Device for detecting tensile strength of finished product prepared from glass fibers

Abstract

The invention discloses a tensile strength detection device for a finished product prepared from glass fibers, and relates to the technical field of tensile strength, the tensile strength detection device comprises a detection table, the inner wall of the detection table is provided with a driving device, and the top of the driving device is fixedly provided with a supporting plate; the clamping device is arranged at the tops of the supporting plates, and the clamping device comprises a fixing rod, a linear motor, a pressing plate, a tension sensor, a clamping block, a pushing block, a rotating block, a short rod, a sliding block and an extrusion block. A linear motor moves downwards to drive a pressing plate to move downwards, the pressing plate moves downwards to drive a clamping block to move downwards, the clamping block moves downwards to clamp a glass fiber sample, a fixing rod supports the top of the plate, and an extrusion block moves upwards to clamp glass fibers, so that the stability during clamping is improved, sudden loosening during stretching is prevented, and the clamping efficiency is improved. The detection efficiency is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of tensile strength, in particular to a tensile strength detection device for a finished glass fiber product. Background Art

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

[0003] The patent with patent announcement number CN217717285U relates to a tensile strength detection device for glass fiber cloth production, including a base and a pushing mechanism, wherein the pushing mechanism is installed above the base to provide a test tension 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, a cloth winding roller is arranged above the fixed seat and above the movable seat, and a mounting shaft is fixed to the middle of the cloth winding roller, and the tensile strength detection device for glass fiber cloth production can wind the end of the glass fiber cloth and fix it by rotating the cloth winding roller, and subsequently cooperate with the connection of the limit rod and the second limit groove to limit the rotation of the cloth winding roller, so as to realize the fixation of the glass fiber cloth, so that it can be subjected to uniform tension subsequently, ensure the limiting stability of the end of the glass fiber cloth, and improve the subsequent detection efficiency.

[0004] In the above patent, the end of the glass fiber cloth can be wound and fixed by rotating the cloth winding roller, and then the rotation of the cloth winding roller is limited by the connection of the limiting rod and the second limiting groove, so that the glass fiber cloth can be fixed, so that it can be subjected to uniform tension 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 detachment during the pulling process and affect the detection effect of the tensile strength. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for detecting the tensile strength of a finished glass fiber product, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tensile strength testing device for finished glass fiber products, comprising: a testing platform, a driving device is arranged on the inner wall of the testing platform, a supporting plate is fixedly installed on the top of the driving device; a clamping device is arranged on the top of the supporting plate, and the clamping device comprises a fixed rod, a linear motor, a pressure plate, a tension sensor, a clamping block, a push 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 supporting plates, starting the linear motor to move downward, the downward movement of the linear motor will drive the pressure plate to move downward, the downward movement of the pressure plate will drive the clamping block to move downward, the downward movement of the clamping block will clamp the glass fiber sample, and the fixed The rod is fixedly mounted on the top of the support plate, the linear motor is fixedly mounted on the surface of the support plate, the pressure plate is fixedly mounted on the output end of the linear motor, the tension sensor is arranged on the top of the pressure plate, the clamping block is fixedly mounted on the bottom of the pressure plate, the push block is fixedly mounted on the surface of the pressure plate, the rotating block is rotatably mounted on the surface of the support plate, the short rod is fixedly mounted on the surface of the rotating block, the sliding block is slidably mounted on the surface of the support plate, and the extrusion block is fixedly mounted on the surface of the sliding block. The downward movement of the pressure plate will drive the push block to move downward, the downward movement of the push 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 No. 1 torsion spring is arranged between the rotating block and the support plate, and the rotating block is driven to reset by the No. 1 torsion spring. A No. 1 spring is arranged between the sliding block and the support plate, and the sliding block is driven to reset by the No. 1 spring.

[0008] According to the above technical solution, a protective device for protecting workers and an observation device for observing the surface of the product are provided on the rotating block, and the protective device includes a connecting block, a connecting plate and a pulley. The connecting block is driven to rotate upward by the rotating block rotating downward, and the connecting block rotates upward to push the connecting plate to move upward, and the connecting plate moves upward to 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 sliding groove is opened on the surface of the detection platform, a sliding plate is slidably installed on the inner wall of the sliding groove, and a fixed plate is fixedly installed on a side 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 fixed plate to move upward, and the upward movement of the fixed plate will drive the sliding plate to move upward.

[0010] According to the above technical solution, a No. 2 spring is arranged between the connecting plate and the supporting plate, and the No. 2 spring drives the connecting plate to reset. A No. 3 spring is arranged between the sliding groove and the sliding plate, and the No. 3 spring drives the sliding plate to reset.

[0011] According to the above technical scheme, the observation device includes a rotating rod, a fixed block, a fixed frame, a slide plate and an infrared detection device. The rotating rod is driven to move upward by the upward movement of the connecting plate. The upward movement of the rotating rod will pull the fixed block to move in the direction close to the support plate. The movement of the fixed block in the direction close to the support plate will drive the slide plate to move in the direction close to 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 slide plate is slidably installed on the top of the fixed frame, the fixed block is fixedly installed on the top of the slide plate, the 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 retractable plate is fixedly installed at the bottom of the skateboard, a brush is provided at the free end of the elastic retractable plate, a guide groove is opened on the inner wall of the fixed frame, a sliding rod is fixedly installed at the free end of the elastic retractable plate, the sliding rod is slidably installed on the inner wall of the guide groove, and a rotating plate is rotatably installed on the inner wall of the guide groove. When the sliding rod moves to the end of the guide groove away from the rotating plate, the loss of the extrusion of the guide groove will cause the sliding rod to reset under the elastic force of the elastic retractable plate itself, and the skateboard is reset when the detection is completed.

[0013] According to the above technical solution, a No. 4 spring is arranged between the slide plate and the fixed frame, and the slide plate is reset by the No. 4 spring. A No. 2 torsion spring is arranged between the rotating plate and the guide groove, and the rotating plate is reset by the No. 2 torsion spring.

[0014] The present invention provides a device for detecting the tensile strength of a finished glass fiber product. It has the following beneficial effects: (1) In the present invention, the glass fiber sample is clamped by the downward movement of the clamping block, and the supporting plates are driven by the driving device to move in opposite directions to apply tensile force until the sample breaks. The tensile strength of the glass fiber is calculated by measuring the applied force and the strain of the glass fiber when it breaks through the tension sensor. At the same time, the upward movement of the sliding block drives the extrusion block to move upward, and the glass fiber is clamped by the upward movement of the extrusion block, thereby improving the stability of the clamping and preventing sudden loosening during stretching, which affects the detection efficiency.

[0015] (2) In this invention, the upward movement of the connecting plate will drive the pulley upward, and the upward movement of the pulley will contact the glass fiber, preventing the glass fiber from rubbing against the support plate during stretching, which will cause the glass fiber to break due to friction during stretching, affecting the detection effect. At the same time, the upward movement of the roller will push the fixed plate upward, and the upward movement of the fixed plate will drive the sliding plate upward. The rising sliding plate protects the operator and prevents the glass fiber from jumping directly onto the inspector when it is pulled and broken, causing injury to the inspector, posing a safety hazard.

[0016] (3) This invention uses an infrared detection device to observe the state of the glass fiber during stretching, and identifies these defects through the difference in heat reflection, which is convenient for improving the product. When not in use, the reset of the slide plate will seal the infrared detection device in the fixed frame to prevent the infrared detection device from being in contact with moisture in the air for a long time, which may cause damage to the infrared detection device. When the extrusion of the guide groove is lost, the sliding rod will reset under the elastic force of the elastic telescopic plate itself. At the same time, when the slide plate is reset after the detection, the brush at the free end of the elastic telescopic plate will push the impurities above the infrared detection device that fell during stretching into the collection groove to prevent the impurities from affecting the detection of the infrared detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping device of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A; Figure 5 It is a schematic diagram of the structure of the protection device of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of part B in the middle is enlarged; Figure 8 It is a schematic diagram of the overall structure of the guide groove of the present invention.

[0018] In the figure: 1. detection table; 2. driving device; 3. support plate; 4. fixing rod; 5. linear motor; 6. pressure plate; 7. tension sensor; 8. clamping block; 9. push 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. guide groove; 158. sliding rod; 159. rotating plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 4 One embodiment of the present invention is: a tensile strength testing device for a finished glass fiber product, comprising: a testing platform 1, a driving device 2 is arranged on the inner wall of the testing platform 1, 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, the clamping device comprises a fixed rod 4, a linear motor 5, a pressure plate 6, a tension sensor 7, a clamping block 8, a push block 9, a rotating block 10, a short rod 11, a sliding block 12 and an extrusion block 13, the driving device 2 drives the support plate 3 to move in opposite directions to apply a tensile force until the sample breaks, and by measuring the applied force and the strain of the glass fiber when it breaks, the tensile sensor 7 calculates its tensile strength. Tensile strength, the fixed rod 4 is fixedly mounted on the top of the support plate 3, the linear motor 5 is fixedly mounted on the surface of the support plate 3, the pressure plate 6 is fixedly mounted on the output end of the linear motor 5, the tension sensor 7 is arranged on the top of the pressure plate 6, the clamping block 8 is fixedly mounted on the bottom of the pressure plate 6, the push block 9 is fixedly mounted on the surface of the pressure plate 6, the rotating block 10 is rotatably mounted on the surface of the support plate 3, the short rod 11 is fixedly mounted on the surface of the rotating block 10, the sliding block 12 is slidably mounted on the surface of the support plate 3, and the extrusion block 13 is fixedly mounted on the surface of the sliding block 12. The glass fiber is clamped by moving the extrusion block 13 upward to improve the stability during clamping and prevent sudden loosening during stretching, which affects the detection efficiency.

[0021] A first torsion spring is arranged between the rotating block 10 and the supporting 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 supporting plate 3, and the sliding block 12 is driven to reset by the first spring.

[0022] When this embodiment is working: by placing the two ends of the glass fiber sample on the two support plates 3, starting 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, and then the driving device 2 will drive the support plates 3 to move in opposite directions to apply tensile force until the sample breaks, by measuring the applied force and the strain of the glass fiber when it breaks, the tensile strength is calculated by the tension sensor 7, and 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, the stability during clamping is improved, and sudden loosening during stretching is prevented, which affects the detection efficiency.

[0023] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, a protective device for protecting workers and an observation device for observing the surface of the product are provided on the rotating block 10, and the protective device includes a connecting block 141, a connecting plate 142 and a pulley 143. The connecting block 141 is fixedly mounted on the surface of the rotating block 10, the connecting plate 142 is slidably mounted on the surface of the support plate 3, and the pulley 143 is rotatably mounted on the surface of the connecting plate 142 to prevent the glass fiber from rubbing on the support plate 3 during stretching, which causes the glass fiber to break due to friction during stretching, thereby affecting the detection effect.

[0024] An L-shaped plate 144 is fixedly installed at the bottom of the connecting plate 142, and a roller 145 is rotatably installed on the end of the L-shaped plate 144 away from the connecting plate 142. A slide groove is provided on the surface of the testing platform 1, and a sliding plate 146 is slidably installed on the inner wall of the slide groove. A fixed plate 147 is fixedly installed on the side of the sliding plate 146 close to the roller 145. The sliding plate 146 rises to protect the operator to prevent the glass fiber from directly jumping onto the tester when it is pulled and broken, causing injury to the tester, which poses a safety hazard.

[0025] A No. 2 spring is arranged between the connecting plate 142 and the supporting plate 3, and the No. 2 spring drives the connecting plate 142 to reset. A No. 3 spring is arranged between the sliding groove and the sliding plate 146, and the No. 3 spring drives the sliding plate 146 to reset.

[0026] The observation device includes a rotating rod 151, a fixed block 152, a fixed frame 153, a slide plate 154 and an infrared detection device 155. The rotating rod 151 is rotatably installed on a 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 slide 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 slide plate 154, and 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, and a collecting groove is opened inside the fixed frame 153. The state of the glass fiber during stretching is observed by the infrared detection device 155, and these defects are identified by the difference in thermal reflection, so as to facilitate product improvement.

[0027] An elastic telescopic plate 156 is fixedly installed at the bottom of the slide plate 154, and a brush is provided at the free end of the elastic telescopic plate 156. A guide groove 157 is opened on the inner wall of the fixed frame 153. A sliding rod 158 is fixedly installed on 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, and 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 to prevent the impurities from affecting the detection of the infrared detection device 155.

[0028] A No. 4 spring is arranged between the slide plate 154 and the fixed frame 153, and the slide plate 154 is reset by the No. 4 spring. A No. 2 torsion spring is arranged between the rotating plate 159 and the guide groove 157, and the rotating plate 159 is reset by the No. 2 torsion spring.

[0029] When this embodiment is working: the connecting block 141 is driven to rotate upward by rotating the rotating block 10 downward, and the connecting block 141 rotating upward will push the connecting plate 142 to move upward, and the connecting plate 142 moving upward will drive the pulley 143 to move upward, and the pulley 143 moving upward will contact the glass fiber to prevent the glass fiber from rubbing on the support plate 3 during stretching, which causes the glass fiber to break due to friction during stretching, affecting the detection effect, and at the same time, the connecting plate 142 moving upward will drive the L-shaped plate 144 to move upward, and the L-shaped plate 144 moving upward will drive the roller 145 to move upward, and the roller 145 moving upward will push the fixed plate 147 to move upward, and the fixed plate 147 moving upward will drive the sliding plate 146 to move upward, and the sliding plate 146 rises to protect the operator to prevent the glass fiber from directly jumping onto the detection personnel when it is pulled and broken, causing injuries to the detection personnel, and posing a safety hazard.

[0030] 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 in the direction close to the support plate 3. The movement of the fixed block 152 in the direction close to the support plate 3 will drive the slide plate 154 to move in the direction close to the support plate 3. The movement of the slide plate 154 in the direction close to the support plate 3 will open the top of the fixed frame 153, and the state of the glass fiber during stretching is observed by the infrared detection device 155. These defects are identified by the difference in heat reflection, which is convenient for improving the product. At the same time, when the slide plate 154 is not in use, the reset of the infrared detection device 155 will seal the infrared detection device 155 in the fixed frame 153 to prevent the infrared detection device 155 from being in contact with moisture in the air for a long time, which will cause the infrared detection device 155 to be damaged and the service life to be reduced. At the same time, the slide plate 154 moves closer to the support plate 3 will drive the elastic telescopic plate 156 to move in the direction close to the supporting plate 3. The movement of the elastic telescopic plate 156 in the direction close to the supporting 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 along the top of 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 loss of the squeezing of the guide groove 157 will cause the sliding rod 158 to reset under the elastic force of the elastic telescopic plate 156 itself. At the same time, when the sliding plate 154 is reset after the 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 the stretching into the collecting groove to prevent the impurities from affecting the detection of the infrared detection device 155.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the tensile strength of finished glass fiber products, characterized in that: include: A testing platform (1), wherein a driving device (2) is arranged on the inner wall of the testing platform (1), and a supporting plate (3) is fixedly mounted on the top of the driving device (2); A clamping device, wherein the clamping device is arranged on the top of the support plate (3), and the clamping device comprises a fixed rod (4), a linear motor (5), a pressure plate (6), a tension sensor (7), a clamping block (8), a push block (9), a rotating block (10), a short rod (11), a sliding block (12) and an extrusion block (13), wherein the fixed rod (4) is fixedly mounted on the top of the support plate (3), the linear motor (5) is fixedly mounted on the surface of the support plate (3), the pressure plate (6) is fixedly mounted on the output end of the linear motor (5), the tension sensor (7) is arranged on the top of the pressure plate (6), the clamping block (8) is fixedly mounted on the bottom of the pressure plate (6), the push block (9) is fixedly mounted on the surface of the pressure plate (6), the rotating block (10) is rotatably mounted on the surface of the support plate (3), the short rod (11) is fixedly mounted on the surface of the rotating block (10), the sliding block (12) is slidably mounted on the surface of the support plate (3), and the extrusion block (13) is fixedly mounted on the surface of the sliding block (12); Wherein, the rotating block (10) is provided with a protection device for protecting workers and an observation device for observing the surface of the product.

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

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

4. A glass fiber finished product tensile strength detection device according to claim 3, characterized in that: An L-shaped plate (144) is fixedly mounted on the bottom of the connecting plate (142); a roller (145) is rotatably mounted on one end of the L-shaped plate (144) away from the connecting plate (142); a sliding groove is provided on the surface of the detection platform (1); a sliding plate (146) is slidably mounted on the inner wall of the sliding groove; and a fixed plate (147) is fixedly mounted on one side of the sliding plate (146) close to the roller (145).

5. A device for detecting tensile strength of finished glass fiber products according to claim 4, characterized in that: A No. 2 spring is provided between the connecting plate (142) and the supporting plate (3), and a No. 3 spring is provided between the sliding groove and the sliding plate (146).

6. A device for detecting tensile strength of finished glass fiber products according to claim 5, characterized in that: 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); 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 groove is provided inside the fixed frame (153).

7. A 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 arranged 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. A device for detecting tensile strength of finished glass fiber products 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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