CN219396224U - Tobacco shred blending and homogenizing system - Google Patents

Abstract

The utility model discloses a tobacco shred blending uniformity system, which is arranged between a blanking port of a main tobacco shred electronic scale and a blanking port of a blending electronic scale, and comprises a first vibrating trough, a main tobacco shred conveyor, a second vibrating trough and a premixing conveyor; one end of the first vibrating groove is arranged below a blanking port of the main cut tobacco electronic scale, the other end of the first vibrating groove is arranged above one end of the main cut tobacco conveyor, the other end of the main cut tobacco conveyor is arranged below the second vibrating groove, the second vibrating groove and the main cut tobacco conveyor are arranged in parallel up and down, the premixing conveyor and the main cut tobacco conveyor are vertically arranged, one end of the premixing conveyor is arranged below the blanking port of the blending electronic scale, and the other end of the premixing conveyor is arranged above the second vibrating groove. The utility model effectively improves loosening effect and uniformity during tobacco shred blending, and meets the requirements of refining and homogenizing processing, thereby improving the quality of tobacco shreds.

Description

Tobacco shred blending and homogenizing system

Technical Field

The utility model relates to production equipment of cigarettes, in particular to a tobacco shred blending uniformity system.

Background

In the cigarette production process, the proportion blending is a process of accurately and uniformly blending cut stems, expanded cut leaves, air-flow cut tobacco and recovered cut tobacco into dry cut leaves according to the design requirement of a product formula, is a key process for realizing uniform and consistent cut tobacco content of each component of the product formula, and the blending uniformity directly influences the stability of the internal quality of the cigarette product.

The traditional air flow tobacco shred blending section mainly comprises two lines, wherein one line is a main tobacco shred line, and the other line is an air flow tobacco shred line; the process equipment of the main cut tobacco line consists of a main cut tobacco electronic scale and two main cut tobacco belt conveyors. The process of the airflow tobacco shred line consists of an electronic blending scale and a premixing conveyor. The main She Sixian and the air flow tobacco wires are distributed at 90 degrees, the blending electronic scale tracks the flow of the main tobacco wire scale in real time according to a set blending proportion, and the air flow tobacco wires are blended into the main tobacco wire conveyor through the premixing belt conveyor, so that the two-wire blending process is realized.

However, there are two problems in practical application of the present process layout: 1. the main tobacco wire is routed to convey the tobacco shreds through the electronic scale and the two-stage conveyor, the tobacco shreds are more concentrated on the middle of the conveyor belt and are thicker, the phenomenon of tobacco shred agglomeration exists, the tobacco shreds on two sides of the conveyor belt are fewer, the tobacco shreds are not well spread on the conveyor belt, the contact surface with air flow tobacco shreds during mixing can be reduced, and the practical mixing effect is poor: 2. because the mixing proportion of the air flow tobacco shreds is smaller, the loosening effect is poor, the air flow tobacco shreds are distributed on the premixing conveyor and are not continuous tobacco shreds, a part of main tobacco shreds are not mixed with the air flow tobacco shreds, in addition, because the premixing conveyor belt and the main tobacco shred conveyor belt form 90 degrees, the air flow tobacco shreds can be concentrated in the middle of the main tobacco shred conveyor during blanking due to the effect of the blanking cover, the middle spreading is thick, and the two sides are thin or cannot be spread, so that the phenomenon of uneven mixing is caused.

Therefore, although the proportion and the precision of the current air flow tobacco shred blending electronic scale meet the control requirement in the process of blending the air flow tobacco shred into the main tobacco shred, the phenomena of discontinuity and uneven distribution exist in the process of spreading the air flow tobacco shred into the main tobacco shred, and the phenomenon that the blending proportion of the unit volume of tobacco shred after blending can not actually meet the blending requirement is easily caused.

