WO2022126853A1 - 一种竹吸管加工方法 - Google Patents

一种竹吸管加工方法 Download PDF

Info

Publication number
WO2022126853A1
WO2022126853A1 PCT/CN2021/076968 CN2021076968W WO2022126853A1 WO 2022126853 A1 WO2022126853 A1 WO 2022126853A1 CN 2021076968 W CN2021076968 W CN 2021076968W WO 2022126853 A1 WO2022126853 A1 WO 2022126853A1
Authority
WO
WIPO (PCT)
Prior art keywords
bamboo
tape
processing method
cylinder
steps
Prior art date
Application number
PCT/CN2021/076968
Other languages
English (en)
French (fr)
Inventor
连健昌
冯磊
Original Assignee
龙竹科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 龙竹科技集团股份有限公司 filed Critical 龙竹科技集团股份有限公司
Priority to EP21814663.7A priority Critical patent/EP4035572A4/en
Priority to US17/612,584 priority patent/US20220396001A1/en
Priority to JP2021570174A priority patent/JP7350093B2/ja
Priority to AU2021258025A priority patent/AU2021258025B2/en
Priority to CA3139045A priority patent/CA3139045A1/en
Publication of WO2022126853A1 publication Critical patent/WO2022126853A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J1/00—Mechanical working of cane or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/24—Manufacture or reconditioning of specific semi-finished or finished articles of household utensils, e.g. spoons, clothes hangers, clothes pegs

