SU1256978A1 - Mould for making dipped rubber articles - Google Patents

Description

2. The form according to claim 1, is distinguished by the fact that the second elastic element and the locking protrusion of the first element are made in the form of keys, which are installed perpendicular to one another by their longitudinal axes.

The invention relates to equipment of rubber industry plants, in particular, to the design of molds for the manufacture of rubber dipped articles, such as gloves, on a mold holder.

The closest to the invention is the form for the manufacture of rolled rubber products, comprising a molded forming body with a mounting hole at its base and means for attaching the body to the mold holder, which includes elastic elements and a pressing element for pressing the latter to the outer and inner surfaces of the base. forms.

However, the device cannot be used to fasten molds in the manufacture of thick-walled gloves, which require multiple rotation of the mold holder with the forms in both directions in various technological operations. The fastening of the molds is quickly loosened, the edge of the hole in the base of the porcelain molds is chipped, which means that the fastener is too loose. Insufficient reliable fastening leads to the fact that porcelain forms begin to move and come into contact with each other, which is completely unacceptable when raw forms are on the forms, as this leads to the marriage of finished products and the battle of forms. In addition, water begins to flow into the internal cavity of the mold (fadeto.r), which leads to the appearance of porcelain molds when the drying chamber passes through, which reduces their lifespan and also leads to marriage of ready-made products. All this sn1-1zhat reliability of the forms.

The aim of the invention is to improve the reliability of the forms while ensuring the quality of products.

3. The shape according to n.l, tl and ch and y with the fact that the end portion of the locking protrusion is made with an initial bevel around its perimeter.

4. Form pop. 1, differing by Yu-D; and with the fact that the annular protrusions are made in cross section

triangular shape.

The goal is achieved in that in the form comprising a hollow forming body with an inlet opening at its base and means for securing the body to the mold holder, which includes two elastic elements and a pressing element to press the latter to the outer and inner surfaces of the mold base, one of the elastic elements with at least two centering and annular protrusions for interacting with the bilge of the false base surface and with a central locking protrusion for entering the base hole, and the locking protrusion It has a groove at its end for accommodating the second of the elastic elements and with centering pins.

At the same time, the second of the elastic elements I f1p: the circumference, the protrusion of the first of the elements, is made in the form of keys, installed perpendicular to each other by their longitudinal axes,

The front portion of the flashing protrusion is made with a lead-in bevel around its perimeter.

 In addition, the annular protrusions are made in the cross section of a triangular shape.

.1 shows the shape, general appearance; in Fig. 2, the same view in the plan of Fig. 3 is a section A-A to Fig, 1.

The form consists of a hollow molding body 1 with a feed hole 2 at its base and means for securing the housing 1 to the form carrier 3. The latter includes two elastic elements 3 and 4 and a strap element in the form of a metal plate 5 and the fastening bolt 6 with the nut 7. The clamping element is intended to press the elastic elements against the inner and outer surfaces of the base and the form.

3

The resilient element 4 is provided with at least two concentric annular protrusions in for engagement with the outer surface of the base and with a central locking protrusion to enter the opening of the base. The locking protrusion is made with a groove at its end for accommodating the second of elastic elements and with centering pins 8.

In this case, the elastic element 3 and the locking protrusion from the elastic element 4 are made in the form of pins mounted perpendicular to each other with their longitudinal axes.

The front portion of the locking protrusion is made with a lead-in bevel around its perimeter.

In addition, the annular projections in made in the cross section of a triangular shape.

The device works as follows.

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Before starting, the form is attached to the form holder. For this purpose, a pressure element is inserted into the hole 2 in the base of the form 1 together with the elastic element 4 and the protrusion c.

Then, the clamping element is turned in such a way that the plate 5 fits into the groove of the protrusion c and tighten the nut 7 until

the elastic element 4 does not come into contact with the outer surface of the base of the form 1, and the elastic element does not come into contact with the inner surface of the base Q of the form 1.

The form fastened in this way is moved on the form holder to various technological operations, obtaining a dipped product, for example, gloves.

The proposed construction provides higher reliability of the fastening of the form and sealing of its inner surface, which allows to prevent the products from being damaged due to

cleavage forms.

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Editor A. Gulko

Compiled by I. Buslaeva

Tehred L. Serdyukova Proofreader A.Zimokosov

Order 4872/14. Circulation 640 Subscription VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, st. Project, 4

Claims (4)

1. FORM FOR MANUFACTURE A WOUNDED RUBBER PRODUCTS containing a hollow forming body with a back hole in its base and means for fastening the body to the mold holder, two elastic elements and a clamping element for pressing the latter to the outer and inner surfaces of the mold base, which can be cured in order to to increase reliability in work while ensuring product quality, the first elastic element is made with at least two annular protrusions for interacting with the outer surface of the base and with a central locking protrusion for approach into the hole of the base, and the locking protrusion is made with a groove at its end to accommodate the second elastic element and with centering pins. FIG. 1 2. The shape according to π.1, characterized in that the second elastic Element and the fixing protrusion of the first element are made in the form of dowels installed perpendicular to one another with their longitudinal axes. 3. The mold according to claim 1, characterized in that the end section of the locking protrusion is made with a bevel along its perimeter. 4. The shape of pop. 1, ’characterized by the fact that the annular protrusions are made in a cross-section • of a triangular shape.