Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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
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48/00
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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B29C48/25
Component parts, details or accessories; Auxiliary operations
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B29C48/36
Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
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B29C48/395
using screws surrounded by a cooperating barrel, e.g. single screw extruders
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B29C48/40
using two or more parallel screws; or at least two parallel non-intermeshing screws; , e.g. twin screw extruders
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B29C48/42
Non-identical or non-mirrored screws
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B29C48/42

INTERMITTENT EXTRUSION SYSTEM AND EXTRUSION DEVICE
20250303626 · 2025-10-02 ·

An intermittent extrusion system and an extrusion device are disclosed. The intermittent extrusion system includes a barrel and an extrusion unit. The extrusion unit includes a first screw and a second screw, both the first screw and the second screw are installed in the barrel and can rotate in the barrel, a screw thread of the first screw can mesh with a screw groove of the second screw, the first screw has at least one thread start, and the second screw has at least one thread start. The first screw rotates at a constant speed, while the second screw rotates intermittently, and a rotating direction of the first screw is opposite to that of the second screw.

INTERMITTENT EXTRUSION SYSTEM AND EXTRUSION DEVICE
20250303626 · 2025-10-02 ·

An intermittent extrusion system and an extrusion device are disclosed. The intermittent extrusion system includes a barrel and an extrusion unit. The extrusion unit includes a first screw and a second screw, both the first screw and the second screw are installed in the barrel and can rotate in the barrel, a screw thread of the first screw can mesh with a screw groove of the second screw, the first screw has at least one thread start, and the second screw has at least one thread start. The first screw rotates at a constant speed, while the second screw rotates intermittently, and a rotating direction of the first screw is opposite to that of the second screw.