Chemical fiber performance testing device and method

Abstract

The present invention discloses a chemical fiber performance detection device and method, belonging to the field of chemical fiber performance detection. A chemical fiber performance detection device includes a detection platform and a detector, the detector is fixed at the top center of the detection platform, both sides of the top of the detection platform are fixedly connected with mounting plates, the side walls of the mounting plates are fixedly connected with spring telescopic rods, and also includes: a positioning plate, the positioning plate is rotatably connected to the telescopic end of the spring telescopic rod, wherein the positioning plate is symmetrically arranged in two groups, and each group of the positioning plates is provided with a clamping part for fixing the chemical fiber; the present invention reciprocates and stretches and twists the chemical fiber through the reciprocating movement and rotation of the positioning plate, synchronously realizes multi-action simulation, better realizes detection, and can generate friction between multiple groups of chemical fibers, more realistically simulates the use environment of the chemical fiber, and improves the representativeness of the detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical fiber performance detection, and in particular to a chemical fiber performance detection device and method. Background Art

[0002] Chemical fiber refers to fibers made by chemically synthesizing or modifying natural polymers. Because of its many superior physical and chemical properties, it is widely used in textiles, clothing, industry, medical and other fields. In order to ensure the use effect of chemical fiber, it is usually necessary to test its various properties. One of the very important projects is the resilience test of chemical fiber, because resilience is the ability of chemical fiber to return to its original shape after being deformed by external force, which is a key parameter for evaluating its performance and applicability.

[0003] At present, when testing the resilience of chemical fibers, the simulation action is relatively simple, and it is difficult to achieve a good testing effect, which makes the test results less representative; and when testing multiple chemical fibers at the same time, the mutual movement between the chemical fibers will produce a certain amount of debris, which will reduce the cleanliness in the test area and reduce the measurement accuracy of the detector. Therefore, a chemical fiber performance testing device and method are proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that when performing rebound resilience testing, the simulation action is relatively simple and the test results are not representative enough; and the debris generated by the mutual movement between chemical fibers will reduce the cleanliness in the test area and reduce the measurement accuracy of the detector. A chemical fiber performance testing device and method are proposed to solve the problems in the prior art that the simulation action is relatively simple and the test results are not representative enough; and the debris generated by the mutual movement between chemical fibers will reduce the cleanliness in the test area and reduce the measurement accuracy of the detector.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A chemical fiber performance testing device comprises a testing platform and a testing instrument, wherein the testing instrument is fixed at the top center of the testing platform, mounting plates are fixedly connected to both sides of the top of the testing platform, spring telescopic rods are fixedly connected to the side walls of the mounting plates, and further comprises: a positioning disk, wherein the positioning disk is rotatably connected to the telescopic end of the spring telescopic rod, wherein the positioning disks are symmetrically arranged in two groups, each group of the positioning disks is provided with a clamping part for fixing the chemical fiber, and the mounting plate is provided with a winding part for simultaneously driving the two groups of positioning disks to move; a cleaning component, wherein the cleaning component is arranged on the positioning disk, and the cleaning component is used to collect debris generated during the torsion and stretching of the chemical fiber.

[0007] To facilitate the simulation detection action, preferably, the winding part includes a driving shaft, which is rotatably connected between the mounting plates on both sides, and long gears are fixedly connected on both sides of the driving shaft, a driving motor is fixedly connected to the mounting plate on one side, and the output shaft of the driving motor is fixedly connected to the end of the driving shaft, and a guide rod is fixedly connected between the mounting plates on both sides, and reciprocating threads are provided on both sides of the guide rod, and a linkage gear is threadedly sleeved on the reciprocating thread, and the linkage gear is meshingly connected to the long gear, and positioning rings are fixedly connected on both sides of the outer wall of the positioning plate, and a driven gear is fixedly connected to the middle part of the outer wall of the positioning plate, and the driven gear is meshingly connected to the linkage gear.

