Tensile test mechanism for self-induction fire extinguishing adhesive tape

Abstract

The invention belongs to the technical field of fire extinguishing adhesive tape testing, and particularly relates to a self-induction fire extinguishing adhesive tape tensile testing mechanism which comprises a testing box, a testing table is fixedly arranged in the testing box, a movable stretching assembly is arranged on the testing table, and the movable stretching assembly is connected with a first clamping mechanism through a tension displayer; a second clamping mechanism is arranged on the test bench, the second clamping mechanism corresponds to the first clamping mechanism, a winding frame is arranged on one side of the second clamping mechanism, and a wound fire extinguishing adhesive tape is placed on the winding frame; a cutting and taking mechanism is arranged on the back of the test box and is used for cutting and taking down the tested fire extinguishing adhesive tape from the first clamping mechanism and the second clamping mechanism; according to the invention, an operator does not need to manually replace and clamp a plurality of to-be-tested fire extinguishing adhesive tape samples, so that the accuracy and the high efficiency of the tensile test of the fire extinguishing adhesive tape can be improved, and the test safety can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fire extinguishing tape testing, and in particular relates to a self-inductive fire extinguishing tape tensile testing mechanism. Background Art

[0002] Fire extinguishing tapes are mostly wrapped around the outer surface of wires or the connection positions of wires. Existing fire extinguishing tapes usually lay dry powder fire extinguishing agents or flame retardant materials such as mica on the adhesive to make them flame retardant.

[0003] In order to improve the use scenarios and scope of fire extinguishing tapes, it is necessary to conduct tensile testing or testing on the produced and processed self-induction fire extinguishing tapes.

[0004] The existing mechanisms or equipment for tensile testing of fire extinguishing tapes, in order to improve the accuracy and precision of the tensile test, mostly divide the fire extinguishing tape to be tested into multiple test samples of equal length, and then clamp the multiple test samples to the test mechanism or equipment for tensile testing. Obviously, this method requires the operator to frequently clamp the test samples into the test equipment one by one in order to test multiple sets of data on the fire extinguishing tape, which not only reduces the efficiency of the tensile test of the fire extinguishing tape, but also easily causes safety hazards. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a self-sensing fire extinguishing tape tensile test mechanism, comprising a test box, wherein a test bench is fixedly provided in the test box, wherein a movable tensile assembly is arranged on the test bench, wherein the movable tensile assembly is connected to a first clamping mechanism via a tension display; wherein a second clamping mechanism is arranged on the test bench, and the second clamping mechanism corresponds to the first clamping mechanism, wherein a winding rack is arranged on one side of the second clamping mechanism, wherein a wound fire extinguishing tape is placed on the winding rack; wherein a cutting and taking mechanism is arranged on the back of the test box, wherein the cutting and taking mechanism is used to cut and take off the tested fire extinguishing tape from the first clamping mechanism and the second clamping mechanism.

[0007] Furthermore, the movable stretching assembly includes a driving screw, a sliding block, a back plate and a dial. The driving screw is rotatably installed in a movable groove opened on the test bench. The driving screw is sleeved with a sliding block through a ball nut. A back plate is vertically fixed to the upper surface of the sliding block. The back plate is connected to the tension display, and the output end of the tension display is connected to the first clamping mechanism. A dial is provided on the upper surface of the test bench at the notch of the movable groove.

[0008] Furthermore, the first clamping mechanism and the second clamping mechanism have the same structure, including a bottom slider, a clamping base, a clamping cylinder, a clamping plate and a guide rod, the symmetrical bottom sliders are arranged in the movable groove, and a clamping base is fixedly provided on the upper surface of each bottom slider, the front and rear width of the clamping base is greater than the width of the movable groove, the clamping base on the right side is connected to the tension display, and the side of the clamping base on the left side is detachably installed with a winding rack, and a clamping cylinder is fixedly provided on the side of each clamping base, and the output rod of the clamping cylinder is connected to the clamping plate, the clamping plate is located above the clamping base, and the lower surface of the clamping plate is slidably inserted into the clamping base through a plurality of guide rods.

[0009] Furthermore, the bottom slider on the left is connected to the driving screw through a transmission connection assembly, and the transmission connection assembly includes a moving block, an electromagnetic ring, a metal ring, a connecting strip, a clamping block, a spring part and a protruding block. The moving block is connected to the bottom slider on the left, and the moving block is sleeved on the driving screw through a ball nut. An annular cavity is provided in the moving block, and an electromagnetic ring is insulated in the annular cavity. The outer ring surface of the ball nut in the moving block is insulated and sleeved with a metal ring, and the outer ring surface of the metal ring is in contact with the electromagnetic ring. The clamping bottom on the left A recessed groove is provided upwardly at the bottom of the seat, and a connecting strip is slidably provided in the recessed groove, the two ends of the connecting strip are slidably sleeved on the guide rod, and a snap-fit ​​block is fixedly provided on the lower surface of the connecting strip, the two ends of the connecting strip are connected to the recessed groove through a spring member, and the spring member is sleeved on the guide rod, the bottom of the guide rod passes downward through the connecting strip to provide a limiting block, the upper surface of the limiting block is also connected to the lower surface of the connecting strip through a spring member, and a raised block is provided on the large dial of the dial, and the raised block cooperates with the snap-fit ​​groove provided on the lower surface of the snap-fit ​​block.

[0010] Furthermore, the cutting and material-taking mechanism includes a guide rail assembly, a push cylinder, a clamping cylinder, a connecting long rod and a cutting knife. A guide rail assembly is fixedly provided in the back of the test box, and two sliders are slidably provided on the guide rail of the guide rail assembly. The outer end surface of each slider is provided with a push cylinder, and a clamping cylinder is fixedly provided at the end of the output rod of the push cylinder. The clamping claw of the clamping cylinder faces the fire extinguishing tape, and a connecting long rod is movably connected to the cylinder body of the clamping cylinder, and the other end of the connecting long rod is connected to the clamping base, and a cutting knife is provided between the connecting long rod connected to the clamping base near the left side and the clamping cylinder.

[0011] Furthermore, the cutting and feeding mechanism also includes a guide support rod, an adjusting washer and an adjusting nut. The connecting long rod is provided with a guide long groove along its length direction. The side of the cylinder body of the clamping cylinder is connected to the guide support rod, and the free end of the guide support rod passes through the guide long groove and is connected to the adjusting nut. Two adjusting washers are sleeved on the guide support rod, and the two adjusting washers are respectively located on both sides of the guide long groove. A spring member is sleeved on the guide support rod, and the two ends of the spring member are respectively connected to the adjusting washer and the connecting block.

[0012] Furthermore, a cutting knife is detachably mounted on the side of the clamping cylinder, the front-to-back horizontal length of the cutting knife is the same as the front-to-back length of the clamping claw of the clamping cylinder, and the blade of the cutting knife is flush with the jaw opening of the clamping claw of the clamping cylinder.

[0013] Furthermore, a collection box is provided in the material dropping area formed inside the test box.

[0014] The present invention has the following beneficial effects:

[0015] 1. The present invention provides a winding rack on one side of the second clamping mechanism, and cooperates with the first clamping mechanism and the cutting and taking mechanism. The first clamping mechanism can pull the wound fire extinguishing tape to a certain length, and then cooperate with the clamping and fixing of the second clamping mechanism to perform a tensile test on the fire extinguishing tape pulled out to a certain length, and the cutting and taking mechanism can cut and take away the tested fire extinguishing tape, which is convenient for performing a tensile test on the second section of the test sample. By repeating the above steps in sequence, the fire extinguishing tape can be subjected to tensile tests of multiple groups of data. Moreover, since the fire extinguishing tape to be tested is wound up and placed in the test box, and can be subjected to automatic fixed-length sampling test, there is no need for the operator to manually replace and clamp multiple fire extinguishing tape samples to be tested, thereby improving the accuracy and efficiency of the tensile test of the fire extinguishing tape and improving the safety of the test.

[0016] 2. The present invention connects the clamping base on the left side to the driving screw through a transmission connection assembly. The rotation of the driving screw can drive the clamping base on the left side to adjust the position and slide on the test bench, thereby facilitating the increase of the sliding distance of the first clamping mechanism on the test bench, so that it can pull out fire extinguishing tapes of different lengths and perform precise tensile test processing.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment disclosed in the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a test box according to an embodiment of the present invention;

[0021] Figure 3 It is a diagram of the coordination structure of the mobile stretching assembly and the first clamping mechanism of the disclosed embodiment of the present invention;

[0022] Figure 4 It is a diagram of the matching structure of the winding frame and the clamping base according to the disclosed embodiment of the present invention;

[0023] Figure 5 A cross-sectional view of a moving block according to an embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the cutting and feeding mechanism of the disclosed embodiment of the present invention.

