JPH0324343Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a product take-out device such as an injection molding machine.

[Conventional equipment and its drawbacks]

The conventional product take-out device will be explained with reference to FIGS. 5 to 7. As shown in FIG. 5, when the molding is completed and the movable plate 1 is retracted to the retracting limit, a product extrusion device (not shown) is used to remove the molded product. is separated from the movable mold 3.

Next, a finger 6 for gripping the molded product 2, which has a chucking cylinder 5 attached to the tip of the arm 4 shown in FIG. 6, is lowered from the upper part of the figure to a predetermined height position (indicated by a chain line). Next, move from the position indicated by the chain line in the direction of arrow a (to the molded product 2 side) and grasp the molded product 2. Next, when the nipper 7 cut the mold gate, the finger 6 moved away from the movable mold 3 (to the right in the figure) while grasping the molded product 2, and removed it from the movable mold 3. The post-molded product 2 is taken out.

With the configuration described above, if the above-mentioned operation is performed or if the arm is rapidly extended to the product part, the arm will become quite long, and together with the finger part attached to the tip, vibration will occur. However, for accurate tracking, I had to wait until the vibrations had subsided enough. As a result, the molding cycle was lengthened, resulting in poor productivity.

If the chucking operation was performed while the finger was vibrating, accurate chucking would not be possible and the gate cut portion would also come off the correct position, making it impossible to perform accurate gate cuts (no post-processing required).

[Purpose of invention]

This invention eliminates the above-mentioned drawbacks and eliminates the vibration of the arm of the product take-out device when taking out products.
Therefore, it is an object of the present invention to provide a product ejecting device that can perform accurate chucking and gate cutting, and can shorten the molding cycle.

[Key points of the idea]

In order to achieve the above-mentioned purpose, in a product take-out device such as an injection molding machine that has a finger at the tip of the arm to grip the molded product, a tapered guide pin provided on the movable mold side and a guide pin of the tapered end are used. A product take-out device for an injection molding machine or the like is characterized in that the finger is provided with a stop means that stops the movement of the finger when the finger is fitted.

〔Example〕

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 4. After the molding is completed, the spool portion 15a is moved from the fixed mold 12 attached to the fixed plate 11 to the movable die 14 attached to the movable plate 13. Moving items that remain attached 1
5 with the molded product 15 still attached (to the left in the figure), and at the retraction limit, the molded product 15 is separated from the movable mold 14 by a product ejecting device (not shown) to the extent that it does not protrude from the movable mold 14. Shape. Next, as shown in FIG. 2, the finger 18 provided with a chuck cylinder at the tip of the arm 16 extends to a predetermined position indicated by a chain line, stops, and then moves from the position indicated by a chain line in the direction of the molded product 15 with an arrow. The taper pin 1 moves as shown in b (leftward in the figure) and is attached to the mold 14.
9 into which the fitting hole 20 provided in the finger 18 fits.

Next, the chucking cylinder 17 pinches the molded product 15 from above and below in the figure, and at the same time, the spool portion 15a
is also chucked by the sprue section finger 21. 22 is a nip device for cutting the gate.

[Operation and Effect] Since the operation is performed with the above configuration,
Arm 1 is attached to taper pin 19 provided in mold 14.
Since the fitting hole 20 of the finger 18 at the tip of the arm 16 is fitted, the arm 16 does not vibrate and the drawback mentioned above is eliminated.

In the above description, a taper pin and a hole into which the finger fits are used as the positioning device for the finger of the mold, but the device is not limited to this, and it is obvious that any device that can be used for positioning may be used.

[Brief explanation of the drawing]

Figures 1 to 4 are diagrams showing one embodiment of the present invention, in which Figure 1 shows the movable mold retracted to the retract limit after molding is completed, and Figure 2 shows the product take-out device grasping the molded product. Figure 3 is the cross section I-I in Figure 2.
Figure 4 is a detailed view of the "A" part in Figure 2, Figures 5 and 6 are diagrams of the conventional device, and Figure 5 is a diagram when the movable mold has retreated to the retraction limit after molding is completed. Figure 6 is a diagram showing the molded product being grasped by the product take-out device. 13...Movable plate, 14...Movable mold, 15...Molded product, 16...Arm, 17...Chuck cylinder, 1
8...Finger, 19...Taper pin, 20...Fitting hole.

Claims (1)

[Scope of utility model registration request] In a product take-out device such as an extrusion molding machine that has a finger at the tip of an arm for gripping a molded product, a tapered guide pin provided on the side of the movable mold and a finger that fits into the tapered guide pin are used. A product take-out device for an injection molding machine, etc., characterized in that a stop means for stopping the movement is provided on the finger.