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WO1982000612A1 - Dispositif de pliage de tiges de joncs - Google Patents

Dispositif de pliage de tiges de joncs Download PDF

Info

Publication number
WO1982000612A1
WO1982000612A1 PCT/NO1981/000035 NO8100035W WO8200612A1 WO 1982000612 A1 WO1982000612 A1 WO 1982000612A1 NO 8100035 W NO8100035 W NO 8100035W WO 8200612 A1 WO8200612 A1 WO 8200612A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending
blank
sheaves
rotary actuators
abutment means
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.)
Ceased
Application number
PCT/NO1981/000035
Other languages
English (en)
Inventor
H Slettvoll
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
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 Individual filed Critical Individual
Priority to DE813152268A priority Critical patent/DE3152268A1/de
Priority to NL8120308A priority patent/NL8120308A/nl
Publication of WO1982000612A1 publication Critical patent/WO1982000612A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J1/00—Mechanical working of cane or the like
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies

Definitions

  • the invention relates to an apparatus for bending rattan stems or blanks of other material which when subjected to heat, chemical or mechanical processes become soft and pliable, but which regain their original hardness and strengt by drying or another reaction, the apparatus consisting of a table or the like which is provided with guide sheaves and a bending template which presses the blank against abutment means with the aid of a pressure cylinder or the like.
  • the object of the invention is to enable the bending of rattan stems (or other material) in all planes in one operation, and to permit the removal of the shaped rattan rods from the bending apparatus immediately so that efficient production is obtained.
  • each guide sheave is arranged in conjunction with a rotary actuator and a bending sheave, the axis of the guide sheaves lying on an extension of the shaft of the rotary actuator, and each rotary actuator is adapted to press the bending sheaves toward the blank for the purpose of bending the blank into engagement with abutment means.
  • a jig is fitted down over the blank to fix it in the bent shape so that it can be removed from the bending apparatus immediately for drying, thereby enabling efficient production.
  • the bending apparatus is also simple to adjust for blanks of various shapes.
  • the bending apparatus which consists of a table with rotary actuators, templates, guide sheaves and bending sheaves, has hydraulic rotary actuators, but the motors could also be pneumatic or mechanical.
  • Figure 1 shows a sketch of the apparatus
  • Figure 2 shows a detail of the apparatus, where a contour template is shown attached to the arm of the rotary actuator,
  • Figure 3 shows a jig attached to the blank
  • Figures 4 a,b show different positions for the arm of the rotary actuator
  • Figure 4c illustrates the use of a hydraulic cylinde instead of a rotary actuator.
  • 2 1 -2 2 -3 1 -3 2 bending sheaves attached to respective arms of respective rotary actuators.
  • the sheaves may be adjusted radially with respect to the axis of the rotary actuator, and run freely on a shaft journal. These sheaves may also be replaced by sheaves of different diameters. If a special configuration is desired, these sheaves may also be replaced by a contour template A, see Figure 2, which is attached to the arm of the rotary actuator.
  • abutment means fastened to the mounting table, which provides the correct surface of abutment for the rattan stem when bent
  • the blanks are first cut to the correct length, placed in an autoclave and steamed so that they become soft and pliable. Thereafter, they are placed in the bending apparatus where by means of hydraulic bending sheaves, guide sheaves, contour template and jigs they are bent into the correct shape, removed and placed on shelves for drying.
  • the stem is "straight" when it is inserted into the bending apparatus, and it is placed in between the guide sheaves 1 1 , 1 2 and a bending die 4 with its end abutting an end rest 7 ( Figure 1).
  • the cylinder S is actuated, and the bending template 4 presses the blank against abutment means 8 while at the same time the blank is pressed against the guide sheaves 1 1 and 1 2 .
  • the rotary actuator M 1 is "coupled in and the bending sheave 2 1 on the arm of the rotary actuator bends the blank around the guide sheave 1 1 into engagement with abutment means 8.
  • Hydraulic pressure holds the bending sheave 2 1 in position
  • the rotary actuator M 2 is coupled in and the bending sheave 2 2 forces the blank to bend around the guide sheave 1 2 and into engagement with abutment means 8.
  • the rotary actuators M 3 and M 4 are coupled in and force the blank over the guide sheaves 1 3 and 1 4 into engagement with abutment means 8.
  • the blank has now been bent into the correct shape, but it cannot be removed from the bending apparatus until it has been fixed in the shape it has assumed in the bending apparatus, since it is still soft and pliable.
  • the jig ( Figure 3) is used for this purpose; the jig is fitted down over the blank and locks it in the configuration it has been given in the bending apparatus so that the blank and the jig can then be removed from the bending apparatus and placed on shelves for drying.
  • Grooves B ( Figures 2 and 3) are milled in abutment means 8 and contour template A to permit the jig to be fitted down over the blank while it remains clamped in the apparatus.
  • the cylinder S is adjustable in the lateral, longitudinal and vertical directions and can be angled according to which contour template 4 is being utilized.
  • the hydraulic actuators M 1 and M 2 are adjustable in height and in the lateral and radial directions. If they are set at an angle in relation to the plane, for example, guide sheaves 1 1 and 1 2 with oblique grooves ( Figures 4a, 4b) can be used.
  • Mounted on the arms of the respective rotary actuators are bending sheaves 2 1 and 2 2 , which are adjustable radially with respect to the axes of the respective rotary actuators, and the arms for the bending sheaves can be articulated (Figure 4b) to obtain the desired contour on the blank.
  • the bending sheaves may be replaced by contour template (cf.
  • the rotary actuators can be driven in both directions of rotation and are rotatable 360o.
  • the rotary actuators are controlled by means of a hydraulic control valve which regulates the amount of fluid, and an adjustable pressure valve which controls the force and speed of the movement.
  • the rotary actuators M 3 and M 4 are adjustable in all planes and have the same capabilities and functions as M 1 and M 2 .
  • the end rest 7 is adjustable in the longitudinal direction to permit correct insertion of the blank which is to be bent.
  • the apparatus is mounted on a table where the cylinder S and the rotary actuators M 1 and M 2 are mounted at a level above the table plate to permit bending in all planes.
  • the rotary actuators M 3 and M 4 are mounted on the table plate, and are adjustable over the entire table.
  • abutment means 8 are mounted on the table.
  • a hydraulic cylinder 11 ( Figure 4c) may be used instead of a hydraulic actuator.
  • the cylinder is mounted on the table. It can be tilted about the point of attachment and is pivotable so that the blank will not impinge incorrectly against the "angle" which bends the blank.
  • the bending sheave which is attached to the arm of the rotary actuator can be replaced by a contour template, A on Figure 2, or by a die in addition to the bending sheave 2.
  • abutment means 8 which is bolted to the table 5, and in the contour template A and the bending template 4, grooves B have been milled for abutment means 10 (cf. Figure 2).
  • the jig 10 is made of a rigid material and provided with "ears" and offsets, and it is fitted down over the blank when the blank still lies clamped in the bending apparatus. When the bending apparatus is subsequently driven back into its starting position, the blank will be released but will be locked in the same position as when it was clamped in the apparatus ( Figure 3) .
  • the blank is then removed from the bending apparatus with the jig 10 attached and may be placed on shelves for drying. When the blank is dry it will retain its shape, and the jig can be removed and is ready to be used again. Production can thus run continuously assuming one has a sufficient number of jigs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Wire Processing (AREA)
  • Jib Cranes (AREA)
  • Insulated Conductors (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

