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Online detection device for rheology of micro-injection molded polymer under ultrasonic energy field and online detection method

A detection device, micro-injection technology, applied in the direction of complex mathematical operations, etc., can solve the problem that it is difficult to accurately describe the viscosity characteristics of the melt

Active Publication Date: 2022-01-04
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to accurately describe the viscosity characteristics of the melt at the micro scale by the viscosity data measured at the macro scale

Method used

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  • Online detection device for rheology of micro-injection molded polymer under ultrasonic energy field and online detection method
  • Online detection device for rheology of micro-injection molded polymer under ultrasonic energy field and online detection method
  • Online detection device for rheology of micro-injection molded polymer under ultrasonic energy field and online detection method

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Embodiment Construction

[0073] from Figure 1 to Figure 5 It can be seen that the micro-injection molding polymer rheological on-line detection device of the present invention includes a frame 1 and an ultrasonic vibration unit 2, a test mold 3, a heating unit 4 and a dynamic loading set on the frame 1. Unit 5, the ultrasonic vibration unit 2 is arranged just above the test mold 3, and is used to be responsible for generating and providing an ultrasonic energy field with a certain range of frequency and amplitude; the heating unit 4 is installed at the bottom of the test mold 3 to provide the plasticizing temperature; Power The loading unit 5 is installed under the test mold 3 for controlling the opening or closing of the test mold 3 and the injection of the polymer.

[0074] from figure 1 and image 3 It can be seen that the rack 1 in the present invention includes a fixed frame and a movable frame mounted on the fixed frame that can move up and down. The fixed frame includes a top plate 11 , a bo...

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Abstract

The invention discloses an online detection device for rheology of a micro-injection molded polymer under an ultrasonic energy field and an online detection method. The device comprises a test mold, a heating unit and a power loading unit, the test mold comprises a core mold cover plate, a cavity thickness adjusting gasket, a core mold base plate and a material storage barrel which are sequentially arranged from top to bottom, a plasticizing cavity which is arranged in an up-down penetrating manner is formed in the core mold cover plate, the cavity thickness adjusting gasket, the core mold base plate and the material storage barrel, and a first core mold is clamped at the position, at one side of the plasticizing cavity, of the core mold cover plate; a viscosity measuring core mold is clamped at the position, located at the other side of the plasticizing cavity, in the the core mold base plate, and a runner on the first core mold is one of an injected runner or a to-be-injected runner ; the heating unit comprises a plasticizing heating resistor and a mold heating rod; and the power loading unit comprises an injection unit and a mold opening and closing unit. According to the device, on-line detection of the flow viscosity of polymer melt in four different modes can be realized; and on-line detection of the viscosity of the polymer melt under different cavity thicknesses can be completed.

Description

technical field [0001] The invention relates to the technical field of micro-scale polymer viscosity detection, in particular to an on-line detection device and method for micro-injection molding polymer rheology under an ultrasonic energy field. Background technique [0002] In recent years, the miniaturization and popularization of some MEMS with special functions and personal wearable electronic products have brought new challenges to the high-quality mass production of micro injection molded parts. From the perspective of polymer processing technology, the advantages of thermoplastic polymer microinjection molding are reflected in the short production cycle, large scale, good dimensional accuracy, and less restrictions on complex shapes and details. Compared with other molding techniques, micro-injection molding is more suitable for low-cost mass production, especially when the molding precision reaches the micro and nano level. Due to process and material property limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76B29C45/17B29C45/26B29C45/73B29C45/53B29C45/66G06F17/11
CPCB29C45/76B29C45/1701B29C45/26B29C45/73B29C45/17B29C45/531B29C45/66G06F17/11B29C2945/7605B29C2045/0094
Inventor 吴旺青赵百顺曾可蒋炳炎
Owner CENT SOUTH UNIV
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