JP4062576B2 - Model board conveyor with fill frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a model board conveying apparatus with a bank frame that has a bank frame that can be moved up and down and that is moved by mounting a model board.
[0002]
[Prior art]
Conventionally, for example, in a blow squeeze machine, a squeeze head of a blow squeeze machine is overlaid with a fill frame so that the mold in the cast frame produced by squeeze of foundry sand has a required hardness. Then, casting sand is blown and filled into a mold making chamber defined by a casting frame, a model plate, etc., and the casting sand is squeezed to mold a mold. For this purpose, the present applicant has previously proposed a model board conveying apparatus with a fill frame disclosed in Japanese Patent Application Laid-Open No. 63-63552. This model board transport apparatus with a fill frame has a structure in which a model board is attached to a carrier box disposed so as to be movable up and down, and a fill frame is mounted so as to be movable up and down via a cylinder attached to the carrier box. Yes.
[0003]
[Problems to be solved by the invention]
However, in the conventional model board transport apparatus with a frame configured as described above, the cylinder for raising and lowering the frame is an air cylinder and has a large diameter and a large size. The attached model board conveying device is also generally large, and as a result, the blow squeeze machine is large and expensive, and requires a large space for installation. In addition, when exchanging the model plate transport device with a fill frame with another one, it is necessary to remove the piping of the air cylinder, and there is a problem that the replacement of the model plate transport device with the fill frame is very troublesome. It was.
[0004]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a model board transport apparatus with a fill-up frame that is small in size and easy to replace.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a model plate transport apparatus with a fill frame according to the present invention has a fill frame that can be moved up and down, and the model plate transport apparatus with a fill frame to which the model plate is attached is moved. Can be moved up and down by a contraction operation of a plurality of upward hydraulic cylinders mounted on a movable model board transport body, and the plurality of upward hydraulic cylinders are mounted on the model board transport body and push out liquid by a contraction operation. The special hydraulic cylinders are expanded and contracted by supplying liquid by alternating contraction operation of at least two special hydraulic cylinders, and these special hydraulic cylinders are alternately extended by at least two cylinders separately fixedly disposed outside the model board transport body. It is configured to be contracted by each operation.
[0006]
In such a configuration, when the model plate transport body, the filling frame, etc. are moved to a predetermined position, one of the special hydraulic cylinders is contracted by the extension operation of one of the cylinders. The extending frame is lifted to raise the fill frame. Thereafter, the foundry sand is blown into a mold making chamber defined by the squeeze head, the casting frame, the fill frame and the model plate, and the blown foundry sand is squeezed to form a desired mold. After the molding of the mold is completed, one cylinder is contracted and the other cylinder is expanded, and the other special hydraulic cylinder is contracted and one special hydraulic cylinder is expanded. The cylinder is contracted and the filling frame is lowered.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. A filling frame 2 is disposed at the upper end portion of the box-shaped model board conveying body 1 so as to be movable up and down, and the filling frame 2 includes a plurality of upward hydraulic cylinders 3 and 3 mounted on the model board conveying body 1. These piston rods are installed between the ends of the piston rods, and are moved up and down by the expansion and contraction operations of the plurality of hydraulic cylinders 3 and 3.
[0008]
The rear cover side of the first special hydraulic cylinder 4 mounted on the left side of the model board transport body 1 is also connected to the rear cover side of the plurality of hydraulic cylinders 3, 3. On the front lid side, the rear lid side of the second special hydraulic cylinder 5 mounted on the right side of the model board transport body 1 is connected in communication via pipes 6 and 7, respectively. 3 and 3, the first and second special hydraulic cylinders 4 and 5 are alternately contracted and alternately extended and interlocked to alternately supply liquid to the rear lid and the front lid.・ It is ejected and expanded and contracted.
[0009]
Further, the first special hydraulic cylinder 4 is configured to be contracted by an extension operation of a hydraulic cylinder 8 separately fixedly disposed at a predetermined position outside the model board transport body 1. The second special hydraulic cylinder 5 is configured to be contracted by an extension operation of an air cylinder 9 separately fixedly disposed at a predetermined position outside the model board transport body 1. The hydraulic cylinder 8 is extended and contracted by a hydraulic pressure supply circuit 10. The air cylinder 9 is extended and contracted by an air pressure supply circuit 11. A model plate 12 is attached to the upper surface of the model plate transport body 1.
[0010]
In this configuration, the model board transport body 1, the filling frame 2 and the like are moved to predetermined positions so that the first special hydraulic cylinder 4 becomes the hydraulic cylinder 8, and the second special hydraulic cylinder 5 becomes the air cylinder 9. Subsequently, the hydraulic cylinder 8 is extended to operate and the first special hydraulic cylinder 4 is contracted, whereby liquid is supplied to the rear lid side of the hydraulic cylinders 3 and 3 to extend the hydraulic cylinders 3 and 3. Operates and raises the fill frame 2. Next, the foundry sand is blown into a mold making chamber (not shown) defined by the squeeze head (not shown), the cast frame (not shown), the fill frame 2 and the model plate 12, and the blown foundry sand is Squeeze to make the desired mold.
[0011]
After the molding of the mold is completed, the hydraulic cylinder 8 is contracted and the air cylinder 9 is extended to operate the first special hydraulic cylinder 4 and the second special hydraulic cylinder 5 is contracted. While supplying to the front lid side of the hydraulic cylinders 3 and 3, the liquid is discharged from the rear lid side of the hydraulic cylinders 3 and 3 and the hydraulic cylinders 3 and 3 are contracted to lower the filling frame 2.
[0012]
【effect】
As is apparent from the above description, the present invention provides a model board transporting device with a bank frame that has a bank frame that can be moved up and down and is moved by mounting a model board. A plurality of upward hydraulic cylinders mounted on the main body can be moved up and down by a contraction operation, and the plurality of upward hydraulic cylinders are mounted on the model board transport body and include at least two special hydraulic cylinders that push out liquid by the contraction operation. These special hydraulic cylinders are expanded and contracted by supply of liquid by alternating contraction operation, and these special hydraulic cylinders are respectively contracted and operated by alternating extension operations of at least two cylinders separately fixedly disposed outside the model board transport body. As a result, it is possible to reduce the size of the model board transport device with a fill frame to a small size as a whole, and to replace the model plate transport device with a fill frame. Since it is not necessary to remove and install the piping, it is easy to replace the model board transport device with the fill frame. In addition, the model plate transport device with the fill frame can be made to be appropriately movable. Excellent practical effect.
[Brief description of the drawings]
FIG. 1 is a schematic front view of an embodiment of the present invention.
[Explanation of symbols]
1 Model board transport body 2 Prime frame 3 Prime frame 4 First special hydraulic cylinder 5 Second special hydraulic cylinder 8 Hydraulic cylinder 9 Air cylinder

Claims (1)

In a model board transporting apparatus with a bank frame that has a bank frame that can be moved up and down and is moved by mounting a model board,
The filling frame can be raised and lowered by a contraction operation of a plurality of upward hydraulic cylinders mounted on a movable model plate transport body,
The plurality of upward hydraulic cylinders are expanded and contracted by supplying liquid by alternating contraction operation of at least two special hydraulic cylinders that are attached to the model board transport body and push out liquid by contraction operation,
These special hydraulic cylinders are configured so as to be contracted by alternating extension operations of at least two cylinders separately fixedly disposed outside the model plate transport body, respectively. Conveying device.

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