JP2001347345A - Device for carrying pattern plate with banking flask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for carrying a pattern plate with a banking flask, having small size as the whole body. SOLUTION: This device is constituted of the banking flask 2 which is elevatable with a shrinking work of plural upward hydraulic cylinders 3, 3 fitted to an elevatable pattern plate carrying body 1, the hydraulic cylinders 3, 3 which are expanded/shrunk by supplying liquid with alternating shrinking work of at least two sets of special hydraulic cylinders 4, 5 fitted to the pattern plate carrying body 1 and pushing out the liquid with the shrinking work, and the specific hydraulic cylinders 4, 5 which are shrunk with alternating expanding work of two sets of cylinders 8, 9 separately and fixedly disposed to the outer part of the pattern plate carrying body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a model plate transporting apparatus having a frame which can be moved up and down and which has a frame which can be raised and lowered.

[0002]

2. Description of the Related Art Conventionally, for example, in a blow squeezing machine, a casting frame is superimposed on a casting frame so that a mold in the casting frame formed by squeezing of casting sand has a required hardness and then blown. A molding sand defined by a squeeze head, a casting frame, a model plate and the like of a squeezing machine is blown and filled with molding sand, and the molding sand is squeezed to mold a mold. The applicant of the present invention has previously proposed a model plate transporting device with a filling frame for that purpose, which is disclosed in Japanese Patent Application Laid-Open No. 63-63552. This model plate transport device with a filling frame has a structure in which a model plate is attached to a carrier box arranged to be able to move up and down, and a filling frame is attached to be able to move up and down via a cylinder attached to the carrier box. I have.

[0003]

However, in the conventional model plate conveying apparatus with a filling frame constructed as described above, the cylinder for raising and lowering the filling frame is a large-diameter and large-sized cylinder because it is an air cylinder. Therefore, the model plate transfer device with a filling frame is also generally large, and as a result, the blow squeeze machine is large and expensive,
A large space for installation is also required. In addition, when exchanging the model plate transfer device with a filling frame with another one, it is necessary to remove the piping of the air cylinder, and there is a problem that replacement of the model plate transfer device with a filling frame is very troublesome. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a model plate carrying device with a filling frame which is small in size and easy to replace.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a model plate carrying apparatus with a filling frame, which has a filling frame which can be moved up and down and which has a model plate attached and moved. In the model plate transport device, the filling frame is made movable up and down by a contraction operation of a plurality of upward hydraulic cylinders mounted on a movable model plate transport main body, and the plurality of upward hydraulic cylinders are attached to the model plate transport main body. At least two special hydraulic cylinders that are mounted and extrude the liquid by the contraction operation are expanded and contracted by the supply of the liquid by the alternate contraction operation, and these special hydraulic cylinders are separately fixed and disposed outside the model plate transport body. at least
The two cylinders are configured to be contracted by alternately extending the cylinders.

In such a construction, when the model plate carrying main body, the filling frame and the like are moved to a predetermined position, one of the special hydraulic cylinders is contracted by the extension operation of one of the cylinders. The hydraulic cylinder is extended and the filling frame is raised. Thereafter, molding sand is blown into a mold forming chamber defined by the squeeze head, the casting frame, the filling frame, and the model plate, and the blown molding sand is squeezed and formed into a desired mold. After the molding of the mold is completed, one of the cylinders is contracted and the other cylinder is extended, and the other special hydraulic cylinder is contracted and the one special hydraulic cylinder is extended. The cylinder is contracted and the filling frame is lowered.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. At the upper end of a box-shaped model plate transporting body 1, a filling frame 2 is provided so as to be able to move up and down. The filling frame 2 is composed of a plurality of upward hydraulic cylinders 3, 3 mounted on the model plate transporting body 1. The piston rods extend between the distal ends of the piston rods, and are moved up and down by the expansion and contraction operations of the plurality of hydraulic cylinders 3.

