JP2922459B2 - Castings and molds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a casting and a mold.

[0002]

2. Description of the Related Art A cast product obtained by separating a mold from a mold is solidified in a state in which a gate section such as a gate, a runner, and a riser is integrated with the main body of the cast product. Therefore, it is necessary to remove these gate sections after casting. For example, in the case of a cylinder block, the gate sections are hit with a hammer or the like to be cut off. In the foundry, in addition to removing the gate section, the castings are conveyed between the respective steps for post-processing such as sand removal, slow cooling, deburring, and the like.

[0003]

By the way, many castings have complicated shapes, and it is difficult to handle and position them during transportation when the castings have runners, risers and the like.
In particular, in a multi-product casting line, the size and shape of the cast product to be produced are varied, which hinders automation of the post-processing process. If the cast product has a shape in which the burrs are likely to appear, there is a possibility that the handling may lack reliability unless the burrs are avoided. The present invention can solve the above-mentioned problems, and an object of the present invention is to make it easier to handle a cast product in post-processing after mold release.

[0004]

In order to solve this problem, the following castings and molds were created. Claim 1
The invention of the above is a cast product provided with a reference seat for positioning at a gate system portion provided at the time of casting and removed after casting.
In the above-mentioned casting, a positioning reference seat used after the mold is removed from the mold is a sprue system part that is not necessary for the product (the main body of the casting), for example, a pouring spout, a runner, a riser, a fryer, a hot water. Pool,
It is formed in coughs and the like. Therefore, it is possible to set a reference seat that is not restricted by the product shape and is not affected by the casting flash.For example, by providing a reference seat having a uniform shape and dimensions for a plurality of types of cast products, Handleability can be improved.

According to a second aspect of the present invention, in the casting according to the first aspect, the reference seat has an identification portion. Therefore, by obtaining the identification information such as the type of the casting from the identification unit, the conveyance and post-processing of the casting can be made suitable for the casting.

According to a third aspect of the present invention, in the casting according to the first or second aspect, the reference seat is formed in a shape corresponding to the casting transporting tool. In other words, when multiple types of castings are mixed and handled in a multi-product casting line, if the reference seat of each casting corresponds to the casting transporting tool, the casting transporting tool can be used in common, so when transporting Handling is easy and the transport equipment is simplified.

According to a fourth aspect of the present invention, there is provided a casting mold having a shape in which a reference seat for positioning a casting used after casting is provided at a gate section of the casting. In the above-mentioned mold, a reference base for positioning is provided at a necessary part of a sprue system part which is not necessary for a product (casting main body), for example, a sprue, a runner, a cough, a riser, a deep-water pool, and the like. Can be cast.

[0008] In the present specification, the “gate section”
It is not used in a particularly limited sense, and refers to a passage or similar to a passage through which hot water (molten metal) enters a region corresponding to a casting main body of a mold during casting. Roads, risers, coughs, fryers, pools, etc., which are removed from the casting after casting.

[0009] In the present specification, the term "template" refers to
Generally, it is a mold using casting sand or other refractory materials, and is a concept including a mold.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, description of general casting matters will be omitted. This embodiment does not limit the present invention. FIG. 1 is a perspective view showing a casting and a transfer pallet. As shown in FIG. 1, after casting, the casting 1 is provided in a casting body, specifically, a cylinder block 2, with a pouring port 3 a, a pouring gate (also referred to as a rising runner) 3 b, a weir 3 c, and a running path 3 d. , Hot water 3
e, solidification of the sprue system parts such as fry 3f, etc. are solidified, and the runner 3d has positioning reference seats 4 (4a to 4d) at four predetermined positions, which will be described in detail later. It is arranged.

The transport pallet 5 is for transporting the casting 1 described above. Stepped support portions 6a to 6d corresponding to the reference seats 4a to 4d protrude from a flat base 5a. Further, a front contact portion 7a capable of contacting the end of the runner 3d,
7b and rear contact portions 7c and 7d that can contact the side end portions of the rear reference seats 4c and 4d protrude, and the runner 3d of the casting 1 is provided.
Can be sandwiched from four directions: front, rear, left and right. Therefore, when the casting 1 is placed on the transport pallet 5, the support portions 6a to 6d support the reference seats 4a to 4d, and perform positioning in the left-right direction (the direction in which the reference seat 4 extends), so that the front contact is achieved. Parts 7a, 7b and rear contact part 7c,
7d performs positioning in the front-rear direction. In addition, since it is for positioning of a casting coarse material, the left-right dimension _A0 and the front-back dimension _B0
Is given an appropriate margin. This transport pallet 5
Is an example of the casting product conveying tool referred to in the present invention.

FIG. 2 is a perspective view showing the shape from the pouring port 3a to the weir 3c in the pouring system part by removing the casting main body (cylinder block in the above example) for convenience. If only the detailed shape is different even if the type of the casting main body is different, each part of the runner 3d, weir 3c and reference seat 4 shown in FIG. In addition, when the casting body is smaller than that shown in FIG. 2A, as shown in FIG.
a to 41d) are projected to make the positioning dimensions unchanged, that is, each reference dimension is substantially A ₀ = A ₁ = A ₂ , B ₀ = B
It formed such that ₁ = B _2. In the drawing, 31a is a pouring gate, 31b is a pouring gate, 31c is a cough, 31d is a running water,
41e is an identification unit described below.

Each of the reference seats 4 and 41 has a shape, a size and an arrangement corresponding to the transport pallet 5 described above.
Further, for example, the shape of the irregularities (S
₁ and S ₂ reference) is different identification portion 4e, it can be provided 41e. The identification sections 4e and 41e serve as a casting information transmission section, and can display (identify) the direction of breaking the gate and the processing instruction at the time of deburring, in addition to the type of casting. It is possible. In addition, the identification units 4e and 41e may be provided at a gate section other than the runners 3d and 31d.

Therefore, the cast product 1 immediately after unmolding
Is placed on the transport pallet 5 as it is, the position and orientation of the casting 1 are determined. And, for example, as shown in FIG.
Upon locating the sensing means identifying portion 4e of the reference seat 4, for example detecting and different cylinder block (casting body of type a difference dimension S ₁ and S ₂ of the identification unit 4e by exploring at stylus 8 ) 2, 2 'can be identified. Note that the stylus 8 may be replaced with a non-contact sensor.

Since the above-mentioned reference seat 4 is provided on the runner 3d and is hardly restricted by the shape of the cylinder block, it is possible to set a uniform reference shape and dimension for different types of cylinder blocks. It is. In this case, since one type of transport pallet can handle a plurality of types of castings, it is easy to support, position, transport, etc. the castings.

As described above, the cast product 1 placed on the transport pallet 5 after being separated from the mold is transported in a stable posture by the support of the reference seat 4, and the reference seat 4 is used as it is. It can be surely grasped. In this case, since the reference dimensions defined by the reference seat 4 are common to various cast products, the transfer device can be simplified, and the transfer between post-processing steps can be easily automated.

Since the type and the like of the casting 1 are identified by the identification unit 4e, it is easy to automate different processes for each type. In addition, when the casting 1 is held by the holding tool to remove the gate section such as the runner 3d, the optimal holding position, removing method, and transferring method can be selected for each type of the casting 1. This makes it possible to automate the process of removing the gate section.

In order to cast the casting 1, the molten metal is poured into a mold using molding sand or other refractory material. As described above, the reference seat 4 is provided on the runner 3d. It is shaped to be provided. For mold making,
Since the feature of the shape is clear from FIGS. 1 and 2, illustration of the mold itself is omitted. The present invention can be applied regardless of the type of the mold or the casting method.

[0019]

As described above, according to the present invention,
It is possible to make the cast product easy to handle in the post-processing after the mold release, and there is an effect that the post-processing process can be automated particularly in a multi-product casting line.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a casting and a pallet for conveyance according to an embodiment of the present invention.

FIG. 2 is a cutaway perspective view of a main part showing a shape of a sprue system from a pouring spout to a cough.

FIG. 3 is a diagram illustrating an identification unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casting product 2 Cylinder block 3a Filler 3b Filler 3c Weir 3d Runner 4 (4a-4d) Reference seat 4e Identification part 5 Transport pallet 6 (6a-6d) Support part

────────────────────────────────────────────────── ─── of the front page continued (72) inventor Koichi Ogawa Nagoya, Aichi Prefecture, Nishi-ku, Noritakeshin-cho, three-chome No. 36 Co., Ltd. Noritake Company Limited in Ted (58) investigated the field (Int.Cl. ^6, DB name ) B22C 9/08

Claims (4)

(57) [Claims] 1. A cast product provided with a reference seat for positioning provided in a gate section provided at the time of casting and removed after casting. 2. The casting according to claim 1, wherein the reference seat has an identification portion. 3. The casting according to claim 1, wherein the reference seat is formed in a shape corresponding to the casting carrier. 4. A mold formed by forming a reference seat for positioning a casting used after casting at a gate section of the casting.