JPH0710553B2 - Molded product take-out device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a molded product which is provided by being connected to a resin molding machine and which is held in one mold of the resin molding machine after completion of the molding process. The present invention relates to a molded product takeout device for taking out.

[Background of the Invention]

A typical example of an injection molding machine for producing a resin molded product is shown in FIG. In this figure, 10 is a resin molding machine main body, 11 is an injection unit, 12 is a mold clamping unit, the injection unit 11 has a hopper 13, a kneading screw 14 and an injection nozzle 15, and the mold clamping unit 12, It has a fixed die 17 provided on the fixed platen 16 and a movable die 19 provided on a movable platen 18 which is provided so as to be movable in a direction in which it separates from and comes in contact with the fixed platen 16. Reference numeral 20 is a tie bar for guiding the movable platen 18, and 21 is an oil cylinder for moving the movable platen 18.

In such an injection molding machine, the movable mold 19 is attached to the fixed mold 17.
In the state where they are in close contact with each other, the molten resin is injected from the injection nozzle 15 into the molding space defined by the two molds, and is cooled and solidified to produce a molded product.

In this way, the movable mold is completed after one molding process is completed.
19 is opened and moved so as to be separated from the fixed mold 17, and in this opened state (FIG. 4 shows this state), the molded product take-out device normally attaches and holds the movable mold 19. Molded product is removed.

Thus, in the molded product take-out device, the molded product take-out head, the molded product storage container, and these molded product take-out head and the molded product storage container are connected,
Preferably, the molded product delivery pipe for transporting the molded product is formed, and the molded product take-out head is formed such that the movable mold of the resin molding machine is separated from the fixed mold after the molding process is completed. It is preferable that it is configured to be movable back and forth in the take-out space. Therefore, in such a configuration, a part of the transport pipe on the side connected to the takeout head is also moved following the movement of the takeout head.

[Problems to be solved by the invention]

However, when the molded product of the resin molding machine is large, the cavity to be formed in the mold becomes large, and as a result, the molded product unloading head of the molded product unloading device is inevitably large, and as a molded product transport pipe. Also, a thick one is required, and as a result, there is a problem in that the portion to be moved back and forth in the take-out space becomes heavy and the drive mechanism of the take-out head becomes large in the end. Further, since the portion to be moved becomes heavy, it becomes difficult to move the take-out head quickly, the waiting time required to start the next molding step becomes long, and eventually the manufacturing efficiency of the molded product decreases. There is a problem.

[Object of the Invention]

The present invention has been made based on the above circumstances, and an object thereof is to take out a molded product that allows a take-out operation to be easily and quickly performed by a small drive mechanism even if the take-out head has a large weight. To provide a device.

[Means for solving problems]

The molded product take-out device of the present invention is a molded product take-out device for taking out a molded product that is connected to a resin molding machine and, after completion of the molding process, is held in one mold of the resin molding machine, A molded product take-out head, a molded product storage container for storing the molded product, and a molded product transport pipe for transporting the molded product, which is connected between the molded product take-out head and the molded product storage container. A molding head connected to the molded product storage container for sucking the molded product, the molded product take-out head having a suction passage and a fixed position thereof, and a molding step. After the completion of the molding product, a waiting position having a take-out hole corresponding to the cavity of one of the molds for holding the molding product and a molding product passage communicating therewith, and to be located during the execution of the molding process of the molding product. A movable head provided so as to reciprocate between a take-out position to be located after the end of the molding step, and the movable head located at the take-out position is a molded product after the end of the molding step. The take-out hole is brought into close contact with or closely adheres to the cavity of the one mold in which the movable head is located at the take-out position. And the suction passage of the fixed head are fixed in a position where they communicate with each other in an airtight manner.

[Advantageous effects of the invention]

According to the molded product take-out apparatus of the present invention, even when the molded product take-out head has a large weight, the take-out operation can be easily and quickly performed by the small drive mechanism.

That is, the molded product take-out head is positioned after the fixed head, the position of which is fixed and connected to the molded product transport pipe, the standby position to be positioned during the molding process of the molded product, and the end of the molding process. Since the movable head is provided so as to be reciprocally movable between the power take-out position and the power take-out position, only the movable head is to be moved in the take-out head, and the weight of the movable part can be reduced. Therefore,
For example, when the resin molding machine is for a large molded product, or for mass production with a large number of cavities, the entire take-out head or the molded product transportation pipe has a large weight. Even in such a case, only the movable head, which is the movable portion, can be made light in weight, and the movable head can be moved easily and quickly by the small drive mechanism. As a result, it is possible to extremely quickly take out the molded product while making the entire molded product take-out device small in size, and eventually it is possible to quickly operate the resin molding machine at short intervals. Molded products can be manufactured with extremely high efficiency.

Then, the movable head positioned at the take-out position is in a state where its take-out hole is close to or in close contact with the cavity of one of the molds for holding the molded product after the molding process is completed, and the fixed head is Since the molded product passage of the movable head and the suction passage of the fixed head are fixed in a position where the suction passage of the fixed head communicates with each other when positioned at the take-out position, the suction force by the decompression mechanism is applied to the molded product during the take-out operation. The molded product can be reliably stored in the molded product storage container by being sufficiently acted on the entire passage.

[Specific configuration of the invention]

 Hereinafter, the present invention will be specifically described.

FIG. 1 is an explanatory view showing the outline of an embodiment of a molded product takeout device according to the present invention.

In the figure, 30 is a molded product take-out head, 40 is a molded product transport pipe, 50 is a molded product storage container, and 80 is a pressure reducing mechanism.

The molded product take-out head 30 is, for example, a fixed head 60 mounted and fixed to a resin molding machine, a standby position A (shown by a broken line in FIG. 1) to be positioned during the execution of the molding process, and the end of the molding process. Extraction position B to be located later
And a movable head 70 provided so as to be reciprocally movable by a movable head drive mechanism (not shown) along the arrow P, the arrow Q, the arrow R, and the arrow S.

As shown in FIG. 2, on one side of the upper surface of the movable head 70, as shown in FIG. 2, it corresponds to one mold, for example, the cavity of the movable mold 19 in which the molded product is held after the movable mold 19 is separated in the resin molding machine. A take-out hole 71 is provided. In the illustrated example, since the movable mold 19 is provided with a total of four cavities, a total of four take-out holes 71 are provided on the upper surface of the movable head 70 at the take-out position B corresponding to the respective cavities. It is provided in the position. Inside the movable head 70, molded product passages 72 that communicate with the ejection holes 71 are provided. 73 is the outlet end of the molded product passage 72.

At the upper end of the fixed head 60, the lower end of the movable head 70 is united at the take-out position B, and a suction passage 62 is provided that communicates with the molded product passage 72 of the movable head 70 in an airtight manner. 61 is the inlet end of the suction passage 62, 63 is the suction passage 62
Is the exit end of. One end 41 of each molded product transport pipe 40 is airtightly connected and fixed to each of these outlet ends 63, and the other end 42 of each of these transport pipes 40 is hermetically sealed in the storage space of the corresponding molded product storage container 50. Is connected to communicate with. The transportation pipe 40 is provided with a decompression mechanism 80, which will be described later, for the molded product.
It is for transportation by the suction force of, and is made of, for example, rubber or the like.

The take-out position B is a position where the take-out hole 71 of the movable head 70 corresponding to the cavity of the movable mold 19 in which the molded product is held after the movable mold 19 is separated approaches or closely contacts, and the fixed head 60 is When the movable head 70 is positioned at the take-out position B, the molded product passage 72 of the movable head 70 is fixed at a position where it is in air-tight communication with the corresponding suction passage 62 of the fixed head 60. .

The movable head drive mechanism is not particularly limited, and various structures can be used. Practically, movable mold
It is preferable to be configured to be driven in conjunction with the fixed mold 17 when it is moved away from the fixed mold 17. In this case, a dedicated drive source such as a motor is required for the molded product take-out device. Therefore, the device can be manufactured easily and at low cost.

In addition, in order to efficiently manufacture molded products, the movable mold 19
It is preferable that the movable head 70 is located at the take-out position B at the same time when the opening movement of the above is completed. Specifically, immediately before the opening movement of the movable mold 19 is completed, the movable head 70
Of the movable head 70 by accelerating the moving speed of the movable head 70.
It is possible to adopt a configuration to catch up with.

Reference numeral 80 denotes a decompression mechanism that decompresses the storage space of the molded product storage container 50, and is provided in common to each storage container 50, for example. In the decompression mechanism 80, 81 is a decompression chamber, 82 is an exhaust fan, 83 is a solenoid valve, and 84 is a manifold.

According to the molded product take-out device having the above configuration, the taking-out operation of the molded product is performed as follows.

That is, in the resin molding machine, in a state where the movable mold 19 is in close contact with the fixed mold 17, the molten resin is injected into the molding space of both molds, and then this is cooled and solidified to produce a molded product, The movable mold 19 is opened and moved to hold the molded product in the movable mold 19.

On the other hand, in the molded product take-out apparatus, the movable head 70 of the take-out head 30 is positioned at the standby position A during the molding process of the molded product, and after the completion of the molding process, it is preferably movable by the movable head drive mechanism. In conjunction with the opening movement of the mold 19, the movable head 70 is moved from the standby position A along the arrow P and the arrow Q to the take-out position B, whereby the movable head 70 is integrated with the fixed head 60. The molded product passage 72 and the suction passage 62 are brought into air-tight communication, and the take-out hole 71 of the movable head 70 is very close to or surrounds the molded product held in each cavity of the movable mold 19. Is set to

Then, by driving the decompression mechanism 80, the suction force by the decompression mechanism 80 is applied to the molded product, whereby the molded product is suction-transported through the take-out hole 71 of the movable head 70 and inside the molded product storage container 50. Is stored in.

When the removal of the molded product is completed in this way, the movable mold 19 is moved in the direction opposite to the opening movement direction, and is preferably moved by the movable head drive mechanism in conjunction with the movement of the movable mold 19. The head 70 is moved from the take-out position B along the arrow R and the arrow S and is again positioned at the standby position A. Then, in this state, the next molded product is manufactured and taken out again through the same process as described above.

According to the above embodiment, the molded product take-out head 30, the fixed head 60 whose position is fixed and connected to the molded product transport pipe 40, the waiting position A to be positioned during the performance of the molding process, and the molding position Extraction position B to be located after the end of the process
Since the movable head 70 is separated between the movable head 70 and the movable head 70, the movable head 70 is the only portion of the take-out head 30 that needs to be moved, and the weight of the movable portion can be reduced. Therefore, even if the resin molding machine is for mass production having a large number of cavities as described above and the entire take-out head 30 or the molded product transport pipe 40 becomes heavy, the movable head 70 Since only one can be made lighter, the movable head 70 can be moved easily and quickly by the small movable head drive mechanism, and as a result, the entire molded product take-out device can be made compact and extremely quick. Therefore, the molded product can be taken out, and the resin molding machine can be quickly operated at short intervals, so that the molded product can be manufactured with extremely high efficiency.

The movable head 70 positioned at the take-out position B has the movable mold 19 that holds the molded product after the movable mold 19 is separated.
The take-out hole 71 of the movable head 70 is brought into a state of approaching or closely contacting the cavity of 19, and the fixed head 60 has a molded product passage of the movable head 70 when the movable head 70 is located at the take-out position B. Since the 72 and the suction passage 62 of the fixed head 60 are fixed in a position where they are in air-tight communication, the suction force by the decompression mechanism 80 is sufficiently applied to the entire passage of the molded product during the taking-out operation to ensure the molded product. It can be stored in the molded product storage container 50.

Further, when the movable head drive mechanism is configured to follow the movement of the movable mold 19, a separate dedicated drive source such as a drive motor is not required, and therefore the configuration is extremely simple.

Then, the movable head drive mechanism is configured to also have a function of accelerating the moving speed of the movable head 70 to catch up the movable head 70 with the movable mold 19 immediately before the opening movement of the movable mold 19 is completed. In this case, since the movable head 70 can be combined with the fixed head 60 at the same time when the opening movement of the movable mold 19 is completed, the work for taking out the molded product should be started immediately after the opening movement of the movable mold 19 is completed. As a result, the molding process can be repeatedly performed at short intervals, and the production efficiency of molded products can be significantly improved.

After all, according to the above-mentioned embodiment, even when the entire molded product take-out head 30 has a large weight, the take-out operation can be performed easily and quickly by the small movable head drive mechanism.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and various modifications can be made.

For example, a resin molding machine has one movable mold cavity
The molded product take-out apparatus of the present invention can be applied to the case of molding individual and large molded products. In this case, the number of the take-out hole of the movable head, the suction passage, the transport pipe and the like may be one.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a molded product takeout device according to the present invention, FIG. 2 is an explanatory view showing a molded product takeout head, and FIG. 3 is an explanatory view showing an outline of an example of a resin molding machine. is there. 10 …… Resin molding machine main body, 11 …… Injection unit 13 …… Hopper, 14 …… Mixing screw 15 …… Injection nozzle, 16 …… Fixed platen 17 …… Fixed mold, 18 …… Movable platen 19 …… Movable Mold, 20 …… Tie bar 21 …… Oil cylinder 30 …… Molded product take-out head 40 …… Molded product transport pipe, 41 …… One end 42 …… Other end, 50 …… Molded product storage container 60 …… Fixed Head, 62 …… Suction passage 70 …… Movable head, 71 …… Ejection hole 72 …… Molded product passage, 80 …… Decompression mechanism 81 …… Decompression chamber, 82 …… Exhaust fan 83 …… Solenoid valve, 84… … Manifold

Claims (1)

[Claims] 1. A molded product take-out device, which is connected to a resin molding machine and takes out a molded product held in one of the molds of the resin molding machine after the molding step is completed, the molded product taking-out head. And a molded product storage container for storing the molded product, a molded product transport pipe for transporting the molded product, which is connected between the molded product take-out head and the molded product storage container, and the molded product. And a decompression mechanism for sucking the molded product, which is connected to the storage container, wherein the molded product take-out head has a fixed head having a suction passage and its position is fixed, and a molded head after completion of the molding process. It has an ejection hole corresponding to the cavity of one of the molds in which the product is held and a molded product passage communicating therewith, and has a standby position to be positioned during the molding process of the molded product and the end of the molding process. A movable head provided so as to be reciprocally movable between a take-out position to be located in the movable head and the take-out position, and the movable head located at the take-out position holds a molded product after the completion of the molding step. The take-out hole is brought into a state of approaching or closely contacting the cavity of the one mold, and the fixed head has a molded product passage of the movable head and the fixed head when the movable head is positioned at the take-out position. The molded product take-out device is characterized in that it is fixed to a position where the suction passage is communicated airtightly.