Device for detecting puncture resistance of packaging film

Abstract

The invention discloses a packaging film puncture resistance detection device, and belongs to the technical field of packaging film detection. The device mainly comprises a shell; the simulation assembly comprises a first supporting frame, and a winding roller is rotationally mounted on the first supporting frame; an unwinding roller is rotationally mounted on the second supporting frame; rotating rods are rotationally mounted on the fixing frames; a first connecting block is mounted on the base plate; the first support frame, the second support frame, the first connecting block, the second connecting block, the two groups of first rollers, the second connecting block, the two groups of second rollers and the stepping motor are arranged on one group of fixing frames, and the output end of the stepping motor is connected with the rotating rod; the fixing frames are positioned between the first support frame and the second support frame; and the second roller is positioned above the first roller. According to the packaging film puncture resistance detection device, through the arrangement of the simulation assembly, single-layer and multi-layer puncture tests can be carried out on the packaging film, so that more test data is provided, and the effect of simulating actual packaging of the packaging film is achieved.

Description

Technical Field

[0001] This application relates to the technical field of packaging film detection, and specifically provides a device for detecting the puncture resistance of a packaging film. Background Art

[0002] A packaging film is a thin film used to wrap or cover items, usually made of materials such as polyethylene (PE), polypropylene (PP), polyester (PET), etc. It has functions such as puncture resistance, high strength, waterproofing, and dustproofing, and is widely used in fields such as food, medicine, and industrial products to protect goods from damage during transportation and storage. After the production of the packaging film is completed, it is necessary to conduct a puncture test on it to ensure that its quality meets the production specifications. For example, the patent with the publication number CN221303010U specifically discloses an anti-explosion film puncture test device. This device drives the fixed plate and the annular pressing plate to move downward simultaneously through a lifting device. The annular pressing plate first contacts the anti-explosion film and cooperates with the placement platform to press the anti-explosion film tightly. The lifting device continues to push the fixed plate downward, and the spring is compressed, so that the pressing force of the annular pressing plate gradually increases; after the puncture needle on the fixed plate abuts against the anti-explosion film and continues to move, the puncture needle pushes the anti-explosion film into the opening to test its anti-penetration performance. Since the packaging film needs to be wound around the item multiple times during the packaging process, the multiple layers of the packaging film will be in a folded state. Although the above patent can achieve the puncture test of the film, it can only perform the puncture test on a single-layer film and cannot simulate the actual situation when the packaging film is being packaged for testing. Therefore, it is necessary to provide a device for detecting the puncture resistance of a packaging film to solve the above problems.

[0003] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0004] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide a device for detecting the puncture resistance of a packaging film to achieve the effect of simulating the actual packaging of the packaging film.

[0005] The technical solution adopted by this application to solve its technical problems is as follows: A device for detecting the puncture resistance of a packaging film, comprising a housing; a puncture assembly arranged on the housing; a simulation assembly arranged on the housing, and the simulation assembly includes: a first support frame installed at one end of the housing, a winding roller rotatably installed on the first support frame; a second support frame installed at the other end of the housing, a unwinding roller rotatably installed on the second support frame; two sets of fixed frames installed on the housing, a rotating rod rotatably installed on the fixed frames; a backing plate installed on the rotating rod, a first connecting block installed on the backing plate; two sets of first rollers rotatably installed on the first connecting block; a second connecting block installed on the backing plate; two sets of second rollers rotatably installed on the second connecting block; a stepping motor installed on one of the fixed frames, and the output end of the stepping motor is connected to the rotating rod: wherein: the fixed frames are located between the first support frame and the second support frame; the second rollers are located above the first rollers.

[0006] Further, electric cylinders are hinged on both sides of the two sets of fixed frames, a push rod is installed at the output end of the electric cylinder, and a pressure roller is rotatably installed at the end of the push rod away from the electric cylinder, and the pressure roller is located below the first rollers.

[0007] Further, extension frames are installed on both sides of the two sets of fixed frames, a transition roller is rotatably installed on the extension frames, and the transition roller is located below the pressure roller.

