Salzgitter has patented a feeding apparatus designed for pasty masses, particularly silicone, for injection molding machines. The apparatus features an exchangeable cartridge pressing cylinder made of polymer, minimizing cleaning interruptions and material loss during the use of different pasty masses. GlobalData’s report on Salzgitter gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Feeding apparatus for pasty masses in injection molding machines
The patent US12042967B2 describes a feeding apparatus designed for delivering a pasty mass to an injection molding machine. Central to this apparatus is a pressing cylinder configured as a cartridge, which is made from polymer material and can be interchangeably inserted into a supporting housing. The pressing cylinder houses a pressing plunger that pushes the pasty mass through a squeezing nozzle. The supporting housing features a modular design, consisting of an upper and lower half shell that can be folded open laterally around a swivel axis. This design allows for easy access to the cartridge, which is secured by front and rear closure plates that also provide passage openings for the squeezing nozzle and the push rod of an axial actuating drive, respectively.
Further claims detail the structural features of the feeding apparatus, including tongue/groove connections between the half shells and the closure plates, which facilitate axial engagement. The design allows for the push rod to connect sequentially to the rear closure plate and then to the pressing plunger after cartridge insertion. The lower half shell is fixed to the front closure plate, while the upper half shell is axially displaceable, enabling the cartridge to be securely positioned. Additionally, the cartridge is equipped with a circumferential driver groove for engagement with the upper half shell, and a positioning groove that aids in aligning the cartridge during insertion. A distance measuring apparatus is also included to monitor the axial position of the push rod, enhancing the operational precision of the feeding apparatus.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