[0025] In the figure: 1. Test box;

[0026] 2. Test bench; 21. Mobile tank;

[0027] 3. Mobile stretching assembly; 31. Driving screw; 32. Sliding block; 33. Back plate; 34. Scale plate;

[0028] 4. Tension display;

[0029] 5. First clamping mechanism; 51. Bottom slider; 52. Clamping base; 521. Concave groove; 53. Clamping cylinder; 54. Clamping plate; 55. Guide rod; 56. Winding frame;

[0030] 6. Transmission connection assembly; 61. Moving block; 62. Electromagnetic ring; 63. Metal ring; 64. Connecting strip; 65. Snap-fit ​​block; 66. Spring member; 67. Protruding block;

[0031] 7. Cutting and feeding mechanism; 71. Guide rail assembly; 72. Push cylinder; 73. Clamping claw cylinder; 74. Connecting long rod; 741. Guide long groove; 75. Cutting knife; 76. Guide support rod; 77. Adjusting washer; 78. Adjusting nut;

[0032] 8. Collection box. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] See also Figure 1-Figure 6 As shown, the present invention is a self-sensing fire extinguishing tape tensile test mechanism, comprising a test box 1, wherein a test table 2 is fixedly arranged in the test box 1, wherein a movable tensile assembly 3 is arranged on the test table 2, wherein the movable tensile assembly 3 is connected to a first clamping mechanism 5 via a tension display 4; wherein a second clamping mechanism is arranged on the test table 2, and the second clamping mechanism corresponds to the first clamping mechanism 5, wherein a winding rack 56 is arranged on one side of the second clamping mechanism, wherein a wound fire extinguishing tape is placed on the winding rack 56; wherein a cutting and taking mechanism 7 is arranged on the back of the test box 1, wherein the cutting and taking mechanism 7 is used to cut and take off the tested fire extinguishing tape from the first clamping mechanism 5 and the second clamping mechanism;

[0036] Specifically, the present invention sets a first clamping mechanism 5 and a second clamping mechanism on the test table 2 of the test box 1, and a reel 56 is set on one side of the second clamping mechanism. When the fire extinguishing tape needs to be subjected to a tensile test, the door of the test box 1 is first opened, and then the rolled fire extinguishing tape is placed on the opened reel 56, and the free end of the fire extinguishing tape is passed through the second clamping mechanism. When the fire extinguishing tape needs to be subjected to a tensile test, the mobile stretching assembly 3 drives the tension display 4 and the first clamping mechanism 5 to move toward one side of the second clamping mechanism. When the first clamping mechanism 5 clamps the free end of the extended fire extinguishing tape, the tension display 4 and the first clamping mechanism 5 are moved to the second clamping mechanism. After being fixed, the mobile stretching assembly 3 will drive the first clamping mechanism 5 to move in the opposite direction. Since the second clamping mechanism does not clamp the fire extinguishing tape at this time, the movement of the first clamping mechanism 5 will pull and release the fire extinguishing tape rolled up on the winding rack 56. When the fire extinguishing tape is pulled out to a certain length, the second clamping mechanism will clamp and fix the fire extinguishing tape close to the winding rack 56. As the mobile stretching assembly 3 continues to slide, the first clamping mechanism 5 will be driven to apply a stable tension to the clamped fire extinguishing tape. At this time, the tension display 4 will continuously display the applied tension number, and then the control panel on the test box 1 will be used to control the fire extinguishing tape. The real-time data display is carried out, which is convenient for the tensile test of the fire extinguishing tape. When the tensile test of the first section of the fire extinguishing tape is completed, the cutting and taking mechanism 7 will remove the tested fire extinguishing tape from the first clamping mechanism 5 and the second clamping mechanism, and at the same time, the cutting and taking mechanism 7 will cut the fire extinguishing tape clamped by the second clamping mechanism, so that the tested fire extinguishing tape can be separated from the rolled fire extinguishing tape. When the tested fire extinguishing tape is taken off the test bench 2, the first clamping mechanism 5 continues to move toward the second clamping mechanism to clamp and fix the end of the cut fire extinguishing tape, and then the first clamping mechanism 5 moves in the reverse direction. The fire extinguishing tape is then stretched to a certain length by the second clamping mechanism, and the second clamping mechanism is used to clamp and fix the stretched fire extinguishing tape, so as to facilitate the tensile test of the second test sample. By repeating the above steps, the fire extinguishing tape can be subjected to tensile tests of multiple sets of data. Moreover, since the fire extinguishing tape to be tested is rolled up and placed in the test box 1, and can be automatically sampled and tested at a fixed length, there is no need for the operator to manually replace and clamp multiple fire extinguishing tape samples to be tested, thereby improving the accuracy and efficiency of the tensile test of the fire extinguishing tape, and improving the safety of the test.

[0037] In the scheme designed by the present invention, the mobile stretching assembly 3 includes a driving screw 31, a sliding block 32, a back plate 33 and a dial plate 34. The driving screw 31 is rotatably installed in a moving groove 21 opened on the test bench 2. The sliding block 32 is sleeved on the driving screw 31 through a ball nut. A back plate 33 is vertically fixed on the upper surface of the sliding block 32. The back plate 33 is connected to the tension display 4, and the output end of the tension display 4 is connected to the first clamping mechanism 5. The upper surface of the test bench 2 is provided with a dial plate 34 at the notch of the moving groove 21;

[0038] Specifically, driven by a servo motor fixed on one side of the test bench 2, a driving screw 31 connected to the output shaft of the servo motor will rotate in the movable groove 21, and then drive the sliding block 32 to slide in the movable groove 21 through the ball nut, and the back plate 33 will drive the first clamping mechanism 5 to slide on the upper surface of the test bench 2 through the tension display 4, so as to pull out the wound fire extinguishing tape and apply a stable tensile tension to the pulled and clamped fire extinguishing tape, and the dial 34 arranged on the test bench 2 can determine the length of the stretched fire extinguishing tape to be tested according to the distance between the first clamping mechanism 5 and the second clamping mechanism, thereby improving the accuracy of the tensile test of the fire extinguishing tape.

[0039] In the scheme designed by the present invention, the first clamping mechanism 5 and the second clamping mechanism have the same structure, including a bottom slider 51, a clamping base 52, a clamping cylinder 53, a clamping plate 54 and a guide rod 55. The symmetrical bottom sliders 51 are arranged in the moving groove 21, and a clamping base 52 is fixedly arranged on the upper surface of each bottom slider 51. The front-to-rear width of the clamping base 52 is greater than the width of the moving groove 21. The clamping base 52 located on the right side is connected to the tension display 4, and a winding frame 56 is detachably installed on the side of the clamping base 52 located on the left side. A clamping cylinder 53 is fixedly arranged on the side of each clamping base 52, and the output rod of the clamping cylinder 53 is connected to the clamping plate 54. The clamping plate 54 is located above the clamping base 52, and the lower surface of the clamping plate 54 is slidably inserted into the clamping base 52 through a plurality of guide rods 55.

[0040] Specifically, when the sliding block 32 drives the clamping base 52 on the right to slide to the left through the back plate 33 and the tension display 4, so that the clamping plate 54 on the right and the clamping base 52 slide close to the side of the clamping base 52 and the clamping plate 54 on the left, the servo motor on the winding frame 56 can be controlled to work so that the wound fire extinguishing tape is slowly released. At this time, the cooperation of the clamping base 52 and the clamping plate 54 on the left can guide the released fire extinguishing tape. When the free end of the fire extinguishing tape extends into the clamping plate 54 that slides close to the right After the clamping base 52 is moved, the output rod of the clamping cylinder 53 vertically fixed on the front and rear sides of the right clamping base 52 is retracted, which will drive the clamping plate 54 to move downward, thereby clamping and fixing the free end of the fire extinguishing tape. At this time, the guide rods 55 slidably inserted at the four corners of the clamping base 52 can play a guiding role, and then drive the lead screw 31 to rotate, so that the right clamping base 52 slides to the right, and the clamped and fixed fire extinguishing tape is slowly released, and the dial 34 will measure the sliding distance of the clamping base 52 on the right. After the clamping base 52 slides to the right to a certain distance, the output rod of the clamping cylinder 53 on the left clamping base 52 is controlled to be recovered, so that it drives the clamping plate 54 to move downward to clamp and fix the fire extinguishing tape close to the winding frame 56, and then drives the lead screw 31 to continue to rotate. Since the clamping base 52 on the left is in a fixed state at this time, the sliding of the sliding block 32 will drive the fire extinguishing tape clamped by the right clamping base 52 and the clamping plate 54 to stretch through the back plate 33 and the tension display 4, thereby facilitating the fixed-length pulling out The fire-extinguishing tape is subjected to a tensile test; and when the test of the pulled-out fire-extinguishing tape is completed, the cutting and feeding mechanism 7 works, and then the output rod of the clamping cylinder 53 is extended, so that the clamping plate 54 is separated from the clamping and fixing of the fire-extinguishing tape, and then the cutting and feeding mechanism 7 will remove the tested fire-extinguishing tape from between the two sets of corresponding clamping bases 52 and clamping plates 54, so as to facilitate the first clamping mechanism 5 to slide close to the second clamping mechanism again, so as to realize the continued fixed-length pulling of the wound fire-extinguishing tape, and then continue the tensile test.

