Embedded planetary-screw pulsation plasticizing exhaust extruder and method

Abstract

The invention provides an embedded planetary-screw pulsation plasticizing exhaust extruder, which comprises a screw mechanism, a cylinder, a feed inlet, an air outlet, a discharge outlet and an actuating unit, wherein the screw mechanism comprises a main screw and a plurality of planetary screws, and the axis of the main screw is coincident with the axis of the cylinder; the screw arris of the main screw is provided with a plurality of holes which are matched with the planetary screws; the planetary screws are respectively inserted in the holes of the screw arris of the main screw, embedded into a screw slot and distributed around the main screw; the axes of the planetary screws are parallel to the axis of the main screw; the actuating unit comprises pulsation gears, planetary gears and apulsation-gear transmission mechanism; the planetary gears are fixed at the ends of the planetary screws and are engaged with the pulsation gears; and the pulsation gears are connected with the pulsation-gear transmission mechanism. The invention also provides an embedded planetary-screw pulsation plasticizing exhaust method implemented by the device. The embedded planetary screw pulsation plasticizing exhaust extruder and the embedded planetary-screw pulsation plasticizing exhaust method have the advantages of adjustable retention time, low energy consumption, thorough exhaust, good uniformity of phase structure control, and the like.

Description

technical field

[0001] The invention relates to a polymer material plasticizing exhaust extrusion processing technology, in particular to an embedded planetary screw pulsating plasticizing exhaust extrusion device and a method thereof. Background technique

[0002] In recent years, the field of polymer material processing has been moving towards the direction of energy saving, consumption reduction and green processing. High-speed machining, precision machining, material microscopic phase structure control and remote intelligence are the key development directions in the future. As a processing technology, from the raw material entering the equipment to the final product quality control, it has to go through several processes such as solid transportation, exhaust, melting, and melt transportation. At present, the widely used processing equipment mainly includes single-screw extruder, twin-screw extruder and so on. The material melt transportation process is mainly realized...

Examples

Embodiment 1

[0044] Figure 1 ~ Figure 3 Shows the specific structural schematic diagram of this embodiment, such as figure 1 As shown, the embedded planetary screw 3 pulsating plasticizing exhaust extrusion device includes a screw mechanism, a barrel 1, a feed port 6, an exhaust port 5, a discharge port 4 and a power mechanism, and the power mechanism is located at The end of the barrel 1 is connected with the screw mechanism; the screw mechanism is arranged inside the barrel 1 and placed horizontally, and the inside of the barrel 1 is a solid conveying section 12, a melting section 13, an exhaust section 14 and a mixing Extrusion section 15; described feed inlet 6 is arranged on the cylinder 1 top of solid delivery section 12, and exhaust port 5 is located on the cylinder 1 top of exhaust section 14, and feed inlet 6 and exhaust outlet 5 are all connected with The barrel 1 is connected; the discharge port 4 is located at the end of the barrel 1; figure 2 As shown, the screw mechanism ...

Embodiment 2

[0060] This embodiment has the same structure as Embodiment 1 except for the following features: the outer surface of the planetary screw 3 in the solid conveying section is provided with a multi-head intermittent thread structure; Figure 6 As shown, the planetary screw 3 in the exhaust section is provided with a helical blade 17 whose diameter is larger than the outer diameter of the planetary screw 3 .

[0061] Such as Figure 5 As shown, the pulsating gear 7 is a spur gear; the planetary gear 8 is a spur gear; the pulsating gear transmission mechanism 11 is a sprocket mechanism.

[0062] Such as Figure 7 As shown, the number of planetary screws 3 is 8, and each planetary screw 3 is inserted into each hole of the main screw flight and embedded in the screw groove, and each planetary screw 3 is evenly distributed around the main screw, and its axis is in line with the The axes of the main screws are parallel.

Embodiment 3

[0064] Present embodiment except following feature other structures are with embodiment 1: as Figure 8 As shown, the hole provided on the flight of the main screw 2 and matched with the planetary screw is a figure-eight hole 19, and the number of the figure-eight holes 19 on the flight of each circumference is eight, and each figure-eight hole 19 Both are connected with two planetary screws 18, 20, the two planetary screws are co-rotating twin-screws, and each figure-eight hole 19 is formed by two circular arcs, and the central axis of the two circular arcs is the center of the twin-screw. distance.

technical field

[0001] The invention relates to a polymer material plasticizing exhaust extrusion processing technology, in particular to an embedded planetary screw pulsating plasticizing exhaust extrusion device and a method thereof. Background technique

[0002] In recent years, the field of polymer material processing has been moving towards the direction of energy saving, consumption reduction and green processing. High-speed machining, precision machining, material microscopic phase structure control and remote intelligence are the key development directions in the future. As a processing technology, from the raw material entering the equipment to the final product quality control, it has to go through several processes such as solid transportation, exhaust, melting, and melt transportation. At present, the widely used processing equipment mainly includes single-screw extruder, twin-screw extruder and so on. The material melt transportation process is mainly realized...

Examples

Embodiment 1

[0044] Figure 1 ~ Figure 3 Shows the specific structural schematic diagram of this embodiment, such as figure 1 As shown, the embedded planetary screw 3 pulsating plasticizing exhaust extrusion device includes a screw mechanism, a barrel 1, a feed port 6, an exhaust port 5, a discharge port 4 and a power mechanism, and the power mechanism is located at The end of the barrel 1 is connected with the screw mechanism; the screw mechanism is arranged inside the barrel 1 and placed horizontally, and the inside of the barrel 1 is a solid conveying section 12, a melting section 13, an exhaust section 14 and a mixing Extrusion section 15; described feed inlet 6 is arranged on the cylinder 1 top of solid delivery section 12, and exhaust port 5 is located on the cylinder 1 top of exhaust section 14, and feed inlet 6 and exhaust outlet 5 are all connected with The barrel 1 is connected; the discharge port 4 is located at the end of the barrel 1; figure 2 As shown, the screw mechanism ...

Embodiment 2

[0060] This embodiment has the same structure as Embodiment 1 except for the following features: the outer surface of the planetary screw 3 in the solid conveying section is provided with a multi-head intermittent thread structure; Figure 6 As shown, the planetary screw 3 in the exhaust section is provided with a helical blade 17 whose diameter is larger than the outer diameter of the planetary screw 3 .

[0061] Such as Figure 5 As shown, the pulsating gear 7 is a spur gear; the planetary gear 8 is a spur gear; the pulsating gear transmission mechanism 11 is a sprocket mechanism.

[0062] Such as Figure 7 As shown, the number of planetary screws 3 is 8, and each planetary screw 3 is inserted into each hole of the main screw flight and embedded in the screw groove, and each planetary screw 3 is evenly distributed around the main screw, and its axis is in line with the The axes of the main screws are parallel.

Embodiment 3

[0064] Present embodiment except following feature other structures are with embodiment 1: as Figure 8 As shown, the hole provided on the flight of the main screw 2 and matched with the planetary screw is a figure-eight hole 19, and the number of the figure-eight holes 19 on the flight of each circumference is eight, and each figure-eight hole 19 Both are connected with two planetary screws 18, 20, the two planetary screws are co-rotating twin-screws, and each figure-eight hole 19 is formed by two circular arcs, and the central axis of the two circular arcs is the center of the twin-screw. distance.

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