Shockproof performance testing device for EPE film

Abstract

The utility model discloses an EPE film shockproof performance testing device, and relates to the EPE film testing device technology field, the EPE film shockproof performance testing device comprises a pedestal, the top surface of the pedestal is provided with a testing box, the top surface of the pedestal is connected with the testing box through a damping mechanism, the top surface of the testing box is fixedly provided with a first electric push rod, and the first electric push rod is fixedly provided with a second electric push rod. An assembly plate is fixedly installed at the bottom end of the first electric push rod, and a sealing cylinder is fixedly installed on the bottom face of the assembly plate. When the device is used, an instantaneous impact test and a compression test can be conducted on an EPE film, and the compression test and the instantaneous impact test are integrated in one device; the defect that equipment needs to be replaced frequently in a traditional test method can be effectively avoided, the test efficiency is greatly improved, and the shockproof performance test of the EPE film in a high-temperature environment can be simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to EPE film testing device technical field especially relates to a kind of EPE film shock resistance testing device. BACKGROUND

[0002] EPE film is pearl cotton film, by low-density polyethylene plastic physical foaming produces countless independent bubble structure. Soft and elastic, with good shockproof, buffering performance, also have waterproof, moisture-proof, sound insulation and other characteristics. Widely used in electronic, electrical appliances, handicrafts and other product packaging, can effectively protect goods from damage in transportation. In order to ensure that EPE film can effectively protect products from impact and vibration in actual use, its shock resistance needs to be accurately tested and evaluated.

[0003] Traditional shock resistance testing method usually uses impact hammer to carry out instantaneous impact test and compression test, simulates the instantaneous impact of product in transportation process and the pressure of product in stacking, extrusion and other aspects, but test equipment needs to be replaced when testing the two, which not only increases test cost and time, but also may introduce error in the process of replacing equipment, affect the accuracy and reliability of test result, in view of this, the present application proposes a kind of EPE film shock resistance testing device. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides an EPE film shock resistance testing device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An EPE film shock resistance testing device, comprising a base, a test box is installed on the top surface of the base, a damping mechanism is connected between the top surface of the base and the test box, a first electric push rod is fixedly installed on the top surface of the test box, an assembly plate is fixedly installed at the bottom end of the first electric push rod, a sealing cylinder is fixedly installed on the bottom surface of the assembly plate, a sealing piston is sealingly and slidably connected in the sealing cylinder, an impact rod is fixedly installed on the bottom surface of the sealing piston, a striking pad is fixedly installed at the bottom end of the impact rod, a limiting mechanism is arranged on the bottom surface of the assembly plate, and the limiting mechanism limits the sliding position of the impact rod, a bidirectional fan is fixedly installed on the top surface of the assembly plate, and the bidirectional fan is communicated with the sealing cylinder, a gas pressure detector is fixedly and communicated with the outer side of the sealing cylinder, a pressure detection disc is installed on the bottom wall of the test box, a clamping box is fixedly installed on the top surface of the pressure detection disc, a clamping mechanism is arranged in the clamping box, and heating lamps are installed on the two side walls of the clamping box.

[0007] Preferably, the limiting mechanism comprises two screw seats, and the two screw seats are symmetrically and slidingly connected to the bottom surface of the assembly plate, the bottom surface of the assembly plate is rotationally connected with a bidirectional screw rod, and the two screw seats are symmetrically and threadedly connected to the bidirectional screw rod, the outer side of each screw seat is fixedly installed with a limiting plate, and the outer side of the impact rod is fixedly installed with a fixed plate.

[0008] Preferably, the clamping mechanism comprises two second electric push rods, and the two second electric push rods are symmetrically installed on the two outer sides of the clamping box.

[0009] Preferably, the bottom surface of the assembly plate is fixedly installed with a guide rod, and each screw seat is slidingly connected with the guide rod.

[0010] Preferably, the damping mechanism comprises a plurality of spring dampers, and the plurality of spring dampers are symmetrically installed on the top surface of the base, and the top end of each spring damper is fixedly connected with the bottom surface of the test box.

[0011] Preferably, the outer side of the test box is rotationally connected with a protective door, and the outer side of the protective door is installed with a glass window.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a bidirectional fan, an impact rod, an impact pad, a limiting mechanism, a pressure detection disc and other devices are arranged, air can be injected into the sealed cylinder through the bidirectional fan, when the limiting mechanism limits the impact rod, the air pressure in the sealed cylinder gradually increases with the continuous injection of the bidirectional fan, the instantaneous impact force of the impact rod can be generated through the contact limiting, the EPE film is subjected to instantaneous impact test, when the limiting mechanism does not limit the impact rod, the continuous injection of the bidirectional fan can gradually increase the extrusion force of the impact rod on the EPE film, so that the EPE film is subjected to compression test, and the compression test and the impact test are integrated in one device, the drawbacks of traditional test methods, such as frequent replacement of equipment, can be effectively avoided, and the test efficiency is greatly improved.

