JPH05329579A - Mold molding equipment - Google Patents

Abstract

PURPOSE:To provide the mold molding equipment by which a mold can be taken out of a die without cracking or damaging it, and also, the die can be changed easily. CONSTITUTION:The equipment is provided with a die opening/closing device 2 for opening and closing a split type die 10 attached in turnable forward and backward by 90 degrees in the vertical surface, a driving device 18 for driving to rotate the die opening/closing device 2, and a sand blowing-in device 28 for blowing in molding sand from the upper face side of a split position of the die 10 which is turned by 90 degrees through the die opening/closing device 2 and is in a closed vertically split state. Also, this equipment is provided with mold push-out devices 11a, 11b which are installed in the die opening/closing device 2 and push a mold out of the die 10, and a mold taking-out device 30 provided with a mold loading member 33 for receiving a mold pushed out by push-out pins 14 and 17 of the mold push-out devices 11a, 11b when the die 10 becomes a horizontally split state by being turned by 90 degrees through the die opening/closing device 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding machine for molding a molding sand containing a binder, and an improvement of equipment for easily removing the mold from the mold and exchanging the mold.

[0002]

2. Description of the Related Art Conventionally, as one of the facilities of this type, a sand blowing device is arranged above a mold opening / closing device for opening / closing a so-called vertical split mold, and a mold is taken out below the mold opening / closing device. Provide a belt conveyor for the mold, blow the molding sand into the cavity from the upper side of the mold dividing position by the sand blowing device, and take out the mold by attaching the mold to one mold piece. After opening the mold, the mold piece to which the mold is attached is directed downward and the mold is extruded onto a belt conveyor.

[0003]

However, in the conventional equipment thus constructed, the mold is pushed onto the belt conveyor due to the large drop between the downwardly facing mold piece and the belt conveyor. Sometimes there were problems such as cracking and damage. In addition, when exchanging the mold, it is necessary to connect the mold pieces to each other so that the mold does not open in order to attach or detach the mold to the mold opening / closing device in a vertically split state, and After mounting the mold, it is necessary to center the mold opening / closing device, the mold, and the mold itself.
There was also a problem that changing the mold was very troublesome. The present invention has been made to solve the above problems,
It is an object of the present invention to provide a mold making facility in which a mold can be taken out from a mold without being cracked or damaged and the mold can be easily replaced.

[0004]

In order to achieve the above object, the mold making equipment according to the present invention opens and closes a split-type mold which is installed and attached so as to be rotatable 90 degrees forward and backward in a vertical plane. A mold opening / closing device, a drive device for rotationally driving the mold opening / closing device, and an upper surface side of a split position of the mold in a vertical split state in which the mold opening / closing device is rotated 90 degrees and closed. Sand blowing device for blowing molding sand from the mold, a mold pushing device mounted on the mold opening / closing device for pushing out a mold from the mold, and a reverse rotation of 90 degrees through the mold opening / closing device to horizontally move the mold. And a mold take-out device provided with a mold placing member for receiving the mold pushed out by the push-out pin of the mold pushing-out device when in the split state.

[0005]

[Function] The mold is opened and closed by the mold opening / closing device, the molding sand is blown and filled by the sand blowing device to cure the molding sand, and the mold opening / closing device is driven by the driving device.
The mold or the like is rotated by 90 degrees to bring the mold in the vertically split state into the horizontally split state, and subsequently, the mold is opened so that the mold is attached to one of the mold pieces. Then, the mold placing member of the mold take-out device is inserted between the opened mold pieces, and then the mold is pushed onto the mold placing member by the push pin of the mold pushing device, and then the mold placing member on which the mold is placed is pushed. Retreat from between the mold pieces. Further, when exchanging the mold, the mold is horizontally split.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1, which is a front view,
A mold opening / closing device 2 for opening / closing the split mold 10 composed of mold pieces 10a and 10b is provided in the vertical plane near the center of the base 1.
It is supported and arranged so as to be rotatable in the forward and reverse directions of 0 degree. In the mold opening / closing device 2, the left ends of the first and second fixed die bases 5 and 6 correspond to the upper and lower ends of the rotary frame 4 rotatably supported in the vertical plane via the support shaft 3. The first and second fixed die bases 5,
Guide rods 7, 7 directed vertically are provided between the guide rods 6, a movable die base 8 is vertically slidably mounted between the guide rods 7, 7, and the first fixed die base 5 is also provided.
Downward cylinders 9, 9 are mounted on both front and rear sides of the movable die base 8, and lower ends of piston rods of the cylinders 9, 9 are connected to both front and rear sides of the movable die base 8.
Is movable up and down by the expansion and contraction operation of the cylinders 9, 9. The mold piece 10 a is attached to the movable die base 8, and the mold piece 10 b is attached to the second fixed die base 6.

