Cotton moisture regain detection device and detection method

Abstract

The invention relates to the technical field of aircraft parts, and provides a cotton moisture regain detection device and method, the device comprises a detection device and a wind shield, the inner side of the detection device is provided with a first channel communicated with a sampling inspection port of a cotton flow channel, and the outer side is provided with a second channel communicated with a cotton return port located at the lower side of the sampling inspection port of the cotton flow channel; one end of a cotton taking comb of the detection device is rotatably arranged at the position, close to the first channel, of the detection device; a telescopic device is arranged on the side face of the first channel, the lower end of the telescopic device is fixedly connected with a wind shield, and a detection device is electrically connected with the telescopic device to control lifting of the wind shield; the transverse plate is connected with the telescopic device, the upper baffle shields the first channel, the lower baffle shields the second channel, and the transverse plate is connected with the lower end of the upper baffle and the upper end of the lower baffle. The automatic detection device has the beneficial effects that the automatic detection process integrating quantitative cotton collection, cotton pressing, moisture regain detection and cotton sample recovery is realized, the labor intensity is greatly reduced, and the detection precision and the detection efficiency of online detection are improved.

Description

Technical Field

[0001] The invention relates to the field of textiles, and in particular to a cotton moisture regain detection device and a detection method. Background Art

[0002] Cotton is a strategic material related to the national economy and people's livelihood, and is the main raw material of the textile industry. The moisture regain of cotton is an important factor affecting the quality of cotton processing, and ultimately affects the quality of woven products. The moisture regain of cotton affects the softness, strength and uniformity of the fiber. The moisture regain of cotton is very critical in the cotton ginning process. If the moisture regain of cotton is too high, it is not only difficult to clean, affecting the smooth entry of cotton into the cotton ginning working chamber, but also may form lumps to block and damage the cotton gin or stop the cotton ginning process completely. If the moisture regain of cotton is too low, the cotton will adhere to the metal surface, generate static electricity in the fiber, and cause machine blockage and shutdown. Therefore, it is urgent to develop an online detection device for cotton moisture regain, which can improve the stability of cotton pressure and compaction state during cotton moisture regain detection, thereby improving the accuracy and stability of cotton moisture regain detection, and meeting the needs of detecting cotton moisture regain in different processing links. At the same time, each processing link of cotton plays a different role in the entire processing technology. Combined with the physical properties of cotton fibers, the optimal processing parameters of each processing link are not the same. Therefore, the online detection system for lint cotton in the processing link can detect the quality index of lint cotton regain in the processing link in real time, which is of great significance to improving the process parameters of each processing link of cotton.

[0003] At present, there are three main methods for online detection of cotton moisture regain: 1. Gear type: The motor drives the driving wheel, the driving wheel drives the driven wheel, and the driven wheel drives the rectangular extrusion block to squeeze the cotton; 2. Electrode type: The cotton is compacted on the detection electrode by the weight of the cotton in the cotton flow channel or the traction of the feeding part; 3. Pin type: The pin type does not have a special sampling mechanism, and the cotton needs to be compacted manually or with the help of a special mechanism. Most cotton moisture regain online detection devices are directly installed in the cotton flow channel. The negative pressure in the cotton flow channel is extremely large, and it is very easy for the device to loosen, and even the device will fall and be transmitted with the cotton in the flow channel, causing serious processing accidents; at the same time, the device installed in the flow channel will indirectly affect the flow area and speed of the cotton in the flow channel; manual detection will consume a lot of manpower and processing time, and manual operation has a high risk factor, which is very likely to cause personal injury. Summary of the invention

