GB1207202A - Hydraulic operating device for the ejecting device of a moulding machine - Google Patents
Hydraulic operating device for the ejecting device of a moulding machineInfo
- Publication number
- GB1207202A GB1207202A GB1935968A GB1935968A GB1207202A GB 1207202 A GB1207202 A GB 1207202A GB 1935968 A GB1935968 A GB 1935968A GB 1935968 A GB1935968 A GB 1935968A GB 1207202 A GB1207202 A GB 1207202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- line
- valve
- return
- cylinder
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
1,207,202. Injection moulding. ECKERT & ZIEGLER G.m.b.H. 24 April, 1968 [7 June, 1967], No. 19359/68. Heading B5A. [Also in Division F1] A floating piston 5, 6 is movable through an adjustable stroke in a closed cylinder 4, thereby to displace a predetermined volume of hydraulic fluid from a chamber 9 through a line 15 to a cylinder chamber 14 and thus cause proportional displacement of a piston 2 operating the ejecting device of a moulding machine. The stroke of the piston 5, 6, and consequently the piston 2, is adjusted by a setting pin 11 screwed into the cylinder 4 and locked by a sleeve 12. To move the floating piston 5, 6 to the right, a valve 19 is operated to cause pressurization of a line 22. Movement of the piston 5, 6 expels fluid from an annular space 8 in the cylinder 4 through a non-return valve 26 and lines 27, 28, 24 to a tank 21. Reversal of the valve 19 pressurizes the line 24 to return the piston 2. At the end of the return stroke, the resulting pressure build-up in the line 28 opens a valve 25 thereby connecting the annular space 8 to pressure and ensuring the complete return of the piston 5, 6. Leakage from the chambers 9, 14 and the line 15 is made-up through a line 16 including a non-return valve 17.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE0034140 | 1967-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1207202A true GB1207202A (en) | 1970-09-30 |
Family
ID=7076611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1935968A Expired GB1207202A (en) | 1967-06-07 | 1968-04-24 | Hydraulic operating device for the ejecting device of a moulding machine |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1729147C3 (en) |
| FR (1) | FR1565245A (en) |
| GB (1) | GB1207202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157771A (en) * | 1984-04-19 | 1985-10-30 | Teledyne Ind | Actuator control system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584791A (en) * | 2016-12-24 | 2017-04-26 | 浙江工商职业技术学院 | Oil cylinder rack driving type coarse pitch internal thread disengaging mechanism |
| CN106584796A (en) * | 2016-12-26 | 2017-04-26 | 浙江工商职业技术学院 | Oil cylinder driving ejection core pulling mechanism |
-
1967
- 1967-06-07 DE DE19671729147 patent/DE1729147C3/en not_active Expired
-
1968
- 1968-04-24 GB GB1935968A patent/GB1207202A/en not_active Expired
- 1968-05-10 FR FR1565245D patent/FR1565245A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157771A (en) * | 1984-04-19 | 1985-10-30 | Teledyne Ind | Actuator control system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1729147B2 (en) | 1974-12-05 |
| DE1729147A1 (en) | 1971-06-09 |
| DE1729147C3 (en) | 1975-07-31 |
| FR1565245A (en) | 1969-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |