Claims
- 1. A hot chamber die casting machine for processing molten metals, the machine comprising
- machine frame means, and a mold closing means mounted on the machine frame means and having a crosshead,
- a control piston means slidable with respect to the crosshead,
- a mold mounting table means displaceable with respect to said machine frame means,
- a scissors-type linkage means arranged below the closing means for adjusting a position of the mold closing means relative to the machine frame means,
- the scissors-type linkage means comprising at least a pair of levers, each of which is a two armed lever,
- means for pivotally connecting the levers to each other arranged in a center area of each of the levers,
- one arm of a first of the levers mounted at the crosshead with the second arm of the first lever resting on a guide surface means of the machine frame means,
- one arm of a second of the levers being arranged so as to be acted upon by said control piston means, with the second arm of said second lever resting against a bottom surface of said displaceable mold mounting table, and
- drive means for spreading the scissors-type linkage means so as to enable an adjustment of the mold closing means.
- 2. A hot chamber die casting machine according to claim 1, wherein
- a second mold mounting table against which said displaceable mold mounting table is pressed, and a toggle lever means for connecting one of the mounting table means with the cross head.
- 3. A hot chamber die casting machine according to claim 2, further comprising guide bar means on the machine frame means for mounting the closing means on the machine frame means arranged so as to be inclined relative to a substantially horizontal plane.
- 4. A hot chamber die casting machine according to claim 2, wherein
- said second mold mounting table is fixedly mounted at the mold closing means.
- 5. A hot chamber die casting machine for processing molten metals, the machine including machine frame means, and a mold closing means mounted on frame means, comprising
- the closing means including a crosshead, a pair of mold mounting tables adapted to be pressed together, and a toggle lever means for connecting one of the mounting table means with the crosshead,
- a scissors-type linkage means arranged below the closing means for adjusting a position of the closing means relative to the frame means,
- the scissors-type linkage means comprising at least a pair of levers, and means for pivotally connecting the levers to each other,
- one of the mold mounting tables being fixedly mounted at the closing unit and the other mold mounting table is displaceably mounted at the closing unit, and the scissors-type linkage means resting against a bottom surface of the crosshead and against the displaceably mounted mold mounting table,
- drive means for spreading the scissors-type linkage means so as to enable an adjustment of the closing means,
- the drive means comprising a hydraulic cylinder accommodated in the crosshead, and a control piston displaceably mounted in the hydraulic cylinder and cooperable with the scissors-type linkage means so as to spread the scissors-type linkage means.
- 6. A hot chamber die casting machine according to claim 5, wherein
- each of the levers of said scissors-type linkage means is a two armed lever, and further comprising
- means for pivotally connecting said levers positioned in a center area of each of the said levers, one arm of a first of the levers being mounted at the crosshead with the second arm of the first lever resting on a guide surface means of frame means, one arm of a second of the levers being arranged so as to be acted upon by the control piston, with the second arm of said second lever resting against a bottom surface of the displaceable mold mounting table.
- 7. A hot chamber die casting machine according to claim 6, wherein said one arm of the second lever is disposed in proximity to said one arm of said first lever.
- 8. A hot chamber die casting machine according to claim 7, wherein
- the guide surface means of the frame means is a guideway for the mold closing means.
- 9. A hot chamber die casting machine according to claim 8, wherein
- the drive means further comprises
- a controllable hydraulic circuit means having a pressure medium source means for supplying a pressure medium to the hydraulic cylinder, and
- control valve means for controlling a supply of the pressure medium to the hydraulic cylinder.
- 10. A hot chamber die casting machine according to claim 9, wherein the control valve means comprises
- electromagnetic valves arranged in the hydraulic circuit.
- 11. A hot chamber die casting machine for processing molten metals, the machine comprising
- machine frame means, and a mold closing means mounted on a frame means,
- the mold closing means comprising a crosshead, a pair of mold mounting tables adapted to be pressed together, and a toggle lever means for connecting one of the mounting table means with the crosshead,
- a scissors-type linkage means arranged below the mold closing means for adjusting a position of the closing means relative to the frame means,
- the scissors-type linkage means comprising a first pair of levers disposed on one lateral side of the crosshead and a second pair of levers disposed on an opposite lateral side of the crosshead,
- each of the levers is a two armed lever,
- means for pivotally connecting the levers to each other arranged in a center area of each of the levers,
- one arm of a first of the levers mounted at the crosshead with the second arm of the first lever resting on a guide surface means of the frame means,
- a control piston,
- one arm of a second of the levers arranged so as to be acted upon by said control piston, with the second arm of said second lever resting against a bottom surface of a displaceable mold mounting table,
- cross bar means for connecting a first end of each of the first pair of levers to each other, and
- drive means acting upon the crossbar means for spreading the scissors-type linkage means so as to enable an adjustment of the closing means.
- 12. A hot chamber die casting machine according to claim 11, wherein the first pair of lever means are disposed symmetrically with respect to a longitudinal center axis of the mold closing means.
- 13. A hot chamber die casting machine for processing molten metals, the machine including machine frame means, and a mold closing means mounted on frame means,
- the mold closing means including a crosshead, a pair of mold mounting tables adapted to be pressed together, a toggle lever means for connecting one of the mounting table means with the crosshead,
- a scissors-type linkage means arranged below the closing means for adjusting a position of the closing means relative to the frame means,
- the scissors-type linkage means comprising a first pair of levers disposed on one lateral side of the crosshead and a second pair of levers disposed on an opposite lateral side of the crosshead, cross bar means for connecting a first end of each of the first pair of levers to each other, the first pair of levers being disposed symmetrically with respect to a longitudinal center axis of the closing means,
- drive means for spreading the scissors-type linkage means so as to enable an adjustment of the mold closing means comprising a hydraulic cylinder accommodated in the crosshead, and a control piston displaceably mounted in the hydraulic cylinder, the control piston acting upon the cross bar means so as to depress the same.
- 14. A hot chamber die casting machine according to claim 13, wherein a first end of each of the second pair of levers is pivotally connected to the crosshead and a second end of each of the second pair of levers rests on a guide surface means of the frame means, and a second end of the first pair of levers rests on a bottom surface of one of the mounting tables.
- 15. A hot chamber die casting machine according to claim 14, wherein the guide surface means of the frame means is a guideway for the mold closing means formed between the guide bar means.
- 16. A hot chamber die casting machine according to claim 15, wherein the drive means further includes a controllable hydraulic circuit means having a pressure medium source means for supplying a pressure medium to the hydraulic cylinder, and control valve means for controlling a supply of the pressure medium to the hydraulic cylinder.
- 17. A hot chamber die casting machine according to claim 16, wherein the control valve means includes electromagnetic valves arranged in the hydraulic circuit.
- 18. A hot chamber die casting machine for processing molten metals, the machine including machine frame means, and a mold closing means mounted on frame means comprising,
- a scissors-type linkage means arranged below the mold closing means for adjusting a position of the mold closing means relative to the frame means, and
- drive means for spreading the scissors-type linkage means so as to enable an adjustment of the closing means, wherein
- the drive means includes a hydraulic cylinder accommodated in the mold closing means, a control piston displaceably mounted in the hydraulic cylinder, and the control piston acts upon the scissors-type linkage means so as to spread the same.
- 19. A hot chamber die casting machine for processing molten metals, the machine comprising machine frame means, and a mold closing means mounted on the frame means and having a crosshead, a scissors-type linkage means arranged below the closing means for adjusting a position of the closing means relative to the frame means, wherein
- the scissors-type linkage means comprises a first pair of levers disposed on one lateral side of the mold closing means and a second pair of levers disposed on an opposite lateral side of the mold closing means,
- each lever being a two armed lever,
- means for pivotally connecting the levers to each other arranged in a center area of each of the levers,
- one arm of a first of the levers mounted at the crosshead with the second arm of the first lever resting on a guide surface means of the frame means,
- a control piston,
- one arm of a second of the levers arranged so as to be acted upon by said control piston, with the second arm of said second lever resting against a bottom surface of a displaceable mold mounting table,
- cross bar means are provided for connecting a first end of each of the first pair of levers to each other, and
- drive means acting upon the cross bar means for spreading the scissors-type linkage means so as to enable an adjustment of the mold closing means.
- 20. A hot chamber die casting machine for processing molten metals, the machine comprising frame means, and a mold closing means mounted on frame means, a scissors-type linkage means arranged below the closing means for adjusting a position of the closing means relative to the frame means,
- the scissors-type linkage means comprising a first pair of levers disposed on one lateral side of the closing means and a second pair of levers disposed on an opposite lateral side of the closing means,
- cross bar means for connecting a first end of each of the first pair of levers to each other, wherein a first end of each of the second pair of levers is pivotally connected to the closing unit and a second end of each of the second pair of levers rests on a guide surface means of the frame means, and
- drive means acting upon said cross bar means for spreading the scissors-type linkage means so as to enable an adjustment of the mold closing means.
- 21. A hot chamber die casting machine according to claim 20, wherein
- the drive means includes a hydraulic cylinder accommodated in the mold closing means, and a control piston displaceably mounted in the hydraulic cylinder, the control piston acting upon the cross bar means so as to depress the same.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3018288 |
May 1980 |
DEX |
|
Parent Case Info
This is a continuation of application Ser. No. 263,063, filed May 13, 1981, now abandoned.
US Referenced Citations (3)
Continuations (1)
|
Number |
Date |
Country |
Parent |
263063 |
May 1981 |
|