JPH03355Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a machine used for injection molding of synthetic resin.

(Prior Art) In an injection molding machine in which an injection device and a mold clamping device are provided on the machine stand next to the machine stand, a recess for taking out a molded product is provided in the upper part of the machine stand below the mold clamping device.

This recess is provided within the mold opening/closing distance, and a shooter, belt conveyor, etc. are arranged within the recess so that the molded product can be taken out.

(Problem to be solved by the invention) In an injection molding machine with the above structure, when replacing the mold from the bottom of the mold clamping device, if there is a shooter, the shooter becomes an obstacle, causing the mold to be replaced. Therefore, the shooter is made detachable so that it can be removed when replacing the mold.

This kind of thing is also done when replacing the shooter with a belt conveyor, etc. Most of the removed shooters are often left in the corner of the work place, and powder is lost due to poor management. There are things to do.

(Means for solving the problem) This invention was devised to solve the above-mentioned problem with the shooter in an injection molding machine, and its purpose is to Needless to say, the object of the present invention is to provide an injection molding machine with a new structure in which it is not necessary to remove the shooter from the bottom of the mold clamping device even when replacing it with other ejecting means such as a belt conveyor.

This invention for the above purpose extends the recess provided at the top of the machine base to the back of the mold clamping plate of the mold clamping device, and allows the shooter to be moved freely from the mold opening/closing part to the rear of the mold clamping plate within the recess. When the shooter is not needed, the shooter can be moved to the back of the mold clamping plate without removing it from the recess, and the mold can be replaced from below the mold clamping device.

Further, this invention will be explained in detail using illustrated examples.

(Example) In the figure, 1 is the mold clamping device, and the injection device 2 and the machine stand 3
It is placed horizontally on top of the.

At the upper part of the machine base on the lower side of this mold clamping device 1, there is a recess 4 for taking out the molded product, which is open on the upper side and left and right sides.
It is extended from the mold opening/closing part to the back of the mold clamping plate 7 which is supported by tie bars 6, 6 and reciprocates between the pair of fixed plates 5, 5.

Inside this recess 4, a pair of guide rails 8, 8 provided over the lower portions of the fixed plates 5, 5 are provided.
Shooter 9 installed so that it can slide freely through the upper part
However, the horizontal movement cylinder 1 fixed on the machine side
It is connected to the piston rod 11 of 0.

12 is a cylinder for raising and lowering the mold installed inside the machine,
It is fixed vertically below the mold opening/closing part side of the recess 4. The tip of the piston rod 13 of the cylinder 12 for raising and lowering the mold is formed so that a mold 14 can be placed thereon, and the mold 14 can be raised and lowered by expanding and contracting the piston rod 13.

However, in the injection molding machine with the above structure, the mold 1
When the shooter 9 becomes an obstacle when exchanging parts 4, etc., move the shooter 9 using the moving cylinder 10 from the position of the mold opening/closing part shown by the solid line to the back of the mold clamping plate 7 shown by the chain line. , the lower side of the mold opening/closing part can be opened.

Also, after replacing the mold, the moving cylinder 10
The shutter 9 can be returned to the lower side of the mold opening/closing part by the operation of , and can be used to take out the molded product.

(Effects of the invention) As described above, this invention extends the recess 4 provided at the top of the machine base 3 to the back of the mold clamping plate 7 of the mold clamping device 1, and forms the recess 4. Shooter 9 inside
By attaching the shutter 9 movably and moving the shooter 9 to the back of the mold clamping plate, it can be removed from the bottom of the mold opening/closing part, making it easy to replace the mold even if the shooter is installed. This can be done from the bottom of the mold clamping device. Furthermore, not only can the shooter be replaced with a belt conveyor, but there is no need to remove the shooter, which saves time and effort during replacement, and there is no risk of losing the shooter.

[Brief explanation of drawings]

The drawings show one embodiment of the injection molding machine according to the invention, with FIG. 1 being a schematic side view and FIG. 2 being a longitudinal cross-sectional view of the mold opening/closing portion. 1... Mold clamping device, 2... Injection device, 3... Machine base, 4... Recess, 7... Mold clamping plate, 8... Guide rail, 9... Shooter, 10... Moving cylinder, 11... Piston rod.

Claims (1)

[Scope of utility model registration request] A mold clamping device is installed on the machine stand along with an injection device on the side.
In an injection molding machine that has a recess for taking out the molded product at the top of the machine table below the mold opening and closing, the recess is extended to the back of the mold clamping plate of the mold clamping device, and a shooter is placed in the recess for opening and closing the mold. An injection molding machine characterized by being movably mounted from the mold clamping plate to the rear of the mold clamping plate.