A cotton strip merging device

Abstract

A sliver merging device includes a sliver guiding mechanism, a merging mechanism is arranged behind the sliver guiding mechanism, and a accommodating chamber is arranged behind the merging mechanism; the merging mechanism includes an adjusting part for adjusting the sliver, a stretching part for stretching the sliver, and a merging part for merging fabrics, which are arranged in sequence; the adjusting part includes a fixed roller and an adjusting roller arranged in cooperation with the fixed roller, and the sliver passes through the gap between the fixed roller and the adjusting roller. The present application adopts an adjusting part and a stretching part arranged in cooperation, which can shape and stretch the sliver in sequence, so that the quality of the sliver finally merged is controllable and the cohesion between the fibers is good.

Description

Technical Field

[0001] The present application relates to a sliver combining device. Background Art

[0002] In order to improve the internal structure of cotton slivers, increase the uniformity of their long segments, reduce the weight unevenness, make the fibers in the slivers straight and parallel, reduce hooks, make the fineness meet the requirements, mix the raw materials of different types or qualities evenly, and achieve the specified mixing ratio, the cotton slivers are generally combined. However, the existing combining devices have a certain possibility of causing damage to the cotton slivers, and the fiber cohesion between the finally combined cotton slivers is not very high. Summary of the invention

[0003] In order to solve the above problems, the present application proposes a sliver merging device, including a sliver guiding mechanism, a merging mechanism is arranged behind the sliver guiding mechanism, and a accommodating chamber is arranged behind the merging mechanism; the merging mechanism includes an adjusting part for adjusting the sliver, a stretching part for stretching the sliver, and a merging part for merging fabrics, which are arranged in sequence; the adjusting part includes a fixed roller and an adjusting roller arranged in cooperation with the fixed roller, and the sliver passes through the gap between the fixed roller and the adjusting roller. The present application adopts an adjusting part and a stretching part arranged in cooperation, which can shape and stretch the sliver in sequence, so that the quality of the sliver finally merged can be controlled, and the cohesion between the fibers is good.

[0004] Preferably, the adjusting roller includes an adjusting shaft, a pressing roller is sleeved on the adjusting shaft, and a plurality of puncture needles are provided on the pressing roller; adjusting rods are respectively provided on both sides of the adjusting shaft, one end of the adjusting rod is fixed relative to the fixed roller, and the other end of the adjusting rod is provided with an adjustable part to adjust the gap between the adjusting roller and the fixed roller.

[0005] Preferably, the adjustable part is a spring or an adjustable piston cylinder, and the piston rod of the adjustable piston cylinder extends out of the adjustable piston cylinder and is connected to the adjusting rod. The present application sets the adjustable part so that the gap between the two can be adjusted according to the feedback of the front part, thereby adjusting the shape of the tampon.

[0006] Preferably, the fixed roller comprises a fixed shaft, on which an abutment roller is sleeved, the puncture needle is arranged in a ring shape, and a needle groove for accommodating the puncture needle is provided at a position on the abutment roller corresponding to the puncture needle.

[0007] Preferably, the sliver guiding mechanism comprises a guide roller, under which a raw material barrel for containing the slivers is provided; the guide roller is provided with a material receiving opening on one side facing the feeding direction of the slivers, and the material receiving opening is arranged towards the adjustment part.

[0008] Preferably, the stretching section comprises a front stretching group and a rear stretching group, and the linear speed of the front stretching group is greater than the linear speed of the rear stretching group.

[0009] Preferably, the front stretching group includes two front axles turning in opposite directions, and a front roller is provided on the outer casing of the front axle; a plurality of friction parts are provided on the front roller, and the friction parts include a plurality of friction sections with friction grooves on the surface, and smooth sections are provided between the friction sections, and the friction sections and smooth sections of the two front axles are correspondingly and alternately arranged.

[0010] Preferably, the rear stretching group includes two rear axles turning in opposite directions, and a rear roller is disposed on the outer shell of the rear axle; a plurality of friction parts are disposed on the rear roller, and the friction parts include a plurality of friction sections with friction grooves on the surface, and smooth sections are disposed between the friction sections, and the friction sections and smooth sections of the two rear axles are arranged in a staggered manner; the friction sections and smooth sections of the front axle are arranged in equal length, and the length is a; the friction sections and smooth sections of the rear axle are arranged in equal length, and the length is b; a is not less than 2b and not more than 4b. The present application, through the design of the friction section and the smooth section, and the setting of the position, does not cause damage to the fiber during stretching. Although the front stretching group and the rear stretching group work together, in a single dimension, only one position exerts force, and no tearing condition occurs.

