A gas false twist detector for chemical fiber filaments

Abstract

The invention discloses a chemical fiber filament gas false twister detector, wherein the false twister is provided with an airflow input hole and a vortex airflow hole connected with the airflow input hole; the false twister vortex airflow failure detection and analysis machine comprises a detection workbench, a constant pressure air supply pipeline and a detection control box, and a three-coordinate moving mechanism, a display and a positioning device for installing and positioning the false twister respectively arranged on the detection workbench; a pneumatic nozzle is arranged on the three-coordinate moving mechanism, the constant pressure air supply pipeline is connected with the pneumatic nozzle, the pneumatic nozzle is used to be connected with the airflow input hole of the false twister during detection, a plurality of positioning holes are arranged in an array on the positioning device, and the false twister is positioned in the positioning holes; a flow meter is arranged on the constant pressure air supply pipeline, and the display and the flow meter are respectively connected with the detection control box. The invention improves the efficiency and accuracy of the vortex airflow hole detection on the false twister, and ensures the working characteristics of the vortex airflow of the false twister.

Description

Technical Field

[0001] The invention relates to the technical field of false twister quality detection, in particular to a gas false twister detector for chemical fiber filaments. Background Art

[0002] like Figure 5 The figure shows a new type of false twister used in a chemical fiber production line, which includes a false twist shaft, an air flow input hole arranged on the false twist shaft, and a threading through hole connected vertically to the air flow input hole, and the through hole is offset and connected to one side of the air flow input hole; when working, a number of chemical fiber filaments are inserted into the through hole, and compressed air of a certain pressure is connected from the air flow input hole at the upper end of the false twist shaft. Since the through hole is offset and connected to one side of the air flow input hole, a rotating vortex air flow will be formed after the compressed air enters the through hole, so the through hole is also called a vortex air flow hole. The compressed air entering the vortex air flow hole drives the chemical fiber filaments to rotate after forming a vortex air flow, so that the chemical fiber filaments in the vortex air flow hole are twisted together to form a false twist. The vortex air flow is discharged from both ends of the vortex air flow hole after completing the false twist.

[0003] The above-mentioned new type of false twister is a core component of the chemical fiber production line, and its quality directly affects the quality of the false twist of chemical fiber filaments. Since chemical fiber production lines are often equipped with tens of thousands of false twisters, only by ensuring that all false twisters are of qualified quality can high-quality products be produced. After the false twister has been used for a period of time, foreign matter adhesion or uneven wear will occur in the vortex airflow holes of the false twister. Whether it is foreign matter adhesion or uneven wear, the vortex airflow will be abnormal during operation, thereby affecting the normal operation of the false twister.

[0004] For this reason, it is necessary to detect the shape and size of the vortex airflow hole on the false twister to ensure that the false twister has good vortex airflow characteristics. If the shape and size of the vortex airflow hole of the false twister are detected according to the traditional method, the detection efficiency is low and the accuracy of the detection is also poor. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a chemical fiber filament gas false twister detector, which aims to improve the efficiency and accuracy of the vortex airflow hole detection on the false twister and ensure the working characteristics of the vortex airflow of the false twister. The specific technical solution is as follows:

[0006] A chemical fiber filament gas false twister detector, the false twister is provided with an airflow input hole and a vortex airflow hole connected with the airflow input hole for realizing false twisting operation; the false twister vortex airflow failure detection and analysis machine comprises a detection workbench, a constant pressure air supply pipeline and a detection control box, as well as a three-coordinate moving mechanism, a display and a positioning tray for installing and positioning the false twister respectively arranged on the detection workbench; the three-coordinate moving mechanism is provided with a pneumatic nozzle, the constant pressure air supply pipeline is connected with the pneumatic nozzle, the pneumatic nozzle is used to be connected with the airflow input hole of the false twister during detection, a number of positioning holes are arranged in an array on the positioning tray, and the false twister is positioned in the positioning holes; the constant pressure air supply pipeline is provided with a flow meter, and the display and the flow meter are respectively connected with the detection control box.

[0007] In the present invention, the three-coordinate moving mechanism includes a workbench rail arranged on the detection workbench along the front-to-back direction, a beam movably arranged on the workbench rail, a beam guide arranged on the beam, a test cylinder movably arranged on the beam guide and arranged upright downward, and the pneumatic nozzle is arranged at the lower end of the telescopic part of the test cylinder.

[0008] The three-coordinate moving mechanism enables the pneumatic nozzle to move in three directions, namely, X, Y and Z, so as to facilitate accurate docking of the pneumatic nozzle with the airflow input hole of the false twister during testing.

[0009] Preferably, at least one pair of positioning pins is provided on the detection workbench, and the positioning tray is positioned on the detection workbench through the positioning pins.

[0010] Preferably, the positioning pin is a conical positioning pin.

[0011] In the present invention, a clamping cylinder is further provided on the detection workbench, and a pressure plate is provided on the piston rod of the clamping cylinder. After the positioning tray is positioned by the positioning pin, it is pressed on the detection workbench by the pressure plate on the clamping cylinder.

[0012] In the present invention, a loading and unloading workbench is also provided next to the detection workbench, and a loading station and an unloading station are provided on the loading and unloading workbench; wherein, a unloading fixture for ejecting the false twister in the positioning hole of the positioning tray for easy taking is provided on the unloading station of the loading and unloading workbench, and the unloading fixture comprises a unloading base plate provided on the unloading station, and a number of ejector pins fixed on the unloading base plate, and the number of ejector pins are arranged in an array on the unloading base plate; the array arrangement of the ejector pins on the unloading base plate is consistent with the array arrangement of the positioning holes on the positioning tray to realize the simultaneous ejection of each false twister in the positioning tray.

[0013] During operation, after placing the positioning tray on the unloading fixture, the push pin can push the false twister upward for a distance, making it easy to take; since the positioning tray is arranged in an integer array, it can be easily identified and conveniently taken, which is conducive to improving work efficiency.

[0014] In order to facilitate the operator to better identify unqualified false twisters on the positioning tray, the display is provided with a number of display sub-areas for displaying the air flow conditions of each false twister in the positioning tray. The number of display sub-areas are arranged in an array on the display, and the array arrangement of the display sub-areas on the display is consistent with the array arrangement of the positioning holes on the positioning tray to achieve a one-to-one correspondence between the false twisters at each corresponding position in the positioning tray and the actual air flow conditions displayed in each display sub-area.

[0015] Preferably, when the air flow data of the false twister meets the preset range value, the vortex airflow of the false twister is qualified, and its corresponding display sub-area is displayed in green; when the air flow data of the false twister exceeds the preset range value, the vortex airflow of the false twister is unqualified, and its corresponding display sub-area is displayed in red.

[0016] By setting two display sub-areas of different colors on the display, it is convenient for operators to screen and remove unqualified false twisters on the positioning tray.

[0017] Preferably, the air flow data of the corresponding false twister can also be displayed in each display sub-area.

[0018] Preferably, the false twister vortex airflow failure detection and analysis is arranged after the false twister is cleaned, and the positioning tray is a cleaning and detection dual-purpose tray. When the positioning tray is used, the false twister is first placed on the positioning tray, and then the positioning tray is transported to the cleaning station to clean and dry the false twister, and then the positioning tray is transported to the detection workbench of the false twister vortex airflow failure detection and analysis machine to perform the false twister vortex airflow failure detection and analysis.

[0019] Preferably, the constant pressure gas supply pipeline is provided with a regulating valve for adjusting the flow rate of no-load gas on the constant pressure gas supply pipeline.

[0020] In the present invention, the false twister includes a false twist shaft, the vortex airflow hole is arranged through the lower part of the false twist shaft and is perpendicular to the axial direction of the false twist shaft, the airflow input hole is arranged in the axial direction of the false twist shaft and is connected to the vortex airflow hole, and the vortex airflow hole is offset and connected to one side of the lower part of the airflow input hole to form a vortex airflow for false twisting operation.

[0021] In the present invention, the false twist shaft is provided with a slit which is in communication with the vortex air flow hole.

[0022] In the present invention, the array arrangement is preferably a matrix array arrangement.

