CN114568733A

CN114568733A - High-efficiency stem and leaf separating device

Info

Publication number: CN114568733A
Application number: CN202210328580.1A
Authority: CN
Inventors: 刘�文; 鲁勇; 田晓生; 王爽; 胡峻闻; 华荣; 邢丽
Original assignee: Hongta Tobacco Group Co Ltd
Current assignee: Hongta Tobacco Group Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-06-03
Anticipated expiration: 2042-03-30
Also published as: CN114568733B

Abstract

The invention relates to the technical field of tobacco leaf threshing, in particular to a high-efficiency stem leaf sorting device which comprises a clamping and conveying mechanism, a sorting cutter group, a spraying pipe group and a collecting device. The clamping and conveying mechanism comprises two parallel annular conveying belts which rotate reversely at the same speed, and a clamping gap is formed between adjacent sides of the two annular conveying belts and used for clamping the base end heads of the tobacco leaves and conveying the tobacco leaves. The rejecting cutter group is arranged below the crack of the clamping and conveying mechanism and is sequentially arranged along the conveying direction. The nozzle group includes a first nozzle, a second nozzle, and a third nozzle arranged in order in the conveying direction. The first spray pipe is arranged below the inlet end of the clamping and conveying mechanism and used for cleaning dust and impurities on the surface of the tobacco leaves and blowing away the folded leaves; the second spray pipe is arranged in front of the first sorting cutter and used for blowing and spreading the tobacco leaves on the first sorting cutter; the third spray pipe is arranged in front of the second sorting cutter and used for blowing and spreading the tobacco leaves on the second sorting cutter; the collecting device is arranged below the clamping and conveying mechanism.

Description

High-efficiency stem and leaf separating device

Technical Field

The invention relates to the technical field of tobacco leaf threshing, in particular to a high-efficiency stem and leaf removing device.

Background

The threshing process is used as a core process of threshing and redrying, stems and leaves of the tobacco leaves need to be separated, and then the leaves are separated by air separation and enter the next process; however, the single-line threshing machine is composed of 4 or 5 threshing machines, the crushing rate of tobacco leaves is increased after the tobacco leaves are threshed for multiple times, and meanwhile, the energy consumption is large, and the single-line threshing machine does not accord with the development trend of increasing the fragment yield by soft threshing.

In view of the above problems, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.

Disclosure of Invention

In order to solve the technical problems, the invention provides a stem and leaf sorting device which has high efficiency, low energy consumption and higher leaf discharging efficiency compared with the traditional threshing machine.

The technical scheme adopted by the invention is as follows:

the high-efficiency stem leaf picking and separating device is characterized by comprising a clamping and conveying mechanism, a picking and separating cutter group, a spraying pipe group and a collecting device;

the clamping and conveying mechanism comprises two parallel annular conveying belts which rotate reversely at the same speed, and a clamping gap is formed between adjacent sides of the two annular conveying belts and used for clamping the leaf base end of the tobacco leaves and conveying the tobacco leaves;

the sorting tool group comprises a first sorting tool and a second sorting tool, is arranged below a crack of the clamping and conveying mechanism, and is sequentially arranged along the conveying direction;

the spray pipe group comprises a first spray pipe, a second spray pipe and a third spray pipe which are sequentially arranged along the conveying direction, and gas nozzles are respectively arranged on the three spray pipes; the first spray pipe is arranged below the inlet end of the clamping and conveying mechanism and used for cleaning dust and impurities on the surface of the tobacco leaves and blowing away the folded leaves; the second spray pipe is arranged in front of the first sorting cutter and used for blowing and spreading the tobacco leaves on the first sorting cutter; the third spray pipe is arranged in front of the second sorting cutter and used for blowing and spreading the tobacco leaves on the second sorting cutter;

the collecting device is arranged below the clamping and conveying mechanism.

Further, first, second pick branch cutter all includes the circular blade disc of rotation work, the pivot perpendicular to tobacco leaf direction of delivery horizontal arrangement of circular blade disc, tobacco leaf direction of delivery is from left to right, circular blade disc anticlockwise rotation, a plurality of tool bits are evenly installed to circular blade disc outer peripheral face.

