Device for testing compressive property of box wall of packing box

Abstract

The invention relates to the technical field of packaging carton performance testing, and particularly discloses a packaging carton wall compression resistance testing device which comprises a testing table, fixing plates are installed at the two ends of the testing table, moving frames are arranged at the tops of the two fixing plates, a testing mechanism is arranged between the two moving frames, and four moving columns are arranged above the testing table. And moving plates are arranged on the outer walls of one sides of the four moving columns correspondingly, moving frames are connected to the outer walls of one sides of the four moving plates through telescopic mechanisms correspondingly, and correcting mechanisms are arranged in the four moving frames correspondingly. According to the carton correcting device, after a carton is placed at the top of the test board, the four correcting mechanisms arranged at the top of the test board are matched in pairs, the four side faces of the carton can be pushed and corrected, the carton is placed in the middle of the top of the test board, and it is ensured that a follow-up pressing plate can accurately conduct pressing test on the carton; the accuracy of the compression resistance test of the carton is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging carton performance testing, and in particular to a packaging carton wall compression performance testing device. Background Art

[0002] As an indispensable part of modern logistics, warehousing and transportation, the quality and performance of packaging cartons are directly related to the safety and integrity of products. During the logistics process, cartons may be squeezed and impacted by various external forces, such as stacking weight, collision during handling, etc. Compression testing can evaluate the degree of deformation and risk of damage of cartons when subjected to these pressures, thereby ensuring the safety of products during transportation. Through compression testing, we can understand the performance of cartons under different pressures and then optimize the design of cartons. For example, the material, thickness, structure and other parameters of the carton can be adjusted to improve its compression resistance while reducing production costs.

[0003] In the prior art, in the process of testing the compression resistance of packaging cartons, relevant testing devices are usually used to test the packaging cartons. During the use of the testing device, the packaging carton needs to be manually placed on the top of the test bench and the packaging carton is squeezed with the help of a movable pressing plate. Since the top of the test bench is not provided with a relevant mechanism for correcting the position of the packaging carton, the position of the packaging carton after being placed on the top of the test bench is not so accurate, and there may even be deviations. As a result, in the subsequent process in which the pressing plate applies pressure to the packaging carton, the pressures exerted on various parts of the packaging carton are not the same, thereby affecting the accuracy of the compression resistance test of the packaging carton, causing the existing testing devices to be unable to meet people's usage needs. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to provide a device for testing the compressive performance of the wall of a packaging box.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A device for testing the compressive resistance of packaging box walls comprises a test bench, fixed plates are installed at both ends of the test bench, movable frames are arranged on the tops of the two fixed plates, a testing mechanism for performing a compressive resistance test on the carton is arranged between the two movable frames, four movable columns are arranged above the test bench, movable plates are arranged on the outer walls on the sides close to the four movable columns, movable frames are connected to the outer walls on the sides away from the movable columns via telescopic mechanisms, and correction mechanisms for correcting the position of the carton are arranged inside the four movable frames.

[0006] Optionally, first chutes are formed at the tops of the two fixing plates, first sliders are installed inside the two first chutes, and the tops of the two first sliders are connected to the moving frames close to them.

[0007] Optionally, the testing mechanism includes two first grooves formed in the outer walls of the two moving frames close to each other. Lead screws are rotatably installed inside the multiple first grooves, connecting rods are threadedly installed on the outer walls of the multiple lead screws, and the ends of the multiple connecting rods away from the lead screws are jointly installed with a pressing plate.

[0008] Optionally, two fixing seats and two rotating seats are respectively installed on the top of the testing table, and the tops of the two fixing seats and the two rotating seats are connected to the moving columns close to them through two telescopic cylinders.

[0009] Optionally, second chutes are formed in the outer walls of the four moving columns close to each other, second sliders are installed inside the four second chutes, and the ends of the four second sliders away from the second chutes are connected to the moving plates close to them.

[0010] Optionally, the telescopic mechanism includes a second groove formed inside the moving plate. A first double-headed screw is rotatably installed inside the second groove, and two first moving seats are threadedly installed on the outer wall of the first double-headed screw.

