DE1904019U - BELT FEEDING DEVICE FOR METAL WORKING MACHINES, IN PARTICULAR PRESSES. - Google Patents

Description

Γ ϋίi .-: tanwälie

Dipi.-ing. F. Thieleke ΠΑ Γ Ί PP Ί -1 1 P "7 Γ '

Dr-In ₀ . R. Döring - ■ H A. 3 j fa DI i * O U. ί. C.

Dr. J. Frlcke

S3 Braunschweig Jasperallee 1 a

Jean ICOENIG, in Rixheim (Haut-Rhin, France)

Belt feed device for metal working machines, in particular presses.

Priority: France, 2 August 1963

The object of the innovation is a tape feed device for the automatic feeding of presses, scissors or other such machine tools with metal belts in different Shapes such as iron straps, wires, rods, rollers or the like.

It is well known that in order to achieve profitable production it is essential to make the best possible use of the tool, with at least if the machine using the tool is not specially designed for a particular job for various reasons the machine should work under the most favorable efficiency conditions, i.e. with the lowest Dead time must be fed.

For this purpose, the furnace enables the conversion of a machine tool, e.g. an ordinary press, into a semi-automatic or automatic machine by simply adding an automatic feeder.

This tape feed device according to the invention is remarkable in that they are in a frame located under a housing, which at the front with an angle for his Attachment to the machine tool, e.g. a press, and at the back with a foot adjustable height for adjustment to the Height of the press plate is provided, two provided with ball joints Has clamping jaws which form fixed pliers at the front of the device and movable pliers, with particular Guides are provided for the passage of any profile, the alternating one causing the advancement of the strips Working of these two tongs is generated by an automatic pneumatic circuit, which is a feed working cylinder controls which of the movable tongs gives translational motion, two of the same pneumatic circuit-fed working cylinder, the forceful closing of the pliers, which, however, by a pressure reducer can be weakened, as well as cause their opening, with the strips passing through an alignment device and normally can be unwound on a guide roller, with two positive stops limit the stroke ends exactly, with Front and rear adjustable dampers with delay for the stroke ends and finally a manually operated valve which, in its switched-on position, causes the working cycle of the tape feed device to be repeated,

which is controlled by the return of the press to its top dead center, which in turn is controlled by the stroke end of the tape feeder is controlled.

The hiring is below with reference to
the drawing explained by way of example.

Pig. Fig. 1 is a side view of the device according to the invention with the housing of the frame removed.

Figure 2 is a profile view of the device.

FIG. 3 is a partial view taken along arrow F. FIG of the connection block.

As shown in Figs. 1 and 2, the tape feeding device comprises an apparatus which is arranged in a frame under a housing having a side movable cover 34 and a side fixed cover 33,
the frame at the front with an angle 29 for its attachment to the machine, e.g. a press, is provided and
behind by a foot 3 with a screw jack for his
Alignment is held on the table of the press.

The strip, which can be any profile (e.g. a band iron) and is unwound on the roller 13 and guided between two rollers 15 provided at the front and rear with adjustable spacing, is held by the fixed clamping jaw 19 and the appropriate clamping jaw 18 detected, which are attached to ball joints and have a shape corresponding to the cross-section of the profile and act like pliers, each of which
is actuated by a working cylinder 2 which is connected to an automatic pneumatic circuit. This
two working cylinders 2 cause a very powerful

Closing of the clamping jaws (the highest small force is more than a ton), which means the attachment of a roller straightening device without producing a sliding of the strip, as well as the opening of these jaws. With sensitive Materials such as Aluminum, polished stainless steel, etc., a pressure reducer 27 enables the reduction of the Inhibiting force to prevent marking.

One connected to the same pneumatic circuit

3 ...
This feed working cylinder / transmits the translational movement to the movable clamping jaw 18, and the alternating work of the fixed tongs 19 and the movable tongs 18 generated by this circle causes the tape to be advanced. At the end of the working cylinder 1 tabs 12 are provided for the eventual attachment of a tape alignment device.

The stroke can be adjusted by means of the screw 22, which is blocked by the flange 32, line guide shaft 31 ensures the perfect alignment of the jaws.

Two positive stops 20 and 30 limit the stroke ends with great accuracy on the order of 3/100 by actuating valves 23 and 16. Valve 11 is permitted adjusting the rear shock cushion while the length of the rear cushioning is adjusted by a squat 21. The front shock cushion can also go through a screw 24 can be adjusted. The delay at the front and rear end of the stroke is set using the Valves 9 and 10.

A manually operated valve 4 is in the position

"On" to produce the automatic mode of operation and in brought the position "closed" to the end of the work cycle. A manually operated valve 5 allows the fixed ones to be opened Forceps in the rest position. 6 and 7 denote the distributors and 8 a pulse converter. An "oil metering screw" 14 » Brake valve 17 »a filter 26 and a lubricator 28 are also provided.

The connection block 25 carries the contacts for the circuits 35 for triggering the press, the circuits 36 for the supply, circles 37 for return and circles 38 for any other program.

The above device works as follows:

When the valve 4 is brought to the "open" position, the movable pliers pulls the tape, e.g. a band iron, to the front end of the stroke. At this moment the fixed tongs hold the band iron back, the movable tongs release it and initiates the decline, and the pressing process is triggered by a small working cylinder.

When the press has returned to its top dead center and the movable tongs are back in their original position, the band iron is clamped and the next advance takes place.

The sequence of operations arises with any number of revolutions of the press and with any required number of revolutions Feed length automatically. The work cycles are repeated automatically. When the valve 4 is in the "closed" position the work cycles stop, whereby the

movable forceps is in the starting position.

If for any reason a work cycle of the work cycle could not be carried out, e.g. as a result of Blockage of the iron band or a shutdown of the press, the compressed air must be turned off before the usual Measures are taken.

It should be noted that only certain settings are changed for the transition from one work to another need to be, while the others remain practically unchanged for a large number of jobs.

Claims (1)

536 611 - '30.7.6h,? _ 7 right to protection Belt feed device for the automatic feeding of presses, scissors or other such machines with metal belts in various forms, such as steel straps, wires, rods, rollers and other profiles, characterized in that they are at a front with an angle (29) for attachment to the Machine tool and at the back with a puss (3) with a frame provided with a height adjustable by a winch under a housing two clamping jaws (18, 19) provided with ball joints of adaptable shape for the passage of a profile of the intended arbitrary shape, one of which (19 ) is stationary and the other (18) is movable, the movable jaw being given a translational movement by a feed working cylinder (l) connected in an automatic pneumatic circuit, which causes the feed of the tape, which is normalized by a guide roller (13) and between two adjustable Abstancisrolle (15) is unwound, two in the g With the pneumatic circuit switched on, the working cylinders cause a powerful closing and opening of the clamping jaws, possibly reduced by a pressure reducer (27), whereby the belts can run through a roller straightening device, with two positive stops (20, 30) for the end of the stroke with adjustable damper cushions and a valve (4) are provided, which in the "open" position causes the repetition of the work cycle of the tape feed device, which is controlled by the return of the controlled machine tool to the top dead center, which in turn is controlled by the stroke end of the tape feed device.