[0041] In the scheme designed by the present invention, the bottom slider 51 located on the left side is connected to the driving screw 31 through a transmission connection component 6, and the transmission connection component 6 includes a moving block 61, an electromagnetic ring 62, a metal ring 63, a connecting strip 64, a clamping block 65, a spring member 66 and a protruding block 67. The moving block 61 is connected to the bottom slider 51 on the left side, and the moving block 61 is sleeved on the driving screw 31 through a ball nut. An annular cavity is opened in the moving block 61, and the electromagnetic ring 62 is insulated in the annular cavity. The outer ring surface of the ball nut located in the moving block 61 is insulated and sleeved with a metal ring 63, and the outer ring surface of the metal ring 63 is in contact with the electromagnetic ring 62. The clamping bottom located on the left side A recessed groove 521 is formed upwardly at the bottom of the seat 52, and a connecting strip 64 is slidably disposed in the recessed groove 521. The two ends of the connecting strip 64 are slidably sleeved on the guide rod 55, and a snap-fit ​​block 65 is fixedly disposed on the lower surface of the connecting strip 64. The two ends of the connecting strip 64 are connected to the recessed groove 521 through a spring member 66, and the spring member 66 is sleeved on the guide rod 55. The bottom of the guide rod 55 passes downward through the connecting strip 64 to form a limit block, and the upper surface of the limit block is also connected to the lower surface of the connecting strip 64 through the spring member 66. A protruding block 67 is disposed on the large scale line of the scale plate 34, and the protruding block 67 cooperates with the snap-fit ​​groove formed on the lower surface of the snap-fit ​​block 65.

[0042] Specifically, in order to increase the sliding distance of the first clamping mechanism 5 on the test bench 2, so that it can pull out fire extinguishing tapes of different lengths, and can also perform accurate tensile test processing; therefore, when it is necessary to adjust the second clamping mechanism to slide to the left to increase the sliding stroke of the first clamping mechanism 5 on the test bench 2, the electromagnetic suction block of the inner ring of the electromagnetic ring 62 is controlled to be energized, so that it has a magnetic adsorption force to adsorb and fix the metal ring 63, and then the moving block 61 is fixedly connected to the ball nut inside it, so that When the driving screw 31 rotates, the left clamping base 52 will be driven to slide to the left on the test bench 2 through the moving block 61, and the winding frame 56 will slide synchronously. When the left clamping base 52 slides to a suitable position, the electromagnetic suction block on the inner ring surface of the electromagnetic ring 62 is powered off, so that it is separated from the adsorption and fixation of the metal ring 63, and the moving block 61 is separated from the fixed connection with the ball nut. At this time, the output rod of the clamping cylinder 53 on the left clamping base 52 is controlled to be recovered at a small distance, so that its clamping plate 54 first drives the guide rod 55 moves downward, at this time, the spring member 66 connected to the connecting strip 64 will push the engaging block 65 to move downward, so that the buckle groove of the engaging block 65 will first be clamped onto the protruding block 67, at this time, the clamping plate 54 is only in contact with the fire extinguishing tape to be pulled out, and then the driving screw 31 continues to rotate, which will drive the first clamping mechanism 5 to move toward the second clamping mechanism, and the ball nut located in the moving block 61 will rotate freely. When the first clamping mechanism 5 pulls the clamped fire extinguishing tape to be released, since the clamping base 52 on the left is through the clamping block 65 and the raised block 67 cooperate to limit the movement, so the second clamping mechanism will not slide freely. When the fire-extinguishing tape is stretched to a certain length, the continued descent of the clamping plate 54 will drive the connected connecting strip 64 to continue to descend, so that the clamping block 65 can squeeze the clamping sleeve onto the raised block 67, thereby increasing the firmness of the left clamping base 52 in the limited sliding on the test bench 2, and preventing the first clamping mechanism 5 on the right from pulling the fire-extinguishing tape with a large force, which causes the second clamping mechanism to slide freely.When the left clamping base 52 needs to slide, the left clamping plate 54 rises, not only will it be separated from the clamping and fixing of the fire extinguishing tape, but it will also drive the connecting strip 64 upward through the spring member 66, so that the clamping block 65 is separated from the protruding block 67, and the connecting strip 64 will enter the recessed groove 521 at this time, so that it will not interfere with the normal sliding adjustment of the left clamping base 52, and when the clamping plate 54 only needs to rise to separate from the clamping of the fire extinguishing tape, the output rod of the clamping cylinder 53 only needs to rise a small distance, so that the clamping plate 54 rises to separate from the pressing clamping of the fire extinguishing tape, and will not interfere with the normal release of the cut fire extinguishing tape, and at this time, the clamping block 65 continues to be clamped onto the corresponding protruding block 67, so that it continues to limit the sliding of the left clamping base 52, preventing the left clamping base 52 from sliding freely when the fire extinguishing tape is pulled and released, which will affect the normal tensile test of the fire extinguishing tape.

[0043] In the scheme designed by the present invention, the cutting and taking mechanism 7 includes a guide rail assembly 71, a push cylinder 72, a clamping cylinder 73, a connecting long rod 74 and a cutting knife 75. The guide rail assembly 71 is fixedly provided on the back of the test box 1. Two sliders are slidably provided on the guide rail of the guide rail assembly 71. The outer end surface of each slider is provided with a push cylinder 72. A clamping cylinder 73 is fixedly provided on the end of the output rod of the push cylinder 72. The clamping claw of the clamping cylinder 73 faces the fire extinguishing tape. A connecting long rod 74 is movably connected to the cylinder body of the clamping cylinder 73, and the other end of the connecting long rod 74 is connected to the clamping base 52. A cutting knife 75 is provided between the connecting long rod 74 connected to the clamping base 52 near the left side and the clamping cylinder 73;

[0044] Specifically, when it is necessary to cut and remove the fire extinguishing tape after the test, the output rod of the push cylinder 72 is controlled to extend, so that it drives the clamping claw cylinder 73 to move toward the fire extinguishing tape, so that the opened clamping claws of the clamping claw cylinder 73 are located at the upper and lower sides of the fire extinguishing tape, and at this time, the cutting knife 75 will follow the clamping claw cylinder 73 and move synchronously toward the fire extinguishing tape to cut the fire extinguishing tape on the right side of the left clamping base 52. When the fire extinguishing tape is cut, the clamping claw of the clamping cylinder 53 will clamp and fix the cut fire extinguishing tape, and then the push cylinder 72 is moved. The output rod is recovered, so that it drives the clamped fire extinguishing tape to detach from the test bench 2 through the clamping claw cylinder 73, thereby facilitating the automatic and quick cutting and removal of the fire extinguishing tape after the test is completed, so that it will not interfere with the normal release of the fire extinguishing tape rolled up on the winding rack 56 for tensile testing; and when the clamping base 52 moves, the connecting long rod 74 can drive the pushing cylinder 72 to slide along the guide rail assembly 71 through the clamping claw cylinder 73, so that the clamping claw cylinder 73 can slide synchronously with the clamping base 52, thereby realizing the cutting and material taking processing of the fire extinguishing tapes of different lengths and after the test.

[0045] In the solution designed by the present invention, the cutting and taking mechanism 7 further includes a guide support rod 76, an adjusting washer 77 and an adjusting nut 78. The connecting long rod 74 is provided with a guide long slot 741 along its length direction. The side of the cylinder body of the clamping jaw cylinder 73 is connected with a guide support rod 76, and the free end of the guide support rod 76 passes through the guide long slot 741 and is connected with an adjusting nut 78. Two adjusting washers 77 are sleeved on the guide support rod 76, and the two adjusting washers 77 are respectively located on both sides of the guide long slot 741. A spring member 66 is sleeved on the guide support rod 76, and the two ends of the spring member 66 are respectively connected to the adjusting washer 77 and the connecting block;

