CS197382B1 - Facility for removal of the shaped castings on the injection presses - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for the removal of shaped castings on injection molding machines

is arranged on a horizontal guide post.

Devices are known which, with the aid of pliers or manipulators, and electronic control components allow a relatively short sequence of removal from the mold face.

Especially in the field of die-casting, it has already been proposed to provide an adjustable clamping device for die-casting machines for die casting which, in the manner of a crane, remove castings between the upper beams and transport them in a rotary motion about the vertical axis 1.

of the machine. ·

Another known solution consists in the horizontal take-off movement of a rigid vertical arm with a grab device which occurs across the closing direction of the pressurized machine.

Said devices condition a high implementation and maintenance cost, a long die casting path and an increase in the space requirement of many machines. When | use on injection molding machines for processing plastics would significantly increase the technologically necessary cyclic times due to the length of the conveying path, including the movement of removal from the mold, and would prevent a rapid collection sequence.

It is an object of the present invention to provide a simple device for removing arbitrarily shaped castings from horizontally molded injection molding machines with a rapid withdrawal sequence from the mold face, which is feasible with minimal means and operates reliably in operation.

The equipment will manage my injection process enough to allow the operation of several

197 382

197 382 machines and later ongoing automation.

SUMMARY OF THE INVENTION It is an object of the present invention to transport the injection molded parts after they have been completely removed from the mold using gravity and additional forces applied cyclically from the mold area, and to provide the necessary equipment to determine as few components and switching functions as changeable. powerful and small in size.

The object is solved in the device according to the invention by rotating the pivot arm with at least two angularly arranged parts around the lower guide column of the injection molding machine, and a signal transmitter for reaching the catching position of the pivot arm. and a further signal transmitter in cooperation with the cam when the swivel arm has been deflected, and a pneumatic cylinder is provided to drive the device.

The solution according to the invention ensures a wide field of applicability in terms of the type of injection molding and the shape of the casting at low cost. It allows short cycling times and does not prevent access to the face or form. Due to the small number of components and switching logic functions, the device according to the invention is suitable for robust injection molding operation.

The principle of the device can also be used with the machine for producing metal die-castings with suitable equipment and, moreover, allows the swinging arm to be arranged according to the shape of the shaped casting for direct extraction.

The invention will now be described, by way of example, for the removal of substantially rectilinearly confined plastic containers according to the drawings, in which Fig. 1 shows the device in the catching position and Fig. 2 the device in the deflected position.

The device consists of a swivel arm X having an angular cross-section and, in the gripping position, disposed under the mold face part ejecting the casting 6, and is inclined in the ejection direction. The lower part of the rocker arm 2 formed inside dosedaoí area for shaped castings and is rigidly connected with two piece bearing X disposed rotatably and slidably on the 10th post vodioím guide column 10 is further assigned a signal transmitter 2 P ^ro switching cycles, mounted on the machine podstavoi The rocker arm X has a signal transmitter 2 at the bottom of its lower part for switching off the ejection process. Finally, a further signal transmitter X is positioned such that, by means of a cam 11 on the bearing, it signals the return of the swing arm X after being ejected to a catching position.

The forces required for the pivoting movement are applied pneumatically in a known manner and are controlled via the control valve X and the multi-way valve 2 according to the electrical signals of the transmitters 2 »2» X ·

Pneumatic rod piston transmits force immediately to bearing X ·

The device is also adjustable for different dimensions and shapes of the castings in that the bearing X and the pneumatic cylinder mounting 6 can be adjusted horizontally and axially and locked so that the signal transmitter 6 can be installed anywhere at the bottom of the swing arm 2 ^{and the} signal transmitter X , χ can change in position.

Claims (1)

SUBJECT OF THE INVENTION A molding machine for injection molding, which is arranged on a horizontal guide column, characterized in that a pivot arm (5), consisting at least of at least one of the lower guide pillars (10) of the injection molding machine, is rotatably mounted with its bearing (7). two angularly arranged portions, and a signal transducer (3) for positioning the pivot arm (5), a signal transducer (2) for engaging the casting (9), and a further signal transducer (4) in cooperation with the cam (11) ) when the swivel arm (5) is deflected, and a pneumatic cylinder is provided to drive the device.