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Injection molding machine barrel

A material tube and material tube technology, applied in the field of plastic injection molding equipment, can solve the problems of slow temperature regulation, heat loss, low thermal efficiency, etc., and achieve the effects of fast temperature regulation, small energy loss, and high thermal efficiency.

Inactive Publication Date: 2011-12-07
胡海波
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Problems solved by technology

One of the disadvantages of this structure is that the thermal efficiency is low. The material pipe is heated from the outside to the inside, and the heat loss on the surface is very serious. Even if insulation measures are taken, the thermal efficiency of the general injection molding machine material pipe is only about 30%.
The second disadvantage is that the speed of temperature control is slow. Due to the large thickness of the material tube, there is a long time lag in the process from adjusting the current on the electric heating ring to actually affecting the temperature in the tube when adjusting the temperature. After that, it is necessary to stop and wait for a long time to ensure that the temperature setting in the tube meets the production requirements.

Method used

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  • Injection molding machine barrel
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Embodiment Construction

[0011] In order to make the above-mentioned technical scheme of the present invention and its advantages clearer and easier to understand, the preferred solution is enumerated below and described in detail as follows:

[0012] Refer to attached figure 1 :

[0013] The barrel of the injection molding machine according to the present invention includes a body 1, a feeding mechanism 2 is arranged on the body 1, a nozzle 3 is installed at the front end of the body 1, a heating coil 4 is wound on the outside of the body 1, and the heating coil 4 A high-frequency induction heater 5 is connected. The high-frequency induction heater 5 is a commercially available high-frequency induction heater, including a high-frequency oscillation generator and a power amplifier.

[0014] A plurality of heating coils 41 , 42 and 43 are wound on the barrel body 1 , and each heating coil is respectively connected to a different high-frequency induction heater. In this way, independent control of e...

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Abstract

The invention provides a material tube of an injection molding machine, which includes a body, on which a feeding mechanism is arranged, a nozzle is installed at the front end of the body, and a heating coil is wound outside the body, and the heating coil is connected to a high-frequency induction heater. The injection molding machine material tube of the invention has the advantages of high heating efficiency and fast temperature control speed.

Description

[0001] technical field [0002] The invention relates to a material tube of an injection molding machine, in particular to a material tube of an injection molding machine with a heating coil wound around the outside of the body, and belongs to the field of plastic injection molding equipment. Background technique [0003] Existing material tubes of injection molding machines are usually heated by electric heaters, and the electric heaters are set on the outside of the material tubes one by one to heat the plastic in the tubes through the heat transfer of the material tubes. One of the disadvantages of this structure is low thermal efficiency. The heating of the material tube is from the outside to the inside, and the heat loss on the surface is very serious. Even if insulation measures are taken, the thermal efficiency of the material tube of the general injection molding machine is only about 30%. The second disadvantage is that the speed of temperature control is slow. Due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/74B29C45/62
Inventor 梁轶聪胡海波
Owner 胡海波
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