Sheath-core wire tension strength detection device

Abstract

The invention belongs to the technical field of sheath-core wire detection equipment, and discloses a sheath-core wire tension strength detection device which is technically characterized by comprising a workbench, fixing plates are fixedly mounted on the surface of the workbench, a transverse plate is slidably mounted between the two fixing plates, and a bearing column is rotatably mounted between the two fixing plates; a winding roller is arranged on the surface of the bearing column, a sheath core wire body is wound on the surface of the winding roller, a driving assembly is arranged on the surface of the fixing plate, a detection mechanism is arranged on the surface of the transverse plate, and the detection mechanism comprises a clamping assembly and an extrusion assembly. Through mutual cooperation of the clamping assembly, the extrusion assembly and the driving assembly, the winding process and the detection process of the sheath-core wire body can be conveniently switched, in the winding process, the tensile strength of the sheath-core wire body can be randomly and repeatedly detected, the sheath-core wire body does not need to be cut off during detection, and the detection efficiency is improved. And the detection efficiency and the detection precision are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of sheath-core wire detection equipment, in particular to a sheath-core wire tensile strength detection device. Background Art

[0002] Core-sheath yarn is a chemical fiber with a unique structure. Polyesters with different melting points are spun through a dual-channel process. Through specialized spinnerets or post-processing, the fiber product develops a unique core-sheath structure. It is primarily used in products such as desiccant sticks, filter cores, volatile sticks, filter tips, and marker tips. Core-sheath yarn is widely used in the chemical and manufacturing industries.

[0003] During production, the sheath-core yarn is typically wound into a roll. During this process, it's often necessary to test the elasticity of the sheath-core yarn to prevent substandard yarn from entering the market. Currently, this testing is primarily done through sampling, typically by cutting a section of the sheath-core yarn and testing its elasticity.

[0004] The detection accuracy depends on the number of test samples. The more test samples there are, the higher the detection accuracy. The existing sampling and detection method can only intercept a small amount of skin-core wire for testing. Not only is the work intensity high, but the detection accuracy and efficiency are also low, and the detection effect is poor, which can easily lead to skin-core wires with unqualified elasticity and tensile strength entering the market. Summary of the Invention

[0005] The object of the present invention is to provide a sheath-core wire tensile strength detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The lifting mechanism is a kind of key which is further comprised of a plurality of lifting plates, a plurality of lifting plates, a plurality of lifting plates respectively installed on the lifting plate, and a plurality of lifting plates respectively installed on the lifting plate.

[0008] As a further solution of the present invention: the clamping assembly includes two groups of relatively distributed lower clamping plates fixedly installed on the surface of the workbench, two groups of relatively distributed upper clamping plates are slidably installed on the surface of the horizontal plate along the vertical direction, the upper clamping plate is located directly above the lower clamping plate, and a fixing frame is fixedly installed on the surface of the horizontal plate and is sleeved on the outer side of the upper clamping plate, an extrusion spring is fixedly installed on the top of the fixing frame, and the telescopic end of the extrusion spring is connected to the upper clamping plate.

[0009] As a further solution of the present invention: the extrusion assembly includes two groups of relatively distributed side plates fixedly installed on the bottom wall of the horizontal plate, and the bottom ends of the two groups of side plates are jointly rotatably installed with extrusion rollers, and the extrusion rollers are located between the two groups of upper clamping plates.

[0010] As a further solution of the present invention: the driving assembly includes multiple groups of vertical rods fixedly installed on the surface of the horizontal plate, and the top ends of the multiple groups of vertical rods are jointly fixedly installed with a horizontal control bar, the surface of the control bar is provided with a guide groove, and a rotating column is rotatably installed on the surface of a group of fixed plates, and the rotating column is fixedly installed with a control disk toward one end of the control bar, and a guide column is provided at a position on the surface of the control disk deviating from the center of the circle, and the guide column is inserted into the guide groove, one end of the bearing column extends to the outside of the fixed plate and is fixedly installed with a first positioning gear disk, and the end of the rotating column away from the control disk extends to the outside of the fixed plate and is fixedly installed with a second positioning gear disk, the side wall of the fixed plate is fixedly installed with a bearing frame, and the surface of the bearing frame is fixedly installed with a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is fixedly installed with a motor, and the output shaft of the motor is fixedly installed with a transmission gear disk, and the first positioning gear disk and the second positioning gear disk are respectively engaged with the transmission gear disk.

[0011] As a further solution of the present invention: the control panel surface is provided with multiple groups of positioning screw holes, which are distributed in parallel along the radius of the control panel, and the end of the guide column is provided with external threads that cooperate with the positioning screw holes.

[0012] As a further solution of the present invention: a U-shaped frame is fixedly installed on the side wall of the fixed plate, and the rotating column is rotatably connected to the U-shaped frame.

[0013] As a further solution of the present invention: a bottom hole is provided on the surface of the workbench and cooperates with the squeezing roller.

[0014] As a further solution of the present invention: limiting rods are fixedly installed on the two opposite side walls of the two groups of fixed plates, and the limiting rods are slidably connected to the transverse plate along the vertical direction.

[0015] Compared with the prior art, the beneficial effect of the present invention is that by arranging the clamping assembly and the extrusion assembly to cooperate with each other, the sheath-core wire body on the outside of the winding roller can be quickly fixed and extruded for detection, thereby effectively improving the detection efficiency.

[0016] By arranging the clamping assembly, the extrusion assembly and the drive assembly to cooperate with each other, the winding process of the core wire body and the testing process of the core wire body can be conveniently switched. During the winding process, the tensile strength of the core wire body can be randomly tested multiple times, and the core wire body does not need to be cut during the test, which effectively improves the detection efficiency and detection accuracy. This solves the problem that the existing sampling detection method can only intercept a small amount of core wire for testing, which not only has high work intensity but also has low detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a sheath-core wire tensile strength testing device provided in an embodiment of the present invention Figure 1 .

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a sheath-core wire tensile strength testing device provided in an embodiment of the present invention Figure 2 .

[0019] Figure 3 This is a schematic diagram of the main structure of a sheath-core wire tensile strength detection device provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of a transverse plate and its connection structure in a sheath-core wire tensile strength testing device provided in an embodiment of the present invention.

[0021] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of A in the middle.

[0022] Among them: 1- workbench, 2- fixed plate, 3- horizontal plate, 4- bearing column, 41- winding roller, 42- skin core wire body, 5- detection mechanism, 51- clamping assembly, 511- lower clamping plate, 512- upper clamping plate, 513- fixed frame, 514- extrusion spring, 52- extrusion assembly, 521- side plate, 522- extrusion roller, 6- drive assembly, 61- vertical rod, 62- control bar, 63- rotating column, 64- control disk, 65- guide groove, 66- guide column, 67- first positioning gear disc, 68- second positioning gear disc, 69- bearing frame, 610- hydraulic cylinder, 611- motor, 612- transmission gear disc, 7- positioning screw hole, 8- U-shaped frame, 9- bottom hole, 10- limit rod. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, it is a structural diagram of a sheath-core wire tensile strength detection device provided by an embodiment of the present invention, comprising a workbench 1, wherein two sets of relatively distributed fixed plates 2 are fixedly installed on the surface of the workbench 1, a horizontal plate 3 is slidably installed along the vertical direction between the two sets of fixed plates 2, a bearing column 4 is rotatably installed between the two sets of fixed plates 2, a winding roller 41 is provided on the surface of the bearing column 4, and a sheath-core wire body 42 is wound on the surface of the winding roller 41, and a driving component 6 is provided on the surface of the fixed plate 2, and the driving component 6 is respectively connected to the horizontal plate 3 and the bearing column 4, and the driving component 6 is used to control the bearing column 4 to rotate between the two sets of fixed plates 2, and the bearing column 4 stops When the rotation is stopped, the driving assembly 6 is used to control the horizontal plate 3 to move in the vertical direction between the two groups of fixed plates 2. The surface of the horizontal plate 3 is provided with a detection mechanism 5 that cooperates with the core wire body 42. The detection mechanism 5 includes a clamping assembly 51 and an extrusion assembly 52. The clamping assembly 51 is located on the surface of the horizontal plate 3. When the horizontal plate 3 moves downward, the clamping assembly 51 is used to fix a section of the core wire body 42 outside the winding roller 41. The extrusion assembly 52 is located below the horizontal plate 3. When the horizontal plate 3 moves downward, the extrusion assembly 52 is used to apply downward pressure to the fixed core wire body 42 and thereby extrude the core wire body 42 into a broken line structure.

[0026] After the sheath-core wire body 42 is produced and processed, the sheath-core wire body 42 is passed between the two sets of fixed plates 2 and wound on the surface of the winding roller 41. The driving component 6 controls the rotation of the supporting column 4, and the supporting column 4 drives the winding roller 41 to rotate synchronously to reel the sheath-core wire body 42. During the continuous reeling process, when the sheath-core wire body 42 needs to be inspected, the driving component 6 can control the supporting column 4 to stop rotating. After the supporting column 4 stops rotating, the driving component 6 can control the cross plate 3 to move vertically downward between the two sets of fixed plates 2. When the cross plate 3 moves downward, the clamping component 51 can fix the two ends of the sheath-core wire body 42 between the two sets of fixed plates 2. After the position of the core wire body 42 between the two sets of fixed plates 2 is fixed, the cross plate 3 continues to move downward, and the extrusion assembly 52 can apply vertical downward pressure to this section of the core wire body 42, thereby pressing this section of the core wire body 42 into a broken line structure. In the process of extruding the core wire body 42, the elastic tension of the core wire body 42 can be automatically detected. When the elastic tension of the core wire body 42 is poor, the core wire body 42 will directly break under the extrusion of the extrusion assembly 52. When the elastic tension of the core wire body 42 reaches the qualified standard, the drive assembly 6 controls the cross plate 3 to move vertically upward to the original position. At this time, the extrusion assembly 52 releases the extrusion force on the core wire body 42, and the clamping assembly 51 simultaneously releases the restriction on the core wire body 42. After the core wire body 42 is released from the restriction, the drive assembly 6 controls the bearing column 4 to rotate again, and the bearing column 4 drives the winding roller 41 to rotate again and rewind the core wire body 42 again. By repeating the above operation, multiple sampling tests can be performed on different length positions of the sheath-core wire body 42 during the winding process, and the sheath-core wire body 42 can be avoided from being cut during the testing process.

[0027] like Figure 1 、 Figure 3 、 Figure 4 As shown, as a preferred embodiment of the present invention, the clamping assembly 51 includes two groups of relatively distributed lower clamping plates 511 fixedly installed on the surface of the workbench 1, and two groups of relatively distributed upper clamping plates 512 are slidably installed on the surface of the horizontal plate 3 along the vertical direction. The upper clamping plate 512 is located directly above the lower clamping plate 511, and a fixing frame 513 is fixedly installed on the surface of the horizontal plate 3 and is sleeved on the outer side of the upper clamping plate 512. An extrusion spring 514 is fixedly installed on the top of the fixing frame 513, and the telescopic end of the extrusion spring 514 is connected to the upper clamping plate 512.

[0028] Initially, the upper clamping plate 512 is located above the lower clamping plate 511, and the supporting column 4 drives the winding roller 41 to rotate and then rewind the core wire body 42, and the core wire body 42 passes through the gap between the upper clamping plate 512 and the lower clamping plate 511. When it is necessary to detect the core wire body 42, the driving component 6 controls the supporting column 4 to stop rotating. After the supporting column 4 stops rotating, the driving component 6 controls the cross plate 3 to move vertically downward between the two groups of fixed plates 2. The cross plate 3 drives the upper clamping plate 512 to move downward synchronously. When moving downward, the upper clamping plate 512 cooperates with the lower clamping plate 511 to stably squeeze and fix the two ends of the core wire body 42 between the two groups of fixed plates 2. After being squeezed and fixed, the cross plate 3 continues to move downward, and the squeezing component 52 can apply vertical downward pressure to this section of the core wire body 42 and then detect its elastic tension. When the horizontal plate 3 moves downward, the extrusion spring 514 continuously applies downward pressure to the upper clamping plate 512, and the upper clamping plate 512 slides relatively on the surface of the horizontal plate 3, so that the relative position of the upper clamping plate 512 and the horizontal plate 3 can be easily adjusted.