The plurality of hydraulic cylinders 3.3
The rear lid side of the first special hydraulic cylinder 4 mounted on the left side of the model plate transporting body 1 has a rear lid side, and the front lid side of the plurality of hydraulic cylinders 3.3 has the model plate. The rear lid side of the second special hydraulic cylinder 5 mounted on the right side of the transfer main body 1 is connected to each other through pipes 6 and 7, and the plurality of hydraulic cylinders 3.3 are connected to the first and second hydraulic cylinders. (2) The special hydraulic cylinders 4 and 5 are contracted alternately and extended alternately in conjunction with each other, so that the liquid is alternately supplied and discharged to the rear lid side and the front lid side so that the liquid expands and contracts. Has become.

Further, the first special hydraulic cylinder 4 is configured to be contracted by an extension operation of a hydraulic cylinder 8 separately fixed and disposed at a predetermined position outside the model plate conveying main body 1. Further, the second special hydraulic cylinder 5 is configured to be contracted by an extension operation of an air cylinder 9 separately fixed and disposed at a predetermined position outside the model plate transport main body 1. The hydraulic cylinder 8 is operated to expand and contract by a hydraulic supply circuit 10. The air cylinder 9 is provided with the pneumatic supply circuit 1.
1 allows the telescopic operation. A model plate 12 is mounted on the upper surface of the model plate transport main body 1.

In the above-mentioned construction, the first special hydraulic cylinder 4 is moved to the hydraulic cylinder 8 and the second special hydraulic cylinder 5 is moved to the air cylinder by moving the model plate conveying body 1, the filling frame 2 and the like to predetermined positions. 9 and then extend the hydraulic cylinder 8 to contract the first special hydraulic cylinder 4, thereby supplying the liquid to the rear lid side of the hydraulic cylinders 3, 3 and 3 is extended and the filling frame 2 is raised. Next, molding sand is blown into a mold molding chamber (not shown) defined by the squeeze head (not shown), the casting frame (not shown), the filling frame 2 and the model plate 12, and the blown molding sand is blown. Squeeze to form the desired mold.

After the molding of the mold is completed, the hydraulic cylinder 8 is contracted and the air cylinder 9 is extended to perform the first operation.
The special hydraulic cylinder 4 is extended and the second special hydraulic cylinder 5 is contracted, whereby liquid is supplied to the front lid side of the hydraulic cylinders 3.3 and liquid is supplied from the rear lid side of the hydraulic cylinders 3.3. Discharge hydraulic cylinder 3.3
Is contracted to lower the filling frame 2.

[0012]

As is clear from the above description, the present invention relates to a model plate transporting device with a filling frame which has a filling frame which can be moved up and down and which is mounted with a model plate and which is moved. The upward movement of the plurality of upward hydraulic cylinders mounted on the model plate transport main body is enabled by the contraction operation, and the plurality of upward hydraulic cylinders are mounted on the model plate transport body and extrude the liquid by the contraction operation. The hydraulic cylinders are expanded and contracted by the supply of liquid by alternately contracting operations of the hydraulic cylinders, and these special hydraulic cylinders are contracted by alternately extending and extending at least two cylinders separately fixed outside the model plate conveying body. As a result, it is possible to reduce the size of the model plate transfer device with a filling frame as a whole, and to further reduce the size of the model plate transfer device with a filling frame. Since it is not necessary to remove and attach pipes when exchanging the model, it is easy to replace the model plate transfer device with a filling frame, and it is also possible to make the model plate transfer device with a filling frame freely movable. It has excellent practical effects such as becoming.

[Brief description of the drawings]

FIG. 1 is a schematic front view of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Model board conveyance main body 2 Fill frame 3 Fill frame 4 1st special hydraulic cylinder 5 2nd special hydraulic cylinder 8 Hydraulic cylinder 9 Air cylinder

Claims (1)

[Claims] 1. A model plate transport device with a fill frame which has a fill frame which can be raised and lowered and which is moved with a model plate attached thereto,
The filling frame can be moved up and down by a contraction operation of a plurality of upward hydraulic cylinders mounted on the movable model plate transport body, and the plurality of upward hydraulic cylinders are mounted on the model plate transport body and contracted by the contraction operation. The expansion and contraction operation is performed by the supply of the liquid by the alternate contraction operation of at least two special hydraulic cylinders that extrude the liquid, and these special hydraulic cylinders are provided by at least two cylinders separately fixed and arranged outside the model plate transport main body. A model plate transporting device with a filling frame, wherein each of the contracting operations is performed by alternately extending operations.