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Kneading device and kneading method
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A kneading and screw technology, applied in the field of kneading devices
Active Publication Date: 2017-02-22
TOSHIBA MASCH CO LTD +1
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Abstract
Description
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Problems solved by technology
However, even with the use of compatibilizers, since the blended ingredients are insoluble with each other at the molecular level, there are bound to be limitations in improving the performance and functionality of the kneaded product produced by the extruder
Method used
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no. 1 approach
[0059] Below, refer to Figure 1 to Figure 11 The first embodiment will be described.
[0060] figure 1 The configuration of the continuous high-shear processing device (kneading device) 1 according to the first embodiment is schematically shown. The high-shear processing device 1 includes a first extruder (treater) 2 , a second extruder 3 , and a third extruder (defoamer) 4 . The first extruder 2, the second extruder 3, and the third extruder 4 are connected to each other in series.
[0061] The first extruder 2 is a processor for pre-kneading and melting materials such as two types of incompatible resins. Here, polycarbonate resin (PC) and polymethyl methacrylate resin (PMMA) were used as two kinds of resins. The aforementioned resin is supplied to the first extruder 2 in the state of, for example, pellets.
[0062] In this embodiment, in order to enhance the degree of kneading and melting of the resin, a co-rotating twin-screw kneader is used as the first extruder 2 . ...
no. 2 approach
[0149] Figure 12 A second embodiment is disclosed. In the second embodiment, matters related to the rotating shaft 38 are different from those in the first embodiment. The structure of the screw 21 other than that is basically the same as that of the first embodiment. Therefore, in the second embodiment, the same reference numerals are assigned to the same components as those in the first embodiment, and description thereof will be omitted.
[0150] Such as Figure 12 As shown, a refrigerant passage 71 is formed inside the rotating shaft 38 . The refrigerant passage 71 extends coaxially along the axis O1 of the rotary shaft 38 . One end of the refrigerant passage 71 is connected to an outlet pipe 73 via a rotary joint 72 at the joint portion 42 . The other end of the refrigerant passage 71 is closed liquid-tightly at the front end of the rotating shaft 38 .
[0151] A refrigerant introduction pipe 74 is coaxially inserted into the refrigerant passage 71 . One end of th...
no. 3 approach
[0155] Figure 13 to Figure 18 A third embodiment is disclosed. In the third embodiment, matters related to the screw main body 37 are different from those in the first embodiment. The structure of the screw 21 other than that is basically the same as that of the first embodiment. Therefore, in the third embodiment, the same reference numerals are assigned to the same components as those in the first embodiment, and description thereof will be omitted.
[0156] Such as Figure 13 and Figure 14 As shown, similar to the first embodiment, a plurality of cylindrical barrels 39 constituting the screw body 37 are fastened between the first collar 44 and the second collar 51 in the axial direction of the second shaft portion 41 , the end faces of the adjacent cylindrical bodies 39 are in close contact with each other without gaps.
[0157] At this time, all the cylindrical bodies 39 are coaxially coupled to the second shaft portion 41 , and the respective cylindrical bodies 39 ...
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Abstract
The present invention provides kneading technology that makes completely continuous production of a kneaded product of constant quality possible by continuously conveying an object to be processed in melt processing of a material, kneading processing in which a melted material is used as a raw material, and dischargeprocessing of a generated kneaded product. This kneading device comprises a processing device (2) that melts a material and an extruder (3) that discharges a kneaded product. The extruder is provided with a screw (21) that kneads and conveys a raw material. The screw comprises a screw main body that rotates around a linear axis. A conveyance section, a barrier wall section, and a passage are provided to a plurality of locations on the screw main body. The passage is provided to the interior of the screw main body in at least one of said locations and comprises an inlet and an outlet. The inlet and the outlet open on the outer circumferential surface of the screw main body. Raw material that has been subjected to an increase in pressure by the barrier wall section flows into the inlet. The passage is configured so that the raw material that flows in from the inlet flows toward the outlet. The outlet is positioned so as to be separated from the inlet in the axial direction.
Description
technical field [0001] The present invention relates to a kneading device and a kneading method thereof including an extruder which kneads the raw materials while applying shearing action and stretching action to the raw materials to be blended. Background technique [0002] For example, when kneading raw materials blended with various non-compatibility resins with an extruder whose screw speed is set at about 300 rpm, it is necessary to add one or both of the blended ingredients A compatibilizer with affinity or adhesion. However, even if a compatibilizer is used, there is necessarily a limit to improving the performance and functionality of the kneaded product produced by the extruder because the blending components do not dissolve each other at the molecular level. [0003] In order to solve the above-mentioned problems, a high-shear molding device has been developed, which can produce a material having a polymer with one polymer component as a matrix without adding any ...
Claims
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Application Information
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