JPH0227136B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an automatic molded product take-out device capable of gate processing a molded product during an automatic molded product take-out cycle.

Prior Art Conventionally, a molded product automatic take-out device (hereinafter referred to as a take-out device) capable of gate processing a molded product during an automatic molded product take-out cycle has a large number of nippers (air It is generally known that a nipper) is attached via a bracket, and the molded product taken out by the chuck member is positioned between the blades of the nipper to perform gate processing on the molded product.

However, when gate processing is performed using Nitsupa, it is difficult to position the cutting edge reliably at the gate of the molded product, so there may be residual cutting edges on the product.
Furthermore, the product must be subjected to gate processing, which has the disadvantage of hindering the efficiency of molding operations and labor savings.

In addition, molded products that can be gated with Nitsupa are limited to shapes that allow the cutting edge to enter the gate.
For example, if the gate is located on the inner periphery of a concave shape, gate processing is impossible.

In recent years, in order to solve the above-mentioned drawbacks, there has been a de-gating device that uses an ultrasonic vibrating member instead of a nipper as a gate processing member, but since the de-gating device is separate from the extraction device, many This method requires a large amount of factory space and requires a lot of effort to set up the molded product.

Purpose The purpose of the present invention was to solve the above-mentioned drawbacks, and it is possible to reduce the size and weight of the chuck portion that holds the molded product, thereby shortening the removal time. An object of the present invention is to provide an automatic molded product take-out device that can securely perform gate processing by firmly contacting the molded product with the molded product.

Example The present invention will be described below with reference to Examples.

FIG. 1 is a front view of a take-out device according to the present invention, and FIG. 2 is a side view from the right side of FIG. A traveling body 4 that is reciprocated on the part 2a by a driving member 3 such as an electric motor, a front and rear cylinder 6 that is attached to the traveling body 4 and moves a holder 5 back and forth, and a front and rear cylinder 6 that is fixed to the holder 5 and moves the molded product. It is comprised of an elevating cylinder 8 for elevating and lowering a chuck portion 7 to be chucked, and an ultrasonic vibration member 10 fixed to the right end side of the main body frame 2 via a bracket 9 in the figure.

In the figure, 11a and 11b are fixed to the holder 5, and guide rods 12a and 12b are fixed to the chuck part 7, and slide within the traveling body 4 to guide the longitudinal movement of the holder 5 by the operation of the front and rear cylinders 6. ,
This is a guide rod that guides the chuck portion 7 in its upward and downward movements by sliding inside the holder 5.

FIG. 3 is a side view showing how the chuck part 7 and the ultrasonic vibration member 10 are attached, and FIG. 4 is a side view of the chuck part 7 and the ultrasonic vibration member 10.
FIG. 5 is a cross-sectional view taken along the line -- in FIG.
a, guide rods 12a and 12b are fixed to the chuck plate 14, and a posture control part 14 for inverting the chuck plate 14 by 90 degrees is fixed to the chuck plate 14 at appropriate intervals, and a molded runner is attached to the side surface of the chuck plate 14. Locking grooves 15a, 15b corresponding to the shape
At the same time, a large number of step-shaped support holes 16a, 1 are formed on the gate side of the locking grooves 15a, 15b.
a chuck plate 14; Above, the gap 2 between the pedestals 19a and 19b
Clamping members 21a, 21, such as air cylinders, are installed oppositely at the 0 position and clamp the sprue of the molded product.
It is composed of b.

The ultrasonic vibration member 10 is composed of an oscillator main body 22 for generating ultrasonic vibrations, and a single-letter-shaped horn 23 having a concave central longitudinal direction for press-contacting the gate side of the runner of the molded product.

Next, the operation of this embodiment will be explained.

To explain the operation of taking out the molded product P, after the traveling body 4 is positioned on the molding machine on the left side in the drawing, the chuck portion 7 is moved down to the mold position of the molding machine by the operation of the lifting cylinder 8. Next, by operating the front and rear cylinders 6, the sprue Pa is positioned in the gap, and the pedestal 19
After bringing a and 19b close to the molded product P, the clamping members 21a and 21b are operated to chuck the sprue Pa. At that time, the runner Pb of the molded product P is
It is supported by support pins 18a and 18b and chucked in a loosely fitted state in locking grooves 15a and 15b.

In the above state, after releasing the molded product P from the mold by moving the front and rear cylinders 6 back, the lifting cylinder 8
The molded product P is taken out from the molding machine by moving back.