[0011] Optionally, rotating rods are rotatably installed at the ends of the two first moving seats away from the first double-headed screw, and the ends of the two rotating rods away from the first moving seats are hinged to the moving frames close to them.

[0012] Optionally, the correction mechanism includes four rotating plates, the four rotating plates are respectively rotatably installed inside the corresponding moving frames, storage grooves are formed inside the four rotating plates, and two cooperating clamping plates are arranged inside the four storage grooves.

[0013] Optionally, third grooves are formed in one inner wall of the four storage grooves, second double-headed screws are rotatably installed inside the four third grooves, and two second moving seats are threadedly installed on the outer walls of the four second double-headed screws.

[0014] Optionally, electric telescopic rods are installed at the ends of the two second moving seats away from the second double-headed screw, the telescopic ends of the two electric telescopic rods are connected to the clamping plates close to them, and sharp parts are arranged at the tops of the two clamping plates.

[0015] The beneficial effects of the present invention are: 1. In this invention, after placing the cardboard box on the top of the test bench, through the cooperation of two pairs of four correction mechanisms arranged on the top of the test bench, the four sides of the cardboard box can be respectively pushed and corrected, so that the cardboard box is placed in the center position on the top of the test bench, ensuring that the subsequent pressing plate can accurately press and test it, improving the accuracy of the compressive performance test of the cardboard box, and enabling the device to meet the usage requirements of people.

[0016] 2. In this invention, since four rotating plates and other components are respectively arranged on the four sides of the cardboard box, the corresponding telescopic mechanism can also be used to drive the moving frame and the rotating plate to apply pressure to the side wall of the cardboard box, avoiding the situation that only using the pressing plate to apply pressure to the cardboard box from top to bottom cannot accurately obtain the compressive performance data of the cardboard box wall. Therefore, the credibility and accuracy of the test data of the compressive performance of the cardboard box wall can be improved, which is beneficial for people to use.

[0017] 3. In this invention, if it is necessary to test the compressive performance of the cardboard box after stacking, with the mutual cooperation of two rotating seats and two moving columns and other components, two cardboard boxes can be automatically stacked on the top of the test bench, and the moving frames and rotating plates located on the four sides of the cardboard box can be moved towards the cardboard box to push and correct the positions of the two stacked cardboard boxes, ensuring that the two cardboard boxes are stacked neatly. Finally, by controlling the pressing plate to move downward to press and test the two cardboard boxes, record the deformation and damage conditions of the cardboard boxes under the stacking pressure, so as to provide the compressive performance data of the cardboard boxes under actual storage conditions.

[0018] 4. In this invention, after the cardboard box is placed on the top of the test bench, control one or more rotating plates to rotate and extend inside the corresponding moving frame, and control the two electric telescopic rods inside one or more rotating plates to drive the sharp parts of the clamping plates to pierce the outer wall of the cardboard box, simulating the situation that holes are processed on the outer wall of the cardboard box. Then, press the cardboard box with the pressing plate, and the difference in compressive performance between the cardboard box with holes processed on the outer wall and the normal cardboard box can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 FIG. is the overall structural schematic diagram of a device for testing the compressive performance of the wall of a packing box proposed by the present invention; Figure 2 FIG. is the structural schematic diagram of two moving frames and a test mechanism; Figure 3 FIG. is the structural schematic diagram of four lead screws and a pressing plate in the present invention; Figure 4 FIG. is the structural schematic diagram of one of the moving columns and a rotating seat in the present invention; Figure 5It is a schematic structural diagram of the telescopic mechanism in the present invention; Figure 6 It is a schematic structural diagram of one of the moving frames and the rotating plate in the present invention; Figure 7 It is a structural sectional view of one of the rotating plates in the present invention; Figure 8 It is a schematic structural diagram of two clamping plates and the second double-headed screw in the present invention; Figure 9 It is a schematic structural diagram after two rotating seats drive two of the moving columns to rotate downward in the present invention; Figure 10 It is a schematic structural diagram after two first sliders drive two moving frames and the pressing plate to move in the present invention.

