SU1514632A1 - Casting mould for manufacturing polymeric articles - Google Patents

Description

The invention relates to injection molds for the manufacture of polymeric products. The purpose of the invention is to improve the reliability of removal of light products. For this, the means for moving the sliders is made in the form of a strip 3 with copy grooves, each of which has two sections 4, 5 for withdrawing the slide connected by section 6 for limited return movement of the sliders. When opening the form, the slide blocks are divorced due to the sections 4, and then section 6 provides for a limited return movement of the slide blocks, due to which the products stuck on the design elements collide with signs. 4 il.

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1514632 A1

1514632

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The invention relates to devices for

manufacturing parts from plastics, in particular to injection molds for making

lightweight hollow parts such as coils.

The purpose of the invention is to improve the reliability of removal of light products.

FIG. 1 shows the form in a closed position; in fig. 2 - the same, at the time of removal of products from the signs; in fig. 3 - bar with copy slots; in fig. 4 - product.

Injection mold contains a stationary half-form with design elements 1 and means for moving the sliders 2, which is made in the form of a strip 3 with copy grooves, each of which has two sections 4 and 5 for removing the slide, connected by section 6 for limited return movement of the slide 2.

The movable half-form includes a base plate 7, a plate 8 with the decorating elements 9 with an insert 10 and sliders 2 mounted on the plate 8 with signs 11. The plate 8 with the decorating elements is installed with limited movement relative to the base plate 7 on which the insert 10 is fixed.

On the fixed half-form, spring-loaded grippers 12 are fixed, and the base plate is made with cams 13 for retracting the grippers 13 and is connected by rods 14 to the plate 8.

Such a constructive solution helps to prevent sticking of light products on the mold elements due to contact with the latest lubricants.

The form works as follows.

A polymer is injected into the closed mold (Fig. 1) with iodine pressure and, after a suitable hold, the mold is opened. When the form is opened, the grippers 13 retain in the closed state the form elements: the fixed half-form and the plate 8 s

decorating elements. At the beginning of the opening stroke, the first connector forms along the plane between the base plate 7 and the plate 8. In the process of increasing the connector, the inserts 10 come out of contact with the decoration elements 9. The cams 13 rotate the grippers 12, freeing the plate 8, and the thrust 14, selecting the gap , the plate 8 is moved, as a result of which a second connector is formed, while the sliders are divorced by the strip 3. After passing section 4, the sliders, due to section 6, perform a limited return movement, so that in case of sticking on the design elements 9 products 15

15 last faced signs 11.

Upon further disclosure of the form, the crawlers are divorced into sections 5 of the copy slots.

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Claims (1)

Formula Injection mold for the manufacture of polymer products, containing a fixed half-form with setting elements and means for moving sliders, a movable half-form including a base plate, a plate with setting elements and with an insert and mounted on a plate sliders with signs, different in that with the aim of raising reliability of removal of light products, means for moving The 30 sliders are made in the form of a bar with copy grooves, each of which has two sections for retracting the slide, connected by a section for limited return movement of the slide, while the plate with the mounting elements of the device with the possibility of limited movement relative to the base plate on which the insert is fixed. Ζ4ι g> 2 <rig.1 7 1514632 '/////// LUL φυ? Α