[0029] like Figure 3 、 Figure 4 As shown, as a preferred embodiment of the present invention, the extrusion assembly 52 includes two groups of relatively distributed side plates 521 fixedly installed on the bottom wall of the horizontal plate 3, and the bottom ends of the two groups of side plates 521 are jointly rotated and installed with extrusion rollers 522, and the extrusion rollers 522 are located between the two groups of upper clamping plates 512.

[0030] After the core wire body 42 is squeezed and fixed, the horizontal plate 3 continues to move downward. The horizontal plate 3 cooperates with the side plate 521 to drive the squeezing roller 522 to move downward synchronously. The squeezing roller 522 squeezes the core wire body 42 when moving downward. The squeezing roller 522 continues to move downward, which can gradually increase the pressure on the core wire body 42. As the deformation degree of the core wire body 42 increases, the elastic tension on the core wire body 42 increases synchronously. When the elastic tension of the core wire body 42 is tested to be qualified, the horizontal plate 3 moves upward and drives the squeezing roller 522 to move upward synchronously. After the squeezing roller 522 releases the squeezing force on the core wire body 42, the winding roller 41 can rewind the core wire body 42 again.

[0031] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5As shown in FIG. 1 , as a preferred embodiment of the present invention, the driving assembly 6 includes a plurality of vertical rods 61 fixedly mounted on the surface of the horizontal plate 3, and a horizontal control strip 62 is fixedly mounted on the top of the plurality of vertical rods 61. A guide groove 65 is provided on the surface of the control strip 62. A rotating column 63 is rotatably mounted on the surface of a group of fixed plates 2. A control disk 64 is fixedly mounted on one end of the rotating column 63 facing the control strip 62. A guide column 66 is provided on the surface of the control disk 64 at a position deviating from the center of the circle. The guide column 66 is inserted into the guide groove 65, and one end of the bearing column 4 extends It extends to the outside of the fixed plate 2 and is fixedly installed with a first positioning gear disc 67. The end of the rotating column 63 away from the control plate 64 extends to the outside of the fixed plate 2 and is fixedly installed with a second positioning gear disc 68. A supporting frame 69 is fixedly installed on the side wall of the fixed plate 2. A hydraulic cylinder 610 is fixedly installed on the surface of the supporting frame 69. A motor 611 is fixedly installed on the telescopic end of the hydraulic cylinder 610. A transmission gear disc 612 is fixedly installed on the output shaft of the motor 611. The first positioning gear disc 67 and the second positioning gear disc 68 are respectively engaged with the transmission gear disc 612.

[0032] Initially, the transmission gear disc 612 is engaged and connected with the first positioning gear disc 67, and the transmission gear disc 612 and the first positioning gear disc 68 are separated from each other. At this time, the motor 611 drives the transmission gear disc 612 to rotate, and the transmission gear disc 612 is engaged and transmitted with the first positioning gear disc 67, which can drive the supporting column 4 to rotate between the two sets of fixed plates 2. The supporting column 4 drives the winding roller 41 to rotate synchronously and then winds the skin-core wire body 42. During the continuous winding process, when it is necessary to inspect the skin core wire body 42, the motor 611 stops rotating, and the hydraulic cylinder 610 pulls the motor 611 and the transmission gear plate 612 to move. At this time, the transmission gear plate 612 and the first positioning gear plate 67 are separated from each other. After the transmission gear plate 612 and the second positioning gear plate 68 are engaged with each other, the motor 611 drives the transmission gear plate 612 to rotate again, and the transmission gear plate 612 and the second positioning gear plate 68 are engaged for transmission, which can drive the rotating column 63 to rotate, and the rotating column 63 drives the control disk 64 to rotate synchronously, and the control disk 64 drives the guide column 66 to rotate synchronously, and the guide column 66 cooperates with the guide groove 65 to push the control bar 62 to move back and forth in the vertical direction. When the control bar 62 moves vertically downward, the control bar 62 cooperates with the vertical rod 61 to drive the horizontal plate 3 to move vertically downward between the two sets of fixed plates 2, thereby clamping, fixing and squeezing the skin core wire body 42. After the detection is completed, the control bar 62 moves vertically upward, and the restriction on the sheath-core wire body 42 is released, and the sheath-core wire body 42 can be reeled again.

