CN115606839A - Multi-section bar microspur separating and conveying device and base rod differential wheel thereof - Google Patents
Multi-section bar microspur separating and conveying device and base rod differential wheel thereof Download PDFInfo
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- CN115606839A CN115606839A CN202211095995.5A CN202211095995A CN115606839A CN 115606839 A CN115606839 A CN 115606839A CN 202211095995 A CN202211095995 A CN 202211095995A CN 115606839 A CN115606839 A CN 115606839A
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- 238000009826 distribution Methods 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000011179 visual inspection Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 14
- 230000033001 locomotion Effects 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
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Abstract
The invention discloses a multi-section bar microspur separating and conveying device and a base rod differential wheel thereof, comprising: a gas distribution base; an intermediate drum; the first eccentric drum wheel and the second eccentric drum wheel are symmetrically arranged relative to the middle drum wheel, and the first eccentric drum wheel and the middle drum wheel and the second eccentric drum wheel and the middle drum wheel are in circumferential limit connection; the main transmission shaft is used for driving the first eccentric drum wheel to rotate so as to synchronously drive the middle drum wheel and the second eccentric drum wheel to rotate; and the first eccentric drum wheel and the second eccentric drum wheel can be close to the middle drum wheel in the cigarette receiving area and separated from the middle drum wheel in the cigarette feeding area. The base rod differential wheel provided by the invention realizes the separation of each base rod section in the process of rotating from the cigarette receiving area to the cigarette feeding area by utilizing the approaching and separating of the first eccentric drum and the second eccentric drum relative to the middle drum, and the device can realize the differential of each base rod section, is convenient and fast to operate and has high transmission efficiency.
Description
Technical Field
The invention relates to the field of tobacco machinery, in particular to a base rod differential wheel. In addition, the invention also relates to a multi-section bar microspur separating and conveying device comprising the base rod differential wheel.
Background
The equipment of the tobacco processing industry, in particular the filter plug machine part, generally takes the form of transport rollers for transporting and combining the base rod segments of filter cigarettes or the base rod segments or the above-mentioned "modules" in heated non-burning cigarettes (HNB).
In the bar conveying process, a plurality of bearing grooves are uniformly distributed on the periphery of the conveying roller, a negative pressure suction air opening is formed in each bearing groove, and the negative pressure suction air enables bars to be attached to the bearing grooves in the roller conveying process. In order to achieve the transfer of the bar stock between the transport rollers, the rod-shaped articles are removed from the delivery transport roller by removing the underpressure of the carrying trough and are simultaneously delivered to the receiving transport roller by the underpressure of the carrying trough. Compressed air can additionally be applied for cleaning via compressed air lines in the carrier tank. The conveying roller is generally used in the process of manufacturing filter-tipped cigarettes in batches and heating non-combustible cigarettes, wherein bar components such as a filter tip, a cooling section, a smoking section, a firmware section and the like which are several times of the using length of a finished cigarette are moved in a short distance along the transverse axial direction and conveyed along the longitudinal axial direction.
In the prior art, in machines for the mass production of filter cigarettes, a conveyor drum is known for the spaced separation of double length rods that abut against each other, called separating wheel, the function of which is to separate the two rods by a distance in order to insert the filter segments. A cylindrical cam is arranged in the separating wheel; the cylindrical cam is fixed and is provided with two cam grooves with opposite curve rising values; when the drum wheel drives the two groups of sliding blocks and the roller to rotate around the center of the drum wheel (namely the center of the cam), the cam pushes the two groups of sliding blocks to do relative reciprocating motion. However, the separation distance that the separating wheel in the prior art can realize is determined by the cam curve lift of the cylindrical cam, the separation distance of the cigarette rod of the traditional cigarette is slightly larger than the double filter tip length, the common separation distance is between 40mm and 90mm, and various base rod sections of the cigarette which is not burnt by heating are formed, when the cigarette is conveyed along the direction of the transverse axis in a combined mode, according to the base rod composite process requirements, the separation distance required between various base rod sections is very short, generally between 1mm and 5 mm. For completing the transmission and the micro-distance separation of the composite base rod, the separation distance is short, the lengths of various base rod sections are also short, and the number of the sections of the base rod assembly is large (more than 3 sections). In the prior art, the separating wheel based on the cam roller sliding block mechanism cannot achieve balanced ideal effects in the aspects of internal space arrangement of mechanical parts, negative pressure airflow channel planning and cleaning airflow channel planning of each section of base rod and mechanism kinematics.
Therefore, how to realize the micro-distance separation and conveying of the multi-segment tobacco rod materials is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide a base rod differential wheel which can realize the short-distance movement and positioning of a plurality of base rod segments along the longitudinal axis direction while the bar to be conveyed is rigidly transferred along the transverse axis direction. Another object of the present invention is to provide a device for the macro separation and conveyance of multi-segment bars comprising the above-mentioned base bar differentiating wheel.