[0004] Aiming at the shortcomings of the prior art, the present invention solves the problem that the cotton moisture regain online detection device affects the normal operation of cotton in the flow channel and the manual detection efficiency is low. The present invention provides a cotton moisture regain online detection device arranged outside the cotton flow channel, which realizes high-quality detection and efficient operation of cotton and avoids the influence on the negative pressure environment in the cotton flow channel. A cotton moisture regain detection device comprises a detection device and a windshield, wherein a first channel is arranged inside the detection device to connect to a sampling port of a cotton flow channel, and a second channel is arranged outside the detection device to connect to a cotton return port located below the sampling port of the cotton flow channel; One end of the cotton picking comb of the detection device is rotatably arranged at a position of the detection device close to the first channel; A telescopic device is provided on the side of the first channel, the lower end of the telescopic device is fixedly connected to the windshield, and the detection device is electrically connected to the telescopic device to control the lifting and lowering of the windshield; The windshield comprises a horizontal plate connected to the telescopic device, an upper baffle plate for shielding the first channel, and a lower baffle plate for shielding the second channel, wherein the horizontal plate connects the lower end of the upper baffle plate and the upper end of the lower baffle plate; When the wind shield plate moves up to the top end, the first channel is closed and the second channel is opened. When the wind shield plate moves down to the bottom end, the first channel is opened and the second channel is closed.

[0005] As a preferred solution, the second channel is a rectangular channel, the height of the second channel is the same as the maximum moving distance of the wind shield, the inner channel width of the second channel is the same as the width of the lower baffle, and a through hole is provided at the top of one end of the second channel connected to the cotton return port to enable the lower baffle to move downward into the second channel; When the wind shield moves down to the bottom, the lower baffle blocks the second channel. When the wind shield moves up to the top, the lower baffle no longer blocks the second channel but blocks the through hole to ensure the air tightness of the second channel.

[0006] As a preferred solution, the upper end of the lower baffle is rotatably arranged in the second channel, the height of the lower baffle is greater than the height of the second channel to limit the lower baffle from rotating toward the cotton flow channel, the horizontal plate is provided with a connecting rope connecting the side of the lower baffle close to the detection device, and a through hole for the connecting rope to pass through is provided at the upper end of the second channel.

[0007] Furthermore, the telescopic device is a cylinder connecting rod, which is fixedly arranged on both sides of the first channel.

[0008] Furthermore, the detection device includes a PLC control center, an electrode plate I, an electrode plate II and a driving device, wherein the electrode plate I is arranged at the top of the detection device, the driving device is arranged at the bottom of the detection device, and the electrode plate II is fixedly arranged at the top of the driving device; The PLC control center controls the cotton comb to place the cotton sample between electrode plate I and electrode plate II. The PLC control center controls the driving device to drive electrode plate II to move upward to squeeze the cotton sample. The cotton regain is detected by detecting the resistance value of the cotton sample and the detection data is sent back to the PLC control center.

[0009] Furthermore, an arc-shaped fixing plate is arranged at one end of the first channel close to the cotton flow channel to reinforce the connection with the cotton flow channel, and a connecting plate fixing connection detection device is arranged on the side of the arc-shaped fixing plate to enhance the integrity.

[0010] A detection method using the cotton moisture regain detection device is also provided, comprising the following steps: S1. The detection device controls the windshield to move downward, opens the first channel and closes the second channel, and the cotton picking comb rotates into the cotton flow channel to pick cotton; S2. The cotton comb rotates back and the cotton sample is placed in the detection device to detect the moisture regain of the cotton sample; S3. The detection device controls the windshield plate to move upward, closes the first channel and opens the second channel, and relies on the negative pressure in the cotton flow channel to suck the tested cotton sample out of the second channel.

[0011] The beneficial effects of the present invention are: The present invention provides an online detection system for the moisture regain and impurity content of lint cotton applied in the processing link. According to the material characteristics of lint cotton, combined with PLC control technology and modern mechanical design means, an automated detection process integrating quantitative collection of cotton, cotton pressing, moisture regain detection and cotton sample recovery is completed, which greatly reduces the labor intensity and improves the detection accuracy and efficiency of online detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein Figure 1 A schematic diagram of the structure of the present invention.

[0013] Figure 2 Schematic diagram of the internal structure of Example 1 of the present invention.

[0014] Figure 3 A schematic diagram of the internal structure of Example 2 of the present invention.

[0015] Figure 4 A schematic diagram of the internal structure of the detection device of the present invention.

