CN210353120U - Rotary shearing machine and shearing equipment for ultra-long cut tobacco - Google Patents

Abstract

The utility model provides an overlength pipe tobacco rotary shearing machine, shearing equipment. The utility model discloses a rotary shearing machine, which comprises a plurality of rotary cutters for hanging ultra-long tobacco shreds and a fixed cutter matched with the rotary cutters, and can form cutting action and instantly cut off the ultra-long tobacco shreds carried by the rotary cutters; the utility model discloses an overlength pipe tobacco shearing equipment utilizes including vibrating screen extension machine and the foretell rotary shear who is used for the pipe tobacco screening the utility model provides an overlength pipe tobacco shearing equipment carries out the pipe tobacco and cuts, can make the pipe tobacco through the screening, combs the back, cuts overlength pipe tobacco along pipe tobacco extension degree direction. Use the utility model provides a shearing equipment, the pipe tobacco is cut effectual, degree of automation is high, and pipe tobacco shearing equipment is rational in infrastructure, take up an area of fewly.

Description

Rotary shearing machine and shearing equipment for ultra-long cut tobacco

Technical Field

The utility model belongs to the shred technology on the tobacco throwing production line, more specifically say, relate to an overlength pipe tobacco rotary shearing machine, shearing equipment.

Background

The structure of the cut tobacco is one of important factors influencing the quality of cigarettes, the so-called structure of the cut tobacco mainly refers to the proportion of the cut tobacco with different lengths in mass, and the filling force of the cut tobacco in a certain range is improved along with the increase of the length of the cut tobacco. However, the longer the tobacco shred is, the better the tobacco shred is, the longer the tobacco shred is, the agglomeration is easy to be, the loosening is not suitable, the filling force is reduced on the contrary, and the loose and loose bamboo joint hollow-end cigarette is often generated in the rolling process, so that the outage rate is improved, and the main process quality indexes (the single weight of the cigarette, the single weight standard deviation, the suction resistance standard deviation, the hardness, the end part filament dropping amount, the cigarette circumference and the like) and the stability of the cigarette are all influenced to a certain extent. Liqiong et al (Liqiong, Song Shi Qiang. Equipment management and maintenance [ J ].2017 (7): 108-09) have pointed out in research that optimizing the tobacco shred length distribution uniformity in the cigarette production process has important significance for the subsequent production process of cigarettes and the quality of cigarette products.

The ultra-long cut tobacco is one of the difficult problems troubling cigarette product quality of cigarette enterprises, the ultra-long cut tobacco is cut off on line in the production process of the cut tobacco, the length of the cut tobacco is controlled to be in a reasonable range, and the mixing of the cut tobacco and various cut tobacco can be met, so that higher filling power is obtained, the cost is saved, the problems of high stopping rate and the like caused by uneven tightness generated in the rolling process due to the overlong cut tobacco can be greatly reduced. In recent years, in order to solve the problem of the filament of the cut tobacco, a plurality of innovative technologies are generated in the industry. For example, the chinese invention patent, publication No.: CN 103844345 a, published: 2014.06.11, discloses a fixed-length shredding blade of a shredding machine, which can cut tobacco leaves into tobacco shreds with specified lengths, and the invention solves the functional defects of the traditional shredding blade (the tobacco shreds can only be fixed in width and can not be fixed in length). It can be widely applied to various types of filament cutter equipment.

Hua gang, wuwei, zhouyi, bin, sun super light machinery [ J ], 2014 (32): 74-77) discloses a novel tobacco shred length limiting device, which comprises a bracket and a group of beating roller sets which are designed in parallel, wherein a plurality of square cutter assemblies are connected on a beating rotary main shaft sleeve in a key connection mode, and the required length limiting effect can be obtained by adjusting the thickness of the gap sleeve of the beating roller and changing the gap between the square cutters, and the practical application effect shows that: the filament rate of the leaf filaments before and after application was reduced by about 7% and the medium filament rate of the leaf filaments was increased by about 4%.