Furthermore, the number of the cutter heads on the first sorting cutter is smaller than that of the cutter heads on the second sorting cutter.

Further, each cutter head comprises two V-shaped blades, and a V-shaped cutter gap is formed along the conveying direction and is positioned right below the gap.

Further, the tip of tool bit is colluded the form, when the tool bit was located circular blade disc's top, it colluded point and blade orientation left side.

Further, the corresponding conveyor belt sections at the seams are tensioned by a multi-stage tensioning wheel.

Furthermore, the number of the first spray pipes, the number of the second spray pipes and the number of the third spray pipes are two, and the first spray pipes, the second spray pipes and the third spray pipes are symmetrically arranged on two sides of the crack.

Further, the material collecting device comprises a first material collecting device, a second material collecting device, a third material collecting device and a fourth material collecting device which are sequentially arranged along the conveying direction, the second material collecting device is located below the cutting position of the first sorting cutter, and the third material collecting device is located below the cutting position of the second sorting cutter.

Furthermore, the first material collecting device, the second material collecting device, the third material collecting device and the fourth material collecting device are sequentially butted, unpowered rollers are arranged at the butted part of the first material collecting device and the second material collecting device and the butted part of the second material collecting device and the third material collecting device, and inclined blanking plates are arranged on two sides of each roller.

Furthermore, the first material collecting device, the second material collecting device, the third material collecting device and the fourth material collecting device collect dust impurities, large and medium tobacco flakes, small pieces, broken tobacco and tobacco stems in sequence.

Further, an inlet and an outlet of a crack of the clamping and conveying mechanism are both V-shaped.

The stem and leaf picking and separating device provided by the invention can efficiently realize flexible leaf and stem separation through a simple structure, is energy-saving and consumption-reducing, is convenient to maintain, has high sheet yield, and can effectively remove impurities and dust.

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 embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view showing the overall structure of a stem leaf sorting device according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 shows a perspective view of a picking tool according to an embodiment of the present invention;

FIG. 4 shows an exploded view of a picking tool according to an embodiment of the present invention.

Detailed Description

The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, in this embodiment, the stem picking and separating device includes a clamping mechanism, a separating tool set, a spraying tube set and a collecting device, and the clamping mechanism has a structure that: two parallel annular conveyer belts 2 which rotate reversely at the same speed are arranged at the tobacco stalk clamping position of the tobacco leaves 1, the two conveyer belts 2 are used for clamping the base end of the tobacco leaves 1 by working

faces

2c and 2d, non-working faces 2a and 2b are not used for clamping the base end of the tobacco leaves, and a crack is formed between the working

faces

2c and 2d and used for clamping the base end of the tobacco leaves and conveying the tobacco leaves. The two conveying belts are tensioned by the tensioning wheels and are driven at the same time, and the working surfaces of the conveying belts are provided with multistage tensioning wheels 3 to clamp the tobacco bases in the whole working process, so that the tobacco leaves are prevented from falling off. Two conveyor belts at the inlet and the outlet of the clamping and conveying mechanism present V shapes, so that the clamping of the blade base is facilitated. A group of first spray pipes 4 are arranged at the inlet, the upper ends of the first spray pipes 4 are spray nozzles 5, and a first material collecting device 6 is arranged below the first spray pipes 4. Along with the moving direction of the tobacco leaves 1, a group of second spray pipes 7 are arranged, and the upper ends of the second spray pipes 7 are provided with nozzles 8. And a first sorting cutter 9 is arranged in the conveying direction of the tobacco leaves 1, a rotating shaft 10 is arranged in the middle of the first sorting cutter 9, 4 cutter heads 11 are arranged on the outer ring of the sorting cutter 9, the cutter heads 11 are arranged on a cutter holder 12, and a second material collecting device 13 is arranged below the cutter heads 11. A group of third spray pipes 15 are arranged in the moving direction of the tobacco leaves 14 (the tobacco leaves after being sorted by the first sorting cutter), a spray nozzle 16 is arranged at the upper end of each third spray pipe 15, a second sorting cutter 17 is arranged behind each third spray pipe 15, a rotating shaft 18 is arranged in the middle of each second sorting cutter 17, and 8 cutter heads 19 are arranged on the outer ring of each second sorting cutter 17; a third material collecting device 20 is arranged below the second sorting cutter 17. A fourth aggregate device 22 is arranged at the crack outlet end of the endless conveyor 2. And unpowered rollers 24 are arranged at the joint of the first material collecting device 6 and the second material collecting device 13 and the joint of the second material collecting device 13 and the third material collecting device 20, and inclined blanking plates 23 are arranged on two sides of each roller 24.

The nozzles 5 of the first spray pipes 4 spray positive pressure compressed air to blow off dust and other impurities of the tobacco leaves 1, and blow open the folded tobacco leaves, so that the tobacco leaves can be conveniently laid and sorted subsequently. Compressed air blown by a nozzle 8 of the second spray pipe 7 blows and spreads the tobacco leaves 1 on the outer ring of the first sorting cutter 9, so that the cutter head 11 can be conveniently clamped into the leaf base stem head; compressed air blown by a nozzle 16 of the third spray pipe 15 blows and spreads the tobacco leaves 14 after being picked on an outer ring of the sorting cutter 17, so that the cutter head 19 can be clamped into the leaf base stem head conveniently.

As shown in fig. 3 and 4, the outer ring of the separating tool has a V-shaped cutting head, the end of the cutting head is a hook for clamping tobacco, the cutting edge is installed at an angle opposite to the tobacco conveying direction, the separating tool is rotated at a direction opposite to the tobacco conveying direction, the V-shaped cutting head is uniformly installed along the circumference, and the cutting head can be fixed by the tool holder 12 by screws or other means for easy removal and replacement, which is not limited herein. The number of the tool bits 11 on the first separating tool 9 is less than that of the tool bits 19 on the second separating tool 17, so that residual tobacco flakes on tobacco stems can be removed at high speed conveniently, and the separating rate is improved. The specific number of the cutter heads on the first sorting cutter 9 and the second sorting cutter 17 is not limited, the rotating speed of the two sorting cutters can be adjusted, and the processing requirements of tobacco leaves of different grades and varieties are met.

The first collecting device 6 is matched with a dust removal device to collect dust and sundries, the second collecting device 13 can be arranged as a conveying belt or other conveying tools due to more blanking, the third collecting device 20 is mainly used for collecting small pieces and broken cigarettes, and the third collecting device 20 can be arranged as a conveying belt according to the actual collecting amount; the fourth collecting device 22 can be set as a conveyer belt to collect the tobacco stems after being picked.

The blanking plates 23 and the rollers 24 are matched for use, and the rollers 24 are unpowered, so that the materials can automatically slide onto the blanking plates 23 on the two sides according to the weight of the materials falling onto the blanking plates, and then correspondingly slide into the material collecting devices on the two sides.