Definitions

  • the invention relates to the technical field of bamboo product processing, in particular to a processing method for a bamboo straw.
  • the straw products on the market include paper straws, plastic straws and bamboo straws.
  • the advantages of paper straws are low price, simple manufacturing process, reusability, and environmental protection.
  • the disadvantage is that they have poor durability. After long-term soaking or soaking in hot water, they will soften quickly, causing the straw to deform and fail. Therefore, it can only be used as a paper straw. Disposable straws are used.
  • the advantages of plastic straws are low cost and good durability, but they are extremely harmful to the human body and ecology, and do not conform to the concept of sustainable development.
  • the bamboo straw is processed from natural bamboo and wood, and has the advantages of good durability, health and environmental protection, so it has a good development prospect.
  • the first method is to use a drill to drill a straw hole on the raw material, and then cut and polish the raw material according to the product shape design; Shape, cut off the excess after winding, and finally sand the end of the straw.
  • the advantage of scheme 1 is that the processing efficiency is high, but the drilling method has the problem that the bamboo straw is easy to crack.
  • the advantage of the second solution is that the bamboo strips are not easily cracked by winding the tube, but only one bamboo straw can be processed at a time, so there are problems of low efficiency and poor product consistency.
  • the technical problem to be solved by the present invention is to provide a bamboo straw processing method with high efficiency and good product consistency.
  • the technical scheme adopted in the present invention is: a processing method for bamboo straws, comprising the following steps: connecting more than two bamboo pieces to form a bamboo strip, and continuously winding the bamboo strip according to a preset helix angle to form a cylinder , cut the cylinder at preset intervals to form a straw.
  • the beneficial effects of the present invention are: compared with the traditional processing method of bamboo straws, the method provided by the present invention firstly obtains bamboo strips by continuous lengthening of bamboo slices, so as to prepare for continuous production, and the continuous bamboo strips are obtained by continuous winding. It has excellent mechanical properties as a whole, and has a stable structure and neat appearance. Then, through isometric cutting, bamboo straws with high specifications and performance consistency are continuously produced, which generally improves the work efficiency by more than 20% and reduces the cost of production. A lot of manpower and equipment costs.
  • Fig. 1 is the structural representation of the bamboo straw processing method of the embodiment of the present invention
  • Fig. 2 is the process flow diagram of the bamboo straw processing method of the second embodiment of the present invention.
  • Fig. 3 is the structural representation of the bamboo slice of the second embodiment of the present invention.
  • Fig. 4 is another structural representation of the bamboo slice of the second embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a cylinder according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a cylinder according to Embodiment 3 of the present invention.
  • Fig. 7 is the partial enlarged view of the cylinder of the third embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a cylinder according to Embodiment 4 of the present invention.
  • Fig. 9 is the partial enlarged view of the cylinder of the fourth embodiment of the present invention.
  • Fig. 10 is the structural representation of the bamboo slice of the fifth embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a bamboo slice according to Embodiment 11 of the present invention.
  • a method for processing a bamboo straw includes the following steps: connecting two or more pieces of bamboo to form a bamboo strip, continuously winding the bamboo strip at a preset helix angle to form a cylinder, and cutting it at a preset interval The cylinder forms the straw.
  • the beneficial effects of the present invention are: compared with the traditional processing method of bamboo straws, the method provided by the present invention firstly obtains bamboo strips by continuous lengthening of bamboo slices, so as to prepare for continuous production.
  • the cylinder obtained by continuous winding has excellent mechanical properties as a whole, and the structure is stable and the shape is neat.
  • the bamboo straws with high specifications and performance consistency are continuously produced by isometric cutting, and the overall improvement is more than 20%. Work efficiency, reduce a lot of manpower and equipment costs.
  • the bamboo material is processed to obtain more than two pieces of bamboo, and each piece of bamboo has a uniform thickness, and the two or more pieces of bamboo are connected along the fiber direction of the bamboo to obtain a bamboo tape.
  • each bamboo sheet is of equal thickness to ensure the flatness of the straw after winding, and the bamboo sheets are connected along the fiber direction (axial direction), which can strengthen the connection between the two bamboo sheets.
  • the stability of the structure reduces the risk of cracking and breaking of the bamboo tape.
  • the bamboo tape is cut along the fiber direction of the bamboo according to the preset width, and the slitted bamboo tape is rolled to form a bamboo tape roll.
  • cutting the bamboo tape along the fiber direction according to the preset bandwidth can reduce the difficulty of cutting, improve the cutting quality, avoid burrs on the cut surface, affect the subsequent winding and gluing effects, and improve the aesthetics of the final straw product.
  • the slitted bamboo tape is wound into a bamboo tape roll, which is convenient for storage and transportation, and is beneficial to improve the efficiency and quality of subsequent bamboo tape unwinding and winding operations.
  • Two or more bamboo tape rolls are unrolled synchronously, and the two or more bamboo tapes unrolled are superimposed and wound.
  • the width of the bamboo tape located on the outer layer is designed to be larger than that of the bamboo tape located on the inner layer, and the unwinding speed of the bamboo tape located on the outer layer is controlled to be smaller than the unwinding speed of the bamboo tape located on the inner layer.
  • the composite material layer is glued on the to-be-glued surface of the bamboo sheet, the surface gluing operation is performed on the composite material layer before the bamboo tape is wound, and the bamboo tape before winding is heated.
  • the to-be-glued surface of each bamboo strip is determined according to the superimposed pattern, the composite material layer is glued on the to-be-glued surface of the bamboo sheet, and then slitted.
  • the glue is evenly coated on the composite material layer, and the amount of glue applied is adjusted according to the properties of the glue.
  • the role of the mechanical properties of bamboo straws. Heating is to remove the excess moisture of the bamboo skin while maintaining the temperature of the bamboo skin body within a reasonable range, so as to achieve the purpose of softening and improve the effect of gluing and subsequent winding operations.
  • the steam heating operation is carried out before the surface gluing operation of the bamboo belt.
  • the purpose of steam heating is to adjust the water content of the bamboo tape, so that the bamboo tape has better toughness, is not easy to be brittle and cracked, and is convenient for gluing.
  • the predetermined helix angle is determined according to the width of the bamboo tape and the winding diameter of the bamboo tape, and the bamboo tape is continuously wound into a cylinder at the predetermined helix angle along the same direction as the fiber direction of the bamboo.
  • the width of the bamboo tape and the diameter of the mandrel wound by the bamboo tape determine the angle of the preset helix angle.
  • the bamboo tape is helically wound in the fiber direction (stem direction) along the preset helix angle, which can reduce the difficulty of winding. , to ensure the mechanical properties of the wound cylinder, prevent cracking, and facilitate cutting.
  • more than two bamboo strips are wound in a stepped manner, which is beneficial to improve the strength and appearance flatness of the bamboo straw.
