CN107083571B - Device and method for extracting ultrashort cow leather fibers from cow leather leftover materials - Google Patents
Device and method for extracting ultrashort cow leather fibers from cow leather leftover materials Download PDFInfo
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- CN107083571B CN107083571B CN201710445214.3A CN201710445214A CN107083571B CN 107083571 B CN107083571 B CN 107083571B CN 201710445214 A CN201710445214 A CN 201710445214A CN 107083571 B CN107083571 B CN 107083571B
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- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
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Abstract
The invention relates to a device and a method for extracting ultrashort cow leather fiber from cow leather leftover, the device comprises a cow leather leftover polishing device and a cow leather fiber stripping mechanism, wherein the polishing device comprises a local air suction dust cage, a fine grinding roller, a coarse grinding roller, a splitting licker-in roller, a heavy pressing roller, a middle pressing roller, a light pressing roller, a conveying curtain of cow leather leftover, a conveying curtain driving disc and the like, a small hole is formed on the surface of the local air suction dust cage to form an air suction area, the cow leather leftover is conveyed to the air suction area of the local air suction dust cage from the conveying curtain after being acted by the light, middle and heavy three pressing rollers in the conveying process of the conveying curtain to be sucked, and is sequentially polished step by the splitting licker-in roller, the coarse grinding roller and the fine grinding roller, the cow leather fiber stripping mechanism is a comb needle beating hand cow leather fiber stripping mechanism, the cow leather leftover after being polished and kneaded is stripped by a comb needle beating hand to obtain ultrashort cow leather fiber, the device and the method are safe and environment-friendly, no waste liquid is generated, and the utilization rate of the cow leather leftover materials and waste materials is high.
Description
Technical Field
The invention relates to the technical field of leather fibers, in particular to a device and a method for extracting ultrashort cow leather fibers from cow leather leftover materials.
Background
With the improvement of the living standard of modern people, leather products are attractive, durable and well favored by wide consumers, clothes, shoes, hats, furniture, bags, automobile decoration materials and the like made of leather have a large share in the market, the demand for real leather materials is increased greatly at home and abroad, the real leather materials have the advantages of good air permeability, water absorbability, elasticity, good hand feeling and the like, but the cost is high, a large amount of leftover materials generated in the production process of the leather products are not fully recycled, the cowhide leftover materials are inevitable wastes in the generation process of the cowhide products, the cowhide is mainly formed by mutually weaving and mutually winding bundle type collagen fibers, the reuse of the leather leftover materials such as the real cowhide is often required to be treated, but the existing method for reprocessing the leather leftover materials has a plurality of defects and shortcomings.
The invention discloses a method for preparing a cowhide fiber yarn from cowhide leftover materials, which comprises the steps of sequentially screening, color separation, impurity removal, puffing, softening, extruding, repeatedly soaking and extruding, hammering and napping, after-finishing, loosening and drying to obtain the cowhide fiber with the length of 15-50mm and the fineness of 0.5D-2.2D, and sequentially carding, drawing and spinning the dried cowhide fiber to obtain the cowhide fiber yarn. In the process of extracting the fiber, a chemical soaking process is needed, 5-15 kg of penetrating agent (sodium sulfosuccinate, sodium salt of oleoyl amino acid or linear fatty alcohol-polyoxyethylene ether and the like), 3-13 kg of swelling agent (a compound of aromatic hydrocarbon and higher fatty alcohol-polyoxyethylene ether or a compound of phenols and higher fatty alcohol-polyoxyethylene ether) and 0.5-3 kg of sodium hydroxide are contained in each 100 kg of treatment water solution, and multiple soaking is needed. Such treatment processes are complex and increase the liquid waste discharge, which is difficult to meet the environmental requirements.
Chinese patent application (200410034435.4) discloses an animal leather collagen yarn and a production method thereof, the core technology of the yarn is mainly to mix fiber raw materials with different weight proportions, the proportion of animal leather collagen fiber is emphasized to be 1-100%, the textile fiber is 0-99%, and the mechanical performance of the resultant yarn of the cow leather fiber can be improved by blending. The patent only refers to the size of the yarn blending ratio in a general way, does not explain the specifications of fibers such as length, fineness and the like, also generates waste liquid after soaking, washing and the like of leather raw materials before defibering, and is also not beneficial to environmental protection.
The Chinese patent application (201410767182.5) discloses a processing method of cow leather fiber, which comprises three fiber opening processes, wherein the method comprises the steps of pretreating cow leather leftover materials to enable the water content to reach 60-80%, opening fibers for the first time, cutting materials in a sieve plate into small cow leather pieces by adopting a high-speed rotating blade, carrying out air separation and slag removal to obtain small cow leather pieces with uniform size and square shape of 1cm multiplied by 1cm, and finally obtaining cow leather fiber with the length of 3-7mm by carrying out the second and third fiber opening and air separation and slag removal; chinese invention patent (201510318230.7) discloses a dry-wet combined web-forming composite process, wherein clean pure cowhide leftover materials (natural without additives) are ground into cowhide fibers by a fiber opening process before web forming, the fiber length is controlled to be 2-8mm, although both patent documents disclose that the cowhide leftover materials are used for processing the cowhide fibers within 2-10mm, the two patent documents do not relate to a specific polishing or processing mode of the cowhide fibers and a method for spinning the ultrashort cowhide fibers.
Chinese patent (CN203021703U) discloses an underwater leather material defibrator, which comprises a water storage tank and a cylinder card clothing roller for suspending broken leather materials in water, wherein three working rollers are horizontally arranged and wrap on one side of the upper part of the outer surface of the cylinder card clothing roller, fins or a bush-hook are arranged on the outer surfaces of the three working rollers, the leather materials are immersed in water in the patent application, the leather materials in water are transferred between the working rollers which roll relatively through the cylinder card clothing roller, and the leather materials are hooked by the triangular fins arranged on the surfaces of the working rollers and then torn into fibers.
Japanese patent (sho 62-21808A) discloses an apparatus for softening and opening leather fibers, which includes a plurality of pairs of rollers arranged one above another, wherein uneven grooves are formed in the roller axial direction on upper and lower rollers or on lower rollers on upper and lower contact surfaces of some of the pairs of rollers.
Chinese patent (CN2905832Y) discloses an animal leather fiber opening device, which comprises a frame, a feeding flat curtain is arranged at the front part of the frame, a dust cage is arranged on the frame, a fiber opening licker-in is arranged between the dust cage and the feeding flat curtain, a licker-in bushing is arranged at the lower part of the licker-in, the upper part of the licker-in bushing is an arc surface matched with the licker-in, a feeding roller is arranged at the front part of the licker-in, a feeding plate is arranged below the feeding roller, the upper surface of the feeding plate is an arc surface matched with the feeding roller, a pair of feeding rollers which are arranged up and down are arranged between the feeding roller and the feeding flat curtain, and a discharging beater is arranged at the rear part of the dust cage, the device can process animal skin fibers with the length of 10-45mm, but the device also needs to carry out the pretreatment of structural expansion on the animal skin before processing, and the device mainly depends on the high-speed rotation of the licker-in to open the leather into fibers, only part of the fibers which are absorbed in the dust cage and finally taken and stripped off by the beater, and part of small animal skins which are not split fall into the bottom drain under the licker-in roller, and the splitting utilization rate of the cowhide leftover materials is low.
According to the prior art mentioned above, it is known that: the cowhide fiber is obtained by a chemical method, and although longer fiber can be obtained, the treatment method is hard to meet the environmental protection requirement and is strictly limited in the actual production; the cowhide fiber base cloth is obtained in a non-woven mode, and although the requirement on the fiber length is reduced to a certain degree, the longitudinal and transverse strength of the cowhide fiber base cloth cannot meet the requirement of a finished product; the cowhide fiber blended yarn is prepared by the fiber mixing technology, although the mechanical property of the resultant yarn of the cowhide fiber can be improved, related documents only refer to the loose fiber mixing proportion broadly, the description of the practical technical content is fuzzy, and the cowhide fiber blended yarn generates waste liquid after being soaked in solution, washed by water and the like before defibering the leather raw material, which is not beneficial to environmental protection; most of the existing devices or equipment for extracting leather fibers from cowhide or other animal skin leftover materials are used for soaking the leather materials in chemical solution before fiber splitting to ensure that the leather materials are expanded or split in liquid, waste liquid is easy to generate, and the device or equipment is not beneficial to environmental protection.