Chinese patent, publication number: CN 104770856 a, published: 2015.07.15, discloses a method and a blade for controlling the length distribution of tobacco shreds, which is to cut tobacco materials into tobacco shreds after the procedures of pretreatment, shredding, collection and the like. The tobacco shreds are cut by a shredding blade capable of controlling the length distribution of the tobacco shreds. The blade consists of a cutting edge for cutting and a non-cutting notch, the cutting edge and the notch are alternately arranged, the blade is a blade with the same structure as A and a blade with the same structure as B, and the cutting edge of the blade A corresponds to the notch of the blade B. The invention can cut tobacco raw materials into tobacco shreds with the same width and the length distribution ratio suitable for the cigarette rolling requirement, increase the filling capacity of the tobacco shreds in cigarettes and reduce the usage amount of the tobacco shreds in the cigarettes, but the structural design of the blade is relatively complex.

In addition, a small threshing air separation bypass line is additionally arranged at a tobacco processing line blade manufacturing processing section of a cigarette enterprise, the selected ultra-large blades are threshed again to form small and medium-sized tobacco sheets, the occupied area of equipment is large, noise is large, dust is more, and the clean production environment of a tobacco processing workshop is influenced.

Although the above various technical solutions can reduce the filament rate of cut tobacco, there still exist some problems, such as: the structural design of the blade is relatively complex, which is not beneficial to maintenance; compared with the traditional shredding mode, the shredding quantity of a single box is lower in the fixed-length shredding mode, and the leaf consumption of the single box is increased; the thickness of a threshing roller gap sleeve of an upstream threshing and redrying threshing unit is adjusted, and the gap between square knives is changed, so that the required effect can be obtained, but the adjusting process is more complicated, and the breaking of tobacco leaves is larger. Therefore, innovative equipment must be adopted, and the problem of ultra-long cut tobacco is solved by the most convenient equipment.

Disclosure of Invention

1. Problems to be solved

In view of the above problems, one of the objectives of the present invention is to provide a rotary shearing machine for ultra-long tobacco shreds, which has a simple shearing structure, is easy to maintain, and has a good tobacco shred shearing effect; the second purpose of the utility model is to provide an overlength pipe tobacco shearing equipment, solve the inhomogeneous problem of pipe tobacco length distribution in the cigarette production process, can effectively reduce the long filament rate.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical scheme:

the utility model provides a rotary shearing machine for ultra-long tobacco shreds, which comprises a frame and a rotary frame arranged on the frame, wherein the rotary frame is provided with a rotary cutter, and the direction of the cutting edge of the rotary cutter is consistent with the rotating direction of the rotary frame; the fixed cutter corresponding to the rotary cutter is fixedly installed on the rack, the direction of the cutting edge of the fixed cutter is opposite to that of the cutting edge of the rotary cutter, and the rotary cutter and the fixed cutter form a cutting action when rotating along with the rotary frame and passing through the fixed cutter. The rotary cutter twines the input ultra-long cut tobacco in the rotating process, then carries the input ultra-long cut tobacco to the position of the fixed cutter, and the cut tobacco is cut off instantly when passing through the fixed cutter.

In order to improve the shearing efficiency, a better shearing effect is obtained. A plurality of rotary cutters are uniformly arranged along the circumferential direction of the rotary frame, and the top ends of the cutting edges of the rotary cutters are on the same circumferential surface. A plurality of rotary cutters carry the pipe tobacco constantly and pass through fixed cutter, improve the pipe tobacco handling capacity, and the long filament that preceding rotary cutter leaked can be caught by follow-up rotary cutter, realize that the pipe tobacco lasts, high-efficient, even shearing.

In order to facilitate the installation of the rotary cutter, end plates are symmetrically arranged at two ends of the rotary frame. The rotary cutter can be directly detachably fixed on the end plate, for example, two end parts of the rotary cutter are respectively and correspondingly detachably fixed on the end plate; or a plurality of fixing pieces are connected between the two ends of the rotary cutter, the fixing pieces are uniformly distributed on the same circumference, and the rotary cutter is arranged on the fixing pieces (through bolts), so that the rotary cutter is ensured to have enough rigidity, and the maintenance and replacement of the rotary cutter at the later stage are facilitated; furthermore, in order to reduce the friction losses between the fixed cutter and the rotary cutter, the rotary cutter is mounted on the stationary member tangentially to the circumference, and a more efficient shearing movement is established between the two when passing the fixed cutter.

