A glass fiber product tensile testing device and method thereof

Abstract

The application relates to the technical field of tensile strength detection, in particular to a glass fiber product tensile detection device and method, which comprises a bottom plate, a calibration mechanism, an adjusting mechanism and a tensile mechanism; the calibration mechanism comprises a calibration laser marking line emitter, which is used to emit a straight marking line to calibrate the fiber silk direction of the glass fiber product; the adjusting mechanism comprises a supporting plate, a rotating adjusting structure and two first clamping structures; the supporting plate is arranged in parallel at the upper end of the bottom plate; the rotating adjusting structure is arranged at the lower end of the supporting plate and is used to drive the supporting plate to rotate around the central axis of the supporting plate; and the two first clamping structures are arranged at the two ends of the supporting plate; the tensile mechanism is arranged between the two first clamping structures and is used for tensile testing of the glass fiber product; the calibration mechanism, the adjusting mechanism and the tensile mechanism are arranged, so that the tensile performance of the glass fiber product can be more accurately detected.

Description

Technical Field

[0001] This invention relates to the field of tensile strength testing technology, specifically to a tensile testing device for glass fiber products, and further specifically to a testing method for the tensile testing device for glass fiber products. Background Technology

[0002] Glass fiber products include glass fiber cloth, fiber mesh, and fiber tubes. To understand the performance and lifespan of glass fiber products in practical applications, tensile strength testing is performed. The testing method for glass fiber mesh is usually to clamp both ends of the glass fiber mesh using a clamping mechanism and then pull the glass fiber mesh to measure the deformation and whether there is any damage or breakage, thereby ensuring the quality and reliability of the product.

[0003] Chinese Patent CN117890192B discloses a device for testing the tensile strength of finished glass fiber products. Its working principle is as follows: First, the base is fixed to an external worktable. Then, the end of the glass fiber fabric is manually passed through the corresponding two pressure rods. Next, a limiting plate is pushed, compressing the compression spring. The limiting plate then drives a connecting plate to rotate. The connecting plate, through a track groove on the shaft, moves the corresponding movable rectangular block towards the relatively fixed rectangular block, causing the two pressure rods to squeeze the glass fiber fabric. Then, the screw is manually rotated to screw into the screw hole, adjusting the squeezing force of the two pressure rods on the glass fiber fabric. The limiting plate is then fixed, keeping the pressure rods clamping the glass fiber fabric. After the ends of fiberglass fabrics of different lengths are connected to the corresponding tensioning mechanisms, an external motor is installed on the base to drive the rotating shaft. At this time, the torque required for the external motor to drive the upright plate and the tensioning mechanism on the upright plate to rotate is A. Then, as the external motor rotates, the torque changes from A to A+B. By changing the value of B, the tension on the fiberglass fabric can be changed. Then, by observing the deformation and damage of the fiberglass fabric under different tensions, and with the T-blocks increasing in distance from the rotating shaft in the corresponding T-slots from front to back, the tensile performance of fiberglass fabrics of different lengths under the same tension can be compared to determine whether the tensile performance of the fiberglass fabric is qualified.

[0004] The above solution still has the following problems: when the workers clamp the two ends of the fiberglass cloth, they do not adjust the position of the fiberglass cloth. Since the direction of the force of the pulling mechanism is fixed, if the fiber filaments on the fiberglass cloth are not parallel to the direction of the force of the pulling mechanism, there will be a large deviation between the tensile performance measured by the pulling mechanism and the actual tensile performance of the fiberglass cloth. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a tensile testing device for glass fiber products. The invention includes a calibration mechanism, an adjustment mechanism, and a tensile mechanism, thereby enabling more accurate testing of the tensile properties of glass fiber products.

[0006] To address the problems of existing technologies, this invention provides a tensile testing device for glass fiber products, comprising a base plate, a calibration mechanism, an adjustment mechanism, and a tensile mechanism. The base plate is horizontally positioned. The calibration mechanism is positioned above the base plate and includes a calibration laser marking line emitter, which emits straight marking lines to calibrate the fiber direction of the glass fiber product. The adjustment mechanism is positioned on the base plate and includes a support plate, a rotation adjustment structure, and two first clamping structures. The support plate is parallel to the upper end of the base plate, and the rotation adjustment structure is positioned at the lower end of the support plate, driving the support plate to rotate around its central axis. The two first clamping structures are respectively positioned at both ends of the support plate. The tensile mechanism is positioned between the two first clamping structures for performing tensile tests on the glass fiber product.

[0007] Preferably, the rotary adjustment structure includes a second rotating shaft, a worm gear transmission structure, and a rotary driver; the second rotating shaft is vertically arranged, one end of the second rotating shaft is connected to the support plate, the other end of the second rotating shaft passes downward through the base plate, and the second rotating shaft and the base plate are connected by a bearing; the worm gear transmission structure is located at the lower end of the second rotating shaft; the rotary driver is connected to the worm gear transmission structure.

[0008] Preferably, the first clamping structure includes a mounting base, a guide roller group, a clamping roller group, and a pressing component; the mounting base is disposed on a support plate; the guide roller group is disposed on the mounting base and has n rollers; the clamping roller group is disposed parallel to the upper end of the guide roller group and has n-1 rollers, the rollers in the clamping roller group being staggered with the rollers in the guide roller group; the pressing component is disposed at the upper end of the clamping roller group and is used to apply a downward force to the clamping roller group.

[0009] Preferably, the adjustment mechanism further includes a tensioning structure disposed inside the support plate, which is used to drive the two first clamping structures to move closer to or further apart from each other.

[0010] Preferably, the calibration mechanism further includes two visual monitors, which are respectively disposed on both sides of the calibration laser marking line emitter, and the connecting line between the two visual monitors extends to both ends of the support plate.

[0011] Preferably, the calibration mechanism further includes a transmitter adjustment structure, which is located at the upper end of the calibration laser marking line transmitter. The transmitter adjustment structure includes a first rectangular frame, a first rotating shaft, and a swing assembly. The first rectangular frame is arranged parallel to the base plate. The two ends of the first rotating shaft are respectively axially connected to the two ends of the first rectangular frame, and the axis of the first rotating shaft is parallel to the line connecting the two visual monitors. The calibration laser marking line transmitter is suspended at the lower end of the first rotating shaft, and the calibration laser marking line transmitter rotates synchronously with the first rotating shaft. The swing assembly is located at the upper end of the first rotating shaft and is used to drive the first rotating shaft to rotate.

[0012] Preferably, the oscillating assembly includes a transmission plate, a drive shaft, and a first linear actuator; one end of the transmission plate is fixedly connected to the middle of the first rotating shaft, and the other end of the transmission plate is provided with a limiting groove; the drive shaft is disposed in the limiting groove; the first linear actuator is mounted on the first rectangular frame, and the output end of the first linear actuator is connected to the drive shaft.

[0013] Preferably, the swing assembly further includes a second rectangular frame and two first guide posts; the second rectangular frame is covered outside the transmission plate, and both ends of the drive shaft are connected to the second rectangular frame; the two first guide posts are respectively disposed at both ends of the second rectangular frame, one end of the first guide post is connected to the second rectangular frame, and the other end of the first guide post is slidably connected to the first rectangular frame.

[0014] Preferably, the tensioning mechanism includes a mounting plate, two second clamping structures, and a tensioning structure; the mounting plate is disposed on the base plate; the two second clamping structures are respectively disposed at both ends of the mounting plate; the tensioning structure is disposed between the two second clamping structures, and the tensioning structure is used to control the distance between the two second clamping structures.

[0015] A testing method for a tensile testing device for glass fiber products includes the following steps:

[0016] S1, First, the fiberglass product is passed through the first clamping structure, the two clamping structures and the second clamping structure in sequence. The two clamping structures hold a section of the fiberglass product, and the worker cuts the section of the fiberglass product.

[0017] S2, the tensioning structure tensions the glass fiber product between the two first clamping structures toward both ends, so that the glass fiber product is in a tensioned state.

[0018] S3, the laser marking line emitter is calibrated to emit marking lines, which are projected onto the fiberglass product;

[0019] S4, the rotating adjustment structure rotates the support plate. The support plate drives the glass fiber product to rotate through two first clamping structures, and under the monitoring of two vision monitors, makes a fiber on the glass fiber product completely coincide with the marking line.

[0020] S5, the tensioning structure first adjusts the distance between the two second clamping structures so that the distance between the two second clamping structures matches the length of the glass fiber product to be tested;

[0021] S6, the two second clamping structures clamp the two ends of the glass fiber product, and the stretching structure drives the two second clamping structures to move away from each other until the two second clamping structures break the glass fiber product.

[0022] The advantages of this invention compared to the prior art are:

[0023] 1. This invention includes a calibration mechanism, an adjustment mechanism, and a stretching mechanism. One end of the glass fiber product passes sequentially through a first clamping structure, a stretching mechanism, and a second clamping structure, and is clamped at both ends by the two clamping structures. A calibration laser marking line emitter emits a straight marking line, which is projected onto the glass fiber product. If the marking line intersects with the fiber filaments on the glass fiber product, the rotation adjustment mechanism starts working, driving the support plate to rotate around its central axis. Since the support plate rotates along with the glass fiber product through the two clamping structures, the glass fiber product also rotates around its central axis, adjusting the direction of the fiber filaments on the glass fiber product. When one fiber filament on the glass fiber product completely coincides with the marking line, the rotation adjustment mechanism stops working. At this point, it can be considered that all the fiber filaments on the glass fiber product along one direction are parallel to the direction of the force applied by the stretching mechanism. The stretching mechanism begins to perform a tensile test on the glass fiber product. Since the fiber filaments are parallel to the stretching direction, the tensile force can act more directly on the fiber filaments, thereby enabling more accurate detection of the tensile properties of the glass fiber product.

[0024] 2. This invention includes a second rotating shaft, a worm gear transmission structure, and a rotary driver. The rotary driver drives the worm to rotate, which in turn drives the worm wheel to rotate, thereby driving the second rotating shaft connected to the worm wheel to rotate. The second rotating shaft drives the support plate to rotate around its axis. The worm gear transmission structure has a self-locking capability. When the rotary driver stops working, the friction between the worm wheel and the worm will prevent them from continuing to rotate relative to each other. Therefore, no matter what angle the support plate is rotated to, once the rotary driver stops working, the support plate will immediately stop at that position and will not continue to rotate due to inertia or other external factors. This achieves precise rotation and stopping control of the support plate and the glass fiber product on its upper end. Attached Figure Description

[0025] Figure 1 This is a three-dimensional diagram of a tensile testing device for glass fiber products.

[0026] Figure 2 This is a left view of a tensile testing device for glass fiber products.

[0027] Figure 3 yes Figure 2 Sectional view at point AA.

[0028] Figure 4 This is a three-dimensional view of the adjustment mechanism in a tensile testing device for glass fiber products.

[0029] Figure 5 This is a three-dimensional view of the support plate and rotation adjustment structure in a tensile testing device for glass fiber products.

[0030] Figure 6 This is a three-dimensional view of the first clamping structure in a tensile testing device for glass fiber products.

[0031] Figure 7 This is a three-dimensional view of the support plate, mounting plate, and tensioning structure in a tensile testing device for glass fiber products.

[0032] Figure 8 This is a three-dimensional diagram of a laser marking line emitter and a visual monitor used in a tensile testing device for glass fiber products.

[0033] Figure 9 This is a three-dimensional diagram of a laser marking line emitter, a visual monitor, and an emitter adjustment structure in a tensile testing device for glass fiber products.

[0034] Figure 10 This is a three-dimensional view of the first rectangular frame, the first rotating shaft, and the swing assembly in a tensile testing device for glass fiber products.

[0035] Figure 11 This is a three-dimensional view of the tensile mechanism in a tensile testing device for glass fiber products.

[0036] Figure 12 This is a three-dimensional view of the mounting plate, the second clamping structure, and the tensile structure in a tensile testing device for glass fiber products.

[0037] The diagram is labeled as follows: 1. Base plate; 11. Support foot; 2. Calibration mechanism; 21. Calibration laser marking line transmitter; 22. Gantry frame; 23. Vision monitor; 24. Transmitter adjustment structure; 241. First rectangular frame; 242. First rotating shaft; 243. Swing assembly; 2431. Transmission plate; 2432. Drive shaft; 2433. First linear actuator; 2434. Second rectangular frame; 2435. First guide column; 3. Adjustment mechanism; 31. Support plate; 32. Rotary adjustment structure; 321. Second rotating shaft; 322. Worm gear transmission structure; 323. Rotary actuator; 33. First clamping structure; 331. Mounting base; 332. Guide roller assembly; 333. Pressure roller assembly. 334. Pressing assembly; 3341. First U-shaped plate; 3342. Pressing plate; 3343. Second guide post; 3344. First spring; 3345. Bolt; 3346. Screw sleeve; 34. Tensioning structure; 341. First guide crossbar; 342. First slider; 343. Second spring; 344. Second linear actuator; 345. First drive plate; 4. Tensioning mechanism; 41. Mounting plate; 42. Second clamping structure; 421. Clamping plate; 422. First scissor-type opening and closing structure; 423. Reinforcing plate; 43. Tensioning structure; 431. Guide structure; 4311. Second U-shaped plate; 4312. Second guide crossbar; 4313. Second slider; 432. Second scissor-type opening and closing structure. Detailed Implementation

[0038] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figures 1 to 12 As shown: A tensile testing device for glass fiber products includes a base plate 1, a calibration mechanism 2, an adjustment mechanism 3, and a tensioning mechanism 4. The base plate 1 is horizontally positioned, and several support legs 11 are provided at its lower end to maintain the base plate 1 in a horizontal state. The calibration mechanism 2 is positioned above the base plate 1 and includes a calibration laser marking line emitter 21. The calibration laser marking line emitter 21 emits straight marking lines to calibrate the fiber direction of the glass fiber product. The calibration laser marking line emitter 21 is mounted on a gantry frame. 22 is mounted above the base plate 1; the adjustment mechanism 3 is mounted on the base plate 1, and the adjustment mechanism 3 includes a support plate 31, a rotary adjustment structure 32 and two first clamping structures 33. The support plate 31 is arranged parallel to the upper end of the base plate 1, and the rotary adjustment structure 32 is arranged at the lower end of the support plate 31. The rotary adjustment structure 32 is used to drive the support plate 31 to rotate around its own central axis. The two first clamping structures 33 are respectively arranged at both ends of the support plate 31; the tensioning mechanism 4 is arranged between the two first clamping structures 33 and is used to perform tensile tests on the glass fiber products.