Disclosure of Invention

The utility model designs a novel tobacco shred blending uniform system for solving the problems of poor looseness and uniformity caused by agglomeration and agglomeration of tobacco shreds in tobacco shred blending and researching a spreading mode in airflow tobacco shred blending, so that the loosening effect and uniformity in tobacco shred blending are effectively improved, the requirements of refining and homogenizing processing are met, and the quality of tobacco shreds is improved.

The specific technical scheme of the utility model is as follows:

the tobacco shred blending and homogenizing system is arranged between a blanking port of the main tobacco shred electronic scale and a blanking port of the blending electronic scale and comprises a first vibrating groove, a main tobacco shred conveyor, a second vibrating groove and a premixing conveyor;

the first silk conveyer of shaking is arranged in the blanking mouth below of main leaf silk electronic scale, and the other end is arranged in the one end top of main leaf silk conveyer, the other end of main leaf silk conveyer is arranged in the below of second silk conveyer of shaking, just the second silk conveyer of shaking from top to bottom parallel arrangement, premix conveyer with main leaf silk conveyer sets up perpendicularly, mix the blanking mouth below of electronic scale in advance in the one end of conveyer of premixing is arranged in, the other end is arranged in the top of second silk conveyer of shaking.

Aiming at the phenomena that the tobacco shred is too concentrated in conveying, thicker and agglomerated in the existing tobacco shred blending, the utility model improves the following two aspects:

the system replaces the conveyer belt behind the existing main cut tobacco electronic scale with the first vibrating groove, because of the operation characteristic of the vibrating groove, the agglomerated main cut tobacco falling from the blanking port of the main cut tobacco electronic scale is loosened, the spreading is centered, after the thick cut tobacco shakes through the vibrating groove, the spreading width of unit cut tobacco flow is greatly improved, the width reaches the width of a vibrating groove disc, the main cut tobacco which is spread through the vibration of the first vibrating groove is conveyed forwards to the blending position of the main cut tobacco and the premixing conveyer through the main cut tobacco conveyer, at the moment, the main cut tobacco is effectively spread thinner than the original cut tobacco, the blending area when the main cut tobacco is mixed with the airflow cut tobacco is increased, and the blending effect of the follow-up cut tobacco and the airflow cut tobacco is improved;

secondly, a new second vibration groove is additionally arranged at the blending junction of the main cut tobacco conveyor and the premixing conveyor, the second vibration groove can play a good role in buffering small-flow air flow cut tobacco, meanwhile, due to vibration of the vibration groove, a good loosening effect is played on clustered air flow cut tobacco, original discontinuous cut tobacco flows are buffered on the vibration groove, the cut tobacco is uniformly spread, and the effective area of the cut tobacco when the cut tobacco is blended into the main cut tobacco is improved; in addition, the prior equipment adopts a vertical layout of 90 degrees of a premixing conveyor and a main cut tobacco conveyor, when a blanking port of the premixing conveyor is paved towards the main cut tobacco conveyor, the situation that the air flow cut tobacco quantity at the middle position of the main cut tobacco is overlarge and the air flow cut tobacco quantity at the two sides is smaller and even the air flow cut tobacco is not blended, and the blending proportion and the components of the cut tobacco in unit volume after the actual blending are not uniform.

Further, the first vibrating trough is a ZGH type vibrating conveyor.

Further, the second vibration groove is a high-frequency excitation vibration conveyor.

Further, a first blanking cover is arranged at the blanking port of the main cut tobacco electronic scale, and the first blanking cover is arranged above one end of the first vibrating groove.

The first blanking cover can evenly fall onto the first vibrating trough to meet the requirement that the main cut tobacco falls into the first vibrating trough, so that the main cut tobacco is discharged, and the main cut tobacco is prevented from leaking and drifting out, so that raw materials are wasted.

Further, one end of the first vibrating trough, which is close to the main cut tobacco conveyor, is provided with a blanking baffle. The blanking baffle can smoothly convey the main cut tobacco and drop onto the main cut tobacco conveyor in a transitional manner.

