A spiral rupture and conveying device for cigarettes

Abstract

The present application relates to a spiral crushing and conveying device for cigarettes, which includes a mounting seat, a barrel, a rotating shaft, a driving device, and a spiral blade arranged on the rotating shaft; an extrusion piece is arranged on the rotating shaft in the area between two adjacent spiral turns of the spiral blade, and the extrusion piece protrudes from the outer surface of the rotating shaft and extends between the rotating shaft and the inner wall of the barrel to squeeze the cigarettes conveyed in the barrel. According to the spiral crushing and conveying device for cigarettes provided by the embodiment of the present application, the defective cigarettes to be processed are rubbed, squeezed and crushed during the process of being conveyed forward by the spiral blades in the barrel, and the squeezing effect of the extrusion piece can effectively separate the tobacco from the cigarette paper, which can effectively reduce the degree of damage to the cigarette paper, and the filter tip has higher toughness than the tobacco shreds, and is less likely to be damaged, which can reduce the content of broken cigarette paper and filter tip debris, which is conducive to improving the purity of the tobacco shreds to be processed later.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco shred recovery, and in particular to a spiral rupturing and conveying device for cigarettes. Background Art

[0002] In the process of producing cigarettes, cigarette factories will produce a large number of defective cigarettes. In order to avoid waste, cigarette factories will recycle the tobacco from the defective cigarettes. At present, the most widely used process is the circular screening drum process, which feeds the defective cigarettes into the circular screening drum, which rotates to break the cigarettes, and then transports the broken cigarettes to the subsequent screening process to screen out the tobacco. However, in the actual processing of defective cigarette paper, the processing effect of the circular screening drum is not very ideal and there are certain disadvantages. The principle of the circular screening drum is to cause collisions between defective cigarettes and between cigarettes and the drum wall through rotation, thereby causing the cigarettes to break, so that the subsequent screening process can separate the tobacco. Therefore, In order to improve the separation effect of tobacco shreds, the rotation speed of the circular screening drum is increased to make the cigarettes more deeply broken. However, when the rotation speed of the circular screening drum is high, the degree of breaking of the cigarette paper is also increased, which in turn causes an increase in the content of fine cigarette paper and filter debris in the tobacco shreds. In subsequent processing, the purity of the recovered tobacco is reduced. If the circular screening drum maintains a low rotation speed, the degree of breaking of the cigarette paper can be significantly reduced, and the content of broken cigarette paper in the recovered tobacco can be reduced. The purity of the recovered tobacco is improved in subsequent screening processing. However, the circular screening drum with a low rotation speed will reduce the breaking effect of the cigarettes, making the separation of the tobacco shreds not thorough enough, and there is a phenomenon that the tobacco shreds cannot be separated cleanly from the cigarette paper. Utility Model Content

[0003] The purpose of the present application is to provide a spiral conveying device for cigarettes, which can improve the processing effect of defective cigarettes, thereby effectively solving the shortcomings of the prior art.

[0004] To this end, in a first aspect, an embodiment of the present application provides a spiral rupture and delivery device for cigarettes, comprising:

[0005] Mounting seat;

[0006] A barrel is arranged on the mounting seat, the barrel having a feed port and a discharge port, the feed port and the discharge port are arranged along the length direction of the barrel, and the portion of the barrel between the discharge port and the feed port is of a preset length;

[0007] A rotating shaft extends into the barrel, and a spiral blade is arranged on the rotating shaft along the length direction, and the spiral blade is located in the space between the rotating shaft and the inner wall of the barrel;

[0008] A driving device connected to the rotating shaft to drive the spiral blade to rotate through the rotating shaft to transport the cigarettes in the barrel from the feed port to the discharge port;

[0009] Wherein, an extrusion piece is arranged on the rotating shaft in the area between two adjacent spiral turns of the spiral blade, and the extrusion piece protrudes from the outer surface of the rotating shaft and extends into the space between the rotating shaft and the inner wall of the barrel to extrude the cigarettes transported in the barrel.

[0010] In a possible implementation, the extruder includes a contact portion and a connecting portion, the contact portion and the connecting portion are connected, the contact portion is used to extrude the cigarettes transported in the barrel, and the contact portion is connected to the outer periphery of the rotating shaft through the connecting portion.

