JPH0443441U - - Google Patents
Info
- Publication number
- JPH0443441U JPH0443441U JP8283890U JP8283890U JPH0443441U JP H0443441 U JPH0443441 U JP H0443441U JP 8283890 U JP8283890 U JP 8283890U JP 8283890 U JP8283890 U JP 8283890U JP H0443441 U JPH0443441 U JP H0443441U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- upper wall
- vent hole
- mold making
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007664 blowing Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
第１図乃至第６図は本考案の実施例を示し、第
１図は実施例１のベントホールの一部切欠斜視図
、第２図は実施例１の開閉弁の平面図、第３図は
実施例２のベントホール要部断面図、第４図は実
施例３の第１図相当図、第５図は実施例４の第１
図相当図、第６図は実施例４の底面図である。第
７図は鋳型造型装置の鋳物砂充填工程を示す断面
図、第８図は鋳型造型装置の硬化ガス吹込み工程
を示す断面図、第９図は従来のベントホールを示
す第１図相当図である。
１……鋳型造型装置、９……硬化ガス、１１…
…鋳物砂、１３……筒本体、１５……上壁、１６
……通気孔、１７……通気路、１８……弁体、１
９……閉弁バネ、２０……開閉弁。
1 to 6 show embodiments of the present invention, FIG. 1 is a partially cutaway perspective view of the vent hole of Embodiment 1, FIG. 2 is a plan view of the on-off valve of Embodiment 1, and FIG. 3 is a sectional view of the main part of the vent hole in Example 2, FIG. 4 is a view corresponding to FIG. 1 in Example 3, and FIG.
FIG. 6 is a bottom view of the fourth embodiment. Figure 7 is a sectional view showing the molding sand filling process of the mold making equipment, Figure 8 is a sectional view showing the hardening gas blowing process of the mold making equipment, and Figure 9 is a view equivalent to Figure 1 showing a conventional vent hole. It is. 1... Mold making device, 9... Curing gas, 11...
...Casting sand, 13...Cylinder body, 15...Top wall, 16
...Vent hole, 17...Vent passage, 18...Valve body, 1
9... Valve closing spring, 20... Opening/closing valve.
Claims (1)
上壁１５に通気孔１６を透設して通気孔１６と筒
本体１３の下端部開口とを通気路１７で連通させ
た、吹込式鋳型造型装置１に使用されるベントホ
ールにおいて、 上壁１５よも下端部側に開閉弁２０を付設する
とともに、この開閉弁２０を通気孔１６または通
気路１７を封止可能にする弁体１８と、この弁体
１８を上壁１５側に弾圧付勢する閉弁バネ１９と
から構成し、 閉弁バネ１９のバネ設定圧力を、鋳物砂１１充
填圧力より低く設定するとともに鋳物砂硬化ガス
９充填圧力よりも高く設定したことを特徴とする
鋳型造型用ベントホール。 ２ 上記弁体１８を閉弁時に上壁１５の下面に接
当させて通気孔１６を封止可能に構成したことを
特徴とする実用新案登録請求の範囲第１項に記載
の鋳型造型用ベントホール。 ３ 開閉弁２０の弁体１８と閉弁バネ１９とを一
体に構成したことを特徴とする実用新案登録請求
の範囲第１項または第２項に記載の鋳型造型用ベ
ントホール。[Claims for Utility Model Registration] 1. An upper wall 15 is provided at the upper end of the cylinder body 13, and a ventilation hole 16 is provided in the upper wall 15 to allow ventilation between the ventilation hole 16 and the opening at the lower end of the cylinder body 13. In the vent hole used in the blowing mold making apparatus 1, which is communicated with the air passage 17, an on-off valve 20 is attached to the lower end side of the upper wall 15, and this on-off valve 20 is connected to the vent hole 16 or the air passage 17. It consists of a valve body 18 that enables sealing, and a valve-closing spring 19 that presses the valve body 18 toward the upper wall 15. A vent hole for mold making, characterized in that the pressure is set low and higher than the filling pressure of foundry sand hardening gas. 2. The vent for mold making according to claim 1 of the patent registration claim, characterized in that the valve body 18 is configured to be able to abut the lower surface of the upper wall 15 to seal the vent hole 16 when the valve is closed. hole. 3. The vent hole for mold making according to claim 1 or 2, wherein the valve body 18 of the on-off valve 20 and the valve-closing spring 19 are integrally constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283890U JPH0534837Y2 (en) | 1990-08-03 | 1990-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283890U JPH0534837Y2 (en) | 1990-08-03 | 1990-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0443441U true JPH0443441U (en) | 1992-04-13 |
| JPH0534837Y2 JPH0534837Y2 (en) | 1993-09-03 |
Family
ID=31630001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283890U Expired - Lifetime JPH0534837Y2 (en) | 1990-08-03 | 1990-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534837Y2 (en) |
-
1990
- 1990-08-03 JP JP8283890U patent/JPH0534837Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0534837Y2 (en) | 1993-09-03 |