DE1964563U - DEVICE FOR ROTATING REMOVAL OF WASTE FROM PUNCHED SHEETS. - Google Patents

Description

48O3 Steinhagen / Westf.
Lärchenstrasse IO9I

Patent and utility model auxiliary application

! Object of the control relates to a device which -from alone or in conjunction with conventional punching presses and punching machines, the waste from punched sheets of paper, cardboard or plastic to worked out benefit automatically removed or breaks out ", and this waste: separately won the actual SOrmnutzen discharges.

· * Break-out devices are known per se, see above

1) on the punching machines from Bobst and Wupa ·. The disadvantage of this procedure consists in the fact that the breaking out takes place in the lifting process

jij, in contrast to a horizontal fixed male mold and a horizontal fixed male mold Die". The changeover times are very long here and require one Repeat work the same time as a new work (between 3-6 hours.)

2) Rotating stripping. Here are on two opposite each other Waves wheels are applied adjustable, which are equipped with so-called stripping pins adjustable. Here too they have to open The break-out pins attached to the upper wheels engage an adjustable lower die. The disadvantages of this method are the same as mentioned under l).

3) Rotary stripping, patent from Walker, Ehfield, England. The method consists in that in a sheet of fabric or fabric Paper break-out pins are inserted. These sheets of tissue are stretched on a lower cylinder, the pins pierce those on one other cloth tape_transported_refuse_and_ rings. in._e_ an upper_ rotating Brahtbrush as a counter bracket. Disadvantage of this process!

»Long set-up time and rapid destruction of the conveyor belt through the ongoing punctures.

Disadvantages of all three systems are that neither the gripper edge to the punched sheet can be broken off or broken out completely and that generally strips of less than 2mm cannot be broken out.

Another major drawback is that the rotating stripping process not with lifting punches and the stroke breakout not with rotating punches such as e.g. with Heidelberg cylinder machines can be applied.

All these evils will be eliminated by the rise in prices. she consists in the fact that there are two superimposed driven There are cylinders in which the upper cylinder is adjustable in height so that the material to be processed does not come into contact with cylinder A; can come. Marking points and print damage are caused by this avoided. This is especially bad with high-quality bridges drying bridges are important.

Ben? upper cylinder JL is made of in with an easily removable jacket Al bendable material such as rubber, leather or plastic or the like Mistake. This jacket Al comes flat with break-out pins or break-out segments A2 made of solid material such as metal or plastic and A3 cutting knives. Bie equipped with break-out pins A2 or Cutting knives A3 is done in such a way that a punched sheet is placed on the flat jacket A1 and the waste in its cutting lines be drawn or outlined on the flat jacket A1.

II

The jacket Al with this type of equipment is now attached to the asx two dowel pins A4 Cylinder Al fixed on and tightened with two tensioning screws A5. Depending on the system of the punched sheet, the cylinder A can radially through the driver flanges A6 be adjusted The adjustment also ensures an exact register different gripper edge of two different operations. The kind of sheathing and the setting for Paseergenamigkeit can be in a few Achieve minutes, both "with a different iOrmat size and" with a other die cut.

In the case of repeat orders, "with this procedure only an exchange of the" equipped ones is required Sheaths necessary "When sheaths are once" equipped easily stored in a flat state. Badurch eliminates the time-consuming Changeover times as with the known methods.

The lower cylinder B is covered with a very elastic material (foam rubber, line— rubber or foam) Bl coated. This sheathing is done by simple Glued to the cylinder B and has by the nature of the new stripping process a very long lifespan. About cylinder B and the cylinder jacket Bl do not require any changes in the case of a format change or another cutting form » The material does not come into contact with cylinder B and jacket Bl either ( excluding the excavated waste). The non-contact of the Eutzmaterials against Al and cladding Bl is through the following construction guarantee st.

The punched sheet is made by metal or plastic wires running in the working direction and / or bands B2 worn. These carrier elements B2 run at the peripheral speed of the upper cylinder A and transport the material to be cut alone by means of adjustable drivers. The sheath Bl lies with hers highest point under the support elements B2.

β-

© ie stripping pins A2 in the jacket Al press the waste out of the lying on the carrier elements B2 workpiece on the Mant el Bl, which by its rotating movement, the waste (broken out material) in a designated chute: or transported on a conveyor belt. The support elements B2 are supported by grooved, adjustable guide strips B3 and B4 right up to the narrowest possible gap (see Fig. 2, distance X). The support elements B2 lie in the guide strips up to the distance X, so that they cannot carry out any transport themselves, but rather the transport is carried out exclusively by means of attached drivers. Another purpose of these grooved guide strips is that the guide elements B2 are stretched as tightly as possible in the actual working area distance X and can thus act as a die. In this way, the waste is safely pushed through between the carrier elements B2 through the breakout pins A2 and the jacket B2, from there to a slide or a conveyor belt, while the actual benefits are brought to a separate storage area by the carriers of the carrier elements It must also be mentioned that the lateral alignment of the workpiece is carried out by means of adjustable straighteners, which are generally known.

Claims (1)

. RA.289183 * 26.5_67 Expectations Claim. 1 , characterized in that a "bendable but firm jacket Al is easily removable around a cylinder A, which is equipped with pins A2 and knives A3, the pins (segments) A2 and knife A3 all or separate : Press or split waste through the carrier elements 332 onto the cylinder B with the jacket B1. * ^ SSEEäSiL ·? ™ ,? characterized in that the cylinder A designated in claim l) is adjustable in height and also radially ν claim 3, characterized in that the jacket Al by the Figcier pins A4 and clamping screws A5 in the exact working position at any time and quickly can be brought. Claim 4 »characterized in that the self-bendable jacket Al according to claims 1 and 3 is equipped with break-out pins A2 depending on the IOrm of the workpiece or the waste. Claim 5 , characterized in that the cutting knife A3 according to claim 1) can be used to cut in any direction, so that each waste can be divided up so that the individual pieces fall through or are pressed through with certainty between the carrier elements B2. . Claim. 6 , characterized in that the carrier elements B2 in the area of action of the break-out pins A2 by the grooved guide strips B3 and B4 so Tense — are _T -that — they — die- -4 & -e4jaeg - ii! be3ae — oke3 ^ . Waste pieces act as breakout matrices. Claim T j, characterized in that the guide strips B3 and B4 are grooved in such a way that the uppermost point of the support elements B2 lies in a plane with the upper surface of the guide strips B3 and B4 or slightly below it.