[0046] The cam 76 is engaged with the second retaining element 72 and the second retaining element 73 is engaged with the first retaining element 72. The cam 76 is engaged with the second retaining element 72 and the second retaining element 73 is engaged with the second retaining element 73. When the clamp is pulled out, the corresponding clamping claw cylinder 73 will be squeezed and avoided, so that the cooperation between the clamping base 52 and the clamping plate 54 can accurately clamp the cut fire extinguishing colloid; when the clamping base 52 on the right side slides slowly to the right, the separated clamping claw cylinder 73 will slide in the direction away from the connecting long rod 74 under the elastic restoring force of the spring member 66, so that the clamping claw cylinder 73 can be restored to the side of the clamping base 52, thereby clamping, cutting and taking materials of the tested fire extinguishing tape, and when the clamping claw cylinder 73 moves in the direction of the fire extinguishing tape, the guide support rod 76 can slide in the guide long groove 741 to achieve guiding support for the clamping claw cylinder 73, and by twisting the adjusting nut 78, the distance between the clamping claw of the clamping claw cylinder 73 and the clamping base 52 can be adjusted, thereby facilitating the clamping, cutting and taking materials of fire extinguishing tapes of different lengths.

[0047] In the scheme designed by the present invention, a cutting knife 75 is detachably installed on the side of the clamping claw cylinder 73, and the front and rear horizontal length of the cutting knife 75 is the same as the front and rear length of the clamping claw of the clamping claw cylinder 73, and the blade of the cutting knife 75 is flush with the claw mouth of the clamping claw of the clamping claw of the clamping cylinder 53; specifically, when the clamping claw of the clamping claw cylinder 73 moves in the direction of the fire extinguishing tape, the blade of the cutting knife 75 will simultaneously cut the fire extinguishing tape, and at this time, the cooperation of the left clamping plate 54, the guide rod 55 and the clamping base 52 can limit the fire extinguishing tape being cut, and prevent the fire extinguishing tape from being skewed during the cutting process. When the fire extinguishing tape is completely cut, the cut fire extinguishing tape will fall completely between the upper and lower clamping claws, and then the clamping claw cylinder 73 drives the clamping claw to clamp and fix the fire extinguishing tape, and the recovery of the extended rod of the push cylinder 72 can drive the test cut fire extinguishing tape to move to the blanking area for collection and processing.

[0048] In the scheme designed by the present invention, a collection box 8 is provided in the drop area formed inside the test box 1; specifically, the clamping claw cylinder 73 can clamp the fire extinguishing tape cut after the test and drop it into the collection box 8, and then the warehouse door at the back of the test box 1 is opened to take out the waste collected in the collection box 8.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-induction fire extinguishing tape tensile test mechanism, characterized in that: The test box (1) comprises a test bench (2) fixedly arranged in the test box (1), a movable stretching assembly (3) arranged on the test bench (2), and the movable stretching assembly (3) connected to a first clamping mechanism (5) via a tension display (4); The test bench (2) is provided with a second clamping mechanism, and the second clamping mechanism corresponds to the first clamping mechanism (5); a winding frame (56) is provided on one side of the second clamping mechanism, and a wound fire-extinguishing tape is placed on the winding frame (56); The back of the test box (1) is provided with a cutting and taking mechanism (7), and the cutting and taking mechanism (7) is used to cut and take the tested fire extinguishing tape from the first clamping mechanism (5) and the second clamping mechanism.

2. A self-induction fire extinguishing tape tensile test mechanism according to claim 1, characterized in that: The movable stretching assembly (3) comprises a driving screw (31), a sliding block (32), a back plate (33) and a dial (34); the driving screw (31) is rotatably mounted in a movable groove (21) provided on the test bench (2); the sliding block (32) is sleeved on the driving screw (31) via a ball nut; a back plate (33) is vertically fixed on the upper surface of the sliding block (32); the back plate (33) is connected to a tension display (4), and the output end of the tension display (4) is connected to a first clamping mechanism (5); and a dial (34) is provided on the upper surface of the test bench (2) at the notch of the movable groove (21).

3. A self-induction fire extinguishing tape tensile test mechanism according to claim 2, characterized in that: The first clamping mechanism (5) and the second clamping mechanism have the same structure, comprising a bottom slider (51), a clamping base (52), a clamping cylinder (53), a clamping plate (54) and a guide rod (55), wherein the bottom sliders (51) are symmetrically arranged in the movable groove (21), and a clamping base (52) is fixedly arranged on the upper surface of each bottom slider (51), and the front-to-back width of the clamping base (52) is greater than the width of the movable groove (21), and the clamping base (52) located on the right side is 52) is connected to the tension display (4), and a winding frame (56) is detachably installed on the side of the clamping base (52) on the left side. A clamping cylinder (53) is fixed on the side of each clamping base (52), and the output rod of the clamping cylinder (53) is connected to a clamping plate (54). The clamping plate (54) is located above the clamping base (52), and the lower surface of the clamping plate (54) is slidably inserted into the clamping base (52) through a plurality of guide rods (55).