[0021] In the figure: 1, test bench; 2, fixed plate; 3, moving frame; 4, pressing plate; 5, moving column; 6, rotating plate; 7, first chute; 8, first slider; 9, first groove; 10, connecting rod; 11, lead screw; 12, fixed seat; 13, rotating seat; 14, telescopic cylinder; 15, second chute; 16, moving plate; 17, second slider; 18, first double-headed screw; 19, first moving seat; 20, rotating rod; 21, moving frame; 22, receiving groove; 23, clamping plate; 24, third groove; 25, second double-headed screw; 26, second moving seat; 27, electric telescopic rod; 28, sharp part. Detailed implementation manners

[0022] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] Refer to Figures 1 - 10 , a device for testing the compressive performance of the wall of a packing box, including a test bench 1, fixed plates 2 are installed at both ends of the test bench 1, moving frames 3 are arranged on the tops of the two fixed plates 2, and a test mechanism for performing a compressive test on a cardboard box is arranged between the two moving frames 3. Four moving columns 5 are arranged above the test bench 1. Moving plates 16 are arranged on the outer walls of the four moving columns 5 close to each other. The outer walls of the four moving plates 16 away from the moving columns 5 are connected to moving frames 21 through a telescopic mechanism provided, and correction mechanisms for correcting the position of the cardboard box are arranged inside the four moving frames 21.

[0024] As a technical optimization solution of the present invention, first sliding grooves 7 are formed at the tops of the two fixing plates 2. First sliding blocks 8 are installed inside the two first sliding grooves 7. The tops of the two first sliding blocks 8 are respectively connected to the adjacent moving frames 3. First linear motors are preset inside the two first sliding grooves 7. The two first linear motors can drive the two first sliding blocks 8 to move back and forth inside the corresponding first sliding grooves 7, thereby driving the two moving frames 3 to move back and forth on the tops of the fixing plates 2.

[0025] As a technical optimization solution of the present invention, the testing mechanism includes two first grooves 9 formed on the outer walls of the adjacent sides of the two moving frames 3. Lead screws 11 are rotatably installed inside the multiple first grooves 9. Connecting rods 10 are threadedly installed on the outer walls of the multiple lead screws 11. The ends of the multiple connecting rods 10 away from the lead screws 11 are jointly installed with a pressing plate 4. Two first driving motors are preset on the tops of the two moving frames 3. The output ends of the two first driving motors are respectively connected to the tops of the adjacent lead screws 11, so as to drive the lead screws 11 to rotate and adjust inside the corresponding first grooves 9, thereby driving the corresponding connecting rods 10 and the pressing plate 4 to move up and down on the outer walls of the lead screws 11.

[0026] As a technical optimization solution of the present invention, two fixed seats 12 and two rotating seats 13 are respectively installed on the top of the testing table 1. The tops of the two fixed seats 12 and the two rotating seats 13 are respectively connected to the adjacent moving columns 5 through two telescopic cylinders 14. Two second driving motors are preset on the top of the testing table 1. The output ends of the two second driving motors are respectively connected to the rotating parts at one ends of the two rotating seats 13, so as to drive the two rotating seats 13 to rotate and adjust on the top of the testing table 1, thereby driving two of the moving columns 5 to rotate and adjust synchronously on the top of the testing table 1.

[0027] As a technical optimization solution of the present invention, second sliding grooves 15 are formed on the outer walls of the adjacent sides of the four moving columns 5. Second sliding blocks 17 are installed inside the four second sliding grooves 15. The ends of the four second sliding blocks 17 away from the second sliding grooves 15 are respectively connected to the adjacent moving plates 16. Second linear motors are preset inside the four second sliding grooves 15. The four second linear motors can drive the four second sliding blocks 17 to move back and forth inside the corresponding second sliding grooves 15, thereby driving the four moving plates 16 to move and adjust on the outer walls of the corresponding moving columns 5.

[0028] As a technical optimization solution of the present invention, the telescopic mechanism includes a second groove opened inside the moving plate 16. A first double-headed screw 18 is rotatably installed inside the second groove, and two first moving seats 19 are threadedly installed on the outer wall of the first double-headed screw 18. On the outer wall of one side of the four moving plates 16, third driving motors are preset. The output end of the third driving motor is connected to one end of the first double-headed screw 18 close to it, so as to drive the first double-headed screw 18 to rotate inside the second groove, and then drive the two first moving seats 19 to move and adjust in the approaching or separating direction.