[0023] In the present invention, a pressure controller and an oil and water removal valve group are also provided on the constant pressure gas supply pipeline to stabilize the pipeline pressure and remove oil and water.

[0024] The method of use of the present invention is as follows:

[0025] (1) Positioning of the false twister: The operator places the false twisters one by one on the positioning tray;

[0026] (2) Cleaning of the false twister: The positioning tray with the false twister is transferred to the cleaning equipment for cleaning and drying; after the false twister is cleaned, the positioning tray can be transferred to the loading and unloading workbench of the false twister vortex airflow failure detection and analysis machine for temporary storage;

[0027] (3) Installation and positioning of the false twister: After cleaning the false twister, the positioning tray is transferred to the false twister vortex airflow failure detection and analysis machine. The positioning tray is positioned with the detection workbench through the positioning pins, and then the start button on the detection control box is turned on. The four pressing cylinders press the positioning tray. The magnetic switches of the four pressing cylinders are all on, indicating that the positioning tray is placed normally;

[0028] (4) False twister test: After the positioning tray is confirmed to be placed normally, the machine starts automatic testing; the three-coordinate moving mechanism of the machine tests each false twister one by one by connecting the pneumatic nozzle to the air flow input hole of the false twister on the positioning tray according to the XY fixed length rule; after each test, the gas flow data of the false twister is displayed in real time on the display until all the false twisters on the positioning tray are tested; among them, the gas flow data with a red background are unqualified false twisters;

[0029] (5) Unloading and screening: Place the tested positioning tray on the unloading fixture, and use the ejector pin of the unloading fixture to push the false twister upward from the positioning tray; the operator removes the unqualified false twisters according to the prompts on the display:

[0030] (6) Continuous testing: After testing the false twister on each positioning tray, wait for the next positioning tray to be put in again and repeat steps (3) to (5) for testing; before testing, the test data of the false twister on the previous positioning tray is automatically cleared.

[0031] The beneficial effects of the present invention are:

[0032] First, a chemical fiber filament gas false twister detector of the present invention determines whether the vortex air flow holes on the false twister are qualified by testing the air flow data of the false twister. Whether the foreign matter adhesion or uneven wear of the vortex air flow holes on the false twister can be detected, the detection convenience and accuracy are better than the conventional size and shape detection method.

[0033] Secondly, in the chemical fiber filament gas false twister detector of the present invention, the pneumatic nozzle is arranged on the three-coordinate moving mechanism, thereby realizing the centralized automatic detection of the false twister, thereby further improving the detection efficiency and avoiding the mistakes caused by human detection.

[0034] Thirdly, the chemical fiber filament gas false twister detector of the present invention facilitates the operator to screen and remove unqualified false twisters on the positioning tray by setting two display sub-areas of different colors on the display.

[0035] Fourthly, in a chemical fiber filament gas false twister detector of the present invention, the positioning tray is a dual-purpose tray for cleaning and testing, and the false twister vortex airflow failure detection and analysis is arranged after the false twister is cleaned. The false twister does not need to be removed from the positioning tray after cleaning, thereby saving tooling costs and reducing costs on the one hand, and greatly improving production efficiency on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structural schematic diagram of a chemical fiber filament gas false twist detector of the present invention;

[0037] Figure 2 It is a schematic diagram of the planar structure of a gas false twist detector for chemical fiber filaments of the present invention;

[0038] Figure 3 yes Figure 2 A top view of

[0039] Figure 4 It is a schematic diagram of display sub-areas set on the display;

[0040] Figure 5 It is a structural schematic diagram of a false twister.

