Carton compression tester

Abstract

The utility model belongs to the technical field of compression resistance testers, and discloses a carton compression resistance tester which comprises a base, stand columns, a lifting frame, a lifting assembly and an electric sliding table, a pressing plate is arranged at the bottom of the lifting frame in a sliding mode, a pressure sensor is arranged on the pressing plate, a bearing table is arranged on the base, and a lifting frame is further vertically arranged on the lower sides of the two stand columns in a sliding mode. A mounting frame is arranged on the lifting frame, a first clamping assembly and a second clamping assembly are arranged on the mounting frame, the first clamping assembly comprises two first clamping plates arranged on the mounting frame in a sliding mode, a first driving assembly is further arranged on the mounting frame, and the second clamping assembly comprises two second clamping plates arranged on the mounting frame in a sliding mode; the sliding direction of the second clamping plate is perpendicular to the first clamping plate, and a second driving assembly is further arranged on the mounting frame. The lifting assembly drives the lifting frame to descend and drives the pressing plate to descend, the pressing plate makes contact with the carton and presses downwards till the carton deforms, and the pressure sensor continuously records numerical values to obtain compression resistance data of the carton.

Description

Technical Field

[0001] The utility model relates to the technical field of compression testers, in particular to a carton compression tester. Background Art

[0002] At present, in the daily production of corrugated and other cartons, most domestic carton manufacturers consider the load-bearing capacity of the cartons to be an important technical indicator of the quality and performance of the cartons. Pressure testing of finished cartons is required to ensure that the product quality of the cartons meets the company's usage standards. Therefore, every carton manufacturer needs to be equipped with a carton compression tester. The carton compression tester is a professional testing machine used to test the compression resistance of carton. It adopts system control, high degree of automation, fast data collection, automatic measurement, intelligent judgment and other functions, and the test process is completed automatically.

[0003] Existing carton compression testers are usually composed of a bracket, a lifting frame, a pressure plate, a pressure sensor, and a load-bearing platform. In order to obtain accurate values ​​during use, the lifting frame and the pressure plate are usually lowered very slowly, so that the staff usually adjust the distance between the pressure plate and the load-bearing platform to be only slightly higher than the height of the carton to be tested, so as to reduce the distance the pressure plate descends during the test, thereby improving work efficiency. However, the carton to be tested needs to be placed in the middle of the lower pressure plate as much as possible. When the distance between the pressure plate and the load-bearing platform is small, the staff usually need to squat and lower their heads so that they can see the area between the pressure plate and the load-bearing platform, and then place the carton in the middle of the lower pressure plate, which is more inconvenient to operate. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a carton compression tester.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a carton compression tester, comprising a base, two columns are arranged on the base at intervals along the length direction of the base, a lifting frame is arranged for vertical sliding between the two columns, one of the columns is provided with a lifting assembly for driving the lifting frame, a horizontally arranged pressure plate is arranged for vertical sliding at the bottom of the lifting frame, a pressure sensor connected to the lifting frame is arranged on the pressure plate, a bearing platform is arranged on the base corresponding to the pressure plate, a lifting frame is also arranged for vertical sliding on the lower sides of the two columns, and one of the columns is provided with a lifting frame for vertical sliding. The column is also provided with an electric slide that drives the lifting frame to rise and fall. The lifting frame is provided with an installation frame. The installation frame is provided with a first clamping assembly and a second clamping assembly. The first clamping assembly includes two first clamping plates slidably arranged on the installation frame. The installation frame is also provided with a first driving assembly that drives the two first clamping plates to slide toward the center of the installation frame. The second clamping assembly includes two second clamping plates slidably arranged on the installation frame. The sliding direction of the second clamping plate is perpendicular to the first clamping plate. The installation frame is also provided with a second driving assembly that drives the two second clamping plates to slide toward the center of the installation frame.