The length of the tobacco shreds is determined by the size of the common leaves, the filling power of the tobacco shreds in a certain range is improved along with the increase of the length of the tobacco shreds, however, the longer the tobacco shreds are, the better the tobacco shreds are, the too long tobacco shreds are easy to agglomerate and are not easy to loosen, the filling power is reduced on the contrary, bamboo joint hollow-end cigarettes with uneven tightness are often generated in the rolling process, and the outage rate is improved. Therefore, the length of the tobacco shreds is controlled in a reasonable interval, the blending of the tobacco shreds with various lengths can be met, the cost is saved, and the quality of cigarettes can be improved.

Based on the above, the utility model provides an ultra-long cut tobacco shearing equipment, which comprises a vibrating screen classifier for screening cut tobacco and the ultra-long cut tobacco rotary shearing machine; and the oversize material discharge end of the vibrating screening machine corresponds to the feed inlet of the ultralong tobacco shred rotary shearing machine. After the medium-short cut tobacco which does not need to be sheared is sieved out by the vibrating screen classifier, the residual filaments are sheared by the ultra-long cut tobacco rotary shearing machine, and the medium-short cut tobacco is prevented from being broken.

In order to ensure the effective shearing of the cut tobacco, the discharge end of the oversize product is provided with a section of cut tobacco carding section, the cut tobacco carding section is provided with a plurality of carding grooves, and the carding grooves extend along the length direction of the discharge end of the oversize product and correspond to the rotary cutters of the ultralong cut tobacco rotary shearing machine; the cut tobacco output from the oversize material discharge end of the vibrating conveyor is thrown into the rotary shearing machine after being combed by the cut tobacco combing section, is hung and received by the rotary cutter passing through the rotation, and is sheared from the fixed cutter.

In order to obtain better carding effect, the cross section of each carding groove is U-shaped or V-shaped along the width direction of the discharge end of the oversize material, and the cross section of the tobacco shred carding section is integrally in a comb shape.

The length of the tobacco shred of the common cigarette (the cigarette has the thickness, the former is called as the common cigarette) is preferably not more than 50mm, and the tobacco shred exceeding 50mm is the super-long tobacco shred. The composition of the cut tobacco in the cigarette comprises long cut tobacco, short cut tobacco, shredded tobacco, cut stems, thin slices, expanded shreds and the like, and in order to reduce the cost of cut tobacco raw materials, the composition of the cut tobacco needs higher filling force, the key points of the cut tobacco raw materials are the blending proportion on one hand and the filling force of the long threads and the action of ties connecting other cut tobacco on the other hand, and the cut tobacco raw materials with the thickness of 30-50 mm are good generally.

Therefore, the specification and the size of the carding groove of the tobacco shred carding section can be adjusted according to requirements (such as the length of a sieve plate or the condition of tobacco shreds to be processed and the like), the aperture of the sieve plate of the vibrating sieving machine is 30-50 mm, and the length of the sieve plate is 1.5-2 m; the longitudinal length of the carding groove is 0.8-1.2 m, the width of the cross section of the carding groove is 30-50 mm, and the vertical depth of the carding groove is 60-100 mm.

The utility model provides an overlength pipe tobacco shearing equipment still includes the conveyer, the conveyer set up in vibrating screen extension's undersize material blanking mouth and overlength rotary shearing machine's below for the pipe tobacco after collecting the transport screening and cuting directly back the use of mixing.

The method for shearing the tobacco shreds by using the ultra-long tobacco shred shearing equipment comprises the following specific steps:

(1) feeding the tobacco shreds to be treated into a vibrating sieving machine for sieving, and sieving to remove medium and short tobacco shreds (the length of the tobacco shreds is 30mm or less);

(2) the screened tobacco shreds continue to move to the oversize material discharge end of the vibrating screen classifier and then enter a tobacco shred carding section to be carded;

(3) the carded tobacco shreds enter a rotary shearing machine, are wound and hung by a rotary cutter and move along with the rotary cutter, and are sheared when passing through a fixed cutter; the cut tobacco shreds are output from the rotary shearing machine.

