JP2528330B2 - Molded product take-out device for molding machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product take-out device for a molding machine for synthetic resin materials, and more particularly, it relates to the movement of a movable mold plate when the mold is opened and closed. The present invention relates to a molded product takeout device that can automatically take out a molded product.

<Prior Art> Conventionally, an industrial robot has been widely used as a molded product take-out device for a molding machine, and in the molded product take-out device by the robot, a robot arm is horizontally placed between molds opened. In this method, the molded product was grasped and taken out from the mold by moving it in the vertical and vertical directions for insertion.

<Problems to be Solved by the Invention> In the above-mentioned conventional technique, since the robot arm is moved horizontally and vertically to move in and out between the molds,
An independent drive source for the movement is required, a complicated control device is required, and the molded product cannot be taken out unless the mold is completely opened. There was a problem that the process of taking out the product was different and the loss of working time was large.

<Means for Solving the Problems> In view of the problems such as the complicated movement of the robot arm due to the structural restriction of the molded product takeout device based on the above-mentioned conventional technique, the present invention mounts a chuck for gripping the molded product. A pair of parallel rings is provided between the supporting plate and the mounting bracket fixed to the movable mold plate, and a swing arm is integrally provided on one of the links, and one end of the swing arm has a smooth end. The problem is solved by pivotally attaching the tip of the operating rod pivotally supported by the cormorant.

<Operation> In the configuration of the present invention, the mounting bracket fixed to the movable mold plate moves together with the movement of the movable mold plate when the mold is opened, and accordingly, the operating rod is connected to the machine frame. The parallel link mechanism swings by pivoting about the pivot axis and further swinging the swinging arm, and the chuck support plate moves vertically and circularly to enter between the molds opened. After the chuck is positioned on the mold from which the molded product is to be taken out and then the molded product is gripped by the chuck, the mounting bracket of the movable mold plate moves in conjunction with the mold making operation of the movable mold plate. The swinging arm is swung by the accompanying rotation of the operating rod, and the chuck support plate is retracted from between the dies via the parallel link mechanism to take out the molded product.

Embodiment Next, an embodiment of the present invention will be described below with reference to the drawings.

1 and 2, a mold clamping cylinder 2 is attached to a machine frame 1, and a piston rod 3 of the mold clamping cylinder 2 is connected to a movable mold plate 5 which is guided by a guide post 4 to move up and down. A movable die 6 is attached to the template 5.
A fixed mold plate 7 is attached to the upper part of the guide post 4, and a fixed mold 8 is mounted on the fixed mold plate 7 so as to face the movable mold 6.

A mounting bracket 10 is fixed to the movable template 5, and a pair of base ends of a pair of operating links 11 and a supporting link 12 parallel to the operating links 11 are pivotally attached to the bracket 10 by pins 13 and 14. The ends of the links 11 and 12 are pivotally attached to the chuck support plate 15 by pins 16 and 17, respectively.
The mounting bracket 10, the operation link 12, and the chuck support plate 15 constitute a parallel link mechanism 18.
The chuck support plate 15 has a chuck opening / closing air cylinder 19
And, the air check 20 which is driven to open and close by this is attached.

At the base end of the operation link 11, the swing arm 21
Are integrally connected to each other and extend toward the support link 12 side substantially orthogonal to the longitudinal direction of the link 11, and the operating rod is provided at the tip thereof.
22 is pivoted by pin 23. A base end of the operating rod 22 is pivotally supported by a support shaft 25 on a support piece 24 on the machine frame 1. The operating rod 22 is made of a screw rod or the like so that its length can be adjusted. Incidentally, 28 is a molded product molded in the movable mold 6, 28 is its sprue, and the chuck 20 holds the sprue 28 and takes out the molded product 27. Also, 30 is a molded product chute attached to the mounting bracket 10.

The operation of the above configuration will be described with reference to FIGS. 2 to 4.

FIG. 2 shows the mold opening end state, FIG. 3 shows the mold closing step, and FIG. 3 is an operation explanatory view showing the mold closing end state, which will be explained from the mold opening end point in FIG. .