[0040] The staff sequentially passed one end of the fiberglass product through the first clamping structure 33, the tensioning mechanism 4, and the second clamping structure 33, and clamped both ends with the two clamping structures 33, thus completing the preparation and fixation of the test sample. The calibration laser marking line emitter 21 emitted a straight marking line, projecting it onto the fiberglass product. If the marking line intersected with the fiber filaments on the fiberglass product, it indicated that the direction of the fiber filaments was not parallel to the marking line, i.e., there was a deviation. Then, the rotation adjustment structure 32 started working, driving the support plate 31 to rotate around its own central axis. Since the support plate 31 is connected by the two clamping structures... 33 drives the glass fiber product to rotate together, so the glass fiber product will also rotate around its central axis, adjusting the direction of the fiber filaments on the glass fiber product. When one fiber filament on the glass fiber product is completely aligned with the marking line, the rotation adjustment structure 32 stops working. At this time, it can be considered that all the fiber filaments on the glass fiber product along one direction are parallel to the direction of the force applied by the tensioning mechanism 4. The tensioning mechanism 4 begins to perform a tensile test on the glass fiber product. Since the fiber filaments are parallel to the tensioning direction, the tensile force can act more directly on the fiber filaments, thereby enabling more accurate detection of the tensile properties of the glass fiber product.

[0041] Reference Figure 3 , Figure 4 and Figure 5 As shown: The rotary adjustment structure 32 includes a second rotating shaft 321, a worm gear transmission structure 322, and a rotary driver 323; the second rotating shaft 321 is vertically arranged, one end of the second rotating shaft 321 is connected to the support plate 31, and the other end of the second rotating shaft 321 passes downward through the base plate 1, and the second rotating shaft 321 and the base plate 1 are connected by a bearing; the worm gear transmission structure 322 is located at the lower end of the second rotating shaft 321, the worm wheel is connected to the second rotating shaft 321, and the worm is connected to the rotary driver 323; the rotary driver 323 is connected to the worm gear transmission structure 322.

[0042] The marking lines emitted by the calibration laser marking line emitter 21 are projected onto different glass fiber products. The angle between the marking lines and the fibers on the different glass fiber products is different. Therefore, the support plate 31 needs to be able to rotate to different angles to ensure that the fibers are parallel to the marking lines. By setting a second rotating shaft 321, a worm gear transmission structure 322, and a rotary driver 323, the rotary driver 323 drives the worm to rotate, which in turn drives the worm wheel to rotate, thereby driving the second rotating shaft 321 connected to the worm wheel to rotate. The second rotating shaft 321 drives the support plate 31 to rotate around the axis of the second rotating shaft 321. The worm gear transmission structure 322 has a self-locking capability. When the rotary driver 323 stops working, the friction between the worm wheel and the worm will prevent them from continuing to rotate relative to each other. Therefore, no matter what angle the support plate 31 is rotated to, once the rotary driver 323 stops working, the support plate 31 will immediately stop at that position and will not continue to rotate due to inertia or other external factors. This achieves precise rotation and stopping control of the support plate 31 and the glass fiber products on its upper end.

[0043] Reference Figure 3 , Figure 4 and Figure 6As shown: The first clamping structure 33 includes a mounting base 331, a guide roller assembly 332, a clamping roller assembly 333, and a pressing component 334; the mounting base 331 is mounted on the support plate 31; the guide roller assembly 332 is mounted on the mounting base 331 and has n rollers; the clamping roller assembly 333 is arranged parallel to the upper end of the guide roller assembly 332 and has n-1 rollers. The rollers in the guide roller assembly 332 are arranged alternately with the rollers in the clamping roller assembly 333; the pressing assembly 334 is located at the upper end of the clamping roller assembly 333, and the pressing assembly 334 is used to apply a downward force to the clamping roller assembly 333. The pressing assembly 334 includes a first U-shaped plate 3341, a pressing plate 3342, two second guide posts 3343, two first springs 3344, bolts 3345 and threaded sleeves 3346, and the two ends of the first U-shaped plate 3341 are... The lower pressure plate 3342 is located inside the first U-shaped plate 3341 and connected to the two ends of the mounting base 331. The lower pressure plate 3342 is connected to the pressing roller assembly 333. Two second guide posts 3343 are respectively located at the two ends of the lower pressure plate 3342. One end of the second guide post 3343 is connected to the lower pressure plate 3342, and the other end of the second guide post 3343 passes upward through the first U-shaped plate 3341. Two first springs 3344 are respectively sleeved on the two second guide posts 3343. The two ends of the first springs 3344 abut against the ends of the second guide posts 3343 and the first U-shaped plate 3341, respectively. One end of the bolt 3345 passes through the first U-shaped plate 3341 from top to bottom and abuts against the lower pressure plate 3342. The threaded sleeve 3346 is sleeved on the bolt 3345. The threaded sleeve 3346 is connected to the bolt 3345 and is fixedly connected to the first U-shaped plate 3341.

