JPH0540988Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a molding device that is preferably installed in an injection molding machine to receive a molded product molded by the injection molding machine and transfer it to a place for the next process. This relates to a chute for taking out items.

[Prior art and its problems] This type of injection molding machine has a plurality of fixed plates and end plates that are installed parallel to each other at a predetermined distance in the length direction on an oblong frame that is installed horizontally. A movable platen is connected between the two by tie bars, and a movable plate is slidably supported by the tie bars and connected to the end plate via a toggle device. a mold clamping device comprising a mold clamping cylinder that moves the movable platen toward and away from the fixed platen;
A so-called horizontal injection molding machine is generally provided with an injection device disposed on the opposite side of the fixed platen to the side on which the movable platen is disposed.

According to the above injection molding machine, the mold is arranged between the movable plate and the fixed plate with the movable plate retreated toward the end plate, and then the movable plate is moved to the fixed plate by the mold clamping cylinder and the toggle device. After moving the mold to the side and clamping the mold, the nozzle of the injection device is aligned with the injection hole of the fixed plate, and the molten material in the heating cylinder is injected into the mold, and the material cools as a molded product. Once solidified, the movable platen is moved back toward the end plate to open the mold, and an ejector mechanism provided on the movable platen ejects and removes the molded product from the mold.

In order to transfer the molded product released from the mold to the next process, an injection molding machine is usually provided with a take-out chute that guides the molded product in the direction of transfer. This chute is generally a chute that guides the molded product to the operation side of the injection molding machine, which is one side of the frame, or the non-operation side, which is the opposite side, and further to the end plate side. With the advent of open frames, chute to guide the molded product to the end plate side has also been provided.

However, the angle of inclination of the chute that guides the molded product to the end plate side is often fixed. It is desired to devise a chute whose inclination angle can be changed according to the height.

[Means for Solving the Problems] The present invention has been made in view of the above circumstances, and includes a support plate that is attached to a frame on which an injection molding machine is installed and extends downward from the frame, and one end of which is attached to the frame. It consists of a chute body with a U-shaped cross section, consisting of a side plate and a bottom plate, which extend below the end plate and intersect the falling locus of the molded product that is locked and released by the ejector mechanism and falls. The side plate is supported by the frame via a locking piece so as to be movable in an inclination angle with the other end being a free end, and the side plate is located at any position of a positioning hole provided vertically in the support plate. It is characterized by being supported by being locked to.

[Function] According to the molded product ejecting chute of the injection molding machine of the present invention, by locking the side plate in any position of the positioning hole of the support plate, the chute body receives the molded product and guides it below the end plate. Since the angle of inclination can be adjusted in stages, the angle of inclination of the chute body can be adjusted according to the size (height) of the transport means such as the box or conveyor that receives the molded product from the chute and transfers it to the next process. This allows the molded product to be reliably transferred to the transfer means, and also eliminates the need to prepare several types of transfer means to match the injection molding machine.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

Reference numeral 1 in the figure indicates a mold clamping device for a horizontal injection molding machine according to the present invention.

This mold clamping device 1 is installed on an oblong frame 2 installed horizontally, and includes a fixed plate 3 fixed to this frame 2 and having an injection hole 3a for molten injection material formed in the center, and this fixed plate 3. An end plate 4 installed parallel to the board 3 at a predetermined distance and movable along the length of the frame 2, and the end plate 4 and the fixed board 3.
A tie bar 5 spanned over the four corners of A double toggle device (moving mechanism) that slides the movable platen 6 along the tie bar 5 using the end plate 4 as a fulcrum when the rod 7a of the mold clamping cylinder 7 is expanded or contracted. 8 and an ejector mechanism 9 provided on the movable platen 6.

Although not shown, on the frame 2 on the opposite side of the fixed platen 3 from the side on which the movable platen 6 is arranged,
The injection device consists of a heating cylinder with a nozzle at its tip, a screw inserted into the heating cylinder, a hopper that supplies material into the heating cylinder, and an injection cylinder that drives the screw to inject the molten material from the nozzle. is set up.

Double toggle device 8 in the mold clamping device 1
The first link 11 is connected to the top and bottom of the end plate 4 via the first pin 10, and
A second link 14 is connected to the link 11 of the movable plate 6 via an intermediate pin 12, and a second link 14 is connected via a second pin 13 to a bracket 6a that projects vertically on the back surface of the movable platen 6, and a mold clamping cylinder. A crosshead 15 is fixed to the rod 7a of No. 7, and a pin 1 is attached to this crosshead 15 and the first link 11.
6 and 16.

The ejector mechanism 9 also includes an ejector cylinder 18 fixed to the movable platen 6, an ejector plate 19 connected to the rod 18a of the ejector cylinder 18, and the ejector plate 1.
9 and the rod 18a of the ejector cylinder 18
It is equipped with a plurality of ejector pins 20 connected to.

To explain the operation of the injection molding machine with the above configuration, as shown in FIG.
The half-split molds 21a, 2 are moved back to the side.
Among the molds 21 consisting of 1b, one mold 21a in which the cavity of the molded product P is formed is fixed to the movable platen 6, the other mold 21b is fixed to the fixed platen 3, and the movable platen 6 is fixed to the fixed platen 3. The mold 21 is clamped by moving it to the side.

Next, after aligning the nozzle at the tip of the heating cylinder in the injection unit with the injection hole 3a of the fixed platen 3, the molten material is injected into the mold 21, and when the material cools and solidifies as the molded product P, it is inside together with the movable platen 6. The mold 21a in which the molded product P is molded is moved back toward the end plate 4, and the mold 21 is opened.

After this, the rod 18 of the ejector cylinder 18 in the ejector mechanism 9 provided on the movable platen 6 is
By extending a and protruding the ejector pin 20 from the surface of the movable platen 6, the molded product P in the mold 21a is ejected and separated from the mold 21a.

The above operation is repeated and molded products P are molded one after another.

By the way, the frame 2 is a combination of a horizontal pair of left and right upper frames 2a and lower frames 2b, and a plurality of vertical frames 2c extending between them, and as described above, the frame 2 is separated from the mold 21a by the ejector mechanism 9. In the frame 2 in the falling direction (falling trajectory) of the molded product P that is falling,
The upper frame 2a and the L-shaped angle 2 on the end plate 4 side spanned between the upper frame 2a.
2 and a locking plate 23 on the fixed platen 3 side.

A chute 25 for receiving the falling molded product P and transporting it below the end plate 4 for taking out the molded product P according to the present invention is attached below the drop port 24. This chute 25 will be explained below. .

The chute 25 includes a pair of left and right right triangular support plates 26 and a chute body 27 supported by the support plates 26.

Each support plate 26 is connected to the drop port 24 along the vertical direction with the long side parallel to the upper frame 2a and the short side facing the end plate 4 side. L is placed on the inner side of the
It is screwed to the angle 22 via a letter-shaped stay 28. On the short side of each support plate 26, a plurality of (in this embodiment, three
A positioning hole 29 consisting of three holes 29a, 29b, and 29c is formed.

On the other hand, the chute main body 27 includes a pair of left and right side plates 30 in the shape of an elongated substantially parallelogram, and a bottom plate 3 in the shape of a rectangle.
1 and has a U-shaped cross section.

A long hole 30a along the length of each side plate 30 is formed in the upper part of the center in the length direction, and a long hole 32a that coincides with the long hole 30a is formed on the inner surface of each side plate 30, which is a surface facing each other. Rectangular flat washers 32 are fixed respectively.

The bottom plate 31 has the locking plate 23 at its rear end.
A bent locking piece 31a is formed to be locked to the
Moreover, on the back side, two reinforcing plates 31b are attached to the bottom plate 3.
1 along the length direction.

