DE2144099A1 - Device for locking a pressure device mounted on a frame, in particular for hydraulic frame presses - Google Patents

Description

DR. ING. E. HOFFMANN · DIPL. ING. W. EITLE DR. RER. NAT. K. HOFFMANN

PATENTANWÄLTE D-8000 MDNCHEN 81ARABELLASTRASSE 4 TELEPHONE (0811) 911087 2144099

Paul Erb, Illkirch-Graffensta & en (Bas-Rhin), France

Device for plaguing a stored on a scaffold Pressure device, in particular for hydraulic frame presses

The invention relates to an apparatus for plaguing a printing device mounted on a frame, and in particular a printing device for vertical and / or horizontal frame presses.

For the production, especially when gluing together, of door, window and similar frames, devices are used, which are referred to in parlance as frame presses. These devices, often connected to a hydraulic circuit comprise a framework composed of vertically and horizontally arranged elements. These elements are

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provided with stops on which a frame rests or is supported will. In addition, these elements serve as supports for pressure devices, the pistons of which exert a pressure force on the frame exercise.

In order to achieve a correct compression, a relatively considerable Pressure force to be exerted. However, each of the printing devices must be held in a predetermined position independently of whatever the pressure force is. "Used to hold these pressure devices in place one generally uses a push rod that is operated either by a lever or by a hand wheel. This push rod drives an eccentric disc that has a Jamming of two non-positively connected claws causes.

However, these compression devices tend to move along the support member in response to the compression force they exert on the frame to slide, as a result of which the compressive force exerted is no longer sufficiently high, especially when the support elements have irregular surfaces.

The aim of the invention is now to counteract this disadvantage by providing an improved printing device, their predetermined position during compression holds and at the same time considerably increases the compressive force transmitted to the printing device, thus gluing the frame together.

This aim is achieved according to the invention with a device of the type described in the introduction in that it is used for exercise an increased pressure force on push rods of a main pressure device comprises a hydraulic control device, and the main printing device with a vertically positioned

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-rdneten beam and is in engagement with a horizontally arranged transverse beam, a frame to be produced bearing against these beams.

In the following the invention will now be explained in more detail with reference to the accompanying drawing, the described Embodiment is not to be regarded as restrictive, -is show:

Fig. 1 is a perspective overview drawing of a hydraulic Frame press in which the locking devices according to the invention and connected to their pressure devices are provided;

Pig. 2 a perspective overview drawing of the pest control device according to the invention,
and

Fig. 3 is an enlarged view from below of the invention Pest control device.

With reference to Fig. 1, a hydraulic frame press 1 is shown, which comprises a framework 2 which consists of vertically arranged beams 3, 4, 5 and horizontal cross beams 6, 7. The carriers 3, 4, 5 are at their lower part with stops 8, 9, 10 provided on which the lower longitudinal member of the frame

11 rests. Likewise, the cross members 6, 7 have two longitudinal members running parallel to the carriers 3, 4, 5 at their ends 6a, 7a connected. One of the side members 6a has stops

12 and 13 provided, against which a left cross member I ^ des liahmens 11 is applied.

On the carriers 3, ^, 5 slide the hydraulic pressure devices 15, 16, 17 in a guide, as well as the two pressure devices 18, 19 on the longitudinal beam 7a. Any of these printing devices is connected to a hydraulic circuit via a line 20.

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• Each of the hydraulic pressure devices 15, 16, 17, 18, and 19 carries a piston 22 (Fig. 2), the flange 23 of which against the upper longitudinal member 24 of the frame 11 or against the right Cross member 25 (Fig. 1) of the same frame 11 is applied. By means of the non-positively connected flanges 23, the piston 22 is exerted a relatively considerable compressive force on the frame,

In Fig. 2 and 3, the hydraulic locking device 26 is shown. It is intended to hold the printing apparatus 15 in its predetermined position on the carrier 3 and 15 ^to prevent any sliding movement of the frame structure produced by the locking device and the printing device along the above-mentioned carrier. 3 This unbexibility is necessary in order to guarantee a constant pressure force of the non-positively connected flanges 23 of the piston 22 of the pressure device 15 on the frame to be produced.