[0044] When the worker passes the fiberglass product through the first clamping structure 33, the lower surface of the fiberglass product contacts the guide roller assembly 332. As the worker moves the fiberglass product, rolling friction occurs between the fiberglass product and the guide roller assembly 332, preventing scratches on the surface of the fiberglass product. After one end of the fiberglass product passes through the second clamping structure 33, the worker first operates the second clamping structure 33 to clamp one end of the fiberglass product, then operates the first clamping structure 33 to clamp the other end. The worker then rotates the bolt 3345. Under the action of the screw sleeve 3346, the product moves toward the guide roller assembly 332. The bolt 3345 applies a downward force to the lower pressure plate 3342, and the lower pressure plate 3342 pushes the clamping roller assembly 333 toward the guide roller. The clamping roller assembly 333 and the guide roller assembly 332 are staggered. When the lower pressure assembly 334 applies a downward force to the clamping roller assembly 333, the two work together to clamp the fiberglass product, forming a wave-like shape. This increases the contact area between the product and the roller, and also improves the uniformity and stability of the clamping force, thereby effectively preventing the fiberglass product from shifting during the adjustment process.

[0045] Reference Figure 3 , Figure 4 and Figure 7 As shown: The adjustment mechanism 3 also includes a tensioning structure 34, which is disposed inside the support plate 31. The tensioning structure 34 is used to drive the two first clamping structures 33 to move closer or further apart. The tensioning structure 34 includes a first guide bar 341, two first sliders 342, two second springs 343, a second linear actuator 344, and two first drive plates 345. The two ends of the first guide bar 341 are respectively connected to the two ends of the support plate 31. The two first sliders 342 are slidably disposed on the first guide bar 341 and are respectively connected to the two mounting seats 331. The two second springs 343 are respectively sleeved on the two ends of the first guide bar 341, and the two ends of the second springs 343 abut against the ends of the first sliders 342 and the support plate 31, respectively. The second linear actuator 344 is disposed in the middle of the support plate 31, and the two first drive plates 345 are respectively disposed on both sides of the second linear actuator 344. The two ends of the first drive plates 345 are respectively hinged to the first sliders 342 and the second linear actuator 344.

[0046] Two first clamping structures 33 clamp the two ends of the fiberglass product. Due to the weight of the fiberglass product, its length will be greater than the distance between the two first clamping structures 33. The fiberglass product in a bent state will shake under slight external force, making it difficult to determine whether the marking line emitted by the calibration laser marking line emitter 21 coincides with the fiber filaments in the fiberglass product. By setting a tensioning structure 34, the second linear actuator 344 applies a pushing force to the two first drive plates 345. The first drive plates 345 transmit the pushing force to the first slider 342. The force on the first slider 342 will be decomposed into a component force along the axis of the first guide bar 341. This component force pushes the first slider 342 to move along the first guide bar 341, and the two first sliders 342 move away from each other. The two first sliders 342 drive the two first clamping structures 33 to move away from each other, and the two first clamping structures 33 tighten the fiberglass product, making it difficult for the fiberglass product to shake. This makes it easier to observe the positional state between the marking line and the fiber filaments on the fiberglass product.

[0047] Reference Figure 3 and Figure 8 As shown: The calibration mechanism 2 also includes a visual monitor 23. There are two visual monitors 23, which are respectively arranged on both sides of the calibration laser marking line emitter 21, and the connection between the two visual monitors 23 extends to both ends of the support plate 31.

[0048] If the positional state between the marking line and the fiber filaments on the fiberglass product is observed by staff, it is easily affected by various factors such as the staff's perspective, lighting conditions, and fatigue level, leading to subjective and uncertain judgment results. By setting up two visual monitors 23, which are located directly above the marking line and can monitor both ends of the marking line simultaneously, the visual monitors 23 can more accurately determine whether the marking line and the fiber filaments overlap. This achieves more accurate and objective monitoring of the positional state between the marking line and the fiber filaments, improving the accuracy and efficiency of calibration.

