SU1320013A1 - Arrangement for securing die-casting mould on die-casting machine - Google Patents

Abstract

The invention relates to a foundry and can be used to install and remove molds on an injection molding machine. The aim of the invention is to reduce the size of the device. The device contains a holder 1, fixedly fixed (L

Description

Lenny on the plate dimensions of the device. The device comprises a holder 1 fixedly mounted on the machine plate, and a wedge 2 placed therein, associated with the hydraulic cylinder 6, and. clamp 3 in the form of one-arm lever. When the wedge is moved, the latter, with the spring-loaded pushers 4, acts on the clamp 3 and moves it to its extreme position until it stops against the trunnions in the grooves that are made in the cage.

one

The invention relates to foundry and can be used to install and remove molds on an injection molding machine.

The aim of the invention is to reduce the size of the device.

Fig. 1 shows the structure of the device in the initial position, a longitudinal section; in fig. 2 - the same in the working position; in fig. 3 is a section A-A in FIG. 2; FIG. 4 is a section BB in FIG. 2,

The device contains a holder 1, a wedge 2 installed therein, a clamp 3, pushers 4 located in a wedge and cup springs 5, a hydraulic unit 6 for moving wedge 2 and position sensors 7. The hydraulic cylinder 6 contains the working 8 and signal 9 rods. Position 10 denotes the object to be fixed, for example, an injection mold package. The yoke 1 is fixedly mounted in an injection molding machine,

The device works as follows

To fix the replacement package after its installation, the working rod 8 of the hydraulic cylinder 6, when fed into the cavity of the last working fluid, moves forward, pushes the wedge 2 in the initial position, which in turn acts with spring-loaded pushers 4 on the clamp 3 and moves it to the extreme extended position against the stop pins, and to the end surface of the grooves b, made in the walls of the cage 1, With further movement forward, the wedge 2, compressing the spring 5, slides the wedge over the further movement Tew with the corresponding surface of the pressing 3 d by turning on power to the trunnions prizhimaemm contact with the object 10, the bending force is sensed by the wedge guide surfaces ferrule 1, which is adapted to be closed. The compactness of the device allows it to be used for fastening small-sized forms, 4 sludge.

with the corresponding surface with Shma 3, turning it on the pins a to force contact with the pressing surface. To increase the reliability of fastening by eliminating self-jamming and reducing the dimensions of the hydraulic cylinder 6, the bevel angle from the wedge surfaces cad is made within the friction angle of these

surfaces, t, e, 6-7 °. To detach the object 10, the working rod 8 of the hydraulic cylinder 6, which is engaged with the wedge 2, is moved in the opposite direction. In this wedge 2,

moving after the working rod 8, it comes out of the interaction with its wedge surface with the corresponding surface d of the presser 3, which releases the fixed object

10, At the moment the wedge begins to move, 2 pushers 4 with springs 5 hold the clamp in place. Upon further movement, the wedge 2 engages with the ledge e with the clamp 3 and carries away

him for a withdrawal from the clamping area. For automatic control of the clamping device, the hydraulic cylinder 6 is provided with a signal rod 9 for interacting with sensors 7

position

In the proposed device, the zone of force contact with the fixed object and the zone of interaction of the wedge with the clamp are combined, and the latter transfers the entire normal load to the wedge. In this case, the force from the bend of the wedge is perceived by the guiding surfaces of the closed cage. By optimizing the distribution of forces, the dimensions are reduced, which

permits the use of the device for securing both large and small objects. In addition, the use of the device makes it possible to reduce the size and form block, the device cages are embedded in the body, it is possible to install the form block on the machine to be poured under pressure without dismantling its drawstring columns, conditions are created to automate the process of replacing replacement bags.

134

Claims (1)

Invention Formula A device for fastening a mold on an injection molding machine, comprising a guide sleeve in which a clamp and a cooperating wedge with spring-loaded push rods are placed, and a hydraulic cylinder for moving the wedge, characterized in that, in order to reduce overall dimensions, the sleeve in cross section closed, and the clamp has the shape of a single-arm lever. .BUT R Fiyo.2 Editor E. Sligan Compiled by A, Kuznetsova Tehred N.Glushchenko Proofreader V. But ha Order 2559/12 Circulation 740 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, W-ZZ, Raushsk nab 4/5 Production and printing company, Uzhgorod, st. Project, 4