SU1597278A1 - Casting mould for producing polymeric articles with plastic reinforcement - Google Patents

Abstract

The invention relates to the field of plastics processing and can be used for the manufacture of polymeric products with plate valves. The purpose of the invention is to increase the reliability of the form in operation. For this, it is provided with an additional retainer retainer against lateral displacement. The latch is made in the form of a protrusion with a groove (P) in the insert 12 of the fixed half of the form 1. P corresponds to the protrusion of the insert 15 of the movable half of the form 2. The catchers 5 are made with a diameter that allows the fittings 6 to freely hang. In half-molds 1 and 2 there are two sockets for entry of catchers 5 and retainer 9 into them. After the reinforcement has been attached to catchers 5, the mold begins to close. When this latch 9 enters the hole of the valve. The latter is lifted and placed coaxially between catchers 5. It is fixed by latch 9 and P. 5 Il.

Description

The invention relates to the processing of plastics and can be used for the manufacture of polymeric products with plate valves.

The purpose of the invention is to increase the reliability of the form at work.

Figure 1 shows the cast form of the section; figure 2 is fixed half-form; in fig. Z-fixed and under. vi: on the half-form at the moment of interception of the reinforcement from catchers to the clamp, section BB; 4 - the same, at the moment of closing the form and the final transition of the reinforcement from the catcher to the retainer, section B – B in FIG. 5 - section AA in FIG.

The casting mold contains a fixed 1 and a movable 2 half-mold with inserts 3 and 4. In the fixed half-mold 1 perpendicular to the plane of the shape's connector, the rod hooks 5 are located. fittings 6, the diameter of which allows them to freely pass through the openings 7 of the fittings 6, In the movable mold 2, slots 8 are made for inserting catchers 5 of the fittings 6 into them. In the rolling mold 2, perpendicular to the plane of the shape connector, there is a rod lock 9 of the fittings 6, diameter which allows precisely fixing in the hole 10 of the reinforcement 6. In the fixed mold 1, a slot 11 is made for inserting the fixture 9 of the reinforcement 6 into it. In the fixed mold 1 there is an additional fixture clamp from lateral displacement in the form of an insert 12 with an end protrusion on which a groove 13 with bevels 14 is made, and an additional insert 15 with a protrusion 16 repeating the shape of the groove 13 is mounted on the movable mold 2. The mold has an ejector system with ejector plates 17 fixed with an E plate 18 and a tail - Vick 19.

The form works as follows.

In the open position of the mold, the armature 6 with the opening 7 is hung on the safety device 5 and additionally fixes in the groove 13 from the lateral displacement

Since the axes of the retainer 9 and the catcher 5 are located. At a distance equal to the center distance of the holes in the reinforcement 6, respectively, for the retainer - hole 10 and for catching - ring 7 - the opening 7, the clamp 9 enters into the hole 10 in the fitting 6, starts at

0 d Q j

Q

five

five

raise the armature and finally installs the hole 7 coaxially to the catcher 5. The armature 6 is free from the catcher 5 and only attached to the retainer 9 and to the groove 13.

After complete closure of the mold, plastic is injected. After a certain time, the mold opens and the product 20 with the reinforcement 6 remains on the movable part 2 of the form, and then collides with the pushers 17 driven from the fixed support of the machine through the shank 19 and the plate 18. After that, the working cycle is repeated.

Inserts 12 and 3 can be filled in as one piece, i.e. the protrusion with the groove 13 could be made directly on the insert 3, and the insert 15 with the protrusion 16 can be made in one piece with the insert 4. The inserts 12 and 15 are made as separate parts only for the purpose of increasing the form maintainability in case of breakage or wear .

Claims (1)

The proposed technical solution provides for the installation of plate reinforcement on the fixed half-form, further re-hanging and fixation of the reinforcement on the movable floor form, eliminating the distortion of the reinforcement and., Its crushing. Invention Formula A mold for the manufacture of polymer products with lamellar reinforcement, containing fixed and movable half-molds with inserts, means for fixing the reinforcement in the form of perpendicular to the plane of the connector of the shape of the rod catchers installed on the fixed half-shape, and the core lock installed on the movable half-form, that, in order to increase the reliability of the form in operation, it is provided with an additional retainer retainer from lateral displacement, made in the form of an end protrusion ohm on the inset of the fixed half-form and the corresponding groove of the protrusion on the inset of the movable half-form, catchers are made with a diameter that allows for free hanging of the reinforcement, and the core lock is made with a diameter that provides accurate fixation of the armature, and retainer. Phage. 2 Bb FIG. FIG. five