Tensile testing device for textile fabric

Abstract

The utility model discloses a tensile testing device for textile fabric, which relates to the technical field of detection and comprises a testing bedplate and a movable clamping plate device, symmetrical mounting holes are arranged on the upper end face of the testing bedplate, a fixed clamping plate device is fixedly connected onto the mounting hole at one end, and a fixed support is fixedly connected onto the mounting hole at the other end. A set of parallel guide rods are fixedly connected between the fixed clamping plate device and the fixed support, a driving lead screw is rotationally connected between the guide rods, one end of the driving lead screw is connected with a driving motor, the movable clamping plate device is in sliding connection with the guide rods and in transmission connection with the driving lead screw, and a sliding groove parallel to the guide rods is formed in the upper end face of the testing table plate. Parallel T-shaped grooves are formed in the two sides of the sliding groove, a graduated scale plate device is slidably connected into the sliding groove and fixedly connected with a movable clamping plate device, and positioning devices are arranged in the T-shaped grooves. The device is simple and reliable in structure, the cloth deformation value can be conveniently obtained, the testing precision is improved, and the testing efficiency is improved.

Description

A tensile testing device for textile fabrics Technical Field

[0001] This utility model belongs to the field of testing technology, specifically relating to a tensile testing device for textile fabrics. Background Technology

[0002] After the textile fabric is processed, a tensile test is required. This is the core method for testing the mechanical properties of textile fabrics. It mainly measures parameters such as the breaking strength, elongation, and elastic modulus of the fabric to ensure that the strength, elasticity, and durability of the fabric meet the application requirements.

[0003] Patent application CN202321589856.8 discloses a device for testing the tensile strength of textiles, including a testing platform. One end of the testing platform is provided with a tensile cavity, a driving component, a movable clamping component, and a fixed clamping component. The fixed clamping component and the movable clamping component each include a fixed base and a movable base. A positioning frame is fixedly connected to the upper side of both the fixed base and the movable base. A lower clamping plate is fixedly connected to the lower end of the positioning frame. An upper clamping plate adapted to the lower clamping plate is provided at the upper end of the lower clamping plate. An adjusting screw for driving the upper and lower movement of the upper clamping plate is provided at the upper end of the upper clamping plate. Horizontal arc-shaped grooves are equidistantly arranged on the upper end of the lower clamping plate, and arc-shaped protrusions adapted to the arc-shaped grooves are equidistantly arranged on the lower end of the upper clamping plate. This device improves the stability between the textile and the fixed clamping component and the movable clamping component, and prevents the textile end from being pulled out due to the influence of tensile force. However, the above-mentioned device has some problems. For example, the clamping device is equipped with two adjusting screws. When clamping the fabric, the adjusting screws need to be rotated synchronously at the same speed, which can easily cause jamming. In addition, since the test fabrics have different sizes and specifications, the initial value of the scale needs to be read first during the test, and the scale value needs to be read again after the test. The two values ​​need to be subtracted to obtain the fabric deformation value. Reading the scale multiple times leads to large errors, which is very inconvenient and affects the testing efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background, this utility model provides a tensile testing device for textile fabrics. The device has a simple and reliable structure, can conveniently obtain fabric deformation values, improve testing accuracy, and enhance testing efficiency.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A tensile testing device for textile fabrics includes a test platform and a movable clamping plate. Symmetrical mounting holes are formed on the upper surface of the test platform. A fixed clamping plate is fixedly connected to one mounting hole, and a fixed bracket is fixedly connected to the other mounting hole. A set of parallel guide rods are fixedly connected between the fixed clamping plate and the fixed bracket. A drive screw is rotatably connected between the guide rods, and a drive motor is connected to one end of the drive screw. The movable clamping plate is slidably connected to the guide rods and drively connected to the drive screw. A groove parallel to the guide rods is formed on the upper surface of the test platform. Parallel T-slots are provided on both sides of the groove. A scale plate is slidably connected within the groove and fixedly connected to the movable clamping plate. A positioning device is provided within the T-slots.

[0007] As a further provision of the above scheme, the fixed clamping plate device includes a fixed clamping platform, and the movable clamping plate device includes a movable clamping platform. The movable clamping platform is provided with a screw hole and a through hole. The screw hole is connected to the drive screw for transmission, and the through hole is slidably connected to the guide rod. An upper clamping plate is hinged to the same side of the upper end face of the fixed clamping platform and the movable clamping platform. A stud is vertically connected to the lower end face of the other side of the upper clamping plate, and a locking nut is screwed onto the stud.

[0008] As a further feature of the above solution, a through slot is provided on the other side of the upper end face of the fixed clamping platform and the movable clamping platform, and the slot is correspondingly provided with the stud. Corresponding friction textures are provided on the upper end face of the fixed clamping platform and the movable clamping platform and the lower end face of the upper clamping plate.

[0009] As a further feature of the above scheme, the scale plate device includes a scale plate that is slidably connected in a slide groove. The scale plate is provided with a scale. A guide groove parallel to the slide groove is opened at the center of the upper surface of the scale plate. A connecting frame is fixedly connected to one end of the scale plate, and the connecting frame is fixedly connected to the movable clamping plate device.

[0010] As a further provision of the above scheme, the positioning device includes a set of vertically arranged columns, with a horizontal plate fixedly connected between the upper ends of the columns and a slide table fixedly connected to the lower end of the columns. The slide table is slidably connected in a T-slot. Locking bolts are screwed into the columns and the slide table, and the locking bolts can be screwed downward out of the slide table. A vertical groove is opened on the right side of the column, and a positioning plate device is connected in the groove. An abutment device is provided on the horizontal plate, and a positioning hole is opened on the right side of the horizontal plate.

[0011] As a further provision of the above solution, the abutting platform device includes an abutting rod, which is vertically slidably connected to the middle of the horizontal plate. A limiting plate is provided at the upper end of the abutting rod, and a slider is fixedly connected to the lower end of the abutting rod. The slider is slidably connected to the slide groove. A pressure spring is sleeved on the abutting rod. The upper end of the pressure spring is connected to the lower end face of the horizontal plate, and the lower end of the pressure spring is connected to the slider.

[0012] As a further provision of the above solution, the positioning plate device includes a U-shaped support plate, the two sides of which are slidably connected to the vertical groove. A protruding plate is provided at the upper end of the U-shaped support plate, and a fixing rod is connected to the protruding plate. The fixing rod is correspondingly set with the positioning hole. A vertically downward positioning plate is fixedly connected to the lower end of the U-shaped support plate, and the lower side of the positioning plate is slidably connected to the sliding groove.

[0013] This utility model has the following beneficial effects:

[0014] By setting up a fixed clamping plate device and a movable clamping plate device, when fixing the fabric, place both sides of the fabric on the upper surfaces of the fixed clamping platform and the movable clamping platform, swing the upper clamping plate, the stud passes through the slot, screw on the locking nut, press the upper clamping plate to fit the fabric, and cooperate with the friction texture to quickly and rapidly clamp and fix the fabric. The structure is simple and reliable, avoiding jamming.

[0015] The drive motor drives the drive screw to rotate, which in turn moves the moving clamping plate away from the fixed clamping plate to taut the fabric before automatically stopping. This pushes the positioning device, which then engages with the scale plate and locks in place. The positioning plate is then lifted upwards to release the limit on the scale plate, and the drive screw continues to rotate to perform a tensile test on the fabric. The scale plate extends beyond the positioning plate. After the test, the fabric's deformation length can be obtained simply by reading the scale plate, eliminating the need for multiple readings and improving testing accuracy and efficiency. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the appearance of this utility model;

[0017] Figure 2 is a schematic diagram of the test platform of this utility model;

[0018] Figure 3 is a schematic diagram of the fixed clamping plate device and the movable clamping plate device of this utility model;

[0019] Figure 4 is a schematic diagram of the scale plate device of this utility model;

[0020] Figure 5 is a cross-sectional schematic diagram of the positioning device of this utility model;

[0021] Figure 6 is an isometric schematic diagram of the positioning device of this utility model.

[0022] 1. Test platform; 2. Fixed clamping plate device; 3. Moving clamping plate device; 4. Fixed bracket; 5. Guide rod; 6. Drive screw; 7. Drive motor; 8. Scale plate device; 9. Positioning device; 101. Mounting hole; 102. Slide groove; 103. T-slot; 201. Fixed clamping platform; 202. Upper clamping plate; 203. Stud; 204. Locking nut; 205. Slot; 206. Friction texture; 301. Moving clamping platform; 3011. Screw hole; 3012. Through hole; 801. Scale Ruler plate; 802, guide groove; 803, scale; 804, connecting frame; 901, column; 9011, vertical groove; 902, horizontal plate; 9021, positioning hole; 903, slide table; 904, locking bolt; 905, abutment platform device; 9051, abutment rod; 9052, limit plate; 9053, slider; 9054, pressure spring; 906, positioning plate device; 9061, U-shaped bracket plate; 9062, protruding plate; 9063, fixing rod; 9064, positioning plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to Figures 1-6 and the embodiments.

[0025] As shown in Figures 1 and 2, a tensile testing device for textile fabrics includes a test platform 1 and a movable clamping plate device 3. Symmetrical mounting holes 101 are opened on the upper surface of the test platform 1. A fixed clamping plate device 2 is fixedly connected to one end of the mounting hole 101, and a fixed bracket 4 is fixedly connected to the other end of the mounting hole 101. A set of parallel guide rods 5 are fixedly connected between the fixed clamping plate device 2 and the fixed bracket 4. A drive screw 6 is rotatably connected between the guide rods 5. A drive motor 7 is connected to one end of the drive screw 6. The movable clamping plate device 3 is slidably connected to the guide rods 5 and is driven by the drive screw 6. A sliding groove 102 parallel to the guide rods 5 is opened on the upper surface of the test platform 1. Parallel T-slots 103 are provided on both sides of the sliding groove 102. A scale plate device 8 is slidably connected in the sliding groove 102. The scale plate device 8 is fixedly connected to the movable clamping plate device 3. A positioning device 9 is provided in the T-slot 103.

[0026] As shown in Figure 3, the fixed clamping plate device 2 includes a fixed clamping platform 201, and the movable clamping plate device 3 includes a movable clamping platform 301. The movable clamping platform 301 is provided with a screw hole 3011 and a through hole 3012. The screw hole 3011 is connected to the drive screw 6 for transmission, and the through hole 3012 is slidably connected to the guide rod 5. An upper clamping plate 202 is hinged to the same side of the upper end face of the fixed clamping platform 201 and the movable clamping platform 301. A stud 203 is vertically connected to the lower end face of the other side of the upper clamping plate 202. A locking nut 204 is screwed onto the stud 203. A through slot 205 is opened on the other side of the upper end face of the fixed clamping platform 201 and the movable clamping platform 301. The slot 205 is correspondingly set with the stud 203. Corresponding friction textures 206 are provided on the upper end face of the fixed clamping platform 201, the movable clamping platform 301 and the lower end face of the upper clamping plate 202.

[0027] As shown in Figure 4, the scale plate device 8 includes a scale plate 801, which is slidably connected in the slide groove 102. The scale plate 801 is provided with scales 803. A guide groove 802 parallel to the slide groove 102 is opened at the center of the upper end surface of the scale plate 801. A connecting frame 804 is fixedly connected to one end of the scale plate 801. The connecting frame 804 is fixedly connected to the movable clamping plate device 3.

[0028] As shown in Figure 5, the positioning device 9 includes a set of vertically arranged columns 901. A horizontal plate 902 is fixedly connected between the upper ends of the columns 901, and a slide 903 is fixedly connected to the lower end of the columns 901. The slide 903 is slidably connected in the T-slot 103. A locking bolt 904 is screwed into the columns 901 and the slide 903, and the locking bolt 904 can be screwed downward out of the slide 903. A vertical groove 9011 is opened on the right side of the columns 901, and a positioning plate device 906 is connected in the groove 9011. An abutment device 905 is provided on the horizontal plate 902, and a positioning hole 9021 is opened on the right side of the horizontal plate 902. The abutment device 905 includes an abutment rod 9051, which is vertically slidably connected in the middle of the horizontal plate 902. A limit is provided at the upper end of the abutment rod 9051. Plate 9052, a slider 9053 is fixedly connected to the lower end of the abutment rod 9051, the slider 9053 is slidably connected to the slide groove 802, a pressure spring 9054 is sleeved on the abutment rod 9051, the upper end of the pressure spring 9054 is connected to the lower end face of the horizontal plate 902, and the lower end of the pressure spring 9054 is connected to the slider 9053. The positioning plate device 906 includes a U-shaped support plate 9061, the two sides of the U-shaped support plate 9061 are slidably connected to the vertical groove 9011, the upper end of the U-shaped support plate 9061 is provided with a protruding plate 9062, a fixing rod 9063 is connected to the protruding plate 9062, the fixing rod 9063 is correspondingly set with the positioning hole 9021, and the lower end of the U-shaped support plate 9061 is fixedly connected to a vertically downward positioning plate 9064, the lower side of the positioning plate 9064 is slidably connected to the slide groove 102.

[0029] The working process of this utility model is as follows: The fabric is placed on both sides of the fixed clamping platform 201 and the upper surface of the movable clamping platform 301. The upper clamping plate 202 is swung, the stud 203 passes through the slot 205, and the locking nut 204 is screwed on. The locking nut 204 presses the upper clamping plate 202 against the fabric, and with the friction texture 206, the fabric is clamped and fixed. The drive motor 7 is started to drive the drive screw 6 to rotate. The drive screw 6 drives the movable clamping plate device 3 away from the fixed clamping plate device 2, straightening the fabric and then automatically stopping. The positioning device 8 is pushed, and the slide table 903 slides in the T-slot 103. The positioning plate 9064 slides in the slide groove 102, and the positioning plate 9064 abuts against the scale plate. The locking bolt is rotated downwards. 904. The lower end of the locking bolt 904 abuts against the test platform 1, locking the column 901. The positioning plate device 906 is lifted upward, and the fixing rod 9063 is engaged in the positioning hole 9021, releasing the limit on the scale plate 801. The drive screw 6 continues to rotate, performing a tensile test on the fabric. The scale plate 801 protrudes from the positioning plate device. After the test, the deformation length of the fabric can be obtained simply by reading the scale protruding from the scale plate 801, without having to read the scale multiple times. During the test, under the action of the pressure spring 9054, the slider 9053 slides against the slide groove 802 to prevent the scale plate 801 from warping and deforming, ensuring the accuracy of the scale plate 801.

[0030] It should be noted that the timing of the movement and stopping of the moving clamp device 3 during the test can be determined by setting a sensor. For example, a sensor can be set to detect changes in the load on the drive motor 7. When the load on the drive motor 7 suddenly increases, it indicates that the fabric is taut. At this time, the drive motor 7 should stop and lock in time to fix the moving clamp device 3, so as to facilitate the adjustment of the position of the positioning device 9. After the position of the positioning device 9 is adjusted, the drive motor 7 continues to rotate to perform the tensile test. When the load on the drive motor 7 suddenly decreases, it indicates that the fabric has suffered structural damage. The test can be stopped immediately, and the moving clamp device 3 can be fixed to facilitate the reading. This method is existing technology and has not been described in detail in this technical solution.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tensile testing device for textile fabrics, comprising a test platform and a movable clamping plate device, wherein symmetrical mounting holes are formed on the upper surface of the test platform, a fixed clamping plate device is fixedly connected to the mounting hole at one end, and a fixed bracket is fixedly connected to the mounting hole at the other end, characterized in that, A set of parallel guide rods are fixedly connected between the fixed clamping plate device and the fixed bracket. A drive screw is rotatably connected between the guide rods, and a drive motor is connected to one end of the drive screw. The movable clamping plate device is slidably connected to the guide rods and is driven by the drive screw. A sliding groove parallel to the guide rods is opened on the upper surface of the test platform. Parallel T-slots are provided on both sides of the sliding groove. A scale plate device is slidably connected in the sliding groove. The scale plate device is fixedly connected to the movable clamping plate device. A positioning device is provided in the T-slot.

2. The tensile testing apparatus for textile fabric of claim 1, wherein, The fixed clamping plate device includes a fixed clamping platform, and the movable clamping plate device includes a movable clamping platform. The movable clamping platform is provided with a screw hole and a through hole. The screw hole is connected to the drive screw for transmission, and the through hole is slidably connected to the guide rod. An upper clamping plate is hinged to the same side of the upper end face of the fixed clamping platform and the movable clamping platform. A stud is vertically connected to the lower end face of the other side of the upper clamping plate, and a locking nut is screwed onto the stud.

3. The tensile testing device for textile fabrics according to claim 2, characterized in that, The fixed clamping platform and the movable clamping platform have through slots on the other side of their upper surfaces, and the slots are corresponding to the studs. The upper surfaces of the fixed clamping platform and the movable clamping platform and the lower surface of the upper clamping plate are provided with corresponding friction patterns.

4. The tensile testing device for textile fabrics according to claim 1, characterized in that, The scale plate device includes a scale plate that is slidably connected in a slide groove. The scale plate is provided with graduations. A guide groove parallel to the slide groove is opened at the center of the upper surface of the scale plate. A connecting frame is fixedly connected to one end of the scale plate, and the connecting frame is fixedly connected to the movable clamping plate device.

5. The tensile testing apparatus for textile fabric of claim 4, wherein, The positioning device includes a set of vertically arranged columns, with a horizontal plate fixedly connected to the upper ends of the columns and a slide table fixedly connected to the lower ends of the columns. The slide table is slidably connected in a T-slot. Locking bolts are screwed into the columns and the slide table, and the locking bolts can be screwed downward out of the slide table. A vertical groove is opened on the right side of the column, and a positioning plate device is connected in the groove. An abutment device is provided on the horizontal plate, and a positioning hole is opened on the right side of the horizontal plate.

6. The tensile testing apparatus for textile fabric of claim 5, wherein, The abutment platform device includes an abutment rod, which is vertically slidably connected to the middle of the horizontal plate. A limiting plate is provided at the upper end of the abutment rod, and a slider is fixedly connected to the lower end of the abutment rod. The slider is slidably connected to the slide groove. A pressure spring is sleeved on the abutment rod. The upper end of the pressure spring is connected to the lower end face of the horizontal plate, and the lower end of the pressure spring is connected to the slider.

7. The tensile testing device for textile fabrics according to claim 5, characterized in that, The positioning plate device includes a U-shaped support plate, with both sides of the U-shaped support plate slidably connected to the vertical groove. The upper end of the U-shaped support plate is provided with a protruding plate, and a fixing rod is connected to the protruding plate. The fixing rod is correspondingly set with the positioning hole. The lower end of the U-shaped support plate is fixedly connected to a vertically downward positioning plate, and the lower side of the positioning plate is slidably connected to the sliding groove.

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