Tobacco shred filling amount adjusting device and cigarette making and plug assembling machine

Abstract

The utility model relates to a tobacco shred filling amount adjusting device and a cigarette making and plug assembling machine, the tobacco shred filling amount adjusting device comprises an adjusting assembly, the adjusting assembly comprises a pressing plate, a power piece and a first transmission assembly, the pressing plate is arranged on the side, away from tobacco shreds, of a tobacco shred suction belt and abuts against the tobacco shred suction belt, and the first transmission assembly is connected with the power piece and the pressing plate; the first transmission assembly is configured to transmit the acting force provided by the power piece to the pressing plate so as to drive the pressing plate to move, and then the abutting force between the pressing plate and the cut tobacco suction belt is adjusted. The pressing plate pushes the cut tobacco suction belt, the abutting force between the pressing plate and the cut tobacco suction belt is adjusted, then the distance between the cut tobacco suction belt and the leveling device is adjusted, the position of the leveling device does not need to be adjusted, the leveling device is always kept parallel to a cut tobacco channel, and the situation that the leveling device is obliquely inserted into cut tobacco, and cut tobacco bundles are split is avoided; the mode of trimming the tobacco shreds by the leveler keeps linear trimming all the time, so that the cigarette weight adjusting precision can be improved, and the continuity and stability of tobacco shred conveying are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette manufacturing, in particular to a tobacco filling amount regulating device and a cigarette rolling machine provided with the tobacco filling amount regulating device. Background Art

[0002] In some related technologies, the negative pressure in the air chamber firmly adsorbs the tobacco under the breathable mesh suction belt, and the tobacco moves along the suction belt to form a tobacco bundle. The tobacco bundle is trimmed of excess tobacco by a leveler and then transported to the tobacco gun, where it is wrapped with cigarette paper and rolled and glued to form a tobacco rod.

[0003] In the above process, the tobacco density can be detected and converted into the average weight of the cigarettes, and the average weight of the cigarettes can be compared with the set weight of the cigarettes. If the weight of the tobacco rods is too heavy or too light, the leveler is rotated to make the chopping disk of the leveler move upward or downward to trim more or less tobacco to form a tobacco bundle that meets the weight requirements.

[0004] Theoretically, the chopping disc of the leveler should be parallel to the tobacco channel, but after turning the leveler, the chopping disc and the tobacco channel are not parallel. The tilted chopping disc will split the tobacco bundle, and the way the chopping disc trims the tobacco changes from straight line trimming when it is parallel to the inclined trimming, which affects the accuracy of cigarette weight adjustment and the continuity of tobacco delivery. Utility Model Content

[0005] Some embodiments of the present utility model provide a tobacco filling amount adjustment device and a tobacco rolling machine, which are used to improve the adjustment accuracy of cigarette weight.

[0006] In one aspect of the utility model, a device for adjusting the amount of tobacco filling is provided, comprising:

[0007] The adjusting assembly includes a pressing plate, a power member and a first transmission assembly. The pressing plate is arranged on the side of the suction belt away from the tobacco and abuts against the suction belt. The first transmission assembly connects the power member and the pressing plate. The first transmission assembly is configured to transmit the force provided by the power member to the pressing plate to drive the pressing plate to move, thereby adjusting the abutment force between the pressing plate and the suction belt.

[0008] In some embodiments, the first transmission assembly includes:

[0009] A first transmission shaft extending along a first direction; and

[0010] A first eccentric assembly is disposed at the first end of the first transmission shaft, and the first eccentric assembly is drivingly connected to the pressure plate so that the pressure plate moves toward or away from the suction ribbon along a second direction; the second direction is different from the first direction.

[0011] In some embodiments, the first transmission assembly further includes:

[0012] A first helical gear, disposed on the first transmission shaft;

[0013] A second transmission shaft connected to the power member, the second transmission shaft extending along a second direction; and

[0014] The second bevel gear is disposed on the second transmission shaft, and the second bevel gear is meshed with the first bevel gear.

[0015] In some embodiments, the adjustment assembly further includes a second transmission assembly, wherein the second transmission assembly includes:

[0016] a movable frame connected to the first eccentric assembly; and

[0017] A rod connects the movable frame and the pressing plate.

[0018] In some embodiments, the first eccentric assembly comprises:

[0019] A pin shaft, a first end of which is disposed at an eccentric position of the first end of the first transmission shaft; and

[0020] The first bearing is arranged at the second end of the pin shaft, and the first pin shaft extends into the strip hole arranged on the movable frame.

[0021] In some embodiments, the adjustment assembly further includes a fixed seat, and the second transmission assembly further includes a guide shaft disposed on the fixed seat, and the guide shaft is passed through the movable frame to guide the movement of the movable frame.

[0022] In some embodiments, the adjustment assembly further includes a first detection mechanism configured to detect a displacement of the pressure plate.

[0023] In some embodiments, the first detection mechanism includes:

[0024] A second eccentric assembly, disposed at the second end of the first transmission shaft; and

[0025] The sensor is arranged on the second eccentric component.

