CN119334768A - A kind of color spinning yarn tensile property detection device and method - Google Patents
A kind of color spinning yarn tensile property detection device and method Download PDFInfo
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- CN119334768A CN119334768A CN202411868201.3A CN202411868201A CN119334768A CN 119334768 A CN119334768 A CN 119334768A CN 202411868201 A CN202411868201 A CN 202411868201A CN 119334768 A CN119334768 A CN 119334768A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention relates to the technical field of yarn performance detection, and in particular provides a device and a method for detecting the tensile property of a spun-dyed yarn. According to the yarn-dyed yarn tensile property detection device, the abutting test mechanism, the end fixing mechanism and the horizontal tensile test mechanism are matched, so that the yarn is subjected to bidirectional tensile test under abutting pressure in different directions and under abutting stretching in different positions and different depths, the stress condition of the yarn from multiple directions in the actual use process is simulated, the tensile property of the yarn under partial stress in different positions is detected, the tensile property of the yarn is comprehensively and comprehensively evaluated, the accuracy and the authenticity of yarn tensile property detection are improved, and the practicability of yarn tensile property detection is improved.
Description
Technical Field
The invention relates to the technical field of yarn performance detection, and particularly provides a device and a method for detecting the tensile property of a spun-dyed yarn.
Background
The colored spun yarn is a special textile material and is characterized in that fibers with different colors are mixed and spun, and finally the formed yarn presents a unique color mixing effect.
The tensile property test is required to be carried out in the production and manufacturing process of the spun-dyed yarn, the tensile property test can evaluate the breaking strength of the yarn, namely the maximum load which the yarn can bear under the action of stress, which is important to ensure that the yarn cannot be broken easily in the processing and using processes, and meanwhile, the elastic recovery capability of the yarn, namely whether the yarn can recover to the original length after being stretched, can be known through the tensile property test, which is particularly important to products (such as knitted clothes) with good elasticity.
However, the tensile property of the existing yarn is only detected in a linear tensile direction or an up-down elastic mode, in practical application, the yarn may be subjected to forces from multiple directions, the performance of the yarn in multiple directions cannot be comprehensively evaluated due to the fact that a single-direction test result may not completely reflect the performance of the yarn in a complex stress environment, the linear tensile test only can evaluate the overall performance of the yarn, local non-uniformity is difficult to find, and the up-down elastic test can partially solve the problem, but the test point is single, and the tensile property of the yarn is still difficult to truly detect.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a device and a method for detecting tensile properties of spun-dyed yarns, so as to solve the technical problems in the related art.
In order to achieve the aim, the embodiment of the application provides a technical scheme that the device for detecting the tensile property of the spun-dyed yarn comprises two supporting tables, wherein the two supporting tables are of 匚 structures and are opposite in opening, and an end mechanism for fixing the end of the yarn and a horizontal tensile testing mechanism for carrying out tensile test on the yarn by a driving end mechanism are commonly arranged at the tops of the two supporting tables.
The fixing seats are mounted on the rear side walls of the two supporting tables together, and the pressing test mechanisms are mounted on the fixing seats.
The end fixing mechanism comprises two support brackets, a pre-limiting group for pre-limiting the end part of the yarn is arranged at the top of each support bracket, a zipper group for locking the pre-limiting group is arranged between the two support platforms, a 匚 -shaped seat is horizontally and slidingly connected to the top of one support platform, one support bracket is horizontally and slidingly connected between two opposite sections of the 匚 -shaped seat, the other support bracket is slidingly connected to the other support platform, and a deformation size display group is arranged between the 匚 -shaped seat and the support bracket connected to the 匚 -shaped seat.
In one possible implementation manner, the horizontal tensile testing mechanism comprises a tensile driving source (such as a cylinder and an electric telescopic rod) arranged at the top of the supporting table through a base, wherein L-shaped seats are respectively arranged at the 匚 -shaped seats and the end parts of the support brackets which are connected to the supporting table in a sliding manner, and the L-shaped seats are connected with the corresponding tensile driving sources.
