A precise testing device for the compression strength of a packaging box

Abstract

This utility model discloses a precise testing device for the compressive strength of packaging boxes, relating to the field of testing technology. The device includes a testing base plate, a support frame fixedly connected to the top of the base plate, a pressure sensor mounted on the top of the base plate, and a testing limiting structure located on the base plate. The limiting structure includes a mounting frame, a lifting plate, a drive motor, and a threaded rod. The mounting frame is fixedly connected to one side of the base plate, and a sliding groove is formed on the side of the mounting frame closest to the base plate. The drive motor is fixedly mounted on the top of the mounting frame. Through the cooperation of the mounting frame, the lifting plate, and the limiting plate, the consistency of the compression height can be ensured. Regardless of the height of the packaging box being tested, it can be conducted under the same testing conditions. This provides good lateral comparability for multiple sets of test data, enabling a more scientific and objective assessment of the packaging box quality.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a device for accurately testing the compressive strength of packaging boxes. Background Technology

[0002] With the continuous development of my country's packaging industry, packaging boxes are needed for packaging. Packaging boxes are made by folding packaging cardboard. The packaging cardboard is first cut into the required size, and then printed, grooved, and nailed through a series of processes to finally make packaging boxes. Chinese utility model patent, authorized announcement number "CN220019147U", discloses a packaging box compressive strength testing device. This utility model uses a moving beam to cause the limiting rod to drive the moving plate to press on the top of the detection plate. The detection plate will then press on the top of the packaging box body. When the packaging box body is flattened by the detection plate, the pressure at this time is detected by the detection plate, and the pressure is obtained through the back-end terminal. At the same time, the device is convenient to detect and the force is evenly distributed.

[0003] In the above-mentioned technical solution, during the packaging box compression strength test, the pressing height of the testing plate is controlled by a mechanical device. However, the height of the boxes to be tested varies. To obtain accurate compression strength data, it is necessary to start pressing from the moment the testing plate contacts the top of the box until the testing plate descends a specific distance. Then, by observing the degree of deformation of the box, it is determined whether the strength of boxes of different heights meets the standard. However, the existing technical solution lacks a precise limiting structure. For boxes of different heights, it is difficult to ensure the consistency of the pressing height. This crude control method is not only prone to data deviation due to excessive or insufficient pressing during testing, but may also cause multiple sets of test data to lack horizontal comparability due to inconsistent test conditions. This greatly affects the reliability of the test data and cannot provide a scientific and effective basis for the quality assessment of packaging boxes. Therefore, we propose a precise testing device for the compression strength of packaging boxes. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art: to provide a precise testing device for the compressive strength of packaging boxes, which can solve the problem of difficulty in ensuring the consistency of the compression height when dealing with boxes of different heights. This crude control method is not only prone to data deviation due to excessive or insufficient compression during testing, but may also cause a lack of horizontal comparability among multiple sets of test data due to inconsistent testing conditions, greatly affecting the reliability of the test data and failing to provide a scientific and effective basis for the quality assessment of packaging boxes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for accurately testing the compressive strength of packaging boxes, comprising:

[0006] The test base plate has a support frame fixedly connected to its top, and a pressure sensor is installed on the top of the test base plate.

[0007] Test the limiting structure, which is located on the test base plate;

[0008] The test limiting structure includes a mounting frame, a lifting plate, a drive motor, and a threaded rod. The mounting frame is fixedly connected to one side of the test base plate. A sliding groove is provided on the side of the mounting frame near the test base plate. The drive motor is fixedly mounted on the top of the mounting frame. The output end of the drive motor rotates and extends into the interior of the sliding groove and is fixedly connected to the threaded rod. The threaded rod is rotatably connected to the interior of the sliding groove. A protrusion on the lifting plate is threaded onto the outer surface of the threaded rod. The protrusion on the lifting plate is slidably connected to the interior of the sliding groove.

[0009] Preferably, the test limiting structure further includes two limiting plates, a bidirectional threaded rod, and a rotating motor. The rotating motor is fixedly installed on one side of the lifting plate. The output end of the rotating motor extends into the interior of the lifting plate and is fixedly connected to the bidirectional threaded rod. The bidirectional threaded rod is rotatably connected to the interior of the lifting plate. Both limiting plates are threaded onto the outer surface of the bidirectional threaded rod, and both limiting plates are slidably connected to the interior of the lifting plate.

[0010] Preferably, a test base is fixedly connected to the top of the test base plate, a pressure sensor is fixedly installed on the inner bottom wall of the test base, and a support plate is fixedly connected to the top of the pressure sensor, with the support plate located inside the test base.

[0011] Preferably, two electric telescopic rods are fixedly installed on the inner top wall of the support frame, and pressure plates are fixedly connected to the telescopic ends of the two electric telescopic rods.

[0012] Preferably, electric push rods are fixedly installed on both sides of the support frame, and the telescopic ends of the two electric push rods slide into the interior of the support frame and are fixedly connected to a movable frame. Multiple rotating rollers are rotatably connected inside the two movable frames.

[0013] Preferably, a control panel is fixedly installed on the top of the test base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This packaging box compression strength precision testing device, through the cooperation of the mounting frame, lifting plate and limiting plate, can ensure the consistency of the compression height. Regardless of the height of the packaging box being tested, it can be carried out under the same testing conditions. This makes multiple sets of test data have good horizontal comparability, thus enabling a more scientific and objective evaluation of the packaging box quality. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the support frame structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the mounting bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the test base of this utility model;

[0021] Figure 5 This is a schematic diagram of the pressure sensor structure of this utility model.

[0022] Reference numerals in the attached diagram: 1. Test base plate; 2. Support frame; 3. Pressure plate; 4. Electric telescopic rod; 5. Test base; 6. Support plate; 7. Control panel; 8. Electric push rod; 9. Mounting frame; 10. Rotating roller; 11. Moving frame; 12. Drive motor; 13. Lifting plate; 14. Rotating motor; 15. Limiting plate; 16. Bidirectional threaded rod; 17. Sliding groove; 18. Threaded rod; 19. Pressure sensor. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a device for accurately testing the compressive strength of packaging boxes, comprising:

[0028] Test base plate 1, with a support frame 2 fixedly connected to the top of test base plate 1, and a pressure sensor 19 installed on the top of test base plate 1;

[0029] Test the limiting structure, which is located on the test base plate 1;

[0030] The test limiting structure includes a mounting frame 9, a lifting plate 13, a drive motor 12, and a threaded rod 18. The mounting frame 9 is fixedly connected to one side of the test base plate 1. A sliding groove 17 is provided on the side of the mounting frame 9 near the test base plate 1. The drive motor 12 is fixedly mounted on the top of the mounting frame 9. The output end of the drive motor 12 rotates and extends into the interior of the sliding groove 17 and is fixedly connected to the threaded rod 18. The threaded rod 18 is rotatably connected to the interior of the sliding groove 17. A protrusion on the lifting plate 13 is threadedly sleeved on the outer surface of the threaded rod 18. The protrusion on the lifting plate 13 is slidably connected to the interior of the sliding groove 17.

[0031] The test limiting structure also includes two limiting plates 15, a bidirectional threaded rod 16, and a rotating motor 14. The rotating motor 14 is fixedly installed on one side of the lifting plate 13. The output end of the rotating motor 14 extends into the interior of the lifting plate 13 and is fixedly connected to the bidirectional threaded rod 16. The bidirectional threaded rod 16 is rotatably connected to the interior of the lifting plate 13. Both limiting plates 15 are threaded onto the outer surface of the bidirectional threaded rod 16, and both limiting plates 15 are slidably connected to the interior of the lifting plate 13.

[0032] A test base 5 is fixedly connected to the top of the test base plate 1. A pressure sensor 19 is fixedly installed on the inner bottom wall of the test base 5. A support plate 6 is fixedly connected to the top of the pressure sensor 19. The support plate 6 is located inside the test base 5. Two electric telescopic rods 4 are fixedly installed on the inner top wall of the support frame 2. A pressure plate 3 is fixedly connected to the telescopic ends of the two electric telescopic rods 4.

[0033] Electric push rods 8 are fixedly installed on both sides of the support frame 2. The telescopic ends of the two electric push rods 8 slide into the interior of the support frame 2 and are fixedly connected to the movable frame 11. Multiple rotating rollers 10 are rotatably connected inside the two movable frames 11. A control panel 7 is fixedly installed on the top of the test base plate 1.

[0034] Furthermore, when using the device, the packaging box to be tested is placed on the support plate 6 inside the test base 5. The pressure sensor 19 is connected below the support plate 6. Through the control panel 7, the operator can start the system and set various parameters for this test. When testing packaging boxes of different heights, the drive motor 12 at the top of the mounting bracket 9 is started. The output end of the drive motor 12 drives the threaded rod 18 to rotate in the sliding groove 17. Since the protrusion on the lifting plate 13 is threadedly connected to the threaded rod 18 and slides in the sliding groove 17, the lifting plate 13 will move up and down along the axis of the threaded rod 18 to adjust to a suitable height, thereby determining the starting height of the pressure plate 3, so that the lifting plate 13 can be located at a fixed distance below the test of the packaging box to be tested, and the lifting plate 13 does not contact the packaging box.

[0035] The rotating motor 14 on one side of the lifting plate 13 is activated. The rotating motor 14 drives the bidirectional threaded rod 16 to rotate within the lifting plate 13, causing the two limiting plates 15, which are threaded onto the bidirectional threaded rod 16, to move in opposite directions. By adjusting the distance between the two limiting plates 15, the packaging boxes of different widths are limited. The electric telescopic rod 4 on the inner top wall of the support frame 2 is activated. Its telescopic end drives the pressure plate 3 to move downward, applying pressure to the packaging box. As the pressure plate 3 presses down, the packaging box deforms. The pressure sensor 19 monitors in real time and transmits the pressure data to the control panel 7. During the test, in order to simulate the stress state of the packaging box during actual transportation or stacking, the electric push rods 8 on both sides of the support frame 2 are activated. The telescopic end of the electric push rod 8 pushes the moving frame 11, causing the rotating roller 10 to contact the side of the packaging box, thereby facilitating the limitation of the packaging box and preventing it from moving.

[0036] During the test, pressure sensor 19 collects pressure data in real time and records the deformation of the packaging box under different pressures. After the test, control panel 7 analyzes the collected data, obtains the compressive strength of the packaging box, and displays the results intuitively for operators to refer to.

[0037] With the cooperation of the mounting frame 9, the lifting plate 13 and the limiting plate 15, the consistency of the pressing height can be ensured. No matter what height of the packaging box is being tested, it can be carried out under the same test conditions. This makes multiple sets of test data have good horizontal comparability, so that the quality of the packaging box can be evaluated more scientifically and objectively.

[0038] Structural Description: Test Base Plate 1: The basic structure of the device, which bears all components and provides stable support;

[0039] Support frame 2: Fixed to the top of the test base plate 1, forming the test space frame;

[0040] Pressure sensor 19: Installed on the inner bottom wall of test base 5, it detects the pressure value of the packaging box in real time;

[0041] Mounting bracket 9: Fixed to the side of the test base plate 1, providing a mounting base for the drive motor 12 and the sliding groove 17;

[0042] Lifting plate 13: Driven by threaded rod 18, it moves vertically along sliding groove 17 to adjust the limit height;

[0043] Drive motor 12: The output end drives the threaded rod 18 to rotate, controlling the lifting action of the lifting plate 13;

[0044] Threaded rod 18: It engages with the threaded protrusion of the lifting plate 13 to achieve precise displacement of the lifting plate 13;

[0045] The bidirectional threaded rod 16 is driven to rotate by the rotary motor 14, and the distance between the two limit plates 15 is adjusted synchronously.

[0046] Test base 5: Fixed to the top of test base plate 1, and integrates pressure sensor 19 and support plate 6 inside;

[0047] Support plate 6: Located inside the test base 5, it serves as a platform for direct pressure bearing of the packaging box;

[0048] Electric telescopic rod 4: The telescopic end drives the pressure plate 3 to move vertically, applying a controllable pressure load;

[0049] Pressure plate 3: Driven by electric telescopic rod 4, it applies uniform pressure to the packaging box;

[0050] Mobile frame 11: Internally installed rotating roller 10, which moves with the electric push rod 8 to limit the displacement of the packaging box;

[0051] Rotating roller 10: rolls in contact with the packaging box surface to reduce friction and constrain horizontal movement;

[0052] Control Panel 7: Integrated control module, used to set test parameters and monitor system operation status.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A precision testing device for the crush resistance of a carton, characterized in that, include: Test base plate (1), a support frame (2) is fixedly connected to the top of the test base plate (1), and a pressure sensor (19) is installed on the top of the test base plate (1); Test the limiting structure, which is located on the test base plate (1); The test limiting structure includes a mounting bracket (9), a lifting plate (13), a drive motor (12), and a threaded rod (18). The mounting bracket (9) is fixedly connected to one side of the test base plate (1), and a sliding groove (17) is provided on the side of the mounting bracket (9) close to the test base plate (1). Among them, the drive motor (12) is fixedly installed on the top of the mounting bracket (9), and the output end of the drive motor (12) extends into the interior of the sliding groove (17) and is fixedly connected to the threaded rod (18). The threaded rod (18) is rotatably connected to the interior of the sliding groove (17). Among them, the protrusion on the lifting plate (13) is threaded onto the outer surface of the threaded rod (18), and the protrusion on the lifting plate (13) is slidably connected to the inside of the sliding groove (17).

2. The device for accurately testing the compression strength of a packaging box according to claim 1, wherein: The test limiting structure also includes two limiting plates (15), a bidirectional threaded rod (16), and a rotating motor (14), with the rotating motor (14) fixedly installed on one side of the lifting plate (13); The output end of the rotating motor (14) extends into the interior of the lifting plate (13) and is fixedly connected to the bidirectional threaded rod (16). The bidirectional threaded rod (16) is rotatably connected to the interior of the lifting plate (13). The two limiting plates (15) are threaded onto the outer surface of the bidirectional threaded rod (16). The two limiting plates (15) are slidably connected to the interior of the lifting plate (13).

3. The precise testing device for the compressive strength of a packaging box according to claim 1, characterized in that: The test base (5) is fixedly connected to the top of the test base plate (1), and the pressure sensor (19) is fixedly installed on the inner bottom wall of the test base (5). The support plate (6) is fixedly connected to the top of the pressure sensor (19), and the support plate (6) is located inside the test base (5).

4. The precise testing device for the compressive strength of a packaging box according to claim 1, characterized in that: Two electric telescopic rods (4) are fixedly installed on the inner top wall of the support frame (2), and pressure plates (3) are fixedly connected to the telescopic ends of the two electric telescopic rods (4).

5. The precise testing device for the compressive strength of a packaging box according to claim 1, characterized in that: Electric push rods (8) are fixedly installed on both sides of the support frame (2). The telescopic ends of the two electric push rods (8) slide into the interior of the support frame (2) and are fixedly connected to the movable frame (11). Multiple rotating rollers (10) are rotatably connected inside the two movable frames (11).

6. The precise testing device for the compressive strength of a packaging box according to claim 1, characterized in that: A control panel (7) is fixedly installed on the top of the test base plate (1).

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