Back to results
US 12,502,812 B2Granted
Pet preform injection system and production method
AssigneeFr Makina Ve Muhendislik Anonim Sirketi
InventorRamazan Akar
Life of this patent
Estimating the term…
Abstract
The invention is related to the production of pet preform and similar plastic products, as well as similar-shaped metallic pieces manufactured by plastic injection.
Claims6
A pet preform injection system comprising an injection unit (10) configured to sends a molten material (e) to a mold space;
- a cam (20) configured to eject the pet preforms produced from a mold;
- a cavity (30) configured to define an outer geometry of the pet preforms by spraying the molten material (e) onto its walls;
- a cavity housing (40) bears the cavity (30) and comprising internal channels circulating cooling water within the cavity (30);
- a claw (70) configured to forms mouths of the pet preforms;
- and a core (80) configured to forms an inner geometry of the pet preforms, wherein
- a nozzle (50) connected to the injection unit (10) by means of a nozzle socket (60), the nozzle (50) comprising a slot (51) at a part that enters the inner surface of the cavity (30) in the shape of the inner surface of the pet preform, in order to provide the plastering of the molten material (e) to the cavity (30) walls from the inside.
3 more elements
A pet preform production method for producing pet preform in the plastic injection molding industry, the method comprising;
- a) inserting a nozzle (50) in close proximity to an internal wall of a cavity (30), and rotating the nozzle (50) around y axis of the cavity (30), wherein molten material (e) is discharged from a slot (51) on the nozzle (50) and coats the cavity (30) walls,
- b) rotating the cavity (30) around the y axis rapidly and adhering the molten material (e) to the cavity (30) walls thoroughly under the effect of the centrifugal force and meanwhile, ejecting an injection unit (10) from the cavity (30),
- c) positioning the cavity (30) in alignment with a core (80) and a claw (70), wherein the core (80) forming the final shape of the pet preform by entering from the cavity (30) whose surface is plastered with molten pet and center of the claw (70),
- d) removing the core (80) from the cavity (30) and ejecting the obtained pet preform from a mold by means of a cam (20) and by forward movement of the claw (70).
1 more element
Dependencies are inferred from the claim text.