is t-M, the number of the cutter corresponding to each cigarette passage is set to one, the rotation surface of the cutter is perpendicular to the length direction of the cigarette, the cutter is located at the central position of the outlet end of the cigarette passage, the distance between the cutter and the partition plate on both sides of the corresponding cigarette passage is t / 2, and the cutter can correspond to the tobacco segment range of the cigarette; D、According to the length M of the cigarette, the width of the wave surface is the value of the internal width T of the vibration groove. The length of the wave surface in the horizontal direction is L. The wave height of the wave surface is H. The wave function is The horizontal spacing between adjacent maximum wave crests of the wave surface is λ. λ is greater than M. E. According to the curve of the wave function The wave surface is set to the lowest trough at the entrance end of the cigarette passage, then to the secondary peak in sequence, and the wave surface is set to the main peak at the exit end of the cigarette passage, then to the lowest trough and ends. F, the defective cigarette is placed at the position of the inlet end of the cigarette passage in the vibration groove, the driving device and the driving assembly are started, the driving device drives the vibration groove to vibrate, the cigarette is conveyed in the cigarette passage, the cigarette is straightened and arranged under the action of the wave surface, the cigarette is arranged in the direction perpendicular to the length of the cigarette passage and is conveyed forward, then the cigarette is conveyed to the synchronous belt, the cigarette is conveyed to the cutter by the synchronous belt and is vertically cut at the tobacco segment by the cutter.

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