CN112297514A - Large-scale production method of oblique-mouth U-shaped paper straw - Google Patents
Large-scale production method of oblique-mouth U-shaped paper straw Download PDFInfo
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- CN112297514A CN112297514A CN202011047210.8A CN202011047210A CN112297514A CN 112297514 A CN112297514 A CN 112297514A CN 202011047210 A CN202011047210 A CN 202011047210A CN 112297514 A CN112297514 A CN 112297514A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31C1/00—Making tubes or pipes by feeding at right angles to the winding mandrel centre line
Abstract
The invention discloses a large-scale production method of an oblique U-shaped paper straw, which comprises the following steps: s1: cutting the base paper, namely cutting the base paper into paper suitable for producing paper straws; s2: rolling the paper into a pipe, namely rolling the cut paper and the glue into a paper suction pipe through equipment; s3: aging the tube blank, and controlling the water content of the paper suction tube; s4: cutting the tube blank into inclined openings, and cutting the straight tube into inclined tubes; s5: forming the U-shaped paper suction pipe, and bending and forming the straight pipe to obtain the U-shaped paper suction pipe; s6: packaging, drying, packaging, and storing. The method can be used for mass production of the U-shaped paper straws in a large scale, and the produced U-shaped paper straws have good quality.
Description
Technical Field
The invention relates to the technical field of paper suction pipe production, in particular to a large-scale production method of an oblique U-shaped paper suction pipe.
Background
In recent years, paper straws have come into the field of vision as a substitute for plastic straws due to the demands for environmental protection and reduction of pollution of plastic products. After many years of rapid development, the demand for derivatives of paper drinking straws is increasing in the market. The oblique U-shaped paper straw is used as the variety with the largest consumption in the milk drinking industry, and large-scale batch production is urgently needed.
The existing paper suction pipe forming technology mainly adopts physical extrusion cold forming, and the problem of cracking of a thread part of a common paper suction pipe blank in the application of mass production of U-shaped paper suction pipes is serious. Therefore, although there are U-shaped paper straw samples in the market, in fact, all the samples belong to hand proofing, and real mass production cannot be realized, and a production method capable of mass production of U-shaped paper straws is urgently needed at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a large-scale production method of the oblique U-shaped paper straws, which can be used for producing the U-shaped paper straws in large scale and in batch, and the produced U-shaped paper straws have better quality.
In order to achieve the purpose, the invention discloses a large-scale production method of an inclined-opening U-shaped paper straw, which comprises the following steps:
s1: cutting the base paper, namely cutting the base paper into paper suitable for producing paper straws;
s2: rolling the paper into a pipe, namely rolling the cut paper and the glue into a paper suction pipe through equipment;
s3: aging the tube blank, and controlling the water content of the paper suction tube;
s4: cutting the tube blank into inclined openings, and cutting the straight tube into inclined tubes;
s5: forming the U-shaped paper suction pipe, and bending and forming the straight pipe to obtain the U-shaped paper suction pipe;
s6: packaging, drying, packaging, and storing.
Further, in step S1, slit paper of three sizes including an inner layer paper, a middle layer paper and an outer layer paper is slit.
Further, the width of the outer layer paper is not less than that of the middle layer paper, and the width of the middle layer paper is not less than that of the inner layer paper.
Furthermore, the gram weight of the inner layer paper is 110g to 130g, the gram weight of the middle layer paper is 110g to 130g, and the gram weight of the outer layer paper is 50g to 70 g.
Further, in step S2, the roll pipe forming is performed by spirally overlapping three or four layers of paper with edible glue, the spiral formed by the inner layer of paper does not overlap with itself and has a gap, the spiral formed by the middle layer of paper overlaps with itself, and the spiral formed by the outer layer of paper overlaps with itself.
Further, in step S3, the paper straw is placed in a constant temperature and humidity room to perform a moisture content stabilizing aging treatment, and the moisture content of the paper straw after the aging treatment is 5% to 18%.
Further, in step S4, the straight tube is slit into a tube blank of a tube with a bevel cut at an angle of 35 ° to 65 °.
Further, in step S5, a forming machine is used to perform the tube bending forming, the rotation speed of the forming machine is 800r/min, the tube bending forming is performed by cold extrusion through a forming wheel and a forming needle of the forming machine, and the forming single-side deformation depth is 0.3 mm.
The bevel U-shaped paper suction pipe can be produced on a large scale, can be produced in batch, and has the following advantages: the tungsten steel blade is sharp, burrs are not formed on two sides of the cut paper, the fluctuation of the inner diameter of the tube blank is small when the tube is coiled, and the cracking tendency of the thread position is reduced when the U-shaped paper suction tube is cold-formed; the inner layer paper and the middle layer paper are made of high-gram-weight paper, so that the strength of the U-shaped paper straw can be obviously improved, and the phenomenon that the U-shaped paper straw is flattened when being packaged on a packaging machine is reduced; the middle layer paper and the outer layer paper are mutually overlapped, so that the interaction between the paper is improved, the shearing force in thread forming is uniformly distributed, and the cracking tendency of a thread part is reduced; through tube blank aging pretreatment, the water content of the tube blank is kept at a certain level, the optimal range is selected between the elongation of paper fibers and the strength of the tube blank, and the thread cracking tendency and the thread folding phenomenon of the U-shaped paper suction tube are reduced.
