JP2557666Y2 - Jig for gate cutting of injection molded parts - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate cutting jig used for cutting a gate remaining on an injection molded part.

[0002]

2. Description of the Related Art Among automobile parts formed by an injection molding method, a molded article such as an instrument panel is large and a large amount of resin material is injected. Because the gate remains,
This type of molded product is taken out of the mold, positioned and set on a work receiving jig, and then these gates are cut using an articulated robot for gate cutting that operates according to a program.

[0003] On the other hand, molded articles such as instrument panels of this type vary in shape and size depending on the type of vehicle. The jig must be replaced, and when many types of instrument panels are formed, there is a problem that the working efficiency is extremely deteriorated.

The apparatus disclosed in Japanese Utility Model Laid-Open No. 58-180019 is designed to adjust the position according to the shape of a molded product. However, in addition to the trouble of having to adjust the position each time according to the shape of the molded product, there is a problem that it cannot be applied to a device having a different shape itself such as an instrument panel of an automobile. I have.

[0005]

[Problem to be solved by the present invention] The present invention has been made in view of such a problem.
By displacing one work receiving jig suitable for a molded product from among a plurality of molded products to a gate cut position, a new gate cutting jig capable of easily coping with various molded products is provided. is there.

[0006]

That is, in the present invention, a plurality of jig support pins are provided on each surface forming a jig mounting surface as a jig for gate cutting of an injection molded part to achieve such an object. An upright rectangular jig support is rotatably mounted in the vicinity of this device so that a required one of the jig mounting surfaces faces the gate cut processing device, while the surface of the molded product for each model is formed on the surface. A plurality of pin insertion lock holes corresponding to each jig support pin are provided on a panel-shaped work receiving jig provided with a positioning fixing member according to the above, and the jig support pin is inserted into this pin insertion lock hole. Thus, the work receiving jig can be detachably attached to the jig support.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and 2 show a gate cutting jig according to an embodiment of the present invention. FIG. 3 shows an example of the arrangement of devices around an articulated robot equipped with the gate cutting jig. It is shown.

First, a peripheral device of an injection molding machine for molding an instrument panel for an automobile will be described with reference to FIG. 3. A work receiving jig 10 described later is arranged next to the injection molding machine shown only with the movable mold 1. Established
An upper rail 2 is erected above the injection molding machine 1 and the work receiving jig 10, and the chuck 5 at the rod end is moved up and down by an elevating cylinder 4 of an unloader 3 running on the upper rail 2. The workpiece W received by the workpiece W
0.

On the other hand, an articulated robot 6 for gate cutting is provided on the front surface of the work receiving device 10, and an arm is provided according to a preset program for the molded product W gripped by the work receiving device 10. While moving 6a, the gates remaining at various places of the molded article W are removed,
Next, the molded product W is configured to be mounted on a hanger 8 that has traveled in the vicinity of the articulated robot 6 along the rail 7 and transported.

Therefore, the work receiving device 1 of the present invention will now be described.
0 will be described in detail with reference to FIGS.

In the figure, reference numeral 11 denotes a vertical axis for rotating the workpiece receiving jig 25 adapted to the molded product W to the articulated robot 6, and the vertical axis 11 corresponds to a bearing provided on the base 15. A gear 12 rotatably supported and fixed at the lower end so as to be driven by a drive motor 13 disposed in a base 15 meshes with a pinion 14 of the drive motor 13.

Reference numeral 20 denotes a vertical axis 15 via a stay 21.
The jig support frame 20 is fixed to a rectangular cylindrical jig support frame.
Form jig mounting surfaces 22A to 22D, respectively, and jig support pins 23 are provided upright at four corners of these surfaces A to D.
The four types of work receiving jigs 25A to 25D holding different types of molded products W can be mounted on the jig mounting surfaces 22A to 22D.

On the other hand, a work receiving jig 25 mounted on the jig support frame 20 by these jig support pins 23 is formed on a panel, and is opposed to each jig support pin 23 of the jig 25. The lower part has a large-diameter hole 26a through which the head 23a of the jig support pin 23 passes, and the jig support pin 2
A darma-shaped pin insertion lock hole 26 comprising an upper small-diameter hole 26b through which the third neck 23b passes is provided, and each jig support pin 23 is inserted into the large-diameter hole 26a of the lock hole 26. The work receiving jigs 25A to 25D can be attached to the respective surfaces of the jig support frame 20 by pulling down the jig 25 with the above.