Disclosure of Invention
In order to overcome the defects and shortcomings of a processing method for extracting the cowhide fiber from the cowhide leftover materials in the prior art, the invention provides a device and a method for extracting the ultrashort cowhide fiber by efficiently utilizing the cowhide leftover materials by adopting a safe and environment-friendly pure physical method. The invention provides the following technical scheme:
a device for extracting ultrashort cow leather fibers from cow leather leftover materials is characterized by comprising a cow leather leftover material grinding device and a cow leather fiber stripping mechanism, wherein the grinding device comprises a local air suction dust cage, a fine grinding roller, a coarse grinding roller, a skin breaking licker-in roller, a heavy pressing roller, a middle pressing roller, a light pressing roller, a conveying curtain of cow leather leftover materials, a conveying curtain driving disc and a supporting vertical face of the conveying curtain, small holes are formed in the surface of the local air suction dust cage locally to form an air suction area, the skin breaking licker-in roller, the coarse grinding roller and the fine grinding roller are sequentially arranged in the air suction area, the conveying curtain of the cow leather leftover materials is driven by the conveying curtain driving disc to convey the cow leather leftover materials which are respectively rolled by the light pressing roller, the middle pressing roller and the heavy pressing roller to the local air suction cage, the air suction area forms negative pressure through an air suction device in the local air suction dust cage, and sucks away scraps generated by surface grinding while holding the cow leather leftover materials, the sucked leather leftover materials are sequentially subjected to leather breaking licker-in rollers, coarse grinding rollers and fine grinding rollers to carry out step-by-step grinding on the front surfaces of the leather leftover materials; the cow leather fiber stripping mechanism is a comb needle beater cow leather fiber stripping mechanism.
Furthermore, the mechanism for stripping the cowhide fiber by the carding wire beater comprises a carding wire beater, an upper holding roller, a lower holding roller, an upper feeding roller, a lower feeding roller, a transmission roller and an upper belt sleeved between the upper holding roller and the upper feeding roller and a lower belt sleeved between the lower holding roller and the transmission roller respectively, and the cowhide leftover materials after being polished and kneaded are conveyed between the upper feeding roller and the lower feeding roller through the lower belt and then conveyed to a position between the upper holding roller and the lower holding roller through the belts to be gradually stripped by the carding wire beater.
Further preferably, the local dust cage that induced drafts has the transport curtain track on, carry the curtain to be the annular, its annular one end is installed on carrying the curtain track, and another pot head is established on carrying the curtain driving disc, along the direction of motion of carrying the curtain, light compression roller, well compression roller and heavy compression roller adjacent establish in proper order and induced draft the upper surface of the last curtain of the transport curtain between dust cage and the transport curtain driving disc locally, it establishes to support the facade the lower surface of curtain is gone up to the corresponding transport curtain of light compression roller, well compression roller and heavy compression roller.
Still further preferably, pressure rollers are provided at upper and lower sides of the upper and lower curtains of the conveying curtain, respectively, at the contact surface of the conveying curtain with the partial suction cage, and the conveying curtain is kept horizontal by the action of the pressure rollers.
Still more preferably, the rotation speed of the carding beater is 320-.
Still further preferably, the conveying curtain transmission disc rotates anticlockwise, and the light pressing roller, the middle pressing roller and the heavy pressing roller all rotate clockwise, and the surface linear velocity of the light pressing roller, the middle pressing roller and the heavy pressing roller is the same as the surface linear velocity of the conveying curtain.
Still further preferably, the pressure rollers on both the upper and lower sides rotate clockwise at the same linear surface speed as the conveyor curtain.
Still more preferably, the skin-breaking licker-in rotates clockwise, and the ratio of the surface linear velocity of the skin-breaking licker-in to the surface linear velocity of the conveying curtain is 1.05-1.1; the coarse grinding roller rotates clockwise, and the ratio of the surface linear velocity of the coarse grinding roller to the surface linear velocity of the conveying curtain is 1.5-1.8; the fine grinding roller rotates clockwise, and the ratio of the surface linear velocity of the fine grinding roller to the surface linear velocity of the conveying curtain is 3-4.
In addition, the invention also provides a method for extracting ultrashort cow leather fiber from cow leather leftover, which adopts the device for extracting ultrashort cow leather fiber from cow leather leftover to extract ultrashort cow leather fiber, and the specific method comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) polishing cowhide leftover materials, namely paving the cowhide leftover materials on a conveying curtain upwards in the front direction, enabling a conveying curtain transmission disc to rotate anticlockwise to drive the conveying curtain to move forwards, enabling the cowhide leftover materials to pass through a light compression roller, a middle compression roller and a heavy compression roller in sequence, enabling leather to be smooth and conformable under the action of the three compression rollers, then enabling the cowhide leftover materials to be conveyed from the conveying curtain to an air suction area of a local air suction dust cage through the upper compression roller, enabling the air suction area to form negative pressure through an air suction device inside the local air suction dust cage, sucking the cowhide leftover materials, sucking away scraps generated by surface polishing, and sequentially polishing the sucked cowhide leftover materials step by step through a leather breaking licker-in roller, a coarse grinding roller and a fine grinding roller;
step two: and (3) stripping cowhide fiber, namely polishing the cowhide leftover materials, then softening the leather in a reciprocating extrusion type kneading mode, then stripping the cowhide fiber by using the comb needle beater stripping mechanism to enable one end of the polished and kneaded cowhide leftover materials to be held, stripping the cowhide fiber by using the comb needle beater, wherein the rotating speed of the comb needle beater is 320 plus materials at 380 revolutions per minute, and obtaining the ultrashort cowhide fiber with the main length of 2-10 mm.
The invention has the following beneficial technical effects:
1) the device and the method for opening the cowhide leftover materials in the physical mechanical mode do not need to soak and expand the cowhide leftover materials, are safe and environment-friendly, do not produce waste liquid, pollute the environment, and have high utilization rate of the cowhide leftover materials and waste materials.
2) The cattle hide leftover material polishing device can extrude the cattle hide leftover materials with uneven surfaces in the storage process to be smooth and conformable through the light pressing roller, the middle pressing roller and the middle pressing roller, and innovatively improves the existing air suction dust cage to form the local air suction dust cage, so that the cattle hide leftover materials can be adsorbed in an air suction area of the local air suction dust cage to be sequentially polished step by step through the leather breaking licker-in roller, the rough grinding roller and the fine grinding roller, the leather breaking licker-in roller is arranged in front of the rough grinding roller, a leather surface layer with a compact surface layer can be firstly scratched to facilitate polishing of the rough grinding roller and the fine grinding roller, slipping is prevented, in addition, the polished cattle hide leftover materials can be conveyed to a dust cage non-air suction area along with the conveying curtain to be automatically unloaded and collected, the polishing device can adapt to the cattle hide leftover materials with different sizes, and the polishing efficiency is high.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a polishing device for polishing cowhide corners according to the present invention;
FIG. 2 is a schematic side view of an air suction dust cage of the polishing device configuration of the present invention;
FIG. 3 is a schematic structural view of a cowhide fiber stripping mechanism of the present invention;
description of the drawings: 1-local air suction dust cage, 1 a-air suction area, 2-fine grinding roller, 3-coarse grinding roller, 4-broken leather licker-in, 5-pressure roller, 6-support vertical surface, 7-heavy pressure roller, 8-middle pressure roller, 9-light pressure roller, 10-cowhide leftover material, 10 a-cowhide leftover material front surface, 11-conveying curtain driving disc, 12-conveying curtain and 122-conveying curtain track; 13-gill beater, 14-upper holding roller, 15-upper feeding roller, 16-lower holding roller, 17-lower feeding roller, 18-driving roller
Detailed Description
In order to clearly understand the technical solution of the present invention, the technical solution of the present invention will be further described in detail through the drawings and specific embodiments.
Example 1
As shown in figures 1-3, the invention relates to a device for extracting ultrashort cow leather fiber from cow leather leftover, which comprises a cow leather leftover grinding device and a cow leather fiber stripping mechanism, wherein the grinding device comprises a local air suction dust cage 1, a fine grinding roller 2, a rough grinding roller 3, a skin breaking licker-in roller 4, a pressure roller 5, a heavy pressing roller 7, a medium pressure roller 8, a light pressing roller 9, a cow leather leftover conveying curtain 12 and a conveying curtain driving disc 11, wherein the local surface of the local air suction dust cage 1 is partially provided with small holes to form an air suction area 1a (the small holes are not shown in the figure), the skin breaking licker-in roller 4, the rough grinding roller 3 and the fine grinding roller 2 are sequentially arranged in the air suction area, the cow leather leftover conveying curtain 12 is driven by the conveying curtain driving disc 11, the conveying curtain rail 122 is arranged on the local air suction cage 1, the conveying curtain 12 is annular, one end of the annular conveying curtain rail 122 is arranged on the conveying curtain rail 122, the other end is sleeved on a conveying curtain driving disc 11, along the movement direction of the conveying curtain, a light pressure roller 9, a medium pressure roller 8 and a heavy pressure roller 7 are sequentially and adjacently arranged on the upper surface of the upper curtain of the conveying curtain between the local air suction dust cage 1 and the conveying curtain driving disc 11, a support vertical surface 6 is arranged on the lower surface of the upper curtain of the light pressure roller 9, the medium pressure roller 8 and the heavy pressure roller 7 corresponding to the conveying curtain 12, pressure rollers 5 are respectively arranged on the upper side and the lower side of the upper curtain and the lower curtain of the conveying curtain at the contact surface of the conveying curtain 12 and the local air suction dust cage 1, the front surface 10a of the cowhide leftover materials is upwards laid on the conveying curtain 12 during polishing, the conveying curtain driving disc 11 rotates anticlockwise to drive the conveying curtain 12 to move forwards, the cowhide leftover materials sequentially pass through the three pressure rollers of the light pressure roller 9, the medium pressure roller 8 and the heavy pressure roller 7 to ensure that the cowhide leftover materials are smooth and conformable, and are not overlapped due to slippage in the conveying process, the three pressing rollers rotate clockwise, the surface linear velocity is the same as the surface linear velocity of the conveying curtain, the cowhide leftover materials 10 are conveyed to the local air suction dust cage 1 from the conveying curtain 12 through the pressing roller 5, the pressing roller 5 rotates clockwise, the surface linear velocity is the same as the surface linear velocity of the conveying curtain, the pressing roller and the conveying curtain driving disc form a horizontal line to ensure that the conveying curtain moves forwards along the horizontal line, and the cowhide leftover materials are more easily conveyed to the local air suction dust cage 1, the air suction area 1a forms negative pressure through an air suction device in the local air suction dust cage 1, the cowhide leftover materials 10 are sucked and simultaneously scraps generated by surface grinding are sucked, and the sucked cowhide leftover materials 10 are sequentially polished step by step through the leather breaking licker-in 4, the coarse grinding roller 3 and the fine grinding roller 2; the skin-breaking licker-in rotates clockwise, and the ratio of the surface linear velocity of the skin-breaking licker-in to the surface linear velocity of the conveying curtain is 1.05-1.1; the coarse grinding roller rotates clockwise, and the ratio of the surface linear velocity of the coarse grinding roller to the surface linear velocity of the conveying curtain is 1.5-1.8; the fine grinding roller rotates clockwise, and the ratio of the surface linear velocity of the fine grinding roller to the surface linear velocity of the conveying curtain is 3-4;
the cowhide fiber stripping mechanism is a carding beater fiber stripping mechanism, the carding beater fiber stripping mechanism comprises a carding beater 13, an upper holding roller 14, a lower holding roller 16, an upper feeding roller 15, a lower feeding roller 17, a transmission roller 18, an upper belt and a lower belt, the upper belt is sleeved between the upper holding roller 14 and the upper feeding roller 15, the lower belt is sleeved between the lower holding roller 16 and the transmission roller 18, the cowhide leftover materials 10 after polishing and rubbing are conveyed between the upper feeding roller 15 and the lower feeding roller 17 through the lower belt and then conveyed to the position between the upper holding roller 14 and the lower holding roller 16 through the belts to be held, the cowhide fibers are gradually stripped through the carding beater 13, the rotating speed of the carding beater is controlled to be 380 revolutions per minute, and the length of the main body of the stripped ultrashort cowhide fibers is 2-10 mm.
Example 2
The present embodiment relates to an apparatus for extracting ultrashort kraft fiber from kraft scraps as described in embodiment 1, wherein the method for extracting ultrashort kraft fiber comprises the following steps:
the method comprises the following steps: grinding the cowhide leftover materials, namely paving the front 10a of the cowhide leftover materials upwards on the conveying curtain 12, enabling the conveying curtain driving disc 11 to rotate anticlockwise to drive the conveying curtain 12 to move forwards, enabling the cowhide leftover materials to sequentially pass through a light pressure roller 9, a medium pressure roller 8 and a heavy pressure roller 7, and enabling leather to be smooth and fitted under the action of three pressing rollers, then enabling the cowhide leftover materials to be conveyed from the conveying curtain 12 to an air suction area 1a of the local air suction dust cage 1 through an upper pressure roller 5, enabling the air suction area to form negative pressure through an air suction device in the local air suction dust cage, sucking the cowhide leftover materials and sucking away scraps generated by surface grinding at the same time, and enabling the sucked cowhide leftover materials to be sequentially subjected to grinding step by step through a leather breaking licker-in roller 4, a coarse grinding roller 3 and a fine grinding roller 2;
step two: and (3) stripping cowhide fiber, namely polishing the cowhide leftover materials, then softening the leather in a reciprocating extrusion type kneading mode, then stripping the cowhide fiber by using the comb needle beater stripping mechanism to enable one end of the polished and kneaded cowhide leftover materials to be held, and stripping the cowhide fiber by using a comb needle beater 13, wherein the rotating speed of the comb needle beater is 320 plus materials at 380 r/min, so that the ultrashort cowhide fiber with the main length of 2-10mm is obtained.
The invention extracts the cowhide fiber from the cowhide leftover material by a pure physical mechanical mode, although the produced cowhide fiber is the ultrashort cowhide fiber, the inventor of the application successfully spins the ultrashort cowhide fiber into the cowhide blended core-spun yarn through a large amount of research experiments, the blended core-spun yarn or the folded yarn thereof is weaved into the leather base cloth, and then the leather base cloth is hot-pressed, the leather base cloth has good tensile property and tearing strength, compared with the non-woven leather base cloth, the leather base cloth has better uniform stability of longitudinal and transverse strength, and the warp and weft strength of the leather base cloth reaches more than 500 CN.
Finally, it should be noted that the above mentioned embodiments are only specific or preferred embodiments of the present invention, and not intended to limit the scope of the present invention, and all the equivalent structures or equivalent changes made by those skilled in the art using the description in the present document or directly or indirectly applied to other related technical fields are included in the protection scope of the present patent application.
Claims (9)
1. The utility model provides a draw ultrashort cow hide fibrous device of follow cow hide leftover bits, a serial communication port, the device includes that cow hide leftover bits grinding device and cow hide fibre shell and get the mechanism, grinding device includes local suction dust cage (1), fine grinding roller (2), corase grinding roller (3), broken skin licker-in (4), heavy compression roller (7), well compression roller (8), light compression roller (9), the conveying curtain (12) of cow hide leftover bits, conveying curtain driving disc (11) and conveying curtain's support facade (6), the local surface of suction dust cage (1) is opened there is the aperture to form regional (1a) that induced drafts, broken skin licker-in (4), coarse grinding roller (3), fine grinding roller (2) are established in proper order in regional (1a) of induced drafting, conveying curtain (12) of cow hide leftover bits are through conveying curtain driving disc (11) transmission for will pass through respectively light compression roller (9), The method comprises the following steps that cow leather leftover materials (10) rolled by a middle pressing roller (8) and a heavy pressing roller (7) are conveyed to a local air suction dust cage (1), negative pressure is formed in an air suction area (1a) through an air suction device in the local air suction dust cage (1), scraps generated by surface polishing are sucked away while the cow leather leftover materials (10) are sucked, and the sucked cow leather leftover materials (10) are sequentially subjected to step-by-step polishing on the front surfaces (10a) of the cow leather leftover materials through a leather breaking licker-in roller (4), a coarse grinding roller (3) and a fine grinding roller (2); the cow leather fiber stripping mechanism is a comb needle beater cow leather fiber stripping mechanism.
2. The device for extracting ultrashort kraft fiber from kraft scraps according to claim 1, wherein the mechanism for stripping kraft fiber by the carding beater comprises a carding beater (13), an upper holding roller (14), a lower holding roller (16), an upper feeding roller (15), a lower feeding roller (17), a driving roller (18), an upper belt sleeved between the upper holding roller (14) and the upper feeding roller (15), and a lower belt sleeved between the lower holding roller (16) and the driving roller (18), wherein the polished and kneaded kraft scraps (10) are conveyed between the upper feeding roller (15) and the lower feeding roller (17) through the lower belt, and then conveyed between the upper holding roller (14) and the lower holding roller (16) through the lower belt, and the kraft fiber is gradually stripped through the carding beater (13).
3. The device for extracting ultrashort cowhide fiber from cowhide leftover bits according to claim 1, wherein the local air suction dust cage (1) is provided with a conveying curtain rail (122), the conveying curtain (12) is annular, one end of the annular is installed on the conveying curtain rail (122), the other end of the annular is sleeved on a conveying curtain transmission disc (11), and along the moving direction of the conveying curtain, the light compression roller (9), the medium compression roller (8) and the heavy compression roller (7) are sequentially and adjacently arranged on the upper surface of the upper curtain of the conveying curtain between the local air suction dust cage (1) and the conveying curtain transmission disc (11), and the support vertical surface (6) is arranged on the lower surface of the upper curtain of the corresponding conveying curtain (12) of the light compression roller (9), the medium compression roller (8) and the heavy compression roller (7).
4. An apparatus for extracting ultrashort kraft fibers from kraft scraps according to any one of claims 1 to 3, wherein pressure rollers (5) are respectively provided at upper and lower sides of the upper and lower curtains of the conveying curtain (12) at the interface of the conveying curtain (12) with the local suction cage (1), and the function of the pressure rollers keeps the conveying curtain (12) horizontal.
5. The device for extracting ultrashort kraft fiber from kraft scraps as claimed in claim 2, wherein the rotation speed of the carding beater (13) is 320-380 r/min, and the length of the stripped ultrashort kraft fiber main body is 2-10 mm.
6. An apparatus for extracting ultrashort kraft fiber from kraft scraps according to any of claims 1 to 3, wherein the conveying curtain driving disc (11) rotates anticlockwise, the light pressing roller (9), the medium pressing roller (8) and the heavy pressing roller (7) all rotate clockwise, and the surface linear velocity is the same as that of the conveying curtain.
7. The apparatus of claim 4 wherein said pressure rollers on both upper and lower sides rotate clockwise at the same linear surface speed as the conveyor curtain.
8. An apparatus for extraction of ultrashort kraft fiber from kraft scraps according to any one of claims 1 to 3, characterized in that the crust breaking licker-in (4) rotates clockwise with a ratio of surface linear velocity to surface linear velocity of the conveying curtain of 1.05-1.1; the coarse grinding roller (3) rotates clockwise, and the ratio of the surface linear velocity of the coarse grinding roller to the surface linear velocity of the conveying curtain is 1.5-1.8; the fine grinding roller (2) rotates clockwise, and the ratio of the surface linear velocity of the fine grinding roller to the surface linear velocity of the conveying curtain is 3-4.
9. A method for extracting ultrashort cow leather fiber from cow leather leftover, which is characterized in that the device for extracting ultrashort cow leather fiber from cow leather leftover as claimed in any one of claims 1 to 8 is used for extracting ultrashort cow leather short fiber, and the specific method comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) polishing cowhide leftover materials, namely, paving the front surface (10a) of the cowhide leftover materials upwards on a conveying curtain (12), enabling a conveying curtain transmission disc (11) to rotate anticlockwise to drive the conveying curtain (12) to move forwards, enabling the cowhide leftover materials to sequentially pass through a light pressure roller (9), a medium pressure roller (8) and a heavy pressure roller (7), enabling leather to be flat and smooth and to be fitted under the action of the three pressure rollers, then enabling the cowhide leftover materials to be transmitted to an air suction area (1a) of a local air suction dust cage (1) from the conveying curtain (12) through an upper pressure roller (5), enabling the air suction area to form negative pressure through an air suction device inside the local air suction dust cage, sucking the cowhide leftover materials and simultaneously sucking scraps generated by surface polishing, and enabling the sucked cowhide leftover materials to be sequentially subjected to polishing step by step through a leather breaking licker-up roller (4), a coarse grinding roller (3) and a fine grinding roller (2);
step two: and (3) stripping the cowhide leftover materials, namely polishing the cowhide leftover materials, then softening the leather by adopting a reciprocating extrusion type kneading mode, then adopting the comb needle beater fiber stripping mechanism to enable one end of the polished and kneaded cowhide leftover materials to be held, and gradually stripping the cowhide fibers by using a comb needle beater (13), wherein the rotating speed of the comb needle beater is 320 and 380 revolutions per minute, so that the ultrashort cowhide fibers with the main body length of 2-10mm are obtained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710445214.3A CN107083571B (en) | 2017-06-15 | 2017-06-15 | Device and method for extracting ultrashort cow leather fibers from cow leather leftover materials |
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| CN201710445214.3A CN107083571B (en) | 2017-06-15 | 2017-06-15 | Device and method for extracting ultrashort cow leather fibers from cow leather leftover materials |
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