[0041] In the figure: 1. air flow input hole, 2. vortex air flow hole, 3. detection workbench, 4. constant pressure air supply pipeline, 5. detection control box, 6. three-coordinate moving mechanism, 7. display, 8. false twister, 9. positioning tray, 10. pneumatic nozzle, 11. positioning hole, 12. flow meter, 13. workbench guide rail, 14. beam, 15. beam guide rail, 16. test cylinder, 17. positioning pin, 18. clamping cylinder, 19. pressing plate, 20. loading and unloading workbench, 21. loading station, 22. unloading station, 23. unloading fixture, 24. unloading bottom plate, 25. ejector pin, 26. display sub-area, 27. regulating valve, 28. false twist shaft, 29. slit. DETAILED DESCRIPTION

[0042] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0043] like Figures 1 to 5 The figure shows an embodiment of a gas false twister detector for chemical fiber filaments of the present invention, wherein the false twister 8 is provided with an airflow input hole 1 and a vortex airflow hole 2 connected with the airflow input hole 1 for realizing false twisting operation; the false twister vortex airflow failure detection and analysis machine comprises a detection workbench 3, a constant pressure air supply pipeline 4 and a detection control box 5, as well as a three-coordinate moving mechanism 6, a display 7 and a positioning tray 9 for installing and positioning the false twister 8, which are respectively arranged on the detection workbench 3; the three-coordinate moving mechanism 6 is provided with a pneumatic nozzle 10, the constant pressure air supply pipeline 4 is connected with the pneumatic nozzle 10, and the pneumatic nozzle 10 is used to be connected with the airflow input hole 1 of the false twister 8 during detection, and the positioning tray 9 is provided with a plurality of positioning holes 11 in an array arrangement, and the false twister 8 is positioned in the positioning holes 11; the constant pressure air supply pipeline 4 is provided with a flow meter 12, and the display 7 and the flow meter 12 are respectively connected with the detection control box 5.

[0044] In this embodiment, the three-coordinate moving mechanism 6 includes a workbench guide rail 13 arranged on the detection workbench 3 along the front-to-back direction, a beam 14 movably arranged on the workbench guide rail 13, a beam guide rail 15 arranged on the beam 14, a test cylinder 16 movably arranged on the beam guide rail 15 and arranged upright downward, and the pneumatic nozzle 10 is arranged at the lower end of the telescopic part of the test cylinder 16.

[0045] The three-coordinate moving mechanism 6 enables the pneumatic nozzle 10 to move in three directions, namely, X, Y and Z, so as to facilitate accurate docking of the pneumatic nozzle 10 with the airflow input hole 1 of the false twister 8 during testing.

[0046] Preferably, at least one pair of positioning pins 17 is provided on the detection workbench 3 , and the positioning tray 9 is positioned on the detection workbench 3 by the positioning pins 17 .

[0047] Preferably, the positioning pin 17 is a conical positioning pin.

[0048] In this embodiment, a clamping cylinder 18 is also provided on the detection workbench 3, and a pressure plate 19 is provided on the piston rod of the clamping cylinder 18. The positioning tray 9 is positioned by the positioning pin 17 and then pressed on the detection workbench 3 by the pressure plate 19 on the clamping cylinder 18.

[0049] In this embodiment, a loading and unloading workbench 20 is also arranged next to the detection workbench 3, and a loading station 21 and an unloading station 22 are arranged on the loading and unloading workbench 20; wherein, a unloading station 22 of the loading and unloading workbench 20 is provided with a unloading fixture 23 for ejecting the false twister 8 in the positioning hole 11 of the positioning tray 9 for easy taking, and the unloading fixture 23 includes a unloading base plate 24 arranged on the unloading station 22, and a number of ejector pins 25 fixed on the unloading base plate 24, and the number of ejector pins 25 are arranged in an array on the unloading base plate 24; the array arrangement of the ejector pins 25 on the unloading base plate 24 is consistent with the array arrangement of the positioning holes 11 on the positioning tray 9 to realize the simultaneous ejection of each false twister 8 in the positioning tray 9.

[0050] During operation, after placing the positioning tray 9 on the unloading fixture 23, the push pin 25 can push the false twister 8 upward for a distance, which is convenient for taking; since the positioning tray 9 is arranged in an integer array, it can be easily identified and conveniently taken, which is conducive to improving work efficiency.

[0051] In order to facilitate the operator to better identify the unqualified false twisters 8 on the positioning tray 9, the display 7 is provided with a number of display sub-areas 26 for displaying the air flow conditions of each false twister 8 in the positioning tray 9. The number of display sub-areas 26 are arranged in an array on the display 7, and the array arrangement of the display sub-areas 26 on the display 7 is consistent with the array arrangement of the positioning holes 11 on the positioning tray 9 to achieve a one-to-one correspondence between the false twisters 8 at each corresponding position in the positioning tray 9 and the actual air flow conditions displayed by each display sub-area 26.

[0052] Preferably, when the air flow data of the false twister 8 meets the preset range value, the vortex airflow of the false twister 8 is qualified, and the corresponding display sub-area 26 is displayed in green; when the air flow data of the false twister 8 exceeds the preset range value, the vortex airflow of the false twister 8 is unqualified, and the corresponding display sub-area 26 is displayed in red.

[0053] By providing two display sub-areas 26 of different colors on the display 7 , it is convenient for operators to screen and remove unqualified false twisters 8 on the positioning tray 9 .

[0054] Preferably, the air flow data of the corresponding false twister 6 can also be displayed in each display sub-area 26 .

[0055] Preferably, the vortex airflow failure detection and analysis of the false twister 8 is arranged after the false twister 8 is cleaned, and the positioning tray 9 is a cleaning and detection dual-purpose tray. When the positioning tray 9 is used, the false twister 8 is first placed on the positioning tray 9, and then the positioning tray 9 is transported to the cleaning station to clean and dry the false twister 8, and then the positioning tray 9 is transported to the detection workbench 3 of the false twister vortex airflow failure detection and analysis machine to perform the false twister 8 vortex airflow failure detection and analysis.

[0056] Preferably, the constant pressure gas supply pipeline 4 is provided with a regulating valve 27 for adjusting the flow rate of the idle gas on the constant pressure gas supply pipeline 4 .

[0057] In this embodiment, the false twister 8 includes a false twist shaft 28, the vortex airflow hole 2 is arranged through the lower part of the false twist shaft 28 and is perpendicular to the axial direction of the false twist shaft 28, the airflow input hole 1 is arranged in the axial direction of the false twist shaft 28 and is connected to the vortex airflow hole 2, and the vortex airflow hole 2 is offset and connected to one side of the lower part of the airflow input hole 1 to form a vortex airflow for false twisting operation.

[0058] In this embodiment, the false twist shaft 28 is provided with a slit 29 which is connected to the vortex air flow hole 1 .

[0059] In this embodiment, the array arrangement is preferably a matrix array arrangement (a 10×20 matrix array in the figure).

[0060] In the present invention, the constant pressure gas supply pipeline 4 is also provided with a pressure controller and an oil and water removal valve group for stabilizing the pipeline pressure and removing oil and water.

[0061] The method of using this embodiment is as follows:

[0062] (1) Positioning of the false twister: The operator places the false twisters 8 one by one onto the positioning tray 9;

[0063] (2) Cleaning of the false twister: The positioning tray 9 equipped with the false twister 8 is transported to a cleaning device for cleaning and drying; after the false twister 8 is cleaned, the positioning tray 9 can be transported to the loading and unloading workbench 20 of the false twister vortex airflow failure detection and analysis machine for temporary storage;

[0064] (3) Installation and positioning of the false twister: After the false twister 8 is cleaned, the positioning tray 9 is transferred to the false twister vortex airflow failure detection and analysis machine. The positioning tray 9 is positioned with the detection workbench 3 through the positioning pin 17, and then the start button on the detection control box 5 is turned on. The four pressing cylinders 18 press the positioning tray 9. The magnetic switches of the four pressing cylinders 18 are all on, indicating that the positioning tray 9 is placed normally;

[0065] (4) False twister test: After the positioning tray 9 is confirmed to be placed normally, the machine starts automatic testing; the three-coordinate moving mechanism 6 of the machine tests each false twister 8 one by one by docking the pneumatic nozzle 10 with the air flow input hole 1 of the false twister 8 on the positioning tray 9 according to the XY fixed length rule; after each test, the gas flow data of the false twister 8 is displayed in real time on the display until all the false twisters 8 on the positioning tray 9 are tested; among them, the gas flow data with a red background are unqualified false twisters 8;

[0066] (5) Unloading and screening: Place the tested positioning tray 9 on the unloading fixture 23, and push the false twister 8 upward from the positioning tray 9 through the ejector pin 25 of the unloading fixture 23; the operator removes the unqualified false twister 8 according to the prompts on the display:

[0067] (6) Continuous testing: After testing the false twister 8 on each positioning tray 9, wait for the next positioning tray 9 to be put in again and repeat steps (3) to (5) to perform the test; before testing, the test data of the false twister 8 on the previous positioning tray 9 is automatically cleared.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gas false twist detector for chemical fiber filaments, characterized in that: The false twister is provided with an airflow input hole and a vortex airflow hole connected with the airflow input hole for realizing false twisting operation; the false twister vortex airflow failure detection and analysis machine comprises a detection workbench, a constant pressure air supply pipeline and a detection control box, and a three-coordinate moving mechanism, a display and a positioning tray for installing and positioning the false twister respectively arranged on the detection workbench; the three-coordinate moving mechanism is provided with a pneumatic nozzle, the constant pressure air supply pipeline is connected with the pneumatic nozzle, the pneumatic nozzle is used to be connected with the airflow input hole of the false twister during detection, a number of positioning holes are arranged in an array on the positioning tray, and the false twister is positioned in the positioning holes; a flow meter is provided on the constant pressure air supply pipeline, and the display and the flow meter are respectively connected with the detection control box; The three-coordinate moving mechanism includes a workbench guide rail arranged on the detection workbench along the front-back direction, a crossbeam movably arranged on the workbench guide rail, a crossbeam guide rail arranged on the crossbeam, a test cylinder movably arranged on the crossbeam guide rail and arranged vertically downward, and the pneumatic nozzle is arranged at the lower end of the telescopic component of the test cylinder; A loading and unloading workbench is also provided next to the detection workbench, and a loading station and an unloading station are provided on the loading and unloading workbench; wherein, a discharging fixture for ejecting the false twister in the positioning hole of the positioning tray for easy taking is provided on the unloading station of the loading and unloading workbench, and the discharging fixture comprises a discharging bottom plate provided on the unloading station, and a number of ejecting pins fixed on the discharging bottom plate, and the number of ejecting pins are arranged in an array on the discharging bottom plate; the array arrangement of the ejecting pins on the discharging bottom plate is consistent with the array arrangement of the positioning holes on the positioning tray to realize the simultaneous ejection of each false twister in the positioning tray; The false twister includes a false twist shaft, the vortex airflow hole is arranged through the lower part of the false twist shaft and is perpendicular to the axial direction of the false twist shaft, the airflow input hole is arranged in the axial direction of the false twist shaft and is connected to the vortex airflow hole, and the vortex airflow hole is offset and connected to one side of the lower part of the airflow input hole to form a vortex airflow for false twisting operation.

2. A chemical fiber filament gas false twist detector according to claim 1, characterized in that: At least one pair of positioning pins is provided on the detection workbench, and the positioning tray is positioned on the detection workbench through the positioning pins.

3. A chemical fiber filament gas false twist detector according to claim 2, characterized in that: The detection workbench is also provided with a clamping cylinder, and a pressing plate is provided on the piston rod of the clamping cylinder. After the positioning tray is positioned by the positioning pin, it is pressed on the detection workbench by the pressing plate on the clamping cylinder.

4. A chemical fiber filament gas false twist detector according to claim 1, characterized in that: The display is provided with a number of display sub-areas for displaying the air flow conditions of each false twister in the positioning tray. The number of display sub-areas are arranged in an array on the display, and the array arrangement of the display sub-areas on the display is consistent with the array arrangement of the positioning holes on the positioning tray to achieve a one-to-one correspondence between the false twisters at each corresponding position in the positioning tray and the actual air flow conditions displayed in each display sub-area.

5. A chemical fiber filament gas false twist detector according to claim 1, characterized in that: The positioning tray is a tray for cleaning and testing.

6. A chemical fiber filament gas false twist detector according to claim 1, characterized in that: The constant pressure gas supply pipeline is provided with a regulating valve for adjusting the flow rate of the no-load gas on the constant pressure gas supply pipeline.

7. A chemical fiber filament gas false twist detector according to claim 1, characterized in that: The false twist shaft is provided with a slit which is communicated with the vortex air flow hole.

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