JPS5898216A - Automatic withdrawing device for product of injection molding machine - Google Patents

Abstract

PURPOSE:To withdraw molded pieces efficiently in an injection molding machine with two or more vertical die clampers by a method wherein a single product seat is allowed to reciprocate between die clamping devices in proportion to the molding cycle. CONSTITUTION:In a continuously molding process by twin die clamping devices 12, 14, when molding operation is completed in the clamping device 14 on one side the stand-by product seat 18 advances between the dies of the die clamping device 14, receives the molded piece and then returns to the original position. Next, the product seat 18 is moved up to a position connected by the movable rack 16 to the conveyor 20 to transfer the molded product to the conveyor 20. Thereafter, the product seat 18 stands by in preparation for completion of molding operation in the die clamping device 12. In this manner withdrawal of molded pieces could be conducted efficiently in the injection molding machine with two or more vertical die clamping devices.

Description

Detailed Description of the Invention The present invention provides a molded product ejecting device for an injection molding machine, particularly a vertical type in which a plurality of movable molds move forward and backward in the vertical direction relative to a fixed mold below to open the mold. This invention relates to an automatic product take-out device for an injection molding machine equipped with a clamping device (hereinafter referred to as a vertical mold clamping device). 4. In general, the automatic ejection device of an injection molding machine is used to save labor and speed up the molding operation by fully automating the molding operation, and also to ensure the safety and reduce the fatigue level of workers in molding operations of large molded products. It is also essential. Many types of automatic product unloading devices have been proposed, and they are generally capable of automatic 11-hour unloading of products, automatic unloading of sprues and launches, automatic insertion of insert fittings into molds, and automatic assembly and connection of products. It is used for secondary processing such as layers, and for transporting and storing products.Recently, 9 machines have been used to carry out a series of related operations, from taking out fissures to secondary processing, assembly, and transport. Controlled robots have also been developed.

However, in the case of an injection molding machine equipped with a vertical mold clamping device as described above, the product ejected by the extrusion bin after mold release is affected by the mold force as in a general injection molding machine having a horizontal dust clamp Ti1. ), it is difficult to process continuously molded products efficiently and automatically, and for simple tasks, it is difficult to handle molded products using the suction force of a vacuum chuck or a method using a telescoping link. Conventional methods such as gripping the molded product by manipulating the cylinder using clamping metal fittings have been sufficient to some extent, but now there are many demands for high-ticle molding, labor saving, and efficient production. However, in the conventional method, there was no consistent method for removing the product, which was inconvenient.

Therefore, in order to obtain a product extraction method that can satisfy the above requirements,
As a result of diligently improving and prototyping, we have created a two-barreled or more vertical type! ! In an injection molding machine with a 1m device,
The mold clamping device is automatically moved alternately according to the molding cycle time according to the molding cycle time, and the molded product is taken out and the product receiver for the next process is continuously and efficiently transferred to the conveyor. It has been found that by doing so, it is possible to obtain a product removal device +1 which has a simple structure and is excellent in the operation of removing molded products.

Therefore, the general object of the present invention is to produce a product that efficiently processes molded products by alternately taking out molded products and continuously discharging them to a predetermined position in an injection molding machine having a plurality of vertical mold clamps*. To provide extraction equipment.

To achieve this objective, the present invention provides an injection molding machine having two or more vertical WaS devices, in which a single product pedestal is automatically moved alternately between each mold clamping device according to the molding cycle. When the creases of each mold clamping device are opened, a product conveyor is arranged so as to come between the movable mold and the fixed mold, and a product conveyor is arranged corresponding to the 8U storage tray. →Take it as a sign.

In other words, one Fi horizontal injection device is installed in parallel with multiple mold clamping devices, and a movable stand is installed in parallel with these mold WI devices so that it straddles the injection device or is placed on the opposite side. A product holder is placed on the movable pedestal so that it can move freely and hang between the movable mold and the fixed mold when the mold clamping device opens the mold, and the product holder is placed on the end of the movable pedestal. Make the end of the conveyor *. That is, as will be explained later, the product conveyor is 90. placed at an angle of t.

The product pedestal is composed of an upper pedestal, a lower pedestal, and a guide roll that is interposed between these and the lower pedestals to move the upper pedestal below the mold clamping device. Furthermore, it is constructed in the form of a conveyor with belts attached to multiple rolls and is driven by an appropriate drive device, while moving wheels are attached to the lower part of the lower pedestal and are driven by an appropriate drive device and a braking mechanism. to control movement.

In addition, felt, fuzzy cloth, or artificial grass can be pasted on the belt surface of the upper pedestal to protect the molded product.
Furthermore, a lift Ttt- can be provided below the product holder to allow alignment with the mold clamping device.

Other objects and advantages of the invention will become more apparent from the following description.

Next, the bottom side of the automatic product take-out device of an injection molding machine according to the present invention will be explained below with reference to the attached drawings.

As shown in FIG. 1, the automatic product take-out device of the injection molding machine according to the present invention is connected to a plurality of mold clamping devices 12 and 14 installed in parallel with the injection device 10. A movable pedestal 1'6, a mold clamping device 12. ．． 14 and a product conveyor 20 extending perpendicularly to the end of the product pedestal 18.

In FIG. 2, the mold clamping device 14 has a fixed soybean rate 24.
A clamping cylinder 22 fixed to the mold clamping cylinder 22 , a fixed die plate 26 supported by the fixed die plate 24 , and a mold clamping cylinder 22
The movable mold 30t is attached to the piston 28 of the movable mold 30t and is connected to the movable die plate 32 for holding the movable mold 30t, as will be explained in detail later.

The product pedestal 18 is configured to come below the moving gold [30] to receive the product.

The movable frame 16 consists of a base 34 arranged in parallel at predetermined intervals, a rail 36 laid on the base 34, and a plurality of supporting legs 38 for supporting the base 34. As described above, the movable pedestal 16 is placed in a state where the injection device i10t is closed.

In FIG. 3, the product holder 18 includes an upper holder 39 and a lower holder 40, and an appropriate number of guide rolls 42 are interposed between the upper and lower holders and the pedestals 39 and 40 to form the upper holder. The table 39t is moved below the mold clamping device 12.14.

The upper pedestal 39 also has a plurality of rolls 44 and these rolls 44
An endless belt 46 surrounding the
(not shown) to transfer the molded product received from the mold clamping device to the product conveyor 20. In addition, the belt 46
It is possible to provide cushioning and protection for the molded product by pasting felt, fluffy cloth, or artificial grass on the surface of the molded product.

On the other hand, wheels 48 are attached to the lower part of the lower pedestal 40 and are rolled along the rails on the movable pedestal 16. Lower pedestal 4
0 is driven by a reversible transmission or a hydraulic or pneumatic cylinder (not shown), and also has an appropriate brake kill.
(not shown). In addition, the lower pedestal 4
A mechanical drive iron 1150 is provided at the end of the guide roll 42 to drive the guide roll 42 via a suitable chain or belt.

Note that an elevator 52'5r is provided below the lower pedestal 40, and a mold clamping table 'IjI! , 12.14 can be aligned.

Next, in order to operate the product take-out device of the molding machine according to the present invention configured as described above, the double-barrel #1 tightening iron 1112.
In the type of work that involves continuous forming using 14, one side is slightly tightened.
When the molding work in step 4 is completed and the mold is opened and the molded product 54 is attached to the movable mold 30 for 9 mm, the product holder 18 that was waiting in advance is shown in JI 2 diagram! fLRIi! As shown in , the receiver moves forward, cools and solidifies, picks up the molded product 54 that falls from the moving metal 50, and returns to its original position.

In other words, the movable frame 18 that was in the mold clamping position of shoulder 2 is 7
461, the molded product is transferred to the product conveyor 20 under the circumferential action of the belt 46, and waits for the mold clamping device 12 to complete the molding operation. This series of ejecting operations is performed in accordance with the operation of the mold clamping device, so the number of times the molded product is ejected per shot is large, and there is no problem even if the cycle time is shortened; in fact, it is possible to achieve high-speed injection. The more effectively the molded product can be removed.

According to the automatic product take-out device for an injection molding machine according to the present invention, precision molded products such as lenses and videos, or insert molded products, which are traditionally difficult to handle in an injection molding machine having a vertical clamping device, can be removed. These are convenient because they are easy to handle, and the mechanism is simple and easy to operate, and the manufacturing cost is low and economical.

The typical configuration of the automatic product take-out device for an injection molding machine according to the present invention has been described above, but it is of course possible to make various design changes without departing from the purpose and spirit of the present invention. A-ru.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the arrangement of an automatic product take-out device of an injection molding machine to which this invention is applied; Fig. 2 is a partially sectional front view of the automatic product take-out device shown in Fig. 1; The figure is a side view of the transfer #dJ mount. 10... Injection table [12, 14... Mold clamping device 16...
・Moving stand 18...Product pedestal 20...Product conveyor 22...Mold clamping cylinder 24...Fixed die plate 26...Fixed mold 28...Piston 3
0...Moving mold 62...Moving mold plate
34...jfi machine 36...
Shi-ru 38... Pillar 5919. Upper cradle 40...Lower cradle 42...Kite roll 44
...Roll 46...Endless belt 4B...Car
Wheel 50...mechanical drive Ilb device Chi2...rise
Disembarking machine 54... Molded product 101 '18 102

Claims (1)

[Claims] (1) In an injection molding machine having a vertical mold clamping device in which two or more movable molds advance and retreat in the vertical direction relative to a fixed mold below to open the molds, The product holder is configured to be automatically moved alternately between the locking pins according to the molding cycle and to be able to come between the movable mold and the fixed mold when the mold of each mold 1lfi device is opened, An apparatus for taking out products from injection molding moldings, further comprising a product conveyor disposed corresponding to the product pedestal. (21W) In the automatic product take-out device for an injection molding machine according to claim 1, a plurality of mold clamping devices are installed in parallel with the injection device, and a movable frame is extended in parallel with these mold clamping devices. A product holder is movably mounted on the movable stand and a mold W is installed.
An automatic injection molding machine that consists of rearranging the movable mold and fixed mold so that they move into the darkness when the mold is opened, and also facing the end of the product conveyor J from the end of the movable stand. Product removal device. (3) Scope of W Permissions In the automatic product take-out device for an injection molding machine described in paragraph 1, the product holder is an upper holder, a lower holder, and is interposed between these upper and lower holders. It consists of guide rolls that move the table between the movable mold and the fixed mold during the warm-up period of mold clamping 9 & direct, and the upper pedestal is configured as a conveyor type with a belt stretched across multiple rolls. Been IMIl
An automatic product unloading device for an injection molding machine, which is connected to device B, and on the other hand, a moving wheel is attached to the lower part of a lower pedestal, and this lower pedestal is connected laterally during driving position and braking. (4) Claims) In the automatic product take-out device for an injection molding machine according to paragraph 3, the automatic product take-out device for an injection molding machine comprises pasting felt, fluffy cloth or artificial turf on the belt surface of the upper pedestal. Product removal device. 6) Particular l1fS* Scope of Requirements In the automatic product take-out device for the injection molding machine described in paragraph A1, a lifting device shall be provided below the product pedestal.