Device for detecting tensile strength of all-cotton gray fabric

Abstract

The invention provides an all-cotton gray fabric tensile strength detection device, and belongs to the field of fabric detection, the all-cotton gray fabric tensile strength detection device comprises a support frame, the upper end surface of the support frame is fixedly connected with two guide rails, the two sides of the two guide rails are fixedly connected with vertical plates, and the two vertical plates are fixedly connected to the upper end surface of the support frame. The cleaning plate can move in a reciprocating mode, cotton gray cloth can be repeatedly flattened, residual stress generated by folding is eliminated, the stress concentration fracture risk in the tensile test is reduced, the detection accuracy is improved, meanwhile, when the cleaning plate moves in a reciprocating mode, the cleaning plate shell vibrates up and down, flapping vibration of the cotton gray cloth is achieved, and the detection accuracy is improved. The non-flannelette can wipe the surface of the gray cotton cloth, remove impurities on the upper surface of the gray cotton cloth, prevent the impurities from forming a stress concentration point to cause overlarge deviation of test data, discharge the impurities on the lower side of the gray cotton cloth, and cooperate with a dust collection device to remove dust and the impurities to prevent the impurities from drifting away, so that the cleanliness of a processing environment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cloth detection, in particular to a device for detecting the tensile strength of pure cotton grey cloth. Background Art

[0002] Cotton greige fabric refers to natural cotton fabric used for printing and dyeing. The tensile strength of greige fabric is one of its important testing indicators. The tensile strength of greige fabric is the toughness of the fabric. Fabric with good toughness is not easy to tear and can have a longer service life. Therefore, it is necessary to test the tensile strength of greige fabric.

[0003] Application number CN202420492415.4 discloses a novel fabric tensile strength testing device, comprising a mounting plate with a fixing bracket disposed on the top side of the mounting plate. The fixing bracket has a groove within the fixing bracket, and a threaded rod is disposed within the groove. Fabric is placed on connecting rollers, and then clamped and fixed by a clamping plate driven by an electric telescopic rod, with the center of the fabric positioned precisely between the fixed rollers. During testing, a drive motor rotates the threaded rod, which, through a second movable block, drives the connecting plate, which in turn drives the fixed roller up and down, thereby performing tensile strength testing for both vertical and horizontal stretching of the fabric. A dual-axis motor rotates the bidirectional screw, which, through a first movable block, drives the connecting block, causing the connecting block to move the connecting roller in both directions, thereby performing left-right tensile strength testing for both vertical and horizontal stretching. This makes fabric testing more comprehensive and practical. However, after the fabric is clamped and fixed, wrinkles and impurities on the fabric surface may form residual stresses that can form local strain gradients, resulting in uneven load distribution during testing, thus affecting the accuracy of the test. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device for detecting the tensile strength of pure cotton grey cloth.

[0005] An embodiment of the present invention provides a device for detecting the tensile strength of pure cotton grey fabric, comprising:

[0006] The two guide rails are fixedly mounted on the support frame, and the two guide rails have vertical cams on both sides, and the two guide rails are fixedly connected to the upper end surface of the support frame. The guide rails are connected to the upper end surface of the support frame for sliding movement. The two guide rails are connected to the upper end surface of the support frame for sliding movement. The two guide rails are connected to the

[0007] Furthermore, the vibration assembly includes a lifting rod slidably connected in a fixed cylinder, the connecting rod is fixedly connected to the lifting rod, a first spring is fixedly connected to the inner wall of the fixed cylinder, the first spring is fixedly connected to the lifting rod, a vibration rod is fixedly connected to the lifting rod, a toggle ball is fixedly connected to the vibration rod, a plurality of toggle slots are provided on the support frame, the inner walls of the toggle slots are arc-shaped, and the toggle balls match the toggle slots.

[0008] Furthermore, the limiting assembly includes a mounting groove opened on the fixed plate, the cleaning plate slides in the mounting groove, the side wall of the fixed plate is fixedly connected to a connecting shell, the inner wall of the connecting shell is fixedly connected to a plurality of second springs, a movable plate is slidably connected in the connecting shell, the movable plate is fixedly connected to a plurality of second springs, a card block is fixedly connected to the connecting plate, the card block slides through the fixed plate, a card slot is opened on the cleaning plate, the card block and the card slot match, a pull rod slides through the connecting shell, one end of the pull rod is fixedly connected to the movable plate, the card block is wedge-shaped, and a pull ring is fixedly connected to the pull rod.

[0009] Furthermore, the clamping assembly includes a second cylinder fixedly connected to the fixed frame, the second cylinder slides through the fixed frame and is fixedly connected to an arc-shaped clamping block, the fixed frame is fixedly connected to a fixed roller, and a cotton grey cloth is provided between the two fixed rollers.

[0010] Furthermore, a plurality of universal wheels are fixedly mounted on the lower end surface of the support frame, a plurality of threaded rods are threaded through the support frame, a plurality of threaded rods are rotatably connected to a support plate, the lower end surface of the support plate is provided with anti-slip grooves, a plurality of threaded rods are fixedly connected to a knob, and a self-locking component is provided on the universal wheel.

[0011] Furthermore, a dust suction device is installed on the support frame, and the dust suction end of the dust suction device is connected to a connecting pipe, and the connecting pipe is fixedly connected to the two fixing frames, and a plurality of dust suction covers are provided on the connecting pipe.

[0012] Furthermore, an infrared transmitter is fixedly mounted on the upper end surface of the support frame, an infrared receiver is fixedly mounted on each of the two fixed frames, and a tension detection device is mounted on each of the two fixed rollers.

[0013] Furthermore, a protective shell is fixedly connected to the side wall of the support frame, and the protective shell matches the motor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. After the cotton grey cloth is fixed, the first cylinder drives the fixing frames away from each other to unfold the cotton grey cloth. Then the motor works to make the cleaning plate move back and forth, which can repeatedly flatten the cotton grey cloth, eliminate the residual stress caused by folding, reduce the risk of stress concentration fracture during tensile test, and improve the accuracy of detection.

[0016] 2. When the cleaning plate moves back and forth, under the limit of the first spring, the toggle ball moves back and forth continuously in the toggle groove, which can make the cleaning plate move up and down, realizing the beating vibration of the cotton grey cloth. The lint-free cloth can wipe the surface of the cotton grey cloth to remove impurities on the upper surface of the cotton grey cloth, so as to avoid the impurities forming stress concentration points that cause excessive deviation of the test data. At the same time, the impurities on the lower side of the cotton grey cloth can be discharged, and the dust and impurities can be removed in conjunction with the dust suction device to prevent the impurities from floating, thereby ensuring the cleanliness of the processing environment.

[0017] 3. The cleaning plate can be installed and removed by means of the card block and the card slot, which makes it easy for users to remove the cleaning plate to clean and maintain the lint-free cloth, ensuring the cleaning effect of the lint-free cloth.

[0018] 4. The universal wheels at the bottom of the device can be used to move the device, which improves its portability. At the same time, the threaded rods and support plates are used to limit and fix the device, which improves its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic structural perspective view of a device for detecting the tensile strength of pure cotton grey fabric according to an embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional top view of the structure of a tensile strength detection device for pure cotton grey fabric according to an embodiment of the present invention.

[0021] Figure 3 It is a three-dimensional side view of a device for detecting the tensile strength of pure cotton grey fabric according to an embodiment of the present invention.

[0022] Figure 4 This is a three-dimensional cross-sectional view of the fixing plate structure of a device for detecting the tensile strength of pure cotton grey fabrics according to an embodiment of the present invention.

[0023] Figure 5 This is a three-dimensional cross-sectional view of the fixed tube structure of a device for testing the tensile strength of pure cotton grey fabrics described in an embodiment of the present invention.

[0024] Figure 6 for Figure 2 A magnified view of the structure in the middle.

