SU1581587A1 - Casting mould for making polymeric articles - Google Patents

Abstract

The invention relates to injection molds for the manufacture of polymeric products. The purpose of the invention is to increase the reliability of the mold in the manufacture of long products with side holes. For this, the form is provided with an additional plate 11 located on the base plate 4 and a locking mechanism with a latch for connecting it to the base plate, the clip is made in the form of a ring 6 with radial holes for the slider shanks, the gating plate 2 is equipped with heating columns on which the ring 6 spring-mounted relative to it and an additional plate 11 relative to the ring, the slide blocks are provided with latch ejectors, and the drive of each slide is made in the form of a pair of earrings connected respectively to the sprue and to olnitelnoy plates. When the mold is opened, the sliders move in the transverse direction with earrings. After the characters are displayed, the throwers act on the latches, as a result of which the movable and stationary half-forms are released. In the course of further disclosure, the product is removed from the central mark 18. 4 sludge.

Description

The invention relates to equipment for processing plastics and can be used for the manufacture of long products.

The purpose of the invention is to increase the reliability of the operation of the mold in the manufacture of long products with side holes.

FIG. 0I shows the casting form tg in section; on - section A-A in FIG. one; in FIG. 3, a product; fig 4 - section bb In figoZ

The casting mold comprises a fixed half-form 1 with a gutter plate 15 2, a movable half-form 3 including a base plate 4 rigidly connected with the base 5, sliders 7 with signs 8 arranged in the holder 6, the slide gear 9 9, made in the form of a pair of 20 earrings, connected, respectively, with an internal 2 and additional plates, an ejector system with pushers 10, an additional plate 11, a locking mechanism 12 with a latch 13 25 for connecting it to the base plate 4, the sprue plate 2 is equipped with guide columns 14, on which are located spring-loaded and the spring 35 relative to the holder 6 and relative to the holder is an additional plate 11, the sliders are provided with conical surfaces that interact with the conical projections of the sliders, ensuring a tight closure of the sliders 7o. A central sign is fixed to the base plate.

Casting form works as follows

After filling the cavity-forming 40, holding out under pressure and cooling, the mold is opened with the Movable half-mold 3 with the base 5 and the base plate 4 and connected through the locking mechanism 12 and the latch 13 with an additional 45 additional plate from the fixed half-mold 1 and actuates the drives 9 sliders 7, which, coming out of the conic holes of the additional 11 and gating 2 plates 50, remove the lateral forming marks 8 from the casting 19 located on the central mark 180 At the time the marks 8 exit from the casting, the resetter 16 acts on the latch 13, drop them off the additional plate and thereby disconnect the movable half-form from the fixed one, and then the sliders 7 are consumed by equivalent springs 15, which hold the sliders 7 in the opened form, preventing them from spontaneously moving. the products, the sliders 7 move strictly parallel to the longitudinal axis of the product, which is ensured by the equivalence of the earrings of the actuator 9, the springs 15 and the shanks 17, which play the role of a centering element. The radial stroke of the sliders 7 is limited by the inner cylinder of the holder 60.

At the end of the stroke of the movable part of the mold 3, the thrust block of the injection molding machine acts on the pushers 10, which eject the product from the center mark 180. Next, the shape closes and the cycle repeats with

Claims (1)

Invention Formula Casting mold for the manufacture of polymer products, containing a fixed half-form with a gating plate, a movable half-form including a base plate rigidly connected to the base, sliders with signs located in the cage, a drive of the sliders and an ejector system, characterized in that, in order to improve reliability the work of the mold and in the manufacture of long products with side holes, it is equipped with an additional plate located on the base plate and a locking mechanism with a latch for connecting it to the base plate, The yma is made in the form of a ring with radial holes for the liners of the sliders, while the gating plate is equipped with guide columns, on which the ring is spring-loaded relative to it and an additional plate relative to the ring, the sliders are provided with snap-release devices, and the drive of each slide is a pair of earrings connected respectively with gating and additional plates „ 1581587 Aa u // 7 /four FIG. 2 Fy Fig.Z