[0011] Preferably, the puncture needle is provided with a plurality of through holes, the puncture needle is hollow and connected to a supply pipe provided in the adjusting shaft, the supply pipe is connected to a rotary joint, the rotary joint includes an inner tube, the inner tube is connected to the supply pipe, a rotary bearing is arranged outside the inner tube, a shaft seal is provided on the rotary bearing facing the inner tube side, and an external connecting tube is provided on the end of the rotary bearing away from the inner tube.

[0012] Preferably, a plurality of ultraviolet lamps are provided on one side of the adjusting shaft along the cotton strip feeding side; slurry is supplied in the external connecting tube, and the slurry is a water-based slurry prepared from the following raw materials in parts by weight: starch: 10-20 parts; ethylene oxide: 3-5 parts; acrylic acid: 4-8 parts; sodium dodecylbenzene sulfonate: 0.8-1.5 parts; the raw materials include hydrogen peroxide, and the mass fraction of hydrogen peroxide is 0.4-1 parts; the slurry is prepared in the following manner: ethylene oxide and starch are mixed for reaction, and then hydrogen peroxide is added, and then acrylic acid and sodium dodecylbenzene sulfonate are added, and the slurry is obtained after mixing; the ethylene oxide and starch are mixed for reaction, and then hydrogen peroxide is added, and then acrylic acid and sodium dodecylbenzene sulfonate are added, and the slurry is obtained after mixing; The powder reacts in an environment where alcohol is used as a solution, and the alcohol solution contains 1wt% of sodium hydroxide; when reacting ethylene oxide and starch, first mix alcohol, starch and sodium hydroxide, then add ethylene oxide, then heat to 60-70°C, the reaction time is not less than 1h, then cool down and add hydrogen peroxide at the same time, then filter and vacuum dry to obtain a filter cake, and crush the filter cake to obtain the first intermediate product; the first intermediate product, acrylic acid, and sodium dodecylbenzene sulfonate are dissolved in water 2-3 times the above substances, and fully stirred to obtain a uniformly mixed emulsion, which is a slurry; the starch is amylopectin. The present application uses starch as the main body of the slurry, and the starch is modified by ethylene oxide so that it is conducive to fusion onto the cotton strip, and the fluffy state of the cotton strip is utilized so that the slurry can be immersed in the interior of the cotton fiber, and then the second layer of mesh structure except the cotton fiber is formed by acrylic acid, so that the immersed starch and acrylic acid are linked to each other, so that the yarn obtained by using the cotton strip in the later stage has better physical properties.

[0013] This application can bring the following beneficial effects:

[0014] 1. The present application adopts a coordinated adjustment part and a stretching part, which can shape and stretch the sliver in sequence, so that the quality of the sliver finally obtained by merging can be controlled and the cohesion between the fibers is good;

[0015] 2. The present application adopts the design of the friction part and the smooth part, and the setting of the position, so that the fiber will not be damaged during stretching. Although the front stretching group and the rear stretching group work together, only one position exerts force in a single dimension, and generally no strong tearing condition will occur;

[0016] 3. The present application adopts starch as the main body of the slurry, and modifies the starch through ethylene oxide to facilitate its fusion onto the cotton strips. The fluffy state of the cotton strips is utilized so that the slurry can penetrate into the interior of the cotton fibers. Then, acrylic acid is used to form a second layer of mesh structure in addition to the cotton fibers, so that the immersed starch and acrylic acid are interconnected, thereby making the yarn obtained from the cotton strips in the later stage have better physical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A schematic diagram of this application;

[0019] Figure 2 for Figure 1 Side view of

[0020] Figure 3 It is a structural schematic diagram of the front stretching group;

[0021] Figure 4 It is a structural diagram of the adjustment part;

[0022] Figure 5 It is a structural schematic diagram of the rotary joint part. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the technical features of the present solution, the present application is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0024] As shown in the figure, in order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an exemplary manner in conjunction with the drawings of the specification.

[0025] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0030] In the first embodiment, if Figure 1-5As shown, it comprises a sliver guiding mechanism 1, a merging mechanism is arranged behind the sliver guiding mechanism 1, and a receiving chamber 2 is arranged behind the merging mechanism; the merging mechanism comprises an adjusting part 3 for adjusting the sliver, a stretching part 4 for stretching the sliver, and a merging part 5 for merging fabrics, which are arranged in sequence; the adjusting part 3 comprises a fixed roller 6 and an adjusting roller 7 arranged in cooperation with the fixed roller 6, and the sliver passes through the gap between the fixed roller 6 and the adjusting roller 7. The adjusting roller 7 comprises an adjusting shaft 8, a pressing roller 9 is sleeved on the adjusting shaft 8, and a plurality of puncture needles 10 are arranged on the pressing roller 9; adjusting rods 11 are arranged on both sides of the adjusting shaft 8, one end of the adjusting rod 11 is fixedly arranged relative to the fixed roller 6, and the other end of the adjusting rod 11 is provided with an adjustable part 12 to adjust the gap between the adjusting roller 7 and the fixed roller 6. The adjustable part 12 is a spring or an adjusting piston cylinder, and the piston rod of the adjusting piston cylinder extends out of the adjusting piston cylinder and is connected to the adjusting rod. The sliver guiding mechanism 1 comprises a guide roller 13, under which a raw material barrel 14 for containing slivers is provided; the guide roller 13 is provided with a receiving port 15 on one side facing the feeding direction of the slivers, and the receiving port 15 is arranged toward the adjusting part 3. The stretching part 4 comprises a front stretching group 16 and a rear stretching group 17, and the linear speed of the front stretching group 16 is greater than the linear speed of the rear stretching group 17. The front stretching group 16 comprises two front shafts 18 turning in opposite directions, and a front roller 19 is arranged on the outer cover of the front shaft 18; a plurality of friction parts are arranged on the front roller 19, and the friction parts comprise a plurality of friction sections 20 with friction grooves on the surface, and smooth sections 21 are arranged between the friction sections 20, and the friction sections 20 and the smooth sections 21 of the two front shafts 18 are arranged in a staggered manner. The rear stretching group 17 includes two rear axles turning in opposite directions, and a rear roller is arranged on the outer shell of the rear axle; a plurality of friction parts are arranged on the rear roller, and the friction parts include a plurality of friction sections 20 with friction grooves on the surface, and smooth sections 21 are arranged between the friction sections 20, and the friction sections 20 and the smooth sections 21 of the two rear axles are arranged in a staggered manner; the friction sections 20 and the smooth sections 21 of the front axle 18 are arranged with the same length, and the length is a; the friction sections 20 and the smooth sections 21 of the rear axle are arranged with the same length, and the length is b; a is not less than 2b and not more than 4b. The puncture needle 10 is provided with a plurality of through holes. The puncture needle 10 is hollow and connected to a supply pipe 22 provided in the adjusting shaft 8. The supply pipe 22 is connected to a rotary joint 23. The rotary joint includes an inner tube 24, which is connected to the supply pipe 22. A rotary bearing 25 is provided on the outer sleeve of the inner tube 24. A shaft seal 26 is provided on the side of the rotary bearing 25 facing the inner tube 24. An external connecting pipe 27 is provided on the end of the rotary bearing 25 facing away from the inner tube 24. A plurality of ultraviolet lamps 28 are provided on the side of the adjusting shaft 8 along the cotton strip feeding; the slurry is supplied in the external connecting pipe 27.

[0031] When in use, the sliver is placed in the raw material barrel 14, and then enters the adjustment section 3 through the guide roller 13 of the sliver guiding mechanism 1, passes through the gap between the fixed roller 6 and the adjustment roller, and then enters the stretching section 4, and is stretched at the non-uniform line speeds of the front stretching group 16 and the rear stretching group 17, and then enters the merging section 5. The merging section 5 can adopt a conventional combined recombination machine or a simple recombination machine, which has little effect on the quality of the final product.

[0032] In the second embodiment, based on the first embodiment, the effectiveness of the slurry unique to the present application is verified. Of course, the slurry of the present application can also be replaced by other conventional cotton product slurries:

[0033] This application adopts the whole process of preparing yarn from raw cotton, and characterizes the role that the raw materials of the formula of this application can play by characterizing the strength changes of the yarn. Unless otherwise specified, the parameters used in each process are the same.

[0034] Cotton yarn is prepared as follows:

[0035] 1. Cotton cleaning: clean the impurities in the cotton. Before the cotton bales enter the cotton cleaning machine, open the cotton bales for preliminary cleaning to remove obvious impurities and foreign objects. The cotton cleaning machine loosens the cotton bales into a loose and free state, mixes and removes impurities, makes the cotton evenly mixed, and ensures the quality of the cotton yarn;

[0036] 2. Carding: Carding the raw cotton into single fibers to increase the length and orientation of the cotton fibers, and then carding them into strips for subsequent drafting and other processes. The carding process can also further remove the fiber defects such as cotton knots, impurities, and short fibers that have not been removed by the cleaning process, help the fibers to be fully mixed, and improve the uniformity. After the cotton is carded into a cotton roll with a certain weight, length, uniform thickness, and good appearance, it is drafted into a cotton strip that meets the requirements. The drafting process will pull the cotton strips to a certain thickness and improve the parallel straightness of the fibers;

[0037] 3. Drawing: Improve the unevenness of long cotton strips, including four steps: combining, drawing, mixing, and slivering. After combining 6 cotton strips, stretch and thin them to a specified weight to further improve the straightness and parallelism of the fibers. Use combining and drawing to further evenly mix the fibers, mix them on the drawing machine, make them into well-formed coiled strips, and place them in the cotton strip barrel in sequence for subsequent operations; drawing is performed using the device described in this application;

[0038] During the drawing process, the beating operation is carried out. The beating process is as follows:

[0039] 3.1 First, ethanol, starch and sodium hydroxide are mixed, and then ethylene oxide is added, and then the temperature is raised to the first temperature, and the reaction time is not less than 1 hour, and then the temperature is lowered and hydrogen peroxide is added at the same time, and then suction filtration and vacuum drying are performed to obtain a filter cake, and the filter cake is crushed to obtain a first intermediate product;

[0040] 3.2 Dissolve the first intermediate product, acrylic acid and sodium dodecylbenzene sulfonate in water with a volume of about 2.5 times that of the above substances, and stir thoroughly to obtain a uniformly mixed emulsion;

[0041] 3.3 After the slurry is applied to the cotton strip, it is irradiated with ultraviolet light for no less than 30 seconds, with an illumination of no less than 200 μW / cm 2 The specific components and operating conditions are shown in Table 1 and Table 2.

[0042] Table 1:

[0043]

[0044] Table 2:

[0045]

[0046] 4. Roving preparation: including drafting and twisting. Drafting will evenly stretch and thin the sliver, and make the fibers further straight and parallel. Then, proper twisting will be performed to make the sliver have a certain strength, so as to facilitate the roving winding and unwinding on the spinning machine in the subsequent process. The coarse sand is finally set to a quantitative value of 3g / 10m for molding;

[0047] 5. Preparation of spun yarn: To obtain yarn with specified fineness and strength, it mainly includes drafting, twisting, winding and forming. Drafting will pull the coarse yarn to the required fineness, make the fibers straight and parallel, and add a certain twist to the yarn to enhance the strength of the spun yarn. The spun yarn obtained after drafting and twisting is wound on the bobbin to make a tube of a certain size and shape, which is convenient for handling and post-processing. The spun yarn adopts compact siro spinning, and the post-draft multiple is 1.2.

[0048] 6. Performance measurement: The single yarn breaking strength of the yarn was measured and entered into Table 3.

[0049] Table 3:

[0050]

[0051] It can be seen that the effect of amylopectin is relatively good, which is presumably due to its relatively multi-branched structure, which enables it to play a greater role in forming a second network in the entire network other than cotton fibers; acrylic acid plays a vital role, which can improve the strength of the final yarn to a certain extent, and has a certain specificity, and cannot be replaced by substances with the same functional groups.