[0008] Furthermore, the guide rods at both ends of the reciprocating thread are fixedly connected to limit rings, and the threads of the reciprocating threads on both sides are opposite.

[0009] In order to facilitate the fixation of chemical fibers, preferably, the clamping part includes a clamping groove, air push grooves are opened on both sides of the clamping groove, clamping plates are slidably connected in the air push grooves, a first spring is fixedly connected between the side wall of the clamping plate and the inner wall of the air push groove, the air push grooves on both sides are connected by ventilation grooves, an air pump is fixedly connected to the positioning ring, and the output end of the air pump is connected to the ventilation groove.

[0010] In order to improve the cleanliness of the detection environment, preferably, a telescopic sleeve is fixedly connected to the side wall of the mounting plate, and the telescopic end of the telescopic sleeve is fixedly connected to an air guide ring, the air guide ring is tightly fitted on the side wall of the positioning plate, and the air guide ring and the side wall of the positioning plate are slidably connected, a dust suction groove is provided in the positioning plate, dust suction holes and air vents are respectively provided on both sides of the dust suction groove, the dust suction holes face the center of the detection platform, the air vents are connected with the inner cavity of the air guide ring, the piston cavity of the telescopic sleeve is connected with the rear end piston cavity of the spring telescopic rod, an upper air suction pipe is fixed on and connected to the air guide ring, the other end of the upper air suction pipe is connected with the front end piston cavity of the spring telescopic rod, and a one-way valve is provided in the upper air suction pipe.

[0011] Furthermore, a dust box is fixed on the upper air intake pipe and connected to the upper air intake pipe, a lower air intake pipe is fixed on the side wall of the dust box and connected to the lower air intake pipe, the other end of the lower air intake pipe is connected to the rear end piston cavity of the spring telescopic rod, and dust filters are fixedly connected to the connecting ports of the lower air intake pipe, the upper air intake pipe and the dust box, and a one-way valve is arranged in the lower air intake pipe.

[0012] In order to improve the clamping stability, preferably, an air filling groove is opened in the telescopic end of the spring telescopic rod, and the two ends of the air filling groove are respectively connected with the ventilation groove and the rear end piston cavity of the spring telescopic rod, and a one-way valve is arranged in the air filling groove.

[0013] In order to improve the detection accuracy, preferably, a blow box is fixedly connected to the surface of the detection platform, and both sides of the blow box are fixed and connected with air ducts, the other end of the air duct is connected to the rear end piston cavity of the spring telescopic rod, and a one-way valve is arranged in the air duct.

[0014] In order to facilitate the drainage of frictional heat, preferably, a guide groove is provided in the limit ring close to the mounting plate, and a plurality of groups of guide holes are provided at equal intervals on the side of the guide groove facing the linkage gear, and both sides of the front end piston cavity of the spring telescopic rod are fixed and connected with a guide pipe, the other end of the guide pipe is connected to the inner cavity of the guide groove, and a one-way valve is arranged in the guide pipe.

[0015] A method for detecting properties of chemical fibers, comprising the following steps:

[0016] Step 1: Fix the chemical fiber to be tested between the positioning plates on both sides, and obtain the original rebound data of the chemical fiber through the detector;

[0017] Step 2: Stretch and twist the chemical fiber by driving the positioning disk to simulate the chemical fiber resilience detection action;

[0018] Step 3: Collect and process the chemical fiber debris generated during stretching and torsion;

[0019] Step 4: Obtain the rebound data of chemical fiber after stretching and twisting through the detector;

[0020] Step 5: Compare the rebound data of chemical fibers before and after, and analyze the rebound performance of chemical fibers.

[0021] Compared with the prior art, the present invention provides a chemical fiber performance detection device and method, which has the following beneficial effects:

[0022] 1. The chemical fiber performance testing device reciprocates and stretches and twists the chemical fiber through the reciprocating movement and rotation of the positioning disk, realizes multi-action simulation synchronously, realizes better detection, and can generate friction between multiple groups of chemical fibers, more realistically simulates the use environment of the chemical fiber, and improves the representativeness of the test results.