In order to reduce the cut tobacco breakage generated in the cut tobacco shearing process to the maximum extent, the cut tobacco in the step (1) is cut tobacco leaves and is not subjected to cut tobacco drying and moisture regaining treatment, or the cut tobacco with the higher water content of about 35% (30-38%) is selected. The cut tobacco has good processing resistance.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the rotary shearing machine for the ultra-long tobacco shreds provided by the utility model has the advantages of simple overall structure, reasonable design and easy manufacture; the used rotating and fixed blade has simple structure and is convenient to maintain and use.

(2) The utility model provides an overlength pipe tobacco rotary shearing machine, can adjust the number of rotary cutters according to the actual productivity demand, and then control the shearing rate of pipe tobacco; and a plurality of rotary cutters are arranged on the same circumferential surface, filaments leaked from the front rotary cutter can be hung by the subsequent rotary cutters, and continuous, efficient and uniform cutting of the cut tobacco is realized.

(3) The utility model provides an overlength pipe tobacco rotary shear, rotary cutter detachable fix on the option frame, nursing, maintenance and the change of the later stage blade of being convenient for.

(4) The ultra-long tobacco shred shearing equipment provided by the utility model changes the feeding mode of the traditional vibrating screening machine, and the tobacco shred carding section is added at the discharge end of oversize materials, so that the discharge is more uniform; meanwhile, the tobacco shred carding section of the vibrating screening machine can be matched with a rotary cutter of the ultra-long tobacco shred rotary shearing machine, so that continuous, efficient and uniform shearing of tobacco shreds is realized.

Drawings

Fig. 1 is a schematic perspective view of a rotary shearing machine for ultra-long cut tobacco provided by the present invention;

fig. 2 is a schematic view of the arrangement structure of the rotary cutter and the fixed cutter of the rotary shearing machine for ultra-long tobacco shreds according to the present invention;

fig. 3 is a schematic view of the overall structure of the ultra-long tobacco shred shearing equipment provided by the utility model;

fig. 4 is a right side view of the ultra-long tobacco shred shearing device provided by the utility model;

in the figure: 1. a feed hopper; 2. a vibrating screen classifier; 210. a screen underflow blanking port; 220. a tobacco shred carding section; 3. rotating the shearing machine; 310. fixing the cutter; 320. an end plate; 321. rotating the cutter; 330. a motor reducer; 340. a frame; 4. a first conveyor; 5. and a second conveyor.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

As shown in fig. 1, the utility model provides an overlength pipe tobacco rotary shearing machine 3 includes frame 340, install the swivel mount and be used for driving the rotatory motor reducer 330 of swivel mount on the frame 340, install the rotary cutter 321 that is used for twining the overlength pipe tobacco on the outer periphery of swivel mount, the cutting edge orientation of rotary cutter 321 is unanimous with the direction of rotation of swivel mount. The frame 340 is also provided with a fixed cutter 310. As shown in fig. 2, the blade orientation of the fixed cutter 310 is disposed to correspond to the blade orientation of the rotary cutter 321; when the rotating frame rotates, the rotating cutter 321 on the outer circumferential surface of the rotating frame is driven to rotate, the fixed cutter 310 and the passing rotating cutter 321 form a cutting motion, and the ultra-long cut tobacco hung on the rotating cutter 321 is cut off.

According to the requirement of capacity, a plurality of rotary cutters 321 can be uniformly arranged in the circumferential direction of the rotary frame; the cutting edge tip of each rotary cutter 321 is parallel to the rotary frame and on the same circumferential surface, as shown in fig. 2 and 4.

