SU1735033A1 - Mould - Google Patents

Abstract

Use: for the manufacture of complex products with long side nozzles lying at an angle to the vertical plane of the mold connector, to increase the reliability of the form. The invention: the form contains a fixed plate 1, provided with a hinge 13, fixed on it, with two grooves 14 and 15, one of which (groove 15) interacts with the slider 8 and the other (groove 14) with the lever 17. which is hinged on movable plate 4. 4 Il.

Description

The invention relates to the processing of plastics into products and can be used for the manufacture of complex products with long side nozzles lying at an angle to the vertical plane of the shape connector.

A casting mold for a thermoplastamate automat is known, containing a fixed semi-matrix with a sloping column, a movable semi-matrix with a slider with a forming sign interacting with the sloping column and an ejector.

A casting mold for the manufacture of long hollow plastic products is also known, containing fixed and movable semi-matrices, forming marks, the ends hinged in brackets fixed rigidly on the movable semi-matrix, and the removal mechanism, made in the form of two levers parallel to the lateral surfaces of semi-matrix, rigidly interconnected by one end of the tie, passing through the slots of the brackets mounted on the fixed semi-matrix, and the other ends connected by the colliding plate Anka mounted on the shaped sign

A disadvantage of the known form is that its use for the manufacture of complex products with long side nozzles lying at an angle to the vertical plane of the shape connector requires the use of injection molding machines with a large stroke of the movable plate (i.e., the use of injection molding machines of greater power than that). need, the outcome of the injection dose).

In addition, the use of a push-off bar may cause deformation of the end of the nozzle, and with a sufficiently branched surface of the main part of a complex product, when separating the product from the half-matrix, by turning the sign that forms the hole in the nozzle, deformation or descendant of the nozzle may occur.

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WITH

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

Figure 1 shows the form; FIG. 2 is a close-up form, side view; FIG. in fig. 3 — open form, side view; in fig. 4 shows section A-A in FIG. one.

The casting mold for complex products contains a fixed plate 1 with a sprue bushing 2 and a half matrix 3, a movable plate 4 with a half matrix 5, a punch b and a sign 7 fixed in the slider 8, the Slider 8 moves along the bevel 9 of the movable plate 4, in the slots of which the keys are placed 10, rigidly connected to the slider 8. A pusher 11 passes through the movable plate 4, which is spring-loaded away from the product. The fixed plate is hinged with fingers 12 and parallel to the lateral edges of the form of the wings 13 with slots 14 and 15. A finger 16 passes through the groove 14, which connects the levers 17, the other end of which is hinged by the fingers 18 to the movable plate 4. Through the groove 15 axis 19 passes, which are rigidly fixed in the slider 8. The semi-matrix, the punch and the sign form the cavity in which the product is formed.

Casting form works as follows.

A molten plastic is injected into the closed mold through the sprue bushing 2. After technological exposure, the form is opened. Movable part of the form,

Claims (1)

including the movable plate 4, the semi-matrix 5, the punch 6, the sign 7 and the slider 8, moves in the direction of the stop of the injection molding machine (not shown). The levers 17 carry their finger 16, which interacts with the groove 14 of the wings 13. At the same time, the rocker, turning around its finger 12, rises and the grooves 15 interacts with the axes 19 of the sliders 8. As a result of this interaction, the slide 8 rises along the bevel 9 of the movable plate 4 , remove the sign 7 from the nozzle of the product. At the moment of complete exit of the sign 7 from the product nozzle, the pusher 11 hits the stop of the injection molding machine and drops the product from the punch 6. When the mold closes under the influence of the groove 15 on the axis 19, the slider 8 with the sign 7 is reset to its original position, then the semi-matrix closes, then the repeat cycle is happening again. Formula of the Injection Molding form containing fixed and movable plates with semi-matrices and a sign, a mechanism for extracting signs in the form of a lever, the end of which is pivotally connected to one of the plates, and a slider, characterized in that, in order to increase the reliability of the form, the lever is hinged The fixed plate is provided with a two-slot slide, hinged on it, in one of which is placed a finger, which is connected with the second end of the lever, and in the other axis, which is connected with the slide. ate -eleven TO four eight FIG. four