DD253811A1 - GLASS PRESS, ESPECIALLY FOR THE MANUFACTURE OF LARGE-VOLUME AND HEAVY STEPS - Google Patents

Abstract

The invention relates to a glass press, which can be used both for fully automatic and for manual production of large-volume and heavy pieces, preferably made of glass. The inventive press is characterized by the arrangement of a between Fuell- and emptying or pressing position alternately movable mold trolley (Fig. 1). This mold trolley, z. B. driven by a Geromotor, is movable on parallel Fuehrungsschienen in the respective working position. After cutting the gob into the mold, the mold trolley is electronically controlled with exact positioning in the pressing position. After the pressing process, the mold trolley is returned to the emptying or filling position. On Formentragwagen a mechanism for opening and closing the mold half is arranged.

Description

driven. On the mold trolley 7 mold halves 10 are attached. On the mold trolley 7, a device 11 for opening and closing the mold halves 10 is attached.

The glass press according to the invention operates accordingly as follows:

First, on the mold support carriage 7 a generally designed as a hollow body mold base and attached to the Preßstempfel 3 a mold shell. Then, for example, in the position shown in FIG. 2, cut into the mold 10 of the gob. The control pulse of an electronic timer sets the drive 8 of the mold carrier carriage 7 in operation, and this moves into the pressing position.

After the mold carrier 7 is accurately positioned by means of known hydraulic components, another control pulse triggers the pressing process. Upon reaching the pressing position, the connection between mold carrier 7 and the Preßkraftgegenhalter 12 of the press is made independently via mold contact, so that the pressing forces can be absorbed. After completion of the pressing operation, a renewed control pulse switches on the drive 8 and the mold carrier 7 moves back into the filling or emptying position. A taker transfers the pressed glass article to a subsequent processing machine. By known per se hydraulic servo valve technology, a soft entry and exit is achieved in the working position. Of course, electric DC motors or similar means can be used for the drive.

Claims (2)

1. glass press, in particular for the production of large-volume and heavy items with at least one between a filling and emptying and a pressing position under a ram relative to a press table be moved form, characterized in that a guide rails (5) by means of an actuator (8) alternately in the pressing position under the ram (3) movable mold carrier (7) is arranged. 2. Glass press according to item 1, characterized in that on the mold trolley (7), a device (11) is provided which accomplishes the opening and closing of the mold (10) on the mold carrier (7), further on the mold trolley (7) a mechanism for cutting the , Glass gob is arranged in the mold (10). For this 2 pages drawings field of use The invention relates to a glass press, which can be used both for fully automatic and for the manual production of large-volume and heavy pieces, preferably made of glass. Characteristic of the known technical solutions Various types of glass presses, in particular for processing large-volume and heavy pieces, are already known from patent literature. So z. B. in DE-AS 2102080 a glass press described in which the forms are brought by means of a control cylinder alternately on pivotable support plates in the filling or emptying and pressing position. Such a solution, however, proves to be completely unsuitable for a fully automatic operation characterized by ball feeders and delivery devices, since the filling or filling operation is completely unsuitable. Emptying of both support plates for the mold is not in an intersection. Object of the invention The invention has the goal to enable either fully automatic or manual work with ball feeder and delivery on a glass press for large-volume and heavy items. At the same time, a high level of accuracy and quality of the products with reduced wear, economic maintenance, elimination of heavy physical work and reduction in the number of workers to be achieved. Explanation of the essence of the invention The invention has for its object to provide a glass press for large-volume and heavy items of glass, which allows either a fully automatic as well as manual operation and thereby produces articles of high accuracy and quality. According to the invention this is achieved in that the press is characterized by the arrangement of an alternately movable between filling and emptying position and pressing position mold trolley. This mold trolley, preferably driven by a Geromotor, is movable on parallel guide rails in its respective working positions. After cutting the gob into the mold, the mold trolley, triggered by the impulse of an electronic timer, enters the press position. By provided per se known hydraulic control devices exact positioning for each pressing of the pressing position is possible, at the same time a soft retraction is achieved in the working positions. After the pressing process, again electronically controlled, the mold carriage in the Entleerbzw. Filling position returned. On the mold trolley, a mechanism for opening and closing the mold halves is arranged. The mold trolley may additionally contain a mechanism for cutting the gob into the mold. Of course, the scissors for the cutting of the gob but also be assigned to the press in a known manner. embodiment The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawings show 1: the front view of the glass press,
Fig. 2: a plan view of the glass press. On press table 1 with the guide columns 2, the ram 3 with traverse 4 of a glass press not shown are two parallel guide rails 5, on which a four wheels 6 provided, movable in the working positions mold trolley 7 is arranged. The mold carrier 7 is provided by a geromotor 8 via a bevel gear pair stage 9