阅读说明：本技术 纤维吸管的制造方法及其设备 (Method and apparatus for manufacturing fibre suction pipe ) 是由 王正雄 于 2019-02-01 设计创作，主要内容包括：本发明公开了一种纤维吸管的制造方法及其设备,所述制造方法是利用粉碎机将如竹子等植物原料碎化后干燥,再用磨粉机将植物原料磨成细粉状的纤维粉料,进而将纤维粉料、耐温淀粉及植物胶以一定比例搅拌混炼为综合原料；再将综合原料置于一造粒装置内成型为粒状的纤维粒原料,该纤维粒原料利用离心方式降低含水率后,再置于一吹管机中进行吹管作业,以成型管状结构的管材,再将管材通过一冷却机构进行冷却定型后,利用一刀具依预设长度切断成纤维吸管成品；藉此能制成生物可分解的纤维吸管。(The invention discloses a method for manufacturing a fiber straw and equipment thereof, wherein the method comprises the steps of crushing plant raw materials such as bamboos and the like by a crusher, drying the crushed plant raw materials, grinding the plant raw materials into fine powder fiber powder by a grinder, and stirring and mixing the fiber powder, temperature-resistant starch and plant gum into comprehensive raw materials according to a certain proportion; placing the comprehensive raw material in a granulating device to form granular fiber particle raw materials, reducing the water content of the fiber particle raw materials in a centrifugal mode, then placing the fiber particle raw materials in a tube blowing machine to perform tube blowing operation so as to form tubular pipes, cooling and shaping the tubular pipes through a cooling mechanism, and cutting the tubular pipes into finished fiber suction pipes according to preset lengths by using a cutter; thereby the biodegradable fiber straw can be made.)

1. The method for manufacturing the fiber straw is characterized by comprising the following steps

A. Crushing, namely obtaining plant raw materials, and crushing the plant raw materials by using a crusher;

B. drying, namely drying the crushed plant raw materials to reduce the contained water;

C. grinding and refining, namely grinding the plant raw materials into fine powdery fiber powder by using a grinder;

D. mixing, namely stirring and mixing 37-70% of fiber powder, 20-35% of temperature-resistant starch, 1-3% of water and 9-25% of vegetable gum into a comprehensive raw material according to weight percentage;

E. granulating, namely placing the comprehensive raw material in a granulating device, carrying out sectional heating conveying, and then forming the comprehensive raw material into a granular fiber particle raw material by using a forming die head;

F. drying the fiber particles, namely drying the fiber particle raw material to ensure that the water content is at least lower than 0.1%;

G. blowing pipe forming, namely putting the dried fiber particle raw material into a pipe blowing machine, conveying the dried fiber particle raw material to a pipe blowing mechanism by utilizing sectional heating to perform blowing pipe operation, and cooling and shaping the pipe with a tubular structure by a cooling mechanism after forming;

H. and cutting the tube, and cutting the cooled fiber tube into a finished fiber suction tube by using a cutter according to a preset length.

2. The method for manufacturing a fiber straw according to claim 1, wherein the plant material is ground into fiber powder in step C, and then heat-resistant treated to increase the heat resistance of the fiber powder by high-temperature steaming.

3. The method for manufacturing a fiber straw according to claim 1, wherein the plant material is ground into a fiber powder of 400 mesh or more in the step C.

4. The method for manufacturing a fiber suction tube according to claim 1, wherein a feeding port is provided above one end of the granulating device, the forming die head is provided at the other end, and the first conveying shaft is used to convey the composite raw material inside the granulating device, the front end of the first conveying shaft is located below the feeding port, the rear end of the first conveying shaft is connected with the forming die head for conveying the composite raw material to the forming die head, and the first conveying shaft is divided into four sections, the temperature of each section is controlled by different temperature controllers, the first section is set to be 140 to 170 ℃, the second section is set to be 150 to 175 ℃, the third section is set to be 160 to 180 ℃, the fourth section is set to be 165 to 185 ℃, and the temperature of the forming die head is also controlled to be 170 to 190 ℃, so as to achieve the purpose of heating and conveying in sections during granulating.

5. The method for manufacturing a fiber straw according to claim 1, wherein the step F is performed by removing water contained in the fiber pellet material by centrifugal force using a centrifuge.