[0016] The reference numerals in the accompanying drawings are: 1. Detection device; 11. Electrode plate I; 12. Electrode plate II; 13. Driving device; 2. Cotton taking comb; 3. First channel; 31. Arc-shaped fixing plate; 32. Connecting plate; 4. Second channel; 5. Cotton flow channel; 6. Telescopic device; 7. Wind shield; 71. Horizontal plate; 72. Upper baffle; 73. Lower baffle; 74. Connecting rope. DETAILED DESCRIPTION

[0017] To illustrate the features of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment 1: See also Figure 1 , Figure 2 and Figure 4 The embodiment of the present invention provides a cotton regain detection device, including a detection device 1 and a windshield 7. The detection device 1 includes a cotton picking comb 2, a PLC control center, an electrode plate I11, an electrode plate II12 and a driving device 13. One end of the cotton picking comb 2 of the detection device 1 is rotatably arranged at a position of the detection device 1 close to the first channel 3, the electrode plate I11 is arranged at the top end inside the detection device 1, the driving device 13 is arranged at the bottom end inside the detection device 1, and the electrode plate II12 is fixedly arranged at the top of the driving device 13; the PLC control center controls the cotton picking comb 2 to put the cotton sample between the electrode plate I11 and the electrode plate II12, and the PLC control center controls the driving device 13 to drive the electrode plate II12 to move upward to squeeze the cotton sample, and detects the cotton regain by detecting the resistance value of the cotton sample and transmits the detection data back to the PLC control center.

[0019] A first channel 3 is provided inside the detection device 1 to connect to the sampling port of the cotton flow channel 5, and a second channel 4 is provided outside the detection device 1 to connect to the cotton return port of the cotton flow channel 5 located below the sampling port. A telescopic device 6 is arranged on the side of the first channel 3, and the lower end of the telescopic device 6 is fixedly connected to the wind shield 7, and the detection device 1 is electrically connected to the telescopic device 6 to control the lifting and lowering of the wind shield 7; the wind shield 7 includes a transverse plate 71 connected to the telescopic device 6, an upper baffle 72 for blocking the first channel 3 and a lower baffle 73 for blocking the second channel 4, and the transverse plate 71 connects the lower end of the upper baffle 72 and the upper end of the lower baffle 73; when the wind shield 7 moves up to the top end, the first channel 3 is closed and the second channel 4 is opened, and when the wind shield 7 moves down to the bottom end, the first channel 3 is opened and the second channel 4 is closed.

[0020] Specifically, in this embodiment, the second channel 4 is set as a rectangular channel, the height of the second channel 4 is the same as the maximum moving distance of the wind shield 7, the inner channel width of the second channel 4 is the same as the width of the lower baffle 73, and a through hole is opened at the top of one end of the second channel 4 connected to the cotton return port to allow the lower baffle 73 to move down into the second channel 4; when the wind shield 7 moves down to the bottom, the lower baffle 73 blocks the second channel 4, and when the wind shield 7 moves up to the top, the lower baffle 73 no longer blocks the second channel 4 but blocks the through hole to ensure the air tightness of the second channel 4.

[0021] In this embodiment, the telescopic device 6 is configured as a cylinder connecting rod and is fixedly arranged on both sides of the first channel 3. An arc-shaped fixing plate 31 is arranged at one end of the first channel 3 close to the cotton flow channel 5 to reinforce the connection with the cotton flow channel 5, and a connecting plate 32 for enhancing integrity is arranged on the side of the arc-shaped fixing plate 31 to fix and connect the detection device 1.

