DE1602509A1 - Device for cyclic, adjustable material feed in presses - Google Patents

Description

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FRITZTHIELEKE DR-IMG. RUDOLF DÖRING JDR.JOACHIM FRICKE

BRAUNSOHWIIQ - MONGHEN "^

M ull er & \ Cie. ^:: ': V:

119, Avenue Paul-Vaillant-Gouturier 94 Grerrt4ily / Paris (France)

"Adjustment to the cyclic, adjustable material feed : Press "-; '

The invention relates to a device for clockwise, adjustable Factory feed for presses with step-by-step; medium; ■ "■ a stepping mechanism from the press driven feed rollers, which grasp the material in the Zleramschluss.

In addition to the roller feed already mentioned at the beginning, the so-called Eanger.- feed is also known in the case of presses, in which the strip material is grasped, moved, released and after a return movement of the Forceps is grasped again .; This kind of material processing does not allow high work speeds ; ': _

During the roll feed, the material is between zwsi Weiset; i ^ Kltirnr / iLuß recorded. With a.er ^: known: device for V'o

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C ₀ aen of the material in the case of presses, the feed rates are over

- »P.'eilaufkupplungen gradually twisted ,. Also this well-known before

"^ Direction is at _hoheh; Arbeitsgeschwind CANDIES unbra; ict) IA: - vv.e il

' _Λ the pre-run clutches are no longer "in the position that occurred e / 7

to absorb the inertial forces without errors .. Sin more exact, 'gfeiiüiier T / orlcstoffvor ^ chüfc is with the: with; Fro il t uf kupplunran atiD / * &r'"s' ■ -1 i- ^ rx i'-U ^ güüM .. .:. g ^^ Oij'lßlGutt * ■: "■ BAD ORiGlNAL

1602503

High working speeds and precise material feed guarantee devices for adjustable, cyclic / iron work off ν or schüb for presses which are of the type mentioned at the beginning are trained. In this known device, a stepping mechanism known in the technical field as a "Ferguson gear" transforms the continuous rotary motion derived from the press is, in a step-like rotary movement, wob ei, depending on the design of the stepping mechanism or Ferguson gear, per Prer.senhub a sixth or eighth of a turn of the output shaft of the Ferguson gearbox is generated. In the known device The feed rollers are used for the cyclic, adjustable material feed directly with the output side of the stepping mechanism To change or adjust the size of the feed path a change of the feed rolls with this device performed. For .each eligible ■ Vorrjchubv.eg is also a corresponding set of feed rollers is required.

The disadvantage of this known device is un 1-v ^ ± r. , because the size of the feed can only be adjusted in relatively coarse steps. Nevertheless, the levels relative ^ r o3 \ -rnarcen v.-fi de '..' Lr ζ However, for detecting a wide range ExnStellbo it a- rroö- Ai.-number of different feed rollers required. Daüurej- e \ -: L'ur. itself, a high cost, because die'Vorschub roller η ^ ucr.za- to achieve a great work accuracy with high?. ·.! -:.:. ~ be made and also a hard metal tread ai; _ "we yuoü to protect the running surfaces that act on the material from ν:: - .. ·: η rapid wear. Corrections of a ^ e ^ - ■■ ^r Z. ~ ■ - :. ' Feed CvS, which are required, for example, u: -: C'sloranzen of the material, which are processed by the press -.vir. ,, 1 · -1ο ".. cannot be made with the known'Vorvorgenominen v; erci. Ir. - ■. . .-: "^. riU:;" · - ^; -; . ! i ^e: e Fence Hey the bokan ^ Mn ^r ~ ατιΊΖζ: ■ -. . -

0 0 9 8 17/0280 bad original _

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that not always with the desired utilization; ■■ des .Bandwerkütoff it work can be done.

The invention is based on the object, the described ITach parts of the aforementioned device to avoid and these .so "anszuibil-äen: - that they are simple, especially cost-saving Structure of a fine-grained setting of "Vorr.chut / grö-S-e enables. ·

The introductory section is used to solve the above-mentioned problem described device according to the invention in that the stepping mechanism l-ber, a change gear with a Coarse setting level for the basic feed and a further fine setting level for the correction feed with the V /. 'Vice η combine η is. ■ -.- '. "

