Manual detection device for breaking force of welding point of steel cord

Abstract

The invention relates to the field of steel cord detection equipment, in particular to a manual detection device for the breaking force of a welding point of a steel cord. Comprising a workbench, a positioning sliding rail, a sliding buckle plate, a bearing box, a tension meter, a first clamping jaw, a connecting strip plate, a second clamping jaw, a supporting vertical plate, a positioning long box, a recording plate, limiting teeth, a marking pen, a locking insertion plate, a power mechanism used for driving the bearing box to move and a brake mechanism used for limiting movement of the bearing box, wherein the marking pen and the locking insertion plate are symmetrically arranged in the bearing box in a sliding mode. The power mechanism is provided with a pulling output end, the pulling output end is connected with the bearing box, the brake mechanism is provided with a transverse moving output end, the transverse moving output end is used for driving the locking insertion plate and the marking pen to stretch out or retract, and the first clamping jaw and the second clamping jaw are used for clamping a steel cord body. And the efficiency of detection work is improved.

Description

Technical Field

[0001] The invention relates to the field of steel cord detection equipment, in particular to a manual detection device for the breaking force of a steel cord welding point. Background Art

[0002] Steel cord is the key skeleton material of rubber products such as tires. The quality of its welding points directly affects product performance. Through breaking force testing, it can be ensured that the strength of the welding points meets the industry standards or internal enterprise standards. The existing testing method is to manually stretch the steel cord by individual employees to determine whether the welding points after welding are firm by feel. Due to individual differences, the tensile force used for measurement varies, and it is not measurable and observable, resulting in inconsistent welding point test results, which easily produces many unqualified welding products, so the quality of the products cannot be guaranteed; another method is to use the tensile instrument in the laboratory for testing, which is costly, and the operation steps are cumbersome and the efficiency is relatively low. Therefore, a new type of testing equipment is needed to solve the above problems, which can quickly detect the breaking force, simplify the testing steps, and reduce the testing cost. Summary of the invention

[0003] Based on this, it is necessary to provide a manual detection device for the breaking force of steel cord welding points in response to the existing technical problems.

[0004] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a manual detection device for the breaking force of a steel cord welding point, comprising a workbench, two positioning slide rails fixedly arranged on the workbench in a symmetrical state, a sliding buckle plate slidably arranged on each positioning slide rail, a bearing box fixedly arranged on the two sliding buckle plates, a tensile gauge fixedly arranged on one side of the bearing box and fixedly connected to the workbench, a first clamping jaw fixedly arranged on the tensile gauge, a connecting strip plate elastically slidably arranged in the bearing box, a second clamping jaw fixedly arranged on the connecting strip plate, and a supporting vertical plate fixedly arranged beside each positioning slide rail. , a long positioning box fixedly arranged on the supporting vertical plate, a recording plate fixedly arranged on the top of the long positioning box, a plurality of limiting teeth evenly spaced along the length direction of the long positioning box, two marking pens and locking plug plates symmetrically slidably arranged in the carrying box, a power mechanism for driving the carrying box to move and a brake mechanism for limiting the movement of the carrying box, the power mechanism having a pulling output end, the pulling output end being connected to the carrying box, the brake mechanism having a transverse output end, the transverse output end being used to drive the locking plug plate and the marking pen to extend or retract, and the first clamp and the second clamp are used to clamp the steel cord body.

[0005] Furthermore, the power mechanism also includes a wheel frame fixedly arranged on the side of the carrying box away from the second clamp, a winding wheel rotatably arranged on the wheel frame, a pull rope wound around the winding wheel, a carrying buckle plate fixedly arranged on the carrying box, and a movable box fixedly arranged on the carrying buckle plate, one end of the pull rope is wound around the winding wheel, and the other end is connected to the movable box.

[0006] Furthermore, a limiting groove is provided at the bottom of the carrying box, a supporting block is elastically slidably arranged in the limiting groove, and the supporting block is fixedly connected to the connecting strip.

[0007] Furthermore, the movable box is the pulling output end of the power mechanism.