Drawings
The present invention will be further described and illustrated with reference to the following drawings.
FIG. 1 is a flow chart of a mass production method of a beveled U-shaped paper straw according to a preferred embodiment of the present invention;
FIG. 2 is a view showing the structure of a U-shaped paper drinking straw with a slant opening;
FIG. 3 is a schematic view of the three layers of paper adhered and overlapped on the wall of the oblique U-shaped paper straw.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Example 1: the scale production of the three-layer 4.8 x 150 beveled U-shaped paper straws comprises the following steps:
s1: selecting raw paper with the diameter of 1m, and slitting the raw paper into paper with three widths without burrs at the edge by a high-speed tungsten steel blade on a slitting machine, wherein the paper comprises inner-layer paper with the width of 11.5mm, middle-layer paper with the width of 13mm and outer-layer paper with the width of 13mm, the gram weight of the inner-layer paper is 120g, the gram weight of the middle-layer paper is 120g, and the gram weight of the outer-layer paper is 60 g.
S2: and spirally overlapping and molding the three layers of cut paper and edible glue with the viscosity of 6000cp on a paper suction pipe straight-tube machine at the speed of about 50m/min, wherein the outer side of the inner layer paper is bonded with the inner side of the middle layer paper, the outer side of the middle layer paper is bonded with the inner side of the outer layer paper, and no glue exists on the outer side of the outer layer paper. The inner layer paper has no lap joint, and the gap is 0.2 mm. The middle layer paper is overlapped by 0.3 mm. The outer layer paper is overlapped by 0.4 mm. And then cutting the formed long straight pipe according to joints.
S3: the straight pipe is arranged in a special turnover box for carrying out the water content stabilizing aging treatment, so that the water content of the pipe blank of the straight pipe is in a certain range and stable.
S4: the method comprises the steps of manually transferring a straight tube blank to a bevel connection device, cutting the straight tube into bevel connection tube blanks with an angle of 50 degrees, storing the bevel connection tube blanks into a special turnover box, and entering the special turnover box into a constant temperature and humidity room to perform water content stabilizing and aging treatment again.
S5: and conveying the bevel pipe blank to forming machine equipment for pipe bending forming. The rotating speed of the forming machine is 800r/min, the cold extrusion forming is carried out through a forming wheel and a forming needle, and the single side of the deformation depth is about 0.3 mm.
S6: and (4) bagging, storing and transferring the formed paper straw tube blank to a packaging machine for U-shaped bending packaging.
The bevel U-shaped paper suction pipe can be produced on a large scale, can be produced in batch, and has the following advantages: the tungsten steel blade is sharp, burrs are not formed on two sides of the cut paper, the fluctuation of the inner diameter of the tube blank is small when the tube is coiled, and the cracking tendency of the thread position is reduced when the U-shaped paper suction tube is cold-formed; the inner layer paper and the middle layer paper are made of high-gram-weight paper, so that the strength of the U-shaped paper straw can be obviously improved, and the phenomenon that the U-shaped paper straw is flattened when being packaged on a packaging machine is reduced; the middle layer paper and the outer layer paper are mutually overlapped, so that the interaction between the paper is improved, the shearing force in thread forming is uniformly distributed, and the cracking tendency of a thread part is reduced; through tube blank aging pretreatment, the water content of the tube blank is kept at a certain level, the optimal range is selected between the elongation of paper fibers and the strength of the tube blank, and the thread cracking tendency and the thread folding phenomenon of the U-shaped paper suction tube are reduced.
The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The scope of the invention is defined by the claims.
Claims (8)
1. A large-scale production method of an oblique U-shaped paper straw is characterized by comprising the following steps:
s1: cutting the base paper, namely cutting the base paper into paper suitable for producing paper straws;
s2: rolling the paper into a pipe, namely rolling the cut paper and the glue into a paper suction pipe through equipment;
s3: aging the tube blank, and controlling the water content of the paper suction tube;
s4: cutting the tube blank into inclined openings, and cutting the straight tube into inclined tubes;
s5: forming the U-shaped paper suction pipe, and bending and forming the straight pipe to obtain the U-shaped paper suction pipe;
s6: packaging, drying, packaging, and storing.
2. The method for mass production of the straw with the bevel U-shaped opening according to claim 1, wherein in step S1, the slit paper with three specifications including the inner layer paper, the middle layer paper and the outer layer paper is slit.
3. The mass production method of the straw with the bevel connection U-shaped paper as claimed in claim 2, wherein the width of the outer layer paper is not less than that of the middle layer paper, and the width of the middle layer paper is not less than that of the inner layer paper.
4. The method for mass production of the U-shaped paper straw with the inclined opening as claimed in claim 2, wherein the gram weight of the inner layer paper is 110 g-130 g, the gram weight of the middle layer paper is 110 g-130 g, and the gram weight of the outer layer paper is 50 g-70 g.
5. The method for mass production of the straw with the bevel U-shaped section according to claim 2, wherein in step S2, the straw is formed by spirally laminating three or four layers of paper and edible glue, the spiral formed by the inner layer of paper has no gap with the self-lapping, the spiral formed by the middle layer of paper has the self-lapping, and the spiral formed by the outer layer of paper has the self-lapping.
6. The method for mass production of the inclined-opening U-shaped paper straws according to claim 1, wherein in step S3, the paper straws are placed in a constant temperature and humidity room for moisture content stabilization and aging treatment, and the moisture content of the paper straws subjected to the aging treatment is 5% -18%.
7. The method for mass production of the paper straws with the bevel U-shaped opening as claimed in claim 1, wherein in step S4, the straight tube is slit into the tube blank of the bevel tube, and the slitting angle is 35-65 °.
8. The method for mass production of the beveled U-shaped paper straw as claimed in claim 1, wherein in step S5, a forming machine is used for bending the tube, the rotating speed of the forming machine is 800r/min, and the forming machine is used for cold extrusion of the bent tube through a forming wheel and a forming needle, so that the forming single-side deformation depth is 0.3 mm.
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| CN202011047210.8A CN112297514A (en) | 2020-09-29 | 2020-09-29 | Large-scale production method of oblique-mouth U-shaped paper straw |
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| CN202011047210.8A CN112297514A (en) | 2020-09-29 | 2020-09-29 | Large-scale production method of oblique-mouth U-shaped paper straw |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1495631A (en) * | 1974-04-16 | 1977-12-21 | Mitsubishi Petrochemical Co | Method for manufacturing a spiral tube |
| CH688344A5 (en) * | 1994-04-26 | 1997-08-15 | Hakle Ag | Core for paper roll |
| TWM261367U (en) * | 2004-06-18 | 2005-04-11 | Huei-Ling Chen | Paper tube structure |
| CN108215338A (en) * | 2016-12-21 | 2018-06-29 | 达纺企业股份有限公司 | paper tube structure and its manufacturing method |
| CN109130328A (en) * | 2018-10-31 | 2019-01-04 | 瑞安市晨星包装机械有限公司 | Paper suction pipe bending machine |
| CN109371744A (en) * | 2018-10-22 | 2019-02-22 | 浙江华丰纸业科技有限公司 | A kind of production technology of paper suction pipe |
| CN109431212A (en) * | 2018-11-08 | 2019-03-08 | 义乌市蒙特日用品有限公司 | A kind of paper suction pipe of 90 degree of elbows of band |
| CN208946267U (en) * | 2018-10-29 | 2019-06-07 | 瑞安市苏莱特机械厂 | Paper suction pipe cuts angle device |
| CN109986814A (en) * | 2017-12-29 | 2019-07-09 | 义乌市双童日用品有限公司 | A kind of suction pipe full-automatic production method and automatic production line |
| CN110450212A (en) * | 2019-08-15 | 2019-11-15 | 庄孔庆 | A kind of paper suction pipe bends, cuts the process of angle |
| CN211312014U (en) * | 2019-09-03 | 2020-08-21 | 厚旌盛精化股份有限公司 | Paper material and paper straw |
-
2020
- 2020-09-29 CN CN202011047210.8A patent/CN112297514A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1495631A (en) * | 1974-04-16 | 1977-12-21 | Mitsubishi Petrochemical Co | Method for manufacturing a spiral tube |
| CH688344A5 (en) * | 1994-04-26 | 1997-08-15 | Hakle Ag | Core for paper roll |
| TWM261367U (en) * | 2004-06-18 | 2005-04-11 | Huei-Ling Chen | Paper tube structure |
| CN108215338A (en) * | 2016-12-21 | 2018-06-29 | 达纺企业股份有限公司 | paper tube structure and its manufacturing method |
| CN109986814A (en) * | 2017-12-29 | 2019-07-09 | 义乌市双童日用品有限公司 | A kind of suction pipe full-automatic production method and automatic production line |
| CN109371744A (en) * | 2018-10-22 | 2019-02-22 | 浙江华丰纸业科技有限公司 | A kind of production technology of paper suction pipe |
| CN208946267U (en) * | 2018-10-29 | 2019-06-07 | 瑞安市苏莱特机械厂 | Paper suction pipe cuts angle device |
| CN109130328A (en) * | 2018-10-31 | 2019-01-04 | 瑞安市晨星包装机械有限公司 | Paper suction pipe bending machine |
| CN109431212A (en) * | 2018-11-08 | 2019-03-08 | 义乌市蒙特日用品有限公司 | A kind of paper suction pipe of 90 degree of elbows of band |
| CN110450212A (en) * | 2019-08-15 | 2019-11-15 | 庄孔庆 | A kind of paper suction pipe bends, cuts the process of angle |
| CN211312014U (en) * | 2019-09-03 | 2020-08-21 | 厚旌盛精化股份有限公司 | Paper material and paper straw |
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Application publication date: 20210202 |