For this purpose, cap-shaped push rods 28 and 29 are provided on one or the other part of the body 27 of the pressure device. They consist of two parallel legs 28., 28 ₂ and 29 ^, 29 ₂ · ^The rear ends 30, 31 of the parallel legs 28, 28 "and 29", 29 ₂ are provided with vertically arranged clamping jaws 32 and 33, while the Connection is secured by hinge pins 34 and 35. These clamping jaws 32 and 33 represent an angle, one leg 36, 37 of which is connected to the legs 2S ₁ , 28 _g and 2 ^, 2 « _{2 of} the push rods 28 and 29 by means of the hinge pins 34 and 35, and the other leg 38, 39 against the surfaces 4-0, 4-1 of the I-profiles of the girders 3 »4 ·, 5 or the cross girders 6, 7.

The front ends 4-2, 4-3 of the legs 28 ^ 28 ₂ and 29 ^ 29 _{2 of} the push rods 28 and 29 are connected to one another by the cross struts 4-4, 4-5, which are connected with hinge pins 4-6, 4- 7, 4-8 and 4-9 are provided.

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A second pressure device 50 is arranged between the cross struts 44, 45 and is connected in the same way to the hydraulic circuit 21 via a line 51. One of the ends 52 of this second pressure device 50 is frictionally connected to one of the cross struts 4-5, whereby it can be pivoted about the axes 48, 49 when the piston 53 rests against the second cross strut 44. This second printing device 50 comprises, like any of the other a piston 53, a return spring 54, a head ^ 5 and sealing joints 56 "57 · In operation, is pressed by means of this second pressure device 50 Clià front ends 42, 43 of the legs 28, 28 ₂ and 29- _{,, 29 2 of the} push rods 28 and 29 apart. Because of the hinge pins 34 and 35, the push rods 28 and 29 form a lever arm, and the legs 38 and 39 are pressed with great force against the surfaces 40 and 41 of the carrier.

In order to reduce the sliding coefficient even more, grooved Contact surfaces 58, 59 are provided on the legs 38 and 39, or contact surfaces made of non-slip material.

To strengthen the frame structure produced, between the legs 28, 28 ″ and 29 ″, 29 ₂ outer push rods 28 and 29 wheel chocks 60 and 6 l are provided. A shaft 62 provided with your thread is provided on a star-shaped button 63, which makes it possible to clamp the locking device 26 on the pressure device 15 'and to prevent any rotation of these two elements relative to one another.

On the supports 68, 69, which are frictionally connected to the pressure device 15, the upper ends 66, 67 of return springs 65-64, and on the axles 72, 73 frictionally connected to the flange 23, the lower ends 70, 71 of the return springs 64, G ^ attached. If the return springs 65, 64 are released, they return the flanges 23 to their starting position, thereby releasing the finished frame.

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Even if the invention is based on a special embodiment has been described, it is obvious that it is by no means limited to this embodiment and that various Changes in shape and material were made can without departing from the scope and spirit of the invention.

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Claims (5)

Patent claims 1.J device for locking a pressure device mounted on a frame, in particular for hydraulic frame presses, characterized in that it is used to exert an increased pressure force on push rods (28,29) of a main pressure device (15,16,17,18,19) a hydraulic Peststelleinrichtung (26) and the main pressure device iTi-z a vertically arranged carrier (3, 4, 5) and. is in engagement with a horizontally arranged cross member (6,7), a frame (11) to be produced resting against these carriers. 2, device according to claim 1, characterized in that that the hydraulic locking device (2b) is one with one of several main pressure devices (15,16,17,18,19) second pressure device (50) connected to the supplying hydraulic circuit (21). 3. Device according to claim 2, characterized in that that the second pressure device (50) is a force fit with the first push rod (28) connected end, and one against a force-locking with the second Push rod (29) connected cross strut (Mj-) adjacent piston (53) 4 ·. Device according to claim 2, characterized in that the _{push rods formed by mutually parallel legs (2 ^, 2S 2} ; 29 _1} 29 ₂ ) have hinge pins (4-6,4 -7,4-8,4-9) for the positive connection of one of the push rods (29) with the body of the second pressure device (50) and the other push rod (28) with a through the piston (53) of the second pressure device ( 50) driven cross strut (44) are provided. -8th- 209811/1283 2144088 5. Apparatus according to claim 4, characterized in that contact surfaces (58, 59) on legs (38, 39) of clamping jaws (32,33) against surfaces (40,4l) of the Carrier (3> 4.5 »6.7) adjacent rough surface to increase the Friction coefficients between the jaws (32,33) and the supports (3,4,5,6,7) have lying surfaces. 20981 1/1283 Empty soap