A glass fiber tensile testing device

Abstract

The application discloses a kind of glass fiber tensile test device, including test table, symmetrically setting tensile mechanism in both ends of test table, clamping mechanism is set on tensile mechanism, adjusting mechanism is set on both sides of clamping mechanism, and adjusting mechanism reverse motion prevents clamping mechanism from moving in front and back position.This application can prevent the clamping damage caused by the clamping plate to the both ends of glass fiber, and improve the test accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass fiber, in particular to a glass fiber tensile test device. BACKGROUND

[0002] Glass fiber is a kind of inorganic non-metallic material with excellent performance, and there are many kinds, which have good insulation, high heat resistance, good corrosion resistance and high mechanical strength, but the disadvantage is brittle.

[0003] In the production process of glass fiber, its performance needs to be tested, for example, the determination of the tensile breaking capacity and elongation at break of glass fiber. Since the surface of glass fiber is smooth and easy to crack, the tensile properties of the material are tested by using ordinary tension machine, which affects the test accuracy due to damage to the clamping part of the material. SUMMARY

[0004] The present application provides a glass fiber tensile test device to solve the technical problem of damage to the clamping part of the glass fiber caused by the ordinary tension machine testing the tensile properties.

[0005] The present application is realized by the following measures:

[0006] A glass fiber tensile test device, comprising a test table, the test table is symmetrically provided with a tensile mechanism at both ends, the tensile mechanism is provided with a clamping mechanism, the clamping mechanism is provided with an adjusting mechanism on both sides, and the adjusting mechanism moves reversely to prevent the clamping mechanism from moving up and down in the front and back positions.

[0007] Further, the tensile mechanism comprises a bottom plate, the bottom plate is provided with a guide rail, the guide rail is provided with a sliding block, the sliding block is provided with a supporting plate, and the clamping mechanism is arranged on the supporting plate.

[0008] Further, the clamping mechanism comprises an upper clamping plate and a lower clamping plate, the inner side of the upper clamping plate is provided with a cavity, the cavity is buckled on the lower clamping plate, and the upper end and the middle section of the cavity are provided with pouring holes.

[0009] Further, the cavity comprises a cavity A and a cavity B, the cavity A is through the cavity B, the cavity A is provided with a semicircular through hole, the semicircular through hole and the upper end surface of the lower clamping plate form the pouring hole, the combination of the cavity A and the cavity B is also provided with a pouring hole, and the upper clamping plate and the lower clamping plate are connected by bolts.

[0010] Further, the supporting plate is square, the two sides of the supporting plate are provided with wing-shaped folded edges, one of the wing-shaped folded edges is provided with a telescopic rod, one end of the telescopic rod is fixedly connected with the wing-shaped folded edge, the other end is arranged on a support, the support is provided with a gas cylinder, and the piston rod of the gas cylinder is connected with the telescopic rod.

[0011] Further, the other wing-shaped folded edge of the supporting plate is provided with a through hole, which is communicated with the cavity B.

[0012] Further, the adjusting mechanism comprises fixed seats which are symmetrical to each other, a screw rod is arranged on the fixed seat, the screw rod is provided with external threads in opposite directions at both ends, a limiting groove is arranged on the bottom plate, a moving block is arranged in the limiting groove, the moving block is arranged at both ends of the screw rod, and the moving block is provided with internal threads corresponding to the external threads of the screw rod, one of the fixed seats is provided with a motor, the output shaft of the motor is connected with the screw rod, and the moving block is arranged on both sides of the clamping mechanism.

[0013] The present application has the following advantages:

[0014] 1. The present application can prevent the clamping damage caused by the clamping plate to the two ends of the glass fiber, and improve the test accuracy.

[0015] 2. The stretching mechanism is used for stretching the glass fiber, the clamping mechanism is used for fixing the two ends of the glass fiber, the reverse movement of the adjusting mechanism prevents the clamping mechanism from moving in the front and back positions, and the test accuracy is further improved.

[0016] 3. The guide rail and the sliding block are used to drive the movement of the supporting plate, which can ensure the linear movement of the supporting plate in the horizontal position, and can effectively prevent the test accuracy from being reduced due to the twisting of the glass fiber.

[0017] 4. The two ends of the glass fiber are arranged in the cavity, the epoxy resin is injected into the cavity through the pouring hole to fix the two ends of the glass fiber in the cavity, then the upper clamping plate and the lower clamping plate are bolted together to form a whole, then the whole is placed on the supporting plate, the extension of the piston rod of the air cylinder drives the movement of the supporting plate, and then the whole clamping mechanism moves, and then the glass fiber is stretched, so as to test the breaking capacity and the breaking elongation of the glass fiber. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present application.

[0019] Figure 2 It is a structural schematic diagram of the stretching mechanism in the present application.

[0020] Figure 3 It is a partial enlarged view of A in the figure. Figure 2

[0021] Figure 4 It is a structural schematic diagram of the clamping mechanism.

[0022] Figure 5 It is a structural schematic diagram of the upper clamping plate.​

[0023] Figure 6 The structure diagram of the adjusting mechanism on the application.

[0024] Wherein, the reference signs are: 1. test bench; 2. stretching mechanism; 21. bottom plate; 211. limiting groove; 22. guide rail; 24. supporting plate; 25. wing-shaped folded edge; 26. telescopic rod; 27. support; 28. air cylinder; 3. clamping mechanism; 31. upper clamping plate; 311. cavity; 3111. pouring hole; 3112. cavity A; 3113. cavity B; 32. lower clamping plate; 4. adjusting mechanism; 41. fixed seat; 42. lead screw; 43. moving block; 44. motor. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of the scheme, the scheme will be described below through specific embodiments.

[0026] Referring to Figure 1 , a glass fiber stretching test device, comprising a test bench 1, the test bench 1 is symmetrically provided with a stretching mechanism 2 at both ends, the stretching mechanism is used for stretching the glass fiber, the stretching mechanism 2 is provided with a clamping mechanism 3, the clamping mechanism is used for fixing the two ends of the glass fiber, the clamping mechanism 3 is provided with an adjusting mechanism 4 on both sides, the adjusting mechanism 4 moves reversely to prevent the clamping mechanism 3 from moving up and down in the front and back positions.

[0027] Referring to Figure 2 and Figure 3 , the stretching mechanism 2 comprises a bottom plate 21, the bottom plate 21 is provided with a guide rail 22, the guide rail 22 is provided with a sliding block, the sliding block is provided with a supporting plate 24, the guide rail and the sliding block are used to drive the movement of the supporting plate, which can ensure the linear movement of the supporting plate in the horizontal position and effectively prevent the test precision from being reduced due to the twisting of the glass fiber. The supporting plate 24 is provided with the clamping mechanism 3.

[0028] Referring to Figure 4 and Figure 5 , the clamping mechanism 3 comprises an upper clamping plate 31 and a lower clamping plate 32, the inner side of the upper clamping plate 31 is provided with a cavity 311, the cavity 311 is buckled on the lower clamping plate 32, and the upper end of the cavity 311 is provided with a pouring hole 3111.

[0029] The cavity 311 comprises a cavity A 3112 and a cavity B 3113, the cavity A 3112 and the cavity B 3113 are through, the cavity A 3112 is provided with a semicircular through hole, the semicircular through hole and the upper end surface of the lower clamping plate 32 form the pouring hole 3111, and the cavity A 3112 and the cavity B 3113 are also provided with pouring holes at the joint, the upper clamping plate and the lower clamping plate are bolted.

[0030] The pallet 24 is square, and the two sides of the pallet 24 are provided with wing-shaped folded edges 25, one of the wing-shaped folded edges is provided with a telescopic rod 26, one end of the telescopic rod 26 is fixedly connected with the wing-shaped folded edge, and the other end is arranged on a support 27, the support 27 is provided with a pneumatic cylinder 28, and the piston rod of the pneumatic cylinder 28 is connected with the telescopic rod 26.

[0031] The two ends of the glass fiber are arranged in the cavity, the epoxy resin is injected into the cavity through the pouring hole to fix the two ends of the glass fiber in the cavity, then the upper clamping plate and the lower clamping plate are bolted together to form an integral whole, then the integral whole is placed on the pallet, the extension of the piston rod of the pneumatic cylinder drives the pallet to move, and then the entire clamping mechanism moves, and then the glass fiber is stretched, so that the breaking capacity and the breaking elongation of the glass fiber are tested.

[0032] The other wing-shaped folded edge of the pallet 24 is provided with a through hole, and the through hole is communicated with the cavity B3113.

[0033] The glass fiber passes through the through hole, and the two ends are fixed in the cavity, and the glass fiber is wound in the through hole, so that the glass fiber can be stretched in a straight line.

[0034] Referring to Figure 6 The adjusting mechanism 4 comprises fixed seats 41 which are symmetrical to each other, screw rods 42 which are arranged on the fixed seats 41, outer threads which are arranged at two ends of the screw rods 42 and are opposite in rotation, a limit groove 211 which is arranged on the bottom plate 21, moving blocks 43 which are arranged in the limit groove 211, the moving blocks 43 being arranged at the two ends of the screw rods 42 and being provided with inner threads which are corresponding to the outer threads of the screw rods, one of the fixed seats 41 being provided with a motor 44, an output shaft of the motor 44 being connected with the screw rod 42, and the moving blocks 43 being arranged on the two sides of the clamping mechanism 3.

[0035] The motor is started, the output shaft of the motor is rotated to drive the screw rod to rotate, because the outer threads which are opposite in rotation are arranged at the two ends of the screw rod, and because the moving blocks are arranged in the limit groove, the moving blocks will not rotate with the rotation of the screw rod, and only move close to or away from the axis of the screw rod.

[0036] The technical features not described in the application can be realized by or using the prior art, and will not be repeated here. Of course, the above description is not a limitation of the application, and the application is not limited to the above examples. Changes, modifications, additions or replacements made by ordinary skilled persons in the technical field within the essential scope of the application should also be within the protection scope of the application.

Claims

1. A glass fiber tensile testing device comprising a test bench (1), characterized in that, The test bench (1) is symmetrically provided with a stretching mechanism (2) at both ends, the stretching mechanism (2) is provided with a clamping mechanism (3), the clamping mechanism (3) is provided with an adjusting mechanism (4) on both sides, and the adjusting mechanism (4) prevents the clamping mechanism (3) from moving forward and backward; The stretching mechanism (2) comprises a bottom plate (21), the bottom plate (21) is provided with a guide rail (22), the guide rail (22) is provided with a sliding block, the sliding block is provided with a supporting plate (24), and the supporting plate (24) is provided with the clamping mechanism (3); The supporting plate (24) is square, the supporting plate (24) is provided with a wing-shaped folded edge (25) on both sides, one of the wing-shaped folded edges is provided with a telescopic rod (26), one end of the telescopic rod (26) is fixedly connected with the wing-shaped folded edge, the other end is arranged on a support (27), the support (27) is provided with a gas cylinder (28), a piston rod of the gas cylinder (28) is connected with the telescopic rod (26); The clamping mechanism (3) comprises an upper clamping plate (31) and a lower clamping plate (32), the inner side of the upper clamping plate (31) is provided with a cavity (311), the cavity (311) is buckled on the lower clamping plate (32), and the upper end and the middle section of the cavity (311) are provided with pouring holes (3111); The cavity (311) comprises a cavity A (3112) and a cavity B (3113), the cavity A (3112) and the cavity B (3113) are through, the cavity A (3112) is provided with a semicircular through hole, the semicircular through hole and the upper end surface of the lower clamping plate (32) form the pouring hole (3111), the cavity A (3112) and the cavity B (3113) are also provided with pouring holes, and the upper clamping plate and the lower clamping plate (32) are connected by bolts; The other wing-shaped folded edge of the supporting plate (24) is provided with a through hole, and the through hole is through the cavity B (3113); The adjusting mechanism (4) comprises fixed seats (41) which are symmetrical to each other, the fixed seats (41) are provided with lead screws (42), the lead screws (42) are provided with external threads in opposite directions at both ends, the bottom plate (21) is provided with a limiting groove (211), the limiting groove (211) is provided with a moving block (43), the moving block (43) is arranged at both ends of the lead screw (42), the moving block is provided with an internal thread corresponding to the external thread of the lead screw (42), one of the fixed seats (41) is provided with a motor (44), the output shaft of the motor (44) is connected with the lead screw (42), and the moving block (43) is arranged on both sides of the clamping mechanism (3).

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