This chute body 27 is attached to the locking piece 31.
a is hooked and locked on the locking plate 23, and is fitted between both support plates 26, and the matching elongated holes 30a and 32a of the flat washer 32 and the chute body 27 are connected to the support plate. 26
A screw 33 that is aligned with any one of the positioning holes 29 (one of the holes 29a, 29b, and 29c) formed in the hole 29 and inserted into the long holes 30a and 32a is fastened with a nut 34. Thus, it is supported by the support plate 26 and the locking plate 23. That is, the chute main body 27 extends in the longitudinal direction of the frame 2 below the horizontally long frame 2, and the locking piece 31a provided on one end side of the chute body 27 is supported by the upper frame 2a, thereby freeing the other end side. It is supported as an end so that its inclination angle can be changed, and its inclination angle is adjusted in stages (in this case, three stages) by aligning the elongated hole 30a of the side plate 30 with one of the holes 29a to 29c of the support plate 26. It is becoming more and more like this.

In this state, the chute body 27 of the chute 25
The bottom plate 31 intersects with the falling locus of the molded product P falling from the mold 21a, and the end plate 4
extends below. And the chute body 27
In this case, the elongated hole 30a of the side plate 30 is aligned with the hole 29a to have a gentle inclination angle, and the long hole 30a of the side plate 30 is aligned with the hole 29c to have a steep inclination angle.
The inclination angle can be adjusted in three stages, such as when adjusting to 9b, the inclination angle will be in the middle.

According to the chute 25 having the above configuration, the molded product P that is separated from the mold 21a by the ejector mechanism 9 and falls is received by the chute main body 27, and the molded product P is guided toward the end plate 4 and below. Transfer to. And the molded product P is
It is transferred to a box installed below the tip of the chute main body 27 or to a means of transporting it to the next process, such as a conveyor.

Then, the chute main body 2 is
By adjusting the inclination angle of the chute 7, the molded product P can be reliably transferred to the transfer means by the chute 25. This has the advantage that it is no longer necessary to prepare several types of transfer means to match the injection molding machine.

Note that the chute 25 of this embodiment extends in the longitudinal direction of the horizontally long frame 2 below the injection molding machine and does not protrude outward from the outer shape, so that it does not lead to an increase in the size of the injection molding machine itself. In addition, it has the advantage that it does not become an obstacle when a large number of injection molding machines are laid out on the floor of a factory or the like.

[Effects of the invention] As explained above, according to the molded product take-out chute of the injection molding machine of the present invention, by locking the side plate in any position of the positioning hole of the support plate, the molded product can be received and Since the angle of inclination of the chute body leading downward from the end plate can be adjusted in stages, the chute can be adjusted to suit the size (height) of the box or conveyor or other transport means that receives the molded product from the chute and transfers it to the next process. By adjusting the inclination angle of the main body, the molded product can be reliably transferred to the transfer means, and as a result, there is no need to prepare several types of transfer means to match the injection molding machine. .

[Brief explanation of the drawing]

1 and 2 are views showing one embodiment of the present invention, in which FIG. 1 is a side view of the mold clamping device of an injection molding machine and the attached chute, and FIG. 2 is a direction in the direction shown in FIG. 1. It is an arrow view. 2... Frame, 3... Fixed plate, 4... End plate, 6... Moving plate, 8... Double torge device (moving mechanism), 9... Ejector mechanism, 21...
... Mold, 25 ... Chute, 26 ... Support plate, 27 ... Chute body, 29 ... Positioning hole, 30 ... Side plate, 31 ... Bottom plate, 31a ... Locking piece, P ... Molded product.

Claims (1)

[Claim for Utility Model Registration] A movable plate that can be moved toward and away from the fixed plate by a moving mechanism provided on the end plate is arranged between a fixed plate and an end plate that are installed parallel to each other on a horizontal frame. By moving this movable plate, the mold installed between the movable plate and the fixed plate is clamped and opened, and when the mold is opened, the ejector mechanism provided on the movable plate stops the injection molding inside the mold. A chute for taking out molded products that is installed in an injection molding machine from which products are detached and dropped, and includes a support plate that is attached to the frame and extends downward from the frame, and a support plate that is fixed to the frame at one end and that takes out the molded products. It consists of a chute body having a U-shaped cross section and consisting of a side plate and a bottom plate extending downward from the end plate intersecting the falling trajectory, and one end of the chute body is supported by the frame via a locking piece. The support plate is supported such that it can be tilted at an angle with the other end being a free end, and the side plate is supported by being locked at any position of a positioning hole provided vertically in the support plate. A chute for taking out molded products from an injection molding machine.