[0022] Embodiment 2: See also Figure 1 , Figure 3 and Figure 4The embodiment of the present invention provides a cotton regain detection device, including a detection device 1 and a windshield 7. The detection device 1 includes a cotton picking comb 2, a PLC control center, an electrode plate I11, an electrode plate II12 and a driving device 13. One end of the cotton picking comb 2 of the detection device 1 is rotatably arranged at a position of the detection device 1 close to the first channel 3, the electrode plate I11 is arranged at the top end inside the detection device 1, the driving device 13 is arranged at the bottom end inside the detection device 1, and the electrode plate II12 is fixedly arranged at the top of the driving device 13; the PLC control center controls the cotton picking comb 2 to put the cotton sample between the electrode plate I11 and the electrode plate II12, and the PLC control center controls the driving device 13 to drive the electrode plate II12 to move upward to squeeze the cotton sample, and detects the cotton regain by detecting the resistance value of the cotton sample and transmits the detection data back to the PLC control center.

[0023] A first channel 3 is provided inside the detection device 1 to connect to the sampling port of the cotton flow channel 5, and a second channel 4 is provided outside the detection device 1 to connect to the cotton return port of the cotton flow channel 5 located below the sampling port. A telescopic device 6 is arranged on the side of the first channel 3, and the lower end of the telescopic device 6 is fixedly connected to the wind shield 7, and the detection device 1 is electrically connected to the telescopic device 6 to control the lifting and lowering of the wind shield 7; the wind shield 7 includes a transverse plate 71 connected to the telescopic device 6, an upper baffle 72 for blocking the first channel 3 and a lower baffle 73 for blocking the second channel 4, and the transverse plate 71 connects the lower end of the upper baffle 72 and the upper end of the lower baffle 73; when the wind shield 7 moves up to the top end, the first channel 3 is closed and the second channel 4 is opened, and when the wind shield 7 moves down to the bottom end, the first channel 3 is opened and the second channel 4 is closed.

[0024] Specifically, in this embodiment, the upper end of the lower baffle 73 is rotatably set in the second channel 4. The height of the lower baffle 73 is greater than the height of the second channel 4 to limit the lower baffle 73 from rotating toward the cotton flow channel 5. The horizontal plate 71 is provided with a connecting rope 74 to connect the side of the lower baffle 73 close to the detection device. A through hole for the connecting rope 74 to pass through is provided at the upper end of the second channel 4. In this embodiment, the length of the connecting rope 74 is greater than the distance between the horizontal plate 71 and the lower baffle 73, so that the lower baffle 73 is in a blocked state during most of the rising process of the upper baffle 72, thereby providing a more stable internal detection environment for the detection device 1.

[0025] In this embodiment, the telescopic device 6 is configured as a cylinder connecting rod and is fixedly arranged on both sides of the first channel 3. An arc-shaped fixing plate 31 is arranged at one end of the first channel 3 close to the cotton flow channel 5 to reinforce the connection with the cotton flow channel 5, and a connecting plate 32 for enhancing integrity is arranged on the side of the arc-shaped fixing plate 31 to fix and connect the detection device 1.

[0026] Embodiment 3: This embodiment provides a detection method using the cotton moisture regain detection device provided in Embodiment 1 or Embodiment 2, comprising the following steps: S1. The detection device 1 controls the windshield 7 to move downward, opens the first channel 3 and closes the second channel 4, and the cotton comb 2 rotates into the cotton flow channel 5 to take cotton; S2. The cotton comb 2 rotates back and the cotton sample is placed in the detection device 1 to detect the moisture regain of the cotton sample; S3. The detection device 1 controls the wind shield 7 to move upward, closes the first channel 3 and opens the second channel 4, and relies on the negative pressure in the cotton flow channel 5 to suck the tested cotton sample out of the second channel 4.

[0027] Through the above method, combined with the characteristics of lint cotton materials, PLC control technology and modern mechanical design means, an automated detection process integrating cotton quantitative collection, cotton pressing, regain detection and cotton sample recovery is completed, which greatly reduces labor intensity and improves the detection accuracy and efficiency of online detection.

[0028] The above embodiments and drawings are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention. The present invention is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that any changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention. Other related technical structures not fully disclosed in the present invention are prior art in the art.

