Movable melt-spun asphalt fiber monofilament diameter measuring device

Abstract

The utility model relates to the field of melt-spun asphalt fibers, in particular to a movable melt-spun asphalt fiber monofilament diameter measuring device. The device comprises a spinning device, a yarn collecting device, a portable laser diameter measuring instrument, a movable lifting platform and a camera with a triangular support, and is specifically structurally characterized in that the movable lifting platform is of a combined structure with a platform arranged on a lifting mechanism, and the portable laser diameter measuring instrument is placed on the platform of the movable lifting platform; guide wheels are oppositely arranged on one side of the portable laser diameter measuring instrument up and down; the spinning device and the filament collecting device are oppositely arranged above and below one side of the platform up and down; the camera is installed on the triangular support, the camera corresponds to the digital display screen of the portable laser diameter measuring instrument by moving the triangular support, and numerical values on the digital display screen are recorded through the camera with the triangular support. According to the utility model, the diameter of the target precursor can be regulated and controlled by adjusting spinning process parameters in time, and the defect of measuring the diameter of the continuous precursor in the prior art is overcome.

Description

Technical Field

[0001] The utility model relates to the field of melt-spun asphalt fibers, in particular to a movable melt-spun asphalt fiber monofilament diameter measuring device. Background Art

[0002] The diameter information of carbon fiber prepared from mesophase asphalt can directly reflect the stability of the process conditions and the quality of the precursor during the fiber preparation process. Therefore, it is of practical significance to obtain the diameter data information of the asphalt precursor in a timely and continuous manner during the melt-spinning of asphalt fibers to guide research and development and improve the production process. The currently commonly used method for measuring the fiber diameter is an indirect method. After the asphalt precursor is prepared, a section of it is taken to prepare a sample and its diameter is measured under an optical microscope or an electron microscope. This method can only measure the diameter of a section of the precursor and cannot reflect the change in diameter during the entire spinning process. In addition, the strength of the precursor is very low, which also increases the difficulty in the sample preparation process. Therefore, the design of a movable melt-spinning asphalt fiber single filament diameter measuring device is of great significance. Utility Model Content

[0003] The utility model aims to provide a movable melt-spun asphalt fiber monofilament diameter measuring device to solve the problems of the conventional common measuring method that the change of the original fiber diameter cannot be continuously detected and the sample preparation is difficult, thereby improving the working efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A movable melt-spun asphalt fiber monofilament diameter measuring device, the device includes a spinning device, a wire collecting device, a portable laser diameter measuring instrument, a movable lifting platform and a camera with a tripod bracket, the specific structure of which is as follows:

[0006] The movable lifting platform is a combined structure with a platform on the lifting mechanism. The portable laser diameter gauge is placed on the platform of the movable lifting platform. Guide wheels are relatively arranged on one side of the portable laser diameter gauge. The spinning device and the wire collecting device are relatively arranged above and below one side of the platform. The camera is installed on the tripod bracket. By moving the tripod bracket, the camera is made to correspond to the digital display screen of the portable laser diameter gauge, and the values ​​on the digital display screen are recorded by the camera with the tripod bracket.

[0007] The movable melt-spun asphalt fiber single filament diameter measuring device moves the portable laser diameter gauge to the position of the raw yarn above the receiving roller of the receiving device after the spinning device starts spinning. The raw yarn is stretched through the two guide wheels of the portable laser diameter gauge and then wound around the receiving roller of the receiving device. The portable laser diameter gauge displays the measured raw yarn diameter data in real time through the digital display screen thereon.

[0008] In the movable melt-spun asphalt fiber monofilament diameter measuring device, the portable laser diameter gauge is placed sideways, two guide wheels are located in the infrared laser scanning area of ​​the portable laser diameter gauge, the raw yarn is close to the two guide wheels of the portable laser diameter gauge, and the diameter data is measured by infrared laser sensing and displayed in real time on the digital display screen.

[0009] The movable melt-spun asphalt fiber monofilament diameter measuring device has a lifting mechanism of a movable lifting platform provided with a screw rod, and the movable lifting platform can be adjusted in height within a range of 5 to 35 cm by the screw rod.

[0010] The movable melt-spun asphalt fiber monofilament diameter measuring device has a movable lifting platform whose size matches that of a portable laser diameter measuring instrument.

[0011] The movable melt-spun asphalt fiber monofilament diameter measuring device adjusts the camera height by means of a tripod bracket that is telescopically moved up and down.

[0012] The advantages and beneficial effects of the utility model are as follows:

[0013] The utility model can observe the changes in the diameter of the melt-spun fiber monofilament in real time, and can quickly adjust the spinning process according to the changes in the diameter. Such a device for real-time diameter measurement is easy to operate, small in size, flexible, and low in cost. It can timely regulate the target raw yarn diameter by adjusting the spinning process parameters, thus making up for the shortcomings of the prior art in measuring the continuous raw yarn diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure numerals: (1) spinning device; (2) raw yarn; (3) portable laser diameter gauge; (31) guide wheel; (32) digital display screen; (4) wire collection device; (41) wire collection roller; (5) movable lifting platform; (51) platform; (52) lifting mechanism; (53) screw; (6) tripod bracket; (7) camera.

[0016] Figure 2 This is a comparison diagram of the diameter measurement of the utility model and the diameter measurement under a scanning electron microscope. DETAILED DESCRIPTION

[0017] 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.

[0018] like Figure 1As shown, the utility model provides a movable melt-spun pitch fiber monofilament diameter measuring device, which mainly includes a spinning device (1), a wire collecting device (4), a portable laser diameter measuring instrument (3), a movable lifting platform (5) and a camera (7) with a tripod bracket (6). The specific structure is as follows:

[0019] The movable lifting platform (5) is a combined structure in which a platform (51) is provided on a lifting mechanism (52). A portable laser diameter gauge (3) is placed on the platform (51) of the movable lifting platform (5). A guide wheel (31) is arranged on one side of the portable laser diameter gauge (3) in a relative manner up and down. A spinning device (1) and a wire collecting device (4) are arranged on the upper and lower sides of one side of the platform (51) in a relative manner up and down. After the spinning device (1) starts spinning, the portable laser diameter gauge (3) is moved to the position of the original wire (2) above the wire collecting roller (41) of the wire collecting device (4). The yarn (2) is sequentially output to the yarn collecting device (4) through the spinning device (1) and the guide wheel (31), and is wound on the yarn collecting roller (41) of the yarn collecting device (4) by drawing the yarn (2). The portable laser diameter measuring instrument (3) displays the measured diameter data of the yarn (2) in real time through the digital display screen (32) thereon. The camera (7) is installed on the tripod bracket (6). By moving the tripod bracket (6), the camera (7) and the digital display screen (32) of the portable laser diameter measuring instrument (3) are made to correspond, and the displayed value is recorded by the camera (7) with the tripod bracket (6).

[0020] The spinning device (1) is equipped with a barrel with a spinneret and a cover. The raw material is loaded into the barrel and heated under the protection of an inert gas. The molten raw material is extruded by a certain pressure, and the extruded raw fibers are wound on a collection device (4) by drawing.

[0021] The wire collecting device (4) fixes the wire collecting roller (41) via a hand expansion shaft, and the hand expansion shaft is driven by a stepping motor to drive the wire collecting roller (41) to rotate. The rotation speed is controlled by a frequency converter, and the rotation speed can be changed by adjusting the frequency.

[0022] During the process of collecting the wire, the portable laser diameter gauge (3) is placed sideways so that the raw wire gradually approaches the two guide wheels (31) of the portable laser diameter gauge (3). The two guide wheels (31) are located in the infrared laser scanning area of ​​the portable laser diameter gauge (3). During the process of collecting the raw wire (2), after the raw wire (2) passes through the guide wheels (31), the diameter data is measured by infrared laser induction and displayed in real time on the digital display screen. The portable laser diameter gauge (3) is equipped with a lithium battery, is light in weight, and is easy to carry.

[0023] The lifting mechanism (52) of the movable lifting platform (5) is provided with a screw rod (53), and the height of the movable lifting platform (5) can be adjusted by the screw rod (53), and the height can be adjusted within the range of 5 to 35 cm. In addition, the platform (51) used matches the portable laser diameter measuring instrument (3), which is slightly smaller in size, lighter, easier to move, and easier to operate. The portable laser diameter measuring instrument (3) is placed sideways on the platform (51), adjusted to a suitable position, and the diameter of the original wire (2) is measured.

