A device for testing the edge compression strength of corrugated cardboard

Abstract

The present invention discloses a device for testing the edge compression strength of corrugated cardboard, which relates to the technical field of corrugated cardboard performance detection. The device comprises a base plate, wherein a comprehensive detection component is provided on the base plate; the component to be tested comprises a detection frame fixedly arranged on the top of the base plate, and a counterweight detection mechanism and a rebound detection mechanism are provided on the top of the detection frame; the counterweight detection mechanism comprises a first mounting plate arranged above the detection frame. The device can bear weight and press the edge of the corrugated paper by counterweight pressing blocks of different weights by arranging the counterweight detection mechanism, so that the edge bearing performance of the corrugated cardboard under different weights can be intuitively observed; the device can detect the rebound amount of the corrugated cardboard after the bearing pressure by arranging the rebound detection mechanism, so that the rebound data of the corrugated cardboard after the bearing pressure can be obtained, thereby obtaining the durability data of the corrugated cardboard, and has good detection effect on the variable compression strength and rebound of the corrugated cardboard, rich detection data, and can intuitively observe the detection results.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated cardboard performance detection, in particular to a device for testing the edge compression strength of a corrugated cardboard. Background Art

[0002] In the packaging industry, corrugated cardboard is widely used due to its good cushioning properties and cost-effectiveness. However, to ensure the reliability and suitability of corrugated cardboard in various application scenarios, it is crucial to accurately assess its edge crush strength.

[0003] Currently, traditional methods for testing the edge compression strength of corrugated cardboard have numerous limitations. For one thing, existing testing devices often only measure the cardboard's ability to withstand a specific pressure and fail to intuitively demonstrate its edge bearing performance under varying weights. This makes it difficult for manufacturers and users to fully understand the various load conditions that corrugated cardboard may face during actual use.

[0004] Furthermore, there is a lack of testing for corrugated cardboard's rebound performance after bearing loads. In practical applications, the cardboard's ability to quickly recover after being subjected to pressure, as well as the amount of rebound, directly impacts its durability. However, traditional testing methods struggle to accurately capture the cardboard's rebound data after bearing loads, making it difficult to provide a robust basis for assessing its durability.

[0005] Therefore, traditional testing equipment cannot meet the market demand for comprehensive evaluation of corrugated cardboard performance. At the same time, the lack of intuitiveness of the test results makes it difficult for operators to quickly and accurately understand and judge the edge crush strength and resilience of corrugated cardboard.

[0006] In summary, in order to better meet the packaging industry's strict requirements for corrugated cardboard quality and improve the accuracy and reliability of corrugated cardboard performance evaluation, there is an urgent need for a new testing device that can comprehensively test the edge compression strength and resilience of corrugated cardboard, provide rich test data, and provide intuitive and visual results. Summary of the Invention

[0007] The present invention provides a device for testing the edge compression strength of corrugated cardboard, which solves the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A device for testing the edge compression strength of a corrugated cardboard comprises a bottom plate, on which a comprehensive detection component is provided;

[0010] The comprehensive detection assembly includes a detection frame fixedly arranged on the top of the bottom plate, and a counterweight detection mechanism and a rebound detection mechanism are provided on the top of the detection frame;

[0011] The counterweight detection mechanism includes a first mounting plate arranged above the detection frame, a first mounting support plate fixedly connected between the first mounting plate and the detection frame, a plurality of first lifting rods are provided below the first mounting plate, the plurality of first lifting rods all pass through the detection frame and are slidably connected thereto, a counterweight pressure block is fixedly connected to the bottom end of each first lifting rod, and a first traction assembly for traction of the plurality of first lifting rods is provided on the first mounting plate;

[0012] The rebound detection mechanism includes a second mounting plate arranged above the detection frame, a second mounting support plate fixedly connected between the second mounting plate and the detection frame, a plurality of second lifting rods are provided below the second mounting plate, the plurality of second lifting rods all pass through the detection frame and are slidably connected thereto, and a second traction assembly for pulling the plurality of second lifting rods is provided on the second mounting plate;

[0013] A recording paper is provided between the rebound detection mechanism and the counterweight detection mechanism, and a marking pen is fixedly provided on one side of the first lifting rod and the second lifting rod close to the recording paper.