[0008] Furthermore, a reset spring is fixedly arranged on the inner wall of the carrying box away from the second clamping claw, and a mounting hole is opened on one side of the supporting block close to the reset spring. One end of the reset spring is fixedly connected to the inner wall of the carrying box, and the other end is fixedly connected to the bottom of the mounting hole.

[0009] Furthermore, the brake mechanism also includes two transmission gears symmetrically arranged on both sides of the limit groove, a contact inclined plate fixedly arranged on both sides of the supporting block, a transmission rack arranged on both sides of each transmission gear and meshing with the transmission gear, and a transfer rack, a bearing tube fixedly arranged on the side of each transmission rack away from the limit groove, and a bearing groove opened on the side of each transfer rack away from the limit groove, the marker pen is elastically slidably arranged in the bearing tube, the locking plug plate is elastically slidably arranged in the bearing groove, the contact inclined plates respectively abut against one end of the transmission rack away from the bearing tube, and the transmission gears are rotatably connected to the bottom of the bearing box through a torsion spring.

[0010] Furthermore, the transmission rack and the transfer rack are the lateral output ends of the brake mechanism.

[0011] Furthermore, the power mechanism also includes a supporting platform arranged on a side of the supporting box away from the second clamp and fixedly connected to the workbench, and a fixed box fixedly arranged on the supporting platform. A pulley block is arranged in the fixed box and the movable box, and the pull rope passes through the pulley block and is wound around the winding wheel.

[0012] Furthermore, the power mechanism also includes a load-bearing shaft coaxially fixed on the winding wheel, a worm wheel coaxially fixed on the end of the load-bearing shaft away from the winding wheel, a worm screw rotatably arranged on the workbench through an axle seat, a transmission box arranged at one end of the worm screw and fixedly connected to the workbench, and an operating handle arranged on the transmission box, a reversing bevel gear group is arranged in the transmission box, the worm screw is coaxially fixedly connected to one bevel gear in the transmission box, the operating handle is coaxially fixedly connected to another bevel gear in the transmission box, and the worm wheel is meshed with the worm screw.

[0013] Furthermore, the brake mechanism also includes a limit box fixedly arranged on the side of the transfer rack close to the locking plug plate, a trigger rod slidably arranged in the limit box, two limit rods symmetrically arranged on the side of the carrier box away from the second clamping claw, a toggle cross plate elastically slidably arranged on the two limit rods, and an abutment bevel groove opened on each locking plug plate, one end of the trigger rod close to the locking plug plate contacts the abutment bevel groove, and the end of the trigger rod away from the locking plug plate is slidably connected to the toggle cross plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the device can quickly test the breaking force of the steel cord welding point, use a mechanical structure to stretch the steel cord body, and can intuitively display the distance the steel cord body is stretched by the tensile force on the recording board in the form of lines during the test, which is convenient for the staff to record and improve the detection accuracy; Second, the device is provided with a brake mechanism, which can automatically lock the bearing box again after the steel cord body is broken, to prevent the bearing box from moving quickly after the steel cord body is broken, causing damage to the equipment, thereby extending the service life of the equipment; Thirdly, the device utilizes the labor-saving principle of the movable pulley to realize that the worker can manually pull off the steel cord body in a purely mechanical way, thereby reducing the detection cost. In addition, the purely mechanical structure allows the detection test to be carried out anywhere outside the laboratory, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment; Figure 2 is a top view of an embodiment; Figure 3 is a schematic diagram of the three-dimensional structure of the supporting block of the embodiment; Figure 4 is a schematic diagram of the exploded three-dimensional structure of the locking plug plate and the limiting teeth of the embodiment; Figure 5 is a schematic diagram of the three-dimensional structure of the carrier box of the embodiment; Figure 6 is a schematic diagram of the three-dimensional structure of the winding wheel of the embodiment; Figure 7 is a schematic diagram of the three-dimensional structure of the steel cord body of the embodiment when it is just stretched and tightened; Figure 8 It is a schematic diagram of the three-dimensional structure when the breaking force detection of the embodiment starts.

[0016] The numbers in the figure are: 1, workbench; 2, positioning slide rail; 3, dynamometer; 4, first clamping jaw; 5, steel cord body; 6, bearing box; 7, sliding buckle plate; 8, connecting strip plate; 9, second clamping jaw; 10, limit groove; 11, supporting block; 12, mounting hole; 13, reset tension spring; 14, touch inclined plate; 15, transmission rack; 16, bearing tube; 17, marking pen; 18, transfer rack; 20, locking plug plate; 21, contact inclined groove; 22. Limit box; 23. Trigger rod; 24. Transmission gear; 25. Limit rod; 26. Move horizontal plate; 27. Wheel frame; 28. Winding wheel; 29. ​​Load-bearing shaft; 30. Worm gear; 31. Worm; 32. Transmission box; 33. Operating handle; 34. Load-bearing platform; 35. Fixed box; 36. Pull rope; 37. Load-bearing buckle plate; 38. Movable box; 39. Support vertical plate; 40. Positioning long box; 41. Limit teeth; 42. Recording board. DETAILED DESCRIPTION

[0017] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] refer to Figures 1 to 8 : A manual detection device for the breaking force of a steel cord welding point comprises a workbench 1, two positioning rails 2 symmetrically fixedly arranged on the workbench 1, a sliding buckle plate 7 slidably arranged on each positioning rail 2, a carrying box 6 fixedly arranged on the two sliding buckle plates 7, a tensile gauge 3 fixedly arranged on one side of the carrying box 6 and fixedly connected to the workbench 1, a first clamping jaw 4 fixedly arranged on the tensile gauge 3, a connecting strip plate 8 elastically slidably arranged in the carrying box 6, a second clamping jaw 9 fixedly arranged on the connecting strip plate 8, a supporting vertical plate 39 fixedly arranged on the side of each positioning rail 2, and a fixedly arranged on the supporting vertical plate 39. A positioning length box 40, a recording plate 42 fixedly arranged on the top of the positioning length box 40, a plurality of limit teeth 41 equally spaced along the length direction of the positioning length box 40, two marking pens 17 and a locking plug plate 20 symmetrically slidably arranged in the carrier box 6, a power mechanism for driving the carrier box 6 to move and a brake mechanism for limiting the movement of the carrier box 6, the power mechanism having a pulling output end connected to the carrier box 6, the brake mechanism having a transverse output end, the transverse output end being used to drive the locking plug plate 20 and the marking pen 17 to extend or retract, the first clamp 4 and the second clamp 9 being used to clamp the steel cord body 5.

[0019] (It should be noted that the two locking plates 20 set on the carrier box 6 in the initial state are inserted into the limit teeth 41) When the device is in operation, the steel cord body 5 that needs to be tested for the breaking force of the welding point is clamped on the first clamping jaw 4 and the second clamping jaw 9, and then the dynamometer 3 drives the first clamping jaw 4 to move, so that the clamped steel cord body 5 is tightened (it should be noted that the dynamometer 3 is provided with a telescopic actuator for pulling the first clamping jaw 4 to move), and then the pulling output end of the power mechanism pulls the carrier box 6 to move, supporting the carrier box 6 to slide on the positioning slide rail 2 through the sliding buckle plate 7, and then the transverse output end of the brake mechanism pulls the two locking plates 20 out of the limit teeth 41, and at the same time extends the two marking pens 17 from the carrier box 6, so that the marking pens 17 contact the recording board 42, and then the output end is pulled to continue pulling The movable carrier box 6 slides on the positioning slide rail 2 until the connecting strip 8 makes hard contact with the side wall of the carrier box 6, causing the second clamping claw 9 to move synchronously with the carrier box 6 until the steel cord body 5 is broken. During the breaking process, the carrier box 6 will move a certain distance on the positioning slide rail 2, causing the carrier box 6 to draw a line on the recording board 42 with the marker 17, so that the displacement distance of the carrier box 6 can be intuitively displayed on the recording board 42, and then the tension value displayed by the dynamometer 3 is convenient for the staff to accurately record the experimental data, wait for the steel cord body 5 to be broken, and the lateral output end of the brake mechanism to operate again, retract the two markers 17 into the carrier box 6 synchronously, and insert the two locking plug plates 20 into the limit teeth 41 again, so as to realize the locking and limiting of the carrier box 6, which is convenient for the staff to record the experimental data.