[0029] As a technical optimization solution of the present invention, rotating rods 20 are rotatably installed at one ends of the two first moving seats 19 away from the first double-headed screw 18. One ends of the two rotating rods 20 away from the first moving seats 19 are hinged to the moving frames 21 close to them. When the two first moving seats 19 move in the approaching direction, the two rotating rods 20 can be driven to rotate in the approaching direction, and then the moving frames 21 are pushed to move away from the first moving seats 19; when the two first moving seats 19 move in the separating direction, the two rotating rods 20 can be driven to rotate in the separating direction, and then the moving frames 21 are pulled to move close to the first moving seats 19.

[0030] As a technical optimization solution of the present invention, the correction mechanism includes four rotating plates 6, and the four rotating plates 6 are respectively rotatably installed inside the corresponding moving frames 21. Storage grooves 22 are opened inside the four rotating plates 6, and two cooperating clamping plates 23 are arranged inside the four storage grooves 22. On the outer wall of one side of the four moving frames 21, fourth driving motors are preset. The output end of the fourth driving motor is connected to the rotating part of one end of the rotating plate 6 close to it, so as to drive the rotating plate 6 to rotate and adjust inside the moving frame 21.

[0031] As a technical optimization solution of the present invention, third grooves 24 are opened on the inner wall of one side of the four storage grooves 22. Second double-headed screws 25 are rotatably installed inside the four third grooves 24, and two second moving seats 26 are threadedly installed on the outer walls of the four second double-headed screws 25. First driving devices are preset inside the four storage grooves 22. The output end of the first driving device is connected to one end of the second double-headed screw 25 close to it, so as to drive the second double-headed screw 25 to rotate inside the third groove 24, and then drive the two second moving seats 26 to move and adjust in the approaching or separating direction.

[0032] As a technical optimization solution of the present invention, electric telescopic rods 27 are installed at one ends of two second moving seats 26 away from the second double-headed screw rod 25. The telescopic ends of the two electric telescopic rods 27 are connected to the clamping plates 23 close to them. Sharp parts 28 are provided at the tops of the two clamping plates 23. During the telescopic process of the telescopic ends of the electric telescopic rods 27, the corresponding clamping plates 23 can be driven to perform telescopic adjustment together; while the second double-headed screw rod 25 drives the two second moving seats 26 to move and adjust, the two electric telescopic rods 27 and the clamping plates 23 can be synchronously driven to move and adjust in the direction of approaching or separating from each other.

[0033] In the present invention, when the user uses the device, the cardboard box to be tested needs to be placed on the top of the test bench 1 first. As Figures 4 - 9 shown, one of the rotating seats 13 can be controlled to drive a plurality of components such as the corresponding moving column 5 to rotate downward to a horizontal state, then the rotating plate 6 can be controlled to rotate upward to a vertical state inside the corresponding moving frame 21, and the telescopic ends of the electric telescopic rods 27 provided on the two second moving seats 26 can be controlled to extend together, pushing the two clamping plates 23 to extend upward from the inside of the corresponding storage grooves 22. Subsequently, the staff can place the cardboard box to be tested on the top of the vertically placed rotating plate 6 and between the two clamping plates 23. As the second double-headed screw rod 25 rotates, the two second moving seats 26 and the clamping plates 23 are driven to move and adjust in the direction of approaching each other, so that the two clamping plates 23 can clamp and fix the two sides of the cardboard box. As the second slider 17 moves in the corresponding second chute 15 in the direction of approaching the test bench 1, the moving plate 16 and the rotating plate 6 and other components are driven to move and adjust together. Until the cardboard box is driven to a suitable position, one of the rotating seats 13 is controlled to drive the corresponding moving column 5 to rotate upward and reset to a vertical state, so that the cardboard box clamped and fixed by the two clamping plates 23 falls on the top of the test bench 1 for placement, and the effect of automatically loading the cardboard box to be tested can be achieved.

