multi-point needle valve
A needle valve and multi-point technology, applied in the field of needle valves, can solve problems such as difficult matching between valve needles and gates, complicated installation and disassembly of needle valves, easy leakage of valve needle sleeves, etc. The effect of operation stability and waste control
Inactive Publication Date: 2016-12-14
上海瀚典热流道科技有限公司
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] The invention discloses a multi-point needle valve, which is used to solve the problems in the prior art that the needle valve is complicated to install and disassemble, the valve needle sleeve is easy to leak material, and the valve needle and the gate are difficult to cooperate.
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Embodiment Construction
[0028] According to the claims of the present invention and the content disclosed in the summary of the invention, the technical solution of the present invention is specifically as follows:
[0029] The needle valve in the prior art has the problems of complicated installation and disassembly, easy material leakage of the valve needle sleeve, and difficult cooperation between the valve needle and the gate.
[0030] The invention discloses a multi-point needle valve to solve the above problems:
[0031] figure 1 It is a structural schematic diagram of the multi-point needle valve of the present invention, please refer to figure 1 , a multi-point needle valve, including:
[0032] A first needle valve, the specific structure of the first needle valve is:
[0033] A first hot nozzle 12 is set below a splitter plate 8, and a first cylinder block 2 is correspondingly arranged on the splitter plate 8, and a hot nozzle fixing screw 9 passes through the bottom of the first cylinder...
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The invention discloses a multipoint needle valve. The multipoint needle valve solves the prior art problems of complex installation and dismounting, easy leakage of a valve needle sleeve, and difficult cooperation of a valve needle and a cast gate. Through a change of a valve needle structure, installation and dismounting are simplified and mold modification time is reduced. Through an integrated gas circuit of a system, processing of gas circuit holes in a mold plate is avoided; mold processing difficulty is simplified; and processing time and a cost are reduced. The multipoint needle valve effectively resolves the problem of leakage caused by a hot runner system, avoids production stopping caused by material leakage, improves operation stability of the whole hot runner system, controls raw material waste, effectively controls a precision of cooperation between a valve needle and a cast gate, and realizes beautification of a cast gate mark on the surface of a plastic product.
Description
technical field [0001] The invention relates to a needle valve, in particular to a multi-point needle valve. Background technique [0002] The needle valve is a sealing valve, which is used to close the continuous flow of plastic in the molten state. Once the product is filled, the needle valve needle will be closed according to the signal source of the injection molding machine, so as to achieve the function of valve closure. [0003] At present, many hot runner companies produce multi-point needle valve hot runner systems, with oil pressure and pneumatic as valve needle power, and have designed many needle valve hot runners with different structures. Needle valve hot runner system technology is a It is a valuable invention that effectively solves the technical problems of high surface requirements and smooth and beautiful gate marks for plastic products. But there are still deficiencies in the current technology, the installation and disassembly are complicated, the valve...
Claims
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IPC IPC(8): B29C45/23
Inventor 杨喜成
Owner 上海瀚典热流道科技有限公司