6. The method for manufacturing the fiber suction pipe according to claim 1, wherein a feed inlet is provided above one end of the pipe blowing machine, the blow pipe mechanism is provided at the other end of the pipe blowing machine, a second conveying shaft is provided between the lower part of the feed inlet and the blow pipe mechanism, the second conveying shaft is used for conveying the fiber pellet raw material to the blow pipe mechanism, the second conveying shaft can be divided into four sections, the temperature of each section is controlled by different temperature controllers, the temperature of the first section is set to be 140-170 ℃, the temperature of the second section is set to be 150-175 ℃, the temperature of the third section is set to be 160-180 ℃, the temperature of the fourth section is set to be 165-185 ℃, and the temperature of the forming die head is also controlled to be 170-190 ℃, so as to achieve the purpose of heating and conveying in sections.

7. The method for manufacturing a fiber suction pipe according to claim 1, wherein the cooling mechanism is a water tank, the cutter is disposed outside a cutting machine, the cutting machine has a driving assembly formed by a plurality of rollers disposed opposite to each other, the driving assembly is configured to clamp the formed pipe by the rollers, the driving assembly is configured to move the pipe when rotating, the pipe formed by the blowing pipe is driven to pass through the cooling mechanism, and then the cutter is configured to cut the pipe into the finished fiber suction pipe.

8. An apparatus for manufacturing a fiber straw, comprising:

a pulverizer for pulverizing the plant material;

a pulverizer for pulverizing the pulverized plant material into fine powder;

a stirrer, which is used for stirring and mixing fiber powder, temperature-resistant starch and vegetable gum into comprehensive raw materials;

a granulating device, one end of which is provided with a feeding port and the other end is provided with a forming die head, the interior of the granulating device utilizes a first conveying shaft to convey the comprehensive raw material, the front end of the first conveying shaft is positioned below the feeding port, and the tail end of the first conveying shaft is connected with the forming die head, so that the comprehensive raw material is conveyed to the forming die head, and the forming die head is utilized to form the comprehensive raw material into granular fiber particle raw material;

a centrifugal machine, which is used for placing the fiber particle raw material into a centrifugal machine and reducing the moisture content of the fiber particle raw material by utilizing a centrifugal force rotation mode;

a pipe blowing machine, wherein a feed inlet is arranged above one end of the pipe blowing machine, a pipe blowing mechanism is arranged at the other end of the pipe blowing machine, a second conveying shaft is arranged between the lower part of the feed inlet and the pipe blowing mechanism, the second conveying shaft is used for conveying the fiber particle raw materials to the pipe blowing mechanism, and the fiber particle raw materials are blown and formed into a tubular pipe through the pipe blowing mechanism;

a cooling mechanism for cooling and shaping the just-formed hollow pipe;

and the cutting machine is arranged on one side adjacent to the cooling mechanism, a driving assembly capable of clamping the pipe to move is arranged on the outer side of the cutting machine corresponding to the cooling mechanism, a cutter is arranged on the other outer side through which the pipe moves, the driving assembly drives the pipe to move when rotating, the pipe formed by the blowing pipe is driven to pass through the cooling mechanism, and then the cutter is used for cutting the pipe into a finished fiber suction pipe.

9. The apparatus for manufacturing a fiber straw according to claim 8, wherein the first transporting shaft is divided into four sections, each section has a temperature controlled by a different temperature controller, the temperature of the first section is set to 140-170 ℃, the temperature of the second section is set to 150-175 ℃, the temperature of the third section is set to 160-180 ℃, the temperature of the fourth section is set to 165-185 ℃, and the temperature of the forming die head is also controlled to 170-190 ℃ for the purpose of heating and transporting in sections during granulation.

10. The apparatus for manufacturing a fiber straw according to claim 8, wherein the second transporting shaft is divided into four sections, each section has a temperature difference controlled by different temperature controllers, and the temperature of the first section corresponding to the feeding port is set to 140-170 ℃, the temperature of the second section is set to 150-175 ℃, the temperature of the third section is set to 160-180 ℃, the temperature of the fourth section is set to 165-185 ℃, and the temperature of the forming die head is also controlled to 170-190 ℃, so as to achieve the purpose of segmented heating transportation.