In order to achieve the purpose, the invention provides the following technical scheme:
a base rod differentiating wheel comprising:
the air distribution seat is used for providing negative pressure;
the middle drum wheel is rotatably arranged on the gas distribution seat;
the first eccentric drum wheel and the second eccentric drum wheel are both arranged on the gas distribution seat through eccentric bearings, the first eccentric drum wheel and the second eccentric drum wheel are symmetrically arranged relative to the middle drum wheel, and the first eccentric drum wheel and the middle drum wheel and the second eccentric drum wheel and the middle drum wheel are circumferentially connected in a limiting manner; bearing grooves for adsorbing base rod sections are arranged at corresponding positions of the first eccentric drum wheel, the second eccentric drum wheel and the middle drum wheel, and the gas distribution seat can provide negative pressure for the bearing grooves;
the main transmission shaft is used for driving the first eccentric drum wheel to rotate so as to synchronously drive the middle drum wheel and the second eccentric drum wheel to rotate;
and the first eccentric drum and the second eccentric drum can be close to the middle drum in the smoke receiving area and separated from the middle drum in the smoke feeding area.
Preferably, the number of the bearing grooves on the first eccentric drum, the second eccentric drum and the intermediate drum is multiple and is distributed along the circumferential direction.
Preferably, the first eccentric drum is connected with the air distribution base through a first eccentric bearing, the second eccentric drum is connected with the air distribution base through a second eccentric bearing, the number of the first eccentric bearings and the number of the second eccentric bearings are at least two, and air paths of the air distribution base are respectively arranged between the adjacent two first eccentric bearings and between the adjacent two second eccentric bearings in a penetrating manner.
Preferably, a plurality of negative pressure suction holes are formed in the first eccentric drum and the second eccentric drum, and a waist circular hole is formed in one side, close to the air distribution seat, of each negative pressure suction hole.
Preferably, the drum further comprises a jaw assembly for transmitting torque, at least one set of the jaw assembly is arranged between the first eccentric drum and the intermediate drum and between the second eccentric drum and the intermediate drum, and the first eccentric drum and the second eccentric drum can respectively depend on the jaw assembly to axially slide relative to the intermediate drum.
Preferably, the jaw assembly includes interior jack catch, outer jack catch and bearing body, the bearing body is installed on the interior jack catch, be equipped with the spout on the outer jack catch, the bearing body can slide in the spout.
Preferably, the transmission device further comprises an outer end cover and an inner end cover, the outer end cover is fixedly arranged on the main transmission shaft, the outer end cover is fixedly connected with the inner end cover, and the inner end cover is circumferentially limited with the first eccentric drum wheel so as to transmit torque to the first eccentric drum wheel.
Preferably, at least one set of jaw assemblies is disposed between the inner end cap and the first eccentric drum.
A micro-distance separating and conveying device for multi-section bars comprises the base bar micro-wheel.
Preferably, the method further comprises the following steps:
an upstream drum for taking each base rod segment and conveying each base rod segment which is not separated to the base rod differential wheel;
the downstream drum wheel is used for acquiring each base rod section separated by the base rod differential wheel;
visual inspection means for monitoring the length of each base rod segment on the downstream drum.
The invention also provides a multi-section bar microspur separation and conveying device which comprises the base rod differential wheel.
The invention provides a base rod differential wheel, comprising: the air distribution seat is used for providing negative pressure; the middle drum wheel is rotatably arranged on the gas distribution seat; the first eccentric drum wheel and the second eccentric drum wheel are both mounted on the gas distribution seat through eccentric bearings, the first eccentric drum wheel and the second eccentric drum wheel are symmetrically arranged relative to the middle drum wheel, and the first eccentric drum wheel and the middle drum wheel and the second eccentric drum wheel and the middle drum wheel are in circumferential limit connection; bearing grooves for adsorbing base rod sections are arranged at corresponding positions of the first eccentric drum wheel, the second eccentric drum wheel and the middle drum wheel, and the gas distribution seat can provide negative pressure for the bearing grooves; the main transmission shaft is used for driving the first eccentric drum wheel to rotate so as to synchronously drive the middle drum wheel and the second eccentric drum wheel to rotate; and the first eccentric drum and the second eccentric drum can be close to the middle drum in the smoke receiving area and separated from the middle drum in the smoke feeding area. According to the base rod differential wheel provided by the invention, the first eccentric drum and the second eccentric drum are close to and separated from the middle drum, so that the base rod sections are separated in the process of rotating from the cigarette receiving area to the cigarette feeding area.
