JP3006499U - Chute for injection molding machine - Google Patents

Abstract

(57) [Summary] [Purpose] The molded product that has been removed from the mold can be reliably put into the chute, and the molded product that once entered the chute can be reliably moved to the ejection port, making it easy to clean the inside surface of the chute -Providing a chute for an injection molding machine that can be performed quickly and can prevent a molded product from adhering to the inner surface of the chute due to static electricity. A funnel-shaped chute A provided below an injection molding machine 1 for ejecting a molded product 3 separated from a mold 2 to a conveyor 4 or a container 5 below, and a side wall 6 forming the chute A, The cleaning window plate 8 is formed on a part of the side wall 6 so as to be openable and closable while being formed almost entirely of a metal plate having multi-pores 7. In addition, in accordance with this, the above-mentioned side walls 6
On the inner surface of the cleaning window plate 8, a coating film having good slipperiness and good conductivity is applied.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chute for an injection molding machine, and an improvement of a chute for ejecting a molded product molded by the injection molding machine and separated from the mold into a lower container via a conveyor or directly. It is related.

[0002]

[Prior art]

 A chute for an injection molding machine is similar to a conventional chute in that a flat plate made of metal such as stainless steel is formed into a funnel shape having a cross-section mouth-shaped with a large opening at the top and a small opening at the bottom. There is.

[0003]

[Problems to be solved by the device]

 However, the chute having the conventional structure has the following problems. (A) Generally, in injection molding machines, air is jetted from above the mold toward the molded product so that the molded product can be reliably separated from the mold. However, most of the air that has flowed into the chute is the chute. It hits the inner surface and reflects upwards. As a result, some of the molded products were blown out by the air reflected upwards and spilled outside without entering the chute through the inlet, or the molded products that once entered the chute through the inlet were also reflected upwards. It was sometimes blown up by the air and jumped out of the inlet and scattered. This is especially the case with lightweight, small molded parts.

(B) In addition, the inner surface of the chute is liable to adhere to dust due to static electricity, and the oil dripped during die replacement is likely to adhere to the chute. However, since there is a mold part of the injection molding machine above the chute and a container moving means such as a conveyor is provided below the chute, it is not possible to insert a hand into the inner surface of the chute for cleaning, and after that, The molded product put into the chute sometimes became defective due to dirt.

(C) Furthermore, the molded product that has entered the chute may adhere to the inner surface of the chute due to static electricity, and it may be difficult to move downwards and may become clogged. This is also particularly small and lightweight. The tendency was strong for molded products.

The present invention is intended to solve the problems of the chute used in the conventional injection molding machine. In other words, the purpose of the present invention is to minimize the reflection of the air ejected to separate the molded product from the mold upwards on the inner surface of the chute, and to reliably shoot the molded product separated from the mold. It can be put into the inside of the chute, the molded product that once entered the chute can be reliably moved to the outlet, the inside surface of the chute can be cleaned easily and quickly, and the molded product is statically chute. (EN) It is an object to provide a chute for an injection molding machine capable of preventing the chute from adhering to the inner surface.

[0007]

[Means for Solving the Problems]

 I The first of the chutes for an injection molding machine according to the present invention is a funnel-shaped chute that is provided below the injection molding machine 1 and that ejects the molded product 3 separated from the mold 2 to the conveyor 4 or the container 5 below. In A,

The side wall 6 forming the chute A is formed of a metal plate having multi-pores 7 almost entirely, and

A cleaning window plate 8 that can be opened and closed is provided on a part of the side wall 6.

II The second chute for an injection molding machine according to the present invention is a funnel which is provided below the injection molding machine 1 and throws the molded product 3 separated from the mold 2 to the conveyor 4 or the container 5 below. In the chute A,

The side wall 6 forming the chute A is formed of a metal plate having multi-pores 7 almost entirely, and an opening / closing cleaning window plate 8 is provided on a part of the side wall 6,

Further, the side wall 6 and the inner surface of the cleaning window plate 8 are coated with a coating film 9 having good sliding property and good conductivity.

In the above structure, the cleaning window plate 8 also forms a part of the side wall 6 and has the multi-pores 7. In the figure, 6a is a side wall portion between multiple pores, 10 is an inlet of chute A, 11 is an outlet, and 12 is an air.

