CN111074359B - Adjusting device for colored polylactic acid fibers in cigarette filter tip rod process - Google Patents

Abstract

The invention provides a device for adjusting color polylactic acid fibers during a cigarette filter tip rod, which is characterized in that an adjusting shaft comprises an adjusting seat, a shaft connected with the adjusting seat, a sliding block matched with the shaft and a locking screw positioned on the sliding block; the tow distributing and guiding mechanism comprises a distributing and guiding seat connected with the supporting rod and a distributing rod positioned on the distributing and guiding seat; the plurality of shafts are matched with the plurality of sliding grooves in the fixing seat respectively, the plurality of distributing rods are connected with the distributing guide seat, and the plurality of tows penetrate through the tow distributing guide mechanism respectively and pass through the plurality of threaded rollers on the tow forming device after passing through the plurality of shafts. The polylactic acid fiber is distributed through a plurality of distributing rings on the polylactic acid fiber distributing guide mechanism, the direction and the angle of a tow are adjusted through a rotatable distributing rod and an adjusting shaft, the sliding block limits the polylactic acid fiber to slide in the axial radial direction, the polylactic acid fibers with different colors are loosened and mixed through a plurality of groups of multi-level thread rollers to be formed, and filter rods with different color patterns can be prepared.

Description

Adjusting device for colored polylactic acid fibers in cigarette filter tip rod process

Technical Field

The invention relates to a preparation method of colored polylactic acid fibers, in particular to a preparation method of colored polylactic acid fibers for cigarettes.

Background

The cigarette filter tip plays a great role in reducing tar and harm, improving smoking taste and improving cigarette grade, and is an indispensable part in the cigarette production process. Cigarette filter materials in the market are basically white, along with technological progress and improvement of living standard of people, the requirements of cigarette consumers on differentiation, functionalization and diversification of cigarette filters are higher and higher, and the development of color cigarette tows and filter sticks also becomes a trend.

In the field of synthetic fibers, the technology for producing colored fibers is mature, related documents are more, and the mainly adopted methods are as follows: the color master batch is blended and spun, dye solution is added into slurry for spinning, and dyeing is carried out during post-treatment, and the colored fiber is basically produced by adding pigment or dye.

In the field of cigarette tows, documents for producing color tows are few, and the invention patent CN200410065222.8 discloses a method for producing color cigarette acetate tow, which comprises the steps of adding 0.1-1% by weight of color dye into slurry, and then carrying out solution spinning to produce color tows. The utility model patent CN201320779385.7 discloses a device of production colored acetate fibre silk bundle for cigarette comprises seal wire roller, dyeing box, jet dyeing ware, pigment storage tank, pigment pipe, compressed air pipe, back flow, adjusting device, silk bundle pipe, connects the liquid dish, and the technique of taking is that the mode of carrying out the dyeing produces colored silk bundle in the vinegar fibre silk bundle aftertreatment process. The above documents also adopt a method of adding pigment or dye to produce the color cigarette tows.

The cigarette tows and the cigarette filter tip have higher requirements on safety performance, the selection of the pigment and the dye is limited to a certain extent, part of cigarette enterprises have certain concerns when selecting the color tows, and a new process for producing the color cigarette tows without adding the pigment and the dye is also expected. In the earlier research result CN201511025775.5, a preparation method of color polylactic acid cigarette tows is disclosed: adding saccharide substances and amino compounds in the polylactic acid blending and melt spinning processes, and utilizing caramelization reaction and Maillard reaction to produce a series of colored polylactic acid cigarette tows from light yellow → brown and the like. In order to further develop a filter material suitable for cigarettes and a colorful polylactic acid fiber material with characteristics, a great amount of experimental research work is carried out on the aspect of blending and dyeing of natural organic pigments and polylactic acid.

Lutein, also known as plant lutein, is an oxygen-containing carotenoid widely found in natural plants such as marigold, banana, kiwi fruit and corn, and is a natural edible pigment. Is an antioxidant with excellent performance, can resist the damage of oxygen free radicals to cells and organs in a human body, and prevent cardiovascular sclerosis, coronary heart disease and other symptoms caused by aging of the organism. Lutein plays a very important role not only as an antioxidant to suppress the risk of cancer and heart disease, but also in protecting eyes. Pure xanthophyll is prismatic lattice yellow crystal, has metallic luster, is unstable to light and oxygen, and needs to be stored in shady and dry place and sealed in dark

Lutein ester is a compound formed by one molecule of lutein and one or two molecules of fatty acid, and is present in our daily diet just like it is well known that dietary fat, vitamin A and vitamin E, and is a nutrient naturally present in things of nature like lutein. Lutein esters are extracted from marigold flowers: it can be naturally decomposed and converted into xanthophyll in human body, and has effects of protecting eyesight, relieving asthenopia, preventing senile macular region pathological changes and cataract, protecting eye health, and resisting aging.

Lycopene (Lycopene), also known as psi-carotene, belongs to isoprenoid compounds, and is one of carotenoids. Lycopene is known because it was first isolated from tomatoes. Lycopene has excellent physiological functions, has the effects of resisting cancer and inhibiting cancers, has important significance for preventing various adult diseases such as cardiovascular diseases, arteriosclerosis and the like, enhancing the immune system of a human body, delaying aging and the like, and is a novel functional natural pigment with great development prospect. The lycopene has 11 conjugated double bonds and 2 non-conjugated double bonds in its molecule, so that the stability of lycopene is relatively poor, and cis-trans isomerization and oxidative degradation can occur under certain conditions. Lycopene is sensitive to oxidation and its solution is substantially depleted after 12 hours of exposure to sunlight.

The natural pigment is easy to oxidize, the polylactic acid is easy to oxidize and degrade in the spinning process, the natural pigment and the polylactic acid can generate a synergistic inhibition effect when being mixed and spun, the oxidation degradation of the natural pigment can reduce the oxidation degradation of the polylactic acid, meanwhile, the oxidation degradation of the polylactic acid in high-temperature spinning can also inhibit and reduce the oxidation fading of the natural pigment, a small amount of lactic acid generated by the oxidation degradation of the polylactic acid can also react with the natural pigment to generate lactate pigment, and the stability of the natural pigment is further improved. The natural pigment is used for producing colored fiber, and is also beneficial to the spinning of polylactic acid and the improvement of fiber performance.

Lycopene, lutein and lipid substances thereof are safe and environment-friendly, have a health-care function, and can be used for cigarette filter materials; on the other hand, the natural organic pigments can change color and even fade in the processes of illumination and high-temperature oxidation, can produce yellow series products with different color depths, and can also produce an anti-counterfeiting effect for special filter sticks for cigarettes. Through a large number of experimental researches, a preparation method of the colored polylactic acid fiber is further provided.

Disclosure of Invention

The invention aims to solve the technical problem of providing a preparation method of colored polylactic acid fiber, endowing the fiber with specific color and anti-counterfeiting performance (capable of fading by illumination), and when the fiber is used as a cigarette filter material, the fiber is safe, environment-friendly and degradable, can further improve the sensory quality of cigarettes, and provides a new choice for diversification and differentiation of the cigarette filter material.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

adding natural organic pigment in the melt spinning process of polylactic acid, and producing the polylactic acid fibers with different colors by adjusting the raw material ratio and the spinning temperature.

The natural organic pigment comprises one or more of lycopene, lutein, lycopene and lutein lipid.

The polylactic acid is fiber-grade polylactic acid.

The weight ratio of the natural organic pigment to the polylactic acid is as follows: 0.01-2: 99.99-98.

The color of the colored polylactic acid fiber is regulated and controlled by the raw material proportion and the temperature in the spinning process, tows are respectively or simultaneously conveyed to a screw feeding section by a filter tow regulating device during spinning, the temperature of the screw feeding section is controlled to be 150-190 ℃, and then the colored polylactic acid fiber can be obtained by spinning at 200-245 ℃.

The colored polylactic acid fiber is applied to the preparation of cigarette filter rods.

The colored polylactic acid fiber can be used as a colored functional centerline for producing a functional centerline cigarette filter stick.