4. A self-induction fire extinguishing tape tensile test mechanism according to claim 3, characterized in that: The bottom slider (51) on the left side is connected to the driving screw (31) through a transmission connection assembly (6). The transmission connection assembly (6) comprises a moving block (61), an electromagnetic ring (62), a metal ring (63), a connecting strip (64), a locking block (65), a spring member (66) and a protruding block (67). The moving block (61) is connected to the bottom slider (51) on the left side. The moving block (61) is sleeved on the driving screw (31) through a ball nut. An annular cavity is provided in the moving block (61), and an electromagnetic ring (62) is insulated in the annular cavity. The outer ring surface of the ball nut in the moving block (61) is insulated and sleeved with a metal ring (63). The outer ring surface of the metal ring (63) contacts the electromagnetic ring (62). The clamping base (52) on the left side A recessed groove (521) is provided upwardly at the bottom of the guide rod (55), and a connecting strip (64) is slidably provided in the recessed groove (521). The two ends of the connecting strip (64) are slidably sleeved on the guide rod (55), and a snap-fit ​​block (65) is fixedly provided on the lower surface of the connecting strip (64). The two ends of the connecting strip (64) are connected to the recessed groove (521) through a spring member (66), and the spring member (66) is sleeved on the guide rod (55). The bottom of the guide rod (55) passes through the connecting strip (64) downwardly to provide a limit block, and the upper surface of the limit block is also connected to the lower surface of the connecting strip (64) through the spring member (66). A protruding block (67) is provided on the large scale line of the scale plate (34), and the protruding block (67) cooperates with the snap-fit ​​groove provided on the lower surface of the snap-fit ​​block (65).

5. A self-induction fire extinguishing tape tensile test mechanism according to claim 3, characterized in that: The cutting and taking mechanism (7) comprises a guide rail assembly (71), a push cylinder (72), a clamping cylinder (73), a connecting rod (74) and a cutting knife (75). The guide rail assembly (71) is fixedly arranged on the back of the test box (1). Two sliders are slidably arranged on the guide rail of the guide rail assembly (71). The outer end surface of each slider is provided with a push cylinder (72). A clamping cylinder (73) is fixedly arranged on the end of the output rod of the push cylinder (72). The clamping claw of the clamping cylinder (73) faces the fire extinguishing tape. A connecting rod (74) is movably connected to the cylinder body of the clamping cylinder (73), and the other end of the connecting rod (74) is connected to the clamping base (52). A cutting knife (75) is arranged between the connecting rod (74) connected to the clamping base (52) near the left side and the clamping cylinder (73).

6. A self-induction fire extinguishing tape tensile test mechanism according to claim 5, characterized in that: The cutting and picking mechanism (7) further comprises a guide support rod (76), an adjusting washer (77) and an adjusting nut (78); the connecting long rod (74) is provided with a guide long slot (741) extending through the connecting long rod (74) along its length direction; the cylinder body side of the clamping claw cylinder (73) is connected with a guide support rod (76), and the free end of the guide support rod (76) passes through the guide long slot (741) and is connected with an adjusting nut (78); two adjusting washers (77) are sleeved on the guide support rod (76), and the two adjusting washers (77) are respectively located on both sides of the guide long slot (741); a spring member (66) is sleeved on the guide support rod (76), and the two ends of the spring member (66) are respectively connected to the adjusting washer (77) and the connecting block.

7. A self-induction fire extinguishing tape tensile test mechanism according to claim 5, characterized in that: A cutting knife (75) is detachably mounted on the side of the clamping claw cylinder (73); the front-to-back horizontal length of the cutting knife (75) is the same as the front-to-back length of the clamping claw of the clamping claw cylinder (73); and the blade of the cutting knife (75) is flush with the jaw opening of the clamping claw of the clamping claw cylinder (53).

8. A self-induction fire extinguishing tape tensile test mechanism according to claim 7, characterized in that: A collection box (8) is provided in the material dropping area formed inside the test box (1).

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