SU1217909A1 - Press mould for manufacturing investement patterns - Google Patents

Description

one.

The invention relates to foundry 1 / production and can be used on automatic machines for the manufacture of model units in the production of casting 1M models, as well as in the production of plastic products and parts made of ceramics.

The aim of the invention is to expand technological capabilities and increase reliability of operation,

Figure 1 shows a multi-cavity (three-link) mold, a plan; figure 2 - section aa in figure 1 in figure 3 - section bb in figure 2; figure 4 - the position of the mold at its initial connector.

The mold consists of a support

plate 1, movable half-form 2, fixed poruform 3, pressure plate 4, ejector plate 5, ejector clamp plate 6, base and posts are not shown).

The movable half-form comprises a plate 7 of the pushers, a plate 8 of the pressing of the pushers, equal-height pushers 9 with vent holes 10 and a cylindrical section 11 of the pusher face, counter-pushers 12, compression springs 13.

The fixed half-mold contains rods, tubular ejector. - body 15, counter pushers 16.

Spring-loaded plate 7 pushers of the movable half-form installed with a given stroke S.

The mold works as follows.

After the mold is filled with the model composition, the mold connector begins, and the razors of varying heights 9 under the action of the springs 13 hold the molded models in the fixed mold half and remove it from the mold cavity of the movable mold half by 5. At the beginning of the model with protruding surfaces of the movable half-form 2 prevents

Creation of a vacuum in deep cavities due to the connection of these cavities with the atmosphere through vent 10, made on the side surfaces of the pushers 9.

The removal of models from the fixed half-form 3 is carried out at the ends of opening the half-forms by means of tubular pushers 15. The released parts of the models fall into the water conveyor.

When the half-molds are closed, the counter-pushers 12 and 16 abut against the plane of the mold connector, pushing the 1pc plates 5 and 6, 7 and 8 of the fixed and movable half-forms 2 and 3 with the pushers 9 and 15 to their initial position while cylindrical 1I of the end face. the pusher closes the opening in the mold cavity from the penetration of the model mass onto the vent flats 10.,

The mold is ready for subsequent pressing.

The mold allows to obtain a number of positive effects, namely: it expands the range of high-rise products on high-performance automatic lines with a closed mold height of 240 mm, while removing (squeezing) the model when opening from the mobile half-mold, which is an essential condition for the operation of the molds installed on the Model 653 carousel automats; ventilation of the working cavities of the mold is provided to eliminate vacuum; improve-. subject to safety precautions, since the operator does not need to manually remove the model that has remained randomly in the movable half-form; increases with operational reliability and can be used in automatic machines for the manufacture of model units.

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Editor T. Parfenova

Compiled by V.Tarasov

Tehred L. Mikesh Proofreader L. Pilipenko

Order 1084/32 Circulation 757 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, Proektna St., 4

Fig

Claims (1)

PRESS FORM FOR MANUFACTURING: NOW OF CUSTOMIZED MODELS, containing a movable and fixed half-mold with cavities making up the model, a spring-loaded plate of pushers with pushers, characterized in that, in order to expand technological capabilities and increase the reliability of operation, longitudinal vents are made on the side surface of each pusher flats, the length of which on one side is limited by the cylindrical section of the end of the pusher. £ .1217909