[0014] As a preferred technical solution of the present invention, a limiting frame is fixedly provided on the top of the bottom plate, a limiting channel is provided between the limiting frame and the bottom plate, and a cardboard to be tested is placed on the bottom plate and passed through the limiting channel.

[0015] As a preferred technical solution of the present invention, a limit stop is fixedly provided on the bottom plate on one side directly below the second lifting rod.

[0016] As a preferred technical solution of the present invention, the first traction assembly includes a plurality of first reels fixedly arranged on the top of the first mounting plate, the plurality of first reels corresponding to the plurality of first lifting rods respectively, each first reel is provided with a reeling wheel, a first traction rope is wound around the reeling wheel, the first traction rope passes through the first mounting plate and is fixedly connected to the first lifting rod, a first motor seat is fixedly provided on the top of the first mounting plate, a first drive motor is fixedly provided on the first motor seat, the output shaft of the first drive motor is coaxially fixedly connected to the first drive rod, the first drive rod passes through the plurality of reeling wheels and is coaxially fixedly connected thereto.

[0017] As a preferred technical solution of the present invention, the second traction assembly includes a plurality of second reels fixedly arranged on the top of the second mounting plate, the plurality of second reels corresponding to the plurality of second lifting rods respectively, each second reel is provided with a reeling wheel, a second traction rope is wound around the reeling wheel, the second traction rope passes through the second mounting plate and is fixedly connected to the second lifting rod, a second motor base is fixedly provided on the top of the second mounting plate, a second drive motor is fixedly provided on the second motor base, the output shaft of the second drive motor is coaxially fixedly connected to the second drive rod, the second drive rod passes through the plurality of reeling wheels and is coaxially fixedly connected thereto.

[0018] As a preferred technical solution of the present invention, a reel-out seat is fixedly provided at one end of the top of the detection frame, and a reel-out paper drum is rotatably provided on the reel-out seat. The recording paper is wound around the outside of the reel-out paper drum. The other end of the top of the detection frame is fixedly connected to a mounting rod, and the end of the mounting rod away from the detection frame is fixedly connected to a linkage cover. A conveying motor is fixedly provided at the top of the linkage cover, and two conveying rollers are rotatably connected to the bottom of the linkage cover. A conveying gap is provided between the two conveying rollers, and the recording paper passes through the conveying gap.

[0019] As a preferred technical solution of the present invention, the two conveying rollers extend into the linkage cover and are respectively coaxially fixedly connected with linkage gears. The two linkage gears are meshed and connected, and the output shaft of the conveying motor is coaxially fixedly connected to one of the linkage gears.

[0020] As a preferred technical solution of the present invention, the weights of the multiple counterweights are different.

[0021] The present invention has the following advantages: the present invention can bear weight and press the edge of the corrugated paper by means of counterweight blocks of different weights by arranging a counterweight detection mechanism, and can intuitively observe the edge bearing performance of the corrugated paper under different weights; the present invention can detect the rebound amount of the corrugated paper after bearing weight and pressing by arranging a rebound detection mechanism, and can obtain the rebound data of the corrugated paper after bearing weight and pressing, thereby obtaining the durability data of the corrugated paper board; the present invention has a good effect on the detection of the variable pressure strength and rebound of the corrugated paper board, has rich detection data, and can intuitively observe the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front three-dimensional structure of the corrugated cardboard edge compression strength testing device.

[0023] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the corrugated cardboard edge compression strength testing device.

[0024] Figure 3 This is a structural diagram of the counterweight detection mechanism in the corrugated cardboard edge compression strength testing device.

[0025] Figure 4 This is a structural diagram of the rebound detection mechanism in the corrugated cardboard edge compression strength testing device.

[0026] Figure 5 This is a schematic diagram of the structure of the marking pen in the corrugated cardboard edge compression strength testing device.

