DE1950496U - PRESS. - Google Patents

Description

Ρ.ΑΛ37150 * 19-8.66

PATENT LAWYERS

DR. ING. KARL BOEHMERT DIPL-ING. ALBERT BOEHMERT DIPL-ING. GÜNTHER EISENFUHR

28 BREMEN, FELDSTRASSE 24 FERNRUF (0421) 491700

File number: MeUaffiaeldune Postscheckkonto: Hamburg 126083

A * W UCtUtUCLU-U-U ^. Bank account: Bremer Bank, Bremen, account 1449

Name d. Note :-

My reference: J) nr @ 2 28 Bremen, den

ΒΑΤΪ AÜB ÜKI3JED SfGIJlEERIRG CCiUPAHI LIBITED, Barsall Works »Sheffield 9t Xorks & ire (England)

Press

Pressing with great. Flattening, swisoiien <äi © the pressing workpiece becomes "is the libge of the moveable crosshead through which the owl-like egg © g © moments limit ?, where the tie rods can be exposed, which the fe © w © glieh® crossJbsupt with connect to the Kolb @ nstajig © n that actuates the press ©. When the prices are in situ, these feet are rigidly and feet connected to a movable head. If sicli di® moves one side © d $ s bew © glioii © n ΟμβΓΜηρΐββ faster than the other side, so that it is inclined, there is a bending moment on the tie rods

exercised. The greater the distance between the tie rods, the greater the bending moment exerted, so that with a long transverse hammers, the tie rods or the structure connected to them would be damaged if in the movement of one end of the head over the other one greater © Bifferens occurs. Solohe Difference "in the movement, for example dureh failures of control or pumps, hydraulic or tglektriseaes equipment or by Yes © rvorgeruf $ & can be, that the workpiece asysime * triseh to the center line of the press are coming au ·

With the present invention, © ine press with a movable Qaerkau ^ tj that has several tie rods is connected with & §r AatiaebsvorrieJatung » indicated at dea? the 2ugstaBSfB ^ sometimes sn to the one Brew rotatable with the öuerhatipt and at the other end rotatably connected with & © n tetriebsvora? i0htung © n and can be moved in guides with pre-tensioned springs are stored "

According to another feature of the invention, a Press specified, which has a vertically movable elongated cross head and four tie rods,

which connect the Quorhau.pt * with the drive devices »with the tie rods at one end can be swiveled at the corresponding corner of the crosshair rotatable relative to the% i @ rhaupt by a horizontal © Axis perpendicular to the longitudinal direction of the head is narrow, while the other end is about a tale aehee parallel to the longitudinal direction of the is rotatably connected to the drive device © a and on 3 © & © r pull rod I tensioned spring © l @ ment © ß provided aisd, which so arranged are that the tie rods are in tertiary position be held ♦

A solution for cooling in @ r Press® after the invention will now be bssohrieben anhaad etgr attached drawings «

In the drawings is "

1 a © Front view of a deep-drawing bending press from the side »from the that

to. pressing material is introduced into the press *

2 © a side view of the press in high regard of the arrow A in Fig. Ij

fig, 3 © in section on an enlarged scale along the line 5-3 in Fig * 2 \ and

4 is a section on an enlarged scale along the line 4-4 in fig. 2

4 - if J

Like Pig. 1 and 2 show, the press is mounted on a base plate 12, at the ends of which four lateral projections 15 are fastened by means of bolts 14. On the narrow sides of the press there are drive beams l? A · Four hydraulic lifting cylinders 15 are attached to the gate projections 13, which are connected to the piston rods 16 in pairs on the sides of the press with pins 17 firmly attached to the beams 1? At the drilling of the press four vertical tie rods 18 are arranged, the lower end 20 of which is pivotably aagelenked on one of the pins 17 so that the 2tigstange opposite the beam 17a around the horizontal ax 19 of the entsgreeaeiadeja. Pin 17 can be pivoted. Bas upper JSnde # @ 3? 2ugstange 1st pivotally attached to the horizontal elongated ^ uerhaupt 22 of the press amgelenkt so that ® & can be pivoted relative to the crossbar about a horlaontale axis 22a 'the a * are perpendicular to the longitudinal direction of the ^ uerhauptes and parallel zn the axis 19 extends to the base plate 12 Two hydraulic pressure gimbals 23 are attached, whose piston rods 24 act on the bars 17a in order to move the crosshead 22 close to the bottom during one working stroke of the press.

In the center of the press, on silk surfaces 26 on the upper side of the base plate 12, a movable table is mounted, where this fish is provided with egg protrusions 25a, which grasp under the shoulders 26a on the arm of the base plate 12 that holds the iron. Ber 5? Isch by means of a hydraulic piston arrangement (not shown), which can be connected to Ä. © n % seh at 27 , - in JIg. 1 near left - out of the press,

The material to be bent is introduced into the press in the direction of the arrow B in Fig. 2 and, after pressing, leaves the press on the 2? Isch 2i>, which is driven on a © ine support 2 ^ b , which is a © VerläBgearaiig des represents the part of the base plate 12 that supports the table. The bent material can then be removed from the top by means of a crane or the like.