A preparation method of colorful polylactic acid fiber cigarette tows comprises the following steps:

(1) mixing the polylactic resin and the organic pigment, and drying, wherein two processes can be adopted: a. adding polylactic resin and organic pigment into a drum dryer simultaneously according to a certain proportion, drying and mixing for 8-24 hours at the temperature of 60-90 ℃, drying the water in the raw materials to be below 80-100PPM, and adding the raw materials into a stock bin for spinning, wherein the scheme is preferred; b. or adding the polylactic resin into drying equipment, independently drying for 8-24 hours at the temperature of 60-90 ℃, drying the raw material to the moisture content of below 80-100PPM, then adding the raw material and the organic pigment into a mixer at the same time according to the proportion, mixing for 3-5 minutes, and adding the mixture into a stock bin for spinning.

(2) Spinning: the method comprises the processes of multi-filament mixing and forming through a filter tow adjusting device, multi-filament extrusion melting, filtering, pipeline conveying, metering spinning, air cooling, oiling, drafting and the like, is the same as the conventional synthetic fiber melting spinning equipment and procedures, and is characterized in that the spinning temperature is controlled, and the method is mainly expressed in the following two aspects: a. during high-temperature spinning (above 230 ℃), the polylactic acid and the organic pigment have large oxidative degradation degree and light fiber color; during low-temperature spinning, the polylactic acid and the organic pigment have small oxidative degradation degree, and the color of the fiber is dark; b. the organic pigment, especially the lipid substance thereof, shows a certain lubricating effect in the process of multi-filament bundle mixed extrusion melting and spinning, and is easy to generate abnormal phenomena such as slipping, ring material blocking and the like during feeding in the process of screw extrusion melting. In order to solve the problem, the spinning temperature design value of the screw feeding section is 10-30 ℃ lower than that of the conventional polylactic acid spinning, so that the organic yarn bundle section is formed and stabilized, and the temperature of the feeding section is lower when the addition amount of the organic pigment is larger.

(3) And (3) post-treatment: the method comprises the working procedures of drafting, curling, drying and shaping, inspecting, silk loading, packaging, finished product warehousing and the like, and is the same as the working procedure and the process of the conventional polylactic acid fiber post-treatment.

The natural organic pigment added into the fiber product is safe and environment-friendly, has a health-care function, and has certain effects of improving the filtering performance and improving the sensory quality of cigarettes when being used for cigarette filtering materials.

The natural organic pigment in the fiber product can slowly change color and fade under the illumination condition, and the fiber has certain anti-counterfeiting performance when being used as a filter material for cigarettes.

The added natural organic pigment has red lycopene and dark reddish brown lutein ester, and the polylactic acid fiber produced by regulating the material ratio and the spinning temperature can show dark to light color.

Organic pigment, especially lipid substances thereof, has small friction among colorful tows in the processes of multi-tow mixed extrusion melting and spinning, shows a certain lubricating effect, and easily generates abnormal phenomena such as slipping, ring-knot material blocking and the like during feeding in the process of preparing the colorful filter tow.

And the problems of single anti-counterfeiting, complex manufacturing equipment structure, multiple processes and high cost of the single-color tows or patterns formed by one color in the anti-counterfeiting process of the original cigarette filter rod are solved. The invention provides a multi-color filter which has the characteristics of simple structure, simple process, low cost and convenient operation, and can change different directions and angles when tows separated from a plurality of distributing rods pass through a plurality of adjusting shafts, thereby changing the color or pattern of the tows in the rolling process, and simultaneously fixing the stability of the tows in the sample introduction process in real time, so that the temperature of the tows is stably and uniformly heated in the colorful tows in the hot process of forming a filter tip.

A filter tow regulating device comprises a fixed seat, a regulating shaft and a tow distribution guide mechanism; the fixed seat is provided with a plurality of sliding chutes; the adjusting shaft comprises an adjusting seat, a shaft connected with the adjusting seat, a sliding block matched with the shaft and a locking screw positioned on the sliding block; the tow distributing and guiding mechanism comprises a distributing seat connected with the supporting rod, a distributing rod positioned at the lower end of the distributing seat and an arc-shaped smooth guiding top positioned at the upper part of the distributing seat; a plurality of axles cooperate with a plurality of spouts on the fixing base respectively, and a plurality of distribution poles are connected with the distribution seat, and a plurality of tows are after a plurality of axles are adjusted respectively to the direction back of distributing, through a plurality of threaded rollers on the tow forming device. Simple structure distributes the silk bundle through the regulating spindle through a plurality of rings of distributing on the silk bundle distribution mechanism, through direction and the angle of rotatable distribution pole, regulating spindle regulation silk bundle, the slider limits the silk bundle at epaxial radial slip, and the silk bundle of multiple different colours is mixed after multistage multiunit screw thread roller is opened, then the shaping, can prepare out the filter rod of different colours or pattern, and anti-fake means is diversified, simple process, and is with low costs, convenient operation.

In a preferred scheme, the adjusting seat is a rod-shaped structure body, one end of the adjusting seat is provided with a connecting head, and the other end of the adjusting seat is provided with a threaded hole matched with the adjusting screw. Simple structure, adjusting screw slide in being located the spout on the fixing base to with screw hole cooperation locking, adjust the interval between each axle, easy operation adjusts convenient and fast.

In a preferred scheme, the connector is of a rod body structure, an insertion block is arranged on the connector, and a connecting hole is formed in the insertion block. Simple structure, the plug block on the connector cooperates with the plug interface on the axle, and the connection is convenient.

In a preferred scheme, the shaft is of a rod body structure, one end of the shaft is provided with a socket, and the rotary hole penetrates through the socket. Simple structure, the epaxial interface of bayonet socket and the cooperation of the plug block on the connector, it is convenient to connect.

In a preferred scheme, the sliding block is a block-shaped body, a shaft hole is formed in the sliding block, and the threaded hole penetrates through the shaft hole. Simple structure, the shaft hole on the slider slides with the axle cooperation, and two sliders can restrict the silk bundle and at epaxial radial slip.

In a preferred scheme, the shaft hole on the sliding block is matched with the shaft, and the locking screw is matched with the threaded hole on the sliding block. Simple structure, the shaft hole on the slider slides with the axle cooperation, and locking screw locks convenient operation.

In a preferred scheme, the insertion block on the connector is matched with the insertion port on the shaft, and the fastener penetrates through the connecting hole and the rotating hole. Simple structure connects conveniently, and this fastener is pin or bolt, and pin joint's axle can be rotatory around the connector, and bolted connection's axle not only can be rotatory around the connector, can also lock after the rotatory certain angle of connector.

In a preferred scheme, an adjusting screw on the adjusting seat is matched with a sliding groove on the fixed seat. Simple structure, adjusting screw slides in the spout on the fixing base to by adjusting screw locking, adjust convenient and fast.

In a preferred scheme, the lower end of the distribution guide seat is provided with a screw hole, the top of the distribution guide seat is of an arc smooth structure, and tows in different colors can be smoothly guided to the next process after being separated by the distribution ring; the distributing rod is a bent rod body, one end of the distributing rod is provided with a circular distributing ring, the other end of the distributing rod is provided with threads, and the distributing rod is matched with a screw hole in the distributing guide seat to be fixed on the distributing seat. Simple structure, but the silk bundle on the distribution ring after receiving the pulling force of thread roll automatically regulated with the angle that the axle cut into, the distribution pole can be according to silk bundle kind and radical how much, suitably adjust the silk bundle interval, the regulating effect is better.

Drawings

Figure 1 photograph of yellow (dark) PLA fibers.

Figure 2 golden PLA fiber.

Fig. 3 yellow PLA fibers.

Fig. 4 lemon yellow PLA fibers and a lemon yellow midline filter stick.

Figure 5 shows color PLA cigarette tows and filter sticks.

Fig. 6 shows pale yellow PLA fiber strands and the color change after one week and one month of sun exposure.

Fig. 7 is a schematic structural diagram of the present invention.

Fig. 8 is a schematic view of the structure of the fixing base and the adjusting shaft.

Fig. 9 is a schematic structural diagram of an adjusting seat of the present invention.

Fig. 10 is a schematic structural view of an adjusting shaft of the present invention.

Fig. 11 is a working state diagram of the present invention.

In the figure: the device comprises a fixed seat 1, a sliding groove 11, an adjusting shaft 2, an adjusting seat 21, a connecting head 211, an adjusting screw 212, an inserting block 213, a connecting hole 214, a shaft 22, an inserting port 221, a rotating hole 222, a sliding block 23, a locking screw 24, a tow distributing guide mechanism 3, a supporting rod 31, a distributing guide seat 32, a distributing rod 33, a distributing ring 331, polylactic acid fibers 4 and a threaded roller 5.

In figure 12, yellow and red filter tips for cigarettes are added.

Figure 13 is a filter tip for cigarettes with blue, green, red and purple added.

Detailed Description

The prepared tow is a safe, environment-friendly and completely degradable green and environment-friendly product, has specific color and luster and anti-counterfeiting performance (can fade by illumination), contains natural edible pigment, can be directly used for producing cigarette filter tips, can also be used as a color functional central line for producing functional central line cigarette filter sticks, can effectively improve the quality of low-grade tobacco, reduces wood miscellaneous gas, increases cigarette aroma, further improves the filtering and adsorbing effect on harmful substances in cigarette smoke and the cigarette sensory quality, can meet the use requirement of cigarettes, and provides a new choice for diversification, functionalization and differentiation of cigarette filter materials.

Take a series of colored polylactic acid fibers such as golden yellow → Zhenghuang → lemon yellow → light yellow as an example.

Example 1

Adding polylactic resin into a vacuum oven, drying for 24 hours at 70 ℃ to ensure that the water content of the raw materials is lower than 80PPM, taking out, and selecting a natural pigment which is lycopene according to the weight ratio: polylactic acid = 0.8: 99.2, adding the mixture into a screw extruder, setting the temperature of a screw feeding area to be 170 ℃ and the temperature of other areas (including other areas of the screw, a filter, a conveying pipeline, a spinning manifold and the like) to be 220 ℃, and producing the golden polylactic acid fiber shown in the figure 1 through metering spinning; maintaining the temperature of the feed zone at 170 c and the other zones at 240 c produces a lighter colored, golden polylactic acid fiber as shown in fig. 3. In the post-treatment process, according to the short fiber production process, golden yellow polylactic acid fiber can be prepared through the working procedures of drafting, curling, drying and shaping, filament spreading, packaging and the like; according to the filament production process, the golden polylactic acid fiber center line material for the filter stick for the cigarette can be prepared through the working procedures of twisting, winding and the like.

Example 2

Selecting a natural pigment as a mixture of lycopene and lutein, wherein the natural pigment comprises the following components in percentage by weight: lutein: polylactic acid = 0.5: 1.0: 98.5, adding the mixture into a vacuum drum dryer, drying and mixing the mixture for 12 hours at 80 ℃ to ensure that the water content of the raw materials is lower than 100PPM, adding the mixture into a screw extruder, setting the temperature of a screw feeding area to be 155 ℃ and the temperatures of other areas (including other areas of the screw, a filter, a conveying pipeline, a spinning box body and the like) to be 215 ℃ in a gradually increasing mode, and producing the golden polylactic acid fiber shown in the figure 2 through metering spinning; maintaining the feed zone temperature at 155 deg.C constant while the other zones are raised to 245 deg.C produces a pale golden polylactic acid fiber as shown in FIG. 4. In the post-treatment process, according to the short fiber production process, golden yellow polylactic acid fiber can be prepared through the working procedures of drafting, curling, drying and shaping, filament spreading, packaging and the like; according to the filament production process, the golden polylactic acid fiber center line material for the filter stick for the cigarette can be prepared through the working procedures of twisting, winding and the like.

Example 3

Selecting natural pigment as lutein ester, wherein the weight ratio of the lutein ester is as follows: polylactic acid = 0.3: 99.7, drying and mixing the raw materials for 24 hours at 60 ℃ in a vacuum drum dryer to ensure that the water content of the raw materials is lower than 100PPM, adding the raw materials into a screw extruder, setting the temperature of a screw feeding area to be 160 ℃, setting the temperature of other areas (including other areas of the screw, a filter, a conveying pipeline, a spinning box body and the like) to be 210 ℃, and producing the yellowish polylactic acid fiber shown in the figure 5 through metering spinning.

