EP1424214A1 - Méthode et dispositif pour le lissage et la compression de la surface des crayons ou analogue - Google Patents

Méthode et dispositif pour le lissage et la compression de la surface des crayons ou analogue Download PDF

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Publication number
EP1424214A1
EP1424214A1 EP03018894A EP03018894A EP1424214A1 EP 1424214 A1 EP1424214 A1 EP 1424214A1 EP 03018894 A EP03018894 A EP 03018894A EP 03018894 A EP03018894 A EP 03018894A EP 1424214 A1 EP1424214 A1 EP 1424214A1
Authority
EP
European Patent Office
Prior art keywords
sonotrode
pencils
bushings
smoothing
ultrasound
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
EP03018894A
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German (de)
English (en)
Other versions
EP1424214B1 (fr
Inventor
Christoph Raatz
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.)
IHD Institut fuer Holztechnologie Dresden gGmbH
Original Assignee
IHD Institut fuer Holztechnologie Dresden gGmbH
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 IHD Institut fuer Holztechnologie Dresden gGmbH filed Critical IHD Institut fuer Holztechnologie Dresden gGmbH
Publication of EP1424214A1 publication Critical patent/EP1424214A1/fr
Application granted granted Critical
Publication of EP1424214B1 publication Critical patent/EP1424214B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B19/24—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of wood, e.g. furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils

Definitions

  • the invention relates to the fine machining of surfaces made of wood and wood-based materials, namely rod-shaped elements and especially pencils.
  • Wood types such as redwood, jelutong or are used to manufacture wooden pencils Cedar species (Incense cedar, Western red cedar) use, characterized by good Characterize chip properties and therefore the shape Machining by milling a sufficiently clean and well prepared for painting have a fiber-free and tear-free surface.
  • the object of the invention is to eliminate the disadvantages of the prior art.
  • there is a development for smoothing and compacting the Surface of pencils are proposed, which makes it sustainable stronger smoothing effect and from this a reduction in expenses for to achieve the final treatment of the pens (painting) with high productivity.
  • an interface friction affects the surface of the workpieces on all sides.
  • the interfacial friction is generated in that the workpieces abut each other be promoted by a sonotrode. It is transported through the sonotrode after machining the pencil blanks and before coating with paint and / or foils.
  • constant frequencies in the range from 1 6 to 30 kHz and constant powers of at least 500 W are used, the power input being 0.1 to 0.5 Ws / mm 2 .
  • the speed at which the pencils are pushed abruptly through the sonotrode is also constant; the value for this ranges from 20 to 200 mm / s.
  • the shape of the cross section of the bushings corresponds to the cross section of the pencils with a small tolerance, namely ⁇ 0.01 mm 2 .
  • the sonotrode preferably has a multiplicity of bushings which are arranged along and parallel to the direction of vibration of the ultrasound. To ensure a lasting smoothing effect, their number is limited to 20.
  • Both the sonotrode and the bushings preferably have a circular cross section, the outer diameter of the sonotrode (depending on the number of bushings) being between 40 and 120 mm and the lengths of the bushings (corresponding to the thickness of the sonotrode) between 40 and 300 mm.
  • 1 shows a schematic representation of the device according to the invention.
  • the device consists of the sonotrode 2 with the bushings 5, the transport unit 3 including the plunger 4th as well as the ultrasonic generator 1.
  • a roller bearing serves as the feed device Carriage that is moved by a pneumatic cylinder.
  • the cut to length Pencil blanks are positioned on a prism and by a driver on the carriage for passage (bore) 5 in the sonotrode 2 moved.
  • the sonotrode arises as a result of Interfacial friction of the smoothing effect, so that on the opposite side of the sonotrode emerging pins are smoothed.
  • the first round bar element is pushed into the hole by the driver introduced that it is approximately flush with the side facing the sled the sonotrode closes.
  • the full piercing of the first pin will reached with the following pen.
  • the cycle time depends on the positioning the round rod elements in the prism and is usually 5 s, with about 1 s as the time for piercing is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Adornments (AREA)
EP03018894A 2002-11-29 2003-08-20 Méthode et dispositif pour le lissage et la compression de la surface des crayons ou analogue Expired - Lifetime EP1424214B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10256125A DE10256125B4 (de) 2002-11-29 2002-11-29 Verfahren und Vorrichtung zum Glätten und Verdichten der Oberfläche von Bleistiften oder dergleichen
DE10256125 2002-11-29

Publications (2)

Publication Number Publication Date
EP1424214A1 true EP1424214A1 (fr) 2004-06-02
EP1424214B1 EP1424214B1 (fr) 2005-12-21

Family

ID=32240553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018894A Expired - Lifetime EP1424214B1 (fr) 2002-11-29 2003-08-20 Méthode et dispositif pour le lissage et la compression de la surface des crayons ou analogue

Country Status (3)

Country Link
EP (1) EP1424214B1 (fr)
AT (1) ATE313442T1 (fr)
DE (2) DE10256125B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103978810A (zh) * 2014-05-30 2014-08-13 常熟市祖博机械有限公司 一种用于制笔设备的三工位连接输送滑轨
CN104002587A (zh) * 2014-05-30 2014-08-27 常熟市祖博机械有限公司 一种三工位自动组装制笔设备
CN110216759A (zh) * 2019-07-15 2019-09-10 苏州唐德机械有限公司 一种双工位烫笔机
CN110271324A (zh) * 2019-07-12 2019-09-24 周奕萌 粉笔套
CN111546177A (zh) * 2020-06-15 2020-08-18 河南职业技术学院 粉笔端部磨削装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102729305A (zh) * 2012-07-22 2012-10-17 刘增武 一种处理木杆铅笔表面的装置
DE102021128464A1 (de) 2021-11-02 2023-05-04 Faber-Castell Aktiengesellschaft Schleifvorrichtung zum Schleifen beider Stirnseiten eines Stiftes und Verfahren zum Schleifen beider Stirnseiten eines Stiftes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD292412A5 (de) 1990-03-08 1991-08-01 Veb Wtz Der Holzverarbeitenden Industrie,De Verfahren zum bearbeiten mit verzierungen versehener moebelbauteile
DE19653317A1 (de) 1996-12-20 1998-06-25 Ima Montagetechnik Gmbh Verfahren und Vorrichtung zum Verdichten und Glätten von Oberflächen an Werkstücken aus Holz oder dergleichen
DE29808146U1 (de) 1998-05-06 1998-08-27 ihd Institut für Holztechnologie Dresden gGmbH, 01217 Dresden Vorrichtung zur Feinbearbeitung von Rohlingen für Bleistifte oder ähnlichen stabförmigen Elementen
WO2000015412A1 (fr) * 1998-09-11 2000-03-23 Tetra Laval Holdings & Finance S.A. Dispositif emetteur d'ultrasons
DE19847178A1 (de) 1998-10-14 2000-04-20 Ihd Inst Fuer Holztechnologie Verfahren und Vorrichtung zum Glätten von Oberflächen von Werkstücken aus Holz und Holzwerkstoffen
DE10222993B3 (de) 2002-05-24 2004-01-29 IHD Institut für Holztechnologie Dresden gGmbH Vorrichtung zum Wechseln von beheizbaren Werkzeugen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100324A (en) * 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD292412A5 (de) 1990-03-08 1991-08-01 Veb Wtz Der Holzverarbeitenden Industrie,De Verfahren zum bearbeiten mit verzierungen versehener moebelbauteile
DE19653317A1 (de) 1996-12-20 1998-06-25 Ima Montagetechnik Gmbh Verfahren und Vorrichtung zum Verdichten und Glätten von Oberflächen an Werkstücken aus Holz oder dergleichen
DE29808146U1 (de) 1998-05-06 1998-08-27 ihd Institut für Holztechnologie Dresden gGmbH, 01217 Dresden Vorrichtung zur Feinbearbeitung von Rohlingen für Bleistifte oder ähnlichen stabförmigen Elementen
WO2000015412A1 (fr) * 1998-09-11 2000-03-23 Tetra Laval Holdings & Finance S.A. Dispositif emetteur d'ultrasons
DE19847178A1 (de) 1998-10-14 2000-04-20 Ihd Inst Fuer Holztechnologie Verfahren und Vorrichtung zum Glätten von Oberflächen von Werkstücken aus Holz und Holzwerkstoffen
DE10222993B3 (de) 2002-05-24 2004-01-29 IHD Institut für Holztechnologie Dresden gGmbH Vorrichtung zum Wechseln von beheizbaren Werkzeugen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103978810A (zh) * 2014-05-30 2014-08-13 常熟市祖博机械有限公司 一种用于制笔设备的三工位连接输送滑轨
CN104002587A (zh) * 2014-05-30 2014-08-27 常熟市祖博机械有限公司 一种三工位自动组装制笔设备
CN110271324A (zh) * 2019-07-12 2019-09-24 周奕萌 粉笔套
CN110216759A (zh) * 2019-07-15 2019-09-10 苏州唐德机械有限公司 一种双工位烫笔机
CN111546177A (zh) * 2020-06-15 2020-08-18 河南职业技术学院 粉笔端部磨削装置

Also Published As

Publication number Publication date
EP1424214B1 (fr) 2005-12-21
ATE313442T1 (de) 2006-01-15
DE10256125B4 (de) 2006-06-01
DE50301980D1 (de) 2006-01-26
DE10256125A1 (de) 2004-06-24

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