3Fig.3 and 4 show that each tie rod 18 one that is essentially rectangular when viewed horizontally - ^ uerBchnitt possesses and vertically displaceable is held by an IHihrung 19. The leadership exists each made up of a pair of opposing fixed guide plates 28, which are fitted with thermal wear plates 31 made of PhQs-

6 -

phorbronze are provided which have the vertical approximately surfaces jià ", which in the longitudinal direction; · 22 run parallel Sbenen the crosshead further are greei opposite .Federn ύοώ held guides $ 0 provided Versehleißpl & tten ZZ of phosphor bronze ndt vertical guide surfaces 32a bear, said. These extend in planes perpendicular to the longitudinal direction of the crosshead 22 * Two leaf springs 33 engage on each of these millings 30, which are pretensioned, for example, with a force of 1.42 tons per each, so that the ittarungem 30 against the edges 34 the fixed! MkeamgeE 28 driiektn · BIE 3? iöi3? QjJg © n 30 as IFIG. 4, i 'awei Üteereinanderli @ constricting & arrangements divided, s © that act on each Sugstange 18 eight springs. "BIQ Sehmier & Anaele 33 i the Guide surfaces of the HaosrphoJibrönaeplatten can be supplied from the lubrication channels 36 J & it Scbjaierffiittel. Of course, the leaf springs 33 can be replaced by coil springs or other suitable spring elements *

The invention enables the tie rods that the Querheoxpt 22 and the internal piston rods 24 and 16 connect with each other are sufficiently rigid to allow the

The press must be kept in an open position, but also be sufficiently flexible »to allow a deviation from the vertical position in the event of an uneven movement of one index of the cross head in relation to the other» This means that the press clearance is greater than the width presses with £ est arranged tie rods considerably can be © ht obtained without the öefa & r is a BesehädigtJtng of the tie rods. In the case of play, the attsfuhrungsfeei & piel di © lug rods shown in the drawing can be attached in the longitudinal direction of the crosshead at a distance of about 9 el (29 5 1/2 ") so that the press is large Material pieces © in, a © insigan Arbeitsgaiig can «

Claims (10)

BA.437150M9.8.66 'IJi, ■ if-' Kf claims 1. Press with a 'movable crosshead that is connected to the Drive devices via a multitude of tie rods is connected, characterized »that the tie rods (18) on one inde pivotable to the crosshead (22) and on the other Bn4e pivotable on the drive devices hinged and biased with springs (35) Guides (29) are slidably mounted. 2. Face with a vertically movable elongated one Crosshead and four the crosshead with the drive devices connecting tie rods, characterized in that that the tie rods (18) each at one end relative to the crosshead (22) pivotable about a Horizontal socket (22a) perpendicular to the longitudinal direction of the The crosshead is hinged, while the other end 56 / 0.13 in each case about a horizontal © axis (10) perpendicular to the longitudinal direction of the crosshead pivotally connected & en An "triebevorriohtungen (23» 24), and in that Ftüirungsvorriehtungen (29) are provided with pretensioned Federeleiaenten (35) "which" to de guides (30 ) attack in order to bring the tie rods into vertical position. 3. Press according to claim 2, date characterized in that the tie rods (18) in a horizontal Mchtong essentially have a rectangular cross-section and that the Guide device (29) made of two fixed guide plates (28), the bore surfaces (31a) of which run parallel to the longitudinal direction of the transept (22) and are made of two movable drilling pletons (30), their guide surfaces (32a) are directed perpendicular to the longitudinal direction of the crosshead, with prestressed spring elements (53) the movable guide plates (30) against the Press the corresponding tie rod (18). 4. Press according to claim 5 »characterized in that the spring elements consist of leaf springs (33). 5. Press according to claim 3 or 4, characterized in that that the. Spring elements (33) are preloaded, - 3 - / f around the movable guide blades (30) against the edges the fixed guide plate !! (28) to press. 6. Press according to one of the claims 3 "to 5» thereby, marked that the guide surfaces (311 32) Phosphor bronze exist. 7. Press according to one of claims 3 bia 6, characterized characterized that Sobmiereinriehtungen (35 »36) for Lubrication of the guide surfaces (31a * 32a) of the guide devices are provided. 8. Press according to one of claims 2 to 7 »the as Drawing press is designed, characterized in that the drive device has two on the narrow sides the press extending bars (17a) contains on which the lower ends of the tie rods (18) are pivotably articulated are and that two cylinder-piston assemblies (23, 24) are provided, each on one Attack beam (17a) to the beam (17a) and feeiadas Move the crosshead (22) downwards on the working stroke of the press. 9. Press according to claim 8, characterized by four lifting cylinder assemblies (15) connected to the beams, move the daa crosshead and beam upwards. 10. Press according to one of claims 2 to 9 »characterized by a workpiece supporting table (25) f on the one hand to. picks up pressing utensils, and that sliding devices (25b) are provided for displacing the table perpendicular to the sighting from which the bag is inserted out of the press into a position from which it can be enoi8ffien without being hindered by the cross-head / flower can.