Pin-shaped self-locking nozzle device
A nozzle device, self-locking technology, applied in the field of nozzle devices, can solve problems such as complex structure, increased injection pressure, unstable needle pressure, etc., and achieve the effect of simple and compact structure, convenient and safe operation
Inactive Publication Date: 2013-05-29
ZHUHAI COLLEGE OF JILIN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the existing problems in the prior art such as increased injection pressure, complex structure, unstable needle pressure, etc., and to provide a needle-shaped Equipment for self-locking nozzles
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[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0019] figure 1 and figure 2 Shown is a preferred embodiment of the needle-shaped self-locking nozzle device 1 of the present invention, which includes a connecting flange 2, a nozzle outer cover 3, a nozzle cover 4, a needle valve 5 and a needle valve driving mechanism, etc., and the connecting flange 2. The nozzle cover 3 and the nozzle cover 4 constitute the base body of the nozzle device 1. The base has a molten material flow channel 6 passing through the connecting flange 2, the nozzle cover 3 and the nozzle cover 4 in sequence. The molten material flow chan...
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The invention provides a pin-shaped self-locking nozzle device comprising a substrate, a pin valve and a pin valve driving mechanism; the substrate is provided with a molten material runner and a molten material jet orifice; the pin valve can be movably arranged in the substrate relative to the substrate; the pin valve driving mechanism comprises an opening unit fixedly connected to the pin valveand an elastic reset unit used for closing the pin valve; the opening unit is provided with a touching and pressing element for touching and pressing an injection mould to push the pin valve open; and the touching and pressing element is arranged at the outside of the substrate. Compared with the prior art, the pin-shaped self-locking nozzle device provided by the invention is favorable for solving the problems of increment of injection pressure, complex structure, unstable incompression of a pinhead and the like in the prior art, and has the advantages of simple and compact structure, convenience and safety for operation and environment protection. In addition, the pin valve can be opened depending on the advance movement of an injection molding machine and can carry out self-lock to close a nozzle after the injection process is ended.
Description
technical field [0001] The invention relates to a nozzle device for injecting molten material of an injection molding machine. Background technique [0002] In the process of using an injection molding machine for product injection molding, when the injection machine completes an injection molding process, the problem of overflow often occurs. The flash will have a negative impact on the next injection molding process of the product. The flash of some plastic materials hardens due to excessive cooling, so it must be removed before the next product processing; some will flow out a lot of material . [0003] The Chinese Utility Model Patent No. ZL200320126753.4 discloses a mechanical rotary switch for the nozzle of an injection molding machine. Through the turbine in the middle, a rotary switch is installed in the center of the machine base and the nozzle casing. The head of the rotary switch is provided with a groove, and the front end is covered with a spacer sleeve. matc...
Claims
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IPC IPC(8): B29C45/20
Inventor 王建康刘向阳惠帅
Owner ZHUHAI COLLEGE OF JILIN UNIV