[0026] In some embodiments, the second eccentric assembly comprises:

[0027] An eccentric seat, disposed at the second end of the first transmission shaft;

[0028] an eccentric shaft, a first end of which is connected to the eccentric seat; and

[0029] The second bearing is arranged at the second end of the eccentric shaft, and the second bearing abuts against the contact of the sensor.

[0030] In some embodiments, the tobacco filling amount adjustment device further includes:

[0031] A suction ribbon configured to absorb and transport the tobacco; and

[0032] A leveler, disposed below the suction belt, configured to trim the shredded tobacco adsorbed and transported by the suction belt;

[0033] The adjustment component further comprises a second detection mechanism, which is configured to detect the amount of tobacco shreds absorbed and transported by the suction ribbon, so as to serve as a basis for adjusting the distance between the suction ribbon and the leveler.

[0034] In one aspect of the utility model, a tobacco roulade is provided, comprising a tobacco filling amount adjusting device according to any one of the above embodiments.

[0035] Based on the above technical solution, the utility model has at least the following beneficial effects:

[0036] In some embodiments, the force provided by the power component is transmitted to the pressure plate through the first transmission component of the adjustment component to drive the pressure plate to move, adjust the distance between the pressure plate and the leveler, and then adjust the distance between the suction belt and the leveler. There is no need to adjust the position of the leveler, so that the position of the leveler can be fixed and always remain parallel to the tobacco channel, and the tobacco bundle will not be split due to the leveler being inserted into the tobacco at an angle. The way in which the splitting knife disk of the leveler trims the tobacco always maintains straight trimming when it is parallel, which can improve the accuracy of cigarette weight adjustment and ensure the continuity and stability of tobacco transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0038] Figure 1 A schematic diagram of a tobacco filling amount adjustment device provided according to some embodiments of the utility model;

[0039] Figure 2 A schematic diagram of an adjustment assembly provided between two carrying rollers according to some embodiments of the utility model;

[0040] Figure 3 A schematic diagram of an adjustment assembly provided according to some embodiments of the utility model;

[0041] Figure 4 for Figure 3 Schematic diagram of top view;

[0042] Figure 5 for Figure 4 AA cross-sectional view of ;

[0043] Figure 6 for Figure 3 A schematic diagram of the main view;

[0044] Figure 7 for Figure 6 BB cross-sectional diagram;

[0045] Figure 8 It is a partial cross-sectional schematic diagram of an adjustment assembly according to some embodiments of the utility model.

[0046] The following are the descriptions of the reference numerals:

[0047] 100-suction ribbon; 200-leveler; 300-adjustment component; 400-tobacco; 401-tobacco before trimming; 402-tobacco trimmed; 403-tobacco trimmed; 500-smoking gun; 600-support roller; 700-wall;

[0048] 1-belt pressing mechanism; 11-pressing plate; 12-second transmission assembly; 121-movable frame; 1211-strip hole; 122-rod; 123-guide shaft; 13-fixed seat;

[0049] 2-power mechanism; 21-power member; 211-power shaft; 22-first transmission assembly; 221-first transmission shaft; 222-first eccentric assembly; 2221-pin shaft; 2222-first bearing; 223-first bevel gear; 224-second bevel gear; 225-second transmission shaft; 23-box;

[0050] 3-first detection mechanism; 31-sensor; 32-second eccentric assembly; 321-eccentric seat; 322-eccentric shaft; 323-second bearing; 33-flange seat.

[0051] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0052] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0053] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] In the present invention, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices but have an intermediate device.

[0055] All terms (including technical terms or scientific terms) used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0056] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0057] Figure 1 Schematic diagram of the structure of some embodiments of the tobacco filling amount adjustment device according to the utility model. Figure 1 In some embodiments, the tobacco filling amount adjustment device includes a suction belt 100 and a leveler 200 .

[0058] The suction ribbon 100 is configured to absorb and transport the tobacco shreds 400 .

[0059] The leveler 200 is disposed below the suction belt 100 and is configured to trim the shredded tobacco 400 sucked and transported by the suction belt 100 .

[0060] refer to Figure 1 , Figure 2 and Figure 3 In some embodiments, the tobacco filling amount adjustment device includes an adjustment component 300. The adjustment component 300 includes a pressing plate 11 and a power mechanism 2. The pressing plate 11 is arranged on the side of the suction ribbon 100 away from the tobacco 400 and abuts against the suction ribbon 100. The power mechanism 2 is driven and connected to the pressing plate 11 to control the distance between the pressing plate 11 and the leveler 200, thereby adjusting the distance between the suction ribbon 100 and the leveler 200.

[0061] In some embodiments, the tobacco filling amount adjustment device is arranged in the air chamber.

[0062] In some embodiments, the tobacco filling amount adjusting device further comprises a negative pressure device, which is arranged in the air chamber and provides negative pressure to make the tobacco 400 adsorbed under the suction belt 100 .

[0063] In some embodiments, the tobacco filling amount adjustment device further includes a tobacco gun 500, which is used to roll the tobacco 400 into a tobacco rod.

