TWI691294B - Double beveled paper straw and its forming method - Google Patents

Abstract

The invention relates to a double-beveled paper straw and its forming method, which is firstly formed by a paper material into a long hollow pipe body of a preset pipe diameter through a machine, and then the long hollow pipe body is cut into a preset length A paper straw, and then cut one end of the paper straw first at the first bevel, then cut the second bevel, and the first angle of the first bevel relative to the vertical plane of the paper straw (θ1) Less than the second included angle (θ2) of the second hypotenuse with respect to the vertical plane of the paper straw, and the third included angle (θ3) between the first oblique edge and the second oblique edge is less than 90 degrees to form an acute puncture End, and then a paper straw that can easily pierce the beverage cup can be obtained.

Description

Double beveled paper straw and its forming method

The invention relates to the technical field of a straw, in particular to a paper straw that easily pierces a beverage cup.

According to the press, in view of the fact that plastic products cannot be digested by the earth, which pollutes and wreak havoc on the environment we live in, paper food containers have become popular, and everyone advocates the use of paper food containers to protect the environment we live in.

However, the paper container has the disadvantage of insufficient strength. As shown in FIG. 5, there are existing paper straws 4 on the market. In order to allow the paper straw 4 to pierce the mouth seal of the beverage cup, a paper straw 4 The cutter cuts a knife to form a single beveled edge 41. However, the puncture end 42 formed by the beveled edge 41 is arc-shaped and not sharp enough, and if the paper used is not hard enough, it is easy to dent and let the paper It is difficult for the straw 4 to pierce the mouth seal of the beverage cup to suck the beverage.

Because the paper straw 4 mentioned above has a problem that it is difficult to pierce the sealing film of the mouth of the beverage cup, another paper straw 5 as shown in FIG. 6 appears on the market. Because of the strength of the paper straw 5 Due to structural problems, the puncture end 51 with obtuse angle θ (two puncture ends 51 in total) can only be cut at the one end by cutting with a knife twice, if the puncture end with a sharp acute angle θ'is to be cut 51 (the dotted line in Figure 6), due to the paper strength problem, when the cutter cuts the first knife, the paper strength of the puncture end 51 will be weakened. When the cutter wants to cut the second knife, the cutter will be easily crushed. The puncture end 51 has the opposite effect, so the puncture end 51 at the acute angle θ′ of the paper straw is almost impossible to be cut by the existing cutter; although, the paper straw 5 of the second puncture end 51 with an obtuse angle θ is better than the foregoing The paper straw 4 is easy to pierce the sealing film of the beverage cup, but overall, the obtuse angle θ piercing end 51 of the paper straw 5 still has a problem that it is more difficult to pierce the sealing film of the beverage cup.

Therefore, in view of the above problem that it is difficult for the two paper straws to pierce the sealing film of the cup of the beverage cup, the present invention is a great effort to develop a double-beveled paper straw and its forming method, so the purpose of the present invention is to provide : A paper straw forming method with a sharp puncture end can be manufactured; another object of the present invention is to provide: a practical and environmentally friendly paper straw structure that is easy to puncture.

In order to achieve the above object, the present invention uses the following technical means:

The invention relates to a double-beveled paper straw, which comprises: a paper pipe body, which is formed from paper material into a paper pipette with a preset pipe diameter and length, and the paper pipe body has a vertical end surface; and a puncture end , Is a small semi-ellipse area composed of a first hypotenuse of unequal length, a large semi-ellipse area composed of a second hypotenuse and is asymmetrical to the center line of the paper tube body, by the small semi-ellipse area, the large semi-ellipse area To form two sharp points.

Both the small semi-ellipse area and the large semi-ellipse area described above have cross sections of different sizes.

The double-beveled paper straw, wherein the first angle (θ1) of the first oblique side relative to the vertical plane of the paper straw is smaller than the second angle (θ2) of the second oblique side relative to the vertical plane of the paper straw, and The third included angle (θ3) between the first beveled edge and the second beveled edge is less than 90 degrees to form two sharp points of the puncture end.

The invention also relates to a method for manufacturing the above-mentioned double-beveled paper straw and its forming method, which comprises: a paper straw forming step, which is to form a long hollow pipe body with a preset pipe diameter from a paper material through a machine; The step is to cut the long hollow tube into a paper straw with a preset length; a piercing end forming step is to cut one end of the paper straw first to form the first beveled edge of the piercing end and its small half Ellipse area, and then cut the second knife to form the second oblique edge of the puncture end and its large semi-ellipse area, and the first included angle (θ1) of the first oblique edge relative to the vertical plane of the paper straw is smaller than the second oblique edge With respect to the second included angle (θ2) of the vertical plane of the paper straw, and the third included angle (θ3) between the first oblique side and the second oblique side is less than 90 degrees, it is formed according to the small semi-ellipse area and the large semi-ellipse area Two sharp points of puncture.

The double oblique paper straw and its forming method, wherein the first angle (θ1) is set between 45 degrees and 55 degrees.

The double oblique paper straw and its forming method, wherein the second angle (θ2) is set between 55 degrees and 75 degrees.

The double oblique paper straw and its forming method, wherein the third angle (θ3) is set between 50 degrees and 80 degrees.

Both the small semi-ellipse area and the large semi-ellipse area described above have cross sections of different sizes.

The present invention uses the above technical means to achieve the following effects: 1. The paper straw forming method of the present invention mainly considers the paper strength of the puncture end of the paper straw (paper tube body), and pre-cuts the first small inclination angle (θ1) After the knife, cut the second knife with a large inclination angle (θ2) under the condition that the structure strength of the puncture end of the paper straw is less, so that the puncture end with two sharp points can be produced with the small semi-ellipse area and the large semi-ellipse area Paper straws. 2. The hollow pipe body of the paper straw of the present invention can form two sharp point puncturing ends, and the paper weight of the paper straw material of any sharp point matched with the hollow pipe body is 200g/m ² ~500g/m ² . To obtain a better focus, it is easy to pierce the mouth seal of the beverage cup, and it will not dent, which is quite practical and environmentally friendly.

First of all, please refer to FIG. 1, the present invention relates to a double-beveled paper straw and its forming method A. It mainly provides a paper straw with an acute-angle piercing end as shown in FIG. 2, which includes: a paper straw The forming step a, a cutting step b, and a piercing end forming step c.

The paper straw forming step a is to form a long hollow pipe body with a preset pipe diameter from a paper material through a machine. The aforementioned machine refers to a special machine for manufacturing paper straws commonly available on the market.

In the cutting step b, the long hollow tube is cut into a paper straw with a preset length, that is, a paper tube 1 with a puncture end 3 that has not yet been formed; usually, the cutting machine automatically cuts in sections The elongated hollow tube is divided into several paper tubes 1.

In the step c of forming the puncture end, one end of the paper straw (paper tube body 1) is cut first to form a small semi-ellipse area 311 formed by the first oblique edge 31 of the puncture end 3, and then The two blades form a large semi-elliptical area 321 with the second oblique edge 32 forming the puncture end 3, and the first angle (θ1) of the first oblique edge 31 with respect to the vertical plane of the paper straw (paper tube body 1) is smaller than the The second angle (θ2) of the second hypotenuse 32 relative to the vertical surface of the paper straw (paper tube body 1), and the third angle (θ3) between the first oblique edge and the second oblique edge is less than 90 degrees, The puncturing ends 3 of the two sharp points are formed by different cross-sections of the small semi-ellipse region 311 and the large semi-ellipse region 321.

Preferably, as shown in FIGS. 3 and 4, the first included angle (θ1) is set between 45 degrees and 55 degrees, and the second included angle (θ2) is set between 55 degrees and 75 degrees , Where the third included angle (θ3) is set between 50 degrees and 80 degrees, the puncture end 31 of the two sharp points of the preferred paper straw acute angle θ3 can be obtained, allowing the two sharp points to match the paper of the hollow tube body The straw paper weight is 200g/m ² ~500g/m ² , which can provide an excellent focus point and easily pierce the mouth seal film of the beverage cup, so that consumers can easily drink the beverage.

With the above-mentioned double-bevel paper straw and its forming method A, the paper strength of the puncture end 3 of the paper straw (paper tube 1) is mainly considered, and the first knife with a small inclination angle (θ1) is pre-cut before affecting the paper When the structure strength of the straw puncture end 31 is low, let the paper material of the puncture end 3 have sufficient strength and then cut the second knife with a large inclination angle (θ2) without being crushed, so that a sharp two-pointed sharp can be produced The paper straw of the punctured end 3 at the point, and the manufactured double-beveled paper straw B, as shown in FIG. 2 and FIG.

The paper tube body 1 is formed from a paper material into a paper straw with a preset tube diameter and length, and the paper tube body 1 has a vertical end surface 2. and

The puncture end 3 is composed of a first oblique edge 31 and a second oblique edge 32, which are composed of two semi-elliptical cross-sections of different sizes, and the first oblique edge 31 and the second oblique edge 32 of unequal length are asymmetric The center line of the paper tube 1 to form two sharp points of the puncture end 3; and the first angle (θ1) of the first oblique edge 31 relative to the vertical plane of the paper straw is smaller than that of the second oblique edge 32 relative to the The second included angle (θ2) of the vertical plane of the paper straw, and the third included angle (θ3) between the first oblique side 31 and the second oblique side 32 is less than 90 degrees to form the puncture end 3 with the two sharp points, The two sharp points are matched with the circumferential hardness of the hollow tube. The straw paper weight is 200g/m ² ~500g/m ² , which can provide an excellent focus point and easily pierce the sealing film of the beverage cup. .

In summary, the present invention relates to a "double-beveled paper straw and its forming method", and the structural structure and manufacturing process of its embodiments have not been seen in various books or public use, and it conforms to the patent application requirements. Mingjian, granting patents as soon as possible, to pray for it;

To be clear, the above are the specific embodiments of the case and the technical principles used. If the changes made according to the concept of the case, the resulting functional effects have not exceeded the spirit covered by the description and drawings, All should be within the scope of this case, and Chen Ming.

[this invention] A: Double beveled paper straw and its forming method a, b, c: step flow B: Double beveled paper straw 1: Paper tube 2: vertical end face 3: puncture end 31: first hypotenuse 311: Small semi-elliptical area 32: second hypotenuse 321: Large semi-elliptical area θ1: first included angle θ2: second included angle θ3: third included angle

Figure 1: Flow chart of the method for forming a double-beveled paper straw of the present invention. Figure 2: The plan view of the double beveled paper straw of the present invention. Figure 3: Partially enlarged view of Figure 2 of the present invention. Figure 4: Partly enlarged front and side views of Figure 2 of the present invention. Figure 5: Front and side views of the conventional paper straw structure. Figure 6: Front and side views of another conventional paper straw structure.

1: Paper tube

3: puncture end

31: first hypotenuse

32: second hypotenuse

θ 1: first included angle

θ 2: second angle

θ 3: third angle

Claims (10)

A double beveled paper straw system includes: A paper tube body formed from paper material into a paper straw with a preset tube diameter and length, and the paper tube body has a vertical end surface; and A puncture end is composed of a first semi-ellipse area of unequal length, a second semi-ellipse area, and a second semi-ellipse area forming a large semi-ellipse area and asymmetrical to the center line of the paper tube body, To form two sharp points. The double-beveled paper straw according to claim 1, wherein the first included angle (θ1) of the first oblique edge relative to the vertical plane of the paper straw is smaller than the second included angle of the second oblique side relative to the vertical plane of the paper straw ( θ2), and the third included angle (θ3) between the first oblique side and the second oblique side is less than 90 degrees, so as to form two sharp point piercing ends. The double-beveled paper straw according to claim 1, wherein both the small semi-ellipse area and the large semi-ellipse area are set to have different sizes of cross sections. The double-beveled paper straw according to claim 1, wherein the paper straw of the paper tube body has a paper weight of 200 g/m ² to 500 g/m ² . A molding method for manufacturing a double-beveled paper straw according to any one of claims 1 to 4 includes: A paper straw forming step is to form a long hollow tube body with a preset tube diameter and a certain hardness from paper materials through a machine; One cutting step is to cut the long hollow tube into a paper straw with a preset length; and A piercing end forming step is to cut one end of the paper straw first to form the first hypotenuse of the piercing end and its small semi-ellipse area, and then cut the second knife to form the second hypotenuse of the piercing end and most of it An elliptical area, and the first angle (θ1) of the first hypotenuse relative to the vertical plane of the paper straw is smaller than the second angle (θ2) of the second hypotenuse relative to the vertical plane of the paper straw, and the first hypotenuse 3. The third included angle (θ3) between the second hypotenuses is less than 90 degrees, and the small semi-ellipse area and the large semi-ellipse area form two sharp point puncturing ends. The method for forming a double-beveled paper straw as described in claim 5, wherein the first angle (θ1) is set between 45 degrees and 55 degrees. The method for forming a double-beveled paper straw as described in claim 5, wherein the second angle (θ2) is set between 55 degrees and 75 degrees. The method for forming a double-beveled paper straw as described in claim 5, wherein the third angle (θ3) is set between 50 degrees and 80 degrees. The method for forming a double-beveled paper straw as described in claim 5, wherein the paper straw of the hollow pipe body has a grammage of 200 g/m ² to 500 g/m ² . The method for forming a double-beveled paper straw as described in claim 5, wherein both the small semi-ellipse area and the large semi-ellipse area are set to have different sizes of cross sections.

Images