[0023] 2. The chemical fiber performance testing device uses the air pressure generated in the spring telescopic rod to directionally suck away the debris generated by the friction between chemical fibers, thereby preventing the debris from spreading and covering the detector and the area, thereby improving the cleanliness and detection accuracy in the detection area; and the detection end of the detector can be blown clean, ensuring the clarity of the detection end of the detector and improving the accuracy of the detection results.

[0024] 3. The chemical fiber performance testing device compresses the gas inside the spring telescopic rod by moving the positioning ring, so that the gas enters the inflation groove along the ventilation groove, thereby increasing the air pressure inside the inflation groove. Therefore, the clamping plates on both sides will fit the chemical fiber more tightly, thereby improving the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structure of a chemical fiber performance testing device proposed by the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 The overall structure of a chemical fiber performance testing device proposed by the present invention is shown in FIG. Figure 2 ;

[0027] Figure 3 A schematic diagram of a top view of a partially sectional structure of a chemical fiber performance detection device proposed by the present invention;

[0028] Figure 4 A chemical fiber performance detection device proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0029] Figure 5 A chemical fiber performance detection device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 6 This is a schematic diagram of a partial cross-sectional structure of a chemical fiber performance detection device proposed by the present invention;

[0031] Figure 7 A chemical fiber performance detection device proposed by the present invention Figure 6 Schematic diagram of the enlarged structure of the middle C area;

[0032] Figure 8 This is a side view half-section structural schematic diagram of a chemical fiber property detection device proposed by the present invention.

[0033] In the figure: 1. test table; 2. tester; 3. mounting plate; 31. spring telescopic rod; 4. positioning plate; 41. positioning ring; 42. driven gear; 5. driving shaft; 51. long gear; 52. driving motor; 53. guide rod; 531. reciprocating thread; 532. limit ring; 54. linkage gear; 6. clamping groove; 61. air push groove; 611. ventilation groove; 62. clamping plate; 63. first spring; 64. air pump; 7. telescopic sleeve; 71. air guide ring; 72. dust suction groove; 721. dust suction hole; 722. ventilation hole; 73. upper air suction pipe; 74. dust collecting box; 741. lower air suction pipe; 742. dust filter; 75. inflation groove; 8. blowing box; 81. air guide pipe; 9. guide groove; 91. guide hole; 92. guide pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Embodiment 1:

[0037] Reference Figure 1-Figure 8 A chemical fiber performance testing device includes a testing platform 1 and a testing instrument 2, the testing instrument 2 is fixed at the top center of the testing platform 1, both sides of the top of the testing platform 1 are fixedly connected with mounting plates 3, and the side walls of the mounting plates 3 are fixedly connected with spring telescopic rods 31, and also includes: a positioning disk 4, the positioning disk 4 is rotatably connected to the telescopic end of the spring telescopic rod 31, wherein the positioning disk 4 is symmetrically arranged in two groups, each group of the positioning disks 4 is provided with a clamping part for fixing the chemical fiber, and the mounting plate 3 is provided with a winding part for simultaneously driving the two groups of positioning disks 4 to move; a cleaning component, the cleaning component is arranged on the positioning disk 4, and the cleaning component is used to collect debris generated during the torsion and stretching of the chemical fiber.

[0038] Reference Figure 1-Figure 3, wherein the winding part includes a driving shaft 5, which is rotatably connected between the mounting plates 3 on both sides. Long gears 51 are fixedly connected on both sides of the driving shaft 5, a driving motor 52 is fixedly connected to one mounting plate 3, and the output shaft of the driving motor 52 is fixedly connected to the end of the driving shaft 5. A guide rod 53 is fixedly connected between the mounting plates 3 on both sides. Reciprocating threads 531 are provided on both sides of the guide rod 53, and a linkage gear 54 is threadedly sleeved on the reciprocating thread 531, and the linkage gear 54 is meshed with the long gear 51. Positioning rings 41 are fixedly connected on both sides of the outer wall of the positioning plate 4, and a driven gear 42 is fixedly connected to the middle part of the outer wall of the positioning plate 4, and the driven gear 42 is meshed with the linkage gear 54; limiting rings 532 are fixedly connected to the guide rods 53 at both ends of the reciprocating thread 531, and the threads of the reciprocating threads 531 on both sides are opposite.