Example 4

Selecting natural pigment as lutein and lutein ester for blending, wherein the weight ratio of the lutein: lutein ester: polylactic acid = 0.1: 0.2: 99.7, adding the mixture into a vacuum drum dryer, drying and mixing the mixture for 16 hours at 70 ℃ to ensure that the water content of the raw materials is lower than 100PPM, adding the mixture into a screw extruder, setting the temperature of a screw feeding area to be 165 ℃ and the temperature of other areas (including other areas of the screw, a filter, a conveying pipeline, a spinning box and the like) to be 225 ℃, and producing the yellowish polylactic acid fiber shown in the figure 6 through metering spinning; in the post-treatment process, according to the short fiber production process, through the working procedures of oiling, drafting, curling, drying and shaping, filament spreading, packaging and the like, the yellowish polylactic acid fiber can be prepared; according to the filament production process, the positive yellow polylactic acid fiber center line material for the filter stick for the cigarette can be prepared through the working procedures of twisting, winding and the like.

Example 5

Selecting natural pigment as lutein ester, wherein the weight ratio of the lutein ester is as follows: polylactic acid = 0.1: 99.9, adding the mixture into a vacuum drum dryer, drying and mixing the mixture for 10 hours at 85 ℃ to ensure that the water content of the raw materials is lower than 100PPM, adding the raw materials into a screw extruder, setting the temperature of a screw feeding zone to be 170 ℃ and the temperatures of other zones to be 225 ℃, and producing the lemon-yellow polylactic acid fiber shown in figure 7 through metering spinning. In the post-treatment process, according to the short fiber production process, through the working procedures of oiling, drafting, curling, drying and shaping, spreading, packaging and the like, lemon yellow polylactic acid fiber cigarette tows can be prepared; according to the filament production process, through the working procedures of twisting, winding and the like, the lemon yellow polylactic acid fiber center line material for the filter stick for cigarettes can be prepared, and the lemon yellow center line filter stick shown in figure 8 can be produced by adding the center line material into the filter stick.

Example 6

Selecting natural pigment as lutein ester, wherein the weight ratio of the lutein ester is as follows: polylactic acid = 0.02: 99.98, adding the mixture into a vacuum drum dryer, drying and mixing the mixture for 18 hours at 70 ℃ to ensure that the water content of the raw materials is lower than 100PPM, adding the raw materials into a screw extruder, setting the temperature of each area of a screw to be 180-230 ℃ and the temperature of a conveying pipeline and a spinning manifold to be 225 ℃ in a gradually increasing mode. The light yellow polylactic acid fiber shown in figure 11 can be produced through metering spinning, in the post-treatment process, the light yellow polylactic acid fiber cigarette tow shown in figure 9 can be prepared through the procedures of oiling, drafting, curling, drying and sizing, filament paving, packaging and the like according to the cigarette tow production process, and the light yellow polylactic acid filter stick shown in figure 10 can be produced after the tow is used for filter stick forming; according to the filament production process, the light yellow polylactic acid fiber midline material for the filter stick for the cigarette can be prepared through the working procedures of twisting, winding and the like.

In the various embodiments, the polylactic acid fiber tows with the monofilament linear density of 2.0 to 20dtex and the tow linear density of 150 to 50000dtex in various specifications can be prepared by replacing the spinneret plates with different hole numbers or replacing different bundling numbers. Wherein the density of the tow line is below 15000dtex, and the tows with various specifications can be used as the center line of the cigarette filter rod; the tows with the density of the tow lines of 18000-25000 dtex and various specifications can be used for fine cigarette filter rods; the tows with the density of the tow lines of 25000 to 38000dtex and various specifications can be used for filter tips of medium-count cigarettes; the tows with the density of the tow lines of 35000-50000 dtex and various specifications can be used for conventional cigarette filter rods. The produced cigarette filter tip rod and the functional centerline filter rod can endow the cigarette with unique appearance, and are convenient for anti-counterfeiting; the color tows can also effectively improve the quality of inferior tobacco, reduce wood miscellaneous gas and increase tobacco fragrance, further improve the filtering and adsorbing effect of harmful substances in cigarette smoke and the sensory quality of cigarettes, can meet the use requirements of cigarettes, and can provide a new choice for diversification, functionalization and differentiation of cigarette filtering materials.

