Insulating film strength detection device

Abstract

The invention relates to the technical field of insulating film detection, in particular to an insulating film strength detection device which comprises a machine base, a machine body, a computer, a mounting seat and a puncturing head, the machine body and the computer are mounted at the upper end of the machine base, the mounting seat is mounted at the lifting end of the machine body, the puncturing head is mounted below the mounting seat, and a supporting pipe is fixedly connected to the upper end of the machine base. The insulating film can be conveniently subjected to multiple puncture tests at different positions, the insulating film does not need to be manually and frequently fixed and loosened in the process, and the insulating film can be always subjected to puncture tests in an absolutely flat state, so that the operation of manually and frequently fixing and loosening the insulating film is avoided, and the working efficiency is improved. The insulation film is prevented from being unsmooth when being fixed due to manual operation, so that the detection efficiency and the detection precision are improved. The stress condition of the insulating film under the high-temperature working condition in the actual use environment can be simulated, so that the comprehensiveness of the puncture strength test of the insulating film is improved, and the heating mechanism adapts to the vertical movement of the puncture head.

Description

Technical Field

[0001] The present invention relates to the technical field of insulating film detection, in particular to an insulating film strength detection device. Background Art

[0002] Insulation film is a thin film material with electrical insulation properties. It can prevent the passage of current and is mainly used to isolate different conductive parts to prevent short circuits and leakage. Insulation film needs to undergo a number of mechanical strength tests before leaving the factory, including puncture strength test, which mainly tests the ability of the insulation film to resist puncture by sharp objects. A film puncture strength tester is used in the process.

[0003] The existing film puncture strength tester is mainly composed of a clamp and a puncture head. The puncture head is driven up or down by the driving device of the film puncture strength tester. The clamp fixes the sampled insulating film and makes the insulating film in a stretched and flat state. Then the puncture head moves down until the insulating film is punctured. Finally, the computer display data on the film puncture strength tester is observed to measure the puncture strength of the insulating film. The clamp is mainly composed of an annular seat, a pressure ring and a plurality of lock buckles. When the clamp fixes the sampled insulating film, the insulating film is first laid flat on the annular seat, and then the pressure ring is placed on the upper end of the annular seat and the plurality of lock buckles are locked in sequence to achieve fixation between the annular seat and the pressure ring, and also fix the insulating film.

[0004] In order to improve the accuracy of the test, it is usually necessary to sample multiple insulating films for puncture testing. However, the insulating film must be installed and removed on the fixture each time, which is cumbersome and affects the test efficiency. In addition, manual operation can easily make the insulating film uneven, affecting the test results. At the same time, the existing film puncture strength tester generally performs puncture strength tests on insulating films under normal conditions, and the test is not comprehensive enough. Summary of the invention

[0005] The object of the present invention is to provide an insulating film strength detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an insulating film strength detection device, comprising a machine base, a machine body and a computer installed at the upper end of the machine base, a mounting base installed at the lifting end of the machine body, and a puncture head installed under the mounting base, the upper end of the machine base is fixedly connected to a support tube, and electric push rods are fixedly installed at both sides of the upper end of the machine base on the support tube, the telescopic shaft ends of the two electric push rods are fixedly connected to U-shaped plates, a lower pressure ring is fixedly connected between the two U-shaped plates, the lower pressure ring is located directly above the support tube, and pulling mechanisms are provided at the front and rear of the support tube, an insulating film roll is installed above the machine base through a conveying mechanism, the initial section of the insulating film roll passes through the lower pressure ring and the support tube, and a winding mechanism is provided between the end of the initial section of the insulating film roll and the machine base, and a heating mechanism is provided between the puncture head and the machine body.

[0007] Preferably, the pulling mechanism comprises two fixed plates, the two fixed plates are symmetrically fixedly connected to the upper end of the machine base, and the two fixed plates are respectively located on both sides of the initial section of the insulating film roll, and the two fixed plates are elastically connected with slides through elastic components, the two slides are respectively located on both sides of the initial section of the insulating film roll, and square grooves are opened at the upper edges of the side walls of the two slides, and the tops and bottoms of the two square grooves are jointly attached with pulling plates, and the wall surfaces corresponding to each other of the two pulling plates are fixedly connected with rubber pads, and the two rubber pads are respectively attached to the upper and lower surfaces of the initial section of the insulating film roll, elastic mechanisms are respectively provided between the wall surfaces of the two pulling plates away from each other and the side walls of the two slides away from each other, offset mechanisms are respectively provided between the two slides and the two electric push rods, and blocking components are provided on the two fixed plates.

[0008] Preferably, the elastic component includes two connecting columns, which are respectively slidably inserted into the inner walls at the upper and lower edges of the fixed plate, and one end of the two connecting columns is fixedly connected to the wall of the slide plate away from the electric push rod, and a spring 2 is slidably sleeved on the outer walls of the two connecting columns, and the two springs 2 are fixedly connected between the fixed plate and the slide plate.

[0009] Preferably, the elastic mechanism includes a fixed block, which is fixedly connected to the side wall of the skateboard near the pulling plate, and the inner wall of the fixed block is symmetrically slidably interspersed with guide pillars, one end of the two guide pillars are fixedly connected to the wall of the pulling plate away from the rubber pad, and the outer walls of the two guide pillars are slidably sleeved with springs 1, and the two springs 1 are fixedly connected between the fixed block and the pulling plate.

[0010] Preferably, the offset mechanism includes a transverse plate and an L-shaped block, the transverse plate is fixedly connected to the wall surface of the slide board corresponding to the electric push rod, and an end of the transverse plate away from the slide board is fixedly connected to an inclined block 1, the L-shaped block is fixedly connected to the upper edge of the telescopic shaft of the electric push rod, and the L-shaped block is located above the inclined block 1.

[0011] Preferably, the blocking assembly includes a splicing block, which is fixedly connected to the upper edge of the side wall of the fixed plate, and the splicing block is symmetrically fixedly connected with a flat plate on the wall surface of the sliding plate corresponding to the sliding plate, and the ends of the two flat plates away from the splicing block are fixedly connected with an inclined block 2, and the corresponding walls of the two inclined blocks 2 are respectively in contact with the edges of the two pulling plates.

[0012] Preferably, the conveying mechanism includes a Z-shaped plate, which is fixedly connected to the front end of the machine base, and a motor 1 is fixedly installed on the upper end of the Z-shaped plate, and a stud is fixedly connected to the output shaft end of the motor 1, and the outer wall of the stud is fitted with the inner wall of the central drum of the insulating film roll, and a limiting ring is fixedly provided on the outer wall of the stud near the motor, and a rotating block is threadedly sleeved on the outer wall of the stud away from the limiting ring, and the side walls corresponding to the rotating block and the limiting ring are respectively fitted with the two side ends of the central drum of the insulating film roll.

[0013] Preferably, the winding mechanism includes an L-shaped plate, which is fixedly connected to the upper end of the machine base away from the insulating film roll, and a motor 2 is fixedly installed on the upper end of the L-shaped plate, and the output shaft end of the motor 2 is fixedly connected to a winding column, and the end of the insulating film roll is wrapped and connected to the outer wall of the winding column.

[0014] Preferably, the heating mechanism comprises two connecting blocks, the two connecting blocks are symmetrically fixedly connected to the side walls of the machine body, and connecting rods are slidably inserted into the inner walls of the two connecting blocks, the upper ends of the two connecting rods are commonly fixedly connected to a connecting frame, and springs three are slidably sleeved on the outer walls of the two connecting rods, and the two springs three are respectively fixedly connected between the upper ends of the two connecting blocks and the connecting frame, a heating ring is fixedly connected to one end of the connecting frame away from the machine body, the heating ring is slidably sleeved outside the piercing head of the piercing head, and a push ring is fitted on the upper end of the heating ring, and the push ring is fixedly sleeved outside the piercing head of the piercing head.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the cooperation of the support tube, electric push rod, U-shaped plate, lower pressure ring, pulling mechanism, elastic component, elastic mechanism, offset mechanism, blocking component transmission mechanism and winding mechanism, it is not only convenient to perform multiple puncture tests on the insulating film at different positions, but also there is no need to frequently fix and loosen the insulating film manually during the process. The insulating film can always be kept absolutely flat for puncture testing, thereby avoiding frequent manual fixing and loosening operations on the insulating film, and avoiding unevenness of the insulating film when fixed due to manual operation, thereby improving detection efficiency and detection accuracy.

[0017] 2. By setting up a heating mechanism, the stress conditions of the insulating film under high temperature conditions encountered in the actual use environment can be simulated (because the insulating film will be covered by the heat generated by the operation of the electrical equipment when used in the electrical equipment), thereby improving the comprehensiveness of the insulating film puncture strength test, and the heating mechanism adapts to the up and down movement of the puncture head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lower pressure ring of the present invention and a cross-sectional view of the base; Figure 3 For the present invention Figure 2 A magnified view of the structure at center; Figure 4 It is a structural schematic diagram of the pulling mechanism of the present invention; Figure 5 is a cross-sectional view of the lower pressure ring of the present invention; Figure 6 It is a structural schematic diagram of the heating mechanism of the present invention; Figure 7 It is a disassembly diagram of the insulating film roll, the winding post and the stud of the present invention.

[0019] In the attached drawings, the components represented by the reference numerals are as follows: 1. machine body; 2. computer; 3. mounting base; 4. piercing head; 5. machine base; 6. lower pressure ring; 7. winding column; 8. slide plate; 9. electric push rod; 10. support tube; 11. insulating film roll; 12. Z-shaped plate; 13. motor 1; 14. pulling plate; 15. U-shaped plate; 16. L-shaped plate; 17. motor 2; 18. L-shaped block; 19. horizontal plate; 20. Oblique block one; 21. Fixed plate; 22. Rotating block; 23. Stud; 24. Spring one; 25. Guide column; 26. Fixed block; 27. Rubber pad; 28. Oblique block two; 29. ​​Flat plate; 30. Splicing block; 31. Connecting column; 32. Spring two; 33. Connecting frame; 34. Push ring; 35. Heating ring; 36. Connecting block; 37. Spring three; 38. Connecting rod; 39. Limiting ring; 40. Square groove. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figure 1 - Figure 7, an insulating film strength detection device, comprising a base 5, a body 1 and a computer 2 installed at the upper end of the base 5, a mounting base 3 installed at the lifting end of the body 1 and a puncture head 4 installed under the mounting base 3, the upper end of the base 5 is fixedly connected with a support tube 10, and electric push rods 9 are fixedly installed at both sides of the upper end of the base 5 located on the support tube 10, the telescopic shaft ends of the two electric push rods 9 are fixedly connected with U-shaped plates 15, a lower pressure ring 6 is fixedly connected between the two U-shaped plates 15, the lower pressure ring 6 is located just above the support tube 10, and a pulling mechanism is provided at the front and rear of the support tube 10, an insulating film roll 11 is installed above the base 5 through a conveying mechanism, the initial section of the insulating film roll 11 passes between the lower pressure ring 6 and the support tube 10, and a winding mechanism is provided between the end of the initial section of the insulating film roll 11 and the base 5, and a heating mechanism is provided between the puncture head 4 and the body 1.

[0022] The pulling mechanism includes two fixed plates 21, which are symmetrically fixedly connected to the upper end of the machine base 5, and the two fixed plates 21 are respectively located on both sides of the initial section of the insulating film roll 11, and the two fixed plates 21 are elastically connected with slide plates 8 through elastic components, the two slide plates 8 are respectively located on both sides of the initial section of the insulating film roll 11, and square grooves 40 are opened at the upper edges of the side walls of the two slide plates 8, and the top and bottom of the two square grooves 40 are jointly attached to the pulling plates 14, and the wall surfaces corresponding to each other of the two pulling plates 14 are fixedly connected with rubber pads 27, and the two rubber pads 27 are respectively attached to the upper and lower surfaces of the initial section of the insulating film roll 11, and elastic mechanisms are respectively provided between the wall surfaces of the two pulling plates 14 that are away from each other and the side walls of the two slide plates 8 that are away from each other, and offset mechanisms are respectively provided between the two slide plates 8 and the two electric push rods 9, and blocking components are provided on the two fixed plates 21.

[0023] The elastic component includes two connecting columns 31, which are respectively slidably inserted into the inner walls at the upper and lower edges of the fixed plate 21, and one end of the two connecting columns 31 is fixedly connected to the wall of the slide plate 8 away from the electric push rod 9, and a spring 2 32 is slidably sleeved on the outer walls of the two connecting columns 31, and the two springs 2 32 are fixedly connected between the fixed plate 21 and the slide plate 8.

[0024] The elastic mechanism includes a fixed block 26, which is fixedly connected to the side wall of the slide plate 8 near the pulling plate 14, and the inner wall of the fixed block 26 is symmetrically slidably interspersed with guide pillars 25, one end of the two guide pillars 25 are fixedly connected to the wall of the pulling plate 14 away from the rubber pad 27, and the outer walls of the two guide pillars 25 are slidably sleeved with springs 24, and the two springs 24 are fixedly connected between the fixed block 26 and the pulling plate 14.

[0025] The offset mechanism includes a transverse plate 19 and an L-shaped block 18. The transverse plate 19 is fixedly connected to the wall surface of the slide plate 8 corresponding to the electric push rod 9, and an inclined block 20 is fixedly connected to the end of the transverse plate 19 away from the slide plate 8. The L-shaped block 18 is fixedly connected to the upper edge of the telescopic shaft of the electric push rod 9, and the L-shaped block 18 is located above the inclined block 20.

[0026] The blocking assembly includes a splicing block 30, which is fixedly connected to the upper edge of the side wall of the fixed plate 21, and the splicing block 30 is symmetrically fixedly connected with a flat plate 29 on the wall surface corresponding to the slide plate 8, and the ends of the two flat plates 29 away from the splicing block 30 are fixedly connected with an inclined block 28, and the corresponding walls of the two inclined blocks 28 are respectively in contact with the edges of the two pulling plates 14.

[0027] The transmission mechanism includes a Z-shaped plate 12, which is fixedly connected to the front end of the machine base 5, and a motor 13 is fixedly installed on the upper end of the Z-shaped plate 12, and a stud 23 is fixedly connected to the output shaft end of the motor 13, and the outer wall of the stud 23 is in contact with the inner wall of the central drum of the insulating film roll 11, and a limiting ring 39 is fixedly sleeved on the outer wall of the stud 23 near the motor 13, and a rotating block 22 is threadedly sleeved on the outer wall of the stud 23 away from the limiting ring 39, and the side walls corresponding to the rotating block 22 and the limiting ring 39 are respectively in contact with the two side ends of the central drum of the insulating film roll 11.

[0028] The winding mechanism includes an L-shaped plate 16, which is fixedly connected to the upper end of the machine base 5 away from the insulating film roll 11, and a motor 2 17 is fixedly installed on the upper end of the L-shaped plate 16. The output shaft end of the motor 2 17 is fixedly connected to the winding column 7, and the end of the insulating film roll 11 is wrapped and connected to the outer wall of the winding column 7.

[0029] In this embodiment, the center drum of the wound insulating film roll 11 is firstly inserted into the outer wall of the stud 23 (how to roll the insulating film is a well-known prior art and will not be elaborated on, and the insulating film is wound on a drum which is also a well-known prior art and will not be elaborated on), and one end of the center drum of the insulating film roll 11 is made to fit with the limiting ring 39, and then the initial section of the insulating film roll 11 is dragged out, and the initial section of the insulating film roll 11 is passed between the two pulling plates 14 at the front and rear and between the lower pressure ring 6 and the support tube 10, and the end of the initial section of the insulating film roll 11 is fixed to the outside of the winding column 7 with the help of a tool, and then the rotating block 22 is screwed onto the outer wall of the stud 23, and the rotating block 22 is made to fit tightly with the other end of the center drum of the insulating film roll 11, so as to fix the insulating film roll 11, as shown in FIG. Figure 1 and Figure 2 The two pulling plates 14 at the front and rear positions can also guide the insulating film so that the insulating film can be attached to the upper end of the support tube 10 .

[0030] Then start the two electric push rods 9, which can drive the U-shaped plates 15 connected to them to move downward, and the two U-shaped plates 15 can drive the lower pressure ring 6 connected thereto to move downward, and the two electric push rods 9 can also drive the two L-shaped blocks 18 connected to their respective telescopic shafts to move downward, until the lower pressure ring 6 is close to the insulating film of the insulating film roll 11, at which time the lower ends of the four L-shaped blocks 18 will contact their respective corresponding inclined blocks 20, and as the lower pressure ring 6 continues to move downward, each L-shaped block 18 will squeeze the corresponding inclined block 20, and under the action of the squeezing force, each L-shaped block 18 will move away from its corresponding electric push rod 9, combined with Figure 2 From the perspective of the embodiment, the two slide plates 8 at the front and rear positions will move away from the support tube 10, and each slide plate 8 will drive the connecting column 31 connected to it to slide in the corresponding fixing plate 21 and squeeze the corresponding spring 2 32, and when the two slide plates 8 at each position move, they will drive the two pulling plates 14 to move together, and the two pulling plates 14 will drive the rubber pads 27 connected to them to move together, and the two pulling plates 14 will drive the rubber pads 27 connected to them to move together. Figure 3 From the perspective of the embodiment of the present invention, the edges of the two pulling plates 14 will squeeze the corresponding inclined block 28 respectively. Under the action of the squeezing force, the two pulling plates 14 will move closer to each other, and each pulling plate 14 will drive the guide column 25 connected to it to slide down in the corresponding fixed block 26 and stretch the spring 1 24. Since the inclined block 28 is very short, the distance that the two pulling plates 14 move closer to each other will also be very short, and they will quickly contact with the corresponding flat plate 29 and slide on its surface. At this time, the two pulling plates 14 will also stop moving closer to each other, and at this time, the rubber pads 27 under the two pulling plates 14 will gently squeeze the upper and lower surfaces of the insulating film respectively. In summary, that is to say, the corresponding two When the pulling plates 14 move away from the support tube 10, they will also move closer to each other. Under the friction between the rubber pads 27 and the insulating film, the rubber pads 27 under the two pulling plates 14 can gently pull the insulating film, and the pulling direction is away from the support tube 10. Then, the rubber pads 27 under the other two pulling plates 14 can also gently pull the insulating film, and the pulling direction is also away from the support tube 10. Then, the insulating film can be gently tightened on the support tube 10, so that the part of the insulating film corresponding to the support tube 10 is in an absolutely flat state. Finally, when the lower pressure ring 6 is pressed against the upper end of the support tube 10, the insulating film can be firmly fixed.

[0031] Finally, the machine body 1 is started to drive the mounting seat 3 and the puncture head 4 to move downward until the puncture head 4 punctures the insulating film. At this time, the puncture strength of the insulating film can be measured by observing the data on the computer 2.

[0032] It should be noted that after the lower pressure ring 6 is driven to move back to its position by the two electric push rods 9, under the action of the second spring 32 and the first spring 24, the two slide plates 8 at the front and rear positions and the two pulling plates 14 and other related components will be reset.

[0033] It should also be noted that when the lower pressure ring 6 is not moved downward, starting motor 2 17 can drive the winding column 7 to rotate, and starting motor 1 13 can drive the stud 23 and the insulating film roll 11 to rotate, so that the insulating film of the insulating film roll 11 can be continuously released, and the winding column 7 will reel up the released insulating film, and the insulating film will continuously pass between the lower pressure ring 6 and the support tube 10, so that the insulating film can be conveniently subjected to multiple puncture tests at different positions, and there is no need to manually fix and loosen the insulating film frequently during the process, and the insulating film can always be kept in an absolutely flat state for puncture testing, thereby avoiding frequent manual fixing and loosening operations of the insulating film, and avoiding manual operations that cause the insulating film to be uneven when fixed, thereby improving detection efficiency and detection accuracy.

[0034] Example 2: Please refer to Figure 6 The present embodiment further explains the first embodiment, the heating mechanism includes two connecting blocks 36, the two connecting blocks 36 are symmetrically fixedly connected to the side wall of the body 1, and the inner walls of the two connecting blocks 36 are slidably inserted with connecting rods 38, the upper ends of the two connecting rods 38 are commonly fixedly connected to the connecting frame 33, and the outer walls of the two connecting rods 38 are slidably sleeved with springs three 37, the two springs three 37 are respectively fixedly connected between the upper ends of the two connecting blocks 36 and the connecting frame 33, and the end of the connecting frame 33 away from the body 1 is fixedly connected with a heating ring 35, the heating ring 35 is slidably sleeved outside the puncture head of the puncture head 4, and the upper end of the heating ring 35 is fitted with a push ring 34, and the push ring 34 is fixedly sleeved outside the puncture head of the puncture head 4.

[0035] In this embodiment, when the puncture head 4 moves downward, the puncture head 4 will drive the heating ring 35 to move downward through the push ring 34, and the heating ring 35 will drive the connecting frame 33 to move downward, and the connecting frame 33 will drive the two connecting rods 38 to slide down in the corresponding connecting blocks 36, and the connecting frame 33 will also squeeze the spring three 37 connected between the two connecting blocks 36. When the puncture head 4 moves back to its original position, under the action of the spring three 37, the two connecting rods 38, the connecting frame 33 and the heating ring 35 will automatically move upward, so that the heating ring 35 is always in contact with the puncture head of the puncture head 4 and does not affect the movement of the puncture head 4.

[0036] It should be noted that the heating ring 35 can be selectively connected to an external power source as needed, and the heating ring 35 can generate heat and transfer it to the piercing head of the piercing head 4. When the piercing head 4 with heat pierces the insulating film, it can simulate the stress conditions of the insulating film under high temperature conditions encountered in the actual use environment (because the insulating film will be covered by the heat generated by the electrical equipment when it is used in the electrical equipment), thereby improving the comprehensiveness of the insulating film puncture strength test.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulating film strength detection device, comprising a base (5), a body (1) and a computer (2) mounted on the upper end of the base (5), a mounting seat (3) mounted on the lifting end of the body (1), and a puncture head (4) mounted under the mounting seat (3), characterized in that: The upper end of the machine base (5) is fixedly connected to a support tube (10), and electric push rods (9) are fixedly installed at both sides of the upper end of the machine base (5) of the support tube (10), the telescopic shaft ends of the two electric push rods (9) are fixedly connected to U-shaped plates (15), a lower pressure ring (6) is fixedly connected between the two U-shaped plates (15), the lower pressure ring (6) is located directly above the support tube (10), and pulling mechanisms are provided at the front and rear of the support tube (10), an insulating film roll (11) is installed above the machine base (5) through a conveying mechanism, the initial section of the insulating film roll (11) passes between the lower pressure ring (6) and the support tube (10), and a winding mechanism is provided between the end of the initial section of the insulating film roll (11) and the machine base (5), and a heating mechanism is provided between the puncture head (4) and the machine body (1).

2. The insulating film strength detection device according to claim 1, characterized in that: The pulling mechanism comprises two fixed plates (21), the two fixed plates (21) are symmetrically fixedly connected to the upper end of the machine base (5), and the two fixed plates (21) are respectively located on both sides of the initial section of the insulating film roll (11), and the two fixed plates (21) are elastically connected to a slide plate (8) through an elastic component, the two slide plates (8) are respectively located on both sides of the initial section of the insulating film roll (11), and the upper edges of the side walls of the two slide plates (8) are provided with square grooves (40), and the tops and bottoms of the two square grooves (40) are connected to each other. The two parts are both bonded with a pulling plate (14), the wall surfaces corresponding to each other of the two pulling plates (14) are fixedly connected with a rubber pad (27), the two rubber pads (27) are respectively bonded to the upper and lower surfaces of the initial section of the insulating film roll (11), elastic mechanisms are respectively provided between the wall surfaces of the two pulling plates (14) that are away from each other and the side walls of the two slide plates (8) that are away from each other, offset mechanisms are respectively provided between the two slide plates (8) and the two electric push rods (9), and blocking components are provided on the two fixed plates (21).

3. The insulating film strength detection device according to claim 2, characterized in that: The elastic component comprises two connecting columns (31), the two connecting columns (31) are respectively slidably inserted into the inner wall at the upper and lower edges of the fixed plate (21), and one end of the two connecting columns (31) is fixedly connected to the wall surface of the slide plate (8) away from the electric push rod (9), and a spring 2 (32) is slidably sleeved on the outer wall of the two connecting columns (31), and the two springs 2 (32) are fixedly connected between the fixed plate (21) and the slide plate (8).

4. The insulating film strength detection device according to claim 2, characterized in that: The elastic mechanism comprises a fixed block (26), the fixed block (26) being fixedly connected to the side wall of the slide plate (8) near the pulling plate (14), and the inner wall of the fixed block (26) is symmetrically slidably interspersed with guide pillars (25), one end of each of the two guide pillars (25) is fixedly connected to the wall surface of the pulling plate (14) away from the rubber pad (27), and a spring 1 (24) is slidably sleeved on the outer wall of each of the two guide pillars (25), and the two springs 1 (24) are fixedly connected between the fixed block (26) and the pulling plate (14).

5. The insulating film strength detection device according to claim 2, characterized in that: The offset mechanism comprises a transverse plate (19) and an L-shaped block (18); the transverse plate (19) is fixedly connected to a wall surface of the slide plate (8) corresponding to the electric push rod (9); an end of the transverse plate (19) away from the slide plate (8) is fixedly connected to an inclined block 1 (20); the L-shaped block (18) is fixedly connected to the upper edge of the telescopic shaft of the electric push rod (9), and the L-shaped block (18) is located above the inclined block 1 (20).

6. The insulating film strength detection device according to claim 2, characterized in that: The blocking assembly comprises a splicing block (30), wherein the splicing block (30) is fixedly connected to the upper edge of the side wall of the fixed plate (21), and the splicing block (30) is symmetrically fixedly connected to a flat plate (29) on the wall surface corresponding to the sliding plate (8) above and below, and two ends of the flat plates (29) away from the splicing block (30) are fixedly connected to inclined blocks (28), and the corresponding walls of the two inclined blocks (28) are respectively in contact with the edges of the two pulling plates (14).

7. The insulating film strength detection device according to claim 1, characterized in that: The transmission mechanism comprises a Z-shaped plate (12), the Z-shaped plate (12) being fixedly connected to the front end of the machine base (5), and a motor 1 (13) being fixedly installed on the upper end of the Z-shaped plate (12), and a stud (23) being fixedly connected to the output shaft end of the motor 1 (13), and the outer wall of the stud (23) is in contact with the inner wall of the central drum of the insulating film roll (11), and a limiting ring (39) is fixedly sleeved on the outer wall of the stud (23) near the motor 1 (13), and a rotating block (22) is threadedly sleeved on the outer wall of the stud (23) away from the limiting ring (39), and the side walls of the rotating block (22) and the limiting ring (39) corresponding to each other are respectively in contact with the two side ends of the central drum of the insulating film roll (11).

8. The insulating film strength detection device according to claim 1, characterized in that: The winding mechanism comprises an L-shaped plate (16), wherein the L-shaped plate (16) is fixedly connected to the upper end of the machine base (5) away from the insulating film roll (11), and a second motor (17) is fixedly installed on the upper end of the L-shaped plate (16), and the output shaft end of the second motor (17) is fixedly connected to a winding column (7), and the end of the insulating film roll (11) is wound and connected to the outer wall of the winding column (7).

9. The insulating film strength detection device according to claim 1, characterized in that: The heating mechanism comprises two connecting blocks (36), the two connecting blocks (36) are symmetrically fixedly connected to the side walls of the machine body (1), and the inner walls of the two connecting blocks (36) are slidably penetrated with connecting rods (38), the upper ends of the two connecting rods (38) are commonly fixedly connected to a connecting frame (33), and the outer walls of the two connecting rods (38) are slidably sleeved with springs three (37), the two springs three (37) are respectively fixedly connected between the upper ends of the two connecting blocks (36) and the connecting frame (33), and the end of the connecting frame (33) away from the machine body (1) is fixedly connected with a heating ring (35), the heating ring (35) is slidably sleeved outside the piercing head of the piercing head (4), and the upper end of the heating ring (35) is fitted with a push ring (34), and the push ring (34) is fixedly sleeved outside the piercing head of the piercing head (4).

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