Constant-temperature explosion-proof testing device for packaging box

Abstract

The utility model discloses a packaging box constant-temperature explosion-proof testing device, which relates to the technical field of packaging box testing equipment and comprises a constant-temperature box, a front door is movably mounted at the front end of the constant-temperature box, a temperature and humidity sensor is fixedly mounted on one side in the constant-temperature box, and the temperature and humidity sensor is electrically connected with a main controller in the constant-temperature box through a connecting wire. A pressure testing mechanism is further arranged at the bottom in the constant-temperature box and comprises an I-shaped base, two stand columns are fixedly installed at the upper end of the I-shaped base, and a cross beam A is fixedly connected between the two stand columns. The pressure testing mechanism is arranged in the constant-temperature box, explosion-proof and pressure-resistant testing can be carried out on the packaging box under the constant-temperature condition, data accuracy can be improved, meanwhile, the pressure testing mechanism is further composed of a hydraulic cylinder, a mounting frame, a loading shaft, a pressing rod, a pressing plate and other components, the pressure contact area of the packaging box can be rapidly adjusted, and the testing accuracy is improved. Therefore, the performance of the packaging box under different pressures can be known, and a basis is provided for design and improvement of the packaging box.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box testing equipment, in particular to a packaging box constant temperature explosion-proof testing device. Background Art

[0002] The explosion-proof test of packaging boxes is a test to evaluate whether the packaging boxes can effectively protect the safety of the internal items when subjected to impact or pressure. This test is designed to ensure that the product can resist accidents during transportation, storage and use, and reduce the losses and risks caused by packaging damage;

[0003] When testing a packaging box, a pressure tester is generally used. It can detect the compression resistance of the packaging box by applying different pressures. This equipment can usually adjust the pressure and test time to simulate different situations. However, the existing pressure tester cannot adjust the contact area with the packaging box when performing explosion-proof tests on the packaging box, which makes the test data incomplete. In addition, most packaging boxes are tested indoors during pressure testing, so the constant temperature of the packaging box cannot be guaranteed, because temperature fluctuations may affect the materials and performance of the packaging box, and thus affect the results of the explosion-proof test. At different temperatures, the physical properties and mechanical properties of the material may change, resulting in inaccurate test results. At the same time, under non-constant temperature conditions, the performance of the packaging box may change with changes in temperature. This may cause a packaging box that passes the test at some temperatures to fail the test at other temperatures, or to show different performance characteristics at different temperatures. Utility Model Content

[0004] The utility model aims to provide a constant temperature explosion-proof testing device for a packaging box, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A constant temperature explosion-proof testing device for a packaging box, comprising a constant temperature box, a front door movably installed at the front end of the constant temperature box, a temperature and humidity sensor fixedly installed on one side of the constant temperature box, the temperature and humidity sensor is electrically connected to a main controller in the constant temperature box through a connecting line, and a pressure testing mechanism is also provided at the bottom of the constant temperature box, the pressure testing mechanism comprises an I-shaped base, two columns are fixedly installed on the upper end of the I-shaped base, a beam A is fixedly connected between the two columns, two beams B are fixedly connected between the two columns located below the beam A, hydraulic cylinders are fixedly installed on the upper ends of the two beams B, the hydraulic cylinders are connected to an external press through pipelines, the output end of the hydraulic cylinder extends to the position below the beam B and is fixedly installed with a mounting frame, a loading shaft is movably installed in the mounting frame, and a plurality of pressure rods are movably installed on the outside of the loading shaft.

[0007] As a further optimization solution of the utility model, a supporting platform is fixedly installed on the I-shaped base between the two columns.

[0008] As a further optimization scheme of the utility model, the mounting frame is in a C-shaped structure, a mounting hole A is provided at the center position of the upper end of the mounting frame, mounting holes B are provided at both ends of the mounting frame, the mounting frame is installed on the output end of the hydraulic cylinder through the mounting hole A and is fixed by a nut. With the help of the C-shaped mounting frame, the rotation installation of the loading shaft can be facilitated.

[0009] As a further optimization solution of the present invention, a fixing ring is fixedly installed on the mounting frame located on one side of the mounting hole B, and six positioning grooves are opened on the inner side of the fixing ring.

[0010] As a further optimization scheme of the utility model, fixed shafts are fixedly installed at the center positions of both ends of the loading shaft, a limiting block is fixedly installed at one end of the fixed shaft, and the fixed shaft is rotatably installed in the mounting hole B and the positioning groove, that is, the loading shaft is rotatably installed in the mounting frame through the fixed shafts at both ends, and the positioning protrusions are clamped in the corresponding positioning grooves. With the help of the rotatable loading shaft, different pressure rods can be quickly switched, and the setting of the positioning protrusions and the positioning grooves can facilitate the positioning control of the rotation angle of the loading shaft.

[0011] As a further optimization scheme of the utility model, six screw grooves are opened on the outside of the loading shaft, and studs are fixedly installed at one end of the six pressure rods. The studs are threadedly connected in the corresponding screw grooves, and five of the pressure rods are respectively fixedly installed with pressure plates at one end. The diameters of the five pressure plates are different. Through the arrangement of six pressure rods and five pressure plates, different contact areas can be used to detect the pressure resistance and explosion-proof performance of the packaging box.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a constant temperature explosion-proof testing device for a packaging box, in which a pressure testing mechanism is arranged in a constant temperature box, and can perform explosion-proof and pressure-resistant tests on the packaging box under constant temperature conditions, which is beneficial to improving the accuracy of data. At the same time, the pressure testing mechanism is also composed of a hydraulic cylinder, a mounting frame, a loading shaft, a pressure rod, a pressure plate and other components, which can quickly adjust the area of ​​pressure contact with the packaging box, so as to understand the performance of the packaging box under different pressures and provide a basis for the design and improvement of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the pressure testing mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the disassembly of the mounting frame and the loading shaft structure of the utility model.

[0017] In the figure: 1. Constant temperature box; 2. Front door; 3. Temperature and humidity sensor; 4. Pressure testing mechanism; 5. I-shaped base; 6. Column; 7. Beam A; 8. Beam B; 9. Hydraulic cylinder; 10. Mounting frame; 11. Loading shaft; 12. Pressure rod; 13. Support platform; 14. Mounting hole A; 15. Mounting hole B; 16. Fixing ring; 17. Positioning groove; 18. Fixed shaft; 19. Limit block; 20. Positioning protrusion; 21. Screw groove; 22. Stud; 23. Pressure plate; 24. Limit knob. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 3 As shown, the utility model provides a constant temperature explosion-proof testing device for a packaging box, comprising a constant temperature box 1, a front door 2 is movably installed at the front end of the constant temperature box 1, a temperature and humidity sensor 3 is fixedly installed on one side of the constant temperature box 1, the temperature and humidity sensor 3 is electrically connected to the main controller in the constant temperature box 1 through a connecting line, and a pressure testing mechanism 4 is also arranged at the bottom of the constant temperature box 1, the pressure testing mechanism 4 comprises an I-shaped base 5, two columns 6 are fixedly installed on the upper end of the I-shaped base 5, a cross beam A7 is fixedly connected between the two columns 6, two cross beams B8 are fixedly connected between the two columns 6 located below the cross beam A7, a hydraulic cylinder 9 is fixedly installed on the upper ends of the two cross beams B8, the hydraulic cylinder 9 is connected to an external press through a pipeline, the output end of the hydraulic cylinder 9 extends to the position below the cross beam B8 and is fixedly installed with a mounting frame 10, a loading shaft 11 is movably installed in the mounting frame 10, and a plurality of pressure rods 12 are movably installed on the outside of the loading shaft 11.

[0020] A supporting platform 13 is also fixedly installed on the I-shaped base 5 between the two columns 6. The mounting frame 10 is in a C-shaped structure. A mounting hole A14 is provided at the center of the upper end of the mounting frame 10. Mounting holes B15 are also provided at both ends of the mounting frame 10. The mounting frame 10 is inserted and installed on the output end of the hydraulic cylinder 9 through the mounting hole A14 and fixed by a nut. With the help of the C-shaped mounting frame 10, the rotational installation of the loading shaft 11 can be facilitated. A fixing ring 16 is also fixedly installed on the mounting frame 10 on one side of the mounting hole B15. Six positioning grooves 17 are also provided on the inner side of the fixing ring 16. Fixed shafts 18 are fixedly installed at the center of both ends of the loading shaft 11. A limiting block 19 is fixedly installed at one end of the fixed shaft 18. The fixed shaft 18 is rotatably installed between the mounting hole B15 and the fixed groove 17. The loading shaft 11 is rotatably installed in the mounting frame 10 through the fixed shafts 18 at both ends, and the positioning protrusions 20 are clamped in the corresponding positioning grooves 17. With the help of the rotatable loading shaft 11, different pressure rods 12 can be quickly switched, and the setting of the positioning protrusions 20 and the positioning grooves 17 can facilitate the positioning control of the rotation angle of the loading shaft 11. Six screw grooves 21 are opened on the outside of the loading shaft 11, and studs 22 are fixedly installed at one end of the six pressure rods 12. The studs 22 are threadedly connected in the corresponding screw grooves 21, and five of the pressure rods 12 are respectively fixedly installed with pressure plates 23 at one end. The diameters of the five pressure plates 23 are all different. Through the setting of six pressure rods 12 and five pressure plates 23, different contact areas can be used to detect the pressure resistance and explosion-proof performance of the packaging box.

[0021] It should be noted that the utility model is a constant temperature explosion-proof test device for a packaging box. When performing an explosion-proof and pressure-resistant test on a packaging box, the packaging box can be placed on a supporting platform 13, and then the front door 2 is closed, and the ambient temperature in the constant temperature box 1 is ensured to be in a constant temperature state. Then, the downward pressure of the output end of the hydraulic cylinder 9 is gradually controlled by the controller on the constant temperature box 1, so that the output end of the hydraulic cylinder 9 drives the mounting frame 10 and the loading shaft 11 to move downward, so that the loading shaft 11 contacts the packaging box with the help of the pressure rod 12 or the pressure plate 23 in the position directly below, so as to judge the explosion-proof of the packaging box by recording the output pressure value of the hydraulic cylinder 9. In order to improve the pressure resistance performance, when the pressure plates 23 of different diameters need to be replaced, the limit knob 24 can be directly rotated on one of the fixed shafts 18 toward the limit block 19 at one end thereof, so that one side of the limit knob 24 is disengaged from the corresponding fixed ring 16, and the loading shaft 11 can be manually driven to rotate, so that the loading shaft 11 drives the fixed shafts 18 at both ends to rotate in the corresponding mounting holes B15 and the fixed rings 16, so that the positioning protrusions 20 on the outside of the fixed shaft 18 can be sequentially inserted into the corresponding positioning grooves 17, which can facilitate the fixed-distance rotation of the loading shaft 11, so that different pressure rods 12 or pressure plates 23 are facing directly downward.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A constant temperature explosion-proof testing device for a packaging box, characterized in that: The thermostatic box (1) comprises a front door (2) movably mounted at the front end of the thermostatic box (1), a temperature and humidity sensor (3) fixedly mounted on one side of the thermostatic box (1), the temperature and humidity sensor (3) being electrically connected to a main controller in the thermostatic box (1) via a connecting line, a pressure testing mechanism (4) being further arranged at the bottom of the thermostatic box (1), the pressure testing mechanism (4) comprising an I-shaped base (5), two columns (6) being fixedly mounted on the upper end of the I-shaped base (5), a horizontal shaft being fixedly connected between the two columns (6) A beam A (7), two beams B (8) are fixedly connected between two uprights (6) located below the beam A (7), a hydraulic cylinder (9) is fixedly installed on the upper ends of the two beams B (8), the hydraulic cylinder (9) is connected to an external press through a pipeline, the output end of the hydraulic cylinder (9) extends to the position below the beam B (8) and is fixedly installed with a mounting frame (10), a loading shaft (11) is movably installed in the mounting frame (10), and a plurality of pressure rods (12) are movably installed outside the loading shaft (11).

2. A packaging box constant temperature explosion-proof testing device according to claim 1, characterized in that: A supporting platform (13) is also fixedly mounted on the I-shaped base (5) between the two upright posts (6).

3. A packaging box constant temperature explosion-proof testing device according to claim 1, characterized in that: The mounting frame (10) is in a C-shaped structure. A mounting hole A (14) is provided at the center of the upper end of the mounting frame (10). Mounting holes B (15) are provided at both ends of the mounting frame (10). The mounting frame (10) is installed on the output end of the hydraulic cylinder (9) through the mounting hole A (14) and is fixed by a nut.

4. A packaging box constant temperature explosion-proof testing device according to claim 3, characterized in that: A fixing ring (16) is also fixedly mounted on the mounting frame (10) located on one side of the mounting hole B (15), and six positioning grooves (17) are also provided on the inner side of the fixing ring (16).

5. A packaging box constant temperature explosion-proof testing device according to claim 4, characterized in that: A fixed shaft (18) is fixedly installed at the center position of both ends of the loading shaft (11), a limit block (19) is fixedly installed at one end of the fixed shaft (18), and the fixed shaft (18) is rotatably installed in the mounting hole B (15) and the positioning groove (17), that is, the loading shaft (11) is rotatably installed in the mounting frame (10) through the fixed shafts (18) at both ends, and the positioning protrusions (20) are clamped in the corresponding positioning grooves (17).

6. A packaging box constant temperature explosion-proof testing device according to claim 1, characterized in that: Six screw grooves (21) are formed on the outer side of the loading shaft (11), and studs (22) are fixedly mounted on one end of the six pressure rods (12). The studs (22) are threadedly connected in the corresponding screw grooves (21), and pressure plates (23) are fixedly mounted on one end of five of the pressure rods (12), and the diameters of the five pressure plates (23) are all different.

Images