Plastic Radiator Valve Monobloc Injection Molding
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Solution Overview
Problem
The existing connection methods between metal radiator valves and plastic pipes require additional adapters, leading to energy losses, increased labor costs, and leakage risks due to threaded connections, which are inefficient and costly.
Innovation Solution
A production method for plastic-based radiator valves that integrates the valve body and adapter as a single, monobloc component using a plastic injection mold, eliminating the need for intermediary adapters and enabling direct socket welding to plastic pipes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If metal radiator valves are connected to plastic pipes using threaded connections with plastic adapters, then the connection between different materials is enabled, but energy losses occur and the system complexity increases
Solution Approach 1:
The invention merges the radiator valve body and the plastic adapter into a single integrated plastic component. The valve body is now made of plastic material that can be directly socket-welded to plastic pipes, eliminating the need for a separate plastic adapter. This integration maintains connection compatibility while removing the additional connection points that cause energy losses in the heating system.
Solution Approach 2:
The invention uses composite construction by integrating metal valve components (insert, spout, handle) with a plastic valve body. The plastic body provides compatibility with plastic piping systems through direct socket welding, while metal components provide the necessary mechanical strength and sealing functions. This composite approach enables direct connection to plastic pipes without additional adapters.
2Adaptability or versatility
If plastic adapters are used as intermediary components for connection, then connection between metal valves and plastic pipes is achieved, but the device complexity and number of components increase
Solution Approach 1:
The invention combines the previously separate valve body and plastic adapter into a single integrated component. The plastic valve body directly incorporates the connection features needed for socket welding to plastic pipes, eliminating the intermediary adapter. This reduces the total component count and simplifies the overall assembly while maintaining full connection capability.
3Ease of manufacture
If threaded connection systems are used for assembly, then the connection is achievable with standard methods, but the risk of leakage increases and labor costs rise
Solution Approach 1:
The invention replaces the threaded mechanical connection system with a socket welding system. Instead of using threads and seals that are prone to leakage, the plastic valve body is directly socket-welded to the plastic pipe, creating a seamless, leak-free connection. This substitution maintains ease of manufacture through standard plastic welding procedures while dramatically improving connection reliability.
4Adaptability or versatility
If additional plastic adapter components are used for connection, then material compatibility is achieved, but production costs and assembly time increase
Solution Approach 1:
The invention integrates the adapter functionality directly into the valve body, creating a single-component solution. The plastic valve body includes all necessary features for direct socket welding to plastic pipes, eliminating the need for a separate adapter component. This integration maintains full material compatibility while reducing assembly steps and increasing productivity.
Data Source
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AI summary
The invention is the method for manufacturing, inside at least one mold (4), the plastic based radiator valve (1) characterized in that it comprises the steps of positioning the spherical valve interior set (2) on the insert (1.1) inside the stationary mold core (4.2), moving of the movable mold core (4.1) in a synchronous manner with the closing of the mold (4) in the direction of (B), pushing of the spherical valve interior set (2) and/or insert (1.1) by the movable mold core (4.1) in the direction of (A), in order to secure the same, pushing of the plastic material into the mold (4) by an injection machine, thus shaping the valve body (1.5) surrounding the insert (1.1) and the spherical valve interior set (2), and the plastic adapter (3) positioned as the continuation of the valve body (1.5).