[0039] Through the arrangement of the above structure, the driving motor 52 is turned on to drive the driving shaft 5 and the long gear 51 to rotate. At this time, the meshing action of the long gear 51 and the linkage gear 54 will cause the linkage gear 54 to rotate on the reciprocating thread 531. By utilizing the characteristics of the reciprocating thread 531, the linkage gear 54 will slide back and forth along the reciprocating thread 531 while rotating. When the linkage gear 54 slides, the positioning disk 4 will be driven to move at the same time through the arrangement of the positioning ring 41. At the same time, in conjunction with the meshing relationship between the driven gear 42 and the linkage gear 54, the positioning disk 4 will also rotate while moving, thereby reciprocatingly stretching and twisting the chemical fibers between the positioning disks 4 on both sides, better realizing the stretching simulation, and generating friction between multiple groups of chemical fibers, more realistically simulating the use environment of the chemical fibers, and improving the representativeness of the detection results.

[0040] Reference Figure 1 , Figure 4 and Figure 8 The clamping portion includes a clamping groove 6, air pushing grooves 61 are provided on both sides of the clamping groove 6, a clamping plate 62 is slidably connected in the air pushing groove 61, a first spring 63 is fixedly connected between the side wall of the clamping plate 62 and the inner wall of the air pushing groove 61, the air pushing grooves 61 on both sides are connected through a ventilation groove 611, an air pump 64 is fixedly connected to the positioning ring 41, and the output end of the air pump 64 is connected to the ventilation groove 611.

[0041] It should be noted that the air pump 64 adopts an existing two-way gas pump, which can perform inflation and deflating.

[0042] Through the arrangement of the above structure, the air pump 64 is turned on to fill the air pushing groove 61 with gas, pushing the clamping plates 62 on both sides close to the chemical fiber, so as to clamp and fix the chemical fiber; and after the detection is completed, the air pump 64 is used again to suck out the gas filled in the air pushing groove 61 to release the clamping, which effectively improves the convenience of detection.

[0043] Reference Figure 6-Figure 8 , wherein a telescopic sleeve 7 is fixedly connected to the side wall of the mounting plate 3, and an air guide ring 71 is fixedly connected to the telescopic end of the telescopic sleeve 7, the air guide ring 71 is tightly fitted on the side wall of the positioning plate 4, and the air guide ring 71 and the side wall of the positioning plate 4 are slidably connected, a dust suction groove 72 is provided in the positioning plate 4, and dust suction holes 721 and air vents 722 are respectively provided on both sides of the dust suction groove 72, the dust suction hole 721 faces the center of the test bench 1, the air vents 722 are connected with the inner cavity of the air guide ring 71, the piston cavity of the telescopic sleeve 7 is connected with the rear end piston cavity of the spring telescopic rod 31, and the air guide ring An upper air intake pipe 73 is fixed on and connected to 71, the other end of the upper air intake pipe 73 is connected to the front end piston cavity of the spring telescopic rod 31, and a one-way valve is provided in the upper air intake pipe 73; a dust collecting box 74 is fixed on and connected to the upper air intake pipe 73, and a lower air intake pipe 741 is fixed on and connected to the side wall of the dust collecting box 74, the other end of the lower air intake pipe 741 is connected to the rear end piston cavity of the spring telescopic rod 31, and a dust filter net 742 is fixedly connected to the connecting port of the lower air intake pipe 741 and the upper air intake pipe 73 and the dust collecting box 74, and a one-way valve is provided in the lower air intake pipe 741.