Further, the blanking baffle is obliquely arranged to one side of the main cut tobacco conveyor, and the blanking baffle is arc-shaped. The shape design of the blanking baffle is favorable for the main cut tobacco to quickly slide onto the main cut tobacco conveyor, and the blanking baffle can not fall into a gap between the first vibration groove and the main cut tobacco conveyor, thereby playing a role in blocking well.

Further, a first bracket is arranged at the bottom of the first vibration groove and used for supporting the first vibration groove to be fixedly placed on the ground. The first support plays the bearing effect, and mainly used places first groove that shakes, for the convenient removal in first groove that shakes, can install the universal wheel of taking the brake additional in four corners in the bottom of first support.

Further, a second bracket is arranged at the bottom of the second vibration groove and used for supporting the second vibration groove to be fixedly placed on the ground, and one end of the main cut tobacco conveyor penetrates out of the second bracket. The second support mainly plays a bearing role, is mainly used for placing the second vibrating groove, and simultaneously enables the main cut tobacco conveyor arranged at the bottom of the second vibrating groove in parallel to smoothly penetrate out, and the middle of the second vibrating groove is hollow to form a space for accommodating the penetration of the main cut tobacco conveyor. The operating personnel can install the universal wheel of area brake additional at four corners in the bottom of second support for the convenient removal in second groove that shakes.

Further, a second blanking cover is arranged at the blanking port of the blending electronic scale, and the second blanking cover is arranged above one end of the premixing conveyor.

The second blanking cover can enable airflow cut tobacco to uniformly fall onto the premixing conveyor, and airflow cut tobacco discharging is completed.

Further, a third blanking cover is arranged at one end, close to the second vibration groove, of the premixing conveyor, and the third blanking cover is arranged above the second vibration groove.

The third blanking cover can enable airflow cut tobacco to uniformly fall onto the second vibration groove, and airflow cut tobacco discharging is completed.

The beneficial effects of the utility model are as follows:

after the vibration spreading of the first vibration groove and the second vibration groove, the main cut tobacco and the air flow cut tobacco before blending can be effectively thinned, the problems of poor looseness and uniformity caused by agglomeration and caking of the cut tobacco during the blending of the cut tobacco are solved, and the second vibration groove and the main cut tobacco conveyor are arranged in parallel, so that the air flow cut tobacco can be spread and covered on the surface of the main cut tobacco more uniformly, and the blending proportion and the component stability of the cut tobacco in unit volume are greatly improved. The utility model improves the loosening effect and uniformity when two tobacco shreds are mixed, and meets the requirements of refining and homogenizing processing, thereby improving the quality of the final finished tobacco shreds.

Drawings

FIG. 1 is a schematic diagram of a tobacco shred blending uniformity system according to the present utility model;

FIG. 2 is another schematic view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the electronic leaf shred mixing machine comprises a main leaf shred electronic scale 1, a mixing electronic scale 2, a first vibrating trough 3, a main leaf shred conveyor 4, a second vibrating trough 5, a premixing conveyor 6, a first blanking cover 7, a first bracket 8, a second bracket 9, a second blanking cover 10, a third blanking cover 11 and a blanking baffle 12.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 and 2, the present embodiment provides a tobacco shred blending and homogenizing system, which is disposed between a blanking port of a main cut tobacco electronic scale 1 and a blanking port of a blending electronic scale 2, and the tobacco shred blending and homogenizing system includes a first vibrating trough 3, a main cut tobacco conveyor 4, a second vibrating trough 5 and a premixing conveyor 6;

one end of the first vibrating groove 3 is arranged below a blanking port of the main cut tobacco electronic scale 1, the other end of the first vibrating groove is arranged above one end of the main cut tobacco conveyor 4, the other end of the main cut tobacco conveyor 4 is arranged below the second vibrating groove 5, the second vibrating groove 5 and the main cut tobacco conveyor 4 are arranged in parallel up and down, the premixing conveyor 6 and the main cut tobacco conveyor 4 are vertically arranged, one end of the premixing conveyor 6 is arranged below a blanking port of the blending electronic scale 2, and the other end of the premixing conveyor 6 is arranged above the second vibrating groove 5.