[0024] The tripod bracket (6) can be extended and retracted up and down to adjust the height. During the spinning process, after adjusting the appropriate position, the camera (7) starts recording and records the numbers displayed by the portable laser diameter meter (3). After the spinning is completed, the data is imported into the computer and plotted into a curve showing the change of diameter over time.

[0025] like Figure 1 As shown, the working process of the utility model is as follows:

[0026] When the spinning device (1) starts spinning, the raw yarn (2) starts to emerge from the yarn outlet of the spinning device (1), and the raw yarn (2) is wound on the wire collection roller (41) of the wire collection device (4) through drawing. After it is stabilized, the portable laser diameter gauge (3) is placed on the platform (51) of the movable lifting platform (5), and it is slowly moved to the raw yarn (2), so that the raw yarn (2) passes through the two guide wheels (31) on the portable laser diameter gauge (3), and the data is displayed in real time on the digital display screen (32) of the portable laser diameter gauge (3).

[0027] When the diameter is measured in real time by the caliper, a camera (7) with a tripod (6) is used to record the data on the digital display screen (32). After the experiment is completed, the recorded video is transferred to a computer, the data in the video is converted into data, and the data is plotted into a curve, i.e., a curve showing the change of diameter over time.

[0028] like Figure 2 As shown in the figure, the diameter of 2000m long raw silk is measured by two methods. The average diameter measured by the device of the utility model is 52.1µm, and the average diameter measured by the scanning electron microscope is 51.6µm. Therefore, the diameter measurement by the measuring device of the utility model is accurate, convenient and fast.

Claims

1. A movable melt-spun pitch fiber monofilament diameter measuring device, characterized in that: The device comprises a spinning device (1), a wire collecting device (4), a portable laser diameter measuring instrument (3), a movable lifting platform (5) and a camera (7) with a tripod bracket (6), and the specific structure is as follows: The movable lifting platform (5) is a combined structure in which a platform (51) is provided on a lifting mechanism (52); a portable laser diameter gauge (3) is placed on the platform (51) of the movable lifting platform (5); guide wheels (31) are arranged on one side of the portable laser diameter gauge (3) in a manner that they are relatively arranged in the upper and lower parts; a spinning device (1) and a collecting device (4) are arranged on the upper and lower parts of one side of the platform (51) in a manner that they are relatively arranged in the upper and lower parts; a camera (7) is installed on a tripod bracket (6); by moving the tripod bracket (6), the camera (7) is made to correspond to a digital display screen (32) of the portable laser diameter gauge (3); and the value on the digital display screen (32) is recorded by the camera (7) with the tripod bracket (6).

2. The movable melt-spun pitch fiber monofilament diameter measuring device according to claim 1 is characterized in that: After the spinning device (1) starts spinning, the portable laser diameter gauge (3) is moved to the position of the original silk (2) above the wire collection roller (41) of the wire collection device (4), and the original silk (2) is drawn through two guide wheels (31) of the portable laser diameter gauge (3) and then wound on the wire collection roller (41) of the wire collection device (4). The portable laser diameter gauge (3) displays the measured diameter data of the original silk (2) in real time through the digital display screen (32) thereon.

3. The movable melt-spun pitch fiber monofilament diameter measuring device according to claim 1 is characterized in that: The portable laser diameter gauge (3) is placed sideways, and the two guide wheels (31) are located in the infrared laser scanning area of ​​the portable laser diameter gauge (3). The raw wire is close to the two guide wheels (31) of the portable laser diameter gauge (3), and the diameter data is measured by infrared laser sensing and displayed in real time on the digital display screen.

4. The movable melt-spun pitch fiber monofilament diameter measuring device according to claim 1 is characterized in that: A screw rod (53) is provided on the lifting mechanism (52) of the movable lifting platform (5), and the movable lifting platform (5) can be adjusted in height within a range of 5 to 35 cm through the screw rod (53).

5. The movable melt-spun pitch fiber monofilament diameter measuring device according to claim 1 is characterized in that: The platform (51) of the movable lifting platform (5) matches the size of the portable laser diameter measuring instrument (3).

6. The movable melt-spun pitch fiber monofilament diameter measuring device according to claim 1 is characterized in that: The height of the camera (7) is adjusted by a tripod bracket (6) that can be extended up and down.

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