[0044] It should be noted that the one-way valve in the upper air intake pipe 73 can only allow the gas in the dust box 74 to enter the piston cavity at the front end of the spring telescopic rod 31, and the one-way valve in the lower air intake pipe 741 can only allow the gas in the dust box 74 to enter the piston cavity at the rear end of the spring telescopic rod 31.

[0045] By setting the above structure, when the telescopic end of the spring telescopic rod 31 retracts inward, suction will be generated in the front end piston cavity of the spring telescopic rod 31, and the one-way valve in the upper suction pipe 73 will be opened. At this time, the suction will be transmitted to the dust suction hole 721 along the upper suction pipe 73, the air guide ring 71, the air vent 722 and the dust suction groove 72, so that the debris generated by the friction between the chemical fibers is directionally sucked away, so as to prevent the debris from spreading and covering the detector 2 and the area, thereby improving the cleanliness and detection accuracy in the detection area, and finally the debris will be filtered by the dust filter net 742 to achieve the collection of debris; and when the telescopic sleeve 7 and the spring telescopic rod 31 are extended and reset, suction will be generated in the piston cavity at the rear end of the spring telescopic rod 31, and the one-way valve in the lower suction pipe 741 will be opened, so that when the chemical fiber is reset, suction will also be generated at the dust suction hole 721, so as to achieve dust suction again, effectively improving the dust suction effect.

[0046] Reference Figure 4 , Figure 5 and Figure 7Among them, an air filling groove 75 is opened in the telescopic end of the spring telescopic rod 31, and the two ends of the air filling groove 75 are respectively connected with the ventilation groove 611 and the rear end piston cavity of the spring telescopic rod 31, and a one-way valve is arranged in the air filling groove 75.

[0047] It should be noted that the one-way valve in the inflation groove 75 can only allow the gas in the piston cavity at the rear end of the spring telescopic rod 31 to enter the inflation groove 75 .

[0048] Through the arrangement of the above structure, when the two groups of positioning plates 4 move in opposite directions at the same time, the spring telescopic rod 31 will be squeezed, so that the telescopic end of the spring telescopic rod 31 will retract inward, thereby compressing the gas in the piston cavity at the rear end of the spring telescopic rod 31. At the same time, the telescopic end of the telescopic sleeve 7 will also retract inward, and the gas in the telescopic sleeve 7 will be pressed into the piston cavity at the rear end of the spring telescopic rod 31. At this time, the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 will open the one-way valve in the inflation groove 75 and enter the air push groove 61 along the ventilation groove 611, thereby increasing the internal air pressure of the air push groove 61, so that the clamping plates 62 on both sides will fit more tightly with the chemical fiber, thereby improving the clamping effect.

[0049] Reference Figure 1 , Figure 2 A blow box 8 is fixedly connected to the surface of the testing platform 1, and both sides of the blow box 8 are fixed and connected with an air guide tube 81, the other end of the air guide tube 81 is connected to the rear end piston cavity of the spring telescopic rod 31, and a one-way valve is arranged in the air guide tube 81.

[0050] It should be noted that the one-way valve in the air guide tube 81 can only allow the gas in the piston cavity at the rear end of the spring telescopic rod 31 to enter the blowing box 8; and the pressure required to open the one-way valve in the air guide tube 81 is greater than the pressure required to open the one-way valve in the inflation groove 75.

[0051] Through the arrangement of the above structure, when the air pressure in the air push groove 61 reaches the threshold value, the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 can no longer continue to push open the one-way valve in the inflation groove 75. When the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 continues to increase, the one-way valve in the air guide tube 81 will be pushed open, so that the compressed gas enters the blowing box 8 along the air guide tube 81, and is finally blown toward the detector 2 by the air guide tube 81, so as to blow and clean the detection end of the detector 2, thereby ensuring the clarity of the detection end of the detector 2 and improving the accuracy of the detection result.