In one possible implementation mode, the pre-limiting group comprises lifting rods which are connected on the support bracket, slide up and down and are uniformly distributed along the length direction of the lifting rods, pressing sheets are arranged at the tops of the lifting rods, ear plates and limiting sheets are sequentially arranged at the bottoms of the lifting rods after the bottom of the lifting rods slide to penetrate through the support bracket, extension springs sleeved on the lifting rods are arranged between the ear plates and the bottoms of the support bracket, and the ends of yarns are wound on the lifting rods and located between the support bracket and the pressing sheets.
In one possible implementation manner, the zipper set comprises two lifting seats which are connected together between two supporting tables, slide up and down and are distributed along the width direction of the two lifting seats, a plurality of lifting rods connected with the same supporting bracket are sleeved with pull plates in a sliding mode, the two pull plates are connected between the two lifting seats in a sliding mode, and the pull plates are located between the lug plates and the limiting plates.
The pressing testing mechanism comprises a connecting frame fixedly connected to the fixing base, a connecting plate is connected to the top of the connecting frame in a horizontal sliding mode, a sliding driving source (such as an electric sliding block) sliding along the length direction of the connecting frame is installed on the connecting plate, an inverted T-shaped frame sliding up and down is connected to the connecting plate, a connecting shaft is installed at the lower end of a horizontal section of the inverted T-shaped frame in a rotating mode, a height adjusting group is installed at the top of the inverted T-shaped frame, a reset spring sleeved on the vertical section of the inverted T-shaped frame is installed between the height adjusting group and the connecting plate, and a pressing driving piece pressing down the inverted T-shaped frame in a sliding mode is installed at the top of the fixing base.
In one possible implementation mode, the connecting shaft is provided with limiting abutting rollers which are uniformly distributed along the axial direction of the connecting shaft in a rotating sleeve mode, the limiting abutting rollers are I-shaped wheels, the horizontal sections of the limiting abutting rollers are located above the yarns, and the yarns are located between the two vertical sections of the limiting abutting rollers.
In one possible implementation mode, the height adjusting group comprises a supplement seat arranged at the top of the vertical section of the inverted T-shaped frame, a reset spring is connected with the bottom of the supplement seat, a storage groove extending to the vertical section of the inverted T-shaped frame is formed in the center of the top of the supplement seat, a support frame is connected in a sliding mode in the storage groove, the support frame is of an inverted U-shaped structure, limit grooves symmetrically arranged along the length direction of the support frame are formed in the top of the supplement seat, a sliding block is connected in the limit grooves in a sliding mode, a swinging rod is hinged between the sliding block and the support frame, a bidirectional screw rod matched with the sliding block in a threaded mode is connected between the two limit grooves in a rotating mode, and the bidirectional screw rod penetrates between the two vertical sections of the support frame.
In one possible implementation mode, the deformation size display set comprises a 匚 -shaped seat, a displacement locking assembly and uniformly arranged drawing springs, wherein the displacement locking assembly is arranged between the 匚 -shaped seat and a support bracket connected with the support seat, the top of one horizontal section of the 匚 -shaped seat parallel to the yarns is provided with a size scale, and a pointer matched with the size scale is arranged on the support bracket.
In one possible implementation manner, the displacement locking assembly comprises a guide groove formed in the middle section of the 匚 -shaped seat, a guide plate is installed on a support bracket connected to the 匚 -shaped seat, the guide plate penetrates through the guide groove in a sliding mode, a locking screw is installed at the top of the 匚 -shaped seat, a locking plate is installed in a rotating mode after penetrating through the guide groove, the locking screw is connected with the 匚 -shaped seat in a threaded mode, and the locking plate is connected with the guide groove in a sliding mode up and down.
In one possible implementation, a rubber gasket is mounted at the bottom of the lock plate, and is used for increasing the friction force between the lock plate and the guide plate.
S1, sampling and fixing, selecting a plurality of yarns with a certain length, and fixing two ends of the yarns through an end fixing mechanism.
S2, tensile testing, namely performing biaxial tension testing on the yarns under the action of pressing deformation at different positions through the cooperation of the end fixing mechanism, the horizontal tensile testing mechanism and the pressing testing mechanism until each time of biaxial tension fracture of the yarns, and determining the tensile strength of the yarns through maximum tension load analysis before multiple times of yarn fracture.