[0025] In the above drawings: 1 support frame, 2 guide rail, 3 vertical plate, 4 fixed frame, 5 first cylinder, 6 sliding groove, 7 reciprocating screw, 8 fixed cylinder, 9 connecting rod, 10 fixed plate, 11 cleaning plate, 12 motor, 13 lifting rod, 14 first spring, 15 vibration rod, 16 connecting shell, 17 second spring, 18 block, 19 second cylinder, 20 arc clamping block, 21 fixed roller, 22 universal wheel, 23 threaded rod, 24 support plate, 25 knob, 26 dust collection device, 27 connecting pipe, 28 dust collection hood, 29 infrared transmitter, 30 infrared receiver, 31 protective shell. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-6 As shown, the embodiment of the present invention provides a tensile strength testing device for pure cotton grey fabric, comprising:

[0028] The two cams 3 are connected to each other by a plurality of levers 16, 17 and 18 and are fixed on the upper end face of the support frame 1. The two cams 3 are connected to each other by a plurality of levers 16. The levers 3 are connected to each other by a plurality of levers 16. The levers 3 are connected to each other by a plurality of levers 18.

[0029] A fixed cylinder 8 is fixedly installed on the reciprocating screw 7, a vibration assembly is installed on the fixed cylinder 8, a connecting rod 9 is installed on the vibration assembly, a fixed plate 10 is fixedly connected to the connecting rod 9, a cleaning plate 11 is installed on the fixed plate 10, a lint-free cloth is provided on the cleaning plate 11, a limit assembly is installed on the fixed plate 10, a motor 12 is fixedly installed on the side wall of the support frame 1, the rotating end of the motor 12 is fixedly installed on the reciprocating screw 7, the vibration assembly includes a lifting rod 13 slidably connected to the fixed cylinder 8, and the connecting rod 9 is fixedly connected to the lifting rod 13. On the rod 13, the inner wall of the fixed cylinder 8 is fixedly connected to the first spring 14, the first spring 14 is fixedly connected to the lifting rod 13, the lifting rod 13 is fixedly connected to the vibration rod 15, the vibration rod 15 is fixedly connected to the toggle ball, the support frame 1 is provided with a plurality of toggle slots, the inner walls of the toggle slots are arranged in an arc shape, the toggle balls and the toggle slots match, the side wall of the support frame 1 is fixedly connected to the protective shell 31, the protective shell 31 and the motor 12 match, the protective shell 31 can protect the motor 12, and can prevent the motor 12 from being damaged by external interference;

[0030] The limiting assembly includes a mounting groove opened on the fixed plate 10, the cleaning plate 11 slides in the mounting groove, the side wall of the fixed plate 10 is fixedly connected to a connecting shell 16, the inner wall of the connecting shell 16 is fixedly connected to a plurality of second springs 17, the connecting shell 16 is slidingly connected to a movable plate, the movable plate is fixedly connected to a plurality of second springs 17, a clamping block 18 is fixedly connected to the connecting plate, the clamping block 18 slides through the fixed plate 10, a clamping groove is opened on the cleaning plate 11, the clamping block 18 matches the clamping groove, a pull rod slides through the connecting shell 16, one end of the pull rod is fixedly connected to the movable plate, the clamping block 18 is wedge-shaped, and a pull ring is fixedly connected to the pull rod, the clamping assembly includes a second cylinder 19 fixedly connected to the fixed frame 4, the second cylinder 19 slides through the fixed frame 4 and is fixedly connected to an arc-shaped clamping block 20, the fixed frame 4 is fixedly connected to a fixed roller 21, and a cotton grey cloth is commonly provided between the two fixed rollers 21.

[0031] The support frame 1 is provided with a plurality of universal wheels 22 fixedly mounted on the lower end surface of the support frame 1, and a plurality of threaded rods 23 are threadedly passed through the support frame 1, and the plurality of threaded rods 23 are rotatably connected to the support plate 24, and the lower end surface of the support plate 24 is provided with anti-slip grooves, and the plurality of threaded rods 23 are fixedly connected to the knobs 25, and the universal wheel 22 is provided with a self-locking member. A dust suction device 26 is installed on the support frame 1, and the dust suction end of the dust suction device 26 is connected with a connecting pipe 27, and the connecting pipe 27 is fixedly connected to the two fixed frames 4, and a plurality of dust suction covers 28 are provided on the connecting pipe 27. The dust suction device 26 is a prior art, mainly composed of a driving device, a centrifugal fan, a multi-stage filtering system and a dust collecting container. The core principle is that the driving device drives the fan blades to rotate at a high speed to form a negative pressure airflow in the closed cavity, and the external air carries dust into the suction pipe, and the dust particles are then intercepted by the multi-layer filter medium, and the clean air is discharged through the heat dissipation channel of the driving device, thereby realizing gas-solid separation and continuous adsorption cycle.

[0032] An infrared transmitter 29 is fixedly mounted on the upper end face of the support frame 1, and an infrared receiver 30 is fixedly mounted on both fixing frames 4. Both the infrared transmitter 29 and the infrared receiver 30 are prior art. The transmitter usually comprises an infrared LED light source, a driving circuit and an optical lens, and is used to transmit modulated infrared pulses or continuous wave signals; the receiver is composed of a photodiode, a signal amplification circuit and a digital processing module. By capturing the infrared signal reflected or blocked by the target object, the time difference or phase offset between emission and reception is calculated using the time-of-flight method or the phase comparison method, and the displacement value is converted into the speed of light, so as to detect the stretching amount of the cotton grey cloth. It will not be described in detail here. A tension detection device is installed on both fixed rollers 21. The tension detection device is prior art. Its working principle is similar to that of a force sensor. It can monitor the load change in real time, and the control system synchronously records the stress-strain curve of the stretching process, and finally calculates the tensile strength parameter. It will not be described in detail here.

[0033] The detailed working process of the present invention is as follows:

[0034] The universal wheel 22 at the bottom of the device is used to drive the device to move. When the device moves to the specified position, the user turns the knob 25, the threaded rod 23 rotates, and the support plate 24 contacts the ground, realizing the limit fixation of the device to prevent the device from moving, thereby improving the stability of the device. Then the user places the cotton grey cloth to be tested on the fixed roller 21, and then the second cylinder 19 starts to work, so that the arc clamping block 20 cooperates with the fixed roller 21 to fix the cotton grey cloth. Then the first cylinder 5 drives the fixing frame 4 to move away from each other to unfold the cotton grey cloth. Then the motor 12 works, and the reciprocating screw 7 in the sliding groove 6 starts to work, which can make the fixing cylinder 8 move back and forth, so that the cleaning plate 11 moves back and forth, which can repeatedly flatten the cotton grey cloth, eliminate the residual stress caused by folding, reduce the risk of stress concentration fracture during tensile test, and improve the accuracy of detection. When the cleaning plate 11 moves back and forth, under the limit of the first spring 14, the toggle ball continuously moves back and forth in the toggle groove, which can make the cleaning plate 11 move up and down, realizing The cotton grey cloth is now patted and vibrated, and the lint-free cloth can be used to wipe the surface of the cotton grey cloth to remove impurities on the upper surface of the cotton grey cloth to prevent impurities from forming stress concentration points that lead to excessive deviation in test data. At the same time, impurities on the lower side of the cotton grey cloth can be discharged, and the dust and impurities can be removed in conjunction with the dust collection device 26 to prevent impurities from floating, thereby ensuring the cleanliness of the processing environment. After the device has been used for a long time, the user can pull the pull ring to pull the card block 18 out of the card slot, and the cleaning plate 11 can be pulled out from the fixed plate 10. The lint-free cloth on the cleaning plate 11 can be cleaned and maintained to ensure the cleaning effect of the lint-free cloth. When installing the cleaning plate 11, you only need to insert the cleaning plate 11 into the installation slot. The side wall of the cleaning plate 11 will contact the block 18, the second spring 17 will contract, and the block 18 will temporarily contract. When the slot is facing the block 18, the second spring 17 will automatically reset, and the block 18 will move into the slot to achieve the limited fixation of the cleaning plate 11. The installation and disassembly of the cleaning plate 11 is portable, which improves the practicality of the device.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for detecting the tensile strength of pure cotton grey fabric, characterized in that: include: A support frame (1), wherein the upper end surface of the support frame (1) is fixedly connected to two guide rails (2), both sides of the two guide rails (2) are fixedly connected to vertical plates (3), the two vertical plates (3) are fixedly connected to the upper end surface of the support frame (1), the two guide rails (2) are slidably connected to two fixed frames (4), the side walls of the two vertical plates (3) are fixedly installed with first cylinders (5), the telescopic ends of the two first cylinders (5) are respectively fixedly connected to the two fixed frames (4), the two fixed frames (4) are installed with clamping components, and the support frame (1) is installed with a cleaning component, the cleaning component includes a cleaning component opened on the support frame ( 1), a reciprocating screw (7) is fixedly mounted on the inner wall of the sliding groove (6), a fixed cylinder (8) is fixedly mounted on the reciprocating screw (7), a vibration assembly is mounted on the fixed cylinder (8), a connecting rod (9) is mounted on the vibration assembly, a fixed plate (10) is fixedly connected to the connecting rod (9), a cleaning plate (11) is mounted on the fixing plate (10), a lint-free cloth is provided on the cleaning plate (11), a limiting assembly is mounted on the fixing plate (10), a motor (12) is fixedly mounted on the side wall of the support frame (1), and the rotating end of the motor (12) is fixedly mounted on the reciprocating screw (7).