[0052] Reference Figure 1 , Figure 2 and Figure 6A guide groove 9 is provided in the limiting ring 532 near the side of the mounting plate 3, and a plurality of guide holes 91 are provided at equal intervals on the side of the guide groove 9 facing the linkage gear 54. Both sides of the front piston cavity of the spring telescopic rod 31 are fixed and connected with an air guide pipe 81. The other end of the guide pipe 92 is connected with the inner cavity of the guide groove 9, and a one-way valve is provided in the guide pipe 92.

[0053] It should be noted that the one-way valve in the guide tube 92 can only allow the gas in the front piston cavity of the spring telescopic rod 31 to enter the guide groove 9.

[0054] Through the arrangement of the above structure, when the spring telescopic rod 31 extends and rebounds, the gas in the piston cavity at its front end will be compressed and the one-way valve in the guide tube 92 will be opened, so that the compressed airflow will be blown along the guide tube 92 and the guide groove 9 from the guide hole 91 to the connection between the linkage gear 54 and the reciprocating thread 531, thereby realizing the rapid dissipation of the friction heat generated by the two and improving the durability of the two.

[0055] Embodiment 2:

[0056] Reference Figure 1-Figure 8 , which is basically the same as Example 1, on the basis of Example 1, a method for detecting properties of chemical fibers is proposed, and the steps are as follows:

[0057] Step 1: fix the chemical fiber to be tested between the positioning plates 4 on both sides, and obtain the original rebound data of the chemical fiber through the detector 2;

[0058] Step 2: Driving the positioning disk 4 to stretch and twist the chemical fiber to simulate the chemical fiber resilience detection action;

[0059] Step 3: Collect and process the chemical fiber debris generated during stretching and torsion;

[0060] Step 4: Obtaining the rebound data of the chemical fiber after stretching and twisting through the detector 2;

[0061] Step 5: Compare the rebound data of chemical fibers before and after, and analyze the rebound performance of chemical fibers.

[0062] Reference Figure 1-Figure 8In the present invention, when in use, the two ends of multiple chemical fibers of appropriate length are respectively inserted into the clamping grooves 6 on both sides, and the air pump 64 is turned on to fill the air pushing groove 61 with gas, pushing the clamping plates 62 on both sides close to the chemical fibers, so as to clamp and fix the chemical fibers, and at the same time, the detector 2 is used to obtain the hanging distance of the chemical fibers in the natural state at this time. Then, the driving motor 52 is turned on to drive the driving shaft 5 and the long gear 51 to rotate. At this time, the meshing action of the long gear 51 and the linkage gear 54 will cause the linkage gear 54 to rotate on the reciprocating thread 531. By utilizing the characteristics of the reciprocating thread 531, the linkage gear 54 will slide back and forth along the reciprocating thread 531 while rotating. When the linkage gear 54 slides, the positioning plate 4 will be driven to move at the same time through the setting of the positioning ring 41. At the same time, in conjunction with the meshing relationship between the driven gear 42 and the linkage gear 54, the positioning plate 4 will also rotate while moving, so as to reciprocate and stretch and twist the chemical fibers between the positioning rings 41 on both sides, better realize the stretching simulation, and generate friction between multiple groups of chemical fibers, more realistically simulate the use environment of the chemical fibers, and improve the representativeness of the detection results. Finally, after multiple reciprocating stretching and twisting, the detector 2 is used to obtain the falling distance of the chemical fibers at this time, so that the resilience of the chemical fibers can be obtained by analyzing the two sets of data before and after.

[0063] When the two groups of positioning plates 4 move in opposite directions at the same time, the spring telescopic rod 31 will be squeezed, so that the telescopic end of the spring telescopic rod 31 will retract inward, thereby compressing the gas in the piston cavity at the rear end of the spring telescopic rod 31. At the same time, the telescopic end of the telescopic sleeve 7 will also retract inward, and the gas in the telescopic sleeve 7 will be pressed into the piston cavity at the rear end of the spring telescopic rod 31. At this time, the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 will open the one-way valve in the inflation groove 75 and enter the air push groove 61 along the vent groove 611, thereby increasing the internal air pressure of the air push groove 61, so that the clamping plates 62 on both sides will be more tightly attached to the chemical fiber. When the air pressure in the air pushing groove 61 reaches the threshold value, the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 can no longer continue to push open the one-way valve in the inflation groove 75, and when the air pressure in the piston cavity at the rear end of the spring telescopic rod 31 continues to increase, the one-way valve in the air guide tube 81 will be pushed open, so that the compressed gas enters the blowing box 8 along the air guide tube 81, and is finally blown toward the detector 2 by the air guide tube 81, so as to blow and clean the detection end of the detector 2, thereby ensuring the clarity of the detection end of the detector 2 and improving the accuracy of the detection result.

[0064] When the telescopic end of the spring telescopic rod 31 retracts inward, suction is generated in the piston cavity at the front end of the spring telescopic rod 31, and the one-way valve in the upper air intake pipe 73 is opened. At this time, the suction is transmitted along the upper air intake pipe 73, the air guide ring 71, the air vent 722 and the dust suction groove 72 to the dust suction hole 721, so that the debris generated by the friction between the chemical fibers is directionally sucked away, avoiding the diffusion of the debris, improving the cleanliness in the detection area, and finally the debris will be filtered by the dust filter net 742 to collect the debris; and when the telescopic sleeve 7 and the spring telescopic rod 31 are extended and reset, the spring Suction is generated in the piston cavity at the rear end of the telescopic rod 31, and the one-way valve in the lower suction pipe 741 is opened, so that when the chemical fiber is reset, suction is also generated at the dust suction hole 721, thereby further improving the dust suction effect; and when the spring telescopic rod 31 is extended and rebounded, the gas in the piston cavity at its front end will be compressed, and the one-way valve in the guide pipe 92 will be opened, so that the compressed airflow will be blown along the guide pipe 92 and the guide groove 9 from the guide hole 91 to the connection between the linkage gear 54 and the reciprocating thread 531, thereby realizing the rapid dissipation of the friction heat generated by the two, thereby improving the durability of both.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chemical fiber performance testing device, comprising a testing platform (1) and a testing instrument (2), wherein the testing instrument (2) is fixed at the top center of the testing platform (1), characterized in that: The detection platform (1) has mounting plates (3) fixedly connected to both sides of the top, and a spring telescopic rod (31) fixedly connected to the side wall of the mounting plate (3), and further comprises: A positioning plate (4), wherein the positioning plate (4) is rotatably connected to the telescopic end of the spring telescopic rod (31). The positioning discs (4) are symmetrically arranged in two groups, each group of the positioning discs (4) is provided with a clamping portion for fixing the chemical fiber, and the mounting plate (3) is provided with a winding portion for simultaneously driving the two groups of positioning discs (4) to move; A cleaning component, the cleaning component is arranged on the positioning plate (4), and the cleaning component is used to collect debris generated during the torsion and stretching of the chemical fiber. A telescopic sleeve (7) is fixedly connected to the side wall of the mounting plate (3); an air guide ring (71) is fixedly connected to the telescopic end of the telescopic sleeve (7); the air guide ring (71) is tightly fitted on the side wall of the positioning plate (4); and the air guide ring (71) and the side wall of the positioning plate (4) are slidably connected; a dust suction groove (72) is provided in the positioning plate (4); dust suction holes (721) and air vents (722) are respectively provided on both sides of the dust suction groove (72); The dust suction hole (721) faces the center of the test bench (1); the air vent (722) is connected to the inner cavity of the air guide ring (71); the piston cavity of the telescopic sleeve (7) is connected to the rear end piston cavity of the spring telescopic rod (31); an upper air suction pipe (73) is fixed to and connected to the air guide ring (71); the other end of the upper air suction pipe (73) is connected to the front end piston cavity of the spring telescopic rod (31); and a one-way valve is provided in the upper air suction pipe (73). A dust box (74) is fixed on the upper air intake pipe (73) and is connected to the upper air intake pipe (74). A lower air intake pipe (741) is fixed on the side wall of the dust box (74) and is connected to the lower air intake pipe (741). The other end of the lower air intake pipe (741) is connected to the rear end piston cavity of the spring telescopic rod (31). A dust filter (742) is fixedly connected to the communication port between the lower air intake pipe (741) and the upper air intake pipe (73) and the dust box (74). A one-way valve is provided in the lower air intake pipe (741).