[0064] refer to Figure 1 and Figure 2 During the operation of the tobacco filling amount adjustment device, the negative pressure device provides negative pressure, and the tobacco 400 thrown into the suction channel by the throwing roller is firmly adsorbed under the breathable suction belt 100 by the negative pressure. The tobacco 400 moves continuously with the suction belt 100 to form a tobacco bundle, which is the tobacco 401 before trimming. The tobacco bundle passes through the leveler 200, and the excess tobacco is trimmed by the leveler 200. The trimmed tobacco 02 falls down, and the trimmed tobacco 403 is transported to the cigarette gun 500. The cigarette gun 500 wraps the tobacco 403 with cigarette paper and forms a cigarette rod after rolling and gluing.

[0065] In some embodiments, the suction belt 100 is a nylon mesh suction belt having a plurality of holes.

[0066] In the above embodiment, the trimming amount of the tobacco shreds trimmed by the leveler 200 can be adjusted by the adjustment component 300, specifically: the density of the tobacco shreds 400 adsorbed by the suction belt 100 is converted into the average weight of the cigarettes, and the average weight of the cigarettes is compared with the set weight of the cigarettes:

[0067] If the average weight of the cigarettes is greater than the weight of the cigarettes, the pressing plate 11 is driven by the power mechanism 2 to move toward the suction belt 100, thereby increasing the abutment force between the pressing plate 11 and the suction belt 100, increasing the deformation of the suction belt 100 toward the leveler 200, and reducing the distance between the suction belt 100 and the leveler 200, so that the leveler 200 can trim more tobacco 400.

[0068] If the average weight of the cigarettes is less than the weight of the cigarettes, the power mechanism 2 drives the pressing plate 11 to move away from the suction belt 100, thereby reducing the abutment force between the pressing plate 11 and the suction belt 100, reducing the deformation of the suction belt 100 due to the force toward the leveler 200, and increasing the distance between the suction belt 100 and the leveler 200, so that the leveler 200 can trim less tobacco 400.

[0069] In some embodiments, the leveler 200 includes a chopping knife disk, which is parallel to the tobacco channel. The tobacco channel is a channel through which the tobacco runs along the suction belt 100.

[0070] In the above embodiment, the pressure plate 11 is driven to move by the power mechanism 2 of the adjustment component 300 to adjust the distance between the suction belt 100 and the leveler 200. There is no need to adjust the position of the leveler 200, so the position of the leveler 200 can be fixed and always kept parallel to the tobacco channel, and the leveler 200 will not be inserted into the tobacco at an angle and split the tobacco bundle. The way in which the splitting knife disc trims the tobacco always maintains straight trimming when it is parallel, which can improve the accuracy of cigarette weight adjustment and ensure the continuity and stability of tobacco transportation.

[0071] Since the position of the leveler 200 is fixed, the leveler 200 does not need to be rotated, so the failure of the seal of the leveler 200 can be reduced, thereby saving costs.

[0072] refer to Figure 2 In some embodiments, the tobacco filling amount adjustment device further includes a plurality of supporting rollers 600 , and the plurality of supporting rollers 600 are used to support the suction ribbon 100 .

[0073] Since the suction belt 100 between two adjacent support rollers 600 lacks effective support, the suction belt 100 will bend upward under the action of negative pressure. When the tobacco 400 moves with the suction belt 100, it is not in a horizontal motion state, but moves forward in a wave-like manner, which causes a certain fluctuation in the amount of tobacco trimmed by the chopping disc. Based on this, in the embodiment of the present disclosure, the adjustment component 300 is set between two adjacent support rollers 600, and abuts against the suction belt 100 through the pressure plate 11, so that the suction belt 100 section between the two adjacent support rollers 600 is effectively supported, the suction belt 100 is kept flat, and the chopping disc of the leveler 2 trims the tobacco in a straight line at all times when it is parallel, which can improve the accuracy of cigarette weight adjustment and ensure the continuity and stability of tobacco transportation.

[0074] In the above embodiment, during the process of trimming the tobacco by the leveler 200, the pressure plate 11 abuts against the suction belt 100, thereby providing effective support for the suction belt 100, making the suction belt 100 less likely to bend and deform, and the vibration amplitude is greatly reduced. It can also improve the compactness of the tobacco bundle, improve the stability of the tobacco flow transportation, the accuracy of cigarette weight control and the stability of cigarette weight, reduce the empty cigarette rate and improve product quality.

[0075] In some embodiments, the pressing plate 11 is made of a high-hardness and wear-resistant alloy material.

[0076] In some embodiments, a long groove is provided on the pressing plate 11 , so that when the suction belt 100 passes through the pressing plate 11 , negative pressure is transmitted through the long groove.

[0077] In some embodiments, the pressure plate 11 is located between two support rollers 600 closest to the riving disc, and the lower surface of the pressure plate 11 is a working surface.

[0078] refer to Figure 3 In some embodiments, the regulating assembly 300 is disposed on a wall 700 of the wind chamber.

[0079] The adjustment assembly 300 includes a belt pressing mechanism 1 and a power mechanism 2 . The belt pressing mechanism 1 is arranged on one side of the wall 700 in the first direction X, and the power mechanism 2 is arranged on the other side of the wall 700 in the first direction X.