[0033] like Figure 3 、 Figure 4 、 Figure 5As shown, as a preferred embodiment of the present invention, the control disk 64 has multiple groups of positioning screw holes 7 on its surface, and the multiple groups of positioning screw holes 7 are distributed in parallel along the radial direction of the control disk 64. The end of the guide column 66 is provided with an external thread that cooperates with the positioning screw hole 7.

[0034] Through the mutual cooperation of the external thread at the end of the guide column 66 and the positioning screw hole 7, the guide column 66 can be conveniently installed and disassembled on the surface of the control panel 64. By installing the guide column 66 in the positioning screw hole 7 at different positions, the rotation radius of the guide column 66 can be conveniently adjusted, thereby adjusting the amplitude of the reciprocating movement of the horizontal plate 3 in the vertical direction. The amplitude of the movement of the horizontal plate 3 in the vertical direction can be used to adjust the degree of extrusion of the sheath-core wire body 42 by the extrusion roller 522, thereby adjusting the tension value exerted on the sheath-core wire body 42 during detection.

[0035] like Figure 1 、 Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, a U-shaped frame 8 is fixedly mounted on the side wall of the fixed plate 2, and the rotating column 63 is rotatably connected to the U-shaped frame 8. The U-shaped frame 8 cooperates with the fixed plate 2 to further improve the stability of the rotating column 63 during rotation.

[0036] like Figure 4 As shown, as a preferred embodiment of the present invention, the surface of the workbench 1 is provided with a bottom hole 9 that cooperates with the squeezing roller 522. When the squeezing roller 522 moves vertically downward, the bottom hole 9 can effectively prevent the squeezing roller 522 from colliding with the surface of the workbench 1.

[0037] like Figure 3 As shown in FIG. 1 , as a preferred embodiment of the present invention, the two opposite side walls of the two sets of fixed plates 2 are respectively fixedly mounted with limiting rods 10 , and the limiting rods 10 are slidably connected to the transverse plate 3 along the vertical direction.

[0038] Multiple groups of limiting rods 10 can effectively improve the stability of the horizontal plate 3 when it moves in the vertical direction.

[0039] The working principle of the present invention is: initially, the upper clamping plate 512 is located above the lower clamping plate 511. After the sheath-core wire body 42 is produced and processed, the sheath-core wire body 42 passes through the gap between the upper clamping plate 512 and the lower clamping plate 511 and is wound on the surface of the winding roller 41. The motor 611 drives the transmission gear plate 612 to rotate, and the transmission gear plate 612 engages with the first positioning gear plate 67 for transmission, which can drive the supporting column 4 to rotate between the two sets of fixed plates 2. The supporting column 4 drives the winding roller 41 to rotate synchronously and then winds the sheath-core wire body 42.

[0040] During the continuous winding process, when the sheath-core wire body 42 needs to be inspected, the motor 611 stops rotating, and the hydraulic cylinder 610 pulls the motor 611 and the transmission gear disc 612 to move. At this time, the transmission gear disc 612 and the first positioning gear disc 67 are separated from each other. After the transmission gear disc 612 and the second positioning gear disc 68 are engaged with each other, the motor 611 drives the transmission gear disc 612 to rotate again. The transmission gear disc 612 and the second positioning gear disc 68 are engaged for transmission, which can drive the rotating column 63 to rotate, and the rotating column 63 drives the control disk 64 to rotate synchronously. The control disk 64 drives the guide column 66 to rotate synchronously, and the guide column 66 cooperates with the guide groove 65 to push the control bar 62 to move back and forth in the vertical direction.

[0041] When the control bar 62 moves vertically downward, the control bar 62 cooperates with the vertical rod 61 to drive the cross plate 3 to move vertically downward between the two sets of fixed plates 2. The cross plate 3 drives the upper clamping plate 512 to move downward synchronously. When the upper clamping plate 512 moves downward, it cooperates with the lower clamping plate 511 to stably squeeze and fix the two ends of the core wire body 42 between the two sets of fixed plates 2. After being squeezed and fixed, the cross plate 3 continues to move downward. The cross plate 3 cooperates with the side plates 521 to drive the squeezing rollers 522 to move downward synchronously. The squeezing rollers 522 squeeze the core wire body 42 as they move downward. The squeezing rollers 522 continue to move downward, gradually increasing the pressure on the core wire body 42. As the deformation of the core wire body 42 increases, the elastic tension on the core wire body 42 increases synchronously. When the elastic tension of the core wire body 42 passes the test, the cross plate 3 moves upward, thereby driving the squeezing rollers 522 to move upward synchronously. After the squeezing roller 522 releases the squeezing force on the sheath-core wire body 42, the hydraulic cylinder 610 drives the motor 611 and the transmission gear plate 612 to move, so that the transmission gear plate 612 engages with the first positioning gear plate 67, and the supporting column 4 drives the winding roller 41 to rotate again, thereby rewinding the sheath-core wire body 42. The above operation is repeated in this way. During the winding process, multiple sampling tests can be performed on different length positions of the sheath-core wire body 42, and the sheath-core wire body 42 can be avoided from being cut during the testing process.

[0042] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A sheath-core wire tensile strength testing device, comprising a workbench, wherein two sets of relatively distributed fixed plates are fixedly mounted on the surface of the workbench, a horizontal plate is slidably mounted between the two sets of fixed plates in the vertical direction, a bearing column is rotatably mounted between the two sets of fixed plates, a winding roller is provided on the surface of the bearing column, and the sheath-core wire body is wound on the surface of the winding roller, characterized in that: A driving assembly is provided on the surface of the fixed plate, and the driving assembly is connected to the cross plate and the bearing column respectively. The driving assembly is used to control the bearing column to rotate between the two sets of fixed plates. When the bearing column stops rotating, the driving assembly is used to control the cross plate to move vertically between the two sets of fixed plates. The surface of the horizontal plate is provided with a detection mechanism that cooperates with the sheath-core wire body, and the detection mechanism includes a clamping component and an extrusion component; The clamping assembly is located on the surface of the transverse plate. When the transverse plate moves downward, the clamping assembly is used to fix a section of the sheath-core wire body outside the winding roller; The extrusion assembly is located below the transverse plate. When the transverse plate moves downward, the extrusion assembly is used to apply downward pressure to the fixed sheath-core wire body, thereby extruding the sheath-core wire body into a broken-line structure.

2. A sheath-core wire tensile strength testing device according to claim 1, characterized in that: The clamping assembly includes two groups of relatively distributed lower clamping plates fixedly installed on the surface of the workbench, two groups of relatively distributed upper clamping plates slidingly installed on the surface of the horizontal plate along the vertical direction, the upper clamping plate is located directly above the lower clamping plate, and a fixing frame fixedly installed on the surface of the horizontal plate is sleeved on the outer side of the upper clamping plate, an extrusion spring is fixedly installed on the top of the fixing frame, and the telescopic end of the extrusion spring is connected to the upper clamping plate.

3. A sheath-core wire tensile strength testing device according to claim 2, characterized in that: The extrusion assembly includes two groups of relatively distributed side plates fixedly installed on the bottom wall of the transverse plate, and the bottom ends of the two groups of side plates are jointly rotatably installed with extrusion rollers, and the extrusion rollers are located between the two groups of upper clamping plates.

4. The sheath-core wire tensile strength testing device according to claim 1, characterized in that: The driving member is a pair of rotating shafts, each of which is equipped with a pair of rotating shafts, and the rotating shaft is equipped with a pair of rotating shafts, each of which is equipped with a pair of rotating shafts, and the rotating shaft is equipped with a pair of rotating shafts.

5. The sheath-core wire tensile strength testing device according to claim 4, characterized in that: The control panel has a plurality of positioning screw holes on its surface, which are arranged in parallel along the radial direction of the control panel. The end of the guide column is provided with external threads that cooperate with the positioning screw holes.

6. The sheath-core wire tensile strength testing device according to claim 4, characterized in that: A U-shaped frame is fixedly installed on the side wall of the fixed plate, and the rotating column is rotatably connected to the U-shaped frame.

7. The sheath-core wire tensile strength testing device according to claim 3, characterized in that: The surface of the workbench is provided with a bottom hole which cooperates with the squeezing roller.

8. The sheath-core wire tensile strength testing device according to claim 1, characterized in that: Limiting rods are fixedly installed on the two opposite side walls of the two groups of fixing plates, and the limiting rods are slidably connected with the transverse plates along the vertical direction.

Images