[0020] In order to show the detailed structure of the power mechanism, the following features are also set: The power mechanism also includes a wheel frame 27 fixedly arranged on the side of the carrying box 6 away from the second clamp 9, a winding wheel 28 rotatably arranged on the wheel frame 27, a pull rope 36 wound around the winding wheel 28, a carrying buckle plate 37 fixedly arranged on the carrying box 6 and a movable box 38 fixedly arranged on the carrying buckle plate 37, one end of the pull rope 36 is wound around the winding wheel 28, and the other end is connected to the movable box 38.

[0021] When the device is running, the winding wheel 28 rotates to tighten the pull rope 36 (it should be noted that the pull rope 36 is an inelastic steel wire rope to ensure sufficient strength), and then the pull rope 36 drives the movable box 38 to move. The movement of the movable box 38 drives the supporting box 6 to slide on the positioning slide rail 2 through the supporting buckle plate 37.

[0022] In order to show the connection relationship between the carrying box 6 and the connecting strip 8, the following features are also specifically provided: The bottom of the carrying box 6 is provided with a limiting groove 10 (such as Figure 5As shown), a supporting block 11 is elastically slidably arranged in the limiting groove 10, and the supporting block 11 is fixedly connected to the connecting strip 8.

[0023] The movable box 38 is the pulling output end of the power mechanism.

[0024] In order to show how the support block 11 is elastically slidably arranged in the limiting groove 10, the following features are also specifically provided: A reset spring 13 is fixedly arranged on the inner wall of the carrier box 6 away from the second clamp 9, and a mounting hole 12 is opened on the side of the supporting block 11 close to the reset spring 13. One end of the reset spring 13 is fixedly connected to the inner wall of the carrier box 6, and the other end is fixedly connected to the bottom of the mounting hole 12.

[0025] Before starting the test, the telescopic actuator on the dynamometer 3 drives the first jaw 4 to move. The movement of the first jaw 4 causes the steel cord body 5 to be tightened between the first jaw 4 and the second jaw 9. Then, as the movable box 38 drives the supporting box 6 to move, relative movement occurs between the supporting box 6 and the supporting block 11 until the connecting strip 8 makes hard contact with the inner wall of the supporting box 6. The supporting box 6 drives the connecting strip 8 to move synchronously, and then drives the second jaw 9 to move, thereby achieving the stretching of the steel cord body 5.

[0026] In order to show the detailed structure of the brake mechanism, the following features are also set: The brake mechanism also includes two transmission gears 24 symmetrically arranged on both sides of the limit groove 10, a contact inclined plate 14 fixedly arranged on both sides of the supporting block 11, a transmission rack 15 and a transfer rack 18 arranged on both sides of each transmission gear 24 and meshing with the transmission gear 24, a bearing tube 16 fixedly arranged on the side of each transmission rack 15 away from the limit groove 10, and a bearing groove opened on the side of each transfer rack 18 away from the limit groove 10, a marking pen 17 elastically slidably arranged in the bearing tube 16, a locking plug plate 20 elastically slidably arranged in the bearing groove, the contact inclined plate 14 respectively abuts against one end of the transmission rack 15 away from the bearing tube 16, and the transmission gears 24 are rotatably connected to the bottom of the bearing box 6 through a torsion spring.

[0027] The transmission rack 15 and the transfer rack 18 are the lateral output ends of the brake mechanism.

[0028] When the device is running, the supporting block 11 drives the contact inclined plate 14 to move, and the contact inclined plate 14 moves and collides with the transmission rack 15, causing the two transmission racks 15 to extend away from each other from the carrier box 6, and the extension of the transmission rack 15 carries the support tube 16 to move, and the movement of the support tube 16 drives the marking pen 17 to move, causing the marking pen 17 to contact the recording board 42. When the transmission rack 15 is moved by the contact inclined plate 14, the transmission rack 15 drives the transmission gear 24 to rotate, and the rotation of the transmission gear 24 drives the transfer rack 18 to move, thereby causing the two transfer racks 18 to retract synchronously into the carrier box 6, and the movement of the transfer rack 18 drives the locking plug plate 20 to be pulled out from the limit tooth 41.

[0029] In order to demonstrate that the pulling force of the pull rope 36 on the movable box 38 can be amplified when the device is running, the following features are also specifically set: The power mechanism also includes a supporting platform 34 which is arranged on the side of the supporting box 6 away from the second clamp 9 and fixedly connected to the workbench 1, and a fixed box 35 fixedly arranged on the supporting platform 34. A pulley block is arranged in the fixed box 35 and the movable box 38, and the pull rope 36 passes through the pulley block and is wound around the winding wheel 28.

[0030] When the device is running, the winding wheel 28 rotates to reel the pull rope 36, and the reel 36 drives the movable box 38 to move through the pulley set in the movable box 38 and the fixed box 35 (here, refer to the principle of the labor-saving pulley set, the movable box 38 is equivalent to the movable pulley, and the fixed box 35 is equivalent to the fixed pulley). Then the movement of the movable box 38 drives the carrier box 6 to slide on the positioning slide rail 2, waiting for the steel cord body 5 to be broken. When the steel cord body 5 is broken, the connecting strip 8 loses the pulling force of the steel cord body 5. The tension spring 13 is reset to drive the supporting block 11 to reset, and the supporting block 11 is reset to drive the connecting strip plate 8 to reset. When the supporting block 11 is reset, the inclined plate 14 is touched and no longer generates a resistance force with the transmission rack 15. Then, under the action of the torsion spring, the transmission gear 24 is reversed and reset, driving the transmission rack 15 to retract and reset and the transfer rack 18 to extend. The transmission rack 15 is reset to cause the marker pen 17 to move away from the recording board 42, and the transfer rack 18 is reset to allow the locking plug plate 20 to be reinserted into the limit tooth 41.

[0031] In order to show how the reel 28 rotates, the following features are also provided: The power mechanism also includes a load-bearing shaft 29 coaxially fixed on the winding wheel 28, a worm wheel 30 coaxially fixed on the load-bearing shaft 29 at one end away from the winding wheel 28, a worm 31 rotatably arranged on the workbench 1 through an axle seat, a transmission box 32 arranged at one end of the worm 31 and fixedly connected to the workbench 1, and an operating handle 33 arranged on the transmission box 32. A reversing bevel gear group is arranged in the transmission box 32, the worm 31 is coaxially fixedly connected to one bevel gear in the transmission box 32, the operating handle 33 is coaxially fixedly connected to another bevel gear in the transmission box 32, and the worm wheel 30 is meshed with the worm 31.

[0032] In the process of gradually tightening the steel cord body 5 between the first clamp 4 and the second clamp 9, the telescopic actuator on the tension gauge 3 drives the first clamp 4 to move, and the movement of the first clamp 4 gradually stretches the steel cord body 5. In this process, the first clamp 4 also drives the second clamp 9 to move a little distance through the steel cord body 5, so that the second clamp 9 drives the connecting strip 8 to move, thereby stretching the reset tension spring 13. In the above process, the movement of the connecting strip 8 drives the supporting block 11 Movement, the movement of the supporting block 11 will drive the contact inclined plate 14 to contact the transmission rack 15, causing the transmission rack 15 to move, and the movement of the transmission rack 15 drives the transfer rack 18 to move through the transmission gear 24, causing the transfer rack 18 to drive the locking plug 20 to be pulled out of the limit tooth 41. It should be noted that at this time, the steel cord body 5 has just been tightened, the locking plug 20 has just been pulled out of the limit tooth 41, and the marking pen 17 has not yet contacted the recording plate 42 (the breaking force tensile test has not started at this time). Afterwards, twist the operating handle 33 to rotate the worm 31 through the transmission box 32, the rotation of the worm 31 drives the worm wheel 30 to rotate, the rotation of the worm wheel 30 drives the bearing shaft 29 to rotate, the rotation of the bearing shaft 29 drives the winding wheel 28 to rotate, the winding wheel 28 rotates to wind and stretch, and then with the cooperation of the pulley group, the pull rope 36 pulls the movable box 38 to move, the movement of the movable box 38 drives the bearing box 6 to move through the bearing buckle plate 37, at this time the bearing box 6 and the connecting strip 8 are relatively displaced until the connecting strip 8 and the side wall of the bearing box 6 are in hard contact, at this time the marking pen 17 is fully extended and contacts the recording board 42, and then the bearing box 6 drives the connecting strip 8 to move together (at this time the breaking force tensile test begins).

[0033] In order to ensure that the carrier box 6 can be successfully reset after the experiment, the following features are also specifically provided: The brake mechanism also includes a limit box 22 fixedly arranged on the side of the transfer rack 18 close to the locking plug plate 20, a trigger rod 23 slidably arranged in the limit box 22, two limit rods 25 symmetrically arranged on the side of the carrier box 6 away from the second clamping claw 9, a toggle cross plate 26 elastically slidably arranged on the two limit rods 25, and an abutment bevel groove 21 opened on each locking plug plate 20, one end of the trigger rod 23 close to the locking plug plate 20 contacts the abutment bevel groove 21, and the end of the trigger rod 23 away from the locking plug plate 20 is slidably connected to the toggle cross plate 26.

[0034] When in use, by pressing the toggle cross plate 26, the trigger rod 23 is driven to move, so that the trigger rod 23 is inserted into the abutting inclined groove 21, and then the locking plug plate 20 is retracted into the bearing groove, and then the position of the bearing box 6 can be freely moved, which is convenient for the staff to flexibly change the position of the bearing box 6 on the positioning slide rail 2 in the initial stage of the experiment. Since the trigger rod 23 is slidably connected to the toggle cross plate 26, when the transfer rack 18 moves, the trigger rod 23 can move freely on the toggle cross plate 26.

[0035] The working principle of the device is as follows: the staff takes off a section of the steel cord body 5 with a welding point, and then presses and toggles the cross plate 26 to pull the locking plug plate 20 out of the limit tooth 41 first, and moves the carrier box 6 to a suitable position according to the length of the steel cord body 5, and then fixes the two ends of the steel cord body 5 on the first clamping jaw 4 and the second clamping jaw 9 respectively, and the telescopic actuator on the tensile gauge 3 drives the first clamping jaw 4 to move, and the movement of the first clamping jaw 4 gradually makes the steel cord body 5 stretched and tightened, and in this process, the first clamping jaw 4 will also drive the second clamping jaw 9 to move a little distance through the steel cord body 5, so that the second clamping jaw 9 drives the connection The strip 8 moves, thereby stretching the reset spring 13, and in the above process, the movement of the connecting strip 8 drives the supporting block 11 to move, and the movement of the supporting block 11 drives the contact inclined plate 14 to touch the transmission rack 15, causing the transmission rack 15 to move, and the movement of the transmission rack 15 drives the transfer rack 18 to move through the transmission gear 24, causing the transfer rack 18 to drive the locking plug 20 to be pulled out of the limit tooth 41. It should be noted that at this time, the steel cord body 5 has just been tightened, the locking plug 20 has just been pulled out of the limit tooth 41, and the marker pen 17 has not yet contacted the recording plate 42 (the breaking force tensile test has not started at this time).

[0036] Afterwards, the operating handle 33 is twisted to rotate the worm 31 through the transmission box 32, and the rotation of the worm 31 drives the worm wheel 30 to rotate, and the rotation of the worm wheel 30 drives the bearing shaft 29 to rotate, and the rotation of the bearing shaft 29 drives the winding wheel 28 to rotate, and the winding wheel 28 rotates to wind and stretch, and then with the cooperation of the pulley group, the pull rope 36 pulls the movable box 38 to move, and the movement of the movable box 38 drives the bearing box 6 to move through the bearing buckle plate 37. At this time, the bearing box 6 and the connecting strip 8 are relatively displaced until the connecting strip 8 and the side wall of the bearing box 6 are in hard contact. At this time, the marking pen 17 is fully extended and contacts the recording board 42, and then the bearing box 6 drives the connecting strip 8 to move together (the breaking force tensile test starts at this time). As the bearing box 6 moves, the marking pen 17 will draw a straight line of a certain length on the recording board 42 (it should be noted that the length of the straight line drawn by the marking pen 17 on the recording board 42 at this time is the length of the steel cord body 5 stretched from tightening to the breaking of the pull rope, and the length drawn on the measuring recording board 42 The straight line length, combined with the data displayed on the tensile meter 3, can obtain the experimental data), until the steel cord body 5 is broken, then the second clamping jaw 9, the connecting strip plate 8 and the supporting block 11 are no longer subjected to the tensile force of the steel cord body 5, and then the reset tension spring 13 is reset to drive the supporting block 11 to reset, and the supporting block 11 is reset to drive the connecting strip plate 8 to reset. When the supporting block 11 is reset, the contact inclined plate 14 no longer generates a resistance force with the transmission rack 15, and then under the action of the torsion spring, the transmission gear 24 is reversed and reset, driving the transmission rack 15 to retract and reset and the transfer rack 18 to extend, the transmission rack 15 is reset to cause the marker 17 to move away from the recording board 42, and the transfer rack 18 is reset to allow the locking plug plate 20 to be reinserted into the limit tooth 41, so that the staff can record the experimental data conveniently. Through the above device, the staff can quickly carry out the breaking force experiment, and can obtain the experimental data without the need to carry out cumbersome experimental steps in the laboratory. It is relatively timely and fast, and it also saves the manufacturer's experimental cost to a certain extent.

[0037] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A manual detection device for the breaking force of a steel cord welding point, characterized in that: The invention comprises a workbench (1), two positioning rails (2) fixedly arranged on the workbench (1) in a symmetrical state, a sliding buckle plate (7) slidably arranged on each positioning rail (2), a carrying box (6) fixedly arranged on the two sliding buckle plates (7), a tensile gauge (3) fixedly arranged on one side of the carrying box (6) and connected to the workbench (1), a first clamping claw (4) fixedly arranged on the tensile gauge (3), a connecting strip plate (8) elastically slidably arranged in the carrying box (6), a second clamping claw (9) fixedly arranged on the connecting strip plate (8), a supporting vertical plate (39) fixedly arranged on the side of each positioning rail (2), and a positioning long box (40) fixedly arranged on the supporting vertical plate (39). ), a recording plate (42) fixedly arranged on the top of the positioning long box (40), a plurality of limiting teeth (41) arranged at equal intervals along the length direction of the positioning long box (40), two marking pens (17) and a locking plug plate (20) symmetrically slidably arranged in the carrier box (6), a power mechanism for driving the carrier box (6) to move and a brake mechanism for limiting the movement of the carrier box (6), the power mechanism having a pulling output end connected to the carrier box (6), the brake mechanism having a transverse output end, the transverse output end being used to drive the locking plug plate (20) and the marking pen (17) to extend or retract, and the first clamping jaw (4) and the second clamping jaw (9) being used to clamp the steel cord body (5).

2. A manual detection device for the breaking force of a steel cord welding point according to claim 1, characterized in that: The power mechanism further comprises a wheel frame (27) fixedly arranged on a side of the carrying box (6) away from the second clamping claw (9), a winding wheel (28) rotatably arranged on the wheel frame (27), a pull rope (36) wound around the winding wheel (28), a bearing buckle plate (37) fixedly arranged on the carrying box (6), and a movable box (38) fixedly arranged on the bearing buckle plate (37), wherein one end of the pull rope (36) is wound around the winding wheel (28), and the other end is connected to the movable box (38).

3. A manual detection device for the breaking force of a steel cord welding point according to claim 2, characterized in that: A limiting groove (10) is provided at the bottom of the carrying box (6), a supporting block (11) is elastically slidably arranged in the limiting groove (10), and the supporting block (11) is fixedly connected to the connecting strip plate (8).

4. A manual detection device for the breaking force of a steel cord welding point according to claim 2, characterized in that: The movable box (38) is the pulling output end of the power mechanism.

5. A manual detection device for the breaking force of a steel cord welding point according to claim 4, characterized in that: A return spring (13) is fixedly arranged on the inner wall of the carrier box (6) away from the second clamping claw (9), and a mounting hole (12) is provided on a side of the supporting block (11) close to the return spring (13). One end of the return spring (13) is fixedly connected to the inner wall of the carrier box (6), and the other end is fixedly connected to the bottom of the mounting hole (12).

6. A manual detection device for the breaking force of a steel cord welding point according to claim 5, characterized in that: The brake mechanism also includes two transmission gears (24) symmetrically arranged on both sides of the limiting groove (10), a contact inclined plate (14) fixedly arranged on both sides of the supporting block (11), a transmission rack (15) and a transfer rack (18) arranged on both sides of each transmission gear (24) and meshing with the transmission gear (24), a bearing tube (16) fixedly arranged on the side of each transmission rack (15) away from the limiting groove (10), and a bearing groove opened on the side of each transfer rack (18) away from the limiting groove (10), a marking pen (17) elastically slidably arranged in the bearing tube (16), a locking plug plate (20) elastically slidably arranged in the bearing groove, the contact inclined plate (14) respectively contacts one end of the transmission rack (15) away from the bearing tube (16), and the transmission gears (24) are rotatably connected to the bottom of the bearing box (6) through a torsion spring.

7. A manual detection device for the breaking force of a steel cord welding point according to claim 6, characterized in that: The transmission rack (15) and the transfer rack (18) are the transverse displacement output ends of the brake mechanism.

8. A manual detection device for the breaking force of a steel cord welding point according to claim 7, characterized in that: The power mechanism further comprises a bearing platform (34) arranged on a side of the bearing box (6) away from the second clamping claw (9) and fixedly connected to the workbench (1), and a fixed box (35) fixedly arranged on the bearing platform (34), a pulley block being arranged in the fixed box (35) and the movable box (38), and a pull rope (36) passing through the pulley block and being wound around the winding wheel (28).

9. A manual detection device for the breaking force of a steel cord welding point according to claim 8, characterized in that: The power mechanism further comprises a bearing shaft (29) coaxially fixedly arranged on the winding wheel (28), a worm wheel (30) coaxially fixedly arranged on one end of the bearing shaft (29) away from the winding wheel (28), a worm (31) rotatably arranged on the workbench (1) via a shaft seat, a transmission box (32) arranged at one end of the worm (31) and fixedly connected to the workbench (1), and an operating handle (33) arranged on the transmission box (32), wherein a reversing bevel gear group is arranged in the transmission box (32), the worm (31) is coaxially fixedly connected to one bevel gear in the transmission box (32), the operating handle (33) is coaxially fixedly connected to another bevel gear in the transmission box (32), and the worm wheel (30) is meshed with the worm (31).

10. A manual detection device for the breaking force of a steel cord welding point according to claim 9, characterized in that: The brake mechanism further comprises a limit box (22) fixedly arranged on a side of the transfer rack (18) close to the locking plug plate (20), a trigger rod (23) slidably arranged in the limit box (22), two limit rods (25) symmetrically arranged on a side of the carrier box (6) away from the second clamping claw (9), a toggle transverse plate (26) elastically slidably arranged on the two limit rods (25), and a contact oblique groove (21) provided on each locking plug plate (20), wherein one end of the trigger rod (23) close to the locking plug plate (20) contacts the contact oblique groove (21), and one end of the trigger rod (23) away from the locking plug plate (20) is slidably connected to the toggle transverse plate (26).

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