SU975436A2 - Bath for making of articles produced by dipping - Google Patents

Description

(54) BATH FOR MAKING PREPARATIONS OF MACHINE PRODUCTS

The invention relates to equipment of rubber industry plants, in particular, to baths for the manufacture of dummy blanks, such as latex gloves. According to the basic author. Saint No. 766884 is a known bath for the manufacture of blanks of dipped articles made with a jacket, a tray, a mixer for circulating latex and with mold holders with a form. Mami. The bath is equipped with a device for moving forms in latex, made in the form of rotating closed chains with stops attached to their links for moving the holders along the guides installed along the longitudinal edges of the bath. The bath is also equipped with an additional agitator installed opposite the main agitator in the gap between the side wall of the bath and limiting the macani area in the direction of movement of the molds by the side wall of the pallet, and movable slats (installed on the side walls of the pallet that define the dipping zone) reciprocating movement in the vertical plane LlJ. In such a way, the presence of two mixers ensures a uniform movement of the surface layer of latex, the position of the slats - the speed and the latter is equal to the speed of form holders with forms, which reduces the possibility of forming latex clots due to its coagulation. However, in a known bath, it is still possible that latex clots may form due to coagulation of the latex upon its contact with the metal parts of the bath. contact with oxygen in the air and with the ingress of non-sided mechanical particles into it. The presence of these clots reduces the thirst of dipped products due to different thickness. This leads to the fact that from time to time it is necessary to filter the entire mass of latex, freeing the bath. In production conditions, this is a very laborious operation that requires the operation of the pine to stop, and the second bath is an integral part, which, in turn, will lead to a decrease in labor productivity. .

The purpose of the invention is to increase the productivity of the manufacturing process of the toe products while ensuring the quality of the latter,

The goal is achieved by the fact that the well-known bath is equipped with removable mesh troughs mounted on movable slats and arranged across the width of the bath, having longitudinal walls of different heights and directional low walls facing the latex movement, with the upper edge of the high wall of each trough above the latex level in bath, and the upper edge of the low wall - at the level of the upper edge of the slat.

FIG. 1 depicts the proposed, bath, general view; in fig. 2 — node 7 in FIG. one..

Bath 1 for making blanks has a jacket 2, which is filled with water to maintain the working temperature of the latex, pan 3 and agitators 4 and 5, installed opposite each other in the gaps between the side walls of bath 1 and the side walls of pan 3, limiting the area of makan along the movement of the forms. On the side: the walls of the pallet 3 are fixed strips 6, installed q by the possibility of reciprocating movement in the vertical plane. In the upper part of the bath, the guides 7 are mounted for the movement of the mold holders 8 with shapes from position A to position. B and a device for moving the forms, made in the form of rotating closed circuits 9c fixed by the stops 1O on their links. I

On the movable slats 6 are mounted removable mesh gutters 11, located across the width of the tub 1. Gutters 11 have longitudinal walls of different heights and are directed by low walls to meet the latex movement. The edge of the high wall of each groove 11 is located above the latex level, and the edge of the low wall is located at the level of the upper edge of the bar 6.

Bath works as follows; Bath 1 is filled with liquid latex to a predetermined level, mixers 4 and 5 are turned on, strips 6 are exposed so that the speed of the surface latex layer over the bath mirror is equal to the speed of movement of the molds.

At position A, using a reloader (not shown), vertically down the form carrier 8 with the forms onto the guides 7. Forwardly closed circuit 9, the stops 1O move the form holder 8 with the forms along the guides 7 of the bath 1 To position B. a layer of latex on the form. At position B, with the help of an overload truck, the form carrier 8 with the forms is lifted vertically upwards and transferred to the next operation. The uniform directional movement of the surface layer of latex is provided by stirrers 4 and 5, the speed of the surface layer of latex is equal to the speed of mold holders 8 with forms, provided by the position of the slats 6, and the latex clots formed are retained by mesh grooves 11. At the same time, the groove 11, located first along the latex movement ensures the retention of all the bunches of latex formed as a result of its coagulation upon contact with the metal parts of the pan and bath, and the second of the grooves 11 is delayed. propelling latex in contact with oxygen and in contact with it extraneous mechanical particles. As gutters 11 are filled with latex clots, they are quickly removed and replaced with new ones without stopping the operation of bath 1. All this creates favorable conditions for the formation of a high-quality film on the surface of the mold.

When resizing the forms, the volume of the extruded latex and the thickness 0 of its surface layer change, which leads to a change in the velocity of the latter.

To obtain high quality top-quality products at a certain optimal rotational speed of the agitators, selected experimentally before BbUiycKia starts a commercial batch of products, the latex flow rate is adjusted with the help of vertical bars 6, which raise upwards and thus decrease the value (5, and for decreasing speed the slats are lowered down, increasing the surface thickness of the latex layer. Simultaneously with the slats, the grooves 11 move up or down so that the latex clots remain in the latter and do not fall outside their limits. In addition, the use of reticulated} | strains allows for continuous filtration of latex, which has a positive effect on the quality of the products, and also allows an increase in the cycle of the bath without filtering the entire amount of latex contained in it, which, in turn, will lead to an increase in labor productivity was invented by the FORM of the Bath for the production of blanks of dipped products according to the author, St. No. 766884, characterized in that, in order to increase the productivity of about 9 tons 36 processes of the manufacturing of dipped products while ensuring the quality of the latter bath mounted on movable slats and spaced across the width of the bath are removable mesh troughs with longitudinal walls of different heights and directed low walls to meet latex movement, with the upper wall of the high wall of each trough located in the latex level in the bath and the upper edge of the low wall is at the top edges of a level. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 766884, cl. In 29 N 3/04, 1978 (Protopsch). ± ZZI1

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Claims (1)

Claim . . '* · Bath for the manufacture of blanks dipped products by ed. St. No. 766884, characterized in that, in order to increase productivity 975436 6 process for making dipped products while ensuring the quality of the latter, the bath is equipped with removable mesh troughs mounted on movable slats and located across the width of the bathtub, having longitudinal walls of different heights and low walls directed towards the latex movement, the upper [high wall of each gutter is located above the level latex in the bath, and the upper edge of the low wall is at the level of the upper edge of the bar.