EP0730920A1 - Dispositif pour enlever un des rouleaux d'un système d'alimentation à grande dynamique avec mesure d'épaisseur intégré de la tÔle - Google Patents

Dispositif pour enlever un des rouleaux d'un système d'alimentation à grande dynamique avec mesure d'épaisseur intégré de la tÔle Download PDF

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Publication number
EP0730920A1
EP0730920A1 EP96103019A EP96103019A EP0730920A1 EP 0730920 A1 EP0730920 A1 EP 0730920A1 EP 96103019 A EP96103019 A EP 96103019A EP 96103019 A EP96103019 A EP 96103019A EP 0730920 A1 EP0730920 A1 EP 0730920A1
Authority
EP
European Patent Office
Prior art keywords
rocker
roller
marked
eccentric
actuator
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
EP96103019A
Other languages
German (de)
English (en)
Other versions
EP0730920B1 (fr
Inventor
Siegfried Schwarz
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.)
Raiffeisenbank Wangen
Original Assignee
JENTRON ELECTRONIC GmbH
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
Priority claimed from DE19507396A external-priority patent/DE19507396C2/de
Priority claimed from DE1995133697 external-priority patent/DE19533697C2/de
Application filed by JENTRON ELECTRONIC GmbH filed Critical JENTRON ELECTRONIC GmbH
Publication of EP0730920A1 publication Critical patent/EP0730920A1/fr
Application granted granted Critical
Publication of EP0730920B1 publication Critical patent/EP0730920B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance

Definitions

  • the invention relates to a device for intermediate ventilation of the upper roller of a highly dynamic roller feed system for feeding a strip of material in presses, punches or similar machines according to the preamble of claim 1.
  • Such a device is known from DE 38 10 663 C2.
  • This document shows a roll feed system with a mechanism for intermittently driving the rolls in order to advance a material band clamped between the rolls by a certain length.
  • the upper roller of the roller feed system including its drive, is mounted so that it can move in height. This makes it possible to lift the upper roller by means of intermediate ventilation in order to be able to insert the material band.
  • the intermediate ventilation takes place through the actuation of an eccentric, which is arranged at an axial end of the rocker, and via an actuator provided on the upper side of the rocker.
  • a spring also acts on the rocker, which acts on the rocker in the direction of the roller below.
  • the adjustment of the gap width via the actuator takes place exclusively mechanically by turning a nut acting on the actuator, whereby the time required for the intermediate ventilation is increased and the required precision when setting the gap width cannot be guaranteed with certainty.
  • the invention is therefore based on the object, on the one hand, to achieve a delay-free, degree-accurate switching on and off of the roll-releasing process by means of suitable electronically controlled mechanical components and thus to achieve a higher number of presses or punching strokes and higher process reliability; Another subtask is the creation of the possibility of constant monitoring of the sheet thickness tolerance.
  • the basic structure of the new device for lifting the upper roller 7 of a highly dynamic roller feed system 1 for feeding a material strip is shown 1a for presses, punches, etc.
  • the actuator 5d is plate-shaped, rests on the pressure elements 9 in a yoke-like manner and can be moved by an adjustable height dimension b relative to the rocker arm 5 via lateral guide columns 5c
  • the Positioning spindle 7 is connected to the actuator 5d or 5d 'via a ball screw guide 7a
  • the design can alternatively also be chosen so that the actuator 5d 'is also designed as a rocker with the same pivot point 5a, at the swinging end 5b of which the positioning spindle (s) 7, 7a engages, whereby this makes sense there is also an arrangement of two spindles 7, 7c at a mutual horizontal distance a from one another on a common shaft 8, at one end of which the AC motor 8a is seated (FIG. 3).
  • the assignment of at least one limit stop 10 to the top of the free swing end 5b completes the structural design here, as does a circuit-like connection of the AC motor 8a for the roll ventilation with the respective machine control.
  • the new system thus results in an almost instantaneous, precise turning on and off of the roll ventilation at the usual stroke rates, thereby enabling higher stroke rates for the respective press or punch.
  • the motor 8a starts when the intermediate ventilation is ended, likewise without counterforce from the bellows cylinder. Only when the positioning is ended is the force P against the direction of travel effective in the last 0.2 mm. It thus supports the braking of the engine.
  • the roller contact pressure P of the bellows cylinder 9 is used for the first time to support both the rapid opening of the rollers during intermediate ventilation and the rapid closing at the end of the intermediate ventilation. So far, intermediate ventilation has always been carried out against this force P, which is understandably considerable response delays of the entire system as well as high wear of the structural control elements.
  • FIGS. 4 and 5 show an embodiment which is particularly advantageous in practice and which is in turn alternative to FIGS. 1 to 3.
  • the new device can also be used to continuously determine the thickness of the metal strip 1a passing through; this is a very important criterion for avoiding operational disruptions such as tool breakage, etc. when processing metal on presses and punches.
  • This is solved by a sensor 11 on the free end piece 5b of the rocker 5 and a measuring vane 12 fixedly opposite the sensor 11 at the front on the rocker 5, as a monitoring element for maintaining the factory-guaranteed upper tolerance range of the sheet metal material supplied, of course in the circuit-like connection of the sensor 11 to the machine control for the purpose of stopping the machine or feed when the permissible strip thickness is exceeded.
  • the measuring device shown here does not require any mechanical, i.e. manual setting. It is programmed in the machine control with the basic data of the feed, i.e. the feed length, speed, acceleration, strip thickness, intermediate ventilation and also the strip thickness tolerance of e.g. +/- 0.05mm. All data is saved under the part number of the respective tool.
  • the mechanics of the measuring device is the feed with the elements of the intermediate ventilation itself. Only a distance sensor is used in e.g. optical or inductive or capacitive analog type required. There is therefore no need for any additional mechanics which generally require a relatively large amount of space.
  • the basis of the measuring method is therefore that the movable rocker 5 with the top roller (bottom roller of the feed is fixed) is raised accordingly at + tolerance and at -Tolerance due to possibly different material thickness of the belt is discontinued. Since the upper swing part 5b and 5d is positioned at the programmed value, there is a relative change in distance between the rocker 5 and the upper swing part 5b and 5d.
  • a programming example can look like this: a) Strip thickness (fixed stop) 3.8 mm b) intermediate ventilation 0.5 mm c) Strip thickness tolerance +/- 0.05 mm
  • the limit values d1 and d2 can be saved for the part number.
  • the controlled punching operation can begin immediately after calling up the relevant part numbers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
EP96103019A 1995-03-03 1996-02-29 Dispositif pour enlever un des rouleaux d'un système d'alimentation à grande dynamique avec mesure d'épaisseur intégré de la tôle Expired - Lifetime EP0730920B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19507396 1995-03-03
DE19507396A DE19507396C2 (de) 1994-08-09 1995-03-03 Vorrichtung zum Zwischenlüften einer der Walzen an dynamischen Vorschubsystemen
DE29509112 1995-06-02
DE29509112U 1995-06-02
DE1995133697 DE19533697C2 (de) 1995-03-03 1995-09-12 Vorrichtung zur kontinuierlichen Ermittlung der Dicke von Materialbändern bei Walzenvorschubsystemen
DE19533697 1995-09-12