[0008] Further, a bidirectional threaded rod is rotatably installed on the second connecting block, two sets of smoothing blocks are threadedly installed on the bidirectional threaded rod, and limiting rods are installed on the two sets of second connecting blocks, and the smoothing blocks are slidably arranged on the limiting rods.

[0009] Further, one end of the bidirectional threaded rod extends out of one of the second connecting blocks, a gear is fixedly sleeved on the extending end of the bidirectional threaded rod, an internal gear ring is installed on one of the fixed frames, the gear is located inside the internal gear ring, and the gear meshes with the internal gear ring.

[0010] Further, the upper surface and the lower surface of the smoothing block have rubber, the upper surface of the smoothing block slightly protrudes upward from the upper surface of the second roller, and the lower surface of the smoothing block slightly protrudes downward from the upper surface of the first roller.

[0011] Further, the puncture assembly includes a bracket installed on the housing, a lead screw is rotatably installed inside the bracket, a slider is threadedly installed on the lead screw, a guide rod is installed inside the bracket, and the slider is slidably arranged on the guide rod.

[0012] Further, a servo motor is installed inside the bracket, synchronous wheels are fixedly sleeved on the output end of the servo motor and the lead screw respectively, and a synchronous belt is arranged in transmission between the two synchronous wheels.

[0013] Further, a connecting plate is installed on the slider, a mounting plate is installed on the connecting plate, a pressure sensor is installed at the bottom of the mounting plate, and a puncture needle is installed on the pressure sensor.

[0014] Further, the bracket has an opening, an elastic member is provided at the opening, and the connecting plate is connected to the elastic member.

[0015] The beneficial effect of this application is: A packaging film puncture resistance detection device provided by this application can perform single-layer and multi-layer puncture tests on the packaging film through the setting of the simulation components to provide more test data and achieve the effect of simulating the actual packaging of the packaging film.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. The following will refer to the drawings for a further detailed description of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings: Figure 1 is an overall schematic diagram of a packaging film puncture resistance detection device in this application; Figure 2 is Figure 1 an enlarged schematic diagram of part A in Figure 3 is Figure 2 an enlarged schematic diagram of part B in Figure 4 is Figure 2 an enlarged schematic diagram of part C in Figure 5 is Figure 1 a sectional view of the overall in another perspective in Figure 6 is Figure 5 an enlarged schematic diagram of part D in Figure 7 is Figure 5 an enlarged schematic diagram of part E in Among them, the reference numerals in the drawings: 1, housing; 2, puncture assembly; 21, bracket; 22, elastic member; 23, connecting plate; 24, mounting plate; 25, pressure sensor; 26, puncture needle; 27, servo motor; 28, synchronous belt; 29, synchronous pulley; 210, guide rod; 211, lead screw; 212, slider; 3. Simulation component; 31. Winding roller; 32. First support frame; 33. Second support frame; 34. Unwinding roller; 35. Fixed frame; 36. Stepping motor; 37. Pad; 38. First connecting block; 381. Second connecting block; 39. First roller; 391. Second roller; 4. Electric cylinder; 41. Push rod; 42. Pressing roller; 43. Extension frame; 44. Transition roller; 45. Internal gear ring; 46. Gear; 47. Bidirectional threaded rod; 48. Limit rod; 49. Smoothing block. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] Embodiment 1: Figure 1 and Figures 5 - 7 As shown, the present application provides a packaging film puncture resistance detection device, including a housing 1, and a puncture assembly 2 is arranged on the housing 1, and the puncture assembly 2 is used for the puncture operation of the packaging film, specifically: The puncture assembly 2 includes a bracket 21 fixedly mounted on the housing 1, the bracket 21 is formed by splicing a plurality of sets of steel plates, and a screw rod 211 is rotatably mounted inside the bracket 21, a slider 212 is threadedly mounted on the screw rod 211, a guide rod 210 is fixedly mounted inside the bracket 21, and the slider 212 is slidably arranged on the guide rod 210; A servo motor 27 is fixedly installed inside the bracket 21. A synchronous wheel 29 is fixedly sleeved on the output end of the servo motor 27 and the screw rod 211, and a synchronous belt 28 is arranged between the two sets of synchronous wheels 29. Then, under the drive of the servo motor 27, the screw rod 211 is driven to rotate through the synchronous belt 28 and the synchronous wheel 29, so as to drive the slider 212 to move up and down along the axis direction of the screw rod 211, and under the restriction of the guide rod 210, the moving direction of the slider 212 is fixed; like Figures 1 - 2As shown, a connecting plate 23 is fixedly installed on the slider 212. An installation plate 24 is fixedly installed on the connecting plate 23. A pressure sensor 25 is fixedly installed at the bottom of the installation plate 24. And a puncture needle 26 is fixedly installed on the pressure sensor 25. Thus, when the slider 212 moves, it synchronously drives the connecting plate 23 to move, and further drives the pressure sensor 25 and the puncture needle 26 to move for puncturing the packaging film; It should be noted that the bracket 21 has an opening, and an elastic member 22 is arranged at the opening. The connecting plate 23 is connected to the elastic member 22 to buffer the puncture needle 26 when it pierces the packaging film. One ends of both the unwinding roller 34 and the winding roller 31 are connected to separate driving devices (not shown in the figure). The driving device can be a motor or a motor to control the rotation of the unwinding roller 34 and the winding roller 31; As Figures 2 - 4 shown, a second support frame 33 is fixedly installed at one end of the housing 1. An unwinding roller 34 is rotatably installed on the second support frame 33 for placing the packaging film to be tested. And a first support frame 32 is fixedly installed at the other end of the housing 1. A winding roller 31 is rotatably installed on the first support frame 32 to facilitate pulling out one end of the packaging film on the unwinding roller 34 and fixing it on the winding roller 31, and then rotating the winding roller 31 to wind the packaging film; Two sets of fixing frames 35 are arranged between the second support frame 33 and the first support frame 32. The fixing frames 35 are installed on the housing 1. A first connection block 38 is fixedly installed on the two sets of fixing frames 35 together. Two sets of first rollers 39 are rotatably installed on the first connection block 38 to facilitate the one end of the packaging film to pass through the upper surfaces of the two sets of first rollers 39 when connecting to the winding roller 31 to keep it in a horizontal state for the puncturing assembly 2 to perform puncturing test on it; Electric cylinders 4 are hinged on both sides of the two sets of fixing frames 35. A push rod 41 is fixedly installed at the output end of the electric cylinder 4. And a pressure roller 42 is rotatably installed at the end of the push rod 41 away from the electric cylinder 4. The pressure roller 42 is located below the first roller 39 to facilitate the packaging film on the unwinding roller 34 to pass under the pressure roller 42, then pass through the upper surfaces of the two sets of first rollers 39, and synchronously drive the push rod 41 to extend or retract as the electric cylinder 4 extends or retracts to adjust the angle of the pressure roller 42, thereby adjusting the tension of the packaging film; Continue to refer to Figure 3 , extension frames 43 are fixedly installed on both sides of the two sets of fixing frames 35. A transition roller 44 is rotatably installed on the extension frames 43. The transition roller 44 is located below the pressure roller 42 to facilitate the transition of the packaging film; In summary, during use, a packaging film is set on the unwinding roller 34. One end of the packaging film passes through the lower surface of one set of transition rollers 44, then passes through the outer surface of the pressure roller 42, and passes through the upper surfaces of two sets of first rollers 39 to keep it horizontal. Subsequently, it passes through the outer surface of the other set of pressure rollers 42 and the lower surface of the transition rollers 44, and is fixed on the winding roller 31. At this time, the electric cylinder 4 can be driven to drive the ejector rod 41 to extend and synchronously drive the pressure roller 42 to approach the transition roller 44, so as to press the packaging film. The servo motor 27 is started, and the lead screw 211 is driven to rotate through the synchronous belt 28 and the synchronous pulley 29. Furthermore, the slider 212 moves downward. Under the action of the guide rod 210, the moving direction of the slider 212 is restricted, and the pressure sensor 25 and the puncture needle 26 are driven to move downward through the connecting plate 23 and the mounting plate 24 to perform a puncture test on the packaging film. And after the test at one point is completed, the winding roller 31 can be driven to wind up to test other points of the packaging film to obtain more test data.