[0080] The belt pressing mechanism 1 includes a pressing plate 11 .

[0081] refer to Figure 5 The power mechanism 2 includes a power member 21 and a first transmission assembly 22 .

[0082] The first transmission assembly 22 connects the power member 21 and the pressing plate 11 , and is configured to transmit the force provided by the power member 21 to the pressing plate 11 to drive the pressing plate 11 to move.

[0083] In the above embodiment, the movement direction of the pressing plate 11 is parallel to the second direction Y.

[0084] In some embodiments, the first direction X intersects with the second direction Y, the first direction X intersects with the third direction Z, and the second direction Y intersects with the third direction Z. Optionally, the first direction X is perpendicular to the second direction Y, the first direction X is perpendicular to the third direction Z, and the second direction Y is perpendicular to the third direction Z.

[0085] Optionally, the second direction Y is a vertical direction or a perpendicular direction, perpendicular to the horizontal plane. The first direction X and the third direction Z are both parallel to the horizontal plane.

[0086] In the above embodiment, the power provided by the power member 21 is transmitted to the pressing plate 11 through the first transmission assembly 22, driving the pressing plate 11 to move so as to adjust the distance between the suction belt 100 and the leveler 200. There is no need to adjust the position of the leveler 200, so that the position of the leveler 200 can be fixed and always kept parallel to the tobacco channel, and the leveler 200 will not be inserted into the tobacco at an angle and split the tobacco bundle. The way in which the splitting knife disc trims the tobacco always maintains straight trimming when it is parallel, which can improve the accuracy of cigarette weight adjustment and ensure the continuity and stability of tobacco transportation.

[0087] Optionally, the power member 21 includes a motor, and the motor includes a stepping motor.

[0088] refer to Figures 3 to 5 In some embodiments, the first transmission assembly 22 includes a first transmission shaft 221 and a first eccentric assembly 222 .

[0089] The first transmission shaft 221 extends along the first direction X.

[0090] The first eccentric assembly 222 is disposed at the first end of the first transmission shaft 221 and is drivingly connected to the pressing plate 11 so that the pressing plate 11 moves toward or away from the suction belt 100 in a second direction Y; the second direction Y is different from the first direction X.

[0091] In the above embodiment, the first transmission shaft 221 transmits power to the first eccentric assembly 222. Due to the eccentric action, the first eccentric assembly 222 drives the pressure plate 11 to move, thereby adjusting the abutment force between the pressure plate 11 and the suction belt 100. The structure is simple and compact, the power transmission distance is short, the operation is smooth and reliable, and the space occupied is small.

[0092] refer to Figures 4 to 7 In some embodiments, the first transmission assembly 22 further includes a first bevel gear 223 , a second transmission shaft 225 and a second bevel gear 224 .

[0093] The first bevel gear 223 is disposed on the first transmission shaft 221 .

[0094] The second transmission shaft 225 is connected to the power member 21 , and the second transmission shaft 225 extends along the second direction Y.

[0095] The second bevel gear 224 is disposed on the second transmission shaft 225 , and the second bevel gear 224 is meshed with the first bevel gear 223 .

[0096] In the above embodiment, the power member 21 is driven and connected to the second transmission shaft 225 extending along the second direction Y. The second transmission shaft 225 transmits power to the first transmission shaft 221 extending along the first direction X through the second bevel gear 224 and the first bevel gear 223. The first transmission shaft 221 transmits power to the pressing plate 11 through the first eccentric assembly 222 to drive the pressing plate 11 to move along the second direction Y. The first transmission shaft 221 and the second transmission shaft 225 are vertically staggered in space, so that the limited space where the suction belt 100 is located can be fully utilized to arrange the adjustment assembly 300.

[0097] In some embodiments, the power member 21 is connected to the second transmission shaft 225 via a coupling. The coupling is a cross slider type, which can compensate for the coaxiality deviation between the power member 21 and the second transmission shaft 225.

[0098] refer to Figure 5 and Figure 8 In some embodiments, the belt pressing mechanism 1 further includes a second transmission assembly 12 , and the second transmission assembly 12 includes a movable frame 121 and a rod 122 .

[0099] The movable frame 121 is connected to the first eccentric assembly 222 .

[0100] The rod 122 connects the movable frame 121 and the pressing plate 11 .

[0101] In the above embodiment, the first eccentric assembly 222 drives the movable frame 121 to move along the second direction Y, the movable frame 121 drives the rod 122 to move, and the rod 122 drives the pressing plate 11 to move.

[0102] In some embodiments, the first eccentric assembly 222 includes a pin shaft 2221 and a first bearing 2222 .

[0103] The first end of the pin shaft 2221 is disposed at an eccentric position of the first end of the first transmission shaft 221 .

[0104] The first bearing 2222 is disposed at the second end of the pin shaft 2221 , and the first pin shaft 2221 extends into the bar-shaped hole 1211 disposed on the movable frame 121 .

[0105] In the above embodiment, the first end of the pin shaft 2221 is arranged at an eccentric position of the first end of the first transmission shaft 221. During the rotation of the first transmission shaft 221, the pin shaft 2221 moves eccentrically, thereby driving the first bearing 2222 to move eccentrically. The first bearing 2222 extends into the strip hole 1211 set on the movable frame 121, and can push the movable frame 121 to move by pushing the inner wall of the strip hole 1211.