[0011] In a possible implementation, the contact portion is hemispherical, has a flat end surface and an arcuate surface, the connecting portion is columnar, one end of the connecting portion is connected to the flat end surface of the contact portion, and the other end of the connecting portion is threadedly connected to the rotating shaft.

[0012] In a possible implementation, the connection portion and the flat end surface are vertically connected, a radial connection hole is opened on the outer circumference of the rotating shaft, and the connection portion is threadedly connected to the connection hole.

[0013] In a possible implementation, there are multiple extrusion pieces in the area between two adjacent spiral turns of the spiral blade on the rotating shaft.

[0014] In a possible implementation, the extrusion members on the rotating shaft are arranged along a line on the same side of the rotating shaft.

[0015] In a possible implementation, the feed port of the barrel is arranged upward and a feed hopper is arranged at the feed port, and / or the discharge port of the barrel is arranged downward and a discharge hopper is arranged at the discharge port.

[0016] In a possible implementation, the pitch of the spiral blade is not greater than the length of the cigarette to be conveyed, and the distance between the outer peripheral edge of the spiral blade and the inner wall of the barrel is not greater than the diameter of the cigarette to be conveyed.

[0017] In a possible implementation, a conveying device is further included, and the conveying device is located below the discharge port so that the cigarettes in the barrel are transferred to the conveying device through the discharge port.

[0018] In a second aspect, the present application provides a spiral rupture and conveyance method for cigarettes, which is applied to the above-mentioned spiral rupture and conveyance device for cigarettes, and comprises the following steps:

[0019] A. Determine the length and diameter of the cigarette to be processed;

[0020] B. According to the length and diameter of the cigarette to be processed obtained in step A, a barrel is selected, the inner diameter of the barrel is R, and the distance from the feed port to the discharge port on the barrel is a preset length L;

[0021] C. According to the length and diameter of the cigarette to be processed obtained in step A, a spiral blade is installed in the barrel, the pitch of the spiral blade is S, the nominal diameter of the spiral blade is D, the pitch of the spiral blade is not greater than the length of the cigarette, and the distance between the outer peripheral edge of the spiral blade and the inner wall of the barrel is not greater than the diameter of the cigarette;

[0022] D. Set the speed of the drive device to n, in r / min, and calculate the mass delivery of the barrel as follows:

[0023] I m =ρI V ,

[0024] Among them, I m Indicates the mass delivery of the barrel in t / h, I v Indicates the volumetric delivery of the barrel, in m 3 / h, ρ represents bulk density, unit is t / m 3 , where A=π(R / 2) 2 , and ν=Sn / 60, A represents the inner axial projection area of ​​the barrel, in m 2 , ν represents the conveying speed of the barrel, the unit is m / s,

[0025] So we can get:

[0026] I m =15πρΦR 2 Sn,

[0027] Where Φ represents the filling coefficient, and the barrel axis is set horizontally, so the calculation formula for the total driving power P is:

[0028] P=P H +P N ,

[0029] Among them, P H Indicates the power required for cigarette operation, P N Indicates the power when the barrel is unloaded, P, P H and P N The unit is kW, P N =RL / 20,P H =I m Lλg / 3600,λ represents the running resistance coefficient, g represents the acceleration of gravity,

[0030] The power of the driving device is greater than P;

[0031] E. Start the driving device and feed the cigarettes to be processed into the feed hopper. The spiral blades crush the cigarettes, and the processed cigarettes are transferred to the conveying device through the discharge hopper.

[0032] According to the spiral crushing and conveying device for cigarettes provided in the embodiment of the present application, the defective cigarettes to be processed are rubbed, squeezed and crushed during the process of being conveyed forward by the spiral blades in the barrel. In addition, the squeezing effect of the extrusion piece can effectively separate the tobacco from the cigarette paper of the cigarette, which can effectively reduce the degree of damage to the cigarette paper. Moreover, the filter has higher toughness than the tobacco segment and is less likely to be damaged. The content of broken cigarette paper and filter debris can be effectively reduced, which is beneficial to improving the purity of the tobacco that is subsequently processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of a spiral rupture and delivery device for cigarettes provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the partial structure of the spiral rupturing and conveying device for cigarettes provided in an embodiment of the present application;

[0035] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0036] Figure 4 A schematic diagram of the structure of the barrel, the rotating shaft and the spiral blade provided in the embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of a barrel provided in an embodiment of the present application after partial cutaway;