2. A chemical fiber performance detection device according to claim 1, characterized in that: The winding portion comprises a drive shaft (5), the drive shaft (5) being rotatably connected between the mounting plates (3) on both sides, a strip gear (51) being fixedly connected to both sides of the drive shaft (5), a drive motor (52) being fixedly connected to one of the mounting plates (3), an output shaft of the drive motor (52) being fixedly connected to the end of the drive shaft (5), a guide rod (53) being fixedly connected between the mounting plates (3) on both sides, a reciprocating thread (531) being provided on both sides of the guide rod (53), a linkage gear (54) being threadedly sleeved on the reciprocating thread (531), the linkage gear (54) being meshingly connected to the strip gear (51), a positioning ring (41) being fixedly connected to both sides of the outer wall of the positioning plate (4), a driven gear (42) being fixedly connected to the middle of the outer wall of the positioning plate (4), the driven gear (42) being meshingly connected to the linkage gear (54).

3. A chemical fiber performance detection device according to claim 2, characterized in that: The guide rods (53) at both ends of the reciprocating thread (531) are fixedly connected to limit rings (532), and the threads of the reciprocating thread (531) at both ends are opposite.

4. A chemical fiber performance detection device according to claim 3, characterized in that: The clamping portion comprises a clamping groove (6), air push grooves (61) are provided on both sides of the clamping groove (6), a clamping plate (62) is slidably connected to the air push groove (61), a first spring (63) is fixedly connected between the side wall of the clamping plate (62) and the inner wall of the air push groove (61), the air push grooves (61) on both sides are connected via a ventilation groove (611), an air pump (64) is fixedly connected to the positioning ring (41), and an output end of the air pump (64) is connected to the ventilation groove (611).

5. A chemical fiber performance detection device according to claim 4, characterized in that: An air filling groove (75) is provided in the telescopic end of the spring telescopic rod (31), and both ends of the air filling groove (75) are respectively connected to the venting groove (611) and the rear end piston cavity of the spring telescopic rod (31), and a one-way valve is provided in the air filling groove (75).

6. A chemical fiber performance detection device according to claim 5, characterized in that: A blow box (8) is fixedly connected to the surface of the test bench (1), and air guide tubes (81) are fixed and connected to both sides of the blow box (8), the other end of the air guide tube (81) is connected to the rear end piston cavity of the spring telescopic rod (31), and a one-way valve is arranged in the air guide tube (81).

7. A chemical fiber performance detection device according to claim 3, characterized in that: A guide groove (9) is provided in the limiting ring (532) on the side close to the mounting plate (3), and a plurality of groups of guide holes (91) are provided at equal intervals on the side of the guide groove (9) facing the linkage gear (54). Both sides of the front piston cavity of the spring telescopic rod (31) are fixed and connected with guide pipes (92), the other end of the guide pipe (92) is connected to the inner cavity of the guide groove (9), and a one-way valve is provided in the guide pipe (92).

8. A method for detecting properties of chemical fibers, using a chemical fiber property detection device as claimed in any one of claims 1 to 7, characterized in that: Here are the steps: Step 1: fix the chemical fiber to be tested between the positioning plates (4) on both sides, and obtain the original rebound data of the chemical fiber through the detector (2); Step 2: Driving the positioning disk (4) to stretch and twist the chemical fiber to simulate the chemical fiber resilience detection action; Step 3: Collect and process the chemical fiber debris generated during stretching and torsion; Step 4: Obtaining the rebound data of the chemical fiber after stretching and twisting through the detector (2); Step 5: Compare the rebound data of chemical fibers before and after, and analyze the rebound performance of chemical fibers.

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