On the surface of the workpiece receiving jig 20, there are provided a plurality of receiving portions 27 for receiving the molded product W to be held, that is, the upper and lower edges of the instrument panel. Above and below the bent portions Wa on both sides of the instrument panel, the upright pieces 28 that fit into the concave portions on the back surface and position the instrument panel.
And a clamper 30 that is rotated by a cylinder 29 and clamps the bent portion Wa of the instrument panel between the upright piece 28 and the upright piece 28.

In the figure, reference numeral 16 denotes an encoder fixed to the vertical axis 11, reference numeral 17 denotes a magnetic sensor for detecting a magnetic substance embedded in the encoder 16 and detecting a rotation angle of the vertical axis 11, 1
Reference numeral 8 denotes a gear 1 at the lower end of the vertical axis 11 upon receiving the identification signal of the molded product W
2 and the stopper 19 is inserted into the work receiving jig 2
5 shows cylinders for determining the position of the robot 5 so as to face the articulated robot 6.

In the apparatus configured as described above, when the movable mold 1 and a fixed mold (not shown) are loaded into an injection molding machine in order to mold an instrument panel of a current model, the mold is also restored. At this time, the identification signal of the molded article W is output to the motor control circuit. Accordingly, the motor control circuit rotates the vertical axis 11 based on the pulse signal from the magnetic sensor 16, and moves one work receiving jig 25 holding the instrument panel 10 to the articulated robot 6. Then, the determining cylinder 18 is operated, and the longitudinal axis 11 is locked at that position by the stopper 19.

In this state, when the injection molding machine forms the instrument panel, the take-out machine 3 takes out the formed instrument panel from the movable mold 1 and places it near the front of the work receiving jig 25 in parallel. The upper edge and the lower edge are engaged with the receiving portion 27, and the bent portions Wa on both sides are engaged with the upright pieces 28 of the jig 25.
The work receiving jig 25 has the cylinder 29 and the clamper 3.
The instrument panel is firmly fixed at this position between the upright piece 28 and the clamper 30 by rotating the arm 0, and the articulated robot 6 performs a cutting process of the gate remaining on the instrument panel. When the cutting process is completed, the robot 6 grasps the instrument panel, transfers it to the hanger 8, and ends a series of operations.

It should be noted that the above are four types of work receiving jigs 25A-
The jig support frame 20 is formed in a square cylindrical shape so as to be able to hold D. However, the jig support frame 20 may be formed in another polygon such as a hexagon according to the number of the work receiving jigs 25 to be supported. Can be.

[0019]

As described above, according to the present invention, a rectangular jig support is rotatably provided near the gate cut processing device, and various types of molding are provided on these jig mounting surfaces. The work receiving jig for mounting the product is detachably mounted. By simply positioning the corresponding work receiving jig facing the gate cut processing device, the work receiving jig can be used for changing the model of the molded product. Can be easily handled.

Further, the work receiving jig can be mounted on the jig support by engaging the pin insertion hole provided on the work receiving jig with the jig supporting pin provided on the jig mounting surface. By properly changing the work receiving jig, other molded products can be easily handled.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a top view of the same device.

FIG. 3 is a diagram showing an arrangement state of devices around the articulated robot provided with the above device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 movable mold 3 unloader 6 articulated robot for gate cutting 8 hanger 10 work receiving device 13 drive motor 18 degree determining cylinder 20 jig support frame 22 jig mounting surface 23 jig support pin 25 work receiving jig 26 pin Lock hole for insertion 30 Clamper W Molded product

Claims (1)

(57) [Scope of request for utility model registration] 1. A rectangular jig support having a plurality of jig support pins erected on respective surfaces forming a jig mounting surface, and a required one of the jig mounting surfaces faces a gate cut processing device. A panel-shaped workpiece receiving jig provided with a positioning fixing member corresponding to the shape of a model-specific molded product on the surface while being rotatably mounted near the gate cut processing device so as to correspond to each of the jig support pins. By providing a plurality of pin insertion lock holes and inserting the jig support pins into the pin insertion lock holes, the work receiving jig is detachably attached to the jig support. A gate cutting jig for injection molded parts.