[0034] After the cardboard box falls on the top of the test bench 1, in order to ensure that the cardboard box is located at the center position on the top of the test bench 1, so as to facilitate the subsequent pressing test by the pressing plate 4. As Figure 1As shown, control the rotating plate 6 to rotate and reset after rotation adjustment, so that the four moving columns 5 are respectively located on the four sides of the carton. Then control the four second sliders 17 to move downward together inside the corresponding second sliding grooves 15, driving the corresponding moving plates 16, rotating plate 6 and other components to move downward together until they are close to the carton. First, control two parallel first double-headed screws 18 to rotate, driving the corresponding two first moving seats 19 to move towards each other. With the rotation adjustment of the two rotating rods 20, push the two moving frames 21 and the rotating plate 6 in the parallel position to move towards each other, so that the two moving frames 21 and the rotating plate 6 can first push two sides of the carton. Then control the other two parallel first double-headed screws 18 to rotate, driving the other two moving frames 21 and the rotating plate 6 to push the other two sides of the carton, so that the position of the carton is corrected. At this time, the carton is placed in the center of the top of the test bench 1 to ensure that the subsequent pressing plate 4 can accurately press and test it.

[0035] After determining that the position of the carton on the top of the test bench 1 is accurate, the four lead screws 11 can be controlled to rotate synchronously, driving the four connecting rods 10 and the pressing plate 4 to move downward slowly together, so that the pressing plate 4 can apply pressure to the carton according to the predetermined pressure application speed and range until the carton is damaged. Record the deformation of the carton under different pressures and determine whether its compressive strength is qualified through analysis.

[0036] At the same time, since the rotating plate 6 and other components are respectively arranged on the four sides of the carton, the corresponding telescopic mechanism can also be used to drive the moving frame 21 and the rotating plate 6 to apply pressure to the side wall of the carton, avoiding the situation that when only using the pressing plate 4 to apply pressure to the carton from top to bottom, the compressive performance data of the carton wall cannot be accurately obtained. Thus, the credibility and accuracy of the test data of the compressive performance of the carton wall can be improved, which is beneficial for people to use.

[0037] If it is necessary to test the compressive performance of the carton after stacking, the above steps of automatically loading the carton can be repeated at this time, such as Figure 9As shown, control both rotating seats 13 to rotate downward to a horizontal state, and control both rotating plates 6 to rotate upward inside the corresponding moving frames 21 to a vertical state. At this time, two cartons can be placed on the tops of the two rotating plates 6 respectively, and clamped and fixed by the corresponding two clamping plates 23. After the cartons are placed on the top of the test bench 1 in cooperation with components such as one of the moving plates 16 and the rotating seat 13, the telescopic mechanism on the top of the other moving plate 16 can be controlled to drive the moving frame 21 and the rotating plate 6 to move upward for adjustment, thereby driving the height of the other carton above the moving column 5 to increase. Until the other carton is driven upward to the specified height, then control the other rotating seat 13 to drive components such as the other moving column 5 to rotate upward and reset to a vertical state, and then drive the other carton to be placed above one of the cartons on the top of the test bench 1, so that they are stacked on the top of the test bench 1. Subsequently, the moving frames 21 and the rotating plates 6 on the four sides of the carton are moved towards the carton to push and correct the position of the two stacked cartons to ensure that the two cartons are stacked neatly. Finally, control the pressing plate 4 to move downward to press and test the two cartons, and record the deformation and damage of the cartons under the stacking pressure to provide the compressive performance data of the cartons under actual storage conditions.

[0038] At the same time, after the other carton is stacked on the top of one of the cartons, the telescopic mechanism of one of them can also be controlled to drive the moving frame 21 and the rotating plate 6 to push the other carton, so that there is a deviation in the stacking of the two cartons. During the subsequent pressing test of the cartons by the pressing plate 4, it can provide how much impact the stacking misalignment has on the compressive performance of the cartons during actual storage, thereby further improving the accuracy of the relevant data on the compressive performance of the cartons during stacking.