Claims

1. A cotton moisture regain detection device, characterized in that: The detection device (1) comprises a detection device (1) and a windshield (7); a first channel (3) is provided on the inner side of the detection device (1) and is connected to a sampling port of a cotton flow channel (5); and a second channel (4) is provided on the outer side and is connected to a cotton return port of the cotton flow channel (5) located below the sampling port. One end of the cotton picking comb (2) of the detection device (1) is rotatably arranged at a position of the detection device (1) close to the first channel (3); A telescopic device (6) is provided on the side of the first channel (3), the lower end of the telescopic device (6) is fixedly connected to a windshield (7), and the detection device (1) is electrically connected to the telescopic device (6) to control the lifting and lowering of the windshield (7); The windshield (7) comprises a transverse plate (71) connected to the telescopic device (6), an upper baffle (72) for shielding the first channel (3), and a lower baffle (73) for shielding the second channel (4), wherein the transverse plate (71) connects the lower end of the upper baffle (72) and the upper end of the lower baffle (73); When the wind shield (7) moves upward to the top end, the first channel (3) is closed and the second channel (4) is opened; when the wind shield (7) moves downward to the bottom end, the first channel (3) is opened and the second channel (4) is closed.

2. The cotton moisture regain detection device according to claim 1, characterized in that: The second channel (4) is a rectangular channel, the height of the second channel (4) is the same as the maximum moving distance of the wind deflector (7), the inner channel width of the second channel (4) is the same as the width of the lower baffle (73), and a through hole is provided at the top of one end of the second channel (4) connected to the cotton return port so that the lower baffle (73) can move downward into the second channel (4); When the wind shield (7) moves downward to the bottom, the lower baffle (73) blocks the second channel (4); when the wind shield (7) moves upward to the top, the lower baffle (73) no longer blocks the second channel (4) but blocks the through hole to ensure the air tightness of the second channel (4).

3. The cotton moisture regain detection device according to claim 1, characterized in that: The upper end of the lower baffle (73) is rotatably arranged in the second channel (4); the height of the lower baffle (73) is greater than the height of the second channel (4) so ​​as to limit the lower baffle (73) from rotating toward the cotton flow channel (5); a connecting rope (74) is provided on the transverse plate (71) to connect the side of the lower baffle (73) close to the detection device; and a through hole is provided at the upper end of the second channel (4) for the connecting rope to pass through.

4. The cotton moisture regain detection device according to claim 1, characterized in that: The telescopic device (6) is a cylinder connecting rod, which is fixedly arranged on both sides of the first channel (3).

5. The cotton moisture regain detection device according to claim 1, characterized in that: The detection device (1) comprises a PLC control center, an electrode plate I (11), an electrode plate II (12) and a driving device (13), wherein the electrode plate I (11) is arranged at the top end inside the detection device (1), the driving device (13) is arranged at the bottom end inside the detection device (1), and the electrode plate II (12) is fixedly arranged at the top end of the driving device (13); The PLC control center controls the cotton comb (2) to place the cotton sample between the electrode plate I (11) and the electrode plate II. The PLC control center controls the driving device (13) to drive the electrode plate II (12) to move upward to squeeze the cotton sample. The moisture regain of the cotton is detected by detecting the resistance value of the cotton sample and the detection data is transmitted back to the PLC control center.

6. The cotton moisture regain detection device according to claim 1, characterized in that: An arc-shaped fixing plate (31) is provided at one end of the first channel (3) close to the cotton flow channel (5) to reinforce the connection with the cotton flow channel (5), and a connecting plate (32) is provided on the side of the arc-shaped fixing plate (31) to enhance the integrity and fix the connection with the detection device (1).

7. A detection method using the cotton regain detection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. The detection device (1) controls the windshield (7) to move downward, opens the first channel (3) and closes the second channel (4), and the cotton picking comb (2) rotates into the cotton flow channel (5) to pick cotton; S2. The cotton comb (2) rotates back and places the cotton sample into the detection device (1) to detect the moisture regain of the cotton sample; S3. The detection device (1) controls the windshield (7) to move upward, closes the first channel (3) and opens the second channel (4), and relies on the negative pressure in the cotton flow channel (5) to suck the tested cotton sample out of the second channel (4).

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