JPH0257764B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molded product shooter, and more particularly, it is capable of separating molded products into good products and defective products with a simple mechanism, and furthermore, it is possible to separate the accumulation of defective products from the products. The present invention relates to a molded product shooter that facilitates post-processing by combining it with a runner section and the like.

Conventionally, in order to sort molded products into good and defective products, if the molded products are automatically taken out, the defective products are transported to a predetermined position based on a defective product generation signal from the molding machine.

However, if the molded product take-out device is provided with a defective product sorting mechanism, this take-out device becomes complicated and expensive, and there has been a desire to develop a simple device for sorting good products and defective products.

The present invention has been made in view of the above circumstances, and its purpose is to be able to sort non-defective products and defective products with a simple mechanism, and to collect defective products and runner parts together. It is an object of the present invention to provide a molded product shooter which facilitates post-processing for recycling and which is particularly suitable for use in molding where the product is taken out of the mold with the gate cut.

The feature is that in a molding machine where the product and runner etc. are separated and taken out when the mold is opened, a product guide section is provided below the mold to guide the product, and a runner etc. separated from the product is installed at the bottom of the mold. A shutter that is adjacent to a guide part that guides the product through a rigid partition plate, and a cutout part formed by cutting out a part of the partition plate has a partition plate position and a position that obliquely blocks the product guide part. A shutter whose lower end is pivoted and rotates between the shutter and the shutter is provided, and drive means is provided for rotating the shutter to a position where it closes the product guide when the product is a defective product. It is in.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 shows a side view of a molding machine equipped with a molded product shutter according to the present invention. The molding machine shown in Fig. 1 is an injection molding machine described in Japanese Patent Application Laid-Open No. 59-81150, etc., and is equipped with a so-called 3-plate type mold. Thus, the product 2 and the runner 3 can be separated and taken out when the mold is opened.

In FIG. 1, reference numeral 5 denotes a shooter according to the present invention arranged below the mold.

This shooter 5 has a guide section 6 that guides the product 2.
and a guide part 7 that guides the runner part 3, and both guide parts 6 and 7 are connected to a rigid partition plate 8.
It is divided and formed by

Reference numeral 9 denotes a shutter, which is disposed in a notch cut out to a predetermined depth in the opening of the shutter 5 in the partition plate 8, and is pivoted at its lower end so as to be rotatable.

Moreover, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and 10 is an air cylinder. An air cylinder 10 is fixed to the back surface of the shutter 9, and drives the shutter 9 to rotate between a partition plate position and a position obliquely blocking the guide portion 6.
That is, upon receiving a defective product signal from the molding machine 1, the air cylinder 10 rotates the shutter 9 to a position that blocks the guide section 6, and guides the falling defective product to the guide section 7.

11 is a container that stores product 2;
is a container for storing the runner part 3 and defective products, and is also arranged below the discharge port of the shooter 5. In addition, each container 11,12 may use conveyance means, such as a belt conveyor.

In this configuration, when the molding machine 1 is operating normally and no defective products are produced, the shutter 9 is at the partition plate 8 position, and the product 2 falls inside the guide part 6 and enters the container 11. The runner part 3 falls inside the guide part 7 and is stored in the container 12. When the molding conditions of the molding machine 1 are out of the non-defective product setting range, the cylinder 10 operates upon receiving a defective product generation signal from the molding machine 1 and rotates the shutter 9 to a position that blocks the guide portion 6, and the defective product is removed from the shutter 9. The container is guided by the container 12, falls down the guide part 7, and is stored in the container 12. After this defective product passes through the shutter 9, the shutter 9 is returned to the partition plate position by the cylinder 10.

Note that the cylinder 10 in the above-described embodiment may be other driving means such as a motor.

In this manner, according to the present invention, the shutter for guiding the product and the runner section is formed into an integral structure with a partition plate interposed therebetween, and the shutter for blocking the product guide section is provided in a rotatable manner. Since defective products are stored together with the runner part, it is possible to separate good products from defective products using a simple device, and post-processing for recycling the runner part and defective products is easy. Even when an automatic item take-out device is used, it is effective in that it is only necessary to make the take-out device perform a simple operation.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

[Brief explanation of drawings]

FIG. 1 is a side view of a molding machine in which a molded product shooter according to the present invention is partially cut away, and FIG. 2 is a sectional view taken along line A-A. 1... Injection molding machine, 2... Product, 3... Runner part, 4... Mold, 5... Shooter, 6, 7...
Guide section, 8... Partition plate, 9... Shutter, 10...
...Air cylinder, 11,12...Container.

Claims (1)

[Scope of Claims] 1. In a molding machine in which a product and a runner, etc. are separated and taken out when the mold is opened, a product guide section provided below the mold to guide the product and separated from the product. A shooter that is adjacent to a guide section for guiding a runner, etc. via a rigid partition plate, and the partition plate position and the product guide section are arranged diagonally in a notch formed by cutting out a part of the partition plate. a shutter whose lower end is pivoted to rotate between a position where the product guide part is closed, and a drive means which rotates the shutter to a position where the product guide part is closed when the product is a defective product; A molded product shooter characterized by: