Comprehensive testing device for strength and elasticity of chemical fiber

Abstract

The invention discloses a chemical fiber strength and elasticity comprehensive testing device, and relates to the technical field of chemical fiber testing devices.The chemical fiber strength and elasticity comprehensive testing device comprises a testing mechanism, a protection mechanism comprises a concave plate, two sets of mounting bases, a wire guide block and a supporting rod, a reset spring is mounted at the top of the inner wall of the concave plate, and a moving block is slidably connected into the concave plate; a steel wire rope is movably sleeved with a round hole of the wire guide block, the top end of the supporting rod is movably sleeved with an annular electromagnet, and the outer surface of one rotating rod is fixedly sleeved with two arc-shaped blocks. According to the chemical fiber strength and elasticity comprehensive testing device, by arranging the protection mechanism, a transparent protection plate formed by a concave plate and a moving block can be automatically opened and closed, then the workload of testing personnel is reduced, the using effect of the chemical fiber strength and elasticity comprehensive testing device is improved, and meanwhile the using efficiency of the chemical fiber strength and elasticity comprehensive testing device is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical fiber testing devices, in particular to a chemical fiber strength and elasticity comprehensive testing device. Background Art

[0002] Chemical fiber is a general term for fibers made from natural or synthetic polymers through chemical or physical processing. Chemical fiber is mainly used in daily life and industrial production. In the production process of chemical fiber, due to the influence of raw materials, production technology and other factors, the quality of the chemical fiber produced will also vary. However, in order to ensure the stability of product quality, the produced chemical fiber needs to be tested for performance. Common chemical fiber performance tests include chemical fiber strength test and chemical fiber elasticity test.

[0003] In the existing technology, the existing chemical fiber strength and elasticity comprehensive testing device can realize the comprehensive strength and elasticity test of the prepared chemical fiber in actual use to ensure the stability of product quality, but it does not have the function of automatic protection. When the chemical fiber is subjected to strength test and breaks, the broken fiber will splash out at a high speed, and these splashed fibers will cause damage to the eyes, skin, etc. of the tester. However, most of the traditional protection is that the tester uses hand-tightened bolts to install the transparent protective plate on the test device, and then uses the installed transparent protective plate to protect the tester. When multiple chemical fiber strength and elasticity tests are required, manually disassembling and assembling the transparent protective plate back and forth will increase the workload of the tester, thereby reducing the work efficiency of the tester, which not only reduces the use effect of the chemical fiber strength and elasticity comprehensive testing device, but also reduces the use efficiency of the chemical fiber strength and elasticity comprehensive testing device.

[0004] Therefore, we propose a comprehensive testing device for strength and elasticity of chemical fibers in order to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a comprehensive testing device for chemical fiber strength and elasticity, so as to solve the problem that the existing comprehensive testing device for chemical fiber strength and elasticity does not have the function of automatic protection. When multiple chemical fiber strength and elasticity tests are required, manual disassembly and assembly of the transparent protective plate back and forth will increase the workload of the testers, thereby reducing the work efficiency of the testers, which not only reduces the use effect of the comprehensive testing device for chemical fiber strength and elasticity, but also reduces the use efficiency of the comprehensive testing device for chemical fiber strength and elasticity.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a synthetic fiber strength and elasticity comprehensive testing device, comprising a testing mechanism, wherein a protective mechanism is provided on the testing mechanism;

[0007] The protection mechanism includes a concave plate, two groups of mounting seats, a conductor block and a support rod, a reset spring is installed on the top of the inner wall of the concave plate, a moving block is slidably connected inside the concave plate, a rotating rod is rotatably connected between the insides of each group of mounting seats through a first bearing, a large gear is fixedly sleeved on the outer surface of one of the rotating rods, a winding drum and a small gear are fixedly sleeved on the outer surface of the other rotating rod, a wire rope is movably sleeved inside the circular hole of the conductor block, an annular electromagnet is movably sleeved on the top of the support rod, a bevel gear is fixedly sleeved on the outer wall of the annular electromagnet and the outer surface of one of the rotating rods, a limiting shell is installed on the top of the support rod, and two arc blocks are fixedly sleeved on the outer surface of one of the rotating rods.

[0008] Preferably, the top of the moving block and the bottom end of the return spring are installed, the teeth of the large gear and the teeth of the small gear are meshed, one end of the wire rope moves through the top of the inner wall of the concave plate, one end of the wire rope is installed on the inner wall of the wire taking-up groove of the winding drum, and the other end of the wire rope is fixed to the top of the moving block.

[0009] Preferably, the teeth of the two bevel gears are meshed, the bottom of the annular electromagnet is in contact with the upper side of the support rod, the bottom of the limit shell is in contact with the top of the annular electromagnet, the bottoms of the two arc blocks are fixed to the top of the concave plate, the bottom size of the concave plate is the same as the bottom size of the moving block, and the other end of the wire rope is movably sleeved inside the reset spring.

[0010] Preferably, the testing mechanism comprises a box body, a testing box is fixed on the top of the box body, the front surface of the testing box contacts the surface of the concave plate, the front surface of the testing box contacts the bottom surface of the moving block, and the two sets of the mounting seats and the wire blocks are both installed on the top of the testing box.

[0011] Preferably, a rectangular hole is opened on the inclined surface of the inner wall of the box, a controller is installed on the inclined surface of the inner wall of the box, the control end of the controller is movably sleeved inside the rectangular hole, two symmetrical motors are installed on the top of the inner wall of the box, and one side of the inner wall of the box and one side of the inner wall of the test box are opened with threading holes.

[0012] Preferably, the output ends of the two motors are equipped with single-head screws, the bottom ends of the two single-head screws are movable through the top of the box, two circular ring blocks are installed on the top of the inner wall of the test box, and the top ends of the two single-head screws are rotatably connected to the inside of the two circular ring blocks through second bearings.

[0013] Preferably, the bottom of the support rod is fixed to the top of one of the single-head screws, the bottom end of the support rod movably passes through the top of the test box, a movable plate is threadedly sleeved between the outer surfaces of the two single-head screws, and a fixing bolt movably passes through the top of the movable plate.

[0014] Preferably, a tension sensor is installed at the bottom of the movable plate through a fixing bolt, the bottom of the tension sensor is threadedly connected to a mounting block, the bottom of the mounting block and the top of the box are both installed with clamps, the outer surfaces of the two clamps are fixed with connecting plates, and a laser ranging sensor is installed on the top of one of the connecting plates.

[0015] Preferably, the bottom of the detection end of the laser ranging sensor and the bottom of one of the clamps are in the same horizontal plane, the bottom of the other connecting plate and the bottom of the other clamp are in the same horizontal plane, a driver is installed on one side of the inner wall of the box, and both motors are connected to the driver wires.

[0016] Preferably, the driver, tension sensor and laser ranging sensor are all connected to the controller wires, the annular electromagnet is connected to the controller wires, a plurality of partitions are evenly distributed and fixed inside the box, the bottom of one of the partitions is in contact with the bottom of the inner wall of the box, and a box plate is installed on the front surface of the box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention, by setting a protective mechanism, can make the transparent protective plate formed by the concave plate and the moving block automatically open and close, thereby reducing the workload of the tester, which not only improves the use effect of the chemical fiber strength and elasticity comprehensive testing device, but also reduces the use efficiency of the chemical fiber strength and elasticity comprehensive testing device. When it is necessary to open the transparent protective plate composed of the concave plate and the moving block, the cooperation of the controller and the annular electromagnet can be used to magnetically fix the support rod and the corresponding bevel gear together. When the testing mechanism allows one of the single-head screws to rotate, the cooperation of one of the rotating single-head screws, the support rod, the energized annular electromagnet, the two bevel gears, the two sets of mounting seats, the large gear and the small gear can be used to make the two rotating rods rotate simultaneously.

[0019] 2. The present invention utilizes two rotating rods that rotate simultaneously to realize the simultaneous rotation of the two arc blocks and the winding drum, and then utilizes the cooperation of the two rotating arc blocks to realize the rotation of the concave block, and utilizes the cooperation of the rotating winding drum, the wire rope and the conductor block to realize the movement of the moving block back to the inside of the concave plate, and can also make the reset spring be compressed. When the concave plate and the test box form an angle of 90 degrees, at this time, the two motors can be paused at the same time by utilizing the cooperation of the controller and the driver. When the fixture installed on the mounting block is reset to its original position, at this time, the concave plate and the moving block can be reset to their original positions at the same time by utilizing the cooperation of the reversed support rod, the previous linkage component and the rebound force of the reset spring, that is, the transparent protective plate composed of the concave plate and the moving block can be automatically opened and closed.

[0020] 3. The present invention can perform strength and elasticity tests on chemical fibers by setting up a testing mechanism, thereby ensuring the stability of product quality. When it is necessary to perform strength and elasticity tests on chemical fibers, the cooperation of a controller, a driver, two motors, two single-head screws, two annular blocks, a second bearing and a test box can be used to achieve stable upward movement of the movable plate, and then the cooperation of the movable plate, the fixing bolts, the tension sensor and the mounting block can be used to achieve stable upward movement of the fixture installed on the mounting block.

[0021] 4. In the present invention, when the clamp connected to the mounting block moves up to a suitable position, the two motors can be paused at the same time by utilizing the cooperation of the controller and the driver. Subsequently, the tested chemical fiber can be clamped and fixed by utilizing the cooperation of the two clamps. Subsequently, the two motors can be paused at the same time by utilizing the cooperation of the controller and the driver. Subsequently, the tension of the clamped chemical fiber can be measured by utilizing the controller, the tension sensor and the movable plate. When the chemical fiber is broken, the maximum tension value applied during the stretching of the chemical fiber until it breaks can be recorded by utilizing the cooperation of the controller.

[0022] 5. The present invention can calculate the tensile strength of the chemical fiber by using the cooperation of the controller, the cross-sectional area of ​​the chemical fiber and the measured data. When the new chemical fiber of the same batch is fixed between the two clamps, the initial length of the chemical fiber in the straightened state can be measured by using the cooperation of the controller, the laser ranging sensor and the two connecting plates. Subsequently, the length of the chemical fiber when it is stretched to a suitable length and not broken can be measured by using the cooperation of the controller, the driver, the two motors, the test box, the laser ranging sensor and the previous linkage components. Then, the elasticity of the measured chemical fiber can be calculated by using the cooperation of the controller, the measured length data, the cross-sectional area of ​​the chemical fiber and the recovered chemical fiber length data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A three-dimensional diagram of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0024] Figure 2 It is a partial three-dimensional diagram of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0025] Figure 3 It is a partial stereoscopic diagram of a synthetic fiber strength and elasticity comprehensive testing device according to the present invention from a side view;

[0026] Figure 4 It is a partial three-dimensional diagram of the protection mechanism of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0027] Figure 5 It is a partial three-dimensional diagram from a top view of a protective mechanism of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0028] Figure 6 A side-view stereoscopic diagram of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0029] Figure 7 It is a partially cutaway stereoscopic view of a side view mechanism of a synthetic fiber strength and elasticity comprehensive testing device of the present invention, viewed from an upward angle;

[0030] Figure 8 It is a partially cutaway stereoscopic view of a protective mechanism of a synthetic fiber strength and elasticity comprehensive testing device of the present invention;

[0031] Fig. 9 A comprehensive testing device for strength and elasticity of chemical fibers according to the present invention Figure 3 The enlarged stereogram at A in the middle;

[0032] Fig.10 A comprehensive testing device for strength and elasticity of chemical fibers according to the present invention Figure 8 The enlarged stereogram at B in the middle;

[0033] Fig.11 The present invention is a three-dimensional diagram of the installation block of a synthetic fiber strength and elasticity comprehensive testing device.

[0034] In the figure: 1, test mechanism; 101, box; 102, test box; 103, rectangular hole; 104, controller; 105, motor; 106, threading hole; 107, single-head screw; 108, ring block; 109, moving plate; 110, tension sensor; 111, fixing bolt; 112, mounting block; 113, fixture; 114, connecting plate; 115, laser distance sensor; 116, drive Actuator; 2. Protection mechanism; 201. Concave plate; 202. Return spring; 203. Moving block; 204. Mounting seat; 205. Turn bar; 206. Large gear; 207. Winding drum; 208. Wire block; 209. Wire rope; 210. Small gear; 211. Support rod; 212. Ring electromagnet; 213. Bevel gear; 214. Limiting shell; 215. Arc block; 3. Partition plate; 4. Box plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1-Figure 11 As shown, the present invention provides a technical solution: a synthetic fiber strength and elasticity comprehensive testing device, comprising a testing mechanism 1, on which a protective mechanism 2 is arranged;

[0037] The protection mechanism 2 includes a concave plate 201, two groups of mounting seats 204, a wire block 208 and a support rod 211. A return spring 202 is installed on the top of the inner wall of the concave plate 201. A moving block 203 is slidably connected inside the concave plate 201. A rotating rod 205 is rotatably connected between the insides of each group of mounting seats 204 through a first bearing. A large gear 206 is fixedly sleeved on the outer surface of one rotating rod 205, and a winding drum 207 and a small gear 210 are fixedly sleeved on the outer surface of the other rotating rod 205. A steel wire rope 209 is movably sleeved inside the round hole of the wire block 208. The top of the support rod 211 is movably sleeved with The annular electromagnet 212 has a bevel gear 213 fixedly sleeved on its outer wall and on the outer surface of one of the rotating rods 205. A limit housing 214 is installed on the top of the support rod 211. Two arc blocks 215 are fixedly sleeved on the outer surface of one of the rotating rods 205. The top of the moving block 203 is installed with the bottom end of the reset spring 202. The teeth of the large gear 206 are meshed with the teeth of the small gear 210. One end of the wire rope 209 movably passes through the top of the inner wall of the concave plate 201. One end of the wire rope 209 is installed with the inner wall of the wire-receiving groove of the winding drum 207. The other end of the wire rope 209 is fixed with the moving block 203. The top of the moving block 203 is fixed, the teeth of the two bevel gears 213 are meshed, the bottom of the annular electromagnet 212 is in contact with the upper side of the support rod 211, the bottom of the limit shell 214 is in contact with the top of the annular electromagnet 212, the bottoms of the two arc blocks 215 are fixed to the top of the concave plate 201, the bottom size of the concave plate 201 is the same as the bottom size of the moving block 203, the other end of the wire rope 209 is movably sleeved inside the reset spring 202, and the test mechanism 1 includes a box body 101, a test box 102 is fixed on the top of the box body 101, and the front surface of the test box 102 is in contact with the concave plate 201 The front surface of the test box 102 is in contact with the bottom surface of the moving block 203. The two sets of mounting seats 204 and the wire block 208 are all installed on the top of the test box 102. The bottom of the support rod 211 is fixed to the top of one of the single-head screws 107. The bottom end of the support rod 211 movably passes through the top of the test box 102. The controller 104 is installed on the inclined surface of the inner wall of the box body 101. The annular electromagnet 212 is connected to the controller 104 by wire. The bottom of the tension sensor 110 is threadedly connected to the mounting block 112. The bottom of the mounting block 112 and the top of the box body 101 are both installed with a clamp 113.

[0038] In this embodiment, when it is necessary to open the transparent protective plate composed of the concave plate 201 and the moving block 203, the controller 104 is used to energize the annular electromagnet 212. At this time, the energized annular electromagnet 212 allows the support rod 211 to be magnetically fixed to the corresponding bevel gear 213. When the test mechanism 1 allows one of the single-head screws 107 to rotate, the rotating single-head screw 107 will also drive the support rod 211 to rotate. Subsequently, the rotating support rod 211 will drive the corresponding bevel gear 213 with the cooperation of the energized annular electromagnet 212. 3 rotates, and then the rotating bevel gear 213 will drive one of the rotating rods 205 to rotate under the cooperation of the meshing bevel gear 213, the first bearing and one of the sets of mounting seats 204, and then the rotating one of the rotating rods 205 will make the two arc blocks 215 and the large gear 206 rotate at the same time, and then the rotating large gear 206 will drive the meshing small gear 210 to rotate, and then the rotating small gear 210 will drive the winding drum 207 to rotate under the cooperation of another set of mounting seats 204, another rotating rod 205 and the first bearing, when the two arc blocks 2 When the wire drum 207 and the wire drum 207 rotate simultaneously, the two rotating arc blocks 215 will drive the concave plate 201 to rotate, and the rotating wire drum 207 will reel the wire rope 209. The continuously reeled wire rope 209 will drive the moving block 203 to move inside the concave plate 201 with the cooperation of the wire block 208, and the moving block 203 moving back inside the concave plate 201 will compress the return spring 202 (while the concave plate 201 rotates, the moving block 203 will also move inside the concave plate 201). When the connected clamp 113 is moved to a suitable position (for the installation of the chemical fiber to be tested), the rotated concave plate 201 forms a 90-degree angle with the test box 102, and the moving block 203 is completely moved back to the inside of the concave plate 201. When the clamp 113 installed on the installation block 112 is reset to its original position, the reversed support rod 211 will also cooperate with the previous linkage component and the rebound force of the reset spring 202 to reset the concave plate 201 and the moving block 203 to their original positions at the same time, thereby realizing the automatic opening and closing of the transparent protective plate composed of the concave plate 201 and the moving block 203.

[0039] Embodiment 2: According to Figure 1-Figure 3 , Figure 6 , Figure 7 , Fig. 9 and Fig.11As shown, the test mechanism 1 includes a box 101, a test box 102 is fixed on the top of the box 101, a rectangular hole 103 is opened on the inner wall slope of the box 101, a controller 104 is installed on the inner wall slope of the box 101, and the control end of the controller 104 is movably sleeved inside the rectangular hole 103. Two symmetrical motors 105 are installed on the top of the inner wall of the box 101, and one side of the inner wall of the box 101 and one side of the inner wall of the test box 102 are opened with threading holes 106. The two motors 105 The output ends of the two single-head screws 107 are installed, and the bottom ends of the two single-head screws 107 are movably penetrated through the top of the box body 101. Two circular blocks 108 are installed on the top of the inner wall of the test box 102. The top ends of the two single-head screws 107 are rotatably connected to the inside of the two circular blocks 108 through the second bearing. A moving plate 109 is threadedly sleeved between the outer surfaces of the two single-head screws 107. A fixing bolt 111 is movably penetrated on the top of the moving plate 109. The bottom of the moving plate 109 is fixed by a fixing bolt 111. The fixed bolt 111 is installed with a tension sensor 110, and the bottom of the tension sensor 110 is threadedly connected with a mounting block 112. The bottom of the mounting block 112 and the top of the box body 101 are both installed with a clamp 113. The outer surfaces of the two clamps 113 are fixed with connecting plates 114. A laser distance sensor 115 is installed on the top of one of the connecting plates 114. The bottom of the detection end of the laser distance sensor 115 and the bottom of one of the clamps 113 are in the same horizontal plane. The other connecting plate 114 The bottom of the box 101 and the bottom of another fixture 113 are in the same horizontal plane, a driver 116 is installed on one side of the inner wall of the box body 101, and the two motors 105 are electrically connected to the driver 116. The driver 116, the tension sensor 110 and the laser ranging sensor 115 are all connected to the controller 104 with wires, and a plurality of partitions 3 are evenly distributed and fixed inside the box body 101, the bottom of one of the partitions 3 is in contact with the bottom of the inner wall of the box body 101, and a box plate 4 is installed on the front surface of the box body 101.

[0040] In this embodiment, when it is necessary to perform strength and elasticity tests on the chemical fiber, the two motors 105 are started at the same time by utilizing the cooperation of the controller 104 and the two drivers 116, and the output ends of the two motors 105 are rotated forward. At this time, each started motor 105 will drive the single-head screw 107 connected thereto to rotate, and the two rotating single-head screws 107 will drive the movable plate 109 to move upward stably with the cooperation of the corresponding annular block 108, the second bearing and the test box 102. After that, the moving movable plate 109 will utilize the cooperation of the fixing bolts 111, the tension sensor 110 and the mounting block 112 to drive the corresponding clamp 113 to move upward stably. When the clamp 113 connected to the mounting block 112 moves up to the closed position, the clamp 113 will move upward stably. When the two motors 105 are in a suitable position (for the installation of the chemical fiber to be tested), the cooperation of the controller 104 and the driver 116 (motor driver) can be used to pause the two motors 105 at the same time. Then, the two ends of the chemical fiber to be tested (the cross section is circular, and its cross-sectional area is measured and calculated in advance) are fixed with two clamps 113 respectively, and the chemical fiber after fixation is in a straightened state. Then, the cooperation of the controller 104 and the driver 116 is used to start the two motors 105 at the same time, and the output ends of the two motors 105 are reversed. At this time, the two started motors 105 will reset the clamps 113 installed on the mounting block 112 to their original positions (the clamped chemical fiber is loose at this time) with the cooperation of the previous linkage components and the test box 102. When the fixture 113 mounted on the mounting block 112 is reset to its original position, the cooperation of the controller 104 and the driver 116 is used to pause the two motors 105 again, and then the controller 104 is used to cut off the power to the annular electromagnet 212, and then the cooperation of the controller 104 and the driver 116 is used to start the two motors 105 at the same time, and the output ends of the two motors 105 are rotated forward, and then the above steps are repeated to move the fixture 113 mounted on the mounting block 112 to a suitable position again (the clamped chemical fiber is just in a straightened state), and then the cross-sectional area of ​​the tested chemical fiber is input into the controller 104. When the movable fixture 113 moves to a suitable position, the controller 104 is used to start the two motors 105 at the same time, and the output ends of the two motors 105 are rotated forward, and then the above steps are repeated to move the fixture 113 mounted on the mounting block 112 to a suitable position again (the clamped chemical fiber is just in a straightened state), and then the cross-sectional area of ​​the tested chemical fiber is input into the controller 104. The controller 104 and the driver 116 are used to simultaneously pause the two motors 105, and then the tension sensor 110 is started and zeroed. Then, the driver 116 is used to simultaneously start the two motors 105 again, and the output ends of the two motors 105 continue to rotate forward. At this time, the two started motors 105 will measure the tension of the clamped chemical fiber with the cooperation of the previous linkage components, the test box 102 and the started tension sensor 110. At the same time, the measured tension data will be transmitted to the controller 104 by the tension sensor 110 and displayed on the screen of the controller 104. When the chemical fiber breaks, the controller 104 will simultaneously pause the two motors 105 through the cooperation of the driver 116.At this time, the screen on the controller 104 will also record the data transmitted by the tension sensor 110 for the last time (that is, the maximum tension value applied during the stretching of the chemical fiber until it breaks). The controller 104 will then directly calculate the tensile strength of the chemical fiber using the measured data. At the same time, with the cooperation of the concave plate 201 and the moving block 203, it can prevent the flying fibers from causing damage to the eyes, skin, etc. of the tester when the fiber breaks. When the tensile strength test of the chemical fiber is completed, the above steps are repeated, the concave plate 201 is rotated, and then the chemical fiber of the same batch is replaced and fixed again. When the chemical fiber is clamped and fixed When the concave plate 201 is held and straightened, and the concave plate 201 is reset to its original position, the laser distance sensor 115 is started by the controller 104. The started laser distance sensor 115 will measure the initial length of the chemical fiber (i.e., the distance between the opposite sides of the two clamps 113, excluding the clamped and fixed part) with the cooperation of the two connecting plates 114. Then the laser distance sensor 115 will transmit the measured data to the controller 104, and display it on the screen of the controller 104, and record it at the same time. At this time, the tester can also input the cross-sectional area of ​​the tested chemical fiber into the controller 104, and then By using the cooperation of the controller 104 and the driver 116, the two motors 105 are started at the same time, and then the length of the stretched chemical fiber can be measured by using the cooperation of the two started motors 105, the previous linkage components, the test box 102, the two connecting plates 114 and the laser ranging sensor 115. At the same time, the measured chemical fiber length data will be transmitted to the controller 104 and displayed on the screen of the controller 104. When the chemical fiber is stretched to a suitable length and is not broken, the two motors 105 are paused at the same time by using the cooperation of the controller 104 and the driver 116. At this time, the screen of the controller 104 will record the stretched chemical fiber length. The length data after stretching (final length) is obtained, and then the controller 104 and the driver 116 are used to reset the fixture 113 installed on the mounting block 112 to its original position, and then the concave plate 201 is rotated again until the concave plate 201 and the test box 102 are at a 90-degree angle, and then the tested chemical fiber is removed from between the two fixtures 113, and then the recovered length of the chemical fiber (except the clamped part) is measured after a period of time, and then the recovered length of the chemical fiber is input into the controller 104. Finally, the controller 104 will use the measured data and the input data together to calculate the elasticity of the tested chemical fiber.

[0041] The effect and working principle of the whole mechanism are as follows: when it is necessary to perform strength and elasticity tests on chemical fibers, the threading hole 106 on the box body 101 and the prepared power cord are used to connect the controller 104 to the external power supply, and then the annular electromagnet 212 is energized by the controller 104. At this time, the energized annular electromagnet 212 will allow the support rod 211 to be magnetically fixed to the corresponding bevel gear 213. Then, the two motors 105 are started at the same time by the cooperation of the controller 104 and the two drivers 116, and the output ends of the two motors 105 are rotated forward. At this time, each started motor 105 will drive the single-head screw 107 connected thereto to rotate, and the two rotating single-head screws 107 will rotate on the corresponding circular ring blocks 108, The cooperation of the second bearing and the test box 102 drives the moving plate 109 to move upward stably. Then, the moving moving plate 109 will use the cooperation of the fixing bolt 111, the tension sensor 110 and the mounting block 112 to drive the corresponding fixture 113 to move upward stably. At the same time, one of the rotating single-head screws 107 will also drive the support rod 211 to rotate. Then, the rotating support rod 211 will drive the corresponding bevel gear 213 to rotate with the cooperation of the annular electromagnet 212 after power is turned on. Then, the rotating bevel gear 213 will drive one of the rotating rods 205 to rotate with the cooperation of the meshing bevel gear 213, the first bearing and one of the sets of mounting seats 204. Then, one of the rotating rotating rods 205 will make the two arc blocks 215 and the large gear 20 rotate. 6 rotates simultaneously, and then the rotating large gear 206 drives the meshing small gear 210 to rotate, and then the rotating small gear 210 drives the winding drum 207 to rotate under the cooperation of another set of mounting seats 204, another rotating rod 205 and the first bearing. When the two arc blocks 215 and the winding drum 207 rotate simultaneously, the two rotating arc blocks 215 drive the concave plate 201 to rotate, and the rotating winding drum 207 reels the wire rope 209 at the same time. The continuously reeled wire rope 209 drives the moving block 203 to move inside the concave plate 201 under the cooperation of the wire block 208, and the moving block 203 moving back inside the concave plate 201 causes the return spring 202 to be compressed (the concave plate 201 rotates at the same time). , the moving block 203 will also move toward the inside of the concave plate 201). When the fixture 113 connected to the mounting block 112 moves up to a suitable position (for the installation of the tested chemical fiber), the rotated concave plate 201 is at a 90-degree angle with the test box 102, and the moving block 203 is also completely moved back to the inside of the concave plate 201. At this time, the two motors 105 can be paused at the same time by using the cooperation of the controller 104 and the driver 116 (motor driver). Then, the two ends of the chemical fiber to be tested (the cross section is circular, and its cross-sectional area is measured and calculated in advance) are fixed with two fixtures 113 respectively, and the chemical fiber after fixation is in a straightened state. Then, the two motors 105 are started at the same time by using the cooperation of the controller 104 and the driver 116.And let the output ends of the two motors 105 reverse, and the two started motors 105 will, with the cooperation of the previous linkage components and the test box 102, reset the clamp 113 installed on the mounting block 112 to its original position (the clamped chemical fiber is in a relaxed state at this time), and the reversed support rod 211 will also, with the cooperation of the previous linkage components and the rebound force of the reset spring 202, reset the concave plate 201 and the moving block 203 at the same time, when the clamp 113 installed on the mounting block 112 is reset to its original position, the concave plate 201 and the moving block 203 are also reset to their original positions, and the cooperation of the controller 104 and the driver 116 is used to pause the two motors 105 at the same time again, and then the controller 104 is used to cut off the power to the annular electromagnet 212, and then By utilizing the cooperation of the controller 104 and the driver 116, the two motors 105 are started at the same time, and the output ends of the two motors 105 are allowed to rotate forward, and then the above-mentioned operation steps are repeated to move the fixture 113 installed on the mounting block 112 to a suitable position again (the clamped chemical fiber is just in a straightened state), and then the cross-sectional area of ​​the tested chemical fiber is input into the controller 104. When the movable fixture 113 moves to a suitable position, the cooperation of the controller 104 and the driver 116 is first utilized to pause the two motors 105 at the same time, and then the tension sensor 110 is started and zeroed, and then the cooperation of the driver 116 is utilized to start the two motors 105 at the same time again, and the output ends of the two motors 105 continue to rotate forward. At this time, the started The two motors 105 will measure the tension of the clamped chemical fiber with the cooperation of the previously linked components, the test box 102 and the activated tension sensor 110. At the same time, the measured tension data will be transmitted to the controller 104 by the tension sensor 110 and displayed on the screen of the controller 104. When the chemical fiber breaks, the controller 104 will pause the two motors 105 at the same time through the cooperation of the driver 116. At this time, the screen of the controller 104 will also record the data transmitted by the tension sensor 110 for the last time (that is, the maximum tension value applied during the process of the chemical fiber being stretched until it breaks). Then the controller 104 will directly calculate the tensile strength of the chemical fiber based on the measured data. At the same time, the concave plate 201 and the moving block 203 With the cooperation of, it can prevent the flying fibers from damaging the eyes, skin, etc. of the test personnel when the fiber breaks. When the tensile strength test of the chemical fiber is completed, the above operation steps are repeated, the concave plate 201 is rotated, and then the chemical fiber of the same batch is replaced and fixed again. When the chemical fiber is clamped and fixed and is in a straightened state, and the concave plate 201 is reset to its original position, the controller 104 is used to start the laser distance sensor 115. At this time, the started laser distance sensor 115 will measure the initial length of the chemical fiber (that is, the distance between the opposite sides of the two clamps 113, excluding the clamped and fixed part) with the cooperation of the two connecting plates 114, and then the laser distance sensor 115 will transmit the measured data to the controller 104.The tester can also input the cross-sectional area of ​​the tested chemical fiber into the controller 104, and then use the cooperation of the controller 104 and the driver 116 to start the two motors 105 at the same time. Then, use the cooperation of the two started motors 105, the previous linkage components, the test box 102, the two connecting plates 114 and the laser ranging sensor 115 to measure the length of the stretched chemical fiber. At the same time, the measured chemical fiber length data will be transmitted to the controller 104 and displayed on the screen of the controller 104. When the chemical fiber is stretched to a suitable length and is not broken, the controller 104 and the driver 116 are used to cooperate with each other. The two motors 105 are paused at this time. At this time, the screen of the controller 104 will record the length data (final length) of the stretched chemical fiber. Then, the controller 104 and the driver 116 are used to reset the fixture 113 installed on the mounting block 112 to its original position. Then, the concave plate 201 is rotated again until the concave plate 201 and the test box 102 are at an angle of 90 degrees. Then, the tested chemical fiber is removed from between the two fixtures 113. Then, after a period of time, the recovered chemical fiber length (except the clamped part) is measured. Then, the recovered chemical fiber length data is input into the controller 104. Finally, the controller 104 uses the measured data and the input data together to calculate the elasticity of the tested chemical fiber.

[0042] Among them, the first bearing and the second bearing are both commonly used parts in reality.

[0043] Among them, chemical fiber strength (tensile strength) can be used:

[0044] σ is the tensile strength, F max is the maximum tensile force applied during the stretching of the chemical fiber until it breaks, and A0 is the original cross-sectional area of ​​the chemical fiber before stretching;

[0045] A0 is the original cross-sectional area of ​​the chemical fiber before stretching, and d is the diameter.

[0046] Among them, the elasticity of chemical fibers can be reflected by elongation and recovery rate. The elongation can be expressed by:

[0047] δ is the elongation, L1 is the length of the chemical fiber after stretching (excluding the clamping part), and L0 is the initial length of the chemical fiber (excluding the clamping part);

[0048] Response rates available:

[0049] ρ is the recovery rate, L1 is the length of the chemical fiber after stretching (excluding the clamping part), L2 is the length of the chemical fiber after recovery (excluding the clamping part), and L0 is the initial length of the chemical fiber (excluding the clamping part).

[0050] The clamp 113 is composed of a clamp seat, a hand screw, a clamping block and an anti-slip pad, and is mainly used for clamping chemical fibers.

[0051] Among them, the controller 104 is (PLC controller), the motor 105, the tension sensor 110, the laser ranging sensor 115, the driver 116, the concave plate 201 (made of transparent material), the moving block 203 (made of transparent material) and the annular electromagnet 212 are all existing technologies, and their models can be selected according to actual conditions, and no excessive explanation is given here.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A comprehensive testing device for strength and elasticity of chemical fibers, characterized in that: It comprises a testing mechanism (1), wherein a protection mechanism (2) is arranged on the testing mechanism (1); The protection mechanism (2) comprises a concave plate (201), two groups of mounting seats (204), a wire block (208) and a support rod (211); a return spring (202) is installed on the top of the inner wall of the concave plate (201); a moving block (203) is slidably connected inside the concave plate (201); a rotating rod (205) is rotatably connected between the insides of each group of mounting seats (204) via a first bearing; a large gear (206) is fixedly sleeved on the outer surface of one of the rotating rods (205); and a large gear (206) is fixedly sleeved on the outer surface of the other rotating rod (205). A winding drum (207) and a pinion (210) are fixedly sleeved on the surface, a steel wire rope (209) is movably sleeved inside the circular hole of the conductor block (208), an annular electromagnet (212) is movably sleeved on the top of the support rod (211), a bevel gear (213) is fixedly sleeved on the outer wall of the annular electromagnet (212) and the outer surface of one of the rotating rods (205), a limiting shell (214) is installed on the top of the support rod (211), and two arc blocks (215) are fixedly sleeved on the outer surface of one of the rotating rods (205).

2. The synthetic fiber strength and elasticity comprehensive testing device according to claim 1, characterized in that: The top of the moving block (203) is mounted on the bottom of the return spring (202), the teeth of the large gear (206) are meshed with the teeth of the small gear (210), one end of the steel wire rope (209) movably passes through the top of the inner wall of the concave plate (201), one end of the steel wire rope (209) is mounted on the inner wall of the wire taking-up groove of the winding drum (207), and the other end of the steel wire rope (209) is fixed to the top of the moving block (203).

3. The synthetic fiber strength and elasticity comprehensive testing device according to claim 1, characterized in that: The teeth of the two bevel gears (213) are meshed with each other, the bottom of the annular electromagnet (212) is in contact with the upper side of the support rod (211), the bottom of the limit shell (214) is in contact with the top of the annular electromagnet (212), the bottoms of the two arc blocks (215) are fixed to the top of the concave plate (201), the bottom size of the concave plate (201) is the same as the bottom size of the moving block (203), and the other end of the wire rope (209) is movably sleeved inside the reset spring (202).

4. The synthetic fiber strength and elasticity comprehensive testing device according to claim 1, characterized in that: The testing mechanism (1) comprises a box body (101), a testing box (102) is fixed on the top of the box body (101), a front surface of the testing box (102) contacts the surface of the concave plate (201), a front surface of the testing box (102) contacts the bottom surface of the moving block (203), and two sets of the mounting seats (204) and the lead blocks (208) are both mounted on the top of the testing box (102).

5. The synthetic fiber strength and elasticity comprehensive testing device according to claim 4, characterized in that: A rectangular hole (103) is provided on the inclined surface of the inner wall of the box (101); a controller (104) is installed on the inclined surface of the inner wall of the box (101); a control end of the controller (104) is movably sleeved inside the rectangular hole (103); two symmetrical motors (105) are installed on the top of the inner wall of the box (101); and threading holes (106) are provided on one side of the inner wall of the box (101) and one side of the inner wall of the test box (102).

6. The synthetic fiber strength and elasticity comprehensive testing device according to claim 5, characterized in that: The output ends of the two motors (105) are both equipped with single-head screws (107), the bottom ends of the two single-head screws (107) are both movable and penetrate the top of the box body (101), and two circular ring blocks (108) are installed on the top of the inner wall of the test box (102), and the top ends of the two single-head screws (107) are both rotatably connected to the inside of the two circular ring blocks (108) through second bearings.

7. The synthetic fiber strength and elasticity comprehensive testing device according to claim 6, characterized in that: The bottom of the support rod (211) is fixed to the top of one of the single-head screw rods (107), and the bottom end of the support rod (211) movably penetrates the top of the test box (102). A movable plate (109) is threadedly sleeved between the outer surfaces of the two single-head screw rods (107), and a fixing bolt (111) movably penetrates the top of the movable plate (109).

8. The synthetic fiber strength and elasticity comprehensive testing device according to claim 7, characterized in that: A tension sensor (110) is installed at the bottom of the movable plate (109) via a fixing bolt (111); a mounting block (112) is threadedly connected to the bottom of the tension sensor (110); a clamp (113) is installed at the bottom of the mounting block (112) and the top of the box (101); connecting plates (114) are fixed to the outer surfaces of the two clamps (113); a laser distance sensor (115) is installed at the top of one of the connecting plates (114).

9. The synthetic fiber strength and elasticity comprehensive testing device according to claim 8, characterized in that: The bottom of the detection end of the laser distance measuring sensor (115) and the bottom of one of the clamps (113) are in the same horizontal plane, the bottom of the other connecting plate (114) and the bottom of the other clamp (113) are in the same horizontal plane, a driver (116) is installed on one side of the inner wall of the box (101), and the two motors (105) are connected to the driver (116) by wires.

10. The synthetic fiber strength and elasticity comprehensive testing device according to claim 9, characterized in that: The driver (116), the tension sensor (110) and the laser distance sensor (115) are all connected to the controller (104) by wires, the annular electromagnet (212) is connected to the controller (104) by wires, a plurality of partitions (3) are evenly distributed and fixed inside the box (101), the bottom of one of the partitions (3) is in contact with the bottom of the inner wall of the box (101), and a box plate (4) is installed on the front surface of the box (101).

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