Dispositif de pliage pour tiges de joncs comprenant une table de montage (5) avec un cylindre (S), des poulies a gorges de guidage (11-14) montees sur une rallonge des arbres des dispositifs d'actionnement rotatifs respectifs (M1-M4) et des poulies a gorges de pliage (21-22 et 31-32) montees sur les bras des dispositifs d'actionnement rotatifs respectifs (M1-M4) qui sont reglables radialement par rapport aux axes respectifs des dispositifs d'actionnement rotatifs (M1-M4) et qui peuvent etre remplaces par des poulies a gorge possedant des contours et des diametres differents, ou par des gabarits de contour lorsqu'il faut donner une configuration speciale a l'ebauche (9). Les dispositifs d'actionnement rotatifs hydrauliques (M1-M4) peuvent etre entraines dans les deux directions de rotation, sont reglables dans tous les plans, et peuvent tourner de 160 . Sur la table (5) sont montes des moyens de butee (8) faisant office de surface de butee correcte pour les tiges de joncs pliees par le dispositif. Sur une rallonge de la table (5) est monte un dispositif d'appui d'extremite (7) assurant le positionnement correct de l'ebauche (9) dans le dispositif. Le dispositif de fixation (6) pour les dispositifs d'actionnement rotatifs hydrauliques (M1-M4), montes sur la table (5) permet le reglage de ceux-ci dans tous les plans. Le dispositif de pliage comprend aussi un gabarit compose d'un materiau rigide et possedant des "oreilles", des consoles et des rebords, de maniere a pouvoir etre ajuste sur l'ebauche tandis que celle-ci est serree dans le dispositif de pliage pour bloquer l'ebauche dans la forme definie par le dispositif.
PCT/NO1981/000035 1980-08-26 1981-08-26 Dispositif de pliage de tiges de joncs Ceased WO1982000612A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE813152268A DE3152268A1 (en) 1980-08-26 1981-08-26 Apparatus for bending rattan stems
NL8120308A NL8120308A (fr) 1980-08-26 1981-08-26