The main cut tobacco electronic scale 1, the first vibration groove 3 and the main cut tobacco conveyor 4 are arranged on the same straight line to form a straight line forward conveying line.

Aiming at the phenomena that the tobacco shred is too concentrated in conveying, thicker and agglomerated in the existing tobacco shred blending, the utility model improves the following two aspects:

the system replaces the conveyer belt behind the existing main cut tobacco electronic scale 1 with the first vibrating groove 3, because of the operation characteristic of the vibrating groove, the agglomerated main cut tobacco falling from the blanking port of the main cut tobacco electronic scale 1 is loosened, the spreading is centered, the spreading width of unit cut tobacco flow is greatly improved after the thick cut tobacco shakes through the vibrating groove, the width reaches the width of a vibrating groove disc, the main cut tobacco which is shaked and spread through the first vibrating groove 3 is conveyed forward to the blending position of the premixing conveyer 6 through the main cut tobacco conveyer 4, at the moment, the main cut tobacco is effectively spread thinner than the original cut tobacco, the blending area when the main cut tobacco is mixed with air flow cut tobacco is increased, and the blending effect of the follow-up cut tobacco and the air flow cut tobacco is improved;

secondly, a new second vibration groove 5 is additionally arranged at the blending junction of the main cut tobacco conveyor 4 and the premixing conveyor 6, the second vibration groove 5 can play a good role in buffering small-flow air flow cut tobacco, meanwhile, due to vibration of the vibration groove, a good loosening effect is played on clustered air flow cut tobacco, original discontinuous cut tobacco flows are buffered on the vibration groove, cut tobacco is uniformly spread, and the effective area of the follow-up cut tobacco blending into the main cut tobacco is improved; in addition, the prior equipment adopts the vertical arrangement of the premixing conveyor 6 and the main cut tobacco conveyor 4 at 90 degrees, when the blanking port of the premixing conveyor 6 is paved towards the main cut tobacco conveyor 4, the situation that the air flow cut tobacco quantity at the middle part of the main cut tobacco is overlarge, the air flow cut tobacco quantity doped at the two sides is smaller and even the air flow cut tobacco is not doped, and the mixing proportion and the components of the cut tobacco in unit volume after the actual mixing are not uniform.

In the present embodiment, the first vibrating trough 3 used is a ZGH type vibrating conveyor, model ZGH8Y929 ZG110B. The ZGH type vibrating conveyor is widely used for conveying various tobacco materials such as cut tobacco, tobacco leaves, tobacco stems and the like in tobacco wire making and threshing redrying lines. The auxiliary connection device between the main machines is used for feeding the main machines, and accessories (such as photoelectric tubes, pneumatic doors and the like) are added to the auxiliary connection device, so that other purposes such as waste removal, fixed-point feeding and the like can be realized. The ZGH type vibrating conveyor adopts a feeding mode with high amplitude and low frequency, the conveying capacity and climbing capacity of the ZGH type vibrating conveyor are stronger than those of the ZBH type vibrating conveyor, and the materials can be loosened by conveying through the vibrating conveyor.

The ZGH type vibrating conveyor mainly comprises an elastic connecting rod transmission device, a groove body, a rocker, a frame, a balance body, a bracket and a motor. The elastic connecting rod transmission device consists of an eccentric driving assembly, a connecting rod and a rubber damping device. The ZGH series vibration conveyor is an eccentric connecting rod balance type vibration conveyor, and mainly adopts vibration to realize conveying equipment for conveying materials. The design concept is that a crank rocker is utilized to generate exciting force, a moment balance type double-mass vibration mechanism is adopted, the trough body is forced to vibrate through the reciprocating motion of a crank (eccentric shaft) and a connecting rod, and the material is thrown up and displaced, so that the purpose of conveying the material is achieved, and the device is suitable for conveying the material with large flow of main cut tobacco.