In a preferred embodiment, the drum further comprises a jaw assembly for transmitting torque, at least one set of the jaw assembly is disposed between the first eccentric drum and the intermediate drum and between the second eccentric drum and the intermediate drum, and the first eccentric drum and the second eccentric drum are axially slidable relative to the intermediate drum by means of the jaw assembly, respectively. By means of the arrangement, the first eccentric drum and the second eccentric drum can synchronously rotate in the circumferential direction with the middle drum to convey materials, and can do axial reciprocating deflection motion relative to the middle drum, so that the purpose of differentiating each base rod section is achieved, the length of each base rod section can be accurately detected, and the detection precision is improved.
The multi-section bar microspur separating and conveying device provided by the invention is provided with the base rod differential wheel, and the base rod differential wheel has the technical effect, so the multi-section bar microspur separating and conveying device provided with the base rod differential wheel also has the corresponding technical effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a multi-segment bar microspur separating and conveying device provided by the present invention;
FIG. 2 is a schematic structural view of one embodiment of a base rod differentiating wheel provided in the present invention;
FIG. 3 is a schematic view of the jaw assembly;
FIG. 4 is a basic schematic diagram of a base rod micro-wheel mechanism;
FIG. 5 is an internal cross-sectional view of the base rod differentiating wheel;
FIG. 6 is a cross-sectional view of the location of the bearings and jaw assemblies of the base rod differential wheel;
FIG. 7 is a schematic view of the structure of the first eccentric drum or the second eccentric drum;
FIG. 8 is a schematic view of the construction of the intermediate drum;
FIG. 9 is a schematic view of a negative pressure control cross section of the first or second eccentric drum;
FIG. 10 is a schematic of an intermediate drum negative pressure control cross-section;
FIG. 11 is a schematic cross-sectional view of a cleaning gas path of a base rod micro-wheel;
wherein: 1, a main transmission shaft; 2 a main bearing seat; 3, outer end covers; 4, a gas distribution seat; 5, inner end covers; 6, sealing rings; 7 a first eccentric drum; 8 a second eccentric drum; 9 an intermediate drum; 10 a first bearing seat; 11 a middle bearing seat; 12 a second bearing block; 13 a first eccentric bearing; 14 an intermediate bearing; 15 a second eccentric bearing; 16 a first jaw assembly; 16-1 a first inner jaw; 16-2 a first outer jaw; 16-3 a first bearing body; 17 a second jaw assembly; 18 a first eccentric rolling bearing; 19 an intermediate rolling bearing; 20 a second eccentric rolling bearing; 21 waist round hole; 22 middle negative pressure air hole; 23, connecting a smoke negative pressure control edge with an eccentric drum; 24, the eccentric drum wheel supplies smoke negative pressure to control the edge; 25 the middle drum wheel is connected with a smoke negative pressure control edge; 26 the middle drum wheel controls the edge for negative pressure of smoke; 27 base rod segments; 28 high velocity positive pressure gas flow path; 29 a third jaw assembly; a an upstream drum; b, a base rod differential wheel; c a downstream drum; d visual inspection of the component.
Detailed Description
The core of the invention is to provide a base rod differential wheel which has low manufacturing cost, good differential effect and convenient operation. Another core of the invention is to provide a multi-section bar microspur separating and conveying device comprising the base rod differential wheel.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, fig. 1 is a schematic structural diagram of an embodiment of a multi-segment bar microspur separating and conveying device provided by the present invention; FIG. 2 is a schematic structural view of one embodiment of a base rod differentiating wheel provided in the present invention; FIG. 3 is a schematic view of the jaw assembly; FIG. 4 is a basic schematic diagram of a base bar micro-differential wheel mechanism; FIG. 5 is an internal cross-sectional view of the base rod differential wheel; FIG. 6 is a cross-sectional view of the location of the bearings and jaw assemblies of the base bar differential wheel; FIG. 7 is a schematic view of the construction of the first eccentric drum or the second eccentric drum; FIG. 8 is a schematic view of the construction of the intermediate drum; FIG. 9 is a schematic view of a negative pressure control cross section of the first or second eccentric drum; FIG. 10 is a schematic of an intermediate drum negative pressure control cross-section; FIG. 11 is a schematic cross-sectional view of a cleaning gas path of a base rod micro wheel.
In this embodiment, the base rod differentiating wheel b includes:
the gas distribution seat 4 is used for providing negative pressure; the gas distribution base 4 also serves as a support body;
the middle drum wheel 9, the middle drum wheel 9 is rotatably mounted on the gas distribution seat 4; specifically, the middle drum 9 is connected with the air distribution seat 4 through a middle bearing 14, and the middle bearing 14 is installed on the air distribution seat 4 through a middle bearing seat 15;
the gas distribution device comprises a first eccentric drum 7 and a second eccentric drum 8, wherein the first eccentric drum 7 and the second eccentric drum 8 are both arranged on a gas distribution seat 4 through eccentric bearings, the first eccentric drum 7 and the second eccentric drum 8 are symmetrically arranged relative to a middle drum 9, and the first eccentric drum 7 and the middle drum 9 and the second eccentric drum 8 and the middle drum 9 are in circumferential limiting connection; specifically, the first eccentric drum 7 is used for driving the intermediate drum 9 to rotate, and the intermediate drum 9 is used for driving the second eccentric drum 8 to rotate; specifically, the first eccentric drum 7 is connected with the valve seat 4 through a first eccentric bearing 13, the second eccentric drum 8 is connected with the valve seat 4 through a second eccentric bearing 15, and the deflection directions of the first eccentric bearing 13 and the second eccentric drum 8 are opposite, so that the first eccentric drum 7 and the second eccentric drum 8 swing towards a direction close to the middle drum 9 or swing towards a direction far away from the middle drum 9 at the same time; specifically, a first eccentric bearing 13 is installed on a first bearing seat 10, a second eccentric bearing 15 is installed on a second bearing seat 12, bearing grooves for adsorbing the base rod sections 27 are arranged at corresponding positions of a first eccentric drum 7, a second eccentric drum 8 and an intermediate drum 9, and the gas distribution seat 4 can provide negative pressure for the bearing grooves;
the main transmission shaft 1 is used for driving the first eccentric drum wheel 7 to rotate so as to synchronously drive the middle drum wheel 9 and the second eccentric drum wheel 8 to rotate; specifically, a main transmission shaft 1 is mounted on a main bearing seat 2;
and the first eccentric drum 7 and the second eccentric drum 8 can be close to the middle drum 9 in the smoke receiving area and separated from the middle drum 9 in the smoke feeding area, thereby realizing the purpose of differentiating each base rod section 27.
The base rod differential wheel b provided by the invention realizes the separation of each base rod section 27 in the process of rotating from the cigarette receiving area to the cigarette feeding area by utilizing the closing and the separation of the first eccentric drum 7 and the second eccentric drum 8 relative to the middle drum 9, and the device can realize the differential of each base rod section 27, is convenient to operate and has high transmission efficiency.
In some embodiments, the number of the bearing slots on the first eccentric drum 7, the second eccentric drum 8 and the intermediate drum 9 is multiple and distributed along the circumferential direction. In particular, the bearing grooves on the first eccentric drum 7, the second eccentric drum 8 and the intermediate drum 9 are arranged in a straight line, that is, the bearing grooves on the first eccentric drum 7, the second eccentric drum 8 and the intermediate drum 9 are in the same extension direction, so as to receive and present the base rod segments. Above-mentioned setting through setting up a plurality of bearing grooves, can realize the separation and the transportation of continuous multiunit base rod section, realizes continuity of operation, raises the efficiency. Of course, the number and positions of the bearing grooves on the upstream drum a and the downstream drum c should correspond one-to-one to the number and positions of the bearing grooves on the base rod differentiating wheel b, as shown in fig. 1.
In some embodiments, the first eccentric drum 7 is connected with the valve seat 4 through a first eccentric bearing 13, the second eccentric drum 8 is connected with the valve seat 4 through a second eccentric bearing 15, the number of the first eccentric bearings 13 and the number of the second eccentric bearings 15 are at least two, and the air passages of the valve seat 4 respectively penetrate between two adjacent first eccentric bearings 13 and between two adjacent second eccentric bearings 15. Specifically, as shown in fig. 5, the negative pressure paths of the first eccentric drum 7 and the second eccentric drum 8 pass through a corner when reaching the eccentric drum terminal adsorption groove from the window of the air distribution block 4, while the negative pressure path of the middle drum 9 is straight and shorter in length. The reason why the negative pressure path of the first and second eccentric drums 7 and 8, i.e., the both-side eccentric drums, requires a corner is that: the power transmission form of the first eccentric drum 7 and the second eccentric drum 8 is bearing clamping jaws, namely, power transmission is carried out by means of clamping jaw assemblies, the positions of the first clamping jaw assembly and the second clamping jaw assembly 17 are shown in fig. 6, the mechanical structure of the first clamping jaw assembly and the second clamping jaw assembly 17 needs to occupy the internal space, in addition, according to the requirement of a base rod compounding process, the base rod sections 27 on two sides of the base rod differentiating wheel b are single lengths which are already subjected to final cutting, and the range is 8mm-20mm, so that the negative pressure suction path of the base rod sections 27 on two sides has to bypass the rolling bearings of the eccentric drums, namely, the first eccentric rolling bearing 18 and the second eccentric rolling bearing 20, and the positions of the first eccentric rolling bearing 18 and the second eccentric rolling bearing 20 are shown in fig. 6, and the middle rolling bearing 19 has no influence. This causes the upstream drum a, adjacent to the base rod differentiating wheel b, to receive the cigarettes and the downstream drum c to deliver them, in two distinct positions, in which the negative pressure of the eccentric drums on both sides is not synchronised, as compared with the intermediate drum 9.