  • the edges are closely connected, and when the bamboo tape in the outer layer is wound, the edges are also closely connected, and the bamboo tape in the outer layer will be in the inner layer when it is wound.
  • the seam of the bamboo tape of the layer is covered, thereby improving the strength and sealing of the straw product.
  • the bamboo tape on the mandrel is pressed tightly, and the cylinder is tensioned and screwed by the frictional force opposite to the winding direction of the bamboo tape.
  • the cylinder is cut with a cutting device whose moving speed is the same as the conveying speed of the cylinder.
  • the cutting equipment must be moved at the same speed while the cylinder is being conveyed, so as to ensure the smoothness of the cut section, reduce the workload of subsequent operations such as polishing and shaping the end face of the bamboo straw, and improve the processing efficiency.
  • the first embodiment of the present invention is:
  • a method for processing a bamboo straw comprising the following steps: connecting two or more bamboo pieces 1 to form a bamboo strip 2, continuously winding the bamboo strip 2 at a preset helix angle to form a cylinder 3, and cutting the cylinder 3 at a preset interval to form straw.
  • the second embodiment of the present invention is:
  • bamboo tape 2 was obtained by finger jointing in the fiber direction of .
  • the bamboo tape 2 is cut along the fiber direction of the bamboo according to the preset width.
  • the two bamboo strips 2 are respectively wound to obtain two bamboo strips 4; the two bamboo strips 2 unrolled are subjected to a steam heating operation through a semi-closed steam box, and the temperature of the steam box is 45° C.
  • the bamboo strip 2 with a moisture content of less than 12% is made more ductile and less brittle by steam treatment.
  • a single-sided gluing operation is performed first, and then a hot air heating and drying operation is performed.
  • the bamboo strip 2 passes through the hot air at a linear speed of 10m/min.
  • the temperature of the hot air narrow and long channel is lower than 400°C, and the temperature is adjusted according to the linear speed of the bamboo tape 2, so that while removing the excess moisture of the bamboo tape 2, the temperature of the bamboo tape 2 is kept at 100°C to achieve the purpose of softening.
  • the two bamboo strips 2 that are unrolled are tightly wound on the same core mold in a stepped manner, that is, when the bamboo strip 2 in the inner layer is wound, the edges are closely connected, and the bamboo strip 2 in the outer layer is wound.
  • the bamboo tape 2 in the outer layer covers the seam of the bamboo tape 2 in the inner layer during winding, thereby improving the strength, sealing and appearance flatness of the straw product.
  • the glued surfaces of the bamboo strips 2 are oppositely arranged, and the side walls of the bamboo strips 2 close to the mandrel and the side walls of the bamboo strips 2 far from the mandrel are both the side walls of the bamboo strips 2 where the side walls are located with a higher density.
  • a preset helix angle is determined according to the width of the bamboo tape 2 and the diameter of the mandrel 5 wound by the bamboo tape 2, and the bamboo tape 2 is continuously wound along the helix direction in the same direction as the fiber direction of the bamboo at the preset helix angle.
  • a cylinder 3 is formed, and at the same time of winding, the bamboo tape 2 is conveyed forward at a constant speed while winding and compressing the bamboo tape 2 by using the rubber belt 6 that spirally moves relative to the mandrel 5 .
  • the heating and curing means that the hot air at 65°C is sprayed along the direction of the mandrel 5 through the nozzle, and the temperature is set according to the curing characteristics of the glue.
  • the purpose is to cure the glue, and the temperature is adjusted independently according to the curing characteristics of the glue.
  • Continuous cutting means cutting the cylinder 3 in a uniform and equidistant manner, so as to obtain a straw product with equal length and flush section, and using the cutting device 7 with the same moving speed as the conveying speed of the cylinder 3 to cut the cylinder 3,
  • the first cutting method is to use a tool with a rotating speed range of 500 rpm for cutting
  • the second cutting method is to use 65W laser cutting.
  • Laser cutting has the advantages of high speed and no burr in the incision.
  • the difference between the third embodiment of the present invention and the second embodiment is that the two bamboo strips 2 unrolled are wound on the same core mold in a stepped manner, that is, the bamboo strips in the inner layer
  • the edge has a gap
  • the bamboo belt 2 in the outer layer is closely connected to the edges when it is wound, and the bamboo belt 2 in the outer layer will be in the gap of the bamboo belt 2 in the inner layer when it is wound. cover.
  • the difference between the fourth embodiment of the present invention and the second embodiment is:
  • the three bamboo strips 2 are respectively wound to obtain three bamboo strip rolls 4, and the three bamboo strips 2 unrolled from the three bamboo strip rolls 4 are tightly wound on the same core mold in a stepped pattern simultaneously.
  • the bamboo tapes 2 of the layer and the outer layer are the same as those of the second embodiment, and are coated with glue on one side, and the bamboo tape 2 of the middle layer is coated with glue on both sides.
  • the difference between the fifth embodiment of the present invention and the second embodiment is that the bamboo tape 2 is obtained by bonding two or more bamboo pieces 1 along the fiber direction of the bamboo.
  • the difference between the sixth embodiment of the present invention and the second embodiment is that: two or more bamboo pieces 1 are buckled along the fiber direction of the bamboo to obtain a bamboo tape 2 .
  • the difference between the seventh embodiment of the present invention and the second embodiment is that the drying operation adopts microwave heating and drying.
  • the difference between the eighth embodiment of the present invention and the second embodiment is that the drying operation adopts heat pipe heating and drying.
  • the difference between the ninth embodiment of the present invention and the second embodiment is: in this embodiment, the thickness of the bamboo sheet 1 is 0.5 mm; the temperature of the steam box is 90°C; The line speed of 60m/min passes through the long and narrow hot air passage, and the temperature of the bamboo belt 2 is kept at 130°C; the temperature of the hot air used for heating and curing is 120°C; the rotational speed of the cutter is 3000 rpm.
  • the difference between the tenth embodiment of the present invention and the second embodiment is: in this embodiment, the thickness of the bamboo sheet 1 is 0.25mm; the temperature of the steam box is 67°C; The line speed of 35m/min passes through the long and narrow hot air channel, and the temperature of the bamboo belt 2 is kept at 115°C; the temperature of the hot air used for heating and curing is 93°C; the rotational speed of the cutter is 1750 rpm.
  • the difference between the eleventh embodiment of the present invention and the second embodiment is:
  • the composite material layer 8 is a non-woven layer, the specification of the non-woven layer is 10 g/mm2, and the thickness is 0.02 mm, and the non-woven layer is bonded to the surface of the bamboo sheet coated with glue.
  • the advantages of the non-woven layer are: 1) The fiber structure is a mesh structure, which helps to improve the effect of gluing, enhance the firmness of the adhesive between the bamboo tapes, and achieve the purpose of facilitating the spiral winding of the bamboo tape; 2) It can improve the processing The mechanical properties of the bamboo straw can enhance the strength, toughness and bending resistance of the straw, and can avoid the bamboo straw from breaking or cracking; 3) The non-woven fabric layer is light in weight and thin, and will not affect the quality and thickness of the bamboo straw. influences.
  • the method provided by the present invention firstly obtains bamboo strips by continuous lengthening of bamboo slices, so as to prepare for continuous production.
  • the tube has excellent mechanical properties as a whole, and the structure is stable and the shape is neat, and then the bamboo straws with high specifications and performance consistency are continuously produced by isometric cutting, which generally improves the work efficiency by more than 20% and reduces a lot of manpower and equipment costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

