SU1211077A1 - Casting machine mould jointing mechanical gear - Google Patents

Description

one

This invention relates to mechanical engineering and can be used in injection molding machines for plastics.

The purpose of the invention is to improve the quality of the products and improve the operating conditions of the mechanism by ensuring uniform expansion of the columns.

Fig, 1 shows the mechanism 10 closure forms of the injection molding machine, a longitudinal section; figure 2 - section aa in Fig, 1,

The closure mechanism of the casting manshna consists of the front 1 and the rear 15 of it 2 plates connected by columns 3, an additional plate 4 is attached to the back plate 2, and a movable plate 5 is installed on the columns 3. The levers 6 of the lever system 20 are hinged to the additional plate 4 , and levers 7 - with a movable plate 5, Cranks 8 of the lever system connected to the crosshead 9, which is connected to the rod 10 of the hydraulic cylinder 11, 11, the Traverse 9 is installed on the rolling pin 12, fixed between the brackets 13 and the additional plate 4. The latter is connected by bolts 14 from the back plate contacts 30 and commutes with her spherical annular surfaces C, mold 15 comprising two mold halves, is fixed on the front and the movable plates 5, Columns 3 connected to the rear plate 35 with nuts 16,

The closure mechanism of the injection molding machine works in the following way.

When pressure is applied to the piston cavity of the hydraulic cylinder 11 of the yoke 9 40

12110772

 moves along the rolling pins 12 with the stem 10,: The levers 6 and 7 are straightened by a connecting rod 8 and the movable plate 5 moves to the front plate 1, the Form 15 closes 5 seconds, and with further unfolding of the levers 6 and 7, a locking force is created due to the elastic deformations of the links of the mechanism. Under the action of p 1 force, the additional plate 4 is self-aligning along an annular spherical surface and, or the back plate 2 changes its

position, providing uniform stretching of the columns 3, compensating for the dimensional mismatch of the columns 3 and the lever system, inaccuracy of the assembly of the closing mechanism, parcel of the support surfaces of the mold, uneven wear of the hinged joints of the lever system during operation. Ensuring uniform stretching of the columns 3 prevents melting Grata on products, which increases their quality.

When pressure is applied to the rod, the cavity of the hydraulic cylinder 11 of the yoke 9 moves along the rolling pins 12 with the rod 10 towards the rear plate 2. The connecting rods 8 of the fold, pull levers 6 and 7 and the movable plate 5 moves along the columns 3 backwards. When the mold 15 is closed, the back 2 and the additional 4 plates are held in the connected position by bolts 14,

The proposed design will improve the quality of molded products and improve the operating conditions of the locking mechanism and the injection mold.

position, providing uniform stretching of the columns 3, compensating for the dimensional mismatch of the columns 3 and the lever system, inaccuracy of the assembly of the closing mechanism, parcel of the support surfaces of the mold, uneven wear of the hinged joints of the lever system during operation. Ensuring uniform stretching of the columns 3 prevents melting Grata on products, which increases their quality.

When pressure is applied to the rod, the cavity of the hydraulic cylinder 11 of the yoke 9 moves along the rolling pins 12 with the rod 10 towards the rear plate 2. The connecting rods 8 of the fold, pull levers 6 and 7 and the movable plate 5 moves along the columns 3 backwards. When the mold 15 is closed, the back 2 and the additional 4 plates are held in the connected position by bolts 14,

The proposed design will improve the quality of molded products and improve the operating conditions of the locking mechanism and the injection mold.

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Circulation 640

Order 589/20 Subscription

Branch Patent,

g, Uzhgorod, Proektna St., 4

Claims (1)

MECHANISM FOR CLOSING THE FORMS OF THE INJECTING MACHINE, comprising front and rear plates connected by columns, on which a movable plate connected to the lever system is installed, which consists in that, in order to improve product quality and improve the operating conditions of the mechanism by ensuring uniform stretching columns, the mechanism is equipped with an additional plate connected to the rear plate, pivotally connected to the lever system and mounted with the possibility of contacting with the rear plate for their mutual movement on a spherical Kim surfaces, which are formed on the back and the additional plates. Figure 1