2. A cotton grey fabric tensile strength testing device according to claim 1, characterized in that: in: The vibration assembly comprises a lifting rod (13) slidably connected in a fixed cylinder (8), the connecting rod (9) is fixedly connected to the lifting rod (13), the inner wall of the fixed cylinder (8) is fixedly connected to a first spring (14), the first spring (14) is fixedly connected to the lifting rod (13), the lifting rod (13) is fixedly connected to a vibration rod (15), the vibration rod (15) is fixedly connected to a toggle ball, a plurality of toggle grooves are provided on the support frame (1), the inner walls of the toggle grooves are arranged in an arc shape, and the toggle balls match the toggle grooves.

3. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: The limiting assembly includes a mounting groove opened on the fixed plate (10), the cleaning plate (11) slides in the mounting groove, the side wall of the fixed plate (10) is fixedly connected to a connecting shell (16), the inner wall of the connecting shell (16) is fixedly connected to a plurality of second springs (17), a movable plate is slidably connected in the connecting shell (16), the movable plate is fixedly connected to the plurality of second springs (17), a clamping block (18) is fixedly connected to the connecting plate, the clamping block (18) slides through the fixed plate (10), a clamping groove is opened on the cleaning plate (11), the clamping block (18) and the clamping groove match, a pull rod slides through the connecting shell (16), one end of the pull rod is fixedly connected to the movable plate, the clamping block (18) is wedge-shaped, and a pull ring is fixedly connected to the pull rod.

4. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: The clamping assembly comprises a second cylinder (19) fixedly connected to a fixed frame (4); the second cylinder (19) slides through the fixed frame (4) and is fixedly connected to an arc-shaped clamping block (20); a fixed roller (21) is fixedly connected to the fixed frame (4); and a cotton grey cloth is provided between the two fixed rollers (21).

5. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: The lower end surface of the support frame (1) is fixedly mounted with a plurality of universal wheels (22); a plurality of threaded rods (23) are threadedly passed through the support frame (1); a plurality of threaded rods (23) are rotatably connected to a support plate (24); a lower end surface of the support plate (24) is provided with anti-slip grooves; a plurality of threaded rods (23) are fixedly connected to a knob (25); and a self-locking component is provided on the universal wheel (22).

6. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: A dust collecting device (26) is installed on the support frame (1); a dust collecting end of the dust collecting device (26) is connected to a connecting pipe (27); the connecting pipe (27) is fixedly connected to the two fixing frames (4); and a plurality of dust collecting covers (28) are provided on the connecting pipe (27).

7. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: An infrared transmitter (29) is fixedly mounted on the upper end surface of the support frame (1), an infrared receiver (30) is fixedly mounted on each of the two fixed frames (4), and a tension detection device is mounted on each of the two fixed rollers (21).

8. The tensile strength testing device for pure cotton grey fabric according to claim 1, characterized in that: in: A protective shell (31) is fixedly connected to the side wall of the support frame (1), and the protective shell (31) matches the motor (12).

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