When the device works, the motor drives the transmission shaft to rotate through the common V belt, then the connecting rod drives the balance body to move through the eccentric device, and then the balance body drives the tank body to perform approximate simple harmonic vibration synchronously and reversely with the balance body through the rocker assembly, when the vibration acceleration of the tank body reaches a certain value, the material continuously throws in the tank body along the conveying direction, so that the material moves forwards, and the conveying purpose is realized. When the balance body and the groove body synchronously and reversely vibrate in an approximate simple harmonic manner, the vibration of the frame is basically eliminated through the mutual balance and the buffer vibration absorption effects of the buffer block and the rubber rod, so that the operation of the conveyor is balanced in the working process, and the noise of the machine is greatly reduced.

The ZGH type vibrating conveyor is a well-known common vibrating machine type, and the specific structure and the vibrating operation principle thereof are clearly known to those skilled in the art, and will not be described here too much.

In this embodiment, the second vibration groove 5 is a high-frequency excitation vibration conveyor, and specific models and names are: ZGC10 type vibrating conveyor (high frequency excitation). The high-frequency excitation vibration conveyor is mainly characterized by small vibration and strong capability of handling peak load, and the output materials are uniform and continuous and can be widely applied to conveying various loose flaky and strip-shaped materials such as blades, cut tobacco, expanded cut tobacco, tobacco stems, cut stems and the like on a wire making line.

The high-frequency excitation vibration conveyor mainly comprises a tank body, an elastic vibration support, a vibration motor and supporting legs. The two vibrating motors counteract the vertical material flow direction component force through synchronous and reverse canister rotation, the vertical force of the vibrating motor shaft is superposed, the trough body is driven to do forced vibration, the trough body is driven by the vibration exciter to generate low-amplitude high-frequency vibration through the spring plate, and continuous tiny throwing or sliding of cut tobacco in the trough body along the conveying direction is realized.

The vibration exciting and vibrating conveyor (high-frequency excitation) has the main characteristics of small vibration, strong capability of processing peak load, uniform and continuous output materials, low noise, good buffering effect and stable work, adopts rubber as a vibration isolation part, and is suitable for the material conveying of HDT small flow.

The ZGC10 type vibrating conveyor (high frequency excitation) is a well known common vibrating machine type, and the specific structure and the vibrating operation principle thereof are clearly known to those skilled in the art, and will not be described here too much.

Referring to fig. 1, in this embodiment, a first blanking cover 7 is disposed at a blanking port of the main cut tobacco electronic scale 1, and the first blanking cover 7 is disposed above one end of the first vibration groove 3. The first blanking cover 7 can evenly fall onto the first vibrating groove 3 to meet the condition that main cut tobacco can fall down to the first vibrating groove, so that main cut tobacco discharging is completed, and the phenomenon that main cut tobacco leaks and floats out to cause raw material waste is avoided.

Referring to fig. 1, in the present embodiment, the bottom of the first vibrating trough 3 is provided with a first bracket 8 for supporting itself for fixed placement on the ground. The first bracket 8 has a bearing function and is mainly used for placing the first vibration groove 3, and universal wheels (not shown in the figure) with brakes can be additionally arranged at four corners of the bottom of the first bracket 8 for convenient movement of the first vibration groove 3.

Referring to fig. 1, in the present embodiment, a second bracket 9 is provided at the bottom of the second vibration groove 5 for supporting itself to be fixedly placed on the ground, and one end of the main cut tobacco conveyor 4 is penetrated out of the second bracket 9. The second bracket 9 mainly plays a role of supporting and is mainly used for placing the second vibrating groove 5, and meanwhile, in order to enable the main cut tobacco conveyor 4 arranged at the bottom of the second vibrating groove 5 in parallel to smoothly penetrate out, the middle of the second vibrating groove is hollow, so that a space for accommodating the penetration of the main cut tobacco conveyor 4 is formed. For the convenient movement of the second vibration groove 5, the operator can install universal wheels (not shown in the figure) with brakes at four corners of the bottom of the second bracket 9.