The filter tow device used in the process of preparing the filter tow from the tows with different colors comprises a fixed seat 1, an adjusting shaft 2 and a tow distributing and guiding mechanism 3 as shown in fig. 7-12; the fixed seat 1 is provided with a plurality of sliding chutes 11; the adjusting shaft 2 comprises an adjusting seat 21, a shaft 22 connected with the adjusting seat 21, a sliding block 23 matched with the shaft 22 and a locking screw 24 positioned on the sliding block 23; the tow distributing mechanism 3 comprises a distributing guide seat 32 connected with the supporting rod 31 and a distributing rod 33 positioned at the lower end of the distributing seat 32; a plurality of axles 22 cooperate with a plurality of spouts 11 on the fixing base 1 respectively, and a plurality of distribution poles 33 are connected with distribution seat 32, and behind the polylactic acid fibre 4 (red, yellow, blue and green etc.) of many different colours through distributing guider 3, mix after respectively opening through a plurality of threaded rollers 5 on the silk bundle forming device behind a plurality of axles 22. Simple structure, it passes through regulating spindle 2 to distribute polylactic acid fibre 4 through a plurality of distribution rings 331 on the tow distribution guiding mechanism 3, through rotatable distribution rod 33, regulating spindle 2 adjusts polylactic acid fibre 4's direction and angle, slider 23 restricts polylactic acid fibre 4 and mixes after multistage multiunit thread roller 5 opens the back of polylactic acid fibre 4 of multiple different colours, then the shaping, can prepare the filter rod of different colours or pattern, anti-fake means is diversified, simple process, low cost, and convenient operation.

In a preferred scheme, the adjusting seat 21 is a rod-shaped structure, one end of which is provided with a connecting head 211, and the other end of which is provided with a threaded hole matched with the adjusting screw 212. Simple structure, adjusting screw 212 slide in the spout 11 that is located on fixing base 1 to with screw hole cooperation locking, adjust the interval between each axle 22, easy operation adjusts convenient and fast.

In a preferred embodiment, the connector 211 is a rod structure, and is provided with an insertion block 213, and the insertion block 213 is provided with a connection hole 214. Simple structure, the plug block 213 on the connector 211 is matched with the plug interface 221 on the shaft 22, and the connection is convenient.

In a preferred embodiment, the shaft 22 is a rod structure, one end of which is provided with a socket 221, and the rotation hole 222 penetrates through the socket 221. The structure is simple, the insertion interface 221 on the shaft 22 is matched with the insertion block 213 on the connector 211, and the connection is convenient.

In a preferred embodiment, the sliding block 23 is a block-shaped body, and a shaft hole is formed in the block-shaped body, and the threaded hole penetrates through the shaft hole. The structure is simple, the shaft holes on the sliding blocks 23 are matched with the shaft 22 to slide, and the two sliding blocks 23 can limit the polylactic acid fiber 4 to slide on the shaft 22 in the radial direction.

In a preferred scheme, a shaft hole on the sliding block 23 is matched with the shaft 22, and a locking screw 24 is matched with a threaded hole on the sliding block 23. Simple structure, the shaft hole on the slider 23 slides with axle 22 cooperation, and locking screw 24 locks convenient operation.

In a preferred embodiment, the insertion block 213 of the connection joint 211 is engaged with the insertion port 221 of the shaft 22, and the fastening member passes through the connection hole 214 and the rotation hole 222. Simple structure, it is convenient to connect, and this fastener is pin or bolt, and pin joint's axle 22 can be rotatory around connector 211, and bolted connection's axle 22 not only can be rotatory around connector 211, can also lock after the rotatory certain angle of connector 211.

In a preferred scheme, an adjusting screw 212 on the adjusting seat 21 is matched with the sliding groove 11 on the fixed seat 1. Simple structure, adjusting screw 212 slides in the spout 11 on fixing base 1 to by adjusting screw 212 locking, adjust convenient and fast.

In a preferred scheme, a rotating bearing is arranged on the distributing seat 32; the distribution rod 33 is a curved rod body, and one end of the distribution rod is provided with a circular distribution ring 331; the other end of the dispensing rod 33 engages a rotational bearing on the dispensing seat 32.