S3, elasticity testing, namely fixing two ends of the yarn and enabling the yarn to be in a straightened state through the end fixing mechanism and the pressing testing mechanism, then pressing the yarn downwards at different positions and different depths through the pressing testing mechanism, generating deformation of different positions and different tensile forces on the yarn, after testing, matching the support bracket and the deformation size display set on the support bracket through the 匚 -shaped seat, observing whether the yarn can be restored to the original length after pressing and stretching, and judging the elasticity restoration capability of the yarn.
And S4, obtaining a result, namely evaluating the tensile strength capability and elastic recovery capability of the yarn to obtain the tensile property of the yarn, and if the evaluated tensile property of the yarn is within an allowable range, indicating that the tensile property of the yarn is qualified, otherwise, failing.
The tension performance detection device for the spun-dyed yarns has the advantages that 1. The tension performance detection device for the spun-dyed yarns is designed to realize the bidirectional tension test of yarns under the pressure of different positions and the test under the pressure of different positions and different depths in a tension state by matching the pressure test mechanism, the end mechanism and the horizontal tension test mechanism, simulate the stress conditions of the yarns from multiple directions in the actual use process, detect the tension performance of the yarns when the yarns are locally stressed at different positions, comprehensively evaluate the tension performance of the yarns, further improve the accuracy and the authenticity of the tension performance detection of the yarns, and improve the practicability of the tension performance detection of the yarns.
2. According to the invention, the end mechanism is matched with the pressing test mechanism, the pressing test mechanism presses the yarns at different positions and different depths, and the elastic recovery capability of the yarns is detected, so that the tensile elastic performance result of the yarns is more visual, and the local non-uniformity of the yarns can be accurately found.
3. When the yarn is detected, the two ends of the yarn are pre-limited through the pre-limiting group, and then the two ends of the yarn are locked through the zipper group, so that the convenience of fixing the ends of the yarn in detection is improved, and the convenience of detecting the tensile property of the yarn is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a tensile property testing apparatus according to the present invention.
Fig. 2 is an enlarged schematic view of a portion of fig. 1 of the present invention.
Fig. 3 is an enlarged schematic view of a portion of the present invention at B of fig. 1.
Fig. 4 is a schematic perspective view of the pressing test mechanism of the present invention.
Fig. 5 is a front cross-sectional view of fig. 1 of the present invention.
Fig. 6 is an enlarged schematic view of a portion of fig. 5 at C in accordance with the present invention.
FIG. 7 is a schematic illustration of a bi-directional tensile test of a yarn of the present invention under compression at different locations.
FIG. 8 is a schematic illustration of the elastic performance test of the yarn of the present invention under pressure at different locations while the ends are stationary after straightening.
The device comprises a supporting table, a2, an end mechanism, a 20, a supporting bracket, a 21, a pre-limiting group, a 210, a lifting rod, a 211, a pressing sheet, a 212, an ear plate, a 213, a limiting sheet, a 214, a tension spring, a 22, a zipper group, a 220, a lifting seat, a 221, a pulling plate, a 23, a 匚 -shaped seat, a 24, a deformation dimension display group, a 240, a retraction spring, a 241, a dimension scale, 242, a pointer, a 250, a guide groove, a 251, a guide plate, a 252, a locking screw, a 253, a pressing locking plate, a 254, a rubber gasket, a 3, a horizontal tension testing mechanism, a 30, an L-shaped seat, a 4, a fixing seat, a 5, a pressing testing mechanism, a 50, a connecting frame, a 51, a connecting plate, a 52, an inverted T-shaped frame, a 53, a connecting shaft, a 530, a limiting pressing roller, a 54, a height adjusting group, a 540, a supplement seat, a 541, a storage groove, a 542, a pressing frame, a 543, a limiting groove, a 544, a sliding block, a 545, a swinging rod, a 546, a bidirectional screw, a 55, a reset spring, a 56, a pressing driving piece, and a 6, a yarn.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a yarn drawing performance detection device for a spun-dyed yarn comprises two support tables 1, wherein the two support tables 1 are of 匚 type structures and are opposite in opening, and an end fixing mechanism 2 for fixing the end of a yarn 6 and a horizontal drawing test mechanism 3 for carrying out drawing test on the yarn 6 by the driving end fixing mechanism 2 are commonly installed at the tops of the two support tables 1.