The two ends of the rotating frame are correspondingly provided with end plates 320, the end plates 320 rotate synchronously along with the rotating frame, a plurality of fixing pieces are connected between the two end plates 320, all fixing rods are uniformly distributed on the same circumferential surface, and the rotary cutter 321 is arranged on the fixing rods through rivets (bolts). Of course, both ends of each rotary cutter 321 may be directly connected to the end plate 320, and the rotary cutters may be arranged in parallel at equal intervals on the same circumferential surface. The number of the rotary cutters 321 can be adjusted according to the capacity requirement to observe the tobacco shred shearing effect, and generally 3-8 rotary cutters can be installed. Meanwhile, in order to obtain a better shearing effect and reduce friction loss between the fixed cutter 310 and the rotary cutter 321, the rotary cutter 321 is installed on the fixed member tangentially along the circumference, and a shearing motion is formed between the fixed cutter 310 and the rotary cutter 321.

As shown in fig. 3 and 4, the utility model provides a tobacco shred cutting device, which comprises a vibrating screen 2 and the rotary shearing machine 3. Vibrating screen machine 2 include material input end, oversize material discharge end and undersize material blanking mouth 210, the material input end is connected with feeder hopper 1, oversize material discharge end and rotary shearing machine 3's feed inlet butt joint. The utility model discloses the below of well vibrating screen 2's screen underflow blanking mouth 210 and 3 rungs of rotary shear all is provided with the conveyer, and the conveyer can be for jigging conveyer or band conveyer.

The oversize material discharge end of the vibrating screen machine 2 is provided with a tobacco shred carding section 220, the tobacco shred carding section 220 is provided with a plurality of carding grooves, the carding grooves radially extend along the length direction of the oversize material discharge end of the vibrating screen machine 2 and correspond to the rotary cutters 321 of the rotary shearing machine 3, and the gap distance between the two is 20-50 mm.

As shown in fig. 4, the tobacco shred carding section 220 has a comb-like cross section. The cross section of the single carding groove can be a V-shaped groove or a U-shaped groove. The cut tobacco output from the discharge end of the oversize material of the vibrating screen 2 enters the carding groove of the cut tobacco carding section 220, is smoothed out, enters the rotary shearing machine 3 and is wound on the rotary cutter 321 of the rotary shearing machine 3.

The specification and size of the carding slot of the tobacco shred carding section 220 can be adjusted according to requirements (such as the length of a sieve plate or the condition of tobacco shreds to be processed), generally, the aperture of the sieve plate of the vibrating sieving machine is 50mm, and the length of the sieve plate is 2 m; the longitudinal length of the carding groove is 0.8-1.2 m, the width of the cross section of the carding groove is 30-50 mm, and the vertical depth of the carding groove is 60-100 mm.

The conveyor arranged below the undersize discharge port 210 of the vibrating screen 2 is a conveyor I4 for collecting the medium-short cut tobacco screened by the vibrating screen 2. A second conveyor 5 is arranged below the rotating frame of the rotary shearing machine 3, and the second conveyor 5 is used for collecting and conveying cut tobacco shreds sheared by the rotary shearing machine 3; and the material output end of the second conveyor 5 extends to the first conveyor 4, the collected materials in the rotary shearing machine 3 are collected into the first conveyor 4, and the first conveyor 4 mixes the cut tobacco shreds back into the screened middle and long tobacco shreds.

By utilizing the tobacco shred cutting equipment in the embodiment, the tobacco shreds are sequentially screened and combed and then cut, and the method comprises the following specific steps:

(1) feeding the tobacco shreds to be treated (the tobacco shreds which are not subjected to cut tobacco drying and moisture regaining treatment after being shredded) into a vibration screening machine 2, and screening on the vibration screening machine 2 to separate medium and long tobacco shreds;

(2) the screened cut tobacco continuously moves to the oversize material discharge end of the vibrating screening machine 2, and the cut tobacco is smoothed and carded in a carding groove after being carded by a cut tobacco carding section 220;

(3) the carded tobacco shreds enter a rotary shearing machine 3, are hung by a rotary cutter 321 and are cut off when passing through a fixed cutter 310 along with the movement of the rotary cutter 321;

(4) the cut tobacco shreds are discharged from the rotary cutter 3.

