EP0029464A1 - Appareil d'amenée pour presses de transformation pour fils ou barres - Google Patents

Appareil d'amenée pour presses de transformation pour fils ou barres Download PDF

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Publication number
EP0029464A1
EP0029464A1 EP79104704A EP79104704A EP0029464A1 EP 0029464 A1 EP0029464 A1 EP 0029464A1 EP 79104704 A EP79104704 A EP 79104704A EP 79104704 A EP79104704 A EP 79104704A EP 0029464 A1 EP0029464 A1 EP 0029464A1
Authority
EP
European Patent Office
Prior art keywords
crank
feed apparatus
adjusting
wire feed
intermediate lever
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
EP79104704A
Other languages
German (de)
English (en)
Other versions
EP0029464B1 (fr
Inventor
Walter Ing.-Grad. Flamme
Willi Ing-Grad. Mielke
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.)
L Schuler GmbH
Original Assignee
L Schuler 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
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Priority to AT79104704T priority Critical patent/ATE6213T1/de
Priority to DE7979104704T priority patent/DE2966684D1/de
Priority to EP79104704A priority patent/EP0029464B1/fr
Publication of EP0029464A1 publication Critical patent/EP0029464A1/fr
Application granted granted Critical
Publication of EP0029464B1 publication Critical patent/EP0029464B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips

Definitions

  • the invention relates to a wire feed apparatus for in particular forming presses with at least one pair of opposing feed rollers, between the profile grooves of which the wire or a rod is drawn periodically into the forming press by a certain drawing length and at least one of which has a drive shaft via a crank drive for generating a corresponding periodic Angular movement is connected, which has at least one drive rod articulated directly on cranks on the drive shaft and the feed roller or at least on one side on an intermediate lever, at least one of the two articulation points being provided with an adjusting device for changing the distance to the respective pivot or rotational axis.
  • the known collection devices usually have one or two pairs of rollers to feed, e i n wire or rod can be retracted in the forming die between the profile grooves.
  • the respective Feed length of the front part of the wire or rod cut off and formed into a pressed part.
  • the wire or rod is pulled in. at periodic intervals.
  • the feed rollers are rotated synchronously by an angle corresponding to the feed stroke.
  • the feed rollers are interconnected by gears, so that it is sufficient if one of the feed rollers is driven.
  • This drive takes place via a drive shaft and an adjoining crank drive, which converts the rotary movement of the drive shaft into a to-and-fro movement.
  • a crank is attached to the drive shaft, to which a drive rod is articulated at one end, while the other end is seated on a further crank on the feed roller.
  • the gear ratios are chosen so that the crank of the feed roller is only pivoted back and forth by a certain angle. So that the feed roller only makes a corresponding movement in the feed direction, a freewheel is arranged between it and the crank, which separates the power transmission when the crank moves against the feed direction.
  • an intermediate lever is arranged between the two cranks, which is connected to the cranks via a respective drive rod.
  • the draw-in length i.e. the amount by which the wire or rod is drawn into the forming press during a pull-in movement, is usually adjustable.
  • the adjustment is done by changing the eccentricity of one of the two cranks, or - if there is an intermediate lever - des Distance between its pivot axis and the pivot point of the drive rod. In this way, the swiveling deflection of the crank on the feed roller changes and thus its angle of rotation.
  • the articulation point of the drive rod is fastened to a sliding block, which can be moved radially on the crank or the intermediate lever via a spindle.
  • the spindle is operated by hand after loosening a locking device. This requires the entire machine to come to a standstill, which is extremely cumbersome and time-consuming.
  • the invention is therefore based on the object of designing the adjusting device of a feed apparatus of the type mentioned at the outset in such a way that rapid adjustment of the feed length is possible without the machine coming to a standstill.
  • the adjusting device has an adjusting motor which is arranged on the crank or the intermediate lever.
  • the distance of the articulation point from the respective swivel or rotational axis can be changed in a simple manner by controlling this adjustment motor. It is particularly advantageous that the adjustment motor is arranged on the crank or the intermediate lever, since then the retractor for the adjustment process and the entire machine no longer need to be shut down.
  • the adjusting motor is designed as a stepping motor, it being expedient to use the adjusting motor with to provide an incremental encoder for digital remote display of the respective position of the articulation point. In this way, the adjustment can be carried out from a control panel without eye inspection.
  • the adjusting motor be rotated or rotated. Pivot axis of the crank or the intermediate lever is arranged. As a result, the mass and centrifugal forces are kept low and the electrical connection is easy because of the small rotational movements.
  • the arrangement can be such that the adjusting motor is connected via a worm gear to a radially extending adjusting spindle for the radial displacement of a sliding block bearing the articulation point.
  • the invention further provides that the adjustment device has a locking device in order to block it after the adjustment process.
  • These detecting means may arranged in the sliding block, hydraulic betätig- consist ba rem clamping piston which clamps the sliding block in its guide according to the invention from a.
  • the adjusting device is arranged on an intermediate lever which is connected on the one hand via the drive rod to the crank of the feed roller and on the other hand via a connecting rod to the crank of the drive shaft.
  • Figure 1 shows a schematic side view of the most important parts of a feed device 1. This consists of two pairs of feed rollers 2, 3, each with two superimposed feed rollers 4, 5 and 6, 7. Between these pairs of feed rollers 2, 3, a wire or a rod pulled in the direction of arrow A.
  • the feed rollers 4, 6 and 5, 7, which are located one behind the other, are connected via a gear set, not shown here, and the two front feed rollers 4, 5 are connected via the gear 8. With this gear connection, it is sufficient if only one feed roller is driven, namely the feed roller 4 in the case shown.
  • a crank 9 is seated on the axis of this feed roller 4, a free-wheel being arranged between the two. This freewheel locks only in the feed direction (part B), whereas there is no power transmission against this direction.
  • the crank 9 is moved back and forth, the feed rollers 4, 5, 6, 7 are therefore only rotated in one direction, namely the feed direction.
  • crank mechanism 10 which is connected to a drive shaft 11.
  • the crank mechanism 10 has an intermediate lever 12 designed as a double lever, to the one lever arm 13 of which a connecting rod 14 is articulated, which is mounted eccentrically in the manner of a crank on the drive shaft 11. A rotary movement of the drive shaft 11 thus produces a back and forth movement of the intermediate lever 12.
  • the lever arm 15 of the intermediate lever 12 has an adjusting device with which the distance of the articulation point 17 from the pivot axis 18 can be changed.
  • the articulation point 17 is namely on a sliding block 19 which is guided in the longitudinal direction of the lever arm 15 and thus in an approximately radial direction.
  • the displacement takes place via a spindle 20 penetrating the sliding block 19, the lower end of which is connected via a worm gear 21 to the rotary shaft 22 of a stepping motor running coaxially to the pivot axis 18.
  • the spindle 20 can be rotated so that the sliding block 19 moves. The more he moves radially outwards, the greater the pivot angle on the crank 9 and thus the length of the draw-in.
  • the sliding block After setting the draw-in length, the sliding block can be fixed using a locking device 23.
  • This locking device 23 consists of a small hydraulic piston 24 which is pressed against the guide wall 25 of the sliding block 19 when pressure is applied and blocks it in this way.
  • FIG. 2 shows a cross section through the intermediate lever 12, specifically at the pivot axis 18 perpendicular to the longitudinal axis of the spindle 20.
  • the intermediate lever 12 is mounted in the housing 26 of the feed apparatus 1 via two bearings 27, 28.
  • the stepper motor 29 is fastened to the intermediate lever 12 in such a way that its rotary shaft 22 lies coaxially with the pivot axis 18. In this way, it moves with the intermediate lever 12, so that the rotary movement of the stepping motor 29 is also transmitted to the spindle 20 via the worm gear 21 during operation. An adjustment of the draw-in length is thus possible without simply stopping the draw-in apparatus by simply actuating the stepping motor 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Transmission Devices (AREA)
EP79104704A 1979-11-27 1979-11-27 Appareil d'amenée pour presses de transformation pour fils ou barres Expired EP0029464B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT79104704T ATE6213T1 (de) 1979-11-27 1979-11-27 Einzugapparat an umformpressen fuer langgestrecktes material in stangen- oder drehform.
DE7979104704T DE2966684D1 (en) 1979-11-27 1979-11-27 Feeding device, for transformation presses for elongate material such as bars or wires
EP79104704A EP0029464B1 (fr) 1979-11-27 1979-11-27 Appareil d'amenée pour presses de transformation pour fils ou barres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79104704A EP0029464B1 (fr) 1979-11-27 1979-11-27 Appareil d'amenée pour presses de transformation pour fils ou barres

Publications (2)

Publication Number Publication Date
EP0029464A1 true EP0029464A1 (fr) 1981-06-03
EP0029464B1 EP0029464B1 (fr) 1984-02-15

Family

ID=8186241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104704A Expired EP0029464B1 (fr) 1979-11-27 1979-11-27 Appareil d'amenée pour presses de transformation pour fils ou barres

Country Status (3)

Country Link
EP (1) EP0029464B1 (fr)
AT (1) ATE6213T1 (fr)
DE (1) DE2966684D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072476A2 (fr) * 1981-08-14 1983-02-23 Hatebur Umformmaschinen AG Procédé et dispositif d'alimentation de matériau dans des machines de formage à chaud ou à demi-chaud
CN101791657B (zh) * 2009-11-20 2012-01-11 建科机械（天津）股份有限公司 棒材剪切生产线的输送落料机构
CN103464653A (zh) * 2013-09-04 2013-12-25 建科机械（天津）股份有限公司 盾构管片钢筋笼单片网焊接设备中钢筋输送定尺托起装置
CN107186136A (zh) * 2017-07-05 2017-09-22 建科机械（天津）股份有限公司 桁架生产线的步进节距调节装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD39538A (fr) *
US1413970A (en) * 1920-02-03 1922-04-25 Jos Armieri & Co Transmission mechanism
US2821388A (en) * 1956-01-27 1958-01-28 Bliss E W Co Roll feed adjustment
DE1136660B (de) * 1960-02-23 1962-09-20 Pressenwerk Bad Salzungen Veb Vorschubfeineinstellung fuer Walzenvorschubapparate
US3456859A (en) * 1967-05-08 1969-07-22 Production Machinery Corp Device for feeding strip material
DE1602569A1 (de) * 1967-06-15 1970-04-09 Schuler Gmbh L Vorschubapparat fuer Pressen od.dgl.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD39538A (fr) *
US1413970A (en) * 1920-02-03 1922-04-25 Jos Armieri & Co Transmission mechanism
US2821388A (en) * 1956-01-27 1958-01-28 Bliss E W Co Roll feed adjustment
DE1136660B (de) * 1960-02-23 1962-09-20 Pressenwerk Bad Salzungen Veb Vorschubfeineinstellung fuer Walzenvorschubapparate
US3456859A (en) * 1967-05-08 1969-07-22 Production Machinery Corp Device for feeding strip material
DE1602569A1 (de) * 1967-06-15 1970-04-09 Schuler Gmbh L Vorschubapparat fuer Pressen od.dgl.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072476A2 (fr) * 1981-08-14 1983-02-23 Hatebur Umformmaschinen AG Procédé et dispositif d'alimentation de matériau dans des machines de formage à chaud ou à demi-chaud
EP0072476A3 (en) * 1981-08-14 1983-07-20 Hatebur Umformmaschinen Ag Method and device for feeding material to hot or semi-hot forming machines
CN101791657B (zh) * 2009-11-20 2012-01-11 建科机械（天津）股份有限公司 棒材剪切生产线的输送落料机构
CN103464653A (zh) * 2013-09-04 2013-12-25 建科机械（天津）股份有限公司 盾构管片钢筋笼单片网焊接设备中钢筋输送定尺托起装置
CN103464653B (zh) * 2013-09-04 2016-01-20 建科机械（天津）股份有限公司 盾构管片钢筋笼单片网焊接设备中钢筋输送定尺托起装置
CN107186136A (zh) * 2017-07-05 2017-09-22 建科机械（天津）股份有限公司 桁架生产线的步进节距调节装置

Also Published As

Publication number Publication date
ATE6213T1 (de) 1984-03-15
DE2966684D1 (en) 1984-03-22
EP0029464B1 (fr) 1984-02-15

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