[0106] The strip hole 1211 extends along the third direction X, and the strip hole 1211 is used to provide a movement space for the eccentric movement of the first bearing 2222 .

[0107] In some embodiments, the belt pressing mechanism 1 further includes a fixed seat 13 , and the second transmission assembly 12 further includes a guide shaft 123 disposed on the fixed seat 13 . The guide shaft 123 passes through the movable frame 121 , and the guide shaft 123 is used to guide the movement of the movable frame 121 .

[0108] refer to Figure 3 In some embodiments, the adjustment assembly 300 further includes a first detection mechanism 3 , which is configured to detect the displacement of the pressure plate 11 .

[0109] In the above embodiment, the displacement of the pressing plate 11 is detected by the first detecting mechanism 3 to determine whether the displacement of the pressing plate 11 meets the control requirements, and further to determine whether the spacing between the suction ribbon 100 and the leveler 200 meets the control requirements. The purpose is to make the tobacco 400 trimmed by the leveler 200 meet the requirements, that is, after the density of the tobacco 400 adsorbed by the suction ribbon 100 is converted into the average weight of the cigarettes, the average weight of the cigarettes is made the same as the set weight of the cigarettes, so as to improve the accuracy of cigarette weight adjustment and ensure the continuity and stability of tobacco transportation.

[0110] In some embodiments, the first detection mechanism 3 includes a second eccentric component 32 and a sensor 31 .

[0111] The second eccentric assembly 32 is disposed at the second end of the first transmission shaft 221 .

[0112] The sensor 31 is disposed on the second eccentric component 32 .

[0113] In the above embodiment, the first eccentric assembly 222 is arranged at the first end of the first transmission shaft 221, and the second eccentric assembly 32 is arranged at the second end of the first transmission shaft 221. The first eccentric assembly 222 drives the pressure plate 11 to move. Therefore, the movement amount of the pressure plate 11 can be fed back to the sensor 31 through the second eccentric assembly 32. The detection data of the sensor 31 is used to determine whether the movement amount of the pressure plate 11 meets the control requirements.

[0114] refer to Figure 5In some embodiments, the second eccentric assembly 32 includes an eccentric seat 321 , an eccentric shaft 322 and a second bearing 323 .

[0115] The eccentric seat 321 is disposed at the second end of the first transmission shaft 221 .

[0116] A first end of the eccentric shaft 322 is connected to the eccentric seat 321 .

[0117] The second bearing 323 is disposed at the second end of the eccentric shaft 322 , and the second bearing 323 abuts against the contact of the sensor 31 .

[0118] In the above embodiment, the contact of the sensor 31 is placed on the second bearing 323 to monitor the position of the eccentric shaft 322 in real time and feed it back to the controller to determine whether the movement of the pressure plate 11 meets the control requirements.

[0119] In some embodiments, the adjustment component 300 further includes a second detection mechanism, which is configured to detect the amount of tobacco absorbed and transported by the suction ribbon 100 , so as to serve as a basis for adjusting the distance between the suction ribbon 100 and the leveler 200 .

[0120] In some embodiments, the density of the tobacco 400 adsorbed and transported by the suction belt 100 is detected by a second detection mechanism, and a density signal of the adsorbed tobacco 400 is sent to a controller. The density of the tobacco 400 is converted into an average weight of the cigarettes by the controller, and the average weight of the cigarettes is compared with the preset weight of the cigarettes in the controller as a basis for adjusting the distance between the suction belt 100 and the leveler 200.

[0121] If the average weight of the cigarettes is greater than the weight of the cigarettes, the pressing plate 11 is driven by the power mechanism 2 to move toward the suction belt 100, thereby increasing the abutment force between the pressing plate 11 and the suction belt 100, increasing the deformation of the suction belt 100 toward the leveler 200, and reducing the distance between the suction belt 100 and the leveler 200, so that the leveler 200 can trim more tobacco 400.

[0122] If the average weight of the cigarettes is less than the weight of the cigarettes, the power mechanism 2 drives the pressing plate 11 to move away from the suction belt 100, thereby reducing the abutment force between the pressing plate 11 and the suction belt 100, reducing the deformation of the suction belt 100 due to the force toward the leveler 200, and increasing the distance between the suction belt 100 and the leveler 200, so that the leveler 200 can trim less tobacco 400.

[0123] refer to Figures 1 to 8 , some specific embodiments of the tobacco filling amount adjustment device are described in detail below.

[0124] refer to Figure 1The tobacco filling amount adjustment device provided in the embodiment of the utility model includes a suction belt 100, a leveler 200 and an adjustment component 300.

[0125] The suction belt 100 is configured to absorb and convey the tobacco 400. The leveler 200 is disposed below the suction belt 100 and is configured to trim the tobacco 400 absorbed and conveyed by the suction belt 100. The adjustment component 300 is used to adjust the distance between the suction belt 100 and the leveler 200.