[0039] If it is necessary to conduct a drop test on the carton to evaluate the impact of the possible drop impact on its compressive performance during transportation, such as Figure 10As shown, it is possible to control the two first sliders 8 to drive components such as the two moving frames 3 and the pressing plate 4 to move away from the test bench 1 inside the corresponding first sliding grooves 7. After automatically placing the cardboard box on the top of the test bench 1 by means of the rotation of one of the rotating seats 13 and the mutual cooperation between the corresponding moving columns 5 and other components, it is possible to control the downward movement adjustment of two moving plates 16 in a parallel position, so that the two moving frames 21 and the rotating plate 6 are respectively located on both sides of the cardboard box. Then, it is possible to control the telescopic mechanism to drive the two moving frames 21 and the rotating plate 6 to move and adjust towards the approaching direction, and then clamp and fix both sides of the cardboard box. As the two moving plates 16 move upward together, they will drive the two moving frames 21, the rotating plate 6, and the clamped cardboard box to move upward and adjust on the top of the test bench 1. And according to the required height, it is possible to further control the telescopic ends of multiple telescopic cylinders 14 to extend upward, drive the cardboard box to move to a higher position, and then control the two telescopic mechanisms to drive the two moving frames 21 and the rotating plate 6 to move in the separating direction, so that the cardboard box falls downward onto the top of the test bench 1 after losing the restraint, and record the deformation and damage conditions of the cardboard box during the falling process, then the effect of automatically performing a drop test on the cardboard box can be achieved.

[0040] It is also possible to control one of the rotating seats 13 to drive components such as the corresponding moving column 5 to rotate to an inclined state during the drop test of the cardboard box, and control the corresponding rotating plate 6 to rotate and extend inside the moving frame 21. After the staff places the cardboard box on the top of the rotating and extending rotating plate 6, according to the need, it is possible to control the telescopic ends of the two telescopic cylinders 14 to extend or remain unchanged. By controlling the rotating plate 6 to rotate downward inside the moving frame 21, the cardboard box will slide downward along the inclined surface on the top of the moving column 5 and collide with the top of the test bench 1, simulating the use state of the cardboard box sliding downward from an inclined sliding table during use, and further improving the accuracy and comprehensiveness of the drop test of the cardboard box.

[0041] During the production and processing of cardboard boxes, some cardboard boxes will have holes processed on their surfaces or handle holes punched on the box sides. In order to simulate the situation of how much the compressive performance of the cardboard box is affected after holes are processed on its surface, after the cardboard box is placed on the top of the test bench 1, control one or more rotating plates 6 to rotate and extend inside the corresponding moving frames 21, and control the telescopic ends of the two electric telescopic rods 27 inside one or more rotating plates 6 to extend, so that the clamping plates 23 extend out of the corresponding storage grooves 22. And as the telescopic ends of the electric telescopic rods 27 continue to extend, it is possible to drive the sharp parts 28 of the clamping plates 23 to pierce the outer wall of the cardboard box, simulating the situation where holes are processed on the outer wall of the cardboard box. Then, by pressing the cardboard box with the pressing plate 4, the difference in compressive performance between the cardboard box with holes processed on its outer wall and the normal cardboard box can be obtained.

[0042] After the cardboard box is tested, if the deformation of the cardboard box is small, one of the rotating plates 6 can be rotated downward and extended inside the corresponding moving frame 21, and the telescopic ends of the two electric telescopic rods 27 are extended to drive the two clamping plates 23 to extend out of the storage groove 22 and be located on both sides of the cardboard box. By rotating the second double-headed screw rod 25, the two clamping plates 23 are driven to clamp and fix the cardboard box. Then, the corresponding rotating seat 13 is controlled to rotate downward away from the test bench 1 to a horizontal state, and the cardboard box clamped by the two clamping plates 23 is driven to move out from the top of the test bench 1, facilitating the blanking of the cardboard box after the test and avoiding the dangerous problem of manually taking and blanking the cardboard box below the pressing plate 4; If the deformation of the cardboard box is large, after the two clamping plates 23 extend out of the storage groove 22, the rotation of the second double-headed screw rod 25 is controlled to drive the two clamping plates 23 to move towards each other. Subsequently, the telescopic ends of the two electric telescopic rods 27 are continuously controlled to extend, so that the sharp parts 28 of the two clamping plates 23 are inserted into the inside of the cardboard box in sequence to fix the cardboard box by insertion. Then, the corresponding rotating seat 13 is controlled to rotate downward away from the test bench 1 to a horizontal state, and the cardboard box fixed by the two clamping plates 23 by insertion is driven to move out from the top of the test bench 1, facilitating the blanking of the cardboard box with large deformation after the test and improving the applicability of components such as the clamping plates 23.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A packaging box wall compression resistance testing device, comprising a test bench (1), characterized in that: Fixed plates (2) are installed at both ends of the test bench (1), and movable frames (3) are arranged on the tops of the two fixed plates (2). A testing mechanism for performing a compression test on a carton is arranged between the two movable frames (3). Four movable columns (5) are arranged above the test bench (1), and movable plates (16) are arranged on the outer walls of the four movable columns (5) on the sides close to each other. The outer walls of the four movable plates (16) on the sides away from the movable columns (5) are connected to movable frames (21) via telescopic mechanisms, and correction mechanisms for correcting the position of the carton are arranged inside the four movable frames (21).