In FIG. 2, the chuck 20 that has entered above the movable mold 6 in the mold opened state is driven to be closed by the opening / closing air cylinder 19 and grips the sprue 28 of the molded product 27. When the movable mold plate 5 starts to move up by moving to the mold closing step, the mounting bracket 10 moves up together with the movable plate 5, and the operating rod 22
Rotates about the pivot shaft 25 at one end in the clockwise direction, and swings the swing arm 21 around the pin 13 in the clockwise direction. Due to this swing, the operating link 11 swings clockwise, and the entire parallel link mechanism 18 swings clockwise.
While 15 keeps the horizontal state, ascending while moving upward, the chuck 20 holding the molded product 27 withdraws from between the molds 6 and 8 as shown in FIG. When the movable mold plate 5 is continuously raised, as shown in FIG. 4, the operating rod 22 is rotated counterclockwise, and the parallel link mechanism 18 itself further swings clockwise to support the chuck. The plate 15 moves slightly downward while retracting further, and when the mold closing is completed, the chuck 20
Is located above the molded product chute 30. Here, the chuck 20 is opened by the opening / closing air cylinder 19, the molded product 27 is separated, and this is recovered via the molded product chute 30.

Further, in the mold opening step after molding, the operation reverse to the above-mentioned operation is carried out to reach the state of FIG. 2 through FIGS. 4 to 3.

That is, in the state shown in FIG. 4, the chuck 20 is opened and the molded product 27 is not gripped, and when the mold opening is started and the movable mold plate 5 is lowered and the bracket 10 is lowered, the operating rod is lowered.
This time, 22 turns once counterclockwise and then turns clockwise, and the parallel link mechanism 18 itself swings counterclockwise. With such a series of operations, the die 6, which is being opened by moving in an arc shape while the chuck support plate 15 remains horizontal,
At the end of the mold opening, the chuck 20 is positioned directly above the movable mold 6 and the next molded product is reached.
It is provided for the operation of gripping 27.

In the state shown in FIG. 2, when the movable die 6 is replaced and the chuck 20 and the molded product 27 are displaced from each other, the length of the operating rod 22 is adjusted to adjust the position of the parallel link mechanism 18. The relative position between the chuck 20 and the movable die 6 can be adjusted by changing the.

<Effect> As described above, according to the present invention, the chuck support plate and the mounting bracket fixed to the movable mold plate are pivotally connected by a pair of operation links and support links parallel to the operation links, and the operation is performed. By providing an integral swinging arm on the link and connecting the swinging arm and the machine frame to each other by means of an operating rod, the chuck is interlocked with the movement of the movable die plate of the die opening and closing die and the chuck is made into a die. Since the molded product can be automatically taken out by moving in and out between them, the effect that neither a dedicated drive source for moving the chuck nor a complicated control device for robot control is required is added. As a result, the process of taking out the molded product that allows the chuck to enter during mold opening and exit during mold closing is performed in duplicate with the mold opening / closing process, so there is no loss of work time for taking out molded products. Can shorten the molding cycle Effect can be Sose that is.

In addition, since the relative position between the chuck and the movable die can be easily adjusted by adjusting the length of the operating rod, there is an advantage that die replacement can be dealt with quickly and easily.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view, and FIGS. 2, 3, and 4 are operation explanatory views. 1 …… Machine frame, 5 …… Movable die plate 6 …… Movable die, 10 …… Mounting bracket 11 …… Operating link, 12 …… Support link 15 …… Chuck support plate, 18 …… Parallel link mechanism 20 …… Chuck, 27 …… Molded product 30 …… Molded product chute

Claims (2)

(57) [Claims] 1. A pair of operating links on a chuck support plate 15.
Both ends of the support link 12 parallel to 11 are pivotally attached, and the base ends of the links 11 and 12 are pivotally attached to the mounting bracket 10 fixed to the movable template 5 to form a parallel link mechanism 18. , A swing arm 21 is integrally connected to the base end of the operation link 11,
An operating rod 22 is pivotally attached to the tip of the swing arm 21, and
A molded product take-out device for a molding machine, wherein a base end of the operating rod 22 is pivotally supported on the machine frame 1. 2. The molding product take-out device for a molding machine according to claim 1, wherein the length of the operating rod 22 is adjustable.