[0021] Embodiment 2: When the packaging film is used to package items, such as the packaging of forage, in order to ensure that the forage can be completely wrapped, the forage is usually compressed into a cylinder and is wrapped in multiple circles in a staggered manner for packaging, so as to completely cover the cylindrical forage with the packaging film. When wrapping in multiple circles in a staggered manner, some packaging films will overlap each other. Although the above process can realize the puncture test of the packaging film, the test situation is relatively single and cannot simulate the puncture situation when the overlapping part of the packaging film is pierced by a sharp object; To solve this problem, as Figures 2 - 4 shown, a simulation component 3 is provided on the housing 1. The simulation component 3 is used to simulate the actual situation of the packaging film and changes the fixed setting of the first connecting block 38 to a rotating setting; The simulation component 3 includes a rotating rod (not marked in the figure) rotatably installed on the fixing frame 35. A backing plate 37 is fixedly installed on the rotating rod. The backing plate 37 is connected to the first connecting block 38. And a stepping motor 36 is fixedly installed on the fixing frame 35. The output end of the stepping motor 36 is fixedly connected to the rotating rod. Furthermore, under the drive of the stepping motor 36, the rotating rod is driven to rotate, so as to drive the first connecting block 38 to rotate through the backing plate 37, and then drive the two sets of first rollers 39 to rotate; A second connecting block 381 is fixedly installed on the backing plate 37. Two sets of second rollers 391 are rotatably installed on the second connecting block 381. The second rollers 391 are located above the first rollers 39, and there is a gap suitable for the packaging film to pass through between the first rollers 39 and the second rollers 391; In summary, after the single-layer packaging film test is completed, the winding roller 31 winds up the punctured packaging film. After the winding is completed, the intact packaging film covers the test area again; At this time, the stepping motor 36 is started, and the first connecting block 38 and the second connecting block 381 are driven to rotate by the rotating rod, so as to Figure 4 From the Figure 4 perspective, rotate 360 degrees counterclockwise from right to left. During the rotation, the unwinding roller 34 unwinds, and both sets of electric cylinders 4 drive the ejector rods 41 to contract, driving the pressure rollers 42 away from the transition rollers 44, so that the packaging film is in a relaxed state, leaving a large margin for the subsequent flipping and folding operations of the packaging film, thereby avoiding mechanical interference when the first rollers 39 and the second rollers 391 on the right rotate to the positions of the first rollers 39 and the second rollers 391 on the left (i.e., 180 degrees); At the same time, due to the limitation of the first rollers 39 and the second rollers 391, during their rotation, a horizontal single-layer packaging film will be formed on the outer surfaces of the two sets of first rollers 39 and the outer surfaces of the two sets of second rollers 391 respectively. For the convenience of description, it is defined as a single-layer three-station; After the 360-degree rotation is completed, a horizontal double-layer packaging film will be formed on the outer surfaces of the two sets of first rollers 39 and the outer surfaces of the two sets of second rollers 391 respectively, and the packaging film passing through the inner surface of the first roller 39 will always be in a single-layer state. At this time, three test stations with double layers on the upper and lower sides and a single layer in the middle are formed. For the convenience of description, it is defined as a multi-layer three-station; At this time, control the electric cylinder 4 to extend the ejector rod 41 to adjust the angle of the pressure roller 42, thereby adjusting the tension of the packaging film, and start the puncture assembly 2 to perform a puncture test on the double-layer packaging film to test whether the puncture needle 26 can completely pierce the double-layer packaging film under the same force, and how much puncture force is required to completely pierce the double-layer packaging film.