[0126] The working process of the tobacco filling amount adjustment device is as follows: the negative pressure device provides negative pressure, and the tobacco 400 is firmly adsorbed under the breathable suction belt 100 by the negative pressure, and the tobacco 400 moves continuously with the suction belt 100 to form a tobacco bundle. The tobacco bundle passes through the leveler 200, and the excess tobacco is trimmed by the leveler 200. The trimmed tobacco 403 is transported to the cigarette gun 500, and the tobacco 403 is wrapped with cigarette paper by the cigarette gun 500 and rolled and glued to form a cigarette rod.

[0127] The amount of tobacco shreds trimmed by the leveler 200 is achieved by adjusting the distance between the suction belt 100 and the leveler 200 through the adjustment component 300. If the average weight of the cigarettes is greater than the weight of the cigarettes, the distance between the suction belt 100 and the leveler 200 is reduced by the adjustment component 300, so that the leveler 200 can trim more tobacco shreds 400; if the average weight of the cigarettes is less than the weight of the cigarettes, the distance between the suction belt 100 and the leveler 200 is increased by the adjustment component 300, so that the leveler 200 can trim less tobacco shreds 400.

[0128] refer to Figure 2 , the suction belt 100 is supported by a number of supporting rollers 600, all of which have the same diameter and the center of the circle is in the same horizontal plane. The suction belt 100 is effectively supported at the supporting rollers 600. In theory, the suction belt 100 should be in a horizontal state to ensure that the amount of tobacco trimmed by the leveler 200 is stable. However, due to the effect of negative pressure, the suction belt 100 between two adjacent supporting rollers 600 lacks effective support and will bend and deform upward. In order to keep the suction belt 100 flat, the adjustment component 300 is set between two adjacent supporting rollers 600, and the pressure plate 11 is in contact with the suction belt 100, so that the suction belt 100 section between the two adjacent supporting rollers 600 is effectively supported, the suction belt 100 is kept flat, and the chopping disc of the leveler 2 trims the tobacco in a straight line when it is always parallel, which can improve the weight adjustment accuracy of the cigarette and ensure the continuity and stability of tobacco transportation.

[0129] refer to Figure 3The adjustment assembly 300 includes a belt pressing mechanism 1, a power mechanism 2 and a first detection mechanism 3. The power mechanism 2 is arranged on the back side of the wall 700 (one side in the first direction X), the first detection mechanism 3 is fixedly arranged at the rear of the power mechanism 2, and the belt pressing mechanism 1 is fixedly connected to the front side of the wall 700 (the other side in the first direction X).

[0130] The power mechanism 2 includes a stepper motor (power element 21) and a box 23. The first detection mechanism 3 includes a flange seat 33 and a sensor 31. The box 23 is fixedly arranged on the back of the wall 700, and the box 23 is connected to the stepper motor. The flange seat 33 is fixedly arranged at the rear of the box 23. The sensor 31 is fixedly connected to the flange seat 33. The belt pressing mechanism 1 includes a pressing plate 11, which is arranged in front of the wall 700 so as to be movable up and down.

[0131] refer to Figure 5 and Figure 7 The power mechanism 2 also includes a first transmission shaft 221 , a first bevel gear 223 , a second transmission shaft 225 and a second bevel gear 224 .

[0132] refer to Figure 7 The stepper motor (power element 21) is connected to the housing 23 by screws, and the power shaft 211 of the stepper motor realizes power transmission with the second transmission shaft 225 through a coupling; the second transmission shaft 225 is assembled in the housing 23 through a needle bearing and an angular contact ball bearing, and the second bevel gear 224 is installed on the second transmission shaft 225 through a key. The second transmission shaft 225 and the second bevel gear 224 are limited by setting a spacer, a screw, and an end cover in cooperation with the housing 23 to keep the relative position fixed.

[0133] refer to Figure 5 The first bevel gear 223 is installed on the first transmission shaft 221 through a key, and the first transmission shaft 221 is installed in the box body 23 through the cooperation of needle bearings and angular contact ball bearings. The first transmission shaft 221 and the first bevel gear 223 are limited by the cooperation of spacers, nuts and the box body 23 to keep the relative position fixed.

[0134] The first transmission shaft 221 and the second transmission shaft 225 are vertically staggered in space in the housing 23 , and power transmission of the two transmission shafts is achieved through the meshing transmission of the second bevel gear 224 and the first bevel gear 223 .

[0135] refer to Figure 5 The first eccentric assembly 222 is disposed at the first end of the first transmission shaft 221 , and the second eccentric assembly 32 is disposed at the second end of the first transmission shaft 221 .

[0136] The first eccentric assembly 222 includes a pin shaft 2221 and a first bearing 2222 .

[0137] The first end of the first transmission shaft 221 passes through the wall 700, and a first eccentric assembly 222 is provided. A through hole is processed on the wall 700 to facilitate the arrangement and power transmission of the first transmission shaft 221. An eccentric threaded hole is processed on the first end of the first transmission shaft 221, and the first end of the pin 2221 is fixedly connected to the first end of the first transmission shaft 221 through threaded fitting, and the second end of the pin 2221 is installed with a first bearing 2222. The first eccentric assembly 222 is used to drive the pressing plate 11 of the belt pressing mechanism 1 to move up and down.

