NZ761337A - Environmentally friendly straw and manufacturing method thereof - Google Patents
Environmentally friendly straw and manufacturing method thereofInfo
- Publication number
- NZ761337A NZ761337A NZ761337A NZ76133720A NZ761337A NZ 761337 A NZ761337 A NZ 761337A NZ 761337 A NZ761337 A NZ 761337A NZ 76133720 A NZ76133720 A NZ 76133720A NZ 761337 A NZ761337 A NZ 761337A
- Authority
- NZ
- New Zealand
- Prior art keywords
- tubular body
- leveling
- honing
- machine
- abrasive element
- Prior art date
Links
- 239000010902 straw Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 17
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention teaches an environmentally friendly straw and its manufacturing method. The straw includes a tubular body having a through channel inside connecting two openings respectively at two ends of the tubular body, an outer layer surrounding the tubular body between the two openings formed by a leveling machine, an inner layer, as an inner wall of the tubular body, surrounding the channel formed by a honing machine. The straw is manufactured by leveling the tubular body, and honing the channel by a honing machine. As such, a smooth layer between the channel and the tubular body is achieved so that the straw is convenient to clean and use.
Description
ENVIRONMENTALLY FRIENDLY STRAW AND MANUFACTURING METHOD
THEREOF BACKGROUND OF THE INVENTION
(a) Technical Field of the Invention
The present invention is generally related to straws, and more particular to an
environmentally friendly straw and its manufacturing method.
(b) Description of the Prior Art
For environmental protection, many countries prevent the use of plastic bags, cups, and
straws. Most people are also gradually used to bring their own bags, cups, and straws.
Cleaning for these food-related products is important. However, it is difficult to clean the
inner wall of a straw when it is dirty.
SUMMARY OF THE INVENTION
A major objective of the present invention is to employ a honing machine to polish an
inner wall of a straw so that the straw is convenient to clean and use.
To achieve the objective, the environmentally friendly straw includes a tubular body
having a through channel inside connecting two openings respectively at two ends of the
tubular body, an outer layer surrounding the tubular body between the two openings formed
by a leveling machine, an inner layer, as an inner wall of the tubular body, surrounding the
channel formed by a honing machine.
The straw is manufactured by first leveling the tubular body by a leveling machine so
as to enhance a straightness of the tubular body up to an accuracy below 0.01mm. The
leveled tubular body’s inner wall is then honed by a honing machine by reciprocally
threading a spinning abrasive element into the channel of the tubular body through the
openings. As such, a smooth inner layer between the channel and the tubular body having a
center line average roughness (Ra) below 0.025µ is achieved so that the straw is convenient
to clean and use.
The foregoing objectives and summary provide only a brief introduction to the present
invention. To fully appreciate these and other objects of the present invention as well as the
invention itself, all of which will become apparent to those skilled in the art, the following
detailed description of the invention and the claims should be read in conjunction with the
accompanying drawings. Throughout the specification and drawings identical reference
numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to
those versed in the art upon making reference to the detailed description and the
accompanying sheets of drawings in which a preferred structural embodiment incorporating
the principles of the present invention is shown by way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
is a perspective diagram showing an environmentally friendly straw according to
an embodiment of the present invention.
is a flow diagram showing the steps of manufacturing the environmentally
friendly straw of according to an embodiment of the present invention.
is a perspective diagram showing a leveling machine used in manufacturing the
environmentally friendly straw of
is a front-view diagram showing a scenario of the leveling machine of in
operation.
is a front-view diagram showing another scenario of the leveling machine of in operation.
is a perspective diagram showing how the environmentally friendly straw of is placed on a honing machine according to a first embodiment.
is a perspective diagram showing how an abrasive element is installed on the
honing machine of
is a perspective diagram showing a scenario of the environmentally friendly
straw of honed on the honing machine of
is a schematic diagram showing another scenario of the environmentally friendly
straw of honed on the honing machine of
is a perspective diagram showing the environmentally friendly straw of
after honing on the honing machine of
is a perspective diagram showing how abrasive elements are installed on a
honing machine according to a second embodiment of the present invention.
is a perspective diagram showing a scenario of the environmentally friendly
straw of honed on the honing machine of .
is a perspective diagram showing a scenario of placing the environmentally
friendly straw of on a honing machine according to a third embodiment of the present
invention.
is a perspective diagram showing another scenario of placing the
environmentally friendly straw of on the honing machine of .
is a perspective diagram showing a scenario of the environmentally friendly
straw of honed on the honing machine of .
is a perspective diagram showing a scenario of the environmentally friendly
straw of honed on a honing machine according to a fourth embodiment of the present
invention.
is a perspective diagram showing a scenario of the environmentally friendly
straw of honed on a honing machine according to a fifth embodiment of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following descriptions are exemplary embodiments only, and are not intended to
limit the scope, applicability or configuration of the invention in any way. Rather, the
following description provides a convenient illustration for implementing exemplary
embodiments of the invention. Various changes to the described embodiments may be made
in the function and arrangement of the elements described without departing from the scope
of the invention as set forth in the appended claims.
As shown in FIGS. 1 to 10, an environmentally friendly straw according to a first
embodiment of the present invention includes the following components.
A tubular body 1 has a through channel 12 inside connecting two openings 11
respectively at two ends of the tubular body 1. The tubular body 1 is made of metal, glass, or
other material.
An inner layer 13, as an inner wall of the tubular body 1, surrounds the channel 12. The
inner layer 13 is formed by a honing machine 2. In the present embodiment, the honing
machine 2 is an upright honing machine 2. Alternatively, the honing machine 2 may also be
a horizontal honing machine 2.
The honing machine 2 includes a honing driving member 21, a rotational member 22,
and at least an abrasive element 23. The rotational member 22 is joined to and engaged by
the honing driving member 21, and the abrasive element 23 is configured around the
rotational member 22. The honing driving member 21 therefore drives the rotational member
22 and the abrasive element 23 as well to turn. In the present embodiment, the honing driving
member 21 is a motor, and the abrasive element 23 is one of sandpaper, millstone, sand strip,
and foam sandpaper. The present embodiment uses sandpaper as example.
In the present embodiment, the honing machine 2 further includes a first reciprocal
member 24 engaging the rotational member 22 into a reciprocal movement.
The environmentally friendly straw further includes an outer layer 14 around the
tubular body 1 between the two openings 11. The outer layer 14 is formed by a leveling
machine 3.
The leveling machine 3 includes a number of support elements 31 holding the
environmentally friendly straw in between, a leveling driving member 32 positioned to a side
to the support elements 31 (the present embodiment has a rotatable cylindrical as an example
of the leveling driving member 32), a leveling element 33 configured to a bottom end of the
leveling driving member 32, and a straightness measurement member 34 measuring a
levelness of the tubular body 1. A bottom side of the leveling element 33 has a trough 331.
Inside and along the trough 331, there is a protrusion 332 and two recesses 333 next to the
two ends of protrusion 332, respectively. A convex shape is thereby formed inside the trough
331. A cushion element 311 is beneath each support element 31.
According to the above description, the tubular body 1 is thereby polished by the
honing machine 2 to form a smooth inner layer 13 so that the environmentally friendly straw
may be cleaned thoroughly.
The environmentally friendly straw is manufactured through the following steps:
(a) providing a tubular body, where the tubular body has a channel inside connecting
two openings at two ends of the tubular body, respectively;
(b) placing the tubular body on a leveling machine, where the tubular body is supported
by the support elements contacting the openings, respectively;
(c) leveling the tubular body by a leveling element driven by a leveling driving member
of the leveling machine against the tubular body, where a straightness of the tubular body is
measured by a straightness measurement member;
(d) placing the leveled tubular body on a honing machine;
(e) configuring at least an abrasive element on a rotational member of the honing
machine;
(f) spinning the abrasive element by the rotational member rotated by a honing driving
member of the honing machine;
(g) threading the abrasive element into the channel through the openings;
(h) moving the abrasive element reciprocally inside the channel; and
(i) forming an inner layer around the channel inside the tubular body by the abrasive
element’s reciprocal movement.
Ordinarily, a metallic tube would be leveled before it is out of factory. However, this
leveling can only achieve 0.05mm~01mm deformation for the tubular body 1. Honing a
tubular body with this amount of deformation is rather difficult and not cost-effective, as the
smoothness is hard to control, working time is prolonged. Therefore, in the present invention,
the tubular body 1 is first further leveled on the leveling machine 3 before honing.
For this leveling work, the tubular body 1 is first supported between support elements
31, and its straightness is measured by the straightness measurement member 34 to detect
places along the tubular body 1 having greater deformation. Then, the leveling driving
member 32 drives the leveling element 33, for example, through a hydraulic means, to level
the tubular body 1.
The leveling element 33’s trough 331 has a semi-cylindrical shape compatible to the
tubular body 1’s shape. When leveling is performed, the trough 331 is aligned with the
tubular body 1 and, through the recesses 333, only the protrusion 332 inside the trough 331
would contact with the tubular body 1. In this way, the tubular body 1 would not be pressed
and deformed. Then, the tubular body 1, based on its own rigidness, is leveled by the
repeated contact of the leveling element 33. If the leveling driving member 32 exerts too
much a pressure, the support elements 31 would descend by compressing the cushion
element 311 so that the tubular body 1 would not be deformed. As such, the tubular body 1
may be leveled until its deformation is less than 0.01mm, and the subsequent honing can be
performed more smoothly.
Compared to ordinary honing by lathe or internal hole grinder, the reciprocal honing
after the above leveling may polish the inner layer 13 for further smoothness until the inner
layer 13 has a center line average roughness (Ra) below 0.025µ, conforming to the standard
of various nations. As the inner layer 13 is very smooth, the channel 12 is not clogged by
larger particles, is difficult to contaminate, and is more convenient to clean.
In the present embodiment, an upright honing machine 2 is used as an example.
Therefore, a step (c1) may be performed after the step (c), where the first reciprocal member
engages the rotational member and the abrasive element into a reciprocal movement to
conduct reciprocal honing. However, manual or other reciprocal operation is also possible.
As shown in FIGS. 11 and 12, a step (h1) may be conducted after the step (h) where,
after a first round of honing, the abrasive element 23a may be replaced by another abrasive
element 23a of a finer grid size, and a second round of honing is conducted.
As such, an initial honing is performed with an abrasive element 23a of a greater grit
size, and a second honing is conducted with abrasive element 23a of a finer grit size. In this
way, not only honing performance, but also honing accuracy is enhanced.
As shown in FIGS. 13 to 15, the honing machine 2b of this embodiment further
includes a second reciprocal member 25b disposed to a side of the rotational member 22b,
engaging the tubular body 1b into a reciprocal movement.
A step (f1) may be conducted after the step (f), where the second reciprocal member
drives the tubular body 1b to move reciprocally, so that it is honed by the spinning abrasive
element 23b.
This embodiment adopts a horizontal honing machine 2b, demonstrating that the
environmentally friendly straw may be manufactured using either upright or horizontal
honing machine 2b.
As shown in , another embodiment also involves a horizontal honing machine
2c. This embodiment, then, involves manually driving the tubular body 1c reciprocally
against the abrasive element 23c. This embodiment demonstrates that the honing of the
environmentally friendly straw can be performed manually without resorting to any
mechanical driving.
As shown in , another embodiment of the leveling machine has a leveling
driving member 32d manually operated by a wheel, demonstrating that the leveling driving
member 32d may be implemented in various ways.
While certain novel features of this invention have been shown and described and are
pointed out in the annexed claim, it is not intended to be limited to the details above, since it
will be understood that various omissions, modifications, substitutions and changes in the
forms and details of the device illustrated and in its operation can be made by those skilled in
the art without departing in any way from the claims of the present invention.
Claims (5)
1. A method of manufacturing a straw, comprising the steps of: (a) providing a tubular body, where the tubular body has a channel inside connecting two openings at two ends of the tubular body, respectively; 5 (b) placing the tubular body on a leveling machine, where the tubular body is supported by a plurality of support elements of the leveling machine contacting the openings, respectively; (c) leveling the tubular body by a leveling element driven by a leveling driving member of the leveling machine against the tubular body, where a straightness of 10 the tubular body is measured by a straightness measurement member of the leveling machine; (d) placing the tubular body after leveling by the leveling machine on a honing machine; (e) configuring at least an abrasive element on a rotational member of the honing 15 machine; (f) spinning the abrasive element by the rotational member rotated by a honing driving member of the honing machine; (g) threading the abrasive element into the channel through the openings; (h) moving the abrasive element reciprocally inside the channel; and 20 (i) forming an inner layer around the channel inside the tubular body by the abrasive element’s reciprocal movement.
2. The method according to claim 1, further comprising a step (f1) after the step (f) of: providing a first reciprocal member connected to the rotational member that engages the rotational member into a reciprocal movement. 25
3. The method according to claim 1, further comprising a step (f1) after the step (f) of: providing a second reciprocal member to a side of the rotational member that engages the tubular body into a reciprocal movement.
4. The method according to claim 1, further comprising a step (h1) after the step (h) of: replacing the abrasive element with a second abrasive element of a finer grit 5 size and conducting a second round of honing.
5. The method according to claim 1, wherein a bottom side of the leveling element has a trough; inside and along the trough, there is a protrusion and a plurality of recesses next to the two ends of protrusion, respectively; and a cushion element is beneath each support element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ761337A NZ761337B2 (en) | 2020-02-03 | Environmentally Friendly Straw and Manufacturing Method Thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ761337A NZ761337B2 (en) | 2020-02-03 | Environmentally Friendly Straw and Manufacturing Method Thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ761337A true NZ761337A (en) | 2021-06-25 |
NZ761337B2 NZ761337B2 (en) | 2021-09-28 |
Family
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed | ||
RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 03 FEB 2025 BY ALFRED LEI Effective date: 20240131 |