Active vacuum venting system
The active vacuum venting system effectively addresses air traps in mould cavities by evacuating and introducing gas, minimizing mould modifications and defects, enhancing moulding process efficiency and quality.
GB2638981APending Publication Date: 2025-09-10L UNIV TA MALTA +1
Patent Information
- Application Number
- GB2024003127
- Authority / Receiving Office
- GB · GB
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-09-10
Smart Images
Figure 00000000_0000_ABST
Abstract
An active vacuum venting system for a moulding system comprising a mould having an unsealed mould cavity 114, the venting system comprising a vacuum source; and at least one vent connector 200 to connect the vacuum source to the mould cavity, wherein the vacuum source evacuates the mould cavity during supply of moulding material into the cavity. A vacuum controller may be provided with an evacuation signal generator and may be programmed to control the vacuum source to selectively evacuate the cavity. At least one sensor may be provided, such as a contact, proximity, or pressure sensor. A gas source may be provided to introduce gas into the cavity responsive to the at least one sensor detecting ejection of an injection moulded product from the mould cavity. A vent channel 112 or venturi channel may provide access to the cavity. One or more vent inserts (figure 5a-5f) may be removably inserted into the vent channel to modify a vent area of the channel. An injection moulding system, a moulding system, and a method of operating a venting system are also provided.
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Citation Information
Patent Citations
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