SU1500501A1 - Arrangement for producing unloading polymeric articles provided with threaded center hole - Google Patents

Abstract

The invention relates to the processing of polymeric materials and is used in a rotary conveyor line for the manufacture of articles with internal concentric threads and external undercuts using an injection molding method. The goal is to improve the performance of the mold installed on the rotor-conveyor line by automating the process of unloading the product. For this, both half-molds 4 are provided with rollers 7. A sleeve 11 is installed on the mold body with the possibility of contact with a rotary conveyor line. 2 Il.

Description

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The invention relates to the processing of polymeric materials and is used in a rotary conveyor line for the manufacture of articles with internal concentric threads and external undercuts by injection molding.

The goal of the invention is to increase the productivity of the injection mold, installed on the rotor-conveyor line, by automating the process: unloading the product.

Figure 1 shows the device in the closed position, view, section; Figure 2 - the same, in an ideal position.

A device for the production and unloading of polymer articles with a thread contains a mold, including a housing 1, through which a threaded mark 2 with gear i3 passes. The product is formed along with a rezbovy mark 2 two half-shapes 4 fixed in the transverse direction in the holder 5 of the half-forms, which in turn is movable in the longitudinal direction relative to the housing 1 and equipped with springs 6. On each half-form there are rollers 7, with the help of which the movement of the molds takes place by means of a copier 8. When screwing the threaded sign with the flange 9, it rests against the sleeve 10. Dp of fixing the mold in the technological rotor are the sleeves 11. The mechanism of double nchivani includes a sector gear 12 for pre-fastening articles and rubberized sector 13 for final fastening. The knife 14 serves to cut the garbage (Fig. 2).

The device works as follows.

After filling the plastic mass and cooling the mold

one

 gets into the unloading rotor, where gear 3 of the threaded mark 2 engages with the toothed sector 12 fixed in the rotor. Since the threaded mark has a rigid stop in the sleeve 10, when screwing, a spring-loaded holder 5 extends half-molds with half-shapes 4, which are closed by sticking to the product. So that after opening the half-molds, the product does not adhere to one of them, it remains partially screwed on the threaded mark 2. When the half-shapes are fully opened, the threaded mark 2 is raised all the way along with the partially-screwed piece. After the spruce cuts, the product engages with the rubberized sector 13, which is simultaneously, as well as the toothed sector 12, an element of the rotor-conveyor line, and the product is finally screwed off from the mark.

Claims (2)

1. A device for the manufacture and unloading of polymer products with a threaded central hole containing an injection mold, including a housing, two half-molds with a moving mechanism and a threaded mark, as well as a screwing mechanism, which is designed to increase productivity a mold form installed on a rotor conveyor line by automating the unloading of products, both half-molds provided with rollers to open half-molds. 2. A device according to Claim 1, characterized in that a sleeve is installed on the body of the injection mold with the possibility of contact with a rotary conveyor line.