Technical Field

The invention relates to a method for manufacturing a straw, in particular to a method for manufacturing a fiber straw by using plant fibers as raw materials and equipment thereof.

Background

At present, the number of straws consumed by the global population daily is extremely staggering due to the extremely widespread use of the modern society in both packaged beverages and field brewed beverages as the living standard of the materials is improved. At present, most of the used straws are still mainly plastic straws, although the volume of each plastic straw is not large, the quantity of the straws accumulated and used every day is not comparable with that of other plastic tableware, and because the volume of the plastic straws is not large, the straws are not easy to treat even after being recycled, so that huge quantities of straw wastes are generated every day in the world, the huge quantities of the plastic wastes not only can cause harm to the environment, but also can increase a large amount of treatment cost, and in addition, the straws filled with the plastic still have the problems of plasticizer residues or heat plastic precipitation of hot drinks and foods, and are harmful to the health of human bodies. In order to solve the problems of the traditional plastic straws, a biodegradable straw is made of Polylactic acid (PLA), wherein the PLA is a biodegradable high polymer material and is formed by fermenting glucose in plant fibers into lactic acid and polymerizing the lactic acid, and the common plant fibers mainly comprise corn and wheat. Since polylactic acid polymers can be decomposed into carbon dioxide and water by microorganisms in natural landfill environments, they can be utilized as raw materials for replacing conventional plastics. However, polylactic acid itself has characteristics of high rigidity and insufficient flexibility, is easily broken when being squeezed, and is easily broken during transportation, storage, or use, and thus quality instability problems such as breakage are likely to occur.

In view of the above, the present inventors have conducted extensive research and development on the above problems in the prior art, and have actively sought to solve the above problems through research and development of related industries for many years, and have succeeded in developing the method and apparatus for manufacturing a fiber straw of the present invention through long-term research and development to solve the above problems in the prior art.

Disclosure of Invention

The main object of the present invention is to provide a method and an apparatus for manufacturing a fiber straw, which can make a straw blow-molded from plant fibers to form a real environment-friendly fiber straw.

In order to achieve the above object, the present invention provides a method for manufacturing a fiber straw, which comprises using plant fibers such as bamboo as a main raw material, mixing with warm starch, water and vegetable gum, and using a pulverizer, a stirrer, a granulating device, a centrifuge, a tube blowing machine, a cooling mechanism and a cutting machine to manufacture the fiber straw by the following steps:

A. pulverizing to obtain plant material, and pulverizing with pulverizer.

B. Drying, namely drying the crushed plant raw materials to reduce the contained water.

C. Grinding and refining, namely grinding the plant raw materials into fine powdery fiber powder with more than 400 meshes by using a grinder;

D. mixing, namely stirring and mixing 37-70% of fiber powder, 20-35% of temperature-resistant starch, 1-3% of water and 9-25% of vegetable gum into a comprehensive raw material according to weight percentage.

E. Granulating, namely placing the comprehensive raw material in a granulating device, carrying out sectional heating conveying, and then forming the comprehensive raw material into a granular fiber particle raw material by using a forming die head; the granulating device is characterized in that a feeding port is arranged above one end of the granulating device, the forming die head is arranged at the other end of the granulating device, a first conveying shaft is used for conveying comprehensive raw materials inside the granulating device, the front end of the first conveying shaft is located below the feeding port, the tail end of the first conveying shaft is connected with the forming die head and used for conveying the comprehensive raw materials to the forming die head, the first conveying shaft is divided into four sections, the temperature of each section is controlled by different temperature controllers to be different, the temperature of the first section is set to be 140-170 ℃, the temperature of the second section is set to be 150-175 ℃, the temperature of the third section is set to be 160-180 ℃, the temperature of the fourth section is set to be 165-185 ℃, and the temperature of the forming die head is also controlled to be.

F. Drying the fiber particles by centrifugal force to make the water content less than 0.1%, preferably 0.01%.

G. Blowing pipe forming, namely putting the dried fiber particle raw material into a pipe blowing machine, arranging a feed inlet above one end of the pipe blowing machine, arranging a pipe blowing mechanism at the other end of the pipe blowing machine, arranging a second conveying shaft between the lower part of the feed inlet and the pipe blowing mechanism, conveying the fiber particle raw material to the pipe blowing mechanism by using the second conveying shaft, dividing the second conveying shaft into four sections, controlling the temperature of each section by using different temperature controllers to have difference, wherein the temperature of the first section is set to be 140-170 ℃, the temperature of the second section is set to be 150-175 ℃, the temperature of the third section is set to be 160-180 ℃, the temperature of the fourth section is set to be 165-185 ℃, the temperature of a forming die head is also controlled to be 170-190 ℃, conveying the fiber particle raw material to the pipe blowing mechanism for blowing pipe operation by sectional heating, and cooling and forming by using a cooling mechanism after the pipe with a tubular structure is formed.

H. Cutting the fiber tube, wherein the cooled fiber tube is cut into a finished fiber suction tube product according to a preset length by using a cutter; the cutter can be arranged on the outer side of a cutting machine, the cutting machine is provided with a driving assembly formed by a plurality of rollers which are oppositely arranged up and down, the driving assembly utilizes the rollers to clamp the formed pipe, the pipe is driven to move when the driving assembly rotates, the pipe formed by a blowing pipe is driven to pass through the cooling mechanism, and then the cutter is utilized to cut the pipe into a finished fiber suction pipe. Therefore, by using the manufacturing method and the device, the biological decomposable straw can be manufactured by using the plant fiber, and the purpose of protecting the environment can be achieved when in use.

The foregoing objects, features and characteristics of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a molding apparatus of the present invention.

Description of the symbols:

grinder (10) flour mill (20)

Mixer (30) granulating device (40)

Feed inlet (41) forming die head (42)

A first delivery shaft (43) pumping device (44)

Storage tank (45) centrifuge (50)

Feed inlet (61) of tube blowing machine (60)

A blowpipe mechanism (62) and a second delivery shaft (63)

Die head (621) die cavity (622)

Module (623) air jet channel (624)

Gas pipe (625) cooling mechanism (70)

Guillotine (80) roller (81, 82)

Driving component (83) cutter (84)

Detailed Description

Referring to fig. 1, the manufacturing apparatus of a fiber straw of the present invention at least comprises a pulverizer 10, a flour mill 20, a stirrer 30, a granulating device 40, a centrifuge 50, a tube blowing machine 60, a cooling mechanism 70, a cutting machine 80, and other devices, and the above devices are used to prepare the fiber straw by using plant fibers of plants as main raw materials, in combination with warm starch, water, and vegetable gum, and performing the following steps:

A. the smashing treatment is to obtain the plant material, and the smashing treatment is carried out on the plant material by a smashing machine 10, the plant material can be bamboo or other plants with fibers, and the smashing machine 10 is a machine which is generally used for cutting the plant into small blocks, so the description of the common machine is omitted.

B. Drying, namely drying the crushed plant raw materials by using a drying device or exposing the crushed plant raw materials to the sun and the like to reduce the contained water, wherein the drying device is a common machine and is not repeated.

C. Pulverizing and refining, and grinding the dried plant material into fine powder fiber powder with a size of above 400 mesh by using the pulverizer 20, wherein the pulverizer 20 is a common machine and is not described in detail. In addition, after the plant material is ground into fiber powder, if the heat resistance is improved, the fiber powder may be subjected to heat resistance treatment, and the heat resistance of the fiber powder may be increased by high-temperature steaming.

D. And (2) mixing treatment, namely putting 37-70% of fiber powder, 20-35% of temperature-resistant starch, 1-3% of water and 9-25% of vegetable gum into a stirrer 30 according to weight percentage, and stirring and mixing to obtain a comprehensive raw material.

E. Granulating, namely placing the comprehensive raw material into a granulating device 40, carrying out sectional heating conveying, and then forming the comprehensive raw material into a granular fiber granule raw material by using a forming die head 42; a feeding port 41 is arranged above one end of the granulating device 40, the forming die head 42 is arranged at the other end, a first conveying shaft 43 is used for conveying the comprehensive raw materials in the granulating device, the front end of the first conveying shaft 43 is positioned below the feeding port 41, the tail end of the first conveying shaft is connected with the forming die head 42 for conveying the comprehensive raw materials to the forming die head 42, a plurality of meshes are arranged at the output end of the forming die head 42, the mesh size can be set to be 2-6 mm, and the fiber particle raw materials can be formed after the comprehensive raw materials pass through the meshes. After the fiber particle material is formed, it can be pumped to the storage tank 45 by a pumping device 44 and cooled during the pumping process. In addition, the first conveying shaft 43 can be divided into four sections, the temperature of each section is controlled by different temperature controllers, the first section can be set to 140-170 ℃, the second section can be set to 150-175 ℃, the third section can be set to 160-180 ℃, the fourth section can be set to 165-185 ℃, and the temperature of the forming die head is also controlled to 170-190 ℃, so that the purpose of section heating and conveying during granulation is achieved.

F. Drying the fiber particles, placing the fiber particle raw material in the centrifuge 50, and drying the fiber particle raw material by using a rotating centrifugal force to make the water content at least lower than 0.1%, preferably 0.01%, wherein the centrifuge 50 is a known general machine and will not be described again. .

G. Blowing pipe forming, placing the dried fiber particle raw material into the blowing pipe machine 60, arranging a feed inlet 61 above one end of the blowing pipe machine 60, arranging a blowing pipe mechanism 62 at the other end, arranging a second conveying shaft 63 between the lower part of the feed inlet 61 and the blowing pipe mechanism 62, conveying the fiber particle raw material to the blowing pipe mechanism 62 by using the second conveying shaft 63, wherein the blowing pipe mechanism 62 and the second conveying shaft 63 can be divided into four sections, the temperature of each section is controlled by different temperature controllers to be different, the first section can be set to be 140-170 ℃, the second section can be set to be 150-175 ℃, the third section can be set to be 160-180 ℃, the fourth section can be set to be 165-185 ℃, the temperature of the forming die head is also controlled to be 170-190 ℃, and conveying the fiber particle raw material to the blowing pipe mechanism 62 by sectional heating for blowing pipe operation.

A mold cavity 622 with a tapered shape is formed in a mold head 621 of the blow pipe mechanism 62, the mold cavity 622 can be provided with a module 623, the outer edge of the module 623 is also tapered, a predetermined distance is provided between the module 623 and the mold cavity 622 for allowing the fiber particle raw material to pass through, the module 623 is provided with an air injection channel 624, one end of the air injection channel 624 is communicated with the outer side end of the hole groove 622, the other end is connected with an air pipe 625 for conveying high-pressure air, and a vacuum control pipe device (not shown) is provided to make the air of the blow pipe even, when the fiber particle raw material is conveyed to the front end of the mold cavity 622, the high-pressure air injected through the air injection channel 624 can blow the extruded fiber particle raw material to form a tubular pipe.

H. Cooling and shaping, namely after the tubular structure is shaped, cooling and shaping the tubular structure through a cooling mechanism 70, wherein the cooling mechanism 70 can be a water tank or other appliances with cooling functions, and has a water temperature control function, and the water temperature is controlled to be about 3 ℃.

I. Cutting the tube, wherein the cooled fiber tube is cut into a finished fiber suction tube product according to a preset length by using a cutter 84; the cutter 84 can be disposed outside the cutting machine 80, the cutting machine 80 has a driving assembly 83 formed by a plurality of rollers 81 and 82, the driving assembly 83 utilizes the rollers 81 and 82 to clamp the formed tube, the driving assembly 83 drives the tube to move when rotating, the tube formed by the blowing pipe is driven to pass through the cooling mechanism 70, and then the cutter 84 is used to cut the tube into the finished product of the fiber suction pipe.

Therefore, by using the manufacturing method and the equipment, the biodegradable straw can be made from the plant fiber, the purpose of protecting the environment can be achieved when in use, and the tensile strength of the finished straw product is 168kg/cm ²A heat distortion temperature of 95 ℃ and a flexural strength of 250 to 300168kg/cm ²And the impact strength is 2.5-3%, and the use requirements of various cold and hot environments are met.

The above-mentioned embodiments are merely illustrative of the present invention, and various modifications, modifications and applications of the invention without departing from the spirit of the invention shall be included in the protection scope of the present invention.