Referring to fig. 1, a fixed seat 4 is commonly mounted on the rear side walls of two support tables 1, and a pressing test mechanism 5 is mounted on the fixed seat 4.
Referring to fig. 1 and 2, the end mechanism 2 includes two support brackets 20, a pre-limiting group 21 for pre-limiting the end of the yarn 6 is mounted on the top of the support brackets 20, a zipper group 22 for locking the pre-limiting group 21 is mounted between the two support platforms 1, a 匚 -shaped seat 23 is horizontally and slidably connected to the top of one support platform 1, one support bracket 20 is horizontally and slidably connected between two opposite sections of the 匚 -shaped seat 23, the other support bracket 20 is slidably connected to the other support platform 1, and a deformation size display group 24 is mounted between the 匚 -shaped seat 23 and the support bracket 20 connected thereto.
Referring to fig. 1 and 7, when the tensile strength of the yarn 6 is detected, two ends of the yarn 6 are fixed by the end mechanism 2, and meanwhile, the yarn 6 is pressed down by the pressing test mechanism 5, so that the yarn 6 is in a pressing inclined shape in a certain direction, and then, the two ends of the yarn 6 are applied with tension by the driving end mechanism 2 of the horizontal stretching test mechanism 3, and the two-way stretching test is performed on the yarn 6 until the yarn 6 breaks, so that the maximum tension load before the yarn 6 breaks in a pressing direction is measured.
In order to obtain a more reliable detection result, the accuracy of the detection result is ensured, the yarn 6 can be pressed at different positions by adjusting the position of the pressing test mechanism 5, and the biaxial tension test is performed on the yarn 6 until the yarn 6 breaks, so that the pressing inclination of different positions and the stress condition of biaxial tension of the yarn 6 in the use process are simulated, the tensile performance of the yarn 6 is obtained according to the analysis of multiple tensile performance test results, and the comprehensiveness of the detection of the tensile performance of the yarn 6 is improved.
Referring to fig. 1, the horizontal tensile testing mechanism 3 includes a tensile driving source (such as a cylinder, an electric telescopic rod, etc.) installed on the top of the supporting table 1 through a base, wherein the end portions of the 匚 -shaped seat 23 and the support bracket 20 slidably connected to the supporting table 1 are both installed with an L-shaped seat 30, the L-shaped seat 30 is connected with a corresponding tensile driving source, the corresponding L-shaped seat 30 and the support bracket 20, 匚 -shaped seat 23 connected to the L-shaped seat 30 are driven by the tensile driving source to move, so that tension is applied to two ends of the yarn 6, the yarn 6 is tested for two-way tensile testing under the action of compression deformation at different positions until the yarn 6 breaks, in addition, the initial tensile time and the time at the moment of breaking of a plurality of yarns 6 between two end mechanisms 2 are recorded by matching with an existing microscope camera or a high-speed camera, and then the average tensile strength of the yarn 6 is obtained under the action of compression deformation at the same position by matching with the tensile driving source by the imaging display of the existing microscope camera or the high-speed camera.
Referring to fig. 1 and 3, the pre-limiting group 21 includes a lifting rod 210 connected to the support bracket 20, sliding up and down, and uniformly distributed along the length direction thereof, a pressing piece 211 is installed at the top of the lifting rod 210, an ear plate 212 and a limiting piece 213 are sequentially installed at the bottom of the lifting rod 210 after the bottom of the lifting rod 210 slides through the support bracket 20, a tension spring 214 sleeved on the lifting rod 210 is installed between the ear plate 212 and the bottom of the support bracket 20, and the end of the yarn 6 is wound on the lifting rod 210 and located between the support bracket 20 and the pressing piece 211.
When the end of the yarn 6 is fixed, the lifting rod 210 is pushed to drive the pressing piece 211 to move upwards, then the yarn 6 is wound on the lifting rod 210, then the lifting rod 210 is loosened, the lifting rod 210 moves downwards under the action of the elastic force of the tension spring 214 until the pressing piece 211 presses the yarn 6 on the support bracket 20, and therefore preliminary pre-fixing of the end of the yarn 6 is achieved, and the two ends of the yarn 6 are uniformly pressed and fixed.
