GB699894A - Apparatus for automatically stopping a diecasting machine in the event of shot failure - Google Patents
Apparatus for automatically stopping a diecasting machine in the event of shot failureInfo
- Publication number
- GB699894A GB699894A GB10166/52A GB1016652A GB699894A GB 699894 A GB699894 A GB 699894A GB 10166/52 A GB10166/52 A GB 10166/52A GB 1016652 A GB1016652 A GB 1016652A GB 699894 A GB699894 A GB 699894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- plunger
- air
- passage
- controlling
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
699,894. Casting-machines. PLASCO, Ltd. April 22, 1952 [July 19, 1951], No. 10166/52. Class 83 (i). [Also in Groups XXVI and XXVIII] A die-casting machine comprises a gooseneck 13 from which molten metal is discharged by an air-operated plunger 15, means including a slide-valve 41 for controlling the plunger, and means 29 adjustable on, and movable with, the plunger for rendering inoperative during normal motions of the plunger a means 35 for actuating a switch 38 controlling a motor 39 controlling the machine. The motor controls the machine by driving a cam-shaft 46 having a cam 44 which adjusts the setting of the valve 41 controlling the supply of compressed air from a pipe 49 to a cylinder 18 where it acts on a piston 20 to displace the plunger 15 against the influence of a spring 23. A rise 54 on the cam displaces the valve from the setting illustrated, in which a passage 48 conveyes the air to the cylinder through a pipe 50, to align a further passage 55 in the valve with by-pass pipes 53, 56 which convey the air to a valve 31. This valve which is connected by a pipe 33 to the airoperated spring-returned plunger 35 to actuate the micro-switch 38 for stopping the motor 39, is retained seated, when the plunger is operating normally and at the bottom of its stroke, by an adjusting-screw 29 carried by the plunger. If the plunger is prevented from making its full stroke, the screw 29 consequently being clear of the valve stem 30, as by some interference with the escape of the metal at the nozzle 17, the by-passed air will raise the valve 31 and the plunger 35 to operate the micro-switch 38 and stop the motor. A lateral extension is formed in the passage 48 to facilitate the exhaust of air from the cylinder 18 through the passage 48 and a passage 59 in the casing 40 of the valve 41 in the normal automatic cycle. Air is exhausted from the pipes 33, 56 through a passage 57 in the valve and a port 58 in the valve casing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US699894XA | 1951-07-19 | 1951-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB699894A true GB699894A (en) | 1953-11-18 |
Family
ID=22092432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10166/52A Expired GB699894A (en) | 1951-07-19 | 1952-04-22 | Apparatus for automatically stopping a diecasting machine in the event of shot failure |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB699894A (en) |
-
1952
- 1952-04-22 GB GB10166/52A patent/GB699894A/en not_active Expired
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