[0138] refer to Figure 8 The belt pressing mechanism 1 includes a pressing plate 11, a movable frame 121, a rod 122, a guide shaft 123 and a fixed seat 13.

[0139] The fixed seat 13 is fixed in front of the wall 700, and a linear bearing is installed on each side of the fixed seat 13. Guide shafts 123 are installed on both sides of the movable frame 121, and the guide shafts 123 are fixedly connected to the movable frame 121. The guide shaft 123 moves up and down in the linear bearing and plays a guiding role. The first bearing 2222 on the pin shaft 2221 extends into the strip hole 1211 on the movable frame 121 through the position relationship, and the first bearing 2222 cooperates with the strip hole 1211 to realize the conversion of the rotational movement of the first transmission shaft 221 into the up and down movement of the movable frame 121. The rod 122 is connected to the movable frame 121 by screws, and the pressure plate 11 is connected to the rod 122 by screws. The box cover is connected to the fixed seat 13 by screws to prevent tobacco or dust from entering the linear bearings or ball bearings in the fixed seat 13, which plays a sealing role. The pressing plate 11 contacts the suction ribbon 100 , and a long groove is provided on the pressing plate 11 to ensure that there is necessary negative pressure when the suction ribbon 100 passes through the position of the pressing plate 11 .

[0140] refer to Figure 5 The first detection mechanism 3 includes a sensor 31, a second eccentric assembly 32 and a flange seat 33. The second eccentric assembly 32 includes an eccentric seat 321, an eccentric shaft 322 and a second bearing 323.

[0141] The flange seat 33 is fixedly connected to the rear part of the housing 23 by screws, the second end of the first transmission shaft 221 extends into the flange seat 33, the eccentric seat 321 is fixedly connected to the second end of the first transmission shaft 221 by a set screw, and an eccentric shaft 322 is provided on the eccentric seat 321, on which a second bearing 323 is mounted by mechanical fit, the sensor 31 is fixedly connected to the upper part of the flange seat 33 by screws, and the contact of the sensor 31 is pressed against the second bearing 323, so as to monitor the position of the eccentric shaft 322 in real time and provide feedback to the controller.

[0142] In some embodiments, the monitoring information of the sensor 31 is fed back to the controller, and the operation of the stepper motor is controlled by the controller. After a series of power transmissions, the up and down movement of the suction belt 100 is controlled, and a weight control mode in which the position of the leveler 200 is fixed and the up and down movement of the suction belt 100 is controlled is achieved. This shortens the power transmission distance, improves the stability of the tobacco trimming amount, improves the accuracy of cigarette weight control, reduces production costs, and improves the quality of cigarettes.

[0143] The pressing plate 11 of the utility model is located between two supporting rollers 600 closest to the chopping blade disc. The working process of the tobacco filling amount adjusting device is explained by taking a single tobacco gun as an example:

[0144] The chopping disc of the leveler 200 is set in a fixed position and is parallel to the tobacco gun fence and maintained at a small gap. When the machine just starts working, the controller converts the received tobacco rod density signal into an average cigarette weight signal and compares it with the preset cigarette weight signal. If the tobacco rod is heavy, a signal is sent to the stepper motor. The stepper motor moves the pressure plate 11 of the belt pressing mechanism 1 downward through the first transmission component 22. The pressure plate 11 pushes the suction belt 100 and the tobacco bundle thereunder to move downward so that the tobacco bundle reaches the theoretical position. The front and rear chopping discs rotate in opposite directions to form a shearing effect. The excess tobacco under the suction belt 100 is trimmed as needed to meet the set weight requirement of the cigarette, and then the tobacco that meets the set weight is sent to the tobacco gun of the rolling and forming machine. When the machine stops, the stepper motor returns to the initial position.

[0145] When the set cigarette weight signal changes, the stepper motor can rotate clockwise or counterclockwise, driving the pin 2221, the first bearing 2222, the movable frame 121, the rod 122, the pressing plate 11, etc. to move slightly up and down, changing the distance between the suction ribbon 100 and the leveler 200. The two chopping blades of the leveler 200 rotate in opposite directions to form a shearing effect, trimming the excess tobacco under the suction ribbon 100 as needed to meet the set cigarette weight requirements. The sensor 31 tracks the actual height of the pressing plate 11 at any time and transmits the information to the controller for processing.

[0146] The power mechanism 2 of the tobacco filling amount adjustment device provided in the embodiment of the utility model designs the transmission of the motor and the transmission shaft of the direct-driven belt pressing mechanism 1 into a vertical staggered transmission, and drives the belt pressing mechanism 1 under the existing equipment conditions with space limitations. The cigarette weight control mode is transformed as follows: the position of the leveler 200 remains fixed, and the seal of the leveler 200 is a static seal, which prolongs the service life of the seal and improves the reliability of the sealing effect. The distance between the suction belt 100 and the leveler 200 is changed by the belt pressing mechanism 1 to increase or decrease the amount of tobacco trimming. At the same time, the pressure plate 11 of the belt pressing mechanism 1 effectively supports the suction belt 100 during the whole process of the leveler 200 trimming the tobacco, and it will not bend or deform, and the vibration amplitude is also greatly reduced, thereby improving the stability of tobacco flow transportation and cigarette weight control.