[0052] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0053] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A sliver combining device, characterized in that: It comprises a sliver guiding mechanism, a merging mechanism is arranged behind the sliver guiding mechanism, and a receiving cavity is arranged behind the merging mechanism; the merging mechanism comprises an adjusting part for adjusting the sliver, a stretching part for stretching the sliver, and a merging part for merging fabrics, which are arranged in sequence; the adjusting part comprises a fixed roller and an adjusting roller arranged in cooperation with the fixed roller, and the sliver passes through a gap between the fixed roller and the adjusting roller; The adjusting roller comprises an adjusting shaft, a pressing roller is sleeved on the adjusting shaft, and a plurality of puncture needles are arranged on the pressing roller; an adjusting rod is arranged on both sides of the adjusting shaft, one end of the adjusting rod is fixedly arranged relative to the fixed roller, and the other end of the adjusting rod is provided with an adjustable part to adjust the gap between the adjusting roller and the fixed roller; The puncture needle is provided with a plurality of through holes, the puncture needle is hollow and connected with a supply pipeline provided in the adjustment shaft, the supply pipeline is connected with a rotary joint, the rotary joint includes an inner tube, the inner tube is connected with the supply pipeline, a rotary bearing is arranged outside the inner tube, a shaft seal is arranged on the side of the rotary bearing facing the inner tube, and an external connecting pipe is arranged on the end of the rotary bearing away from the inner tube; A plurality of ultraviolet lamps are arranged on one side of the adjusting shaft along the cotton strip feeding; the slurry is supplied in the external connecting tube, the slurry is a water-based slurry, and is prepared from the following raw materials in parts by weight: starch: 10-20 parts; ethylene oxide: 3-5 parts; acrylic acid: 4-8 parts; sodium dodecylbenzene sulfonate: 0.8-1.5 parts; the raw materials include hydrogen peroxide, and the mass fraction of hydrogen peroxide is 0.4-1 parts; the slurry is prepared in the following manner: ethylene oxide and starch are mixed for reaction, and then hydrogen peroxide is added, and then acrylic acid and sodium dodecylbenzene sulfonate are added, and the slurry is obtained after mixing; the ethylene oxide and starch are mixed in The reaction is carried out in an environment where alcohol is used as a solution, and the alcohol solution contains 1wt% of sodium hydroxide; when reacting ethylene oxide and starch, alcohol, starch and sodium hydroxide are first mixed, and then ethylene oxide is added, and then the temperature is raised to 60-70°C, and the reaction time is not less than 1h, and then the temperature is lowered and hydrogen peroxide is added at the same time, and then suction filtration and vacuum drying are performed to obtain a filter cake, and the filter cake is crushed to obtain a first intermediate product; the first intermediate product, acrylic acid, and sodium dodecylbenzene sulfonate are dissolved in water 2-3 times the amount of the above substances, and fully stirred to obtain a uniformly mixed emulsion, which is a slurry; the starch is amylopectin; The fixed roller comprises a fixed shaft, on which an abutting roller is sleeved, the puncture needle is arranged in a ring shape, and a needle groove for accommodating the puncture needle is arranged at a position corresponding to the puncture needle on the abutting roller.

2. A sliver combining device according to claim 1, characterized in that: The adjustable part is a spring or an adjusting piston cylinder, and the piston rod of the adjusting piston cylinder extends out of the adjusting piston cylinder and is connected to the adjusting rod.

3. A sliver combining device according to claim 1, characterized in that: The sliver guiding mechanism comprises a guide roller, under which a raw material barrel for containing the slivers is arranged; a material receiving opening is arranged on one side of the guide roller facing the feeding direction of the slivers, and the material receiving opening is arranged towards the adjusting part.

4. A sliver combining device according to claim 1, characterized in that: The stretching section comprises a front stretching group and a rear stretching group, and a linear speed of the front stretching group is greater than a linear speed of the rear stretching group.

5. A sliver combining device according to claim 4, characterized in that: The front stretching group includes two front axles turning in opposite directions, with front rollers arranged on the outer sleeves of the front axles; a plurality of friction parts are arranged on the front rollers, the friction parts include a plurality of friction sections with friction grooves on the surfaces, smooth sections are arranged between the friction sections, and the friction sections and smooth sections of the two front axles are arranged in a staggered manner accordingly.

6. A sliver combining device according to claim 5, characterized in that: The rear stretching group includes two rear axles turning in opposite directions, and a rear roller is arranged on the outer shell of the rear axle; a plurality of friction parts are arranged on the rear roller, and the friction parts include a plurality of friction sections with friction grooves on the surface, and smooth sections are arranged between the friction sections, and the friction sections and smooth sections of the two rear axles are arranged in a staggered manner correspondingly; the friction section and smooth section of the front axle are arranged with the same length, and the length is a; the friction section and smooth section of the rear axle are arranged with the same length, and the length is b; a is not less than 2b and not more than 4b.

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