Stirring assembly based on charging barrel of melt spinning machine

Abstract

The utility model relates to the field of preparation of carbon fibers from asphalt raw materials, in particular to a stirring assembly based on a charging barrel of a melt spinning machine, and the stirring assembly is suitable for being used when the carbon fibers are prepared from the asphalt raw materials. The stirring assembly comprises a charging barrel cover, a stirring shaft, stirring supporting rods, stirring rods, a motor, a connecting line and a control box, and the specific structure is as follows: the charging barrel cover is arranged at the upper end of a spinning machine charging barrel, and the motor is arranged in the center of the top end of the charging barrel cover and connected with the control box through the connecting line; the upper end of a vertical stirring shaft is installed at the output end of the motor, the stirring shaft penetrates through a center hole of the charging barrel cover and extends to the bottom of the spinning machine charging barrel, the stirring shaft is connected with the center hole of the charging barrel cover through a mechanical seal, and a stirring supporting rod with a stirring rod is installed at the lower end of the stirring shaft. According to the utility model, raw materials and other doping materials can be mixed more uniformly, and volatile small molecules or bubbles in the raw materials can escape favorably, so that the stability of fiber preparation and the performance of carbon fibers are improved.

Description

Technical Field

[0001] The utility model relates to the field of preparing carbon fiber from asphalt raw materials, in particular to a stirring component based on a melt spinning machine barrel, which is suitable for the stirring component used when preparing carbon fiber from asphalt raw materials. Background Art

[0002] Carbon fiber has excellent properties such as high specific strength, high specific modulus, conductivity, stable chemical properties, small thermal expansion coefficient, and good compatibility with other materials, making carbon fiber one of the important main materials of this century.

[0003] Melt spinning is the process of forming asphalt into fibers, and it is also the most important process that affects the performance of the final asphalt carbon fiber. The quality of asphalt molding directly affects the uniformity, orientation, and microstructure of the asphalt fiber. During the spinning process, the temperature is between 300 and 380°C, and the asphalt molecules undergo cracking reactions to generate small molecular compounds. If they are not discharged in time, the stability of spinning will be affected. In addition, according to the performance requirements of the final carbon fiber, the asphalt raw materials need to be doped with other elements. The uniformity of the raw material mixing is the basic condition to ensure the stable performance of the carbon fiber. Utility Model Content

[0004] The utility model aims to provide a stirring component based on a melt spinning machine barrel to achieve the mixing uniformity of raw materials and the escape of gas.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stirring assembly based on a melt spinning machine barrel, the stirring assembly includes a barrel cover, a stirring shaft, a stirring support rod, a stirring rod, a motor, a connecting line, and a control box. The specific structure is as follows:

[0007] The barrel cover is arranged at the upper end of the spinning machine barrel, and a motor is provided at the center position of the top of the barrel cover, and the motor is connected to the control box through a connecting line; the upper end of the vertical stirring shaft is installed at the output end of the motor, the stirring shaft passes through the center hole of the barrel cover and extends to the bottom of the spinning machine barrel, the stirring shaft and the center hole of the barrel cover are connected by a mechanical seal, and a stirring support rod with a stirring rod is installed at the lower end of the stirring shaft.

[0008] The stirring assembly based on the melt spinning machine barrel has a barrel cover which is tightly connected to the spinning machine barrel through a flange, so that the barrel cover is tightly combined with the spinning machine barrel.

[0009] The stirring assembly based on the melt spinning machine barrel is provided with an air inlet and an air outlet on both sides of the central hole of the barrel cover, an air inlet pipe is installed at the air inlet, and an air outlet pipe is installed at the air outlet.

[0010] The stirring assembly based on the barrel of the melt spinning machine is provided with a thermocouple jack at the top of the barrel cover near the motor, and the thermocouple extends into the barrel of the spinning machine through the thermocouple jack.

[0011] The stirring assembly based on the melt spinning machine barrel comprises a hollow stirring shaft and a stirring support rod which form a telescopic sleeve structure. The upper end of the vertical stirring support rod is inserted into the stirring shaft, and a stirring rod is arranged at the lower end of the stirring support rod.

[0012] The stirring assembly based on the melt spinning machine barrel has positioning screws corresponding to the stirring support rods on both sides of the stirring shaft. The stirring support rods are telescoped up and down in the stirring shaft and are fixed by the positioning screws.

[0013] The stirring assembly based on the barrel of the melt spinning machine has a stirring rod that is horizontally arranged in a straight line shape, a double-blade paddle shape, a cross shape or a circle shape.

[0014] The stirring assembly based on the barrel of the melt spinning machine is provided with a power switch and an adjustable knob for controlling the rotation speed on the control box.

[0015] The advantages and beneficial effects of the utility model are as follows:

[0016] 1. The stirring assembly of the utility model is conducive to the discharge of gas molecules of the molten raw materials, and can improve the purity of the raw materials.

[0017] 2. The stirring assembly of the utility model can achieve uniform mixing of the asphalt raw material and the doping material, thereby ensuring the uniformity of the raw materials.

[0018] 3. The stirring assembly of the utility model can adjust the length of the stirring rod through the design of the telescopic sleeve and the positioning screw, and can be disassembled for easy subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure numerals: (1) barrel cover, (2) air inlet pipe, (3) air outlet pipe, (4) thermocouple jack, (5) thermocouple, (6) stirring shaft, (7) positioning screw, (8) stirring support rod, (9) stirring rod, (10) motor, (11) connecting wire, (12) control box, (13) power switch, (14) adjustable knob. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] like Figure 1As shown, the utility model proposes a stirring assembly based on a melt spinning machine barrel, which mainly includes a barrel cover (1), an air inlet pipe (2), an air outlet pipe (3), a thermocouple jack (4), a thermocouple (5), a stirring shaft (6), a positioning screw (7), a stirring support rod (8), a stirring rod (9), a motor (10), a connecting line (11), a control box (12), a power switch (13), and an adjustable knob (14). The specific structure is as follows:

[0023] A barrel cover (1) is arranged at the upper end of a barrel of a spinning machine. A motor (10) is arranged at the center position of the top end of the barrel cover (1). The motor (10) is connected to a control box (12) via a connecting line (11). The stirring rate can be controlled by the control box (11). The upper end of a vertical stirring shaft (6) is installed at the output end of the motor (10). The stirring shaft (6) passes through the center hole of the barrel cover (1) and extends to the bottom of the barrel of the spinning machine. The stirring shaft (6) and the center hole of the barrel cover (1) are connected via a mechanical seal. A stirring support rod (8) with a stirring rod (9) is installed at the lower end of the stirring shaft (6).

[0024] The barrel cover (1) is tightly connected to the barrel of the spinning machine through a flange, so that the barrel cover (1) and the barrel of the spinning machine are tightly combined and airtight. An air inlet and an air outlet are respectively arranged on both sides of the central hole of the barrel cover (1), an air inlet pipe (2) is installed at the air inlet, and an air outlet pipe (3) is installed at the air outlet. During the spinning process, inert gas is introduced through the air inlet pipe (2) to protect the raw material and prevent the raw material from being oxidized, and small impurity molecules are discharged through the air outlet pipe (3).

[0025] A thermocouple jack (4) is provided on the top of the barrel cover (1) near the motor (10), and a thermocouple (5) extends into the barrel of the spinning machine through the thermocouple jack (4) to monitor the temperature in the barrel of the spinning machine in real time.

[0026] The stirring shaft (6) and stirring support rod (8) of the hollow structure form a telescopic sleeve structure, the upper end of the vertical stirring support rod (8) is inserted into the stirring shaft (6), and the lower end of the stirring support rod (8) is provided with a stirring rod (9), and the stirring rod (9) is horizontally arranged in a straight line shape, a double-leaf paddle shape, a cross shape or a circle shape. Positioning screws (7) corresponding to the stirring support rod (8) are provided on both sides of the stirring shaft (6), and the stirring support rod (8) is telescopic up and down in the stirring shaft (6) and is fixed by the positioning screw (7). The length of the stirring rod (8) can be controlled by adjusting the tightness of the positioning screw (7), and the stirring depth is adjusted according to the amount of raw materials added by cooperating with the stirring support rod (8) through the stirring shaft (6).

