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US 2024/0375324 A1Published application
Pet preform injection system and production method
AssigneeFr Makina Ve Muhendislik Anonim Sirketi
InventorRAMAZAN AKAR
Life of this patent
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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
Pet preform injection system comprising an injection unit (10) that sends the molten material (e) to the mold space:
- a cam (20) that ejects the pet preforms produced from the mold, a cavity (30) that forms the outer geometry of the pet preforms by the spraying of the molten material (e) onto its walls, a cavity housing (40) which bears the cavity (30) and has the internal channels circulating the cooling water in the cavity (30), a claw (70) that forms the mouths of the pet preforms being produced, and a core (80) that forms the inner geometry of the pet preforms, characterized in that;
- it comprises a nozzle (50) that bears to the injection unit (10) by means of a nozzle socket (60), comprising a slot (51) at the 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.
Pet preform production method which provides for producing pet preform in the plastic injection pet preform production industry, characterized in that it comprises the process steps of:
- a) The nozzle (50) entering in a manner that is close to the internal wall of the cavity (30), and as it spins around the y axis of the cavity (30) once, the molten material (e) which comes from the slot (51) on the nozzle (50) coating the cavity (30) walls,
- b) After the coating is finished, the cavity (30) rotating again 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, the injection unit (10) being ejected from the cavity (30),
- c) The cavity (30) being brought to the same centripetal position with the core (80) in order to give the final shape to the pet preform and the core (80) forming the final shape of the preform by entering from the cavity (30) whose surface is plastered with the molten pet and the center of the claw (70),
- d) The core (80) being ejected from the cavity (30) and the obtained pet preform being ejected out by means of the cam (20) and by the forward movement of the claw (07).
1 more element
Dependencies are inferred from the claim text.