Referring to fig. 1, 3, 5 and 6, the zipper set 22 includes two lifting seats 220 that are connected together between the two support tables 1, slide up and down, and are arranged along the width direction of the two lifting seats, a pull plate 221 is sleeved on the lifting rods 210 connected to the same support bracket 20 in a sliding manner, the two pull plates 221 are horizontally connected between the two lifting seats 220 in a sliding manner, and the pull plate 221 is located between the ear plate 212 and the limiting plate 213.
After the two ends of the yarns 6 are pre-fixed, the lifting seat 220 is driven to move downwards by an external driving source (such as an electric sliding block), the lifting seat 220 drives the pulling plate 221 to move downwards, when the pulling plate 221 is abutted against the limiting piece 213, the pulling plate 221 abuts against the limiting piece 213 to drive the lifting rod 210 and the pressing piece 211 to move downwards, so that the pressing piece 211 tightly abuts against the ends of the yarns 6 on the support bracket 20, synchronous pressing and fixing of the two ends of the yarns 6 is realized, convenience in fixing the ends of the yarns 6 is improved, and further the efficiency in detecting the tensile property of the yarns 6 is improved.
Referring to fig. 1, fig. 4, fig. 5 and fig. 8, the pressing test mechanism 5 includes a connecting frame 50 fixedly connected to the fixing base 4, a connecting plate 51 is horizontally slidably connected to the top of the connecting frame 50, a sliding driving source (such as an electric slider) sliding along the length direction of the connecting frame 50 is installed on the connecting plate 51, an inverted T-shaped frame 52 sliding up and down is connected to the connecting plate 51, a connecting shaft 53 is rotatably installed at the lower end of the horizontal section of the inverted T-shaped frame 52, a height adjusting group 54 is installed at the top of the inverted T-shaped frame 52, a reset spring 55 sleeved on the vertical section of the inverted T-shaped frame 52 is installed between the height adjusting group 54 and the connecting plate 51, and a pressing driving member 56 pressing the inverted T-shaped frame 52 is installed at the top of the fixing base 4.
Referring to fig. 1, 4, 5 and 8, when the elastic performance of the yarn 6 is tested, the two ends of the yarn 6 are fixed by the end mechanism 2 and the yarn 6 is straightened, then the yarn 6 in a stretched state is pressed against different positions and different depths by the horizontal sliding fit of the height adjusting group 54, the pressing driving piece 56 and the connecting plate 51, then the pressing test mechanism 5 is reset, and the elastic restoring capability of the yarn 6 is detected by the matching of the 匚 -shaped seat 23 with the support bracket 20 and the deformation size display group 24 on the support bracket, so that whether the yarn 6 can be restored to the original length after being pressed and stretched is observed.
In summary, through supporting the pressure testing mechanism 5, the end mechanism 2 and the horizontal tensile testing mechanism 3 cooperate, realize that yarn 6 carries out biaxial stretching test under the supporting pressure of different positions and carries out the test under the supporting pressure tensile of different positions and different depths under the tensile state, simulate the atress condition that yarn 6 received in the in-service use from a plurality of directions, comprehensive aassessment yarn 6's tensile properties, and then improved yarn 6 tensile properties detection's accuracy.
Referring to fig. 1 and fig. 4, the connecting shaft 53 is rotatably sleeved with a limiting abutting roller 530 which is uniformly distributed along the axial direction of the connecting shaft, the limiting abutting roller 530 is an i-shaped wheel, a horizontal section of the limiting abutting roller 530 is located above the yarn 6, and the yarn 6 is located between two vertical sections of the limiting abutting roller 530, so that the limiting of the limiting abutting roller 530 to the yarn 6 is realized, the problem that the accuracy of detection is affected by the deviation of the yarn 6 in the detection process is avoided, meanwhile, the friction force of a single yarn 6 during stretching is reduced, and the accuracy of detection of the stretching performance of the yarn 6 is improved.
Referring to fig. 1, 4 and 5, the height adjusting set 54 includes a complementary seat 540 mounted on top of the vertical section of the inverted T-shaped frame 52, the return spring 55 is connected with the bottom of the complementary seat 540, a receiving slot 541 extending to the vertical section of the inverted T-shaped frame 52 is provided at the top center of the complementary seat 540, a supporting frame 542 is slidably connected in the receiving slot 541, the supporting frame 542 is in an inverted u-shaped structure, a limiting slot 543 symmetrically arranged along the length direction of the supporting frame is provided at the top of the complementary seat 540, a sliding block 544 is slidably connected in the limiting slot 543, a swinging rod 545 is hinged between the sliding block 544 and the supporting frame 542, a bidirectional screw 546 in threaded engagement with the sliding block 544 is rotatably connected between the two limiting slots 543, and the bidirectional screw 546 passes between the two vertical sections of the supporting frame 542.
When the pressing depth of the yarn 6 needs to be adjusted, the bidirectional screw 546 is rotated to drive the two sliding blocks 544 to move through threaded fit between the bidirectional screw 546 and the two sliding blocks 544, and the sliding blocks 544 push the pressing frame 542 upwards through the swinging rod 545 or pull the pressing frame 542 downwards through the swinging rod 545, so that the distance between the top of the pressing frame 542 and the pressing driving piece 56 is adjusted, the pressing deformation of the connecting shaft 53 to the yarn 6 with different depths is realized when the pressing driving piece 56 descends by the same height, and the deformation of the yarn 6 with different pressing depths is simulated in the actual use process, so that the comprehensiveness of the detection of the elastic deformation of the yarn 6 is improved.
Referring to fig. 1 and 2, the deformation size display set 24 includes a displacement locking assembly installed between the 匚 -shaped seat 23 and the support bracket 20 connected thereto, and uniformly arranged drawing springs 240, wherein a size scale 241 is provided on the top of one horizontal segment of the 匚 -shaped seat 23 parallel to the yarn 6, and a pointer 242 matched with the size scale 241 is installed on the support bracket 20.
In the initial state, the two ends of the yarn 6 are fixed through the end mechanism 2, at the moment, the displacement locking assembly does not limit the support bracket 20 connected to the 匚 -shaped seat 23 any more, the support bracket 20 straightens the yarn 6 under the action of the retraction spring 240, then the displacement locking assembly locks the position of the support bracket 20 on the 匚 -shaped seat 23, the scale value pointed by the pointer 242 at the moment is recorded, then the yarn 6 is subjected to the pressing deformation of different positions and different depths in the stretching state, the pressing testing mechanism 5 is reset after the detection is finished, the displacement locking assembly is driven to stop the limit locking of the support bracket 20 connected to the 匚 -shaped seat 23, at the moment, whether the retraction spring 240 pulls the support bracket 20 connected with the displacement locking assembly to move or not is observed, the movement range is within the allowable range of the elastic deformation of the yarn 6, so that whether the elastic recovery capability of the yarn 6 is qualified is judged, and if the movement range is within the allowable range of the elastic deformation of the yarn 6, the elastic recovery capability of the yarn 6 is qualified is indicated, otherwise, the elastic recovery capability of the yarn 6 is disqualified is judged.
Referring to fig. 1, 5 and 6, the displacement locking assembly includes a guiding groove 250 formed in the middle section of the 匚 -shaped seat 23, a guiding plate 251 mounted on the support bracket 20 connected to the 匚 -shaped seat 23, a locking screw 252 mounted on the top of the 匚 -shaped seat 23 and slidably penetrating the guiding groove 250, a locking plate 253 rotatably mounted on the locking screw 252 after penetrating the guiding groove 250, and the locking screw 252 and the 匚 -shaped seat 23 connected in a threaded fit manner, wherein the locking plate 253 is slidably connected with the guiding groove 250.
When the yarn 6 is tested for tensile property, the locking screw 252 drives the locking plate 253 to press against the guide plate 251, so that the 匚 -shaped seat 23 and the support bracket 20 connected with the seat are locked in position, the horizontal tensile testing mechanism 3 is used for testing the tensile property of the yarn 6 in two directions under different pressing positions, when the yarn 6 is tested for elasticity, the guide plate 251 is firstly locked by the locking screw 252 through the locking plate 253, after the test is finished, the locking screw 252 drives the locking plate 253 to move upwards, the guide plate 251 is not pressed and locked any more, if the elastic recovery capability of the yarn 6 is poor, the retraction spring 240 pulls the support bracket 20 connected with the retraction spring through elasticity to move towards the locking screw 252, the scale value pointed by the pointer 242 at the moment is recorded, and then whether the moving range is within the elastic deformation range of the yarn 6 is checked, so that the elastic recovery capability of the yarn 6 is judged to be qualified.
Referring to fig. 6, a rubber gasket 254 is installed at the bottom of the lock pressing plate 253, and the rubber gasket 254 is used for increasing the friction between the lock pressing plate 253 and the guide plate 251, so as to avoid the problem that the guide plate 251 slides in the detection process, and the accuracy of detecting the tensile property of the yarn 6 is affected.
Referring to fig. 1-8, the invention further provides a method for detecting the tensile property of a spun-dyed yarn, which comprises the following steps of S1, sampling and fixing, selecting a plurality of yarns 6 with a certain length, and fixing two ends of the yarns 6 through an end fixing mechanism 2.
S2, tensile testing, namely performing biaxial tension testing on the yarns 6 under the action of pressing deformation at different positions through the cooperation of the end mechanism 2 and the horizontal tension testing mechanism 3 and the pressing testing mechanism 5 until the yarns 6 are broken in biaxial tension each time, and determining the tensile strength of the yarns 6 through maximum tensile load analysis before breaking the yarns 6 for a plurality of times.
S3, elasticity test, through the end mechanism 2 with support the cooperation of pressing the testing mechanism 5, fix the yarn 6 both ends and make the yarn 6 be in the state of stretching, then press the testing mechanism 5 to the yarn 6 through support and carry out the pushing down of different positions and different degree of depth, yarn 6 produces the deformation of different positions and different pulling forces, after the test is accomplished, through 匚 shape seat 23 with support bracket 20 and deformation size display group 24 on it cooperate, observe that yarn 6 can resume original length after supporting the tensile, judge the elasticity resilience ability of detecting yarn 6.
And S4, obtaining a result, namely evaluating the tensile strength capability and elastic recovery capability of the yarn 6 to obtain the tensile property of the yarn 6, comparing the tensile property with a standard tensile property range of the yarn 6, and if the tensile property of the yarn 6 obtained by evaluation is within the allowable range, indicating that the tensile property of the yarn 6 is qualified, otherwise, failing.
In the description of the present invention, it should be understood that the terms "long", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119574315A (en) * | 2025-02-07 | 2025-03-07 | 东莞市民兴电缆有限公司 | A cable tensile performance testing device |
| CN120028150A (en) * | 2025-02-17 | 2025-05-23 | 吴江罗太化纤有限公司 | A comprehensive testing device for the strength, elongation and elasticity of nylon coated yarn |
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| CN121298435A (en) * | 2025-10-16 | 2026-01-09 | 青岛汉缆海洋工程装备有限公司 | A device for testing the tension of water-blocking yarn insulation in submarine cable conductors |
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| CN119574315A (en) * | 2025-02-07 | 2025-03-07 | 东莞市民兴电缆有限公司 | A cable tensile performance testing device |
| CN119574315B (en) * | 2025-02-07 | 2025-05-06 | 东莞市民兴电缆有限公司 | Cable stretching performance testing device |
| CN120028150A (en) * | 2025-02-17 | 2025-05-23 | 吴江罗太化纤有限公司 | A comprehensive testing device for the strength, elongation and elasticity of nylon coated yarn |
| CN120084563A (en) * | 2025-04-07 | 2025-06-03 | 宁波联合华发五金机械有限公司 | A device for testing the gear limit function of a child seat |
| CN120314060A (en) * | 2025-05-21 | 2025-07-15 | 上海题桥江苏纺织科技有限公司 | A textile fabric biaxial stretching detection mechanism |
| CN120489722A (en) * | 2025-07-21 | 2025-08-15 | 陕西银华纺织有限责任公司 | Semi-automatic yarn changing equipment of yarn testing equipment |
| CN120869822A (en) * | 2025-09-29 | 2025-10-31 | 江苏大生集团有限公司 | Online detection system for quality of cone yarn |
| CN121298435A (en) * | 2025-10-16 | 2026-01-09 | 青岛汉缆海洋工程装备有限公司 | A device for testing the tension of water-blocking yarn insulation in submarine cable conductors |
| CN121540546A (en) * | 2026-01-13 | 2026-02-17 | 宜宾禾城纺织科技有限公司 | A device and method for testing the tensile strength of textile yarns |
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