SU939228A2 - Apparatus for making reinforced articles of polymers - Google Patents

Description

(54) DEVICE FOR MANUFACTURING REINFORCED PRODUCTS FROM POLYMERS

one

The invention relates to the processing of plastics, and more specifically to devices for the manufacture of articles with fittings.

According to the main author. St. No. 645840, a device for the manufacture of reinforced polymer products is known, comprising a top plate with a power screw, a bottom plate, connecting posts, an armature retainer and a turntable for accommodating a mold, mounted on the bottom plate and associated with driving its rotation relative to the reinforcement. one.

The disadvantage of this installation is the difficulty of moving components with a significant difference in weights, which reduces the technological capabilities of the installation.

The purpose of the invention is the expansion of technological capabilities by providing mixing of components with different specific weights.

The goal is achieved by the fact that in the device for the manufacture of reinforced products in the bottom plate is fixed

thrust bearing, which is equipped with a rotating platform.

FIG. 1 shows a device; FIG. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. one.

The device contains the top plate 1,

the bottom plate 2 with a rotary platform 3, on which is placed a press-form, including a matrix 4 and a punch 5. Plates I and 2 are connected by posts 6. A mold

10 is enclosed in a steel case 7, closed by a lid 8. A screw 9 (or pneumatic cylinder 10) is installed to move the punch to create pressure in the top plate, the end of which is installed in the lid 8 by means of bearings (two radial and one thrust 11). a step bushing 12 is installed in the bottom plate, on which vibro-bearing 13 is mounted, and a bushing with two radial bearings 14. A rotary platform 3 is mounted on the bearings 13 and 14. , tons ha 16, soy / tinny with a split sleeve 17, wedge 18 with stem

19 with screw. The turntable 3 is made in the form of a pulley associated with the drive of its rotation.

On the uprights 6 a plate 20 is installed for rotating the mold.

The device works as follows.

The matrix 4 with the reinforcement is placed in a steel casing 7, pour liquid and gas in it into the powder components. A punch 5 is inserted into the die from above, plate 1 is inserted under the nut, a cover 8 is installed and the screw 9 is pressurized to secure the die. Then turn on the electric motor, which, through a V-belt transmission (not shown), rotates the turntable 3, and with it the matrix 4 and the upper ring of the vibrating support 13, on which so-called potholes are cut. The lower ring of the vibrating support is fixedly mounted on the stepped sleeve 12. The upper ring of the vibrating support, falling either by a projection or by a bump on the ball, informs the matrix 4 of the vibration in the vertical plane. The armature fastened to the collet chuck 15 with the handle of the rod 19 and the wedge 18 remains stationary. By rotating and vibrating the matrix, the components are moved. When the mixture becomes thick enough, the rotation is stopped. Then, rotating the power screw 9, provide pressure up to 6 kg / cm2. At

if necessary, the cavity of the matrix is evacuated. After a few seconds, the vacuum is turned off, the pressure is removed, the matrix is removed, it is broken and the finished product is released. The resulting product is a cheek.

The proposed design allows to reduce one piece of equipment (a mixer), a workplace (at the mixer), the used production area does not need the area under the mixer), to eliminate material losses that are possible in the prototype (the mixture remains in the mixer on the walls and poured out during transfer from the mixer in the form).

Claims (1)

Invention Formula A device for the manufacture of reinforced polymer products according to ed. St. No. 645840, characterized in that, in order to expand technological capabilities by ensuring the mixing of components with different specific weights, in the lower plate there is fixed a thrust vibrating support on which a turning platform is installed. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 645840, cl. In 29 C 3/02, 1976 (prototype). 8.2 FIG.