JPS5923683B2 - mold equipment - Google Patents

Description

Detailed Description of the Invention The present invention relates to an automatic take-out device for molded products, which reduces the cost of the device, shortens the molding cycle at the same time, reliably takes out the molded products from the mold, and aligns them for the next process even after take-out. The purpose is to make it easier to do things like this.

Conventionally, automatic ejecting of molded products uses an ejecting robot installed outside the mold, making the robot equipment expensive.

2) After the mold is opened, the robot must enter into the mold, take out the mold, and then move out of the mold, which takes too much time to take out the molded product.

3) A mold opening stroke is required for the robot to move in and out when the mold is opened, which takes a long time to open and close the mold, which hinders shortening of the cycle.

4) Mistakes in the opening and closing of the mold and in the operation of the robot are likely to occur, potentially damaging the expensive mold.

It has drawbacks such as:

The present invention solves the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to FIGS. 1 to 6.

1 is a molded product, 2 is a cavity plate, and a chamber 3a is provided on the surface of the core plate 3 facing the cavity plate 2.
, 3b are formed.

3 is a core plate, 4 is a spacer block for securing protrusion space, 5 and 6 are cavity plates 2
This is an attachment plate for attaching the mold made up of the core plate 3 and the core plate 3 to the molding machine.

T is an ejector plate, 8 is an ejector pin that is fixed to the plate and separates the molded product from the mold, 9 is an ejector rod built into the molding machine, 11 is a sprue for injecting resin, die casting, etc. from the molding machine into the mold, 12 is a take-out block having a guide portion that guides the molded product 1 out of the mold when the molded product 1 falls under its own weight. 13 is a cam plate that operates the take-out block; 14 is a chute for receiving the molded product automatically falling from the take-out block; 15 is the molding machine main body; 16 is a conveyor that moves the molded product; 1? is the take-out block 12
18 is a pin connected to the engineer plate 7; 19 is a protruding spring for separating the molded product 1 from the engine turbine 8; 2;
0 and 21 are cam grooves and cam pins that operate the take-out block 12.

22 and 23 are molding machine surface plates.

The take-out blocks 12, 12' are movable between a take-out position where the mold can be engaged with the molded product when the mold is opened and a standby position located inside the chamber when the mold is opened and closed.
and a cam pin, and the extraction block 12
is connected to a take-out block drive means for movement in synchronization with the opening/closing movement of the mold.

The ejection block drive means includes an ejector rod 9, an ejector plate 7, and an ejector pin 18 connected to the ejector plate 7.
, a spring 19 and an ejector pin 18, and supports the take-out block 12 slidably at right angles to the mold opening/closing direction.

In the above configuration, when the mold is closed, the resin, die casting, etc. injected into the mold from the sprue 11 are cooled and the molded product is
becomes.

At this time, the take-out blocks 12 and 12' are respectively in the chamber 3a.
, 3b. In order to take out the solidified molded product, the space between mold plates 2 and 3 begins to open, and cavity plate 2 is first opened.
When the molded product separated from the core 3 is opened a certain distance while being connected to the core 3, the molded product is separated from the core 1 through the ejector plate 7 and the ejector turbine 8 by the ejector rod 9. In synchronization with this operation, the ejection block 12 is advanced by the ejector pin 18 incorporated in the ejector plate 7, and at the same time, the cam groove 20 cut in the cam play port 3 and the cam pin fixed to the ejector protrusion 12 are moved forward. 21, the take-out plotter 12 located symmetrically with respect to the molded product inserts the molded product 1, and the spring 19 completely separates the molded product 1 from the mold via the ejector pin 18. The slide protester 17 is fixed to a protruding pin 18 and drives the take-out proc 12. Alternatively, the extraction blocks 12, 12' may be connected as separate pieces and slid together. The molded product 1 completely separated from the mold by the ejection block 12 is
It falls under its own weight through the rail section 24, passes through the chute 14, moves onto the conveyor 16 attached to the molding machine main body 15, and is stored at a predetermined location.

In the above method, the ejecting block 12 is built into the mold, and the cam groove 20 of the cam plate 13 and the ejecting block 1 are connected by using the opening and closing of the mold.
The cam pin 21 attached to the cam pin 2 guides the molded product 1 safely into the rail groove 24 in a timely manner and connects it to the alignment in the next process, making it possible to quickly and safely separate the molded product from the mold at low cost. I can put it out.

FIG. 4 shows another example of the post-processing after the molded product 1 is taken out from the mold by the take-out block 12.

In this case, after the molded product 1 falls down the rail section 24 of the take-out block 12 under its own weight, it moves to the molded product receivers 26, 26' attached to the molding machine main body 15, and is moved to a predetermined position by the interlocking of the rack and pinion. This is an example in which the objects are transported and arranged on a conveyor 16 in a controlled manner. The above molded product receiver 26,
26' may be directly connected to a separately driven robot depending on what is to be stored in the moving area.

Further, FIG. 5 shows an example in which a cushion is attached to the molded product receiver 27 to soften the impact of falling due to its own weight.

As an example of this cushion, a low-resistance cam 28 connected to a tension spring is incorporated to prevent damage when a molded product is dropped in one force phase. Note that as a treatment to prevent the molded product 1 from being damaged, a soft material such as resin or cloth may be glued or coated on the rail portion 24 of the take-out block 12, and it may also be made of the same material as the take-out block 12, such as mild steel or resin. It's okay.

In the above embodiment, the take-out block 12 is driven by the opening/closing operation of the mold, but FIG. 6 shows an embodiment in which the take-out block 12 is driven by a separate drive source.

After the molded product 1 has been extruded by the ejector turbine 8, a projecting plate 30 having a groove 29 that slidably supports the ejection block 12 is advanced by a cylinder 31 and further by another cylinder 32. The take-out block 12 sandwiches the molded product 1, and then, in order to separate the engine turbine 8 and the molded product 1, as the cylinder 30 moves further forward, the molded product 1 puts the rail part 24 of the take-out block 12 under its own weight. Tumble and fall. As described above, according to the present invention, a chamber is formed in the mold for the take-out protester to take out the molded product to wait when the mold is closed, so the take-out prot is always inside the mold, unlike conventional robots. There is no need for the time required for the robot to move out of the mold when closing the mold, that is, during molding, and the mold opening stroke required for the robot to move in and out can be shortened, which has the effect of shortening the molding cycle as a whole. That's what you get.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the mold according to the present invention in the slave (Y-axis) direction;
Fig. 2 is a lateral sectional view, Fig. 3 is a side view of the mold, Fig. 4 is a sectional view showing an example of the next process after ejection, and Fig. 5 is a sectional view of the mold.
The figures are cross-sectional views of different usage examples, and Figure 6 is the extractor plotter 1.
FIG. 2 is a cross-sectional view of another example device of the present invention showing two different driving examples. 1... Molded product, 2... Cavity plate, 3... Core plate, 7... Protruding plate, 9... Protruding rod. , 12...
...Eject block, 17...Slide block, 18...Eject pin.

Claims (1)

[Claims] 1. An openable and closable mold having a cavity plate and a core plate, and a chamber formed within this mold on one or both of the opposing surfaces of the cavity plate and core plate, which engages with the molded product when the mold is opened. A plurality of take-out blocks provided in the mold are supported so as to be movable between possible take-out positions and a waiting position located in the chamber when opened and closed, and have guide portions for guiding the molded product to the outside of the mold. and a take-out block drive means for moving the take-out block in synchronization with the opening/closing movement of the mold, and the chamber has a shape that allows the take-out block to be completely inserted into the chamber when the mold is closed. , the take-out block has vertical grooves that can guide both sides of the molded product in the vertical direction, and the take-out block driving means removes a protruding plate etc. from the take-out block that is linked to the opening/closing operation of the mold. A mold device configured to include a cam that is connected to the take-out block by a pin or the like and that defines the movement locus of the take-out block.