2 is a right side view of a partial cross section of FIG.
2, the mold opening / closing device 2 includes a mold pushing device 11a for pushing out the mold from the mold pieces 10a, 10b (horizontal split state in FIG. 2) attached to the mold opening / closing device 2,
11b are mounted respectively. Further, in this mold extrusion device 11a, the first extrusion pin 14, 1 is provided on the lower end of the piston rod of the downwardly directed first cylinder 12 mounted on the movable die base 8 via the first attachment plate 13.
4 is attached, and in the mold extruding device 11b, the second extruding pin 17 is attached to the upper end of the piston rod of the upward second cylinder 15 attached to the second fixed die base 6 via the second attaching plate 16. 17 is attached.

Further, as shown in FIG. 1, a drive device 18 for rotating the mold opening / closing device 2 is mounted on the upper left side of the base 1. Then, this drive mechanism 18
In the above, the tip of the piston rod of the lateral cylinder 20 pivotally supported on the base 1 via the bracket 19 is vertically rotatable to the rotary frame 4 of the mold opening / closing device 2 via the connecting member 21 and the connecting pin 22. Connected to
By the expansion and contraction operation of the cylinder 20, the mold opening / closing device 2 is configured to rotate forward and backward 90 degrees in a vertical plane. further,
As shown in FIG. 2, the second fixed die base 6 of the mold opening / closing device 2 has four roller frames 24 supporting the mold-inserting / retracting flanged rollers 23, 23, which are four upward cylinders 2.
It is mounted so as to be able to move up and down via 5 and 25. And
As shown in FIG. 1, on the collared rollers 23, 23 that have risen due to the extension operation of the cylinders 25, 25, a die in a horizontally split state is provided via a collared roller conveyor 26 mounted on the lower right side of the base 1. Ten can enter and leave.

Further, as shown in FIG. 1, a sand blowing device 27 for blowing molding sand from the upper surface side of the split position of the vertically split mold 10 is provided at the upper left position of the base 1. In this sand blowing device 27, a blow head 28 communicating with a compressed air source (not shown) is provided so as to be movable up and down via a downward cylinder 29. Further, as shown in FIG. 2, on the left side of the base 1 (on the front side of the mold opening / closing device 2 in FIG. 1), a mold take-out device 30 for taking out the mold from the mold 10 of the mold opening / closing device 2 is provided. Has been done. Then, in the mold take-out device 30, the traveling carriage 32 is installed on the machine base 31 so as to be capable of reciprocating in the left-right direction (front-back direction in FIG. 1).
On the traveling carriage 32, a left part of a mold placing member 33, which has a fork shape and can enter between the second extruding pins 17 of the mold extruding device 11, is attached.

Next, the operation of the equipment thus constructed will be described. As shown in FIG. 1, when the mold 10 attached to the mold opening / closing device 2 is in a horizontal split state and the molds 10 are opened by the contraction operation of the cylinders 9, 9, First, the cylinder 20 is extended and the mold opening / closing device 2 is rotated 90 degrees in the clockwise direction about the support shaft 3 as a fulcrum, and the mold 1 is opened as shown in FIG.
0 is changed from the horizontal split state to the vertical split state, and subsequently, the cylinders 9 of the mold opening / closing device 2 are extended to close the mold 10 to bring the mold into the state shown in FIG. Then, the sand blowing device 2
The cylinder 29 of No. 7 is extended to lower the blow head 28, and the blow head 28 is brought into contact with the upper surface of the mold 10 at the divided position.
Into the cavity of the mold 10 via the blow head 28,
Blow and fill with foundry sand containing a binder. Then, the filled molding sand is heated by a conventional means or is caused to flow through a hardening gas to be hardened, and after the hardening of the molding sand is completed, the cylinder 20 is contracted to move the mold opening / closing device 2 in the 90 ° counterclockwise direction. The mold 10 is rotated so that the mold 10 is changed from the vertically split state to the horizontally split state.

Then, while the first cylinder 12 of the mold pushing device 11a is extended to push the mold from the mold piece 10a via the push pins 14 and 14, the cylinders 9 and 9 are contracted to move the mold 10. Open and attach mold M to mold piece 10b, followed by mold extrusion device 11
The second cylinder 15 of FIG.
The mold M is pushed up from the mold piece 10b through 7,17. Next, the mold placing member 33 is moved to the right through the traveling carriage 32 of the mold removing device 30 to enter between the second extruding pins 17 and 17 (see FIG. 5, which is a partial cross-sectional right side view). Then, the second cylinder 15 is contracted to lower the second push pins 17, 17 and the like, and the mold M is mounted on the mold mounting member 33. Next, the mold placing member 33 is moved to the left via the traveling carriage 32, whereby the mold M can be taken out of the mold 10. In addition, as shown in FIG. 6 which is a front view, the mold 10
After making the horizontal split state and removing it from the mold opening / closing device 2, the cylinders 25, 25 are extended to operate the roller 2 with the collar.
By pushing up the mold 10 through the rollers 3, 23, the collared rollers 23, 23 and the collared roller conveyor 26
The mold 10 can be easily taken out from the mold opening / closing device 2 in a horizontally split state via the.

In the above embodiment, the mold 10 is opened by attaching the mold M to the lower mold piece 10b, but the mold M is attached to the upper mold piece 10a. The mold 10 is opened, and the mold mounting member 33 is placed on the upper mold piece 1.
The mold may be pushed onto the mold mounting member 33 as close as possible to 0a. In this case, the mold placing member 33 of the mold take-out device 30 does not have to be a fork.

[0013]

As is apparent from the above description, according to the present invention, the mold sand is blown into the mold with the mold vertically cut, and the mold sand is hardened, and then the mold is horizontally split. Open the mold so that the mold is attached to one of the mold pieces, and then move the mold mounting member as close as possible to the mold piece to which the mold is attached, and enter between the mold pieces. By doing so, the mold can be reliably and easily taken out without cracking or damage, and furthermore, the mold can be moved in and out of the mold opening / closing device in a horizontally split state, so that the mold can be replaced. It has an excellent effect that it becomes very easy.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a right side view of a partial cross section of FIG.

FIG. 3 is a front view illustrating a process of the present invention.

FIG. 4 is a front view illustrating a process of the present invention.

FIG. 5 is a right side view, partly in section, illustrating a process of the present invention.

FIG. 6 is a front view illustrating a process of the present invention.

[Explanation of symbols]

 2 Mold Opening / Closing Device 10 Mold 11a 11b Mold Extruding Device 17 Extrusion Pin 18 Driving Device 27 Sand Blowing Device 30 Mold Extracting Device 33 Mold Placement Member

Claims (1)

[Claims] 1. A mold opening / closing device for opening / closing a split mold installed and attached so as to be capable of rotating 90 degrees in a vertical plane in a vertical plane;
A drive device for rotationally driving the mold opening / closing device; sand for blowing molding sand from the upper surface side of the split position of the mold in a vertically split state in which the mold opening / closing device is rotated by 90 degrees and closed. A blowing device; a mold pushing device attached to the mold opening / closing device to push out a mold from the mold; and a reverse rotation of 90 degrees through the mold opening / closing device to bring the mold into a horizontal split state. And a mold take-out device provided with a mold placing member for receiving the mold pushed out by the push-out pin of the mold pushing device.