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO802525800826 1980-08-26
NO802525A NO146420C (no) 1980-08-26 1980-08-26 Boeyeapparat for manillastenger i alle plan

Publications (1)

Publication Number Publication Date
WO1982000612A1 true WO1982000612A1 (fr) 1982-03-04

Family

ID=19885629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1981/000035 Ceased WO1982000612A1 (fr) 1980-08-26 1981-08-26 Dispositif de pliage de tiges de joncs

Country Status (5)

Country Link
DE (1) DE3152268A1 (fr)
GB (1) GB2092062B (fr)
NL (1) NL8120308A (fr)
NO (1) NO146420C (fr)
WO (1) WO1982000612A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626299A (zh) * 2013-11-11 2015-05-20 孙建光 藤弯曲成形方法及专用模具
CN107042567A (zh) * 2017-05-27 2017-08-15 正安县欧尚电器有限公司 吉他形路灯侧板生产用加工设备
CN107186837A (zh) * 2017-07-05 2017-09-22 广东工业大学 一种辅助大幅度热弯竹子的装置
CN112339047A (zh) * 2020-11-23 2021-02-09 湖州鑫灿家具有限公司 藤编家具加工用藤条折弯装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120464B1 (fr) * 1983-03-22 1986-07-09 Emmerich Gerstweiler Dispositif pour cintrer des tubes
CA1335784C (fr) * 1988-05-13 1995-06-06 Sadao Kimura Machine a couder des conduits metalliques de petit diametre
DE19654907C2 (de) * 1996-02-02 1999-03-18 Schuetz Kurt Flechtatelier Verfahren und Vorrichtung zur Herstellung eines Flechtwerks mit streifenförmigem, vorgeformten Flechtmaterial
CN111376359A (zh) * 2020-04-07 2020-07-07 龙泉市亿龙竹木开发有限公司 一种防腐防霉竹板生产工艺及其加工设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US639221A (en) * 1899-06-22 1899-12-19 Lyon & Healy Bending-machine.
US1016721A (en) * 1910-05-07 1912-02-06 Sanford E Walke Wood-bending device.
DE879298C (de) * 1951-12-15 1953-06-11 Hugo Jaeggy Verfahren und Vorrichtung zum Biegen von Bambusrohr
CH536145A (fr) * 1970-05-29 1973-04-30 Pompeo Mingori Rene Appareil à cintrer les tubes en forme de chapeau de gendarme
US3742749A (en) * 1971-02-03 1973-07-03 J Markin Tube-coiling machine
US4052875A (en) * 1975-08-30 1977-10-11 Kabushiki Kaisha Ogura Chuck Seisakusho Small size, portable bender
US4090387A (en) * 1975-11-28 1978-05-23 S.A. Ermeto Bending-tool and a device fitted out with such a tool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US639221A (en) * 1899-06-22 1899-12-19 Lyon & Healy Bending-machine.
US1016721A (en) * 1910-05-07 1912-02-06 Sanford E Walke Wood-bending device.
DE879298C (de) * 1951-12-15 1953-06-11 Hugo Jaeggy Verfahren und Vorrichtung zum Biegen von Bambusrohr
CH536145A (fr) * 1970-05-29 1973-04-30 Pompeo Mingori Rene Appareil à cintrer les tubes en forme de chapeau de gendarme
US3742749A (en) * 1971-02-03 1973-07-03 J Markin Tube-coiling machine
US4052875A (en) * 1975-08-30 1977-10-11 Kabushiki Kaisha Ogura Chuck Seisakusho Small size, portable bender
US4090387A (en) * 1975-11-28 1978-05-23 S.A. Ermeto Bending-tool and a device fitted out with such a tool

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Derwent's abstract No. E9192C/22 SU 691 227 *
Derwent's abstract No. K3821C/43, SU 721 162 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626299A (zh) * 2013-11-11 2015-05-20 孙建光 藤弯曲成形方法及专用模具
CN107042567A (zh) * 2017-05-27 2017-08-15 正安县欧尚电器有限公司 吉他形路灯侧板生产用加工设备
CN107186837A (zh) * 2017-07-05 2017-09-22 广东工业大学 一种辅助大幅度热弯竹子的装置
CN112339047A (zh) * 2020-11-23 2021-02-09 湖州鑫灿家具有限公司 藤编家具加工用藤条折弯装置
CN112339047B (zh) * 2020-11-23 2022-05-13 湖州菱创科技有限公司 藤编家具加工用藤条折弯装置

Also Published As

Publication number Publication date
NO802525L (no) 1982-03-01
NO146420B (no) 1982-06-21
DE3152268A1 (en) 1982-10-07
GB2092062B (en) 1985-05-01
GB2092062A (en) 1982-08-11
NO146420C (no) 1983-10-05
NL8120308A (fr) 1982-07-01

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