2. A packaging box wall compression performance testing device according to claim 1, characterized in that: A first slide groove (7) is provided on the top of each of the two fixed plates (2), a first slide block (8) is installed inside each of the two first slide grooves (7), and the top ends of the two first slide blocks (8) are connected to the adjacent movable frame (3).

3. A packaging box wall compression performance testing device according to claim 1, characterized in that: The testing mechanism comprises two first grooves (9) formed on the outer walls of two moving frames (3) close to each other, a plurality of first grooves (9) having screw rods (11) rotatably mounted inside, a plurality of connecting rods (10) having connecting rods (10) threadedly mounted on the outer walls of the plurality of connecting rods (11), and a pressure plate (4) being commonly mounted on one end of the plurality of connecting rods (10) away from the screw rods (11).

4. A packaging box wall compression performance testing device according to claim 1, characterized in that: Two fixed seats (12) and two rotating seats (13) are respectively installed on the top of the test bench (1), and the top ends of the two fixed seats (12) and the two rotating seats (13) are connected to the movable columns (5) adjacent thereto via two telescopic cylinders (14).

5. A packaging box wall compression performance testing device according to claim 1, characterized in that: The outer walls of the four movable columns (5) on the adjacent sides are each provided with a second slide groove (15), the interiors of the four second slide grooves (15) are each provided with a second slider (17), and the ends of the four second sliders (17) away from the second slide grooves (15) are each connected to a movable plate (16) adjacent thereto.

6. A packaging box wall compression performance testing device according to claim 1, characterized in that: The telescopic mechanism comprises a second groove opened inside the movable plate (16), a first double-headed screw (18) being rotatably mounted inside the second groove, and two first movable seats (19) being threadedly mounted on the outer wall of the first double-headed screw (18).

7. A packaging box wall compression performance testing device according to claim 6, characterized in that: The ends of the two first movable seats (19) away from the first double-headed screw (18) are both rotatably mounted with a rotating rod (20), and the ends of the two rotating rods (20) away from the first movable seats (19) are both hinged to a movable frame (21) adjacent thereto.

8. A packaging box wall compression performance testing device according to claim 1, characterized in that: The correction mechanism comprises four rotating plates (6), the four rotating plates (6) being rotatably mounted inside corresponding moving frames (21), the four rotating plates (6) being provided with receiving grooves (22) inside, and the four receiving grooves (22) being provided with two matching clamping plates (23) inside.

9. A packaging box wall compression performance testing device according to claim 8, characterized in that: A third groove (24) is provided on one inner wall of each of the four receiving grooves (22), a second double-headed screw rod (25) is rotatably mounted inside each of the four third grooves (24), and two second movable seats (26) are threadedly mounted on the outer walls of the four second double-headed screw rods (25).

10. A packaging box wall compression performance testing device according to claim 9, characterized in that: An electric telescopic rod (27) is installed at one end of the two second movable seats (26) away from the second double-headed screw rod (25), and the telescopic ends of the two electric telescopic rods (27) are connected to the clamping plates (23) adjacent thereto, and the top ends of the two clamping plates (23) are provided with sharp portions (28).

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