Extruder, cylinder for extruder, monitoring device, monitoring method, and program
By using an annular sealing gasket and pressure regulating part in the extruder barrel to form a closed space, the problem of gas leakage caused by changes in fastening force is solved, and the stability of the seal and timely detection of leakage are achieved.
CN121729313APending Publication Date: 2026-03-24THE JAPAN STEEL WORKS LTD
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Patent Information
- Application Number
- CN202480054764.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-28
- Filing Date
- 2024-04-05
- Publication Date
- 2026-03-24
AI Technical Summary
Technical Problem
The sealing effect of the existing extruder barrel fails due to repeated heating and cooling, which causes changes in the fastening force and leads to gas leakage.
Method used
Multiple unit blocks are connected by annular sealing gaskets to form a closed space. Equipped with a pressure regulating unit and a leakage monitoring unit, the closed space is filled with fluid at a pressure higher than that inside the barrel to monitor and prevent leakage.
Benefits of technology
It effectively prevents gas from leaking out of the barrel, ensures stable sealing function, promptly detects and notifies the gasket of deterioration, and ensures normal operation of the extruder.
✦ Generated by Eureka AI based on patent content.
Abstract
In an extruder (10), a cylinder (100) is configured such that end surfaces of a plurality of unit blocks (101) each having a hole into which a spiral portion can be inserted are connected to each other by a connection portion (130). The extruder (10) has a closed space (133) formed by enclosing a first gasket (131) and a second gasket (132) at a connection part (130), the first gasket (131) and the second gasket (132) surrounding the hole. Furthermore, the extruder (10) is provided with: a pressure adjustment unit (160) which is a mechanism configured so as to be able to adjust the pressure of the closed space (133) when the predetermined fluid is supplied to a predetermined set pressure higher than the internal pressure of the hole when the extruder (10) is operated; the leak monitoring portion (170) has a sensor configured to detect a leak of fluid in the enclosed space (133).
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