CS264083B1 - Intermittent cooling mechanism - Google Patents

Abstract

The intermittent cooling mechanism as part of the cooling system of the glass-making machine molds consists of a flap connected by a piston pin to the piston rod of a pneumatic cylinder connected by a lower pin to a frame that is provided with an inlet opening and a damper connected to it with a regulating screw. The regulating screw for setting the limited cooling is guided in the frame, to which the distribution stand of the cooling system is attached.

Description

The invention relates to a mechanism for intermittent cooling molds ^of a glass manufacturing machine for glass containers.

The hitherto known embodiment of the intermittent mold cooling mechanism is designed as an axially mounted flap driven by a rotary pneumatic motor and located under the frame of the glass machine. The disadvantage of this solution is that, when used in an in-line machine, the floor under the machine needs to be adapted to supply cooling air to the mechanism. Adjusting the floor or ceiling is very costly and often impractical in older glass halls. Another disadvantage is the considerable distance of the flap from the location of the cooling air exhaust to the molds, so that the effect of the interrupted cooling is delayed when the cooling is switched on and off. Also, accessibility to the flap is very limited and requires different remote controls. Another known intermittent cooling mechanism is designed as a swiveling flap located on a table of an in-line machine in a rack, through which cooling air is discharged into the distribution cooling nozzles for subsequent blowing of the molds. The disadvantage of this solution is the limitation of the size of the molds and thus the size of the glass containers, which is given by the space, which the solved stand with the flap occupies at the expense of the mold. A further disadvantage is that due to the limited construction space, the damper does not allow intermittent cooling with a permanent. minimum cooling or it is not possible to continuously control the value of constant minimum cooling. Such improved solutions allow. at most a step change in setting, but requiring a partial dismantling of the mechanism, resulting in loss of packaging production when the machine is out of service during conversion to other necessary cooling conditions.

264 083

The above-mentioned drawbacks are eliminated by the intermittent cooling mechanism according to the invention, which is based on the fact that the flap is connected by a piston pin to a piston rod of a pneumatic cylinder connected by a lower pin to a frame having an inlet and a slide.

An advantage of the arrangement of the intermittent cooling mechanism according to the invention is that it can be installed under the cooling air distribution rack, which does not limit the size of the molds and thus the glass containers produced. Another advantage is the inclusion of a slide for continuously adjusting the permanent cooling of the molds, if this is necessary from a technological point of view, and the adjustment can be carried out without removing any components of the mechanism. The mechanism itself is readily accessible and allows the molding to be installed just in front of the exhaust air, so that the effect of the intermittent cooling coincides directly with the flap movements actuated by the pneumatic cylinder.

In the accompanying drawings, FIG. 1 shows a longitudinal section through the intermittent cooling mechanism with the open flap, and FIG. 2 shows a similar section with the closed flap.

The illustrated intermittent cooling mechanism consists of a pivoting flap 1 mounted on the frame k by means of a fixed pin 8, the movement of which is controlled by the piston oep of the piston rod of the spring-loaded piston 4 in the frame 3. 11 (11) with a fastening screw 12 which is rotatably mounted in the plate 16 forming part of the frame h on which the distribution stand 14 of the glass machine cooling system is mounted. pin 15 for frame 4.

The intermittent cooling mechanism according to the invention operates in that in the basic position (FIG. 1), the damper 11 is held by the pressure of the air in the pneumatic cylinder 3 transmitted by the piston rod 2 to the piston pin 5 so that cooling air can flow through an outlet opening 11 'to a manifold stand 31 and further to nozzles (not shown) for the manifold

In this position, the cooling air surrounding the entire intermittent cooling mechanism can also flow through the inlet opening <> if it is not closed by a damper 41 controlled by the glass screw as required by the control screw 12 into the outlet opening 13; further on welding forms (not shown).

If it is necessary to limit or interrupt the cooling of the molds in view of the desired change in the forming conditions, the situation shown in FIG. 2 occurs. Does the spring change the air from the pneumatic cylinder 3? £ piston rod controlling the piston pin J5 IdaiJku l _t that closes the feed opening 10 "According to the position of damper 11 relative to the inlet opening of the cooling air can be cooled further limited by permanently welding the mold and cooling, or may be completely interrupted, in accordance with the need of glass technology.

Claims (2)

SUBJECT OF THE INVENTION An intermittent cooling mechanism of a glass machine with a swiveling flap, characterized in that the flap (1) is connected by a piston pin (5) to a piston rod (2) of a pneumatic cylinder (3) connected by a lower pin (15) to a frame (4). which is provided with an inlet opening (9) and a damper (11) adjoining it connected to the adjusting screw (12). The intermittent cooling mechanism according to claim 1 _, characterized in that the adjusting screw (12) is guided in a plate (16) of the frame (4) to which the manifold (14) of the cooling system is fixed. . - ·