[0022] Embodiment 3: In actual applications, the packaging film is often subjected to multi-directional stresses (such as bi-axial tension in length + width) due to handling, stacking, etc. In this case, the puncture resistance of the packaging film may change. Although the above process can achieve a puncture test on the double-layer packaging film, during the entire test process, the packaging film is only stretched by the tension force in the length direction, and it cannot simulate the situation when the packaging film is pierced by a sharp object when it is subjected to tensile forces in both the length direction and the width direction; As Figure 2 and Figure 4 shown, to solve this problem, a bidirectional threaded rod 47 is rotatably installed on the second connecting block 381. Two sets of smoothing blocks 49 are threadedly installed on the bidirectional threaded rod 47, and a limiting rod 48 is fixedly installed on the two sets of second connecting blocks 381. The smoothing block 49 is slidably arranged on the limiting rod 48, so that when the bidirectional threaded rod 47 rotates under the action of an external force, the two sets of smoothing blocks 49 are driven to approach or move away from each other along the axis of the bidirectional threaded rod 47, and under the action of the limiting rod 48, the moving direction of the smoothing block 49 is restricted; Meanwhile, one end of the bidirectional threaded rod 47 extends out of one set of the second connecting blocks 381. A gear 46 is fixedly sleeved on the extended end of the bidirectional threaded rod 47. Meanwhile, an internal gear ring 45 is fixedly installed on one set of the fixing frames 35. The gear 46 is located inside the internal gear ring 45 and meshes with the internal gear ring 45. Furthermore, when the second connecting block 381 rotates, it synchronously drives the bidirectional threaded rod 47 to rotate, thereby driving the gear 46 to rotate, driving the bidirectional threaded rod 47 to rotate, and further driving the two smoothing blocks 49 to move away from each other. It should be noted that in the initial state, the two smoothing blocks 49 are close to each other, and the axes of the bidirectional threaded rod 47 and the guide rod 210 and the axis of the second roller 391 are in the same horizontal plane, and the diameters of the bidirectional threaded rod 47 and the guide rod 210 are smaller than the diameter of the second roller 391 to prevent the packaging film from contacting the bidirectional threaded rod 47 and the guide rod 210 when the second roller 391 rotates. The upper and lower surfaces of the smoothing block 49 are provided with rubber (not marked in the figure), and the upper surface of the smoothing block 49 slightly protrudes upward from the upper surface of the second roller 391, and the lower surface of the smoothing block 49 slightly protrudes downward from the upper surface of the first roller 39. Furthermore, when the second roller 391 and the first roller 39 rotate, the upper surface of the smoothing block 49 contacts the packaging film on the upper surfaces of the two second rollers 391, and the lower surface contacts the packaging film in the middle layer. As they continue to rotate, the smoothing blocks 49 continue to move away from each other. Since rubber has a large coefficient of friction, there is a large frictional force between its upper and lower surfaces and the packaging film. Therefore, when the smoothing blocks 49 move, a tensile force is applied to the width direction of the packaging film. In summary, after the detection of Embodiment 1, the winding roller 31 winds up to wind up the punctured part. Subsequently, the stepping motor 36 is started to drive the two first rollers 39 and the second roller 391 to rotate 360 degrees to form a double-layer three-station. And during the rotation process, the gear 46 is synchronously driven to rotate in the internal gear ring 45, driving the bidirectional threaded rod 47 to rotate, thereby driving the two smoothing blocks 49 to move away from each other. And the moving direction is restricted under the action of the limiting rod 48, so as to stretch the upper double-layer packaging film and the middle single-layer packaging film to simulate the state when both the length and width directions of the double-layer packaging film and the single-layer packaging film are stretched, while the double-layer packaging film at the bottom is not stretched. Subsequently, the puncturing assembly 2 is started to test the packaging films at the three different state stations to obtain more test data. And since the double-layer packaging film at the bottom is not stretched, the original data when the double-layer packaging film is only stretched in the length direction can be obtained, and the original data when the single-layer packaging film is only stretched in the length direction can be obtained through the method of Embodiment 1, and then compared with the data of the other two stations.

[0023] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A packaging film puncture resistance detection device, characterized in that: include: A housing (1); a puncture assembly (2), wherein the puncture assembly (2) is arranged on the housing (1); A simulation component (3), the simulation component (3) being arranged on the shell (1), the simulation component (3) comprising: a first support frame (32), the first support frame (32) being mounted on one end of the shell (1), a winding roller (31) being rotatably mounted on the first support frame (32); a second support frame (33), the second support frame (33) being mounted on the other end of the shell (1), a unwinding roller (34) being rotatably mounted on the second support frame (33); two sets of fixed frames (35), the fixed frames (35) being mounted on the shell (1), a rotating rod being rotatably mounted on the fixed frames (35); a pad (37), the pad (37) being mounted on the rotating rod, a first connecting rod being mounted on the pad (37) A connecting block (38); two groups of first rollers (39), the first rollers (39) being rotatably mounted on the first connecting block (38); a second connecting block (381), the second connecting block (381) being mounted on the pad (37); two groups of second rollers (391), the second rollers (391) being rotatably mounted on the second connecting block (381); a stepping motor (36), the stepping motor (36) being mounted on one group of the fixing frames (35), the output end of the stepping motor (36) being connected to a rotating rod; wherein: the fixing frame (35) is located between the first supporting frame (32) and the second supporting frame (33); and the second roller (391) is located above the first roller (39).

2. A packaging film puncture resistance detection device according to claim 1, characterized in that: Electric cylinders (4) are hingedly connected to both sides of the two sets of fixed frames (35), and a push rod (41) is installed at the output end of the electric cylinder (4). A pressure roller (42) is rotatably installed at one end of the push rod (41) away from the electric cylinder (4), and the pressure roller (42) is located below the first roller (39).

3. A packaging film puncture resistance detection device according to claim 2, characterized in that: Extension frames (43) are installed on both sides of the two groups of fixed frames (35), and transition rollers (44) are rotatably installed on the extension frames (43), and the transition rollers (44) are located below the pressure rollers (42).

4. A packaging film puncture resistance detection device according to claim 1, characterized in that: A bidirectional threaded rod (47) is rotatably mounted on the second connecting block (381), two groups of smoothing blocks (49) are threadably mounted on the bidirectional threaded rod (47), limiting rods (48) are mounted on the two groups of second connecting blocks (381), and the smoothing blocks (49) are slidably mounted on the limiting rods (48).

5. A packaging film puncture resistance detection device according to claim 4, characterized in that: One end of the bidirectional threaded rod (47) extends out of one group of the second connecting blocks (381); the end of the bidirectional threaded rod (47) extending out is fixedly sleeved with a gear (46); an inner gear ring (45) is mounted on one group of the fixing frames (35); the gear (46) is located inside the inner gear ring (45), and the gear (46) is meshed with the inner gear ring (45).

6. A packaging film puncture resistance detection device according to claim 5, characterized in that: The upper and lower surfaces of the smoothing block (49) are provided with rubber, the upper surface of the smoothing block (49) slightly protrudes upwards from the upper surface of the second roller (391), and the lower surface of the smoothing block (49) slightly protrudes downwards from the upper surface of the first roller (39).

7. A packaging film puncture resistance detection device according to claim 1, characterized in that: The puncture assembly (2) comprises a bracket (21) mounted on the housing (1), a screw rod (211) rotatably mounted inside the bracket (21), a slider (212) threadedly mounted on the screw rod (211), a guide rod (210) mounted inside the bracket (21), and the slider (212) slidably disposed on the guide rod (210).

8. A packaging film puncture resistance detection device according to claim 7, characterized in that: A servo motor (27) is installed inside the bracket (21), and a synchronous wheel (29) is fixedly sleeved on the output end of the servo motor (27) and the screw rod (211), and a synchronous belt (28) is provided between two sets of the synchronous wheels (29) for transmission.

9. A packaging film puncture resistance detection device according to claim 8, characterized in that: A connecting plate (23) is mounted on the sliding block (212), a mounting plate (24) is mounted on the connecting plate (23), a pressure sensor (25) is mounted on the bottom of the mounting plate (24), and a puncture needle (26) is mounted on the pressure sensor (25).

10. A packaging film puncture resistance detection device according to claim 9, characterized in that: The bracket (21) has an opening, an elastic member (22) is provided at the opening, and the connecting plate (23) is connected to the elastic member (22).

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