DE7119648U - PRESS FOR CUTTING OUT - Google Patents

Description

Lie iirfindunp; concerns a press sum punching out of Fittings made of leather, plastic, textile fabrics, Cardboard or the like.

Presses for punching are known and are in the form of bridge punching, ochwenkarmstanzen and roller punching built. Lie bridges and swivel bodies carry the Litancy meter on the underside of a printing plate, while with the Kollenstanze the punching knife at the length can be subordinate to one hell. Furthermore, one knows presses and punching of the type mentioned, which on a Liruck plate and punch knives loosely placed on the material to be punched act. What these punches have in common is that the pressure forces are very great because the punching knives during the actual Stanζvorgangeε about their entire length can be applied at the same time.

The invention is based on the task, a simple one To create a designed press that will only let you down Requires contact pressure when punching.

According to the invention, the combination of a swivel arm punch and a roller punch is used to achieve this object suggested.

In particular, the press according to the invention comprises an underframe and at least one, the punching pressure on punching knife on a punching table as well as the punching roller exercising the material to be punched. Furthermore, the punch roll respectively the punching rollers and the material to be punched are arranged so that they are used for punching out around a common Axis are pivotable relative to each other.

By the inventive combination of a swivel arm punch and a roller punch is achieved that during the pivoting movement only a limited The area of the punching knife or only parts of the same are put under pressure ^ The contact pressure required for this is relatively small and can even be easily applied by an operator, wjegaa this the swivel arm of the press over the punching table pulls.

bor ^ chwenkerm's I-retae is preferably with at least

SiilSf s? T ° P "TOlle provided.

However, it is also possible to provide the punching table with at least one punching roller, the punching roller being arranged below the punching table.

p. To prevent the punching roller from slipping during the pivoting movement

To prevent on the printing plate, sees the invention before that the punching rollers are designed as tapered rollers.

According to a further feature of the invention, the punching rolls, as cylindrical % f..ize'a, have the shape of small rolls rotatably mounted independently of one another.

Finally, the invention provides that the swivel arm BEZW. which can be pivoted underneath the punching table

"* arranged punching roll carrier in its pivoting movement

is drivable.

The invention is described in more detail below with reference to two exemplary embodiments which are shown in the drawing. Show:
Figure 1 is a plan view of one half of a

inventive press with out of rolls

formed punching rolls;

FIG. 2 shows a side view of the tress according to FIG. 1; FIG. 3 is a view from the front of the press according to FIG. ^; ss

Figures 1 and 2;
FIG. 4 shows a side view of a further exemplary embodiment of a press according to the invention

a conical roller-shaped otanzrolie and FIG. 5 is a view of the press according to FIG in front.

The press 1 shown in FIGS. 1-3 for punching out shaped pieces comprises a subframe 2 and a stand 3, which serves as a support for a “swivel arm 4”. At the free end of the ochweiikarmes 4 ΐεΐ a holder 2'i and em stand 3 a bearing part 2C, in which a dance roll consisting of independently rotatable hell 6 is mounted.

From Figure 3 it can be seen that the press 1 has two dance rolls 5, which are at an angle to one another and radially to the axis of rotation of the pivot arm 4. The rolls 6 of the punching rolls 5 are arranged offset in such a way that the rolls 6 are a StFizrolle 5 lie in the gap of the rolls 6 of the other punching roll 5.

The subframe 2 carries in the swivel area of the punching

rolls 5 a rigid dance table 8, on which the; Jdanz-Eesser 11 un :: “as ^ tanzgut 12 lie.

.. becomes the Au ;: stenzen der .chv / enkarm 4- for example on the handle 16 over the dance table 8 of its Pulled one side to the other, there is a continuously increasing load on the punched material 12 through hell 6. The force required for this is very small, since only one is small Part of the material to be punched 12 and the punching knife 11 comes into contact with the Köllchen 5.

As a drive for the pivoting process, a chain drive 14- is also provided, which is from one in one Cylinder 15 acted upon by a pressure medium piston can be set in motion in one direction or the other.

The embodiment shown in Figures 4 and 5 shows a press 1a, which has an underframe 2a, a stand 3a. and a pivot arm 4a. on The punch knives 11 are arranged directly on the underside of the pivot arm 4a.

The punching table 9 is flexible and between side parts of the underframe 2a firmly clamped.

Below the dance table 9 there is a swivel

"ble punching roll carrier 18 for a tapered roller Punch roll 7 x 2 punch roll carrier 18 ″ consists of two approximately parallel struts 19, which at one end to the bearing part rotatable about the stand $ a 20a are attached. On the free inde of the struts 19 there is at least one roller 22 for iro underframe 2 a suitable track 23 is formed. From the free end of the struts 19 extends a Bracket 21a upwards and serves as a bearing for the tapered roller-shaped punching roller 7, the axis 13a of which. further is stored in the bearing part 20a.

As can be seen from FIG. 5, the conical roller-shaped presses Punch roller 7 when pivoting from one cooler position into the other from below against the flexible one Punching table 9 and presses this and the punched material 12 against the punching knife 11. Here, too, is a continuous;

^. Licher punching process before, in which because of the mostly;

f!

point-wise contact of the punch knife 11 j

with the flexible punching table 9 only very little work;

forces occur. j

! This press also has a chain drive 14a j

and a pneumatic auxiliary device 15a existing \ drive for the punching roller 7. The swivel arm Aa with the punching knife! *. 11 before and after each work step with help? of the handle 16 is pivoted.

- The invention is not limited to the illustrated and described exemplary embodiments; details can often be adapted to the respective purpose without deviating from the basic idea of the invention.

Claims (7)

Speech: 1. Press, characterized by the combination of one swivel arm punch and an ixollen punch. 2. Press according to claim 1, characterized in that it has an underframe (2, 2a) and at least one, the punch pressure on the punch knife (11) a bar table (8 or 9) and the material to be cut (12) exercising punching roller (5, 7) comprises. 3- face according to claim 1 and 2, characterized in that dast the punch roll (5 »7) respectively. the punching rollers (5, 7) and the material to be punched (12) are arranged in such a way that that they can be pivoted relative to one another about a common axis (24) for punching out. 4. Press according to claims 1-3 »characterized in that that the swivel arm (4, 18) is provided with at least one punching roller (5). 5 · Press according to claims 1-3 »characterized in that that the punching table (9) with at least one punching roller (7) is provided, the punching roller (7) being arranged below the punching table (9). 6. Press according to one of claims 1-5 »characterized in that the dance rollers as a cone ■? rollers (?) au.sg-ebilc.et sine. 7. J-Te ε se according to one ~ dei claims ^ - 5 »ds characterized in that the stent rolls are cylindrical rollers (5) with independently rotatably mounted rollers (6) are formed. Frerse according to one of claims 1-7, characterized in that the swivel arm (4-) be zw. The Punching roller supports (18) arranged pivotably below the punching table (9) can be driven in its pivoting movement.