[0006] By adopting the above technical solution, a base, a lifting frame, a lifting assembly, a pressure sensor, a bearing platform, a first clamping assembly, a second clamping assembly, a first drive assembly, and a second drive assembly are set, and the carton is placed on the bearing platform to ensure that the edge of the carton is completely located on the surface of the bearing platform. The lifting frame and the installation frame are driven to rise by an electric slide, so that the first clamping assembly and the second clamping assembly are raised. When the height of the installation frame is higher than the bearing platform, the rise is stopped, and the first drive assembly and the second drive assembly are used to drive the two first clamping plates and the second clamping plates to move toward the middle of the bearing platform, so that the carton is positioned in the middle of the bearing platform. There is no need to look down at the area between the pressure plate and the bearing platform, and the operation is convenient; then the first drive assembly and the second drive assembly are used to drive the two first clamping plates and the second clamping plates to move toward the middle of the bearing platform, so that the area between the two first clamping plates and the second clamping plates is larger than the bearing platform, and then the lifting frame and the installation frame are driven to descend by the electric slide, and then the lifting assembly is used to drive the lifting frame to descend, drive the pressure plate to descend, and the pressure plate contacts and presses down on the carton until the carton is deformed. The pressure sensor continuously records the value to obtain the compression resistance data of the carton.

[0007] Furthermore, first sliding grooves are horizontally opened on the inner walls of the frame plates on opposite sides of the mounting frame, and the notches of the two first sliding grooves are arranged opposite to each other. The first clamping assembly includes first sliders that are respectively slidably arranged on both sides of the first sliding grooves, and one end of the first clamping plate is connected to the first slider in one of the first sliding grooves, and the other end is connected to the corresponding first slider in the other first sliding groove.

[0008] By adopting the above technical solution, the first sliding groove and the first sliding block are provided to ensure the sliding stability of the first clamping plate.

[0009] Furthermore, the first drive assembly includes a first bidirectional screw that is rotatably set in the first slide groove and arranged along the length direction of the first slide groove. The first sliding block is screwed together with the two ends of the first bidirectional screw through threaded holes respectively. The mounting frame is provided with a first drive unit that drives the two first bidirectional screws to rotate.

[0010] By adopting the above technical solution, a first bidirectional screw and a first driving unit are set, and the two first bidirectional screws are driven to rotate by the first driving unit, thereby driving the two first clamping plates to slide synchronously toward the middle of the supporting platform or synchronously slide away from the middle of the supporting platform.

[0011] Furthermore, the first drive unit includes a first drive motor arranged on a mounting frame, the output shaft of the first drive motor is arranged coaxially with one of the first bidirectional screws, the two first bidirectional screws adjacent to one end of the first drive motor pass through the side wall of the mounting frame and are provided with a first pulley, the two first pulleys are connected by a first transmission belt, a first magnetic coupler is provided between the first drive motor and the first bidirectional screw coaxial with its output shaft, one of the rotors of the first magnetic coupler is connected to the first bidirectional screw, and the other rotor is connected to the output shaft of the first drive motor.

[0012] By adopting the above technical solution, a first drive motor, a first pulley, a first transmission belt, and a first magnetic coupler are provided. The first drive motor drives one of the first bidirectional screws to rotate, driving the first pulley to rotate, and under the action of the first transmission belt, drives the other first pulley to rotate, thereby driving the other first bidirectional screw to rotate, and then drives the two first clamping plates to move toward the load-bearing center. One of the first clamping plates pushes the carton toward the center of the load-bearing platform until both first clamping plates are in contact with the carton. At this time, the carton is already in the center of the load-bearing platform, and the first clamping plate cannot continue to push, so that the first bidirectional screw cannot rotate, so that the rotor connected to the first magnetic coupler and the first bidirectional screw cannot rotate, and the other rotor still rotates under the drive of the first drive motor, so that the force of the first drive motor cannot be transmitted to the first bidirectional screw, thereby preventing the carton from being damaged by the first clamping plate, so that cartons of any length can be located in the center of the load-bearing platform in the sliding direction of the first clamping plate.

[0013] Furthermore, the mounting frame has second slide grooves on the inner walls of the frame plates on opposite sides where the first slide groove is not provided, the notches of the two second slide grooves are arranged opposite to each other, the upper groove wall of the second slide groove is coplanar with the lower groove wall of the first slide groove, the second clamping assembly includes second sliders respectively slidably provided on both sides of the second slide groove, one end of the second clamping plate is connected to the second slider in one of the second slide grooves, and the other end is connected to the corresponding second slider in the other second slide groove.

[0014] By adopting the above technical solution, a second sliding groove and a second sliding block are provided to ensure the sliding stability of the second clamping plate.

[0015] Furthermore, the second drive assembly includes a second bidirectional screw that is rotatably set in the second slide groove and arranged along the length direction of the second slide groove. The second sliding block is screwed together with the two ends of the second bidirectional screw through threaded holes respectively. The mounting frame is provided with a second drive unit that drives the two second bidirectional screws to rotate.

[0016] By adopting the above technical solution, a second bidirectional screw and a second driving unit are set, and the two second bidirectional screws are driven to rotate by the second driving unit, thereby driving the two second clamping plates to slide synchronously toward the middle of the supporting platform or synchronously slide away from the middle of the supporting platform.

[0017] Furthermore, the second drive unit includes a second drive motor arranged on the mounting frame, the output shaft of the second drive motor is arranged coaxially with one of the second bidirectional screws, the two second bidirectional screws adjacent to the second drive motor pass through the side wall of the mounting frame and are provided with a second pulley, the two second pulleys are connected by a second transmission belt, a second magnetic coupler is provided between the second drive motor and the second bidirectional screw coaxial with its output shaft, one of the rotors of the second magnetic coupler is connected to the second bidirectional screw, and the other rotor is connected to the output shaft of the second drive motor.

[0018] By adopting the above technical solution, a second drive motor, a second pulley, a second transmission belt, and a second magnetic coupling are provided. The second drive motor drives one of the second bidirectional screws to rotate, driving the second pulley to rotate, and under the action of the second transmission belt, drives the other second pulley to rotate, thereby driving the other second bidirectional screw to rotate, and then drives the two second clamping plates to move toward the load-bearing center; one of the second clamping plates pushes the carton toward the center of the load-bearing platform until both second clamping plates are in contact with the carton. At this time, the carton is already in the center of the load-bearing platform, and the second clamping plate cannot continue to push, so that the second bidirectional screw cannot rotate, so that the rotor connected to the second bidirectional screw by the second magnetic coupling cannot rotate, and the other rotor still rotates under the drive of the second drive motor, so that the force of the second drive motor cannot be transmitted to the second bidirectional screw, thereby preventing the carton from being damaged by the second clamping plate. At the same time, it ensures that cartons of any length can be located in the center of the load-bearing platform in the sliding direction of the second clamping plate.

[0019] Furthermore, two horizontally arranged first slide rails are spaced apart on the lifting frame, and the length direction of the first slide rails is perpendicular to the length direction of the base. The two sides of the mounting frame are slidably set on the corresponding first slide rails through sliders, and the mounting frame is provided with an electric push rod with a length direction consistent with the length direction of the first slide rail. A connecting plate is provided at the bottom of the mounting frame, and the piston rod end of the electric push rod is connected to the connecting plate.

[0020] By adopting the above technical solution, a first slide rail and an electric push rod are set. When the carton test is completed, the two first clamping plates and the second clamping plates are driven to move toward the middle of the load-bearing platform by the first drive component to clamp the carton, and then the electric push rod is used to push the installation frame to move, so that the carton is moved to the edge of the load-bearing platform, making it easier to remove the carton from the load-bearing platform.

[0021] Furthermore, a second slide rail is vertically provided on the inner side surface of the column, and both sides of the lifting frame are slidably provided on the corresponding second slide rails through sliders, and both sides of the lifting frame are slidably provided on the corresponding second slide rails through sliders.

[0022] By adopting the above technical solution, a second slide rail is vertically provided on the inner side surface of the column to ensure the stability of the vertical sliding of the lifting frame and the lifting frame.

[0023] Furthermore, a top plate is commonly provided on the top of the two columns, the lifting assembly includes a threaded rod vertically rotatably arