EP3842162A1 - Umweltfreundlicher strohhalm und herstellungsverfahren dafür - Google Patents

Umweltfreundlicher strohhalm und herstellungsverfahren dafür Download PDF

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Publication number
EP3842162A1
EP3842162A1 EP19219717.6A EP19219717A EP3842162A1 EP 3842162 A1 EP3842162 A1 EP 3842162A1 EP 19219717 A EP19219717 A EP 19219717A EP 3842162 A1 EP3842162 A1 EP 3842162A1
Authority
EP
European Patent Office
Prior art keywords
tubular body
leveling
honing
machine
environmentally friendly
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19219717.6A
Other languages
English (en)
French (fr)
Other versions
EP3842162B1 (de
EP3842162C0 (de
Inventor
Jia-Cheng Yeh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19219717.6A priority Critical patent/EP3842162B1/de
Publication of EP3842162A1 publication Critical patent/EP3842162A1/de
Application granted granted Critical
Publication of EP3842162B1 publication Critical patent/EP3842162B1/de
Publication of EP3842162C0 publication Critical patent/EP3842162C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G2400/00—Details not otherwise provided for in A47G19/00-A47G23/16
    • A47G2400/02—Hygiene

Definitions

  • the present invention is generally related to straws, and more particular to an environmentally friendly straw and its manufacturing method.
  • 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.
  • 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.
  • a smooth inner layer between the channel and the tubular body having a center line average roughness (Ra) below 0.025 ⁇ is achieved so that the straw is convenient to clean and use.
  • 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.
  • the inner layer 13 is formed by a honing machine 2.
  • the honing machine 2 is an upright honing machine 2.
  • 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.
  • the honing driving member 21 is a motor
  • the abrasive element 23 is one of sandpaper, millstone, sand strip, and foam sandpaper.
  • the present embodiment uses sandpaper as example.
  • 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.
  • 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 metallic tube would be leveled before it is out of factory.
  • 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.
  • 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.
  • 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.
  • 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 0.025 ⁇ , conforming to the standard of various countries.
  • Ra center line average roughness
  • the channel 12 is not clogged by larger particles, is difficult to contaminate, and is more convenient to clean.
  • 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.
  • 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.
  • manual or other reciprocal operation is also possible.
  • 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 grit size, and a second round of honing is conducted.
  • 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.
  • 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.
  • FIG. 16 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.
  • FIG. 17 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.
EP19219717.6A 2019-12-26 2019-12-26 Herstellungsverfahren für umweltfreundlichen strohhalm Active EP3842162B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19219717.6A EP3842162B1 (de) 2019-12-26 2019-12-26 Herstellungsverfahren für umweltfreundlichen strohhalm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19219717.6A EP3842162B1 (de) 2019-12-26 2019-12-26 Herstellungsverfahren für umweltfreundlichen strohhalm

Publications (3)

Publication Number Publication Date
EP3842162A1 true EP3842162A1 (de) 2021-06-30
EP3842162B1 EP3842162B1 (de) 2023-08-02
EP3842162C0 EP3842162C0 (de) 2023-08-02

Family

ID=69061157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19219717.6A Active EP3842162B1 (de) 2019-12-26 2019-12-26 Herstellungsverfahren für umweltfreundlichen strohhalm

Country Status (1)

Country Link
EP (1) EP3842162B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719624C (de) * 1940-03-16 1942-04-13 Schloemann Ag Vorrichtung zum Richten von Rundkoerpern
DE2812463A1 (de) * 1978-03-22 1979-09-27 Dunkes Maschinenbau Kg Innenrichtmaschine fuer praezisionsbohrungen, insbesondere in gewehrlaeufen
GB2026730A (en) * 1978-07-26 1980-02-06 Galdabini R Machine for automatically straightening-out elongate workpieces
CN101829708B (zh) * 2010-05-14 2011-08-31 中建七局第二建筑有限公司 手动旋压式钢管调直机
CN209360306U (zh) * 2018-10-19 2019-09-10 叶家澄 环保吸管的结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719624C (de) * 1940-03-16 1942-04-13 Schloemann Ag Vorrichtung zum Richten von Rundkoerpern
DE2812463A1 (de) * 1978-03-22 1979-09-27 Dunkes Maschinenbau Kg Innenrichtmaschine fuer praezisionsbohrungen, insbesondere in gewehrlaeufen
GB2026730A (en) * 1978-07-26 1980-02-06 Galdabini R Machine for automatically straightening-out elongate workpieces
CN101829708B (zh) * 2010-05-14 2011-08-31 中建七局第二建筑有限公司 手动旋压式钢管调直机
CN209360306U (zh) * 2018-10-19 2019-09-10 叶家澄 环保吸管的结构

Also Published As

Publication number Publication date
EP3842162B1 (de) 2023-08-02
EP3842162C0 (de) 2023-08-02

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