The working process of the stem and leaf removing and separating device is as follows: after the stem of a tobacco leaf 1 is clamped by the working surface 2c of the conveying belt and the working surface 2d of the conveying belt from the feeding hole, compressed air is sprayed out from the nozzle 5 with the first spraying pipe 4 to clean dust and sundries on the surface of the tobacco leaf, meanwhile, the folded leaf is blown open, and the dust and sundries fall into the collecting device 6. The tobacco leaves 1 are sprayed out by the nozzles 5 of the second spray pipes 4 backwards to be blown and spread on the outer ring of the first separating cutter 9, the stem heads of the leaf bases are positioned and clamped, the V-shaped cutter heads 11 rotate in the opposite direction of conveying the tobacco leaves, the separation from the combination parts is easy due to the physical characteristics of the stems and the leaves of the tobacco leaves, and the efficient separation of the stems and the leaves from the top to the bottom of the stem heads of the leaf bases is realized in the tobacco leaf conveying process by the V-shaped separating cutters 11. At the moment, the separated large and medium tobacco flakes are separated; this portion of the tobacco flakes falls into the second collection device 13. The tool bit can be replaced and maintained by detaching the bolt, and the number of the picking tools can be adjusted according to the processing condition. In the process of transporting the tobacco leaves 14 after being picked backwards, as a small number of tobacco leaves are not picked on the tobacco stems, the picking process is repeated, compressed air is sprayed out from a nozzle 16 of a third spray pipe 15 and is blown to be spread on the outer ring of a second picking cutter 17, a V-shaped cutter head can be positioned and clamped on a stem head, and the number of the cutter heads 19 of the picking cutter 17 is larger than that of the cutter heads of a higher-level picking cutter 9, so that the tobacco leaves on the tobacco stems can be conveniently and completely picked. The second sorting tool 17 has adjustable rotating speed and the number of the tool bits 19 can be changed, so that the optimal sheet discharging parameters can be adjusted conveniently according to different grades and variety characteristics. After stem and leaf separation is finished, broken tobacco falls into the third collecting device 20, and the removed tobacco stems 21 are thrown into the fourth collecting device 22 after being continuously conveyed to a discharge port; in order to avoid the situation that the materials are collected at the junction of the two material collecting devices when more materials are discharged, the unpowered roller 24 is arranged at the junction, namely when the materials fall on the roller, which side of the roller is heavy, and which side of the roller is turned, the material discharging plates 23 are arranged at the two sides of the roller, so that the materials slide to the material collecting devices corresponding to the two sides.

The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, and not limiting. The structure, the connection mode and the like of all the components in the invention can be changed, and the equivalent transformation and the improvement on the basis of the technical scheme of the invention are not excluded from the protection scope of the invention.

Claims

1. An efficient stem leaf picking and separating device is characterized by comprising a clamping and conveying mechanism, a picking and separating cutter group, a spraying pipe group and a collecting device;

the collecting device is arranged below the clamping and conveying mechanism.

2. The efficient stem leaf separating device according to claim 1, wherein the first and second separating cutters each comprise a circular cutter head which rotates, a rotating shaft of the circular cutter head is horizontally arranged perpendicular to a tobacco leaf conveying direction, the tobacco leaf conveying direction is from left to right, the circular cutter head rotates anticlockwise, and a plurality of cutter heads are uniformly mounted on the peripheral surface of the circular cutter head.

3. The stem leaf separating device as claimed in claim 2, wherein the number of the bits of the first separating tool is smaller than the number of the bits of the second separating tool.

4. The stem leaf separating device as claimed in claim 2, wherein each cutter head comprises two V-shaped blades, forming a V-shaped cutter gap along the conveying direction, and located right below the gap.

5. The efficient stem leaf separating device according to any one of claims 2 to 4, wherein the end of the cutter head is hook-shaped, and when the cutter head is located above the circular cutter head, the hook tip and the cutting edge face to the left side.

6. The stem leaf picking device as claimed in claim 1, wherein the corresponding conveyor belt segment at the nip is tensioned by a multi-stage tension wheel.

7. The stem leaf separating device as claimed in claim 1, wherein there are two first nozzles, two second nozzles and two third nozzles symmetrically disposed on two sides of the slit.

8. The stem leaf separating device according to claim 1, wherein the collecting device comprises a first collecting device, a second collecting device, a third collecting device and a fourth collecting device, which are sequentially arranged along the conveying direction, the second collecting device is located below the cutting position of the first separating tool, and the third collecting device is located below the cutting position of the second separating tool.

9. The efficient peduncle leaf picking device according to claim 1, wherein the first collecting device, the second collecting device, the third collecting device and the fourth collecting device are sequentially butted, unpowered rollers are arranged at the butted part of the first collecting device and the second collecting device and the butted part of the second collecting device and the third collecting device, and inclined blanking plates are arranged at two sides of each roller.

10. The efficient stem leaf picking device according to claim 1, wherein the first collecting device, the second collecting device, the third collecting device and the fourth collecting device sequentially collect dust impurities, large and medium tobacco flakes, small and broken tobacco and tobacco stems.

11. The stem leaf picking device with high efficiency as claimed in claim 1, wherein the inlet and the outlet of the clamping slot of the clamping and feeding mechanism are both V-shaped.