[0014] 2. The utility model discloses a heating lamp and other devices are arranged, and the shock resistance of the EPE film under high temperature environment can be tested. ACCURACY OF DRAWINGS

[0015] Figure 1 The utility model provides a kind of EPE film shock resistance testing device structure schematic view;

[0016] Figure 2 The utility model provides a kind of EPE film shock resistance testing device spring damper installation structure schematic view;

[0017] Figure 3 A clamping mechanism structure schematic view of an EPE film shock resistance performance testing device is provided in the utility model.

[0018] Figure 4 A sealing cylinder sectional view structure schematic view of an EPE film shock resistance performance testing device is provided in the utility model.

[0019] Figure 5 A limiting mechanism structure schematic view of an EPE film shock resistance performance testing device is provided in the utility model.

[0020] In the drawing: 1, base; 2, test box; 3, protective door; 4, glass window; 5, first electric push rod; 6, spring damper; 7, assembly plate; 8, pressure detection disc; 9, clamping box; 10, second electric push rod; 11, clamping plate; 12, heating lamp; 13, two-way fan; 14, sealing cylinder; 15, air pressure detector; 16, sealing piston; 17, impact rod; 18, impact pad; 19, fixed plate; 20, guide rod; 21, two-way screw rod; 22, threaded seat; 23, limiting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] The utility model provides technical schemes: as Figures 1-5 As shown in the drawing, an EPE film shock resistance performance testing device comprises a base 1, the top surface of the base 1 is provided with a test box 2, the top surface of the base 1 is connected with the test box 2 through a damping mechanism, the top surface of the test box 2 is fixedly provided with a first electric push rod 5, the bottom end of the first electric push rod 5 is fixedly provided with an assembly plate 7, the bottom surface of the assembly plate 7 is fixedly provided with a sealing cylinder 14, the sealing cylinder 14 is slidably connected with a sealing piston 16, the bottom surface of the sealing piston 16 is fixedly provided with an impact rod 17, the bottom end of the impact rod 17 is fixedly provided with an impact pad 18, the bottom surface of the assembly plate 7 is provided with a limiting mechanism, and the limiting mechanism limits the sliding position of the impact rod 17, the top surface of the assembly plate 7 is fixedly provided with a two-way fan 13, the two-way fan 13 is communicated with the sealing cylinder 14, the outer side of the sealing cylinder 14 is fixedly provided with an air pressure detector 15, the bottom wall of the test box 2 is provided with a pressure detection disc 8, the top surface of the pressure detection disc 8 is fixedly provided with a clamping box 9, the clamping box 9 is provided with a clamping mechanism, and the two side walls of the clamping box 9 are provided with heating lamps 12, and the heating lamps 12 can simulate the shock resistance effect of EPE at high temperature.

[0023] The air is injected into the sealing cylinder 14 through the bidirectional fan 13, the impact rod 17 is limited through the limiting mechanism, and the air pressure of the sealing cylinder 14 can be increased as the sealing cylinder 14 is continuously injected, the impact rod 17 is instantaneously released through contact limiting, and when the impact rod 17 contacts the EPE film, the EPE is compressed for testing as the air pressure of the sealing cylinder 14 gradually increases, and it should be noted that the pressure detection disc 8 can detect the pressure received by the clamping box 9, and the shockproof effect of the EPE film is tested.

[0024] Further, the limiting mechanism comprises two threaded seats 22, and the two threaded seats 22 are symmetrically and slidably connected to the bottom surface of the assembly plate 7, the bottom surface of the assembly plate 7 is rotatably connected with a bidirectional screw rod 21, and the two threaded seats 22 are symmetrically and threadedly connected to the bidirectional screw rod 21, and the outer side of each threaded seat 22 is fixedly installed with a limiting plate 23, and the outer side of the impact rod 17 is fixedly installed with a fixed plate 19, and the top surface of each limiting plate 23 is in abutment with the bottom surface of the fixed plate 19, and it should be noted that the rotation of the bidirectional screw rod 21 is driven by an external driving source.

[0025] Further, the clamping mechanism comprises two second electric push rods 10, and the two second electric push rods 10 are symmetrically installed on the two outer sides of the clamping box 9, and the other end of each second electric push rod 10 is fixedly installed with a clamping plate 11, and the EPE film is limited through the clamping plate 11 to avoid deviation during testing.

[0026] Further, the bottom surface of the assembly plate 7 is fixedly installed with a guide rod 20, and each threaded seat 22 is slidably connected with the guide rod 20, and the threaded seat 22 is guided and limited through the guide rod 20, so that it cannot rotate.

[0027] Further, the damping mechanism comprises a plurality of spring dampers 6, and the plurality of spring dampers 6 are symmetrically installed on the top surface of the base 1, and the top end of each spring damper 6 is fixedly connected with the bottom surface of the test box 2, and the spring damper 6 can absorb the instantaneous impact damage and reduce the vibration damage.

[0028] Further, the outer side of the test box 2 is rotatably connected with a protective door 3, and the outer side of the protective door 3 is installed with a glass window 4.