[0038] Figure 6 A schematic diagram of the structure of the cooperation between the rotating shaft and the spiral blades provided in the embodiment of the present application;

[0039] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0040] Figure 8 A schematic diagram of the structure of an extrusion component provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0042] like Figure 1-Figure 8 As shown, the embodiment of the present application provides a spiral crushing and conveying device 200 for cigarettes, which is applied to the tobacco recycling process in the cigarette factory. A large number of defective cigarettes are generated in the process of cigarette production, and the defective cigarettes generated every day are at the level of several tons. Faced with a large number of defective cigarettes, a more effective recycling method is still the physical screening method, such as the circular screening drum crushing method, by feeding the defective cigarettes into the circular screening drum, the circular screening drum is rotated to break and crush the cigarettes inside, and then through subsequent screening, the tobacco in the crushed cigarettes is separated. However, in practice, the processing technology of the circular screening drum always has certain disadvantages. For example, in order to improve the efficiency of tobacco recycling, it is usually necessary to increase the rotation speed of the circular screening drum. If the rotation speed of the circular screening drum is increased, the degree of damage to the defective cigarettes will be significantly increased. The cigarettes are excessively broken and crushed, which greatly increases the level of cigarette crushing, and also produces more filter fiber fragments and cigarette paper fragments, which affects the purity of the tobacco. Conversely, in order to improve the purity of the recycled tobacco, it is necessary to reduce the rotation speed of the circular screening drum. After the rotation speed of the circular screening drum is reduced, the degree of damage to the defective cigarettes is reduced, which reduces the level of cigarette crushing. The degree of cigarette damage is insufficient, so that most of the cigarette papers still have tobacco. The tobacco recovery is not thorough enough, and the separation effect of the tobacco is poor during subsequent screening, resulting in waste of tobacco. The spiral crushing and conveying device 200 for cigarettes provided in the present application is intended to solve the above-mentioned problems. In the process of recycling tobacco from defective cigarettes, a relatively ideal equilibrium state can be achieved, so that the separation effect of the tobacco and the purity of the tobacco are at a relatively ideal level.

[0043] Specifically, the spiral breaking and conveying device 200 for cigarettes includes a mounting seat 100, a barrel 3, a rotating shaft 4 and a driving device 5. The mounting seat 100 can be a simple working surface or a table-type working table. The barrel 3 is arranged on the mounting seat 100. Specifically, a plurality of mounting brackets 101 can be arranged on the mounting seat 100. The barrel 3 is horizontally mounted on the mounting seat 100 through the mounting brackets 101. The barrel 3 is a cylindrical structure with a length. The plurality of mounting brackets 101 are arranged along the length direction of the barrel 3 to increase the installation stability of the barrel 3. Specifically, the barrel 3 has a feed port 301 and a discharge port 302. The feed port 301 and the discharge port 302 are arranged along the length direction of the barrel 3. The portion of the barrel 3 between the feed port 301 and the discharge port 302 is a preset length. Specifically, Both ends of the barrel 3 along the length direction can be set with openings, and the openings at both ends are respectively a feed port 301 and a discharge port 302. Preferably, the feed port 301 and the discharge port 302 are both openings opened on the side wall of the barrel 3, which will be described in detail later. The rotating shaft 4 extends into the interior of the barrel 3, and a coaxial spiral blade 6 is arranged on the rotating shaft 4 along the length direction. The inner side of the spiral blade 6 is connected to the outer surface of the rotating shaft 4, and the outer side of the spiral blade 6 extends outward and has a certain gap between it and the inner wall of the barrel 3. The spiral blade 6 is located in the space between the rotating shaft 4 and the barrel 3 as a whole. The driving device 5 is connected to the rotating shaft 4, and the driving device 5 drives the rotating shaft 4 to rotate, thereby driving the spiral blade 6 to rotate, so that the cigarettes entering the barrel 3 from the feed port 301 are transported to the discharge port 302 of the barrel 3 and discharged.