[0147] The utility model has the advantages of simple and compact structure, short power transmission distance, stable and reliable operation, small space occupation, etc., and the motor can be easily and quickly disassembled. The belt pressing mechanism 1 after applying the utility model can make the amount of tobacco trimmed by the leveler 200 more stable and the tobacco bundle more compact, thereby improving the stability of the weight of the cigarette product, reducing the empty head rate of cigarettes, reducing the failure of the seal of the leveler 200, and reducing production costs. The amount of tobacco trimmed by the leveler is more stable, improving production efficiency and improving the quality of cigarette products. The problem of the swing of the leveler 200 affecting the weight adjustment accuracy of cigarettes in the related art is solved.

[0148] Some embodiments of the present invention further provide a tobacco roto-joining machine, which comprises the tobacco filling amount adjusting device in any of the above embodiments.

[0149] Based on the above-mentioned embodiments of the present invention, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0150] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tobacco filling amount adjustment device, characterized in that: include: The adjusting assembly (300) comprises a pressing plate (11), a power member (21) and a first transmission assembly (22); the pressing plate (11) is arranged on a side of a suction belt (100) away from tobacco shreds (400) and abuts against the suction belt (100); the first transmission assembly (22) connects the power member (21) and the pressing plate (11); the first transmission assembly (22) is configured to transmit the force provided by the power member (21) to the pressing plate (11) to drive the pressing plate (11) to move, thereby adjusting the abutment force between the pressing plate (11) and the suction belt (100).

2. The tobacco filling amount adjusting device according to claim 1, characterized in that: The first transmission assembly (22) comprises: A first transmission shaft (221) extending along a first direction (X); and A first eccentric component (222) is arranged at a first end of the first transmission shaft (221), and the first eccentric component (222) is drivingly connected to the pressing plate (11) so that the pressing plate (11) moves toward the suction belt (100) or moves away from the suction belt (100) along a second direction (Y); the second direction (Y) is different from the first direction (X).

3. The tobacco filling amount adjusting device according to claim 2, characterized in that: The first transmission assembly (22) further comprises: A first bevel gear (223), disposed on the first transmission shaft (221); A second transmission shaft (225) connected to the power member (21), the second transmission shaft (225) extending along a second direction (Y); and The second bevel gear (224) is arranged on the second transmission shaft (225), and the second bevel gear (224) is meshed with the first bevel gear (223).

4. The tobacco filling amount adjusting device according to claim 2, characterized in that: The adjustment assembly (300) further comprises a second transmission assembly (12), wherein the second transmission assembly (12) comprises: A movable frame (121) connected to the first eccentric component (222); and A rod (122) connects the movable frame (121) and the pressing plate (11).

5. The tobacco filling amount adjusting device according to claim 4, characterized in that: The first eccentric component (222) comprises: A pin shaft (2221), a first end of which is disposed at an eccentric position of the first end of the first transmission shaft (221); and The first bearing (2222) is arranged at the second end of the pin shaft (2221), and the pin shaft (2221) extends into the strip-shaped hole (1211) arranged on the movable frame (121).

6. The tobacco filling amount adjusting device according to claim 4, characterized in that: The adjustment assembly (300) further comprises a fixed seat (13), and the second transmission assembly (12) further comprises a guide shaft (123) disposed on the fixed seat (13), and the guide shaft (123) is passed through the movable frame (121) to guide the movement of the movable frame (121).

7. The tobacco filling amount adjusting device according to claim 2, characterized in that: The adjustment assembly (300) further comprises a first detection mechanism (3), wherein the first detection mechanism (3) is configured to detect the displacement of the pressure plate (11).

8. The tobacco filling amount adjusting device according to claim 7, characterized in that: The first detection mechanism (3) comprises: A second eccentric assembly (32) is disposed at the second end of the first transmission shaft (221); and The sensor (31) is arranged on the second eccentric component (32).

9. The tobacco filling amount adjusting device according to claim 8, characterized in that: The second eccentric assembly (32) comprises: An eccentric seat (321) is arranged at the second end of the first transmission shaft (221); An eccentric shaft (322), a first end of which is connected to the eccentric seat (321); and The second bearing (323) is arranged at the second end of the eccentric shaft (322), and the second bearing (323) abuts against the contact of the sensor (31).

10. The tobacco filling amount adjusting device according to claim 1, characterized in that: Also includes: A suction ribbon (100) configured to absorb and transport shredded tobacco (400); as well as A leveler (200) is disposed below the suction belt (100) and is configured to trim the shredded tobacco (400) adsorbed and transported by the suction belt (100); The adjustment component (300) further comprises a second detection mechanism, which is configured to detect the amount of tobacco shreds absorbed and transported by the suction belt (100) so as to serve as a basis for adjusting the distance between the suction belt (100) and the leveler (200).

11. A rolling machine, characterized in that: It comprises the tobacco filling amount adjusting device according to any one of claims 1 to 10.

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