Referring to fig. 2, in the present embodiment, a second blanking cover 10 is disposed at the blanking port of the blending electronic scale 2, and the second blanking cover 10 is disposed above one end of the pre-mixing conveyor 6. The second blanking cover 10 can uniformly drop the airflow cut tobacco onto the premixing conveyor 6 to finish the discharging of the airflow cut tobacco.

Referring to fig. 1 and 2, in the present embodiment, a third blanking cover 11 is disposed at an end of the premixing conveyor 6 near the second vibration tank 5, and the third blanking cover 11 is disposed above the second vibration tank 5. The third blanking cover 11 can uniformly drop the airflow cut tobacco onto the second vibration groove 5 to finish the discharging of the airflow cut tobacco.

After the vibration spreading of the first vibration groove 3 and the second vibration groove 5, the main cut tobacco and the air flow cut tobacco before blending can be effectively thinned, the problems of poor looseness and uniformity caused by agglomeration and caking of the cut tobacco during the blending of the cut tobacco are solved, the second vibration groove 5 and the main cut tobacco conveyor 4 are arranged in parallel, so that the air flow cut tobacco can be evenly spread and covered on the surface of the main cut tobacco, and the blending proportion and the component stability of the cut tobacco in unit volume are greatly improved. The utility model improves the loosening effect and uniformity when two tobacco shreds are mixed, and meets the requirements of refining and homogenizing processing, thereby improving the quality of the final finished tobacco shreds.

Example 2:

as shown in fig. 3, this embodiment is similar to embodiment 1, except that in this embodiment, a blanking baffle 12 is disposed at an end of the first vibration groove 3 near the main cut tobacco conveyor 4, and the blanking baffle 12 can smoothly convey the main cut tobacco and drop onto the main cut tobacco conveyor 4 in a transitional manner.

Wherein, blanking baffle 12 inclines to one side of main cut tobacco conveyer 4, and blanking baffle 12 is the arc. The shape design of the blanking baffle 12 is beneficial to the main cut tobacco to quickly slide onto the main cut tobacco conveyor 4, and the main cut tobacco can not fall into the gap between the first vibration groove 3 and the main cut tobacco conveyor 4, thereby playing a role in blocking well.

Example 3:

in order to examine the spreading effect of the reformed main cut tobacco on the conveyor, the spreading widths of the cut tobacco before and after reforming on the conveyor belt were measured by the project group, and the measurement results are shown in the following table 1:

TABLE 1

Sequence number	1	2	3	4	5	Average value of
							Before improvement (cm)	57.5	56.2	53.7	58.6	54.2	56.04
After improvement (cm)	106.2	103.8	108.1	105.4	104.6	105.62

From the measurement result, the average width of the main cut tobacco is increased from 56.04cm to 105.62cm before transformation after the first vibration groove 3 vibrates, 88.5% is increased, and the contact area between the main cut tobacco and the airflow cut tobacco is effectively increased, so that the blending effect is improved.

The tobacco shreds of the reformed airflow tobacco threads are quantitatively fed to the premixing conveyor 6 through an electronic scale, then conveyed to the second vibration groove 5, and finally paved above the main tobacco shreds through the second vibration groove 5. The tobacco shreds on the premixing conveyor 6 are buffered under the action of the second vibrating groove 5, so that intermittent tobacco shred flow is improved to continuous and uniform tobacco shred flow, agglomerated tobacco shreds are effectively loosened through vibration, and the subsequent blending quality is improved.

In order to ensure the scientificity, the accuracy and the repeatability of a measuring system, a method for detecting the uniformity of the mixture spreading is designed. And (3) taking tobacco shreds in the same size (tobacco shreds in the length of 25cm are taken every 25cm in the premixing belt and the second vibration groove respectively, and 5 groups are taken) in the premixing conveyor 6 and the second vibration groove 5 respectively by using an equidistant style taking and dividing method as an evaluation object, and verifying the uniformity of materials by taking data statistical analysis as a basis and combining visual evaluation. The visual evaluation is used as a preliminary sensory evaluation, and mainly the visual evaluation is used for evaluating whether the material spreading above the conveyor belt is continuous, the spreading thickness is uniform, the material is agglomerated and caking are caused, and the blending uniformity is evaluated in a sensory manner. And (3) measuring the weight of tobacco shreds in each sampling section, and taking standard deviation of the weight of tobacco shreds in the same area in different areas on the premix belt as a judgment basis through calculation and statistics. The standard deviation is larger, which means that the uniformity of the cut tobacco is worse; the standard deviation is smaller, indicating better uniformity.

The measurement results after sampling are shown in the following table 2:

TABLE 2

Sequence number	1	2	3	4	5	Standard deviation of
							Premixed conveyor (g)	83	75	155	130	167	37.17
Second vibration groove (g)	456	463	480	432	442	16.66

As can be seen from Table 2, when the second vibration tank 5 is not installed, the sample-to-sample difference is large, and the standard deviation of the sample-to-sample is 37.17, which indicates that the instantaneous difference of the small-flow cut tobacco in the mixing process is large. After the second vibration groove 5 is arranged, the standard deviation is measured to be 16.66, the sample-to-sample difference is improved by about 55.17 percent compared with the mixing standard deviation of the premixing conveyor belt, which indicates that the uniformity of the second vibration groove 5 on the airflow tobacco shred spreading is greatly improved, and the mixing uniformity is obviously improved.

Summarizing:

after transformation, the project group performs comparative analysis on the final blending effect before and after: before transformation, the blended air flow tobacco shreds are intensively distributed in the middle of the main tobacco shreds and distributed in a triangle or trapezoid, and the main tobacco shreds with fewer cut shreds at two sides and even edges cannot be blended with the air flow tobacco shreds; after the system is modified, the spreading width of the cut tobacco on the conveying belt is obvious, the air flow cut tobacco can be evenly spread on the surface of the main cut tobacco, and the cross section of the air flow cut tobacco is basically rectangular.

In order to test the blending uniformity after transformation, the project group measures the tobacco shred thickness on the equidistant width of the cross section of the tobacco shred after transformation by using an equidistant style segmentation method, and measures the blending uniformity before and after transformation by using the standard deviation of the tobacco shred thickness, and the measurement result is shown in table 3:

TABLE 3 Table 3

As can be seen from the above Table 3, before transformation, the tobacco shreds mixed in the same cross section at different positions have larger thickness difference, and the standard deviation of sample space is 2.40, which indicates that the mixing is uneven and the spreading difference to different positions of the main tobacco shreds is larger. After transformation, the standard deviation is measured to be 0.45, the difference between samples is small, the standard deviation is improved by about 81.25%, and the uniformity of the air flow tobacco shred spreading after transformation is greatly improved, and the blending uniformity is obviously improved.

The industry calculates the actual total blending proportion (the ratio of the total flow of the batch of blending substances to the total flow of the cut tobacco) and divides the absolute value of the difference between the actual total blending proportion and the set proportion by the set proportion. The calculation formula shows that the index belongs to the overall precision, is essentially result control, and can not reflect whether the blending of each component in the processing process or batch is uniform or not. The blending system provided by the utility model has the advantages that the quality uniformity of blended tobacco shreds is better improved by adopting a refined and homogenized processing technology through the improvement and optimization of equipment layout on the basis of meeting the overall blending precision, so that the consistency and quality stability of tobacco shred products are improved, and the blending system has higher and better blending precision than the traditional layout.

The application of the tobacco shred blending uniformity system improves the effective blending area of the main tobacco shreds by 88.5%; the intermittent tobacco shred flow of the air flow tobacco shred premixing section is changed into continuous tobacco shred flow, and the continuity and stability of the tobacco shred flow are improved by 55.17%; the stability of tobacco thickness at different positions after blending is improved by 81.25%; by the application of the tobacco shred blending uniformity system, the tobacco shred blending uniformity is greatly improved, and the tobacco shred quality is improved.

The main tobacco wire circuit adopts the vibration groove, the airflow tobacco wire circuit adopts the vibration groove, and the airflow tobacco wire circuit has better loosening effect on the caking tobacco wires, not only improves the blending uniformity, but also well reduces the shutdown faults caused by caking and blocking of the tobacco wires in the downstream process.

The improvement of the utility model is one-time exploration of the fine and homogenized processing of the tobacco shreds, lays a foundation for the fine production in the future, captures each detail in the production process, improves the blending effect and precision of the tobacco shreds, and improves the quality stability of the tobacco shred finished products.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The tobacco shred blending and homogenizing system is arranged between a blanking port of a main tobacco shred electronic scale (1) and a blanking port of a blending electronic scale (2), and is characterized by comprising a first vibrating groove (3), a main tobacco shred conveyor (4), a second vibrating groove (5) and a premixing conveyor (6); the utility model discloses a tobacco shred mixing machine, including main leaf silk electronic scale (1), main leaf silk conveyer (4), first jar (3) one end of arranging in the blanking mouth below of main leaf silk electronic scale (1), the other end is arranged in the one end top of main leaf silk conveyer (4), the other end of main leaf silk conveyer (4) is arranged in the below of second jar (5), just second jar (5) with parallel arrangement about main leaf silk conveyer (4), premix conveyer (6) with main leaf silk conveyer (4) set up perpendicularly, the one end of premix conveyer (6) is arranged in the blanking mouth below of blending electronic scale (2), the other end is arranged in the top of second jar (5).

2. A tobacco shred blending uniformity system according to claim 1, wherein said first vibrating trough (3) is a ZGH type vibrating conveyor.

3. A tobacco shred blending uniformity system according to claim 1, wherein said second vibration groove (5) is a high frequency excitation vibration conveyor.

4. The tobacco shred blending uniformity system according to claim 1, wherein a first blanking cover (7) is arranged at a blanking port of the main tobacco shred electronic balance (1), and the first blanking cover (7) is arranged above one end of the first vibrating groove (3).

5. A tobacco shred blending uniformity system according to claim 1, wherein the end of the first vibrating trough (3) close to the main shredded tobacco leaf conveyor (4) is provided with a blanking baffle (12).

6. The tobacco shred blending uniformity system according to claim 5, wherein the blanking baffle (12) is inclined to one side of the main shredded tobacco leaf conveyor (4), and the blanking baffle (12) is arc-shaped.

7. A tobacco shred blending uniformity system according to claim 1, wherein the bottom of the first vibrating trough (3) is provided with a first bracket (8) for supporting itself for fixed placement on the ground.

8. A tobacco shred blending uniformity system according to claim 1, characterized in that a second bracket (9) is arranged at the bottom of the second vibrating groove (5) for supporting the main tobacco shred conveyor (4) to be fixedly placed on the ground, and one end of the main tobacco shred conveyor (4) penetrates out of the second bracket (9).

9. The tobacco shred blending uniformity system according to claim 1, wherein a second blanking cover (10) is arranged at a blanking port of the blending electronic scale (2), and the second blanking cover (10) is arranged above one end of the premixing conveyor (6).

10. The tobacco shred blending uniformity system according to claim 1, wherein a third blanking cover (11) is arranged at one end of the premixing conveyor (6) close to the second vibrating groove (5), and the third blanking cover (11) is arranged above the second vibrating groove (5).