[0027] In the figure: 1. Base plate; 2. Limiting frame; 3. Cardboard to be tested; 4. Detection frame; 5. Comprehensive detection assembly; 6. First mounting plate; 7. First mounting support plate; 8. First winder; 9. First driving rod; 10. First motor seat; 11. First driving motor; 12. Second mounting plate; 13. Second mounting support plate; 14. Second winder; 15. Second driving rod; 16. Second motor seat; 17. Second driving motor; 18. First traction rope; 19. First lifting rod; 20. Counterweight block; 21. Unwinding seat; 22. Recording paper; 23. Second traction rope; 24. Second lifting rod; 25. Mounting rod; 26. Linkage cover; 27. Conveying motor; 28. Conveying roller; 29. ​​Marking pen. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] See also Figure 1-5 , a corrugated cardboard edge compression strength testing device, comprising a bottom plate 1, on which a comprehensive detection component 5 is provided;

[0031] The comprehensive detection assembly 5 includes a detection frame 4 fixedly arranged on the top of the base plate 1, and a counterweight detection mechanism and a rebound detection mechanism are provided on the top of the detection frame 4;

[0032] The counterweight detection mechanism includes a first mounting plate 6 arranged above the detection frame 4, a first mounting support plate 7 is fixedly connected between the first mounting plate 6 and the detection frame 4, a plurality of first lifting rods 19 are provided below the first mounting plate 6, the plurality of first lifting rods 19 all pass through the detection frame 4 and are slidably connected thereto, a counterweight pressing block 20 is fixedly connected to the bottom end of each first lifting rod 19, and a first traction assembly for traction of the plurality of first lifting rods 19 is provided on the first mounting plate 6;

[0033] The rebound detection mechanism includes a second mounting plate 12 arranged above the detection frame 4, a second mounting support plate 13 is fixedly connected between the second mounting plate 12 and the detection frame 4, a plurality of second lifting rods 24 are provided below the second mounting plate 12, and the plurality of second lifting rods 24 all pass through the detection frame 4 and are slidably connected thereto, and a second traction assembly for traction of the plurality of second lifting rods 24 is provided on the second mounting plate 12;

[0034] A recording paper 22 is provided between the rebound detection mechanism and the counterweight detection mechanism, and a marking pen 29 is fixedly provided on one side of the first lifting rod 19 and the second lifting rod 24 close to the recording paper 22 .

[0035] A limiting frame 2 is fixedly provided on the top of the bottom plate 1 , and a limiting channel is provided between the limiting frame 2 and the bottom plate 1 . A cardboard 3 to be tested is placed on the bottom plate 1 and passes through the limiting channel.

[0036] A limit stop is fixedly provided on the bottom plate 1 on one side directly below the second lifting rod 24 .

[0037] The first traction assembly includes a plurality of first reels 8 fixedly arranged on the top of the first mounting plate 6, and the plurality of first reels 8 correspond to the plurality of first lifting rods 19 respectively. Each first reel 8 is provided with a reeling wheel, and a first traction rope 18 is wound around the reeling wheel. The first traction rope 18 passes through the first mounting plate 6 and is fixedly connected to the first lifting rod 19. A first motor seat 10 is fixedly provided on the top of the first mounting plate 6, and a first drive motor 11 is fixedly provided on the first motor seat 10. The output shaft of the first drive motor 11 is coaxially fixedly connected to the first drive rod 9. The first drive rod 9 passes through the plurality of reeling wheels and is coaxially fixedly connected thereto.

[0038] The second traction assembly includes a plurality of second reels 14 fixedly arranged on the top of the second mounting plate 12, and the plurality of second reels 14 correspond to the plurality of second lifting rods 24 respectively. Each second reel 14 is provided with a reeling wheel, and a second traction rope 23 is wound around the reeling wheel. The second traction rope 23 passes through the second mounting plate 12 and is fixedly connected to the second lifting rod 24. A second motor base 16 is fixedly provided on the top of the second mounting plate 12, and a second drive motor 17 is fixedly provided on the second motor base 16. The output shaft of the second drive motor 17 is coaxially fixedly connected to the second drive rod 15. The second drive rod 15 passes through the plurality of reeling wheels and is coaxially fixedly connected thereto.

[0039] A reel-out seat 21 is fixedly provided at one end of the top of the detection frame 4, and a reel-out paper drum is rotatably provided on the reel-out seat 21. The recording paper 22 is wound around the outside of the reel-out paper drum. A mounting rod 25 is fixedly connected to the other end of the top of the detection frame 4. The end of the mounting rod 25 away from the detection frame 4 is fixedly connected to a linkage cover 26. A conveying motor 27 is fixedly provided at the top of the linkage cover 26. Two conveying rollers 28 are rotatably connected to the bottom of the linkage cover 26. A conveying gap is provided between the two conveying rollers 28, and the recording paper 22 passes through the conveying gap.

[0040] The two conveying rollers 28 extend into the linkage cover 26 and are coaxially fixedly connected with linkage gears respectively. The two linkage gears are meshed and connected. The output shaft of the conveying motor 27 is coaxially fixedly connected with one of the linkage gears.

[0041] The weights of the multiple counterweights are all different.

[0042] During the implementation of the present invention, the paperboard 3 to be tested is first passed through the limiting channel below the limiting frame 2, so that the edge of the paperboard 3 to be tested is located directly below the counterweight pressure block 20, and then the first driving motor 11 is controlled to start, and the first driving motor 11 drives the first driving rod 9 to rotate, so that the multiple first reels 8 work, and then the multiple first traction ropes 18 are released synchronously. Under the action of gravity, the first lifting rod 19 drives the counterweight pressure block 20 to move downward until the counterweight pressure block 20 contacts the edge of the paperboard 3 to be tested, and the counterweight pressure block 20 presses the edge of the paperboard 3 to be tested. Under the pressure of the counterweight pressure blocks 20 with different gravities, different pressure marks appear at different pressed positions of the paperboard 3 to be tested. Then, the first driving motor 11 is controlled to start in the reverse direction, so that the first reel 8 reels the first traction rope 18, and then the first lifting rod 19 and the counterweight pressure block 20 are pulled upward to the initial position. During the rising and falling process of the first lifting rod 19, the marking pen 29 follows the movement of the first lifting rod 19 to draw vertical lines on the recording paper 22;

[0043] Then, the cardboard 3 to be tested is pushed forward until one of the compressed edges of the cardboard 3 to be tested touches the limit stop. Then, the second drive motor 17 is controlled to start, driving the multiple second reels 14 to work, releasing the second traction rope 23, and moving the second lifting rod 24 downward until the bottom of the second lifting rod 24 contacts the edge of the cardboard 3 to be tested. At this time, due to the different pressures applied to different areas of the cardboard 3 to be tested, the rebound states presented are also different, causing the multiple second lifting rods 24 to present different heights. Then, the second drive motor 17 is controlled to start in the reverse direction to drive the second reel 14 to work, rewinding the second traction rope 23, and returning the multiple second lifting rods 24 to their initial positions. During this process, the marking pen 29 connected to the second lifting rod 24 draws another vertical line on the recording paper 22. The lengths of the vertical lines at the same position on both sides of the recorded value are compared. The difference in length of the two vertical lines can reflect the resilience of the cardboard 3 to be tested under different pressures.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for testing the edge compression strength of corrugated cardboard, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a comprehensive detection component (5); The comprehensive detection assembly (5) includes a detection frame (4) fixedly arranged on the top of the base plate (1), and a counterweight detection mechanism and a rebound detection mechanism are provided on the top of the detection frame (4); The counterweight detection mechanism includes a first mounting plate (6) arranged above the detection frame (4), a first mounting support plate (7) fixedly connected between the first mounting plate (6) and the detection frame (4), a plurality of first lifting rods (19) are provided below the first mounting plate (6), the plurality of first lifting rods (19) all pass through the detection frame (4) and are slidably connected thereto, a counterweight pressing block (20) is fixedly connected to the bottom end of each first lifting rod (19), and a first traction assembly for traction of the plurality of first lifting rods (19) is provided on the first mounting plate (6); The rebound detection mechanism includes a second mounting plate (12) arranged above the detection frame (4), a second mounting support plate (13) fixedly connected between the second mounting plate (12) and the detection frame (4), a plurality of second lifting rods (24) are provided below the second mounting plate (12), the plurality of second lifting rods (24) all pass through the detection frame (4) and are slidably connected thereto, and a second traction assembly for traction of the plurality of second lifting rods (24) is provided on the second mounting plate (12); A recording paper (22) is provided between the rebound detection mechanism and the counterweight detection mechanism, and a marking pen (29) is fixedly provided on one side of the first lifting rod (19) and the second lifting rod (24) close to the recording paper (22); A limiting frame (2) is fixedly provided on the top of the bottom plate (1), a limiting channel is provided between the limiting frame (2) and the bottom plate (1), a cardboard to be tested (3) is placed on the bottom plate (1), and the cardboard to be tested (3) is placed through the limiting channel; The first traction assembly includes a plurality of first reels (8) fixedly arranged on the top of the first mounting plate (6), the plurality of first reels (8) corresponding to the plurality of first lifting rods (19), each of the first reels (8) is provided with a reel, a first traction rope (18) is wound around the reel, the first traction rope (18) passes through the first mounting plate (6) and is fixedly connected to the first lifting rod (19), a first motor seat (10) is fixedly provided on the top of the first mounting plate (6), a first drive motor (11) is fixedly provided on the first motor seat (10), an output shaft of the first drive motor (11) is coaxially fixedly connected to the first drive rod (9), and the first drive rod (9) passes through the plurality of reels and is coaxially fixedly connected thereto; The second traction assembly has the same structure as the first traction assembly.

2. The corrugated cardboard edge compression strength testing device according to claim 1, characterized in that: A limit stop is fixedly provided on the bottom plate (1) located on one side directly below the second lifting rod (24).

3. The corrugated cardboard edge compression strength testing device according to claim 1, characterized in that: The second traction assembly includes a plurality of second reels (14) fixedly arranged on the top of the second mounting plate (12), the plurality of second reels (14) corresponding to the plurality of second lifting rods (24), each second reel (14) is provided with a reeling wheel, a second traction rope (23) is wound around the reeling wheel, the second traction rope (23) passes through the second mounting plate (12) and is fixedly connected to the second lifting rod (24), a second motor base (16) is fixedly provided on the top of the second mounting plate (12), a second drive motor (17) is fixedly provided on the second motor base (16), an output shaft of the second drive motor (17) is coaxially fixedly connected to the second drive rod (15), and the second drive rod (15) passes through the plurality of reeling wheels and is coaxially fixedly connected thereto.

4. The corrugated cardboard edge compression strength testing device according to claim 1, characterized in that: A reeling seat (21) is fixedly provided at one end of the top of the detection frame (4), a reeling paper drum is rotatably provided on the reeling seat (21), and recording paper (22) is wound around the outside of the reeling paper drum. A mounting rod (25) is fixedly connected to the other end of the top of the detection frame (4), and an end of the mounting rod (25) away from the detection frame (4) is fixedly connected to a linkage cover (26). A conveying motor (27) is fixedly provided at the top of the linkage cover (26), and two conveying rollers (28) are rotatably connected to the bottom of the linkage cover (26). A conveying gap is provided between the two conveying rollers (28), and the recording paper (22) passes through the conveying gap.

5. The device for testing the edge compression strength of corrugated cardboard according to claim 4, characterized in that: The two conveying rollers (28) extend into the linkage cover (26) and are coaxially fixedly connected to linkage gears. The two linkage gears are meshed and connected. The output shaft of the conveying motor (27) is coaxially fixedly connected to one of the linkage gears.

6. The device for testing the edge compression strength of corrugated cardboard according to claim 1, characterized in that: The weights of the multiple counterweights are all different.

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