GB990009A - Feeder for supplying plastic raw-material to a moulding press - Google Patents
Feeder for supplying plastic raw-material to a moulding pressInfo
- Publication number
- GB990009A GB990009A GB4233763A GB4233763A GB990009A GB 990009 A GB990009 A GB 990009A GB 4233763 A GB4233763 A GB 4233763A GB 4233763 A GB4233763 A GB 4233763A GB 990009 A GB990009 A GB 990009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- flap
- vacuum
- container
- motor
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
990,009. Feeding mechanism. A. B. JOCHUMSEN. Oct. 28, 1963 [Oct. 31, 1962], No. 42337/63. Heading B5A. [Also in Division B8] In a mechanism, for supplying powdered plastic material to a moulding press, the material is sucked from a trough 2 into a container 4, positioned above the press, by a rotary piston vacuum pump 21, the material being retained within the container by a screen 17 and supported therein by a flap 8 biased closed by a spring 11. The inlet pipe 20 of the pump is connected, via pipe 24 and throttle opening 26, to an air receiver 25, which carries a vacuum senser 27 which operates a switch 29 in the control circuit 14 of the pump motor 16. As the density of the material in the container increases the vacuum in the air receiver increases until at a certain value the sensing means 27 is actuated to open switch 29 and stop the motor 16. At this point the weight of the material opens flap 8, thus discharging the material into the moulding press (not shown) and opening switch 13, in control circuit 14. As the flap opens the pressure in the air receiver increases thus reclosing the switch 29. When all the material has been discharged the flap recloses thus reclosing the switch 13 and restarting the motor 16 to initiate another cycle. Any temporary increase in pressure due to e.g. blockage in feed pipe 3, is transmitted only slowly to the air-receiver due to the throttle opening 26 and does not operate the vacuum sensing means.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK470762A DK102986C (en) | 1962-10-31 | 1962-10-31 | Material supply device for a press and molding machine. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB990009A true GB990009A (en) | 1965-04-22 |
Family
ID=8135974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4233763A Expired GB990009A (en) | 1962-10-31 | 1963-10-28 | Feeder for supplying plastic raw-material to a moulding press |
Country Status (2)
| Country | Link |
|---|---|
| DK (1) | DK102986C (en) |
| GB (1) | GB990009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908357A (en) * | 2014-06-11 | 2015-09-16 | 东至县恒源工贸有限公司 | Vegetable seed flaking mill |
-
1962
- 1962-10-31 DK DK470762A patent/DK102986C/en active
-
1963
- 1963-10-28 GB GB4233763A patent/GB990009A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908357A (en) * | 2014-06-11 | 2015-09-16 | 东至县恒源工贸有限公司 | Vegetable seed flaking mill |
Also Published As
| Publication number | Publication date |
|---|---|
| DK102986C (en) | 1965-11-01 |
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