[0044] More specifically, an extrusion piece 7 is provided in the area between two adjacent spiral coils of the spiral blade 6 on the rotating shaft 4. The extrusion piece 7 protrudes from the outer surface of the rotating shaft 4 and extends into the space between the rotating shaft 4 and the barrel 3. When the cigarette is conveyed in the barrel 3, the extrusion piece 7 can interfere with and squeeze the cigarette. On the one hand, the barrel 3 and the spiral blade 6 cooperate to convey defective cigarettes. In the process of conveying, the spiral blade 6 cooperates with the inner wall of the barrel 3 to cause a considerable degree of friction and squeezing on the cigarette, which may cause the cigarette to break or rupture. In addition, the interference and squeezing of the extrusion piece 7 on the rotating shaft 4 can effectively crush the cigarette, which is convenient for subsequent screening and processing. Moreover, the rotation speed of the spiral blade 6 will affect The speed at which the cigarettes are conveyed forward will affect the amount of cigarettes conveyed per unit time, while the effect on the degree of damage to the cigarettes is not obvious at a low rotation speed. In addition, it is found in actual operation and debugging that the factor affecting the degree of damage to the cigarettes is the distance the cigarettes are conveyed by the spiral blades 6 in the barrel 3, that is, the distance between the feed port 301 and the discharge port 302. Therefore, the distance between the feed port 301 and the discharge port 302 is set to a preset length. The preset length is set to different values ​​according to the defective cigarettes of different specifications and models. Specifically, a more optional solution in practice is to set an axle seat on the mounting seat 100, and after one end of the rotating shaft 4 is connected to the driving device 5, the area on the rotating shaft 4 close to the driving device 5 and the axle seat can be rotatably installed, and the rotating shaft 4 is horizontal The setting is that a fixing bracket 102 can be set on the mounting seat 100, and the driving device 5 is installed on the fixing bracket 102. The part from the other end of the rotating shaft 4 to the shaft seat is in a suspended state and can extend into the barrel 3. The barrel 3 and the mounting bracket 101 can be detachably connected by screws, etc., and both ends of the barrel 3 are set with openings, so that the barrel 3 can be put on the outside of the rotating shaft 4 and the spiral blade 6. Such a setting is convenient for replacing the barrel 3, and a plurality of barrels 3 of the same specifications can be pre-set. The spacing between the feed port 301 and the discharge port 302 on each barrel 3 is different, and the size of the feed port 301 and the discharge port 302 on each barrel 3 is the same. In this way, the model and specification of each barrel 3 are the same, and the production of components of the same specification is conducive to To control costs, by setting the distance between the feed port 301 and the discharge port 302 on each barrel 3, the cigarette conveying distance can be adjusted, so as to cope with the recycling of cigarettes of different specifications and models. When processing the corresponding cigarettes, the corresponding barrel 3 is selected. The length between the feed port 301 and the discharge port 302 is the conveying length of the cigarettes, which represents the degree of crushing of the cigarettes. After the cigarettes are sent out from the discharge port 302, the cigarettes can be crushed to a good effect, avoiding excessive crushing of the cigarettes, which is beneficial to improving the purity of the tobacco during the screening process. In addition, during the conveying process, the cigarettes are effectively destroyed under the action of the extruder 7 and the spiral blade 6, so that the tobacco and cigarette paper are effectively separated during the subsequent screening process.

[0045] Therefore, the spiral crushing and conveying device 200 for cigarettes disclosed in the present application can achieve a relatively ideal crushing effect for cigarettes. During the subsequent screening, it can improve the purity of tobacco shreds, and is more conducive to the separation between cigarette paper and tobacco shreds. At the same time, it can also realize the transfer and conveyance of cigarettes, and facilitate the layout arrangement of various equipment.

[0046] Specifically, the extrusion member 7 may include a contact portion 701 and a connection portion 702, the contact portion 701 and the connection portion 702 are connected to each other, the contact portion 701 protrudes from the outer surface of the rotating shaft 4 to extrude and interfere with the transported cigarette, the connection portion 702 is used to connect to the rotating shaft 4, the contact portion 701 is connected to the rotating shaft 4 through the connection portion 702, and the contact portion 701 may be a columnar structure with a circular cross section, a columnar structure with a polygonal interface, etc. Preferably, the contact portion 701 is a hemispherical The hemispherical contact portion 701 has a flat end face and an arcuate face, the flat end face is a planar end face, and the arcuate face is a hemispherical arcuate face, the arcuate face and the flat end face enclose the hemispherical contact portion 701, the connecting portion 702 is a cylindrical structure, one end of the connecting portion 702 is connected to the flat end face of the contact portion 701, and the other end of the connecting portion 702 is connected to the rotating shaft 4. Specifically, the connecting portion 702 and the rotating shaft 4 are threadedly connected to facilitate the installation and disassembly of the extrusion member 7.

[0047] More specifically, the flat end faces of the connecting portion 702 and the contact portion 701 are arranged perpendicular to each other, and a radial connecting hole is arranged on the outer periphery of the rotating shaft 4. The connecting portion 702 is threadedly connected to the connecting hole, so that the circular protrusion on the outermost periphery of the contact portion 701 extends radially outward, and the overall structure is more symmetrical, which is conducive to the interference and crushing of cigarettes. Specifically, the connecting holes on the rotating shaft 4 are arranged on the same side of the rotating shaft 4 and are arranged linearly, so that the extrusion members 7 as a whole are also arranged linearly and are on the same side of the rotating shaft 4, and each extrusion member 7 can interfere with and crush the cigarettes synchronously and evenly.

[0048] After the contact part 701 is connected to the rotating shaft 4 through the connecting part 702, the flat end surface of the contact part 701 abuts against the outer peripheral surface of the rotating shaft 4. In addition, a slot can be provided on the contact part 701 to facilitate screwing with a screwdriver or the like.

[0049] The number of extrusion members 7 between two adjacent spiral turns can be one or more. When multiple extrusion members are provided, the crushing effect on cigarettes can be improved. Specifically, for each extrusion member 7 between two adjacent spiral turns, the sum of the axial lengths occupied by each contact portion 701 is not greater than one third of the pitch of the spiral blade 6, so as to maintain an appropriate interference crushing effect on cigarettes.

[0050] More specifically, the feed port 301 is arranged in an area of ​​the barrel 3 close to the driving device 5, and the feed port 301 is arranged on the top side wall of the barrel 3, so that the opening of the feed port 301 faces upward, and a feed hopper 801 can also be arranged at the feed port 301 to facilitate the introduction of cigarettes into the barrel 3, and / or, the discharge port 302 is arranged on an area of ​​the barrel 3 that is closer to the driving device 5 than the feed port 301, and the discharge port 302 is arranged on the bottom side wall of the barrel 3, so that the opening of the discharge port 302 faces downward, and a discharge hopper 802 can also be arranged at the discharge port 302 to facilitate the directional discharge of crushed cigarettes.

[0051] More specifically, in practice, according to the processed cigarettes, the pitch of the spiral blade 6 is not greater than the length of the cigarettes conveyed in the barrel 3, so that the cigarettes can be better broken and crushed in the space between the barrel 3 and the spiral blade 6, and the distance between the outer edge of the spiral blade 6 and the inner wall of the barrel 3 is not greater than the diameter of the cigarettes conveyed in the barrel 3, which can avoid the cigarettes in the gap from being unable to be crushed. When the gap is smaller than the diameter of the cigarette, the edge of the spiral blade 6 and the inner wall of the barrel 3 can cooperate to effectively crush and rub the cigarettes, which is beneficial to improving the crushing effect of the cigarettes.

[0052] More specifically, it may also include a conveying device 200, which is located below the discharge port 302 to facilitate the transfer of processed cigarettes discharged from the discharge port 302 to the conveying device 200, and then to the subsequent process steps. In this embodiment, the conveying device 200 may be a conveyor belt.

[0053] The embodiment of the present application also provides a spiral rupture and conveyance method for cigarettes, which is applied in the spiral rupture and conveyance device 200 for cigarettes. Specifically, the method includes the following steps:

[0054] A. Determine the length and diameter of the cigarette to be processed;

[0055] B. According to the length and diameter of the cigarette to be processed obtained in step A, a barrel 3 is selected, the inner diameter of the barrel 3 is R, and the distance between the feed port 301 and the discharge port 302 on the barrel 3 is a preset length L;

[0056] C. According to the length and diameter of the cigarette to be processed obtained in step A, a spiral blade 6 is installed in the barrel 3, the pitch of the spiral blade 6 is S, the nominal diameter of the spiral blade 6 is D, the pitch of the spiral blade 6 is not greater than the length of the cigarette, and the distance between the outer peripheral edge of the spiral blade 6 and the inner wall of the barrel 3 is not greater than the diameter of the cigarette;

