A device for detecting the tensile strength of a finished glass fiber product

Abstract

The present invention discloses a device for detecting the tensile strength of glass fiber finished products, which relates to the technical field of tensile strength and includes: a detection table, a driving device is arranged on the inner wall of the detection table, and a support plate is fixedly installed on the top of the driving device; a clamping device, the clamping device is arranged on the top of the support plate, and the clamping device includes a fixed rod, a linear motor, a pressing plate, a tensile force sensor, a clamping block, a pushing block, a rotating block, a short rod, a sliding block and a pressing block. By placing both ends of the glass fiber sample on two support plates and starting the linear motor to move downward, the downward movement of the linear motor will drive the pressing plate to move downward, the downward movement of the pressing plate will drive the clamping block to move downward, and the downward movement of the clamping block will clamp the glass fiber sample. The fixed rod is on the top of the support plate, and the glass fiber is clamped by the upward movement of the pressing block, improving the stability during clamping and preventing sudden loosening during stretching, which affects the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile strength, and particularly to a device for detecting the tensile strength of glass fiber prepared finished products. Background Art

[0002] Tensile strength refers to the maximum stress that glass fiber can withstand under the action of tensile force. During the test, the glass fiber sample is clamped in two fixtures of a tensile testing machine, and then a tensile force is applied until the sample breaks. By measuring the applied force and the strain at the break of the glass fiber, its tensile strength can be calculated.

[0003] The patent with the patent publication number CN217717285U relates to a device for detecting the tensile strength of glass fiber cloth production, including a base and a pushing mechanism. The pushing mechanism is installed above the base to provide a test tensile force for the glass fiber cloth. A fixed seat is arranged above the base, and a movable seat is arranged on the right side of the fixed seat. The movable seat is connected to the pushing mechanism, and the movement of the movable seat is controlled by the pushing mechanism. Winding rollers are arranged above both the fixed seat and the movable seat, and a mounting shaft is fixed in the middle of the winding roller. The device for detecting the tensile strength of glass fiber cloth production can wind the end of the glass fiber cloth by rotating the winding roller to fix it. Subsequently, by cooperating with the connection of the limiting rod and the second limiting groove to limit the rotation of the winding roller, the fixation of the glass fiber cloth can be realized, so that it can be subjected to a uniform tensile force subsequently, ensuring the limiting stability of the end of the glass fiber cloth and improving the subsequent detection efficiency.

[0004] In the above patent, the end of the glass fiber cloth can be wound and fixed by rotating the winding roller. Subsequently, by cooperating with the connection of the limiting rod and the second limiting groove to limit the rotation of the winding roller, the fixation of the glass fiber cloth can be realized, so that it can be subjected to a uniform tensile force subsequently, ensuring the limiting stability of the end of the glass fiber cloth and improving the subsequent detection efficiency. However, during the detection process, the end of the glass fiber cloth may be clamped, which may cause it to break away during the pulling process, affecting the detection effect of the tensile strength. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a device for detecting the tensile strength of glass fiber prepared finished products, which solves the problems put forward in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A device for detecting the tensile strength of a glass fiber preparation finished product, comprising: a detection table, a driving device is arranged on the inner wall of the detection table, and a support plate is fixedly installed on the top of the driving device; a clamping device, the clamping device is arranged on the top of the support plate, the clamping device includes a fixed rod, a linear motor, a pressing plate, a tensile force sensor, a clamping block, a pushing block, a rotating block, a short rod, a sliding block and an extrusion block. By placing both ends of the glass fiber sample on two support plates and starting the linear motor to move downward, the downward movement of the linear motor will drive the pressing plate to move downward, the downward movement of the pressing plate will drive the clamping block to move downward, and the downward movement of the clamping block will clamp the glass fiber sample. The fixed rod is fixedly installed on the top of the support plate, the linear motor is fixedly installed on the surface of the support plate, the pressing plate is fixedly installed at the output end of the linear motor, the tensile force sensor is arranged on the top of the pressing plate, the clamping block is fixedly installed at the bottom of the pressing plate, the pushing block is fixedly installed on the surface of the pressing plate, the rotating block is rotatably installed on the surface of the support plate, the short rod is fixedly installed on the surface of the rotating block, the sliding block is slidably installed on the surface of the support plate, and the extrusion block is fixedly installed on the surface of the sliding block. The downward movement of the pressing plate will drive the pushing block to move downward, the downward movement of the pushing block will push the rotating block to rotate downward, the downward rotation of the rotating block will drive the short rod to rotate upward, the upward rotation of the short rod will push the sliding block to move upward, and the upward movement of the sliding block will drive the extrusion block to move upward.

[0007] According to the above technical solution, a first torsion spring is arranged between the rotating block and the support plate, and the rotating block is driven to reset by the first torsion spring. A first spring is arranged between the sliding block and the support plate, and the sliding block is driven to reset by the first spring.

[0008] According to the above technical solution, a protection device for protecting workers and an observation device for observing the surface of the product are arranged on the rotating block. The protection device includes a connecting block, a connecting plate and a pulley. By the downward rotation of the rotating block, the connecting block is driven to rotate upward, the upward rotation of the connecting block will push the connecting plate to move upward, and the upward movement of the connecting plate will drive the pulley to move upward. The connecting block is fixedly installed on the surface of the rotating block, the connecting plate is slidably installed on the surface of the support plate, and the pulley is rotatably installed on the surface of the connecting plate.

[0009] According to the above technical solution, an L-shaped plate is fixedly installed at the bottom of the connecting plate. A roller is rotatably installed at one end of the L-shaped plate away from the connecting plate. A chute is opened on the surface of the detection table, and a sliding plate is slidably installed on the inner wall of the chute. A fixing plate is fixedly installed on the surface of the sliding plate close to the roller. The upward movement of the connecting plate will drive the L-shaped plate to move upward, the upward movement of the L-shaped plate will drive the roller to move upward, the upward movement of the roller will push the fixing plate to move upward, and the upward movement of the fixing plate will drive the sliding plate to move upward.

[0010] According to the above technical solution, a second spring is arranged between the connecting plate and the support plate, and the connecting plate is driven to reset by the second spring. A third spring is arranged between the sliding groove and the sliding plate, and the sliding plate is driven to reset by the third spring.

[0011] According to the above technical solution, the observation device includes a rotating rod, a fixed block, a fixed frame, a sliding plate and an infrared detection device. When the connecting plate moves upward, the rotating rod is driven to move upward. When the rotating rod moves upward, the fixed block is pulled to move towards the support plate. When the fixed block moves towards the support plate, the sliding plate is driven to move towards the support plate. The rotating rod is rotatably installed on the side of the connecting plate away from the roller. The fixed frame is fixedly installed on the surface of the support plate. The sliding plate is slidably installed on the top of the fixed frame. The fixed block is fixedly installed on the top of the sliding plate. One end of the rotating rod away from the connecting plate is rotatably installed on the surface of the fixed block. The infrared detection device is arranged on the inner wall of the fixed frame, and a collection groove is opened inside the fixed frame.

[0012] According to the above technical solution, an elastic telescopic plate is fixedly installed at the bottom of the sliding plate. A brush is arranged at the free end of the elastic telescopic plate. A guiding groove is opened on the inner wall of the fixed frame. A sliding rod is fixedly installed at the free end of the elastic telescopic plate. The sliding rod is slidably installed on the inner wall of the guiding groove. A rotating plate is rotatably installed on the inner wall of the guiding groove. When the sliding rod moves to the end of the guiding groove away from the rotating plate, the loss of the extrusion of the guiding groove will cause the sliding rod to reset under the elastic force of the elastic telescopic plate itself. At the same time, when the sliding plate is detected to reset.

[0013] According to the above technical solution, a fourth spring is arranged between the sliding plate and the fixed frame, and the sliding plate is driven to reset by the fourth spring. A second torsion spring is arranged between the rotating plate and the guiding groove, and the rotating plate is driven to reset by the second torsion spring.

[0014] The present invention provides a device for detecting the tensile strength of glass fiber preparation products. It has the following beneficial effects:

[0015] (1) In this invention, when the clamping block moves downward, the glass fiber sample is clamped. Then, the driving device drives the support plates to move away from each other to apply a tensile force until the sample breaks. By measuring the applied force and the strain at the time of fracture of the glass fiber, the tensile strength is calculated through the tensile force sensor. At the same time, when the sliding block moves upward, the extrusion block is driven to move upward, and the glass fiber is clamped by the upward movement of the extrusion block, improving the stability during clamping and preventing sudden loosening during stretching, which affects the detection efficiency.

[0016] (2) In this invention, when the connecting plate moves upward, it drives the pulley to move upward. When the pulley moves upward, it contacts the fiberglass, preventing the fiberglass from rubbing on the support plate during stretching, which may cause the fiberglass to break due to friction during stretching and affect the detection effect. At the same time, when the roller moves upward, it pushes the fixing plate upward, and when the fixing plate moves upward, it drives the sliding plate to move upward. The rising of the sliding plate protects the operator, preventing the fiberglass from directly hitting the tester when it breaks during pulling, which may cause injury to the tester and pose a safety hazard.

[0017] (3) In this invention, the infrared detection device observes the state of the fiberglass during stretching, and identifies these defects through the difference in thermal reflection, which is convenient for improving the product. When not in use, the skateboard resets and seals the infrared detection device in the fixed frame, preventing the infrared detection device from being damaged due to long-term contact with moisture in the air. When the extrusion of the guiding groove is lost, the sliding rod resets under the elastic force of the elastic telescopic plate itself. At the same time, when the skateboard resets after detection, the brush at the free end of the elastic telescopic plate will push the impurities above the infrared detection device that fall during stretching into the collection groove, preventing the impurities from affecting the detection of the infrared detection device. Brief Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the overall sectional structure of the present invention;

[0020] Figure 3 Schematic diagram of the clamping device structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure of part A in;

[0022] Figure 5 Schematic diagram of the protection device structure of the present invention;

[0023] Figure 6 Schematic diagram of the sectional structure of the fixed frame of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure of part B in;

[0025] Figure 8 Schematic diagram of the overall structure of the guiding groove of the present invention.

[0026] In the figure: 1, detection table; 2, driving device; 3, support plate; 4, fixed rod; 5, linear motor; 6, pressing plate; 7, tension sensor; 8, clamping block; 9, pushing block; 10, rotating block; 11, short rod; 12, sliding block; 13, extrusion block; 141, connecting block; 142, connecting plate; 143, pulley; 144, L-shaped plate; 145, roller; 146, sliding plate; 147, fixing plate; 151, rotating rod; 152, fixing block; 153, fixing frame; 154, sliding plate; 155, infrared detection device; 156, elastic telescopic plate; 157, guiding groove; 158, sliding rod; 159, rotating plate. Specific implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-4 , an embodiment of the present invention is: a device for detecting the tensile strength of glass fiber preparation finished products, including: a detection table 1, a driving device 2 is arranged on the inner wall of the detection table 1, and a support plate 3 is fixedly installed on the top of the driving device 2; a clamping device, the clamping device is arranged on the top of the support plate 3, and the clamping device includes a fixed rod 4, a linear motor 5, a pressing plate 6, a tension sensor 7, a clamping block 8, a pushing block 9, a rotating block 10, a short rod 11, a sliding block 12 and an extrusion block 13. By driving the support plate 3 to move away from each other by the driving device 2 to apply a tensile force until the sample breaks, by measuring the applied force and the strain at the time of fracture of the glass fiber, the tensile strength is calculated through the tension sensor 7. The fixed rod 4 is fixedly installed on the top of the support plate 3, the linear motor 5 is fixedly installed on the surface of the support plate 3, the pressing plate 6 is fixedly installed at the output end of the linear motor 5, the tension sensor 7 is arranged on the top of the pressing plate 6, the clamping block 8 is fixedly installed at the bottom of the pressing plate 6, the pushing block 9 is fixedly installed on the surface of the pressing plate 6, the rotating block 10 is rotatably installed on the surface of the support plate 3, the short rod 11 is fixedly installed on the surface of the rotating block 10, the sliding block 12 is slidably installed on the surface of the support plate 3, and the extrusion block 13 is fixedly installed on the surface of the sliding block 12. The glass fiber is clamped by the upward movement of the extrusion block 13 to improve the stability during clamping and prevent sudden loosening during stretching, affecting the detection efficiency.

[0029] A first torsion spring is arranged between the rotating block 10 and the support plate 3, and the rotating block 10 is driven to reset by the first torsion spring. A first spring is arranged between the sliding block 12 and the support plate 3, and the sliding block 12 is driven to reset by the first spring.

[0030] During the operation of this embodiment: By placing both ends of the glass fiber sample on two support plates 3, start the linear motor 5 to move downward. The downward movement of the linear motor 5 will drive the pressure plate 6 to move downward. The downward movement of the pressure plate 6 will drive the clamping block 8 to move downward. The downward movement of the clamping block 8 will clamp the glass fiber sample. Then, drive the support plates 3 to move away from each other by the driving device 2 to apply a tensile force until the sample breaks. By measuring the applied force and the strain at the time of fracture of the glass fiber, the tensile strength is calculated by the tensile force sensor 7. At the same time, the downward movement of the pressure plate 6 will drive the push block 9 to move downward. The downward movement of the push block 9 will push the rotating block 10 to rotate downward. The downward rotation of the rotating block 10 will drive the short rod 11 to rotate upward. The upward rotation of the short rod 11 will push the sliding block 12 to move upward. The upward movement of the sliding block 12 will drive the extrusion block 13 to move upward. The glass fiber is clamped by the upward movement of the extrusion block 13 to improve the stability during clamping and prevent sudden loosening during stretching, which affects the detection efficiency.

[0031] Please refer to Figures 1-8 , on the basis of the above embodiment, in another embodiment of the present invention, a protection device for protecting workers and an observation device for observing the surface of the product are provided on the rotating block 10. The protection device includes a connecting block 141, a connecting plate 142, and a pulley 143. The connecting block 141 is fixedly installed on the surface of the rotating block 10. The connecting plate 142 is slidably installed on the surface of the support plate 3. The pulley 143 is rotatably installed on the surface of the connecting plate 142, preventing the glass fiber from rubbing on the support plate 3 during stretching, resulting in the glass fiber being broken due to friction during stretching and affecting the detection effect.

[0032] An L-shaped plate 144 is fixedly installed at the bottom of the connecting plate 142. A roller 145 is rotatably installed at one end of the L-shaped plate 144 away from the connecting plate 142. A chute is formed on the surface of the detection table 1. A sliding plate 146 is slidably installed on the inner wall of the chute. A fixing plate 147 is fixedly installed on the side of the sliding plate 146 close to the roller 145. The operator is protected by the upward movement of the sliding plate 146, preventing the glass fiber from directly hitting the detection personnel when it is pulled and broken, causing injury to the detection personnel and posing a safety hazard.

[0033] A second spring is provided between the connecting plate 142 and the support plate 3 to drive the connecting plate 142 to reset by the second spring. A third spring is provided between the chute and the sliding plate 146 to drive the sliding plate 146 to reset by the third spring.

[0034] The observation device includes a rotating rod 151, a fixed block 152, a fixed frame 153, a sliding plate 154, and an infrared detection device 155. The rotating rod 151 is rotatably installed on the side of the connecting plate 142 away from the roller 145. The fixed frame 153 is fixedly installed on the surface of the support plate 3. The sliding plate 154 is slidably installed on the top of the fixed frame 153. The fixed block 152 is fixedly installed on the top of the sliding plate 154. One end of the rotating rod 151 away from the connecting plate 142 is rotatably installed on the surface of the fixed block 152. The infrared detection device 155 is arranged on the inner wall of the fixed frame 153. A collection groove is formed inside the fixed frame 153. The state of the glass fiber during stretching is observed through the infrared detection device 155, and these defects are identified through the thermal reflection difference, which is convenient for improving the product.

[0035] An elastic telescopic plate 156 is fixedly installed at the bottom of the sliding plate 154. A brush is arranged at the free end of the elastic telescopic plate 156. A guide groove 157 is formed on the inner wall of the fixed frame 153. A sliding rod 158 is fixedly installed at the free end of the elastic telescopic plate 156. The sliding rod 158 is slidably installed on the inner wall of the guide groove 157. A rotating plate 159 is rotatably installed on the inner wall of the guide groove 157. The brush at the free end of the elastic telescopic plate 156 will push the impurities above the infrared detection device 155 that fall during stretching into the collection groove, preventing the impurities from affecting the detection of the infrared detection device 155.

[0036] A fourth spring is arranged between the sliding plate 154 and the fixed frame 153 to drive the sliding plate 154 to reset through the fourth spring. A second torsion spring is arranged between the rotating plate 159 and the guide groove 157 to drive the rotating plate 159 to reset through the second torsion spring.

[0037] When this embodiment works: The rotation of the rotating block 10 downward drives the connecting block 141 to rotate upward. The upward rotation of the connecting block 141 will push the connecting plate 142 to move upward. The upward movement of the connecting plate 142 will drive the pulley 143 to move upward. The upward movement of the pulley 143 will contact the glass fiber, preventing the glass fiber from rubbing on the support plate 3 during stretching, resulting in the glass fiber being broken due to friction during stretching and affecting the detection effect. At the same time, the upward movement of the connecting plate 142 will drive the L-shaped plate 144 to move upward. The upward movement of the L-shaped plate 144 will drive the roller 145 to move upward. The upward movement of the roller 145 will push the fixing plate 147 to move upward. The upward movement of the fixing plate 147 will drive the sliding plate 146 to move upward, protecting the operator through the upward movement of the sliding plate 146, preventing the glass fiber from directly bouncing onto the detection personnel when it breaks during pulling, causing injury to the detection personnel and posing a safety hazard.

[0038] The upward movement of the connecting plate 142 drives the rotating rod 151 to move upward. The upward movement of the rotating rod 151 will pull the fixed block 152 to move towards the support plate 3. The movement of the fixed block 152 towards the support plate 3 will drive the sliding plate 154 to move towards the support plate 3. The movement of the sliding plate 154 towards the support plate 3 will cause the top of the fixed frame 153 to open. The infrared detection device 155 is used to observe the state of the glass fiber during stretching, and these defects are identified through the difference in thermal reflection, which is convenient for improving the product. At the same time, when not in use, the reset of the sliding plate 154 will seal the infrared detection device 155 in the fixed frame 153, preventing the infrared detection device 155 from being in contact with the moisture in the air for a long time, resulting in damage to the infrared detection device 155 and a decrease in its service life. At the same time, the movement of the sliding plate 154 towards the support plate 3 will drive the elastic telescopic plate 156 to move towards the support plate 3. The movement of the elastic telescopic plate 156 towards the support plate 3 will drive the sliding rod 158 to move upward along the rotating plate 159. The upward movement of the sliding rod 158 will drive the free end of the elastic telescopic plate 156 to contract, causing the sliding rod 158 to slide above the guide groove 157. When the sliding rod 158 moves to the end of the guide groove 157 away from the rotating plate 159, the extrusion of the guide groove 157 is lost, and the sliding rod 158 will reset under the elastic force of the elastic telescopic plate 156 itself. At the same time, when the sliding plate 154 resets after detection, the brush at the free end of the elastic telescopic plate 156 will push the impurities above the infrared detection device 155 that fall during stretching into the collection groove, preventing the impurities from affecting the detection of the infrared detection device 155.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile strength testing device for finished glass fiber products, characterized in that: Including: A detection table (1), on the inner wall of the detection table (1) there is a driving device (2), and on the top of the driving device (2) there is a support plate (3) fixedly installed; A clamping device, the clamping device is arranged on the top of the support plate (3), the clamping device includes a fixed rod (4), a linear motor (5), a pressing plate (6), a tension sensor (7), a clamping block (8), a pushing block (9), a rotating block (10), a short rod (11), a sliding block (12) and an extrusion block (13), the fixed rod (4) is fixedly installed on the top of the support plate (3), the linear motor (5) is fixedly installed on the surface of the support plate (3), the pressing plate (6) is fixedly installed at the output end of the linear motor (5), the tension sensor (7) is arranged on the top of the pressing plate (6), the clamping block (8) is fixedly installed at the bottom of the pressing plate (6), the pushing block (9) is fixedly installed on the surface of the pressing plate (6), the rotating block (10) is rotatably installed on the surface of the support plate (3), the short rod (11) is fixedly installed on the surface of the rotating block (10), the sliding block (12) is slidably installed on the surface of the support plate (3), and the extrusion block (13) is fixedly installed on the surface of the sliding block (12); Wherein, on the rotating block (10) there is a protection device for protecting workers and an observation device for observing the surface of the product.

2. The tensile strength testing device for a finished glass fiber product according to claim 1, characterized in that: There is a first torsion spring between the rotating block (10) and the support plate (3), and a first spring between the sliding block (12) and the support plate (3).

3. The tensile strength detection device for the finished product of glass fiber preparation according to claim 2, characterized in that: The protection device includes a connecting block (141), a connecting plate (142) and a pulley (143), the connecting block (141) is fixedly installed on the surface of the rotating block (10), the connecting plate (142) is slidably installed on the surface of the support plate (3), and the pulley (143) is rotatably installed on the surface of the connecting plate (142).

4. The tensile strength testing device for finished glass fiber products according to claim 3, characterized in that: At the bottom of the connecting plate (142) there is an L-shaped plate (144) fixedly installed, at the end of the L-shaped plate (144) away from the connecting plate (142) there is a roller (145) rotatably installed, on the surface of the detection table (1) there is a chute, and on the inner wall of the chute there is a sliding plate (146) slidably installed, and on the side of the sliding plate (146) close to the roller (145) there is a fixing plate (147) fixedly installed.

5. The device for detecting tensile strength of finished glass fiber products according to claim 4, characterized in that: There is a second spring between the connecting plate (142) and the support plate (3), and a third spring between the chute and the sliding plate (146).

6. The tensile strength detection device for the finished product of glass fiber preparation according to claim 5, wherein: The observation device comprises a rotating rod (151), a fixed block (152), a fixed frame (153), a slide plate (154) and an infrared detection device (155), wherein the rotating rod (151) is rotatably mounted on a side of the connecting plate (142) away from the roller (145), the fixed frame (153) is fixedly mounted on the surface of the support plate (3), the slide plate (154) is slidably mounted on the top of the fixed frame (153), the fixed block (152) is fixedly mounted on the top of the slide plate (154), one end of the rotating rod (151) away from the connecting plate (142) is rotatably mounted on the surface of the fixed block (152), the infrared detection device (155) is arranged on the inner wall of the fixed frame (153), and a collecting tank is opened inside the fixed frame (153).

7. The device for detecting tensile strength of finished glass fiber products according to claim 6, characterized in that: An elastic telescopic plate (156) is fixedly mounted on the bottom of the slide plate (154), a brush is provided on the free end of the elastic telescopic plate (156), a guide groove (157) is provided on the inner wall of the fixed frame (153), a sliding rod (158) is fixedly mounted on the free end of the elastic telescopic plate (156), the sliding rod (158) is slidably mounted on the inner wall of the guide groove (157), and a rotating plate (159) is rotatably mounted on the inner wall of the guide groove (157).

8. An apparatus for detecting the tensile strength of a finished product prepared from glass fibers according to claim 7, characterized in that: A No. 4 spring is provided between the slide plate (154) and the fixed frame (153), and a No. 2 torsion spring is provided between the rotating plate (159) and the guide groove (157).

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