The specific working principle and process are as follows: after the equipment is installed and adjusted and used, the motors of the vibrating screen machine 2 and the rotary shearing machine 3 are started, and the motor speed reducers of the vibrating screen machine 2 and the rotary shearing machine 3 adopt frequency converters to control the rotating speed, so that the frequency of the frequency converters can be adjusted to an approximate range when the equipment is used for the first time, and the equipment is carried after being normally used. If necessary, the installation number and the rotation speed of the rotary cutters 321 can be adjusted correspondingly by observing the effect of the continuous suspension of the cut tobacco by the rotary cutters 321.

The cut tobacco which is not subjected to cut tobacco moisture regain after being cut into shreds is conveyed into a vibrating screen 2 through a feed hopper 1, the middle and short cut tobacco falls on a conveyor 4 through a screen hole and a screen underflow blanking port 210 of the vibrating screen to be collected and recycled in the process of vibrating and moving the cut tobacco to the output end of the screen plate on the screen plate, the long cut tobacco which cannot penetrate through the screen hole continuously moves to the screen overflow discharge end of the vibrating screen 2, the cut tobacco moves in the carding groove of a cut tobacco carding section 220 in the length direction of the cut tobacco when passing through the cut tobacco carding section 220, the cut tobacco is thrown to a rotary shearing machine 3 from the discharge end of the cut tobacco carding section 220 along with vibration and is hung by a rotary cutter 321 which rotates fast, the long cut tobacco hung on the rotary cutter 321 moves along with the rotary cutter 321 and is cut when passing through a fixed cutter 310, and the cut tobacco is cut through an empty block between the rotary cutters 321, falls into the second conveyor 5 below the rotating frame and is collected to the first conveyor 4.

Claims (8)

1. The utility model provides an overlength pipe tobacco rotary shearing machine, includes the frame and installs the swivel mount in the frame, its characterized in that: the rotary rack is provided with a rotary cutter, the rack is fixedly provided with a fixed cutter corresponding to the rotary cutter, the cutting edge of the fixed cutter and the cutting edge of the rotary cutter are arranged in opposite directions, and the rotary cutter and the fixed cutter form a cutting action when rotating along with the rotary rack and passing through the fixed cutter.

2. A rotary shearer for ultra-long cut tobacco according to claim 1, characterized in that: the rotary cutters are uniformly arranged along the circumferential direction of the rotary frame; the top ends of the cutting edges of the rotary cutters are on the same circumferential surface.

3. A rotary shearer for ultralong cut tobacco according to claim 1 or 2, characterized in that: the rotary frame comprises end plates symmetrically arranged at two ends, a plurality of fixing pieces are connected between the two end plates, the fixing pieces are uniformly distributed on the same circumference, and the rotary cutter is installed on the fixing pieces in a tangential direction along the circumference.

4. The utility model provides an overlength pipe tobacco shearing equipment, includes the vibration screening machine that is used for the pipe tobacco screening, its characterized in that: a rotary shear comprising a shear according to any preceding claim; and the oversize material discharge end of the vibrating screen classifier corresponds to the feed inlet of the rotary shearing machine.

5. The ultra-long cut tobacco shearing apparatus according to claim 4, wherein: a cut tobacco carding section is arranged at the oversize material discharging end of the vibrating screening machine, and a plurality of carding grooves are formed in the cut tobacco carding section; the carding slot extends along the length of the oversize discharge end.

6. The ultra-long cut tobacco shearing apparatus according to claim 5, wherein: the cross section of each carding groove is U-shaped or V-shaped along the width direction of the discharge end of the oversize material, and the cross section of the tobacco shred carding section is in a comb-tooth shape.

7. The ultra-long cut tobacco shearing apparatus according to claim 5, wherein: the aperture of a sieve plate of the vibrating sieving machine is 30-50 mm, and the length of the sieve plate is 1.5-2 m; the longitudinal length of the carding groove is 0.8-1.2 m, the width of the cross section of the carding groove is 30-50 mm, and the vertical depth of the carding groove is 60-100 mm.

8. An ultra-long cut tobacco shearing apparatus according to claim 4, 5, 6 or 7, characterized in that: and a vibrating conveyor or a belt conveyor is arranged below the screen underflow blanking port of the vibrating screening machine and the rotary shearing machine.

Images