JPH043723Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a pouring device that can automatically perform casting operations from pumping up hot water to pouring it into a mold. This invention relates to a pouring device that can automatically remove a filter such as a wire mesh.

[Prior art]

BACKGROUND ART In casting, particularly in mold casting, a wire gauze or a ceramic filter is often inserted into the sprue of the mold for the purpose of filtering or rectifying the pouring metal. This filter is either left to solidify together with the molten metal in the sprue while being inserted into the sprue, or is removed manually or by a separate removal device after the casting operation is completed. However, in the former case, that is, when the filter is left in the sprue, it is redissolved together with the sprue as a return material. Therefore, in the case of metal filters, the composition of the molten metal in the casting itself changes when the filter is melted, so it is necessary to use an expensive metal whose constituent elements have been adjusted in advance, or to use a filter that has an adverse effect on the properties of the casting. It is necessary to use high-purity, expensive melting materials with few impurities, which poses a cost problem.

Further, when a non-metallic filter such as ceramic is used as the filter, non-metallic inclusions become entangled in the casting body, causing problems such as deterioration of the quality of the casting product.

In the latter case, in which the filter is manually removed after the casting operation is completed, the number of steps for the operator increases, and the operator must enter the casting apparatus, which poses a serious problem in terms of work safety. Further, the method of removing the filter using a separate device after the casting work is completed also requires extra cost for providing the separate device and a work space for it, which poses a problem in terms of cost.

[Problem that the invention attempts to solve]

The present invention solves the above-mentioned problems in casting molds, especially when processing the filter installed at the sprue of the mold after pouring, that is, it is necessary to use an expensive filter with adjusted composition or to use an expensive filter with high purity. There are cost and safety issues, such as having to leave the filter to solidify using a molten material, or removing the filter using dangerous manual operations, or using a separate device to remove the filter. The objective is to provide a hot water pouring device that can completely automate everything from drawing hot water to pouring hot water using a single device.

[Specific measures to solve the problem]

As a result of intensive research into means for solving the above-mentioned problems, the inventors of the present invention have developed a ladle for storing molten metal, an elevating member that supports the ladle and moves it up and down, and a tilting member that gives a tilting motion to the ladle. , a moving device for moving the ladle from the hot water drawing position to the hot water pouring position, and a hot water pouring device that automatically performs the process from drawing hot water to pouring hot water, the elevating member or the tilting member having a filter that interlocks with the tilting movement of the ladle. By providing a clamp or hook as a removal member, the filter installed at the sprue of the casting mold can be removed immediately after pouring, without the need for dangerous manual work or separate equipment. The present invention was completed based on the knowledge that it was possible to simultaneously solve the problems of component changes and material deterioration.

[Effect]

In the pouring device of the present invention, a mold filter removal clamp or hook is integrally attached to the ladle lifting member or tilting member to the pouring device that can automatically perform the process from drawing hot water to pouring the hot water, and the clamp ends pouring. By adding a structure in which the filter is automatically clamped or hooked at a certain point in time, and the filter is pulled away from the sprue as the ladle rises after pouring, the dangerous manual work described above is completely unnecessary. It is possible to completely automate everything from drawing hot water to pouring hot water and removing the filter using a single device without having to use separate equipment. Another great advantage of the present invention is that the filter can be removed immediately after pouring, so even if a filter made of inexpensive material whose composition has not been adjusted is used, there will be no change in the composition of the molten metal due to its dissolution. Alternatively, even when a non-metallic filter such as ceramic is used, deterioration of the material due to entrainment can be minimized.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the pouring device of this embodiment in a state immediately before starting pouring, and FIG. 2 shows a state in which the filter is clamped at the end of pouring.

To explain the main structure of the pouring device of this embodiment, the pouring device of this embodiment includes a ladle 17 for storing molten metal, a cylinder rod 10 as an elevating member that supports the ladle and moves it up and down, and The tilting link members 12 to 16 as tilting members that give the ladle a tilting motion, the cylinder 22, the clamps 24 and 25 for removing the mold filter 28 attached to the link members, and the above-mentioned members are placed, and the molten metal is removed from the melting furnace. It consists of a cart 1 that is moved electrically or hydraulically to the position of the mold 26.

The detailed configuration of the pouring device of this embodiment will be described below.

A pair of guide bushes 6 are fixed on the trolley 1, and a guide rod 7 is attached to the guide bushes 6.
is inserted so that it can move freely up and down, and the upper end of the guide rod 7 is connected with a blanket 8.

Further, a lifting cylinder 9 is fixed between the pair of guide bushes 6 on the truck 1, and the lower end of the cylinder rod 10 of the cylinder 9 and the lower end of the pair of guide bushes 7 are connected by a plate 11. There is. A link base 12 is fixed to the lower end of the plate 11, and two pairs of upper and lower link members 13 and 14 are attached to the link base 12 so as to rotate automatically. The upper and lower link members 13 and 14 each have a vertical link member 15 for supporting the front part of the ladle 17 on the upper link member and a vertical member 16 for supporting the rear part of the ladle on the lower link member 14, as shown in FIGS. As shown in Figure 2, the link members are connected in a cross-shaped manner. A connecting shaft 21 between the upper link member 13 and the vertical link member 15 is connected to the tip of a cylinder rod 23 of a tilting cylinder 22 rotatably attached to the bracket 8. By raising the shaft 21, the mold is tilted as shown in FIG. 2, and pouring is performed.

In this embodiment, the upper and lower link members 1 have clamp claws 24 and 25 at their tips for clamping the mold filter 28 in addition to the above-mentioned link members.
8, 20, as shown in FIGS. 1 and 2,
The upper link member 18 is connected to the above-mentioned link member 15, and the lower link member 20 is connected to the link member 19 connected to the middle of the link member 16, and these mold clamping link members are also connected so as to form a grid. There is. Therefore, clamp claw 2
Reference numerals 4 and 25 operate in conjunction with the tilting of the ladle due to the operation of the cylinder 22, and both clamp claws can move to close and clamp the filter 28.

Next, the operating mode of the pouring device of this embodiment will be explained.

After pumping up the molten metal into the ladle 17 at the molten metal furnace position, the cart 1 is moved on the rails 4 and 5 by driving means such as electric, hydraulic, or pneumatic, and is stopped at the mold 26 position. After stopping, the cylinder rod 10 of the lifting cylinder 9 moves the ladle 17 together with the plate 11, link base 12, pair of guide rods 7, and blanket 8 to the sprue part 27 of the mold 26.
lower it until it is located directly above it. Next, the tilting cylinder 22 is operated to raise the shaft 21 connected to the cylinder rod 23. As the shaft 21 rises, the link members 13 and 14 rotate about the fulcrums a and b, and the link members 15 and 16 further rise, the ladle is tilted, and the molten metal is poured into the mold 26 through the filter 28. Further, as the ladle tilts, the link member 18 rotates about the fulcrum c, and the clamp claws 24 and 25 close to clamp the filter.

After pouring, with the ladle 17 tilted and the clamp claws 24 and 25 clamping the filter, move the cylinder rod 1 of the lifting cylinder 9.
By raising the cylinder rod 23 of the tilting cylinder 22, the link members 13, 14, 15 are moved. , 18 to open the clamp claws 24, 25, and the filter is dropped and collected.

As described above, in this embodiment, the filter clamp member is connected to the ladle tilting link member, and the filter is clamped and removed in conjunction with the tilting of the ladle. It is obvious that a hook can be used instead, and it is obvious that a hook can be used instead, and instead of interlocking the clamp or hook with the tilting of the ladle, a device for detecting the end of pouring, such as a micro switch, can be installed on the tilting member of the ladle. It is clear that the same effect can be obtained by providing a separate drive source and clamping the filter at the end of pouring.

[Effect of idea]

As mentioned above, in the pouring device of the present invention,
The process from pumping up the molten metal to pouring can be performed automatically, as well as removing the filter from the mold automatically and quickly using a single pouring device, reducing the cost and safety associated with removing the filter after casting. This simultaneously solves the problem of quality and material deterioration due to filter melting, and removing the filter prevents complete automation of casting1.
Considering that there were two major factors,
It can be said that the practical effects of the present invention are extremely large.

[Brief explanation of drawings]

Figure 1 shows the pouring device of the present invention in a state immediately before starting pouring, Figure 2 shows the pouring device at the end of pouring, and Figure 3 shows the pouring device of the present invention. FIG. 3 is a front view of the device. DESCRIPTION OF SYMBOLS 1...Dolly, 7...Guide rod, 8...Blanket, 9...Lifting cylinder, 11...Plate, 12, 13, 14, 15, 16...Tilt link member, 17...Raddle, 18, 19,2
0...Clamp link member, 22...Tilt cylinder, 24, 25...Clamp claw, 26...
Mold, 28...filter.

Claims (1)

[Scope of utility model registration request] A ladle for storing molten metal, a moving device for moving the ladle to a mold position, an elevating member for giving an elevating motion to the ladle, a tilting member for giving a tilting motion to the ladle, and a movable device provided on the elevating member or the tilting member. A pouring device comprising: a filter removing member for removing a filter inserted into a sprue of a mold in conjunction with the tilting movement of the ladle.