[0057] D. Set the speed of the driving device 5 to n, in units of r / min, and calculate the mass delivery amount of the barrel 3 as follows:

[0058] Im =ρI V ,

[0059] Among them, I m Indicates the mass delivery of barrel 3, in t / h, I v Indicates the volumetric delivery of barrel 3, in m 3 / h, ρ represents bulk density, unit is t / m 3 , where A=π(R / 2) 2 , and ν=Sn / 60, A represents the inner axial projection area of ​​the barrel 3, in m 2 , ν represents the conveying speed of barrel 3, in m / s,

[0060] So we can get:

[0061] I m =15πρΦR 2 Sn,

[0062] Where Φ represents the filling coefficient, and the axis of the barrel 3 is set horizontally, so the calculation formula for the total driving power P can be obtained as follows:

[0063] P=P H +P N ,

[0064] Among them, P H Indicates the power required for cigarette operation, P N Indicates the power of barrel 3 when it is unloaded, P, P H and P N The unit is kW, P N =RL / 20,P H =I m Lλg / 3600,λ represents the running resistance coefficient, g represents the acceleration of gravity,

[0065] The power of the driving device 5 is greater than P;

[0066] E. Start the driving device 5 to feed the cigarettes to be processed into the feed hopper 801 , and the spiral blades 6 crush the cigarettes. The processed cigarettes are transferred to the conveying device 200 through the discharge hopper 802 .

[0067] According to multiple experimental adjustments of the equipment in practice, when cigarettes with a diameter of 7.7 mm are broken, the distance L between the discharge port 302 and the feed port 301 is 2000 mm, which achieves a better breaking effect on the cigarettes. When thin cigarettes with a diameter of 5.5 mm are processed, the breaking effect on the cigarettes is better when L is 2300 mm. Moreover, in actual production, the spiral breaking and conveying device 200 for cigarettes provided in the present application has a significantly better processing effect on cigarettes than the process of the circular screening cylinder, which is specifically reflected in the purity of the tobacco and the separation effect of the tobacco and cigarette paper.

[0068] Specifically, the driving device 5 can be selected as a driving motor, and the output shaft of the driving motor is coaxially connected to the rotating shaft 4. In each step of the spiral rupture and conveying method of cigarettes, a cigarette with a diameter of 7.7 mm or a length of 120 mm is used as an example for explanation. In step B, the distance L between the feed port 301 and the discharge port 302 of the barrel 3 is selected to be 2000 mm, which means that the conveying distance of the cigarette is 2000 mm. In step C, the spiral blade is mainly set according to the length and diameter of the cigarette. The pitch S of the blade 6 is 100 mm, the nominal diameter D of the spiral blade 6 is 160 mm, and the pitch of the spiral blade 6 is not greater than the length of the cigarette. The inner diameter R of the barrel 3 is set to 166 mm, and the distance between the outer peripheral edge of the spiral blade 6 and the inner wall of the barrel 3 is 6 mm, which satisfies the distance between the outer peripheral edge of the spiral blade 6 and the inner wall of the barrel 3 is not greater than the diameter of the cigarette, and the cigarette can be effectively broken and ruptured. Specifically, in step D, the speed n of the driving motor is set to 40 r / min. In the calculation formula I m =ρI V According to the characteristics of cigarettes, ρ is set to 0.32, Φ is set to 0.33, and λ is set to 1.1. m =15πρΦR 2 Sn, so I m =0.174594816π(t / h), by P N =RL / 20=0.0166 (kW), by P H =I m Lλg / 3600=0.00106696832π(kW), so P=P H +P N ≈0.02kW.

[0069] Similarly, when the speed of the drive motor is 140r / min, P≈0.028kW. When selecting the drive motor, the power of the drive motor must be greater than the power value of P obtained. Specifically, the rated power of the drive motor must be greater than the power value of P obtained.

[0070] More specifically, in practice, in order to improve the universality of the equipment and avoid frequent replacement of multiple parts, when setting the size of the spiral blade 6, the gap between the spiral blade 6 and the barrel 3 can be set to 4.5 mm, because the diameter of the thinnest cigarettes produced in practice is above 5 mm. At that time, only the barrel 3 needs to be replaced according to the cigarettes processed.