[0029] The utility model provides a kind of EPE film shock resistance testing device, specific working principle is as follows: first, operating personnel can place EPE film in clamping box 9, and be slid by the clamping plate 11 of second electric push rod 10 on both sides to be clamped and limited to EPE, so that it cannot slide;

[0030] When the instantaneous impact shockproof test of the EPE is needed, the sealed cylinder 14 can be first filled with gas by starting the bidirectional air blower 13, and the bidirectional screw 21 is driven to rotate by the external driving source, so that the two threaded seats 22 slide towards each other, and are clamped below the fixed plate 19 by the limiting plate 23, so as to limit the position of the impact rod 17. Then, as the bidirectional air blower 13 continues to fill the sealed cylinder 14 with gas, the internal air pressure of the sealed cylinder 14 increases due to the sealed state of the sealed cylinder 14, and the internal air pressure value of the sealed cylinder 14 can be directly observed through the air pressure detector 15. When the air pressure value reaches the required value, the bidirectional screw 21 is driven to reverse by the external driving source, so that the two threaded seats 22 slide outward, thereby releasing the limitation of the impact rod 17, and then the air pressure drives the sealed piston 16 to slide downward, and generates an instantaneous impact force to drive the impact pad 18 to impact the clamped EPE film, and the pressure value after the EPE shockproof buffering is measured and recorded through the pressure detection disc 8, which is convenient for subsequent comparison. It should be noted that, since the bidirectional air blower 13 is bidirectional, when the sealed cylinder 14 is pumped, the impact rod 17 can be driven to slide upward for resetting.

[0031] When the EPE needs to be compressed, the assembly plate 7 can be slid downward by starting the first electric push rod 5 to release the limitation of the impact rod 17, and then the impact pad 18 is abutted with the EPE film by the air injection of the bidirectional air blower 13, and then the internal air pressure of the sealed cylinder 14 increases as the bidirectional air blower 13 continues to inject air, so that the EPE can be compressed for testing, and the multiple heating lamps 12 can simulate the shockproof test of the EPE in a high-temperature environment.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An EPE film shock resistance performance testing device, comprising a base (1), characterized in that, The top surface of the base (1) is provided with a test box (2), the top surface of the base (1) is connected with the test box (2) through a damping mechanism, the top surface of the test box (2) is fixedly provided with a first electric push rod (5), the bottom end of the first electric push rod (5) is fixedly provided with an assembly plate (7), the bottom surface of the assembly plate (7) is fixedly provided with a sealing cylinder (14), the sealing cylinder (14) is slidably connected with a sealing piston (16) in a sealed manner, the bottom surface of the sealing piston (16) is fixedly provided with an impact rod (17), the bottom end of the impact rod (17) is fixedly provided with a striking pad (18), the bottom surface of the assembly plate (7) is provided with a limiting mechanism, and the limiting mechanism limits the sliding position of the impact rod (17), the top surface of the assembly plate (7) is fixedly provided with a bidirectional fan (13), and the bidirectional fan (13) is connected with the sealing cylinder (14), the outer side of the sealing cylinder (14) is fixedly and communicatively provided with an air pressure detector (15), the bottom wall of the test box (2) is provided with a pressure detection disc (8), the top surface of the pressure detection disc (8) is fixedly provided with a clamping box (9), the clamping box (9) is provided with a clamping mechanism, and the two side walls of the clamping box (9) are provided with heating lamps (12).

2. The shock resistance testing device for EPE membrane according to claim 1, characterized in that, The limiting mechanism comprises two threaded seats (22), and the two threaded seats (22) are symmetrically and slidably connected to the bottom surface of the assembly plate (7), the bottom surface of the assembly plate (7) is rotatably connected with a bidirectional screw rod (21), and the two threaded seats (22) are symmetrically and threadedly connected to the bidirectional screw rod (21), the outer side of each threaded seat (22) is fixedly provided with a limiting plate (23), the outer side of the impact rod (17) is fixedly provided with a fixed plate (19), and the top surface of each limiting plate (23) abuts against the bottom surface of the fixed plate (19).

3. The shock resistance testing device for EPE membrane according to claim 2, characterized in that, The clamping mechanism comprises two second electric push rods (10), and the two second electric push rods (10) are symmetrically mounted on the two outer sides of the clamping box (9), and the other end of each second electric push rod (10) is fixedly provided with a clamping plate (11).

4. The shock resistance testing device for EPE membrane according to claim 3, characterized in that, The bottom surface of the assembly plate (7) is fixedly provided with a guide rod (20), and each threaded seat (22) is slidably connected with the guide rod (20).

5. The shock resistance testing device for EPE membrane according to claim 4, characterized in that, The damping mechanism comprises a plurality of spring dampers (6), and the plurality of spring dampers (6) are symmetrically mounted on the top surface of the base (1), and the top end of each spring damper (6) is fixedly connected with the bottom surface of the test box (2).

6. The shock resistance testing device for EPE membrane according to claim 5, characterized in that, The outer side of the test box (2) is rotatably connected with a protective door (3), and the outer side of the protective door (3) is provided with a glass window (4).

Images