本发明涉及竹制品加工技术领域，尤其涉及一种竹吸管加工方法，包括以下步骤：两片以上的竹片连接形成竹带，将竹带按预设螺旋角连续绕制形成圆筒，按预设间距切断圆筒形成吸管。本发明提供的方法相较于传统的竹吸管加工方式，先将竹片连续接长得到竹带的方式，为连续生产做准备，连续的竹带通过持续绕制得到的圆筒，整体具有优秀的力学性能，并且结构稳定、外形整齐，再通过等距裁切连续生产出规格、性能一致性极高的竹吸管，总体上提升了20%以上工作效率，降低了大量的人力、设备成本。

Description

一种竹吸管加工方法 技术领域
本发明涉及竹制品加工技术领域，尤其涉及一种竹吸管加工方法。
 背景技术
目前，市面上的吸管产品包括纸吸管、塑料吸管和竹制吸管等。纸吸管的优势在于价格低廉、制造工艺简单，可重复利用、绿色环保，缺点在于耐用性差，经过长时间浸泡或在热水中浸泡很快便会发生软化，导致吸管变形失效，因此只能作为一次性吸管使用。塑料吸管的优势在于成本较低、耐用性好，但是对人体、生态都具有极大危害，且不符合可持续发展理念。而竹吸管是由天然的竹木加工而成，具有耐用性好、健康环保的优点，因此具有良好的发展前景。
现有的竹吸管加工方法包括两种，方案一是利用钻头在原料上钻出吸管孔，再根据产品外形设计对原料切削打磨；方案二是利用单根竹条在芯轴上绕制成吸管形状，绕制后将多余部分切除，最后对吸管端部进行打磨。方案一的优势在于加工效率较高，但钻孔的方式存在竹吸管易开裂的问题。方案二的优势在于采用绕制制管的方式竹条不易开裂，但是一次仅能加工一只竹吸管，因此存在效率低、产品一致性差的问题。
 技术问题
本发明所要解决的技术问题是：提供一种效率高、产品一致性好的竹吸管加工方法。
 技术解决方案
为了解决上述技术问题，本发明采用的技术方案为：一种竹吸管加工方法，包括以下步骤：两片以上的竹片连接形成竹带，将竹带按预设螺旋角连续绕制形成圆筒，按预设间距切断圆筒形成吸管。
 有益效果
本发明的有益效果在于：本发明提供的方法相较于传统的竹吸管加工方式，先将竹片连续接长得到竹带的方式，为连续生产做准备，连续的竹带通过持续绕制得到的圆筒，整体具有优秀的力学性能，并且结构稳定、外形整齐，再通过等距裁切连续生产出规格、性能一致性极高的竹吸管，总体上提升了20%以上工作效率，降低了大量的人力、设备成本。
 附图说明
图1为本发明实施例一的竹吸管加工方法的结构示意图；
图2为本发明实施例二的竹吸管加工方法的工艺流程图；
图3为本发明实施例二的竹片的结构示意图；
图4为本发明实施例二的竹片的另一结构示意图；
图5为本发明实施例二的圆筒的结构示意图；
图6为本发明实施例三的圆筒的结构示意图；
图7为本发明实施例三的圆筒的局部放大图；
图8为本发明实施例四的圆筒的结构示意图；
图9为本发明实施例四的圆筒的局部放大图；
图10为本发明实施例五的竹片的结构示意图；
图11为本发明实施例十一的竹片的结构示意图；
标号说明：
1、竹片；
2、竹带；
3、圆筒；
4、竹带卷；
5、芯轴；
6、橡胶带；
7、切断设备；
8、复合材料层。
 本发明的实施方式
为详细说明本发明的技术内容、所实现目的及效果，以下结合实施方式并配合附图予以说明。
请参照图1至图11，一种竹吸管加工方法，包括以下步骤：两片以上的竹片连接形成竹带，将竹带按预设螺旋角连续绕制形成圆筒，按预设间距切断圆筒形成吸管。
从上述描述可知，本发明的有益效果在于：本发明提供的方法相较于传统的竹吸管加工方式，先将竹片连续接长得到竹带的方式，为连续生产做准备，连续的竹带通过持续绕制得到的圆筒，整体具有优秀的力学性能，并且结构稳定、外形整齐，再通过等距裁切连续生产出规格、性能一致性极高的竹吸管，总体上提升了20%以上工作效率，降低了大量的人力、设备成本。
进一步的，具体包括步骤：
加工竹料得到两张以上的竹片，每张竹片的厚度均匀，将两张以上竹片沿竹子的纤维方向相接得到竹带。
由上述描述可知，首先将竹料加工成竹片，每张竹片等厚，以保证缠绕后吸管的平整度，将竹片沿纤维方向（轴向）相接，可以加强两片竹片连接结构的稳定性，降低竹带开裂、折断的风险。
进一步的，具体包括步骤：
将竹带按照预设带宽沿竹子的纤维方向分切，分切后的竹带绕卷形成竹带卷。
由上述描述可知，根据预设带宽将竹带沿纤维方向分切，可降低裁切难度，提高裁切质量，避免切面存在毛刺，影响后续缠绕、胶粘效果，提高了最终吸管产品的美观性。将分切后的竹带绕卷形成竹带卷，便于收纳、运输，有利于提高后续竹带放卷、绕制作业的效率及质量。
进一步的，具体包括步骤：
两个以上竹带卷同步放卷，将放卷出的两条以上竹带叠加绕制。
由上述描述可知，当竹吸管设计为多层结构时，在绕制前先将不同竹带分别收卷，收卷后的竹带卷再同步放卷竹带，叠加绕制。
进一步的，将位于外层的竹带的带宽设计为大于位于内层的竹带的带宽，同时控制位于外层的竹带的放卷速度小于位于内层的竹带的放卷速度。
由上述描述可知，这样有助于提高竹吸管的密封性以及结构强度。
进一步的，具体包括步骤：
在竹片的待涂胶面上胶粘复合材料层，在竹带绕制前对复合材料层进行表面涂胶作业，对绕制前的竹带进行加热作业。
由上述描述可知，根据叠加的型式确定每条竹带的待涂胶面，在竹片的待涂胶面上胶粘复合材料层，而后再进行分切。在竹带的表面进行单面或双面涂胶时，将胶水均匀涂覆在复合材料层上，涂胶量根据胶水性质自主调节，复合材料层主要起到提高胶粘牢固性，以及增强加工出的竹吸管的力学性能的作用。加热则是在去除竹皮多余水分的同时又能将竹皮本体的温度保持在合理范围内，从而达到软化的目的，提高涂胶和后续缠绕作业的效果。
进一步的，具体包括步骤：
在竹带进行表面涂胶作业前先进行蒸汽加热作业。
由上述描述可知，蒸汽加热的目的是为了调整竹带的含水量，使得竹带具有更好的韧性，不易脆裂，且利于涂胶。
进一步的，具体包括步骤：
根据竹带的带宽以及竹带的绕制直径确定预设螺旋角，并以预设螺旋角将竹带沿着与竹子的纤维方向同向的螺旋方向连续绕制成圆筒。
由上述描述可知，竹带的带宽和竹带绕制的芯轴直径决定了预设螺旋角的角度，竹带沿预设螺旋角以纤维方向（茎向）螺旋绕制，可降低绕制难度，保证绕制后的圆筒的力学性能，防止开裂，便于裁切。
进一步的，具体包括步骤：
绕制时，将两条以上竹带按预设螺旋角交错叠加缠绕在同一芯模上。
由上述描述可知，两条以上竹带呈阶梯式绕制，有利于提高竹吸管的强度和外观平整度。优选的，处于内层的竹带在绕制时，边缘紧密相接，处于外层的竹带在绕制时，同样边缘紧密相接，同时处于外层的竹带在绕制时将处于内层的竹带的接缝覆盖，从而提升了吸管产品的强度、密封性等。
进一步的，具体包括步骤：
将芯模上的竹带压紧，并利用与竹带绕制方向相反的摩擦力将圆筒拉紧并且螺旋输送。
由上述描述可知，利用压力和摩擦力的配合将圆筒压紧并向前输送，实现拉紧、输送一体化作业。
进一步的，具体包括步骤：
利用移动速度与圆筒的输送速度相同的切断设备将圆筒切断。
由上述描述可知，在圆筒输送的同时进行裁切，就要将切断设备以相同速度移动，从而保证切口断面平整，减少后续对竹吸管端面抛光整形等作业的工作量，提高加工效率。
请参照图1至图11，本发明的实施例一为：
一种竹吸管加工方法，包括以下步骤：两片以上的竹片1连接形成竹带2，将竹带2按预设螺旋角连续绕制形成圆筒3，按预设间距切断圆筒3形成吸管。
请参照图1至图11，本发明的实施例二为：
首先，根据预设厚度将竹料刨切成两张以上厚度为0.1mm的竹片1，在竹片1的待涂胶面上胶粘复合材料层8；将两片以上竹片1沿竹子的纤维方向指接得到竹带2。将竹带2按照预设带宽沿竹子的纤维方向分切。将两条竹带2分别绕卷，得到两个竹带卷4；对放卷出的两条竹带2通过半封闭的蒸汽箱体进行蒸汽加热作业，蒸汽箱体的温度为45℃，温度根据竹带2通过蒸汽箱体的速度以及竹带2含水量来调整，通过蒸汽处理使得含水量小于12%的竹带2更有韧性，不易脆裂。对放卷出的两条竹带2的表面的复合材料层8上先进行单面涂胶作业，再进行热风加热烘干作业，具体为，竹带2以10m/min的线速度通过热风狭长通道，热风狭长通道的温度低于400℃，温度根据竹带2线速度调整，这样在去除竹带2多余水分的同时，又使竹带2本体温度保持在100℃，以达到软化的目的。将放卷出的两条竹带2呈阶梯式同时紧密绕制在同一芯模上，即处于内层的竹带2在绕制时，边缘紧密相接，处于外层的竹带2在绕制时，同样边缘紧密相接，同时处于外层的竹带2在绕制时将处于内层的竹带2的接缝覆盖，从而提升了吸管产品的强度、密封性以及外观平整度，两条竹带2的涂胶面相对设置，靠近芯模的竹带2侧壁和远离芯模的竹带2侧壁，均为该侧壁所在竹带2的密度较大的侧壁。
然后，根据竹带2的带宽以及竹带2绕制的芯轴5直径确定预设螺旋角，并以预设螺旋角将竹带2沿着与竹子的纤维方向同向的螺旋方向连续绕制成圆筒3，在绕制的同时，利用相对于芯轴5螺旋运动的橡胶带6一边将竹带2缠绕压紧，一边将竹带2向前匀速输送。
最后，对圆筒3依次进行加热固化、连续切断后，得到两根以上长度相等的吸管产品，加热固化即采用65℃的热风通过喷嘴沿芯轴5方向喷出，温度根据胶水的固化特性设定，目的是为了使胶水固化，温度根据胶水的固化特性自主调节。连续切断即采用匀速、等距的方式将圆筒3切断，即可得到长度相等、断面平齐的吸管产品，利用移动速度与圆筒3的输送速度相同的切断设备7将圆筒3切断，切断方式一是采用转速范围为500转/分钟的刀具进行切断，切断方式二是采用65W激光切割，采用激光切割具有速度快、切口无毛刺的优点。
请参照图1至图11，本发明的实施例三与实施例二的区别在于：将放卷出的两条竹带2呈阶梯式同时绕制在同一芯模上，即处于内层的竹带2在绕制时，边缘具有间隙，处于外层的竹带2在绕制时，边缘紧密相接，同时处于外层的竹带2在绕制时将处于内层的竹带2的间隙覆盖。
请参照图1至图11，本发明的实施例四与实施例二的区别在于：
本实施例中，将三条竹带2分别绕卷，得到三个竹带卷4，三个竹带卷4放卷出的三条竹带2呈阶梯式同时紧密绕制在同一芯模上，内层和外层的竹带2均与实施例二相同，为单面涂胶，中间层的竹带2则采用双面涂胶。
请参照图1至图11，本发明的实施例五与实施例二的区别在于：两片以上竹片1沿竹子的纤维方向粘接得到竹带2。
请参照图1至图11，本发明的实施例六与实施例二的区别在于：两片以上竹片1沿竹子的纤维方向扣接得到竹带2。
请参照图1至图11，本发明的实施例七与实施例二的区别在于：烘干作业采用微波加热烘干。
请参照图1至图11，本发明的实施例八与实施例二的区别在于：烘干作业采用热管加热烘干。
请参照图1至图11，本发明的实施例九与实施例二的区别在于：在本实施例中，竹片1的厚度为0.5mm；蒸汽箱体的温度为90℃；竹带2以60m/min的线速度通过热风狭长通道，竹带2本体温度保持在130℃；加热固化采用的热风温度为120℃；刀具的转速为3000转/分钟。
请参照图1至图11，本发明的实施例十与实施例二的区别在于：在本实施例中，竹片1的厚度为0.25mm；蒸汽箱体的温度为67℃；竹带2以35m/min的线速度通过热风狭长通道，竹带2本体温度保持在115℃；加热固化采用的热风温度为93℃；刀具的转速为1750转/分钟。
请参照图1至图11，本发明的实施例十一与实施例二的区别在于：
所述复合材料层8为无纺布层，无纺布层的规格为10克/平方毫米，厚度为0.02mm，无纺布层粘接到涂有胶水的竹片的表面。无纺布层的优点在于：1）纤维结构呈网状结构，有助于提高涂胶效果，提升竹带间胶粘的牢固性，达到便于竹带螺旋绕制的目的；2）能够改善加工出的竹吸管的力学性能，增强吸管的强度、韧性、抗弯折能力，可避免竹吸管折断或开裂；3）无纺布层质量轻、厚度薄，不会对竹吸管的质量、厚度产生影响。
综上所述，本发明提供的方法相较于传统的竹吸管加工方式，先将竹片连续接长得到竹带的方式，为连续生产做准备，连续的竹带通过持续绕制得到的圆筒，整体具有优秀的力学性能，并且结构稳定、外形整齐，再通过等距裁切连续生产出规格、性能一致性极高的竹吸管，总体上提升了20%以上工作效率，降低了大量的人力、设备成本。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等同变换，或直接或间接运用在相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种竹吸管加工方法，其特征在于，包括以下步骤：两片以上的竹片连接形成竹带，将竹带按预设螺旋角连续绕制形成圆筒，按预设间距切断圆筒形成吸管。
  2. 根据权利要求1所述的竹吸管加工方法，其特征在于，具体包括步骤：
    加工竹料得到两张以上的竹片，每张竹片的厚度均匀，将两张以上竹片沿竹子的纤维方向相接得到竹带。
  3. 根据权利要求2所述的竹吸管加工方法，其特征在于，具体包括步骤：
    将竹带按照预设带宽沿竹子的纤维方向分切，分切后的竹带绕卷形成竹带卷。
  4. 根据权利要求3所述的竹吸管加工方法，其特征在于，具体包括步骤：
    两个以上竹带卷同步放卷，将放卷出的两条以上竹带叠加绕制。
  5. 根据权利要求2所述的竹吸管加工方法，其特征在于，具体包括步骤：
    在竹片的待涂胶面上胶粘复合材料层，在竹带绕制前对复合材料层进行表面涂胶作业，对绕制前的竹带进行加热作业。
  6. 根据权利要求1所述的竹吸管加工方法，其特征在于，具体包括步骤：
    在竹带进行表面涂胶作业前先进行蒸汽加热作业。
  7. 根据权利要求1所述的竹吸管加工方法，其特征在于，具体包括步骤：
    根据竹带的带宽以及竹带的绕制直径确定预设螺旋角，并以预设螺旋角将竹带沿着与竹子的纤维方向同向的螺旋方向连续绕制成圆筒。
  8. 根据权利要求1所述的竹吸管加工方法，其特征在于，具体包括步骤：
    绕制时，将两条以上竹带按预设螺旋角交错叠加缠绕在同一芯模上。
  9. 根据权利要求8所述的竹吸管加工方法，其特征在于，具体包括步骤：
    将芯模上的竹带压紧，并利用与竹带绕制方向相反的摩擦力将圆筒拉紧并且螺旋输送。
  10. 根据权利要求9所述的竹吸管加工方法，其特征在于，具体包括步骤：
    利用移动速度与圆筒的输送速度相同的切断设备将圆筒切断。
PCT/CN2021/076968 2020-12-17 2021-02-20 一种竹吸管加工方法 WO2022126853A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21814663.7A EP4035572A4 (en) 2020-12-17 2021-02-20 BAMBOO STRAW PROCESSING PROCESS
US17/612,584 US20220396001A1 (en) 2020-12-17 2021-02-20 Bamboo straw machining method
JP2021570174A JP7350093B2 (ja) 2020-12-17 2021-02-20 竹製ストローの加工方法
AU2021258025A AU2021258025B2 (en) 2020-12-17 2021-02-20 Bamboo straw machining method
CA3139045A CA3139045A1 (en) 2020-12-17 2021-02-20 Bamboo straw machining method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011495394.4A CN112518930B (zh) 2020-12-17 2020-12-17 一种竹吸管加工方法
CN202011495394.4 2020-12-17

Publications (1)

Publication Number Publication Date
WO2022126853A1 true WO2022126853A1 (zh) 2022-06-23

Family

ID=75000943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/076968 WO2022126853A1 (zh) 2020-12-17 2021-02-20 一种竹吸管加工方法

Country Status (2)

Country Link
CN (3) CN113829452B (zh)
WO (1) WO2022126853A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211878B (zh) * 2021-04-02 2022-06-17 东莞市立韵精密金属科技有限公司 一种利用扭转后螺旋缠绕式烟管制备装置
CN113146778B (zh) * 2021-05-18 2022-09-20 龙竹科技集团股份有限公司 一种缠绕式竹吸管加工工艺
CN114055586A (zh) * 2021-11-22 2022-02-18 牡丹江汇力科技有限公司 一种刨削卷制式木制吸管的自动化生产设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532592A (zh) * 2009-04-10 2009-09-16 芜湖圣弗兰玻璃钢有限公司 一种环保玻璃钢管及其生产方法
CN101947803A (zh) * 2010-02-09 2011-01-19 芜湖圣弗兰玻璃钢有限公司 直竹条增强竹复管的制备方法
CN105650363A (zh) * 2016-01-03 2016-06-08 南京林业大学 一种竹制复合管及其制造方法
CN110126050A (zh) * 2019-06-17 2019-08-16 怀化市恒裕竹木开发有限公司 一种卷制式竹木吸管及其加工工艺和加工装置
CN210227707U (zh) * 2019-08-03 2020-04-03 百竹行（福清）竹木有限公司 竹皮一次性环保吸管
WO2020217256A1 (en) * 2019-04-24 2020-10-29 Saji Varghese Bio-degradable food handling devices and systems and methods for making the devices