[0014]

[Action]

 The chute A for an injection molding machine according to the present invention is provided below the mold 2 of the injection molding machine 1, and the molded product 3 separated from the mold 2 after molding is passed through the conveyor 4 below or directly. The container 5 into the container.

(A) In the above case, in order to reliably separate the molded product 3 from the mold 2 after molding, it has been customary to inject air 12 from above the mold 2 toward the molded product 3. ing. In the conventional chute, most of the air that has flowed into the chute hits the inner surface of the chute and is reflected upwards as well, causing some of the molded products to be blown up and spilled outside without entering the chute from the inlet. The molded product that entered the chute was also blown up by the reflected air, and it was likely to scatter from the charging port. This was especially the case with small and lightweight molded products.

However, in the chute A for an injection molding machine according to the present invention, the side walls 6 forming the chute A are provided with the multi-pores 7 almost entirely. The air 12 ejected from above by the multipores 7 flows into the chute A from the inlet 10, and then most of the air 12 passes through the multipores 7 of the side wall 6 and flows out downward. Therefore, the air 12 is less likely to be reflected upward.

Further, a part of the air 12 flowing into the chute A does not pass through the multipores 7 of the side wall 6 as it is, and the side wall portions 6 a between the multipores 7 and the inner surface of the multipores 7 are formed. Since the air 12 is diffusely reflected upon hitting a target object, the air 12 becomes a large number of fine diffuse reflections. Therefore, the large number of finely diffused air 12 collide with each other to cancel each other and also collide with the air 12 trying to pass through the multi-pore 7 as it is (see FIG. 4). A so-called neutralized state is formed with almost no reflection.

Therefore, the molded product 3 separated from the mold 2 of the injection molding machine 1 is directly charged into the chute 1 through the charging port 10, and the inside of the chute is reflected by the air reflected upward as in the conventional case. It does not go into the room and scatter. Further, the molded product 3 once entering the chute 1 from the charging port 10 is moved to the lower discharging port 11 as it is, and blown out from the charging port by the air reflected upward as in the conventional case. It disappears.

(B) On the other side, in the chute A for an injection molding machine according to the present invention, a cleaning window plate 8 is formed on a part of the side wall 6 so as to be opened and closed. Since there is a mold 2 on the upper part of the chute A and a conveyor 4 etc. on the lower part, it is difficult to clean with a conventional chute even if dirt such as dust or oil adheres to the inner surface. The molded product put into the chute was sometimes dirty.

However, in the chute A for injection molding machine according to the present invention, the cleaning window plate 8 is formed on a part of the side wall 6 so that it can be opened and closed, so that it can be opened when necessary (see FIG. 3). You can use your hand or a cleaning tool to clean the dirt on the inner surface at any time. Therefore, the molded product 3 put into the chute A will not be contaminated.

C) Further, in the second type of the chute for an injection molding machine according to the present invention, the coating film 9 having good slip property and good conductivity is provided on the inner surface of the side wall 6 and the cleaning window plate 8. (See FIG. 4). In the conventional chute, the molded product that entered the chute often adhered to the inner surface of the chute due to static electricity, and it was difficult for it to flow down and jammed.

However, the chute A for injection molding machine of the present invention eliminates static electricity by providing the coating film 9 having good slip property and good conductivity on the inner surface of the side wall 6 and the cleaning window plate 8. Therefore, the molded product 3 that has entered the chute A will not be stuck to the side wall 6 due to static electricity and clogged.

[0023]

【Example】

 1 to 4 show an embodiment of the chute for an injection molding machine according to the present invention.

The chute A is provided below the mold 2 of the injection molding machine 1 and above the conveyor 4, and its overall shape resembles that of a conventional general chute and has a large opening at the top. The inlet 10 has a funnel shape with an outlet 11 having a small opening at the bottom.

The chute A has a mouth-shaped cross section here, and each of the four side walls 6 forming the chute A is formed of a flat metal plate having multi-pores 7 almost entirely. Here, for example, a stainless steel plate is used as the metal flat plate, but the metal flat plate is not limited thereto. The multi-pores 7 formed on substantially the entire surface of each side wall 6 may be formed by, for example, punching or etching. Air 12 passes through the holes well, but the molded product 3 to be introduced into the chute A is It is so small that it does not pass.

An opening is formed in a part of the side wall 6 of the chute A, and a cleaning window plate 8 is provided with a hinge 13 so that the opening can be opened and closed. Plunger-shaped locking tool 14 provided locks part of the side wall 6 so that it can be easily opened upward when cleaning is required. The cleaning window plate 8 also has the multi-pores 7 formed therein.

The above-mentioned structure is common to the first and second chutes for injection molding machines according to the present invention, but in the second one, the chutes for the side wall 6 and the cleaning window plate 8 are formed. A coating film 9 that has good sliding properties and good conductivity is formed. The coating film 9 may be formed by coating, for example, a Teflon-based resin mixed with carbon, but is not limited to this.

[0028]

[Effect of device]

 As is apparent from the above, the injection molding machine chute according to the present invention can reliably insert the molded product separated from the mold into the chute through the charging port, and once enters the chute through the charging port. The molded product can be reliably moved toward the outlet, and the inner surface of the chute can be cleaned easily and quickly, and the molded product can be prevented from adhering to the inner surface of the chute due to static electricity. .

That is, in the conventional chute of this type, the air jetted to separate the molded product from the mold hits the inner surface of the chute and is reflected upward, so that a part of the molded product is blown up and thrown in. Occasionally, a product that had not entered the chute through the mouth and spilled outside, or a molded product that once entered the chute through the loading port was similarly blown up and jumped out of the loading port. Also, since there is not enough space above and below the chute, it is difficult to insert a hand or a cleaning tool, and it is difficult to clean the chute even if it becomes dirty, or the molded product adheres to the chute due to static electricity. And then it got stuck.

However, in the chute for an injection molding machine according to the present invention, the molded product separated from the mold is different from the conventional one because the side wall and the window plate for cleaning are formed with multipores on almost the entire surface. No longer being blown up by. Therefore, the molded product that has been separated from the mold can be reliably put into the chute from the input port, and the molded product that once entered the chute from the input port can be reliably moved to the lower ejection port and transferred to the conveyor or container. Can be thrown out.

Further, by providing a cleaning window plate on a part of the side wall of the chute, if the inner surface of the chute becomes dirty, open it and insert a hand from there to easily remove the dirt. You can Therefore, unlike the prior art, it is possible to prevent the stain on the inner surface from being attached to the molded product.

Further, in the case where the inner side surface of the side wall of the chute is coated with a coating film having good sliding property and good conductivity, the inner side surface has conductivity. Therefore, unlike conventional products, it is possible to prevent the molded product from sticking to the inner surface of the chute due to static electricity, and to prevent the molded product from becoming clogged.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of an embodiment of a chute for an injection molding machine according to the present invention.

FIG. 2 is a perspective view from below of the chute for an injection molding machine shown in FIG.

FIG. 3 is a perspective view from below of the chute for the injection molding machine shown in FIG. 2 with the cleaning window plate opened.

4 is a partially enlarged vertical sectional view of a side wall of the chute for an injection molding machine shown in FIG.

[Explanation of symbols]

A-Chute 1-Injection molding machine 2-Mold 3-Molded product 4-Conveyor 5-Container 6-Sidewall 6a-Sidewall portion 7-Multi-pores 8-Cleaning window 9-Coating film 10-Inlet 11- Outlet 12-Air 13-
Hinge 14-Lock

Claims (2)

[Scope of utility model registration request] 1. A funnel-shaped chute A which is provided below an injection molding machine 1 and which ejects a molded product 3 separated from a mold 2 to a conveyor 4 or a container 5 below, and a side wall 6 forming the chute A. Is formed of a metal plate having multi-holes 7 almost entirely, and a cleaning window plate 8 that can be opened and closed is formed on a part of the side wall 6 for an injection molding machine. . 2. A funnel-shaped chute A which is provided below an injection molding machine 1 and which ejects a molded product 3 separated from a mold 2 to a conveyor 4 or a container 5 below, and a side wall 6 which forms the chute A. Is formed of a metal plate having multi-holes 7 almost entirely, and an opening / closing cleaning window plate 8 is formed on a part of the side wall 6, and the side wall 6 and the cleaning window plate 8 are A chute for an injection molding machine, characterized in that a coating film 9 having good sliding property and good conductivity is provided on the inner surface.