[0027] The control box (12) is provided with a power switch (13) and an adjustable knob (14) for controlling the rotation speed. When the control box (12) is connected to the power supply and the power switch (13) is turned on, the stirring speed can be adjusted by the adjustable knob (14).

[0028] When in use, after adding the raw materials into the spinning machine barrel, loosen the positioning screw (7), adjust the extended length of the stirring support rod (8) and then fix it on the stirring shaft (6), cover the barrel cover (1) with the stirring assembly on the spinning machine barrel, seal the spinning machine barrel through the flange, and introduce protective gas through the air inlet pipe (2). After the raw materials in the spinning machine barrel are heated to a specified temperature, turn on the power switch (13) of the control box (12), and adjust the stirring speed through the adjustable knob (14), so as to achieve the uniformity of the raw materials and the discharge of gas molecules.

[0029] The implementation results show that the utility model can make the raw materials and other doping materials mix more evenly, and is also beneficial to the escape of volatile small molecules or bubbles in the raw materials, so that the gas entrained in the asphalt raw materials and the gas cracked under high temperature conditions can be discharged, thereby improving the stability of fiber preparation and the performance of carbon fiber, and is suitable for spinning on a melt spinning machine.

Claims

1. A stirring assembly based on a melt spinning machine barrel, characterized in that: The stirring assembly comprises a barrel cover (1), a stirring shaft (6), a stirring support rod (8), a stirring rod (9), a motor (10), a connecting line (11), and a control box (12), and the specific structure is as follows: A barrel cover (1) is arranged at the upper end of a barrel of a spinning machine. A motor (10) is arranged at the center position of the top of the barrel cover (1). The motor (10) is connected to a control box (12) via a connecting line (11). The upper end of a vertical stirring shaft (6) is installed at the output end of the motor (10). The stirring shaft (6) passes through the center hole of the barrel cover (1) and extends to the bottom of the barrel of the spinning machine. The stirring shaft (6) and the center hole of the barrel cover (1) are connected via a mechanical seal. A stirring support rod (8) with a stirring rod (9) is installed at the lower end of the stirring shaft (6).

2. The stirring assembly based on the melt spinning machine barrel according to claim 1, characterized in that: The barrel cover (1) is tightly connected to the barrel of the spinning machine via a flange, so that the barrel cover (1) is tightly combined with the barrel of the spinning machine.

3. The stirring assembly based on the melt spinning machine barrel according to claim 1, characterized in that: An air inlet and an air outlet are respectively arranged on both sides of the central hole of the barrel cover (1), an air inlet pipe (2) is installed at the air inlet, and an air outlet pipe (3) is installed at the air outlet.

4. The stirring assembly based on the melt spinning machine barrel according to claim 1, characterized in that: A thermocouple jack (4) is provided on the top of the barrel cover (1) near the motor (10), and a thermocouple (5) extends into the barrel of the spinning machine through the thermocouple jack (4).

5. The stirring assembly based on the melt spinning machine barrel according to claim 1, characterized in that: The stirring shaft (6) and stirring support rod (8) of the hollow structure form a telescopic sleeve structure. The upper end of the vertical stirring support rod (8) is inserted into the stirring shaft (6), and the lower end of the stirring support rod (8) is provided with a stirring rod (9).

6. The stirring assembly based on the melt spinning machine barrel according to claim 5, characterized in that: Positioning screws (7) corresponding to the stirring support rods (8) are arranged on both sides of the stirring shaft (6); the stirring support rods (8) are telescoped up and down in the stirring shaft (6) and are fixed by the positioning screws (7).

7. The stirring assembly based on the melt spinning machine barrel according to claim 5, characterized in that: The stirring rod (9) is horizontally arranged in a straight line shape, a double-blade paddle shape, a cross shape or a circle shape.

8. The stirring assembly based on the melt spinning machine barrel according to claim 1, characterized in that: The control box (12) is provided with a power switch (13) and an adjustable knob (14) for controlling the rotation speed.

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