Single-nozzle needle valve
A single nozzle and needle valve technology, applied in the field of needle valve, can solve the problems of dead angle, residual material, unclean material flow, etc., and achieve the effect of convenient processing, low process requirements and simple structure
Inactive Publication Date: 2021-07-30
陈治国
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Problems solved by technology
In this process, there is a dead angle at the connection between the inclined flow channel and the straight channel, the material flow is not clean, and there is residual material at the dead angle; the position where the oil cylinder or cylinder contacts the bottom of the inclined body in the cylinder body cannot be cooled well
Method used
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[0033] A single-nozzle needle valve, comprising a cylinder body 1, a cylinder head 2 arranged at the top of the cylinder body 1, a nozzle 3 arranged at the bottom of the cylinder body 1, and a power cylinder 4 arranged inside the cylinder body 1, the cylinder body 1 There is a power cylinder installation cavity 5 and a cylinder body flow channel 6 inside, a material inlet 7 is provided on the top of the cylinder head 2, and a cylinder head flow channel connecting the cylinder body flow channel 6 and the material inlet 7 is arranged inside the cylinder head 2 8. The bottom of the cylinder flow channel 6 communicates with the discharge channel 9 in the nozzle 3, and the material channel 9 is provided with a valve needle 10, and the top of the valve needle 10 is connected to the output end of the power cylinder 4, and through the power cylinder 4 Push the valve needle 10 to move and then control the opening and closing of the discharge channel 3 .
[0034] As a preferred implemen...
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The invention discloses a single-nozzle needle valve. The single-nozzle needle valve comprises a cylinder body, a cylinder cover arranged at the top of the cylinder body, a nozzle arranged at the bottom of the cylinder body and a power cylinder arranged in the cylinder body, a power cylinder mounting cavity and a cylinder body runner are formed in the cylinder body, and a material inlet is formed in the top of the cylinder cover; and a cylinder cover runner communicating with the cylinder body runner and the material inlet is arranged in the cylinder cover, the bottom of the cylinder body runner communicates with a discharging channel in the nozzle, a valve needle is arranged in the discharging channel, the top of the valve needle is connected with the output end of the power cylinder, and the power cylinder pushes the valve needle to move so as to control opening and closing of the discharging channel. When the single-nozzle needle valve is used, during plastic replacement injection molding in a process with color-changing injection molding requirements, materials are not changed; and due to the arrangement of a cylinder body cooling device, no matter the cylinder body is at any temperature, the temperature of an oil cylinder or an air cylinder cannot rise.
Description
technical field [0001] The invention relates to the field of needle valves, in particular to a single nozzle needle valve. Background technique [0002] At present, the single-nozzle needle valve plastic flows into the straight channel through the inclined flow channel and then flows into the inclined flow channel to the nozzle to flow out. In this process, there is a dead angle at the junction of the inclined runner and the straight channel, the material flow is not clean, and there is residual material at the dead angle; the position where the oil cylinder or cylinder contacts the bottom of the inclined body in the cylinder body cannot be cooled well. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the technical solution provided by the present invention is: a single-nozzle needle valve, including a cylinder body, a cylinder head arranged on the top of the cylinder body, a nozzle arranged on the bottom of the cylinder body, an...
Claims
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IPC IPC(8): B29C45/28B29C45/27B29C45/72
CPCB29C45/27B29C45/2806B29C45/281B29C45/72
Inventor 陈治国
Owner 陈治国