[0049] Reference Figure 3 , Figure 9 and Figure 10As shown: The calibration mechanism 2 also includes a transmitter adjustment structure 24, which is located at the upper end of the calibration laser marking line transmitter 21. The transmitter adjustment structure 24 includes a first rectangular frame 241, a first rotating shaft 242, and a swing assembly 243. The first rectangular frame 241 is arranged parallel to the base plate 1. The two ends of the first rotating shaft 242 are respectively axially connected to the two ends of the first rectangular frame 241, and the axis of the first rotating shaft 242 is parallel to the line connecting the two visual monitors 23. The calibration laser marking line transmitter 21 is suspended at the lower end of the first rotating shaft 242, and the calibration laser marking line transmitter 21 rotates synchronously with the first rotating shaft 242. The swing assembly 243 is located at the upper end of the first rotating shaft 242 and is used to drive the first rotating shaft 242 to rotate.

[0050] The intersection of the marking line and the fiber filament may not coincide with the axis of the second rotating shaft 321. The standard fiber filament will deviate from one side of the marking line when rotating, making it difficult to determine whether the fiber filament has rotated to the most favorable position for detection. By setting the emitter adjustment structure 24, the adjustment mechanism 3 first rotates the standard fiber filament to one side of the marking line. Since it is impossible to determine whether the standard fiber filament is parallel to the marking line, the swing component 243 drives the first rotating shaft 242 to rotate. The first rotating shaft 242 drives the calibration laser marking line emitter 21 to translate to one side. If the marking line still has only one intersection with the fiber filament after translation, the adjustment mechanism 3 adjusts the position of the glass fiber product as needed. The swing component 243 drives the marking line to translate as needed until the marking line and the fiber filament are completely aligned. This achieves precise adjustment of the calibration laser marking line emitter 21, allowing the fiber filament to be adjusted to the optimal position.

[0051] Reference Figure 9 and Figure 10 As shown: the swing assembly 243 includes a transmission plate 2431, a drive shaft 2432 and a first linear actuator 2433; one end of the transmission plate 2431 is fixedly connected to the middle of the first rotating shaft 242, and the other end of the transmission plate 2431 is provided with a limiting groove; the drive shaft 2432 is disposed in the limiting groove; the first linear actuator 2433 is mounted on the first rectangular frame 241, and the output end of the first linear actuator 2433 is connected to the drive shaft 2432.

[0052] The first linear actuator 2433 drives the drive shaft 2432 to move horizontally within the limiting slide groove. Since one end of the transmission plate 2431 is fixedly connected to the first rotating shaft 242 and the other end is connected to the drive shaft 2432 through the limiting slide groove, the horizontal movement of the drive shaft 2432 is converted into the rotation of the transmission plate 2431 around the first rotating shaft 242. The drive shaft 2432 can move to different positions inside the limiting slide groove. Each position corresponds to a specific rotation angle of the first rotating shaft 242, which makes the angle adjustment more flexible. The system can adjust the calibration laser marking line emitter 21 to any required angle position as needed, thereby achieving precise angle adjustment of the calibration laser marking line emitter 21.

[0053] Reference Figure 9 and Figure 10 As shown: the swing assembly 243 also includes a second rectangular frame 2434 and two first guide posts 2435; the second rectangular frame 2434 is covered outside the transmission plate 2431, and both ends of the drive shaft 2432 are connected to the second rectangular frame 2434; the two first guide posts 2435 are respectively disposed at both ends of the second rectangular frame 2434, one end of the first guide post 2435 is connected to the second rectangular frame 2434, and the other end of the first guide post 2435 is slidably connected to the first rectangular frame 241.

[0054] The laser marking line emitter 21 and the vision monitor 23 have a large mass. Relying solely on the first linear actuator 2433 to keep the drive shaft 2432 moving horizontally would subject the first linear actuator 2433 to a significant vertical force. By setting up a second rectangular frame 2434 and two first guide structures 431, the first linear actuator 2433 drives the second rectangular frame 2434 to move horizontally. The second rectangular frame 2434 then drives the drive shaft 2432 to move horizontally, which in turn drives the transmission plate 2431 to rotate. Simultaneously, the second rectangular frame 2434 drives the two first guide posts 2435 to move horizontally. The first guide posts 2435 remain slidably connected to the first rectangular frame 241, allowing the reaction force of the transmission plate 2431 on the drive shaft 2432 to be transmitted to the first rectangular frame 241 through the two first guide posts 2435. Therefore, the first linear actuator 2433 does not experience a vertical force.

[0055] Reference Figure 1 , Figure 11 and Figure 12As shown: The tensioning mechanism 4 includes a mounting plate 41, two second clamping structures 42, and a tensioning structure 43. The mounting plate 41 is mounted on the base plate 1. The two second clamping structures 42 are respectively mounted at both ends of the mounting plate 41. Each second clamping structure 42 includes two clamping plates 421, two first scissor-type opening and closing structures 422, and two reinforcing plates 423. The two clamping plates 421 are arranged parallel to each other vertically. The fiberglass product passes between the two clamping plates 421. The two first scissor-type opening and closing structures 422 are respectively mounted at both ends of the clamping plates 421. The first scissor-type opening and closing structures 422 are connected to the same end of the two clamping plates 421, and the two first scissor-type opening and closing structures 422 operate synchronously, simultaneously driving the two clamping plates 421 to move closer or further away from each other. The two reinforcing plates 423 are respectively mounted on the upper and lower sides of the two clamping plates 421, and the two reinforcing plates 423 fix the two first scissor-type opening and closing structures 422 together. The tensioning structure 43 is mounted on both the mounting plate 41 and the base plate 1. Between the two clamping structures 42, the tensioning structure 43 is used to control the distance between the two second clamping structures 42. The tensioning structure 43 includes four guide structures 431 and a second scissor-type opening and closing structure 432. The four guide structures 431 are respectively arranged below the four first scissor-type opening and closing structures 422. The guide structure 431 includes a second U-shaped plate 4311, a second guide crossbar 4312 and a second slider 4313. The second U-shaped plate 4311 is fixed on the mounting plate 41. The two ends of the second guide crossbar 4312 are respectively connected to the two ends of the second U-shaped plate 4311, and the second guide crossbar 4312 is parallel to the first rotating shaft 242. The second slider 4313 is slidably arranged on the second guide crossbar 4312, and the second slider 4313 is connected to the first scissor-type opening and closing structure 422. The second scissor-type opening and closing structure 432 is arranged in the middle of the mounting plate 41 and is connected to the reinforcing plate 423 in the two second clamping structures 42.

[0056] After the position of the fiberglass product is adjusted, since the length of the fiberglass product affects its tensile properties, before the fiberglass product is clamped, the second scissor-type opening and closing structure 432 in the tensile structure 43 first adjusts the distance between the two second clamping structures 42 to ensure that the distance between the two second clamping structures 42 matches the length of the fiberglass product to be tested, which is crucial for ensuring the accuracy of the tensile test. After the distance between the two second clamping structures 42 is adjusted and the fiberglass product is clamped, the second scissor-type opening and closing structure 432 works again. The second scissor-type opening and closing structure 432 drives the two second clamping structures 42 to move away from each other along the second guide bar 4312. The two second clamping structures 42 apply a force to the fiberglass product along the second guide bar 4312, thereby achieving accurate tensile testing of the fiberglass product.

[0057] A testing method for a tensile testing device for glass fiber products includes the following steps:

[0058] S1, first pass the glass fiber product through the first clamping structure 33, the two clamping structures 42 and the second clamping structure 33 in sequence. The two clamping structures 33 clamp a section of glass fiber product, and the worker cuts the section of glass fiber product.

[0059] S2, the tensioning structure 34 tensions the glass fiber product between the two first clamping structures 33 toward both ends, so that the glass fiber product is in a tensioned state.

[0060] S3, the laser marking line emitter 21 is calibrated to emit marking lines, which are projected onto the fiberglass product;

[0061] S4, the rotating adjustment structure 32 rotates the support plate 31, and the support plate 31 drives the glass fiber product to rotate through the two first clamping structures 33, and under the monitoring of the two visual monitors 23, makes a fiber on the glass fiber product completely coincide with the marking line.

[0062] S5, the tensioning structure 43 first adjusts the distance between the two second clamping structures 42 so that the distance between the two second clamping structures 42 matches the length of the glass fiber product to be tested;

[0063] S6, the two second clamping structures 42 clamp the two ends of the glass fiber product, and the stretching structure 43 drives the two second clamping structures 42 to move away from each other until the two second clamping structures 42 break the glass fiber product.

[0064] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A tensile testing device for glass fiber products, characterized in that, It includes a base plate (1), a calibration mechanism (2), an adjustment mechanism (3), and a tensioning mechanism (4); The base plate (1) is set horizontally; The calibration mechanism (2) is set above the base plate (1). The calibration mechanism (2) includes a calibration laser marking line emitter (21), which emits a straight marking line to calibrate the fiber direction of the glass fiber product. The adjustment mechanism (3) is set on the base plate (1). The adjustment mechanism (3) includes a support plate (31), a rotary adjustment structure (32) and two first clamping structures (33). The support plate (31) is set parallel to the upper end of the base plate (1). The rotary adjustment structure (32) is set at the lower end of the support plate (31). The rotary adjustment structure (32) is used to drive the support plate (31) to rotate around its own central axis. The two first clamping structures (33) are respectively set at both ends of the support plate (31). The tensioning mechanism (4) is set between the two first clamping structures (33) for performing tensile tests on glass fiber products; The calibration mechanism (2) also includes a transmitter adjustment structure (24), which sets the upper end of the calibration laser marking line transmitter (21). The transmitter adjustment structure (24) includes a first rectangular frame (241), a first rotating shaft (242), and a swing assembly (243). The first rectangular frame (241) is set parallel to the base plate (1); The two ends of the first rotating shaft (242) are respectively connected to the two ends of the first rectangular frame (241), and the axis of the first rotating shaft (242) is parallel to the line connecting the two visual monitors (23). The calibration laser marking line emitter (21) is suspended at the lower end of the first rotating shaft (242), and the calibration laser marking line emitter (21) rotates synchronously with the first rotating shaft (242). The swing assembly (243) is disposed at the upper end of the first rotating shaft (242), and the swing assembly (243) is used to drive the first rotating shaft (242) to rotate; The swing assembly (243) includes a transmission plate (2431), a drive shaft (2432), and a first linear driver (2433). One end of the transmission plate (2431) is fixedly connected to the middle of the first rotating shaft (242), and a limit groove is provided at the other end of the transmission plate (2431); The drive shaft (2432) is set in the limit slide groove; The first linear driver (2433) is mounted on the first rectangular frame (241), and the output end of the first linear driver (2433) is connected to the drive shaft (2432); The swing assembly (243) also includes a second rectangular frame (2434) and two first guide posts (2435); The second rectangular frame (2434) is covered outside the transmission plate (2431), and both ends of the drive shaft (2432) are connected to the second rectangular frame (2434); Two first guide posts (2435) are respectively set at both ends of the second rectangular frame (2434). One end of the first guide post (2435) is connected to the second rectangular frame (2434), and the other end of the first guide post (2435) is slidably connected to the first rectangular frame (241).

2. The tensile testing device for glass fiber products according to claim 1, characterized in that, The rotary adjustment structure (32) includes a second rotating shaft (321), a worm gear transmission structure (322), and a rotary driver (323). The second rotating shaft (321) is set vertically. One end of the second rotating shaft (321) is connected to the support plate (31), and the other end of the second rotating shaft (321) passes downward through the base plate (1). The second rotating shaft (321) and the base plate (1) are connected by a bearing. The worm gear transmission structure (322) is located at the lower end of the second rotating shaft (321); The rotary actuator (323) is connected to the worm gear transmission structure (322).

3. The tensile testing device for glass fiber products according to claim 1, characterized in that, The first clamping structure (33) includes a mounting base (331), a guide roller assembly (332), a clamping roller assembly (333), and a pressing assembly (334). The mounting base (331) is mounted on the support plate (31); The guide roller assembly (332) is mounted on the mounting base (331) and has n rollers; The pressing roller group (333) is arranged in parallel at the upper end of the guide roller group (332). The pressing roller group (333) has n-1 rollers, and the rollers in the pressing roller group (333) are arranged alternately with the rollers in the guide roller group (332). The pressing assembly (334) is located at the upper end of the pressing roller assembly (333) and is used to apply a downward force to the pressing roller assembly (333).

4. The tensile testing device for glass fiber products according to claim 1, characterized in that, The adjustment mechanism (3) also includes a tensioning structure (34), which is located inside the support plate (31) and is used to drive the two first clamping structures (33) to move closer to or further away from each other.

5. The tensile testing device for glass fiber products according to claim 1, characterized in that, The calibration mechanism (2) also includes two visual monitors (23), which are respectively located on both sides of the calibration laser marking line emitter (21), and the connection between the two visual monitors (23) extends to both ends of the support plate (31).

6. The tensile testing device for glass fiber products according to claim 1, characterized in that, The tensioning mechanism (4) includes a mounting plate (41), two second clamping structures (42) and a tensioning structure (43). The mounting plate (41) is set on the base plate (1); Two second clamping structures (42) are respectively disposed at both ends of the mounting plate (41); The tension structure (43) is disposed between the two second clamping structures (42) and is used to control the distance between the two second clamping structures (42).

7. A testing method for a tensile testing device for glass fiber products, employing the tensile testing device for glass fiber products as described in any one of claims 1-6, characterized in that, Includes the following steps: S1, first pass the glass fiber product through the first clamping structure (33), the two clamping structures (42) and the second clamping structure (33) in sequence. The two clamping structures (33) clamp a section of glass fiber product, and the worker cuts the section of glass fiber product. S2, the tensioning structure (34) tensions the glass fiber product between the two first clamping structures (33) toward both ends, so that the glass fiber product is in a tensioned state; S3, calibrate the laser marking line emitter (21) to emit marking lines, which are projected onto the glass fiber product; S4, the rotating adjustment structure (32) rotates the support plate (31). The support plate (31) drives the glass fiber product to rotate through two first clamping structures (33), and under the monitoring of two vision monitors (23), a fiber filament on the glass fiber product is completely aligned with the marking line. S5, the tensioning structure (43) first adjusts the distance between the two second clamping structures (42) so that the distance between the two second clamping structures (42) matches the length of the glass fiber product to be tested; S6, the two second clamping structures (42) clamp the two ends of the glass fiber product, and the stretching structure (43) drives the two second clamping structures (42) to move away from each other until the two second clamping structures (42) break the glass fiber product.

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