Then, the chuck portion 7 is moved to the right in the drawing by the actuation of the drive member 3 to position the molded product P in front of the horn 23, and then the runner Pb of the molded product P is brought into pressure contact with the horn 23 by the operation of the front and rear cylinders 6. .

Due to the pressure contact, the support pins 18a, 18b are moved to the left inside the support holes 16a, 16b, and the elastic members 17a,
Press 17b to increase its elasticity and always make it a runner.
The upper surface of Pb is urged to come into pressure contact with the horn 23.

When the ultrasonic vibration member 10 is operated in this state, the product Pd is fused at the gate Pc due to the concentrated action of ultrasonic vibration stress on the gate Pc of the molded product P, and gate processing is performed.

The gated product Pd falls under its own weight onto a shooter (not shown) and is transported to the next process, such as a packaging process.

Further, after the gate processing, after the front and rear cylinders 6 are moved back, the sprue Pa by the holding members 21a and 21b is in the middle of the traveling body 4 being returned to its original position.
The clamp is released, and the gated molded product is dropped onto, for example, a shooter (not shown), and is ejected from the take-out device 1.

The traveling body 4 is then returned to its original position, and by repeating the above-described operations, the molded product P is taken out and gated.

In this way, in this embodiment, the horn 23 of the ultrasonic vibrating member 10 can be reliably moved without greatly vibrating the chuck part 7 for the molded product held by the chuck part 7 which is unstably supported by the lifting cylinder 8. The chuck portion 7 can be brought into pressure contact with the chuck portion 7, and gate processing can be performed reliably while reducing the size and weight of the chuck portion 7. Furthermore, since the gate treatment is performed during the cycle for taking out the molded product, it effectively prevents dust from adhering to the runner and sprue after the gate treatment, which are reused as resin raw materials.

Effects As explained above, the present invention provides a left and right running body that is movably supported between a molded product take-out position and a release position on a main body frame attached to an injection molding machine, and a left and right running body that is movably supported on a main body frame that is attached to an injection molding machine. An automatic molded product retrieval system that is equipped with a front-rear traveling body that is supported so as to be movable in the front-rear direction orthogonal to the direction of movement, and an elevating cylinder that is attached to the front-rear travel body and moves a chuck portion that holds the molded product in the vertical direction. In the device, the chuck portion includes a holding member for holding the sprue of the molded product, a pedestal having a number of grooves corresponding to the runners of the molded product,
A shaft member movably supported within a support hole provided in a groove of a pedestal, and an elastic member that urges the shaft member so that its upper end protrudes to the outside, The main body frame is equipped with an ultrasonic vibrating member that comes into contact with the molded product supported on the pedestal, depending on the release position of the molded product, thereby reducing the size and weight of the chuck portion that holds the molded product. It is possible to provide an automatic molded product take-out device that can securely perform gate processing by bringing the horn and the molded product into firm contact while reducing the time required to take out the molded product.

[Brief explanation of drawings]

FIG. 1 is a front view of the take-out device according to the present invention, and FIG.
The figure is a side view of Fig. 1, Fig. 3 is a side view showing the attachment state of the chuck part and the ultrasonic vibration member, Fig. 4 is a front view of the chuck part, and Fig. 5 is a sectional view taken along the line shown in Fig. 4. , FIG. 6 is an explanatory diagram showing changes in the state of pressure contact of the runner with respect to the horn. In the figure, 1 is a take-out device, 4 is a running body, 6 is a front and rear cylinder, 7 is a chuck part, 8 is a lifting cylinder, 10
1 is an ultrasonic vibration member, 15a and 15b are locking grooves, 1
6a, 16b are support holes, 17a, 17b are elastic members, 18a, 18b are support bottles, 19a, 19b
is a pedestal.

Claims (1)

[Claims] 1. A left and right running body movably supported on a main body frame attached to an injection molding machine between a molded product take-out position and a release position, and a moving direction of the left and right running body. In an automatic molded product retrieval device comprising a front and rear traveling body supported movably in orthogonal front and rear directions, and an elevating cylinder attached to the front and rear travel body and vertically moving a chuck portion holding a molded product, The chuck portion is movable within a holding member that holds the sprue of the molded product, a pedestal having a number of grooves corresponding to the runners of the molded product, and a support hole provided in the groove of the pedestal. The main body frame is provided with a supported shaft member and an elastic member that biases the shaft member so that its upper end protrudes outward, and the body frame is provided with a support on the pedestal according to the release position of the molded product. An automatic molded product retrieval device comprising: an ultrasonic vibrating member that abuts a supported molded product.