In the new design of the device, the use one, Y / echselradgetriebes a wcs -'- ntlicne Kostcr. ^ e: .- kung scored because it can be used to capture a great snoop You should now be expected to find an enirc ^ recler.c large set of Vorsohucv.alsen untej-Dchieäl i >> r size vorr ^ vir to keep the precision required by the Her "-; .ilunr and, .en noxv / 'endigen Hartriet al! topping is relatively expensive. 3i; .rcr iiπ ·· !, correspondingly large set of change gears under.iohiudlicher

Number Zäh ivj - :: ahl can be almost any 'finely stepped el η £ r: -, - 111 \ rl · r

Before: .chubwer; e with little effort. To be. .Uen Srunc feed and in a fine? The adjustment stage for the Xorrek feed makes it possible for the first time to adjust the normal provided :henen Grutidvor; 3 thrust on a change gear stage and Jie errors resulting from 7 / arkr, tofftoleranzen by en λ = nrecher.de .. ig der KorrBk ^ ur- or fine adjustment to koi-.r.on .-- ivr-: v. 00 981 7/02 6 D BAD

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A very precise setting can thus be achieved with simple means of the advance, and the material advance brought about by the device is also carried out with great accuracy. The adjustment and working accuracy of the new device is 1 / 100th of a millimeter, and it can work at speeds or feed speeds of 60 m / i / .in forfeited will.

In an expedient embodiment of the new apparatus is provided ψ, the change gear transmission having a choice of the direction of feed, and for diameter adjustment of Peineinstellstufe serving rotational direction reversal or Drehrichtungsumkehrradsatz.

The new device also characterizes itself according to the invention also because it can be used either on the input side or on the output side of the press, preferably swiveling out Attachment device that can be attached to the press.

Finally, in a further embodiment of the invention still provided that the feed rollers by means of a lifting device Optionally in the work cycle of the press, independently of the work cycle, can be lifted off from one another in a controlled manner or during shutdown the lifting device remain in their clamping division.

An embodiment of the new device is in the drawings shown.

BATH ORIGINAL

009817/0200 '

- 5- 16Q2BG9

Figure 1 shows a gear plan of the new device, Figure 2 shows a partially sectioned front view of the new

Contraption.
Pigur 5 shows a side view of the new device.

The gear plan of the new device for clockwise * adjustable material feed at Eressen, which is shown in FIG shows the flow of power. The new device will driven by the press, preferably by its crankshaft. The continuous rotation of the crankshaft becomes the • drive shaft 1 of a stepping mechanism 2, which in the technical world under the Came "Ferguson gearbox" is known, fed in * from σleser

from.
continuous rotary movement, a sequence of pulse-like successive rotary steps of an output shaft 3 is generated for the indexing mechanism 2. On the output shaft 3 there is a gearwheel 4-

Stigt, which meshes with a gear 5. Which in turn is received on a common shaft with a further gear 6. The gear 5 and the gear 6 are non-rotatably connected to one another by the shaft 7. The gear wheel 6 meshes with a further gear wheel 8, which via a shaft 9 can not rotate with a gear wheel

or aineii ZwisQhenraaaatz

¹ , which in turn meshes with a gearwheel 12 via a 2wisch6nzahßrad / i1, which is received directly on a shaft 13, via which a gate feed roller 14 is driven. The feed roller H cooperates with a counter-feed roller 15 which is geared to the feed roller via gearwheels 16.

The gears between the indexing mechanism 2 and the feed roller 14 or 15 form a change gear, which makes it possible to keep the diameter of the feed

^v '. '' BAD ORIGINAL

roller 14, to be regarded as a directly driven feed roller is to set different feed rates. The gears 4, 5, 6 and 8 form a coarse setting stage for the basic feed, that is, any "required feed path alone "Appropriate choice of these four change gears is set. It should be noted that the gear 8 generally remains constant and is not replaced.

The gears 10 and 12 form a correction or fine adjustment stage of the change gear and allow the in the

P Correct the selected feed path for the basic or coarse setting stage, fine adjustments can be achieved that, in relation to the feed path, are in the order of magnitude of 1/100 mm · Correction or fine adjustments can be made from several Causes become necessary. One cause is, for example, the operational wear of the feed rollers, especially the 'Feed shafts 14 ·, which are not even due to a hard metal layer can avoid * and which over time leads to a reduction in diameter leads. Through this reduction in diameter of the yor- ' feed roller 14, the actual feed path becomes smaller than the feed path set in the Örob- or Grundvorsohubeinstellstufe. A. corresponding replacement of the two V / change wheels 10 and 12 it now shapes the wear and tear caused by orphans to adjust the feed path that has become small again to the correct size. Another example of the need for a correction or fine adjustment stage arises primarily at high feed speeds or working speeds of the press, At high speeds, that of the material tends the pre-travel distance covered to be larger than the ■ The setting in the basic or coarse setting level corresponds to. * j 7 00 9017/02 β 0 BADGiRIGINAL