Publications (2)

Publication Number Publication Date
EP0730920A1 true EP0730920A1 (fr) 1996-09-11
EP0730920B1 EP0730920B1 (fr) 2001-11-21

Family

ID=27214893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103019A Expired - Lifetime EP0730920B1 (fr) 1995-03-03 1996-02-29 Dispositif pour enlever un des rouleaux d'un système d'alimentation à grande dynamique avec mesure d'épaisseur intégré de la tôle

Country Status (2)

Country Link
EP (1) EP0730920B1 (fr)
AT (1) ATE209074T1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1086916A2 (fr) * 1999-08-25 2001-03-28 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
EP1716939A1 (fr) * 2005-12-08 2006-11-02 Elite Machine and Design Ltd. Dispositif d'alimentation de tôles pour une machine à poinçonner
WO2012120294A1 (fr) * 2011-03-07 2012-09-13 Siemens Vai Metals Technologies Ltd. Dispositif à cisaille rotative et procédé associé
CN117228395A (zh) * 2023-11-14 2023-12-15 常州金纬片板膜科技有限公司 一种片材储料架
CN117367239A (zh) * 2023-12-08 2024-01-09 山东龙拓新材料有限公司 一种塑料制品厚度检测装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4993997B2 (ja) * 2006-10-30 2012-08-08 アイダエンジニアリング株式会社 レリース機構及び該レリース機構を備えた矯正処理装置
CN107055168A (zh) * 2017-05-04 2017-08-18 苏州晨钟自动化科技有限公司 一种布料压辊机构
CN111589986A (zh) * 2020-06-03 2020-08-28 南京龙浩新材料科技有限公司 一种多弧面钢筋自动弯弧机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156670A1 (fr) * 1971-10-01 1973-06-01 Bruderer Ag
DE2507701A1 (de) * 1975-02-22 1976-09-02 Schuler Gmbh L Einrichtung zum schrittweisen vorschieben von streifen- oder bandfoermigem material
DE3810663A1 (de) * 1987-12-25 1989-07-13 Sankyo Mfg Walzenzufuehrungseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156670A1 (fr) * 1971-10-01 1973-06-01 Bruderer Ag
DE2507701A1 (de) * 1975-02-22 1976-09-02 Schuler Gmbh L Einrichtung zum schrittweisen vorschieben von streifen- oder bandfoermigem material
DE3810663A1 (de) * 1987-12-25 1989-07-13 Sankyo Mfg Walzenzufuehrungseinrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1086916A2 (fr) * 1999-08-25 2001-03-28 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
EP1086916A3 (fr) * 1999-08-25 2002-04-17 Heidelberger Druckmaschinen Aktiengesellschaft Unité de palier pour rouleaux tendeurs de bandes de matériau
EP1716939A1 (fr) * 2005-12-08 2006-11-02 Elite Machine and Design Ltd. Dispositif d'alimentation de tôles pour une machine à poinçonner
WO2012120294A1 (fr) * 2011-03-07 2012-09-13 Siemens Vai Metals Technologies Ltd. Dispositif à cisaille rotative et procédé associé
CN117228395A (zh) * 2023-11-14 2023-12-15 常州金纬片板膜科技有限公司 一种片材储料架
CN117228395B (zh) * 2023-11-14 2024-01-19 常州金纬片板膜科技有限公司 一种片材储料架
CN117367239A (zh) * 2023-12-08 2024-01-09 山东龙拓新材料有限公司 一种塑料制品厚度检测装置
CN117367239B (zh) * 2023-12-08 2024-05-24 山东龙拓新材料有限公司 一种塑料制品厚度检测装置

Also Published As

Publication number Publication date
EP0730920B1 (fr) 2001-11-21
ATE209074T1 (de) 2001-12-15

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