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1327940C (zh) * 2003-07-04 2007-07-25 中国科学院上海原子核研究所 管式超滤膜元件卷管、成膜同步连续制备工艺
CN200964543Y (zh) * 2006-10-11 2007-10-24 魏波 天然竹、木墙纸
WO2009015599A1 (fr) * 2007-07-31 2009-02-05 Yongwei Wu Matériau composé en segments de bambou et son procédé de fabrication
CN201079972Y (zh) * 2007-07-31 2008-07-02 南京绿树林环保包装科技有限公司 一种竹制复合型材
CN102600731A (zh) * 2012-03-20 2012-07-25 北京坎普尔环保技术有限公司 同步外压管式膜制备方法
CN103753900A (zh) * 2014-01-21 2014-04-30 冯桔红 一种柔性装饰木皮
CN203979679U (zh) * 2014-07-25 2014-12-03 孔少云 一种一体塑钢管组件
CN204665313U (zh) * 2015-05-05 2015-09-23 浙江鑫宙竹基复合材料科技有限公司 竹缠绕复合烟囱
CN105546230B (zh) * 2016-02-02 2018-05-15 浙江鑫宙竹基复合材料科技有限公司 一种秸秆竹缠绕复合管及其制备方法
CN105715881B (zh) * 2016-04-13 2019-04-05 浙江鑫宙竹基复合材料科技有限公司 一种超大口径的竹缠绕复合管及其制造方法
CN107160505A (zh) * 2017-06-09 2017-09-15 福建农林大学 一种黑白方格薄竹墙体装饰材料的加工方法
JP2020006131A (ja) * 2018-06-27 2020-01-16 日本製紙株式会社 紙筒
CN109094115A (zh) * 2018-08-01 2018-12-28 常州市诚鑫环保科技有限公司 纸塑吸管及其制造方法
CN209152984U (zh) * 2018-08-27 2019-07-26 天津市一玛防护材料有限公司 一种环保型一次性吸管
KR102520702B1 (ko) * 2018-08-31 2023-04-11 홍익씨엠에스 주식회사 종이 스트로 제조방법
CN109227826A (zh) * 2018-10-19 2019-01-18 南京林业大学 一种竹弹簧架的制造方法及其应用
CN109465935B (zh) * 2018-11-30 2021-05-14 林仙珠 一种竹木质吸管及制造方法
KR102176032B1 (ko) * 2019-02-18 2020-11-06 (주)리페이퍼 친환경 종이 빨대의 제조방법 및 이에 의해 제조된 친환경 종이 빨대
CN210930728U (zh) * 2019-08-19 2020-07-07 张晓宁 秸秆吸管

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101532592A (zh) * 2009-04-10 2009-09-16 芜湖圣弗兰玻璃钢有限公司 一种环保玻璃钢管及其生产方法
CN101947803A (zh) * 2010-02-09 2011-01-19 芜湖圣弗兰玻璃钢有限公司 直竹条增强竹复管的制备方法
CN105650363A (zh) * 2016-01-03 2016-06-08 南京林业大学 一种竹制复合管及其制造方法
WO2020217256A1 (en) * 2019-04-24 2020-10-29 Saji Varghese Bio-degradable food handling devices and systems and methods for making the devices
CN110126050A (zh) * 2019-06-17 2019-08-16 怀化市恒裕竹木开发有限公司 一种卷制式竹木吸管及其加工工艺和加工装置
CN210227707U (zh) * 2019-08-03 2020-04-03 百竹行（福清）竹木有限公司 竹皮一次性环保吸管

Also Published As

Publication number Publication date
CN113878681A (zh) 2022-01-04
CN112518930B (zh) 2021-10-08
CN113829452A (zh) 2021-12-24
CN113878681B (zh) 2023-05-23
CN112518930A (zh) 2021-03-19
CN113829452B (zh) 2023-04-14

Similar Documents

Publication Publication Date Title
WO2022126853A1 (zh) 一种竹吸管加工方法
US6159134A (en) Methods for manufacturing a paint roller with integrated core and cover
WO2005103432A1 (fr) Lame de jalousie en bambou
USRE46070E1 (en) Methods for manufacturing a paint roller with grooved substrate
EP4035572A1 (en) Bamboo straw processing method
JPS6239982B2 (zh)
US2572924A (en) Hollow plastic product and method of making the same
CA3139045C (en) Bamboo straw machining method
EP0059026B1 (en) Improvements in wood veneers
WO2014139473A1 (zh) 一种竹集成材的制造方法
CN212242384U (zh) 一种环保型瓦楞纸板涂胶压合装置
CN114274596A (zh) 双层纸管连续成型加工设备
CN108115796A (zh) 一种竹圆柱建筑材料的加工方法
CN220529740U (zh) 一种天然复合吸管
CN111873091A (zh) 人造基材与胶浸渍木皮的复合板材及生产工艺
CN2715944Y (zh) 一种用于加工叠层竹、木片成圈的装置
TWI752710B (zh) 表面可止滑的紙筷子及其製造方法
CN213909612U (zh) 一种多层式竹吸管
KR102654558B1 (ko) 원목 빨대 제조 방법
CN217145101U (zh) 双通道层叠式纸管成型加工设备
CN102774015A (zh) 一种风机叶片后缘富树脂的消除方法
CN207014519U (zh) 竹篾条定位排列装置
RU2400355C1 (ru) Способ изготовления облицованной гнутой детали фасада
JP3064334U (ja) 敷居用滑り材
CN112760896A (zh) 一种高自动化布料压边设备

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2021570174

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2021814663

Country of ref document: EP

Effective date: 20211206

ENP Entry into the national phase

Ref document number: 2021258025

Country of ref document: AU

Date of ref document: 20210220

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE