GB510812A - Improvements in or relating to injection molding presses - Google Patents
Improvements in or relating to injection molding pressesInfo
- Publication number
- GB510812A GB510812A GB4604/38A GB460438A GB510812A GB 510812 A GB510812 A GB 510812A GB 4604/38 A GB4604/38 A GB 4604/38A GB 460438 A GB460438 A GB 460438A GB 510812 A GB510812 A GB 510812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- nozzles
- fluid
- plungers
- operating
- 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
- B29C45/03—Injection moulding apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
510,812. Hydraulic presses. MULLER, J. A., and TUCKER, W. R. Feb. 14, 1938, No. 4604. Convention date, May 14, 1937. [Class 69 (ii)] [Also in Group V] A device for moulding plastic materials comprises a fixed die 10, Fig. 4, a co-operating hydraulically-operated die 11, and movable injection nozzles 73 adapted to inject the material to be moulded through inlets 14 formed between the surfaces of the closed mould parts or dies 10, 11. The nozzles may supply materials of different colours. The movable die 11 is carried by an hydraulically-operated plunger 17, Fig. 3, movable in a cylinder 18 connected at its upper part with a surge valve 40 and with an inlet 159 for fluid. A fixed plunger 28 is arranged within the main plunger 17 and is provided with inlet and exhaust connections 177, 178 for fluid pressure, whereby the main plunger may be lowered rapidly to close the dies, fluid then being admitted through the inlet 159 to hold the dies forcibly together during the injection operation. The nozzles 73, Figs. 2 and 4, together with hoppers 87 for plastic material are carried on slides 56 and are moved to and from the inlets 14 by hydraulically-operated plungers 108, 109. Each nozzle is heated by circulation of fluid around ribs 62 in a forward part that is insulated at 74 from a cooled tubular part 82 fed by a motor-driven worm 84 with powdered material from the hopper 87. In operation, the nozzles are moved into the inlets 14 in the mould parts, and plungers 125 are advanced by hydraulicallyoperated pistons 122 to inject the material between the mould or die parts. The plungers 125 are adjustably connected to their pistons 122, and the operating pistons 108, 109 to the slide 56, whereby the nozzles are adjusted to die or mould parts of different dimensions. The control of the fluid for operating the die-closing ram, and the control of the motor for operating the worm 84 are effected by switches operated by the movements of the nozzle-carrying slides and of the ejecting plungers 125.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US510812XA | 1937-05-14 | 1937-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB510812A true GB510812A (en) | 1939-08-09 |
Family
ID=21969206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4604/38A Expired GB510812A (en) | 1937-05-14 | 1938-02-14 | Improvements in or relating to injection molding presses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB510812A (en) |
-
1938
- 1938-02-14 GB GB4604/38A patent/GB510812A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2938232A (en) | Combined injection and compression molding | |
| US2828507A (en) | Injection molding press having valved gate | |
| US4334847A (en) | Injection molding device for molding bodies of natural or synthetic rubber | |
| GB1320087A (en) | Injection moulding press | |
| US2202140A (en) | Injection molding apparatus | |
| ES375083A1 (en) | Mold-closing means, particularly for die-casting and injection molding machines for metals and synthetics | |
| US2436122A (en) | Injection molding apparatus | |
| US2404559A (en) | Plastic slug forming and feeding mechanism | |
| US3189945A (en) | Injection molding apparatus | |
| US2293304A (en) | Plastic extrusion molding machine | |
| GB1307865A (en) | Injection molding machine | |
| GB1409952A (en) | Injection moulding apparatus | |
| US2344176A (en) | Method of and machine for molding plastics | |
| US2410909A (en) | Upward acting molding press | |
| GB510812A (en) | Improvements in or relating to injection molding presses | |
| GB643847A (en) | Plastics molding machine | |
| US2410324A (en) | Machine for molding thermosetting materials | |
| GB831192A (en) | Improvements in and relating to apparatus for injection moulding plastic materials | |
| GB551468A (en) | Improvements in and relating to the moulding of materials by injection | |
| US2296730A (en) | Injection molding machine with inclined clamps | |
| GB1121661A (en) | Improvements relating to the moulding of shoe soles | |
| GB1235270A (en) | Apparatus for feeding and preheating plastic molding resin in particulate form | |
| GB675652A (en) | Improvements in and relating to machines for moulding plastic materials | |
| GB1286888A (en) | Injection device for injection moulding machine | |
| ES334406A1 (en) | Injector press for obtaining multicoloured pieces in plastic material |