String tensile test equipment

Abstract

A string tensile test device comprises a fixing mechanism used for fixing one end of a string and a tension mechanism used for pulling the other end of the string. The fixing mechanism comprises a mounting seat and a tension meter arranged on the mounting seat; the tension mechanism comprises an air cylinder for providing tension, a wire winding rod connected with an air cylinder telescopic rod and a wire clamping assembly. The principle of the utility model is as follows: during testing, one end of the wire core with the bead head is fixed at the head of the tension meter; the other end of the wire core is firstly wound on the wire winding rod, then the tail end of the wire core is clamped and fixed through the wire clamping assembly, the fixing mode is reliable, and the wire core is not prone to loosening when being pulled; the air cylinder is started to pull the winding rod backwards to tighten the wire core, and the maximum tensile force which can be borne by the wire core can be displayed on the tension meter after the wire core is broken, so that whether the wire core meets the test requirement or not is judged.

Description

Technical Field

[0001] The utility model relates to testing equipment, in particular to a string tensile testing equipment. Background Art

[0002] During the production process of guitar strings, the wire core is not subjected to tensile testing, which causes the strings to occasionally break after being wound. To solve this problem, it is necessary to develop a tensile testing device specifically for testing guitar strings. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a string tensile test device, which can not only perform tensile test on the wire core of the string but also is easy to operate.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a string tensile test device, including a fixing mechanism for fixing one end of the string and a tension mechanism for pulling the other end of the string; the fixing mechanism includes a mounting seat and a dynamometer arranged on the mounting seat; the tension mechanism includes a cylinder for providing tension, a winding rod connected to the telescopic rod of the cylinder, and a wire clamping assembly. The principle of the utility model: during the test, fix one end of the wire core with a beaded head on the head of the dynamometer; first wind the other end of the wire core on the winding rod, and then clamp and fix its end through the wire clamping assembly. This fixing method is reliable and is not easy to loosen when subjected to tension; start the cylinder to pull the winding rod backwards to tighten the wire core. After the wire core is broken, the maximum tension it can withstand can be displayed on the dynamometer, thereby judging whether the wire core meets the test requirements.

[0005] As an improvement, the cylinder is fixed to one end of the base plate through a first mounting plate, and the mounting seat is arranged at the other end of the base plate.

[0006] As an improvement, the mounting base includes a second mounting plate, a supporting plate hinged to the second mounting plate, and a support rod arranged at the bottom of the supporting plate, and the dynamometer is fixed on the supporting plate.

[0007] As an improvement, the head of the dynamometer is provided with a hook, and the hook is provided with a slot for clamping the bead head of the guitar string.

[0008] As an improvement, the winding rod and the wire clamping assembly are fixed on the tension seat, and the cylinder is connected to the tension seat.

[0009] As an improvement, the wire clamping assembly includes a clamping block seat, a fixed clamping block, a movable clamping block arranged above the fixed clamping block, and a fastening bolt that drives the movable clamping block to move up and down.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Wrap the other end of the wire core around the winding rod first, and then clamp its end with the wire clamp assembly. This fixing method is reliable and not easy to loosen when subjected to tension. Break the wire core through the cylinder and read the tension value through the dynamometer to determine whether the wire core meets the test requirements. The operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a side view of the utility model.

[0013] Figure 2 It is a top view of the utility model.

[0014] Figure 3 A side view of the connector.

[0015] Figure 4 This is a schematic diagram of the front of the connector. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] like Figure 1 , 2 As shown, a string tensile test device includes a fixing mechanism for fixing one end of the string 7 and a tension mechanism for pulling the other end of the string 7. The fixing mechanism includes a mounting seat 5 and a dynamometer 4 arranged on the mounting seat 5; the mounting seat 5 includes a second mounting plate 51, a support plate 52 hinged to the second mounting plate 51, and a support rod 53 arranged at the bottom of the support plate 52; the dynamometer 4 is fixed to the support plate 52 by bolts, which is convenient for disassembly and assembly of the dynamometer 4, and the support plate 52 can be flipped up and down around one hinged end to change the placement angle of the dynamometer 4 so that it can automatically adapt to the position of the string 7 during testing; the head of the dynamometer 4 is provided with a hook 41, and the hook 41 is provided with a slot for clamping the string bead head, and one end of the wire core can be fixed by clamping the bead head in the slot. As shown Figure 3 , 4As shown, the tension mechanism includes a cylinder 1 for providing tension and a connecting seat 3 connected to the cylinder 1 and providing winding, the connecting seat 3 includes a tension seat 33, a winding rod 32 and a wire clamping assembly 31; the cylinder 1 is fixed to one end of the base plate 6 through a first mounting plate 2, and the mounting seat 5 is arranged at the other end of the base plate 6 through a second mounting plate 51. The equipment is an integral structure, which is convenient for installation and transportation; the winding rod 32 and the wire clamping assembly 31 are fixed on the tension seat 33, the winding rod 32 is arranged on one side of the tension seat 33, and the wire clamping assembly 31 is arranged on the top of the tension seat 33, the cylinder 1 is connected to the rear side of the tension seat 33, and the winding rod 32 and the wire clamping assembly 31 are driven to move forward and backward through the extension and contraction of the cylinder 1; the wire clamping assembly 31 includes a clamping block seat 31 4. A fixed clamp block 311, a movable clamp block 312 arranged above the fixed clamp block 311, and a fastening bolt 313 for driving the movable clamp block 312 to move up and down. The fixed clamp block 311 is fixed on the clamp block seat 314. A limiting groove is provided on the upper part of the clamp block seat 314. The movable clamp block 312 is arranged in the limiting groove to ensure the stable up and down movement of the movable clamp block 312. A threaded hole is provided on the clamp block seat 314. The fastening bolt 313 passes through the threaded hole and is rotatably connected with the movable clamp block 312. By rotating the fastening bolt 313, the movable clamp block 312 can be driven to move closer to or away from the fixed clamp block 311, and the movable clamp block 312 has a self-locking function; the clamping surfaces of the fixed clamp block 311 and the movable clamp block 312 are provided with wavy anti-slip teeth, and the bite force is stronger.

[0018] The principle of the utility model is as follows: during the test, one end of the wire core with a bead head is fixed to the head of the tension gauge 4; the other end of the wire core is firstly wound around the winding rod 32, and then the end thereof is clamped and fixed by the wire clamping assembly 31. This fixing method is reliable and is not easy to get loose when subjected to tension; the cylinder 1 is started to pull the winding rod 32 backward to tighten the wire core, and after the wire core is broken, the maximum tension that it can withstand can be displayed on the tension gauge 4, thereby judging whether the wire core meets the test requirements.

Claims

1. A string tensile test device, characterized in that: It comprises a fixing mechanism for fixing one end of the string and a tension mechanism for pulling the other end of the string; the fixing mechanism comprises a mounting seat and a tension meter arranged on the mounting seat; the tension mechanism comprises a cylinder providing tension, a winding rod connected to the cylinder telescopic rod, and a wire clamping assembly.

2. A string tensile testing device according to claim 1, characterized in that: The cylinder is fixed to one end of the base plate through a first mounting plate, and the mounting seat is arranged at the other end of the base plate.

3. The string tensile test device according to claim 1, characterized in that: The mounting seat comprises a second mounting plate, a supporting plate hinged to the second mounting plate and a supporting rod arranged at the bottom of the supporting plate, and the dynamometer is fixed on the supporting plate.

4. The string tensile test device according to claim 1, characterized in that: The head of the dynamometer is provided with a hook, and the hook is provided with a slot for clamping the bead head of the string.

5. The string tensile testing device according to claim 1, characterized in that: The winding rod and the wire clamping assembly are fixed on the tension seat, and the cylinder is connected to the tension seat.

6. The string tensile test device according to claim 1, characterized in that: The wire clamping assembly comprises a clamping block seat, a fixed clamping block, a movable clamping block arranged above the fixed clamping block, and a fastening bolt for driving the movable clamping block to move up and down.

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