-? -: 1802609

The appropriate choice of WechselwädjBrTO and 12 can now be made by the Errors are compensated and the ^ orschuTa on the desired Value must be set exactly. ":"

The toothed wheel provided between the Weohselwheels 10 and 12 or the .Zwischenradsata 11 is an Ifcehricht ^ gs-ünücehrriiC Iszvi. Set, which also serves as an equalizing gear or gear set when changing the diameter of the change gears 10 and 12. The necessity of this gearwheel results from the requirement for a versatile design of the device / so that the feed direction can be adapted to the respective needs. The new device is designed as an attachment device and can optionally be attached to the press on the input or output side in a detachable and height-adjustable manner. The gear wheel 16 between the feed roller T4 and the feed roller 15, which is shown in the gear diagram (FIG. 1), symbolically represents a series of; a plurality of gears 16a, b, G ₇ d (Fig 2 and Fig. 3.), ^ rich required are: - to the overall. \ _: drive connection of the two feed rollers 14 ^ and 15 as well. _Λ / then to be able to maintain »■■ when the feed roller 15“ is removed from the machine in the work cycle of the machine. Feed roller 14 lifts * This lifting or releasing the feed roller 15 is required for operation where the tools of the press with catch ¹ or centering pins being ^ ü & tet are that low Korrekturversohiebungen cause the work Stoffee. \. ^: ;

The reference signs selected in Fig. 1 ^ have been used in Fig. 2 and Fig. 3 for the same components of the device. It can be seen, however, that the new device has a housing or a base plate 1? which can be attached to a press. The cultivation _can: as already mentioned, either at the outset "and the output side; at the pre ~ _te a

^ 000817/0280 ν - / 8

take place. The elongated holes 19 make it possible to move the press in the vertical direction .solange until a material strip 21 is equipped exactly at the height of the tools of the press. Joints are preferably provided between the press and the base plate 17, which allow the sown device to pivot out to the side. In Fig. 2 it can also be seen that the shafts 7 and 9 for the change gears are mounted on eccentrics or double eccentrics or have displaceable bearings in order to be able to compensate for the center distance occurring when changing the change gears and to avoid backlash.

2 clearly shows that the feed roller 15 is mounted in "height-adjustable cheeks 22, which are pressed under the action of a set of springs 23 in the direction of the feed roller H. In the interests of versatility, one in the figures is not detailed Marked lifting device is provided. it permits the feed roller 15, either constant in the terminal end to the roller 14 to charge or respectively against the springs 23 · ϊΐη working cycle or also independent of the working stroke W of the press, controlled by the roller 14 'the band of material 21 lift by canceling the clamping circuit. in order to prevent the feed roller 14 under the influence of Massenkräfte'bei high Vorsohubgeschwindigkeiten and high stroke of the press larger incremental steps zurüoklegt as is provided, it is "equipped with a brake 24, which in time with the work of Press is engaged and disengaged.

BATH ORIGINAL

009517/0280

Claims (4)

Claims. 1) Device for cyclic, adjustable material feed for presses with step-by-step, by means of a step switch mechanism from the press ^ Grasp the material in the clamp, since d, u raw ' k en η show η e t, - that the stepping mechanism (2) via a change gear with a coarse setting stage for the basic feed rate and a further correction or fine adjustment level is connected to the rollers (H, 15). 2) Apparatus according to claim It dad ur ο hgek β η η - ζ eich η et that the change gear has a direction of rotation reversing gear or a reversing gear set (11) serving to select the feed direction and to adjust the diameter of the Peineinstellstufe . . 3) Device according to claim 1 and / or 2, g ek enn - ζ ei oh η el through training as an optional input ÄAütr Auegangeifttif m dir ^ | · ** β ytrwelxabar · »; preferably aus-ioi ^ in ^ bajp an; the Preeee befeetigba ^ s ^ attachment »' ^? / 4) Device according to one or more of claims 1 to 3 »because you r oh geke η η ζ β ίο h η et _f that the feed rollers (14, 15) by means of a lifting device optionally in the work cycle of the press, independently of the work cycle, controlled can be lifted from one another or remain in their tr terminal division when the lifting device is shut down. L e r s e i t e