[0071] The working principle of the present application is as follows: when using the spiral crushing and conveying device for cigarettes provided by the present application to recover tobacco shreds from defective cigarettes, first determine the length and diameter of the cigarettes to be processed, and select a suitable barrel 3 based on the length and diameter data of the cigarettes. When the spiral crushing and conveying method for cigarettes provided by the present application is applied to the spiral crushing and conveying device 200 for cigarettes, select the barrel 3 and the spiral blade 6 according to the above steps, and then feed the cigarettes to be processed into the barrel 3 through the feed hopper 801. Driven by the driving motor, the rotating shaft 4 rotates, thereby driving the spiral blade 6 to rotate. When the spiral blade 6 rotates, it drives the defective cigarettes The cigarettes are conveyed forward in the barrel 3, while cooperating with the inner wall of the barrel 3 to rub, squeeze and crush the cigarettes. In addition, the interference of the extruder 7 makes the cigarettes effectively broken and fractured in the barrel 3. The processed cigarettes are transferred to the conveying device 200 through the discharge hopper 802. The processed cigarettes are sent to the subsequent screening process through the conveying device 200 to separate the tobacco. Specifically, the conveying device 200 can also be a vibrating screen. The cigarettes processed by the spiral crushing conveying device 200 directly fall on the vibrating screen to separate the tobacco therein, and the remaining cigarette paper and filter tip are conveyed forward and collected.

[0072] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0073] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0074] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0075] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these 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 spiral cigarette rupture and conveying device, characterized in that: include: Mounting seat; A barrel is arranged on the mounting seat, the barrel having a feed port and a discharge port, the feed port and the discharge port are arranged along the length direction of the barrel, and the portion of the barrel between the discharge port and the feed port is of a preset length; A rotating shaft extends into the barrel, and a spiral blade is arranged on the rotating shaft along the length direction, and the spiral blade is located in the space between the rotating shaft and the inner wall of the barrel; A driving device connected to the rotating shaft to drive the spiral blade to rotate through the rotating shaft to transport the cigarettes in the barrel from the feed port to the discharge port; Wherein, an extrusion piece is arranged on the rotating shaft in the area between two adjacent spiral turns of the spiral blade, and the extrusion piece protrudes from the outer surface of the rotating shaft and extends into the space between the rotating shaft and the inner wall of the barrel to extrude the cigarettes transported in the barrel.

2. The spiral cigarette rupturing and conveying device according to claim 1, characterized in that: The extruder comprises a contact portion and a connecting portion, the contact portion and the connecting portion are connected, the contact portion is used to extrude the cigarettes transported in the barrel, and the contact portion is connected to the outer periphery of the rotating shaft through the connecting portion.

3. The spiral cigarette rupturing and conveying device according to claim 2, characterized in that: The contact part is hemispherical, has a flat end surface and an arc surface, the connecting part is columnar, one end of the connecting part is connected to the flat end surface of the contact part, and the other end of the connecting part is threadedly connected to the rotating shaft.

4. The spiral cigarette rupturing and conveying device according to claim 3, characterized in that: The connecting portion is vertically connected to the flat end surface, a radial connecting hole is opened on the outer circumference of the rotating shaft, and the connecting portion is threadedly connected to the connecting hole.

5. The spiral rupture and conveying device for cigarettes according to claim 1, characterized in that: There are multiple extrusion pieces on the rotating shaft in the area between two adjacent spiral turns of the spiral blade.

6. The spiral cigarette rupturing and conveying device according to claim 1, characterized in that: The extrusion members on the rotating shaft are arranged along a line on the same side of the rotating shaft.

7. The spiral cigarette rupturing and conveying device according to claim 1, characterized in that: The feed port of the barrel is arranged upward and a feed hopper is arranged at the feed port, and / or the discharge port of the barrel is arranged downward and a discharge hopper is arranged at the discharge port.

8. The spiral cigarette rupturing and conveying device according to claim 1, characterized in that: The pitch of the spiral blade is not greater than the length of the cigarette to be transported, and the distance between the outer peripheral edge of the spiral blade and the inner wall of the barrel is not greater than the diameter of the cigarette to be transported.

9. The spiral cigarette rupturing and conveying device according to claim 1, characterized in that: It also includes a conveying device, which is located below the discharge port so that the cigarettes in the barrel can be transferred to the conveying device through the discharge port.

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