In the preferred scheme, the lower end of the distribution guide seat 32 is provided with a screw hole, the top of the distribution guide seat is of an arc smooth structure, and tows of different colors can be smoothly guided to the next process after being separated by the distribution ring; the dispensing rod 33 is a curved rod body, one end of the dispensing rod is provided with a circular dispensing ring 331, the other end of the dispensing rod is provided with threads, and the dispensing rod 33 is fixed on the dispensing seat 32 by matching with screw holes on the dispensing guide seat 32. Simple structure, polylactic acid fibre 4 on the distribution ring 331 can automatically regulated and the axle 22 angle of cutting into after receiving the pulling force of thread roller 5, and the distribution rod 33 can be according to how much suitable the interval of adjustment silk bundle of silk bundle kind and radical, and the regulating effect is better.

When the filter tow adjusting device works, the polylactic acid fibers 4 distributed by the plurality of distributing rings 331 on the tow distributing guide mechanism 3 pass through the adjusting shaft 2 and enter the threaded roller 5 to be guided and opened after being pulled by the threaded roller 5, meanwhile, the adjusting shaft 2 adjusts the direction and the angle of the polylactic acid fibers 4, the sliding blocks 23 limit the radial sliding of the polylactic acid fibers 4 on the shaft 22, the positions and the states of the tows before and after entering the opening roller can be adjusted, the polylactic acid fibers 4 with different colors are opened and mixed by the multistage groups of threaded rollers 5 and then are molded, filter rods with different colors or patterns can be prepared, the anti-counterfeiting means is diversified, the process is simple, the cost is low, and the operation is convenient.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims (3)

1. The utility model provides a controlling means of colored polylactic acid fibre of cigarette filter rod in-process which characterized in that: comprises a fixed seat (1), an adjusting shaft (2) and a tow distribution guide mechanism (3); a plurality of sliding grooves (11) are arranged on the fixed seat (1); the adjusting shaft (2) comprises an adjusting seat (21), a shaft (22) connected with the adjusting seat (21), a sliding block (23) matched with the shaft (22) and a locking screw (24) positioned on the sliding block (23); the tow distribution guide mechanism (3) comprises a distribution guide seat (32) connected with the support rod (31) and a distribution rod (33) positioned on the distribution guide seat (32); the shafts (22) are respectively matched with the chutes (11) on the fixing seat (1), the distributing rods (33) are connected with the distributing guide seat (32), and the tows (4) respectively pass through the tow distributing guide mechanism (3) and then pass through the shafts (22) and then pass through the threaded rollers (5) on the tow forming device; the adjusting seat (21) is a rod-shaped structure body, one end of the adjusting seat is provided with a connecting head (211), the other end of the adjusting seat is provided with a threaded hole matched with the adjusting screw (212), the connecting head (211) is of a rod body structure, an inserting block (213) is arranged on the connecting head, a connecting hole (214) is arranged on the inserting block (213),

the shaft (22) is of a rod body structure, one end of the shaft is provided with a socket (221), a rotary hole (222) penetrates through the socket (221), the sliding block (23) is a block-shaped body, a shaft hole is formed in the sliding block (23), a threaded hole penetrates through the shaft hole, the shaft hole in the sliding block (23) is matched with the shaft (22), a locking screw (24) is matched with the threaded hole in the sliding block (23), a socket block (213) in the connector (211) is matched with the socket (221) in the shaft (22), and a fastener penetrates through the connecting hole (214) and the rotary hole (222).

2. The adjusting device according to claim 1, characterized in that the adjusting screw (212) on the adjusting seat (21) is matched with the sliding groove (11) on the fixed seat (1), the lower end of the distributing guide seat (32) is provided with a screw hole, the top of the distributing guide seat is of an arc smooth structure, and tows of different colors can be smoothly guided to the next process after being separated by the distributing ring.

3. The adjustment device according to claim 1, wherein the dispensing rod (33) is a curved rod body provided with a circular dispensing ring (331) at one end and a screw thread at the other end for cooperating with a screw hole in the dispensing guide seat (32) to secure the dispensing rod (33) to the dispensing seat (32).

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