In some embodiments, the first eccentric drum 7 and the second eccentric drum 8 are provided with a plurality of negative pressure suction holes, and one side of the negative pressure suction holes close to the gas distribution base 4 is provided with a waist-round hole 21. The waist round hole 21 is adopted, so that the air distribution range of the negative pressure suction hole in the circumferential direction is larger than that of a common round hole, the connection of the negative pressure is advanced, and the corresponding disconnection of the negative pressure is delayed. That is, in order to reduce the influence of the difference in the negative pressure path on the cigarette transfer synchronism, the 24 negative pressure suction holes of the eccentric drums on both sides are formed with waist-shaped holes 21 having a certain depth and size on the side adjacent to the air valve seat 4, as shown in fig. 7. Therefore, a certain negative pressure switch-on advance is given in the smoke receiving stage, and a certain negative pressure switch-off delay is given in the smoke giving stage.
In addition, the control edges of the negative pressure window of the eccentric drum gas distribution seat 4, namely the eccentric drum smoke receiving negative pressure control edge 23 and the eccentric drum smoke supply negative pressure control edge 24, are responsible for switching on and switching off negative pressure airflow, through the transition of the control edges, a middle-cut flow connection is formed between the negative pressure area channel groove of the conveying device and a negative pressure pipeline, and meanwhile, the waist round hole 21 has the functions of advancing and delaying the negative pressure switching on and off. And, the middle negative pressure air holes 22 of the middle drum 9 are circular holes with the diameter of 5mm which are uniformly distributed, as shown in fig. 8, the on-off time of the negative pressure is only related to the control edge of the negative pressure window of the air distribution seat 4, namely the smoke negative pressure control edge 25 of the middle drum 9 and the smoke negative pressure control edge 26 of the middle drum 9.
In some embodiments, further comprising jaw assemblies for transmitting torque, at least one set of jaw assemblies is provided between the first eccentric drum 7 and the intermediate drum 9 and between the second eccentric drum 8 and the intermediate drum 9, and the first eccentric drum 7 and the second eccentric drum 8 are axially slidable relative to the intermediate drum 9 by means of the jaw assemblies, respectively. Through the arrangement, the first eccentric drum 7 and the second eccentric drum 8 can synchronously rotate with the middle drum 9 in the circumferential direction to convey materials, and can do axial reciprocating deflection motion relative to the middle drum 9, so that the purpose of differentiating each base rod section 27 is achieved, the length of each base rod section 27 can be detected more accurately, and the detection precision is improved.
In some embodiments, the jaw assembly comprises an inner jaw, an outer jaw, and a bearing body, the bearing body is mounted on the inner jaw, the outer jaw is provided with a sliding slot, and the bearing body can slide in the sliding slot; the bearing body slides in the sliding groove to realize the approach and the cheapness of the inner clamping jaw and the outer clamping jaw, and meanwhile, the bearing body and the sliding groove are limited in the rotating direction of the middle drum wheel 9, so that the torque can be conveniently transmitted.
Specifically, the jaw assemblies comprise a first jaw assembly and a second jaw assembly 17, the first jaw assembly is installed between the first eccentric drum 7 and the intermediate drum 9, and the second jaw assembly 17 is installed between the second eccentric drum 8 and the intermediate drum 9; the first jaw assembly comprises a first inner jaw 16-1, a first outer jaw 16-2 and a first bearing body 16-3, the first bearing body 16-3 is arranged on the first inner jaw 16-1, the first outer jaw 16-2 is provided with a sliding groove, and the first bearing body 16-3 can slide in the sliding groove; the first inner jaw 16-1 is installed on the first eccentric drum 7, the first outer jaw 16-2 is installed on the middle drum 9, the first eccentric drum 7 can shift relative to the middle drum 9 in the process that the first eccentric drum 7 and the middle drum 9 rotate relative to the gas distribution seat 4, and the first bearing body 16-3 can slide in a sliding groove of the first outer jaw 16-2 in the shifting process, so that the first eccentric drum 7 and the middle drum 9 can synchronously rotate in the circumferential direction to convey materials, and can do reciprocating swing motion relative to the middle drum 9 in the axial direction.
Similarly, the second jaw assembly 17 includes a second inner jaw, a second outer jaw and a second bearing body, the second bearing body is mounted on the second inner jaw, the second outer jaw is provided with a sliding slot, and the second bearing body can slide in the sliding slot; the second inner clamping jaw is arranged on the second eccentric drum wheel 8, the second outer clamping jaw is arranged on the middle drum wheel 9, in the rotating process of the second eccentric drum wheel 8 and the middle drum wheel 9 relative to the gas distribution seat 4, the second eccentric drum wheel 8 can shift relative to the middle drum wheel 9, in the shifting process, the second bearing body can slide in a sliding groove of the second outer clamping jaw, the second eccentric drum wheel 8 and the middle drum wheel 9 can synchronously rotate in the circumferential direction to convey materials, and meanwhile, the second outer clamping jaw can do axial reciprocating deflection motion relative to the middle drum wheel 9.
In some embodiments, the transmission device further comprises an outer end cap 3 and an inner end cap 5, the outer end cap 3 is fixedly arranged on the main transmission shaft 1, the outer end cap 3 is fixedly connected with the inner end cap 5, and the inner end cap 5 is circumferentially limited with the first eccentric drum 7 to transmit torque to the first eccentric drum 7, so as to drive the synchronous rotation of the intermediate drum 9 and the second eccentric drum 8. Specifically, the outer peripheral portion of the inner end cap 5 is further provided with a sealing ring 6, and the sealing ring 6 is connected between the inner end cap 5 and the first eccentric drum 7 to play a role in sealing.
In some embodiments, at least one set of jaw assemblies is provided between the inner end cap 5 and the first eccentric drum 7. Specifically, the jaw assembly further comprises a third jaw assembly 29, the third jaw assembly 29 comprises a third inner jaw, a third outer jaw and a third bearing body, the third bearing body is mounted on the third inner jaw, the third outer jaw is provided with a sliding groove, and the third bearing body can slide in the sliding groove; the third inner jaw is arranged on the first eccentric drum 7, the third outer jaw is arranged on the inner end cover 5, the first eccentric drum 7 can shift relative to the inner end cover 5 in the process that the first eccentric drum 7 rotates relative to the gas distribution seat 4, and the third bearing body can slide in a sliding groove of the third outer jaw in the shifting process, so that interference is avoided.
In some embodiments, the eccentricity angle of the eccentric bearing is obtained by equation 1:
X＝sinα×L 1
wherein: x denotes a preset separation distance between the base rod segments 27 at both sides and the base rod segment 27 in the middle; l denotes the diameter of the first eccentric drum 7 or the second eccentric drum 8.
Further, as shown in fig. 4, the base rod segments 27 are simplified into 3 segments, the base rod differential wheel b is used to separate and pull apart the base rod segments 27 at two sides from the base rod segment in the middle by a certain distance X, the imaginary axes at two sides in fig. 4 refer to the rotating axis of the eccentric drum, the imaginary axis in the middle refers to the rotating axis of the middle drum 9, and the included angle between the two axes is the eccentric angle α. L is the diameter of the eccentric drum wheel on both sides, Y is the distance from the central plane of the drum wheel when the tail end positions of the base rod sections 27 on both sides are positioned, Z is the distance from the central plane of the drum wheel when the initial positions of the base rod sections 27 on both sides are positioned, and the calculation can be known according to the geometric principle: the movement distance X = sin α × L, X = Y-Z.
For example: knowing that the base rod differentiating wheel b has a pitch of 12 pi and a number of slots of 24, the resulting drum pitch diameter =12 × 24=288= the diameter L of the eccentric drum, the design eccentric angle α =0.5 °, and the calculated movement distance X = sin0.5 × 288 ≈ 2.5. Namely, when the designed eccentric angle is 0.5 degrees, the separation distance X of the base rods on the two sides is about 2.5mm, thereby meeting the design purpose.
In some embodiments, the base rod differentiating wheel b cleaning gas path is shown in fig. 11 as a high speed positive pressure gas stream flow path 28, and the compressed air is ejected through the pinholes of the gas distribution base 4 to clean the bearing grooves and the corresponding negative pressure suction gas path cavities, as per conventional thinking.
Besides the base rod differential wheel b, the invention also provides a multi-segment bar microspur separating and conveying device comprising the base rod differential wheel b.
In some embodiments, the multi-segment bar stock macro separation and conveyance device further comprises:
an upstream drum a for taking up each base rod segment 27 and feeding each base rod segment 27 unseparated to the base rod differentiating wheel b;
a downstream drum c for taking each of the base rod segments 27 separated by the base rod differentiating wheel b;
visual inspection means d for monitoring the length of each base rod segment 27 located on the downstream drum c.
In one embodiment, as shown in fig. 1, the base rod differentiating wheel b receives the double length base rod combined bar from the upstream drum a, and the base rod segments 27 of the base rod combined bar can move in a short distance along the longitudinal axis direction while being transferred along the transverse axis direction, and then be delivered to the downstream drum c, i.e. the carrying groove of the upstream drum a, to which the unseparated base rod segments 27 are attached, and the carrying groove of the downstream drum c to which the separated base rod segments 27 are attached. And the visual detection part d carries out online photographing detection on the base rod combined material of the downstream drum wheel c to obtain the length parameter of the bar stock of each base rod section 27. The reason why the base rod segments 27 need to be moved a short distance in the longitudinal direction is that: the outer wrapper of each base rod segment 27 making up each sequence is generally the same for each sequence of base rod combinations. The visual inspection means d measures the lengths of the respective base rod segments 27 constituting the sequence based on the photographed images of the outer wrapping paper surfaces of the respective base rod segments 27. If the end surfaces of the different types of base rod sections 27 are in contact with each other and the same circumferential wrapping paper is used, the shot images cannot distinguish whether the base rod combination is one section or multiple sections, and further cannot measure and calculate the length of each section. Therefore, it is required to maintain a certain gap between the end surfaces of the respective base rod segments 27 constituting the sequence to improve the detection accuracy.
The base rod differential wheel b comprises a first eccentric drum 7, a second eccentric drum 8 and an intermediate drum 9, the three drums respectively and independently convey the carried base rod sections 27, wherein the first eccentric drum 7 and the second eccentric drum 8 are synthesized by circumferential rotation and axial deflection motion when working, and the intermediate drum 9 only performs circumferential rotation to convey base rod materials. The base rod differential wheel b is directly driven by a servo motor, torque is transitionally transferred among the three drums through a jaw assembly structure, the jaw assembly structure is shown in figure 3, in the jaw assembly structure, an outer jaw is connected with the middle drum 9, an inner jaw is connected with the eccentric drum, and a bearing body of the inner jaw can swing in a reciprocating mode in an outer jaw slide way.
Further, as shown in fig. 5, the power transmission of the base rod differential wheel b is that a servo motor is connected with one end of a main transmission shaft 1, the other end of the main transmission shaft 1 is connected with an outer end cover 3, the outer end cover 3 is connected with an inner end cover 5, an inner clamping jaw with a bearing body is assembled on the inner end cover 5, an outer clamping jaw matched with the inner clamping jaw is assembled on a first eccentric drum 7, and so on, the other two sets of clamping jaw assemblies finally transmit the torque from the first eccentric drum 7 to an intermediate drum 9, and transmit the torque from the intermediate drum 9 to the first eccentric drum 7. Namely, the three structures of the first jaw assembly, the second jaw assembly 17 and the third jaw assembly 29 shown in fig. 5 can effectively ensure that the two side eccentric drums and the middle drum 9 synchronously rotate circumferentially to convey materials, and can also do reciprocating swing motion relative to the middle drum 9 in the axial direction.
For the structure of other parts of the multi-segment bar microspur separating and conveying device, reference is made to the prior art, and details are not repeated herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The base rod differentiating wheel provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A base rod differentiating wheel, comprising:
the gas distribution seat (4) is used for providing negative pressure;
the middle drum wheel (9), the middle drum wheel (9) is rotatably arranged on the gas distribution seat (4);
the gas distribution device comprises a first eccentric drum wheel (7) and a second eccentric drum wheel (8), wherein the first eccentric drum wheel (7) and the second eccentric drum wheel (8) are both mounted on a gas distribution base (4) through eccentric bearings, the first eccentric drum wheel (7) and the second eccentric drum wheel (8) are symmetrically arranged relative to an intermediate drum wheel (9), and the first eccentric drum wheel (7) is in circumferential limit connection with the intermediate drum wheel (9) and the second eccentric drum wheel (8) is in circumferential limit connection with the intermediate drum wheel (9); bearing grooves for adsorbing base rod sections (27) are formed in corresponding positions of the first eccentric drum (7), the second eccentric drum (8) and the middle drum (9), and the air distribution seat (4) can provide negative pressure for the bearing grooves;
the main transmission shaft (1) is used for driving the first eccentric drum wheel (7) to rotate so as to synchronously drive the middle drum wheel (9) and the second eccentric drum wheel (8) to rotate;
and the first eccentric drum wheel (7) and the second eccentric drum wheel (8) can be close to the middle drum wheel (9) in the smoke receiving area and separated from the middle drum wheel (9) in the smoke feeding area.
2. A rod differentiating wheel according to claim 1, characterized in that said first eccentric drum (7), said second eccentric drum (8) and said intermediate drum (9) have a plurality of said load-bearing slots distributed in circumferential direction.
3. A base rod differentiating wheel according to claim 1, characterized in that said first eccentric drum (7) is connected with said gas distribution seat (4) by a first eccentric bearing (13), said second eccentric drum (8) is connected with said gas distribution seat (4) by a second eccentric bearing (15), and the number of said first eccentric bearings (13) and said second eccentric bearings (15) is at least two, the gas passage of said gas distribution seat (4) is respectively penetrated between two adjacent said first eccentric bearings (13) and between two adjacent said second eccentric bearings (15).
4. A base rod differential wheel according to claim 3, characterized in that a plurality of negative pressure suction holes are arranged in the first eccentric drum (7) and the second eccentric drum (8), and a waist circular hole (21) is arranged at one side of the negative pressure suction holes close to the gas distribution base (4).
5. A base rod differentiating wheel according to any one of claims 1 to 4, characterized in that it further comprises a jaw assembly for transmitting torque, at least one set of said jaw assemblies being provided both between said first eccentric drum (7) and said intermediate drum (9) and between said second eccentric drum (8) and said intermediate drum (9), and said first eccentric drum (7) and said second eccentric drum (8) being axially slidable with respect to said intermediate drum (9) by means of said jaw assemblies, respectively.
6. The base rod differential wheel according to claim 5, wherein the jaw assembly comprises an inner jaw, an outer jaw, and a bearing body, the bearing body being mounted on the inner jaw, the outer jaw having a slide slot therein, the bearing body being slidable in the slide slot.
7. The base rod differential wheel according to claim 5, further comprising an outer end cap (3) and an inner end cap (5), wherein the outer end cap (3) is fixedly arranged on the main transmission shaft (1), the outer end cap (3) is fixedly connected with the inner end cap (5), and the inner end cap (5) is circumferentially limited with the first eccentric drum (7) to transmit torque to the first eccentric drum (7).
8. A base rod differentiating wheel according to claim 7, characterized in that at least one set of said jaw assemblies is provided between said inner end cap (5) and said first eccentric drum (7).
9. A micro-separation and transfer device for multi-sectional bars, comprising a base rod differentiating wheel (b), characterized in that said base rod differentiating wheel (b) is a base rod differentiating wheel (b) according to any one of claims 1 to 8.
10. The apparatus for macro separation and transfer of multiple lengths of bar stock as defined in claim 9, further comprising:
an upstream drum (a) for taking up the individual base rod segments (27) and feeding the individual base rod segments (27) unseparated to the base rod differentiating wheel (b);
a downstream drum (c) for taking up each of the base rod segments (27) separated by said base rod differentiating wheel (b);
visual inspection means (d) for monitoring the length of each base rod segment (27) located on the downstream drum (c).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211095995.5A CN115606839B (en) | 2022-09-08 | 2022-09-08 | Multi-section bar micro-distance separating and conveying device and base bar micro-wheel thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211095995.5A CN115606839B (en) | 2022-09-08 | 2022-09-08 | Multi-section bar micro-distance separating and conveying device and base bar micro-wheel thereof |
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| CN115606839A true CN115606839A (en) | 2023-01-17 |
| CN115606839B CN115606839B (en) | 2024-01-19 |
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| CN202211095995.5A Active CN115606839B (en) | 2022-09-08 | 2022-09-08 | Multi-section bar micro-distance separating and conveying device and base bar micro-wheel thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117179368A (en) * | 2023-10-20 | 2023-12-08 | 湖北中烟工业有限责任公司 | A wheeled conveyor mechanism |
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| US3343647A (en) * | 1965-07-19 | 1967-09-26 | Molins Machine Co Ltd | Cigarette conveying and aligning apparatus |
| WO2012168919A1 (en) * | 2011-06-08 | 2012-12-13 | G.D Societa' Per Azioni | Method and filter assembly machine for producing filter-tipped cigarettes |
| CN108991594A (en) * | 2018-10-10 | 2018-12-14 | 湖北中烟工业有限责任公司 | A kind of PROTOS-70 cigarette draws close device |
| EP3984382A2 (en) * | 2020-10-12 | 2022-04-20 | G.D Societa' Per Azioni | Method to control a feeding unit to feed components for smoking articles and conveyor drum of a feeding unit to feed components for smoking articles |
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| CN115606839B (en) | 2024-01-19 |
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Inventor after: Han Long Inventor after: Liao Maozheng Inventor after: Li Xiaoping Inventor after: Guo Mingqiang Inventor after: Shi Jinsong Inventor before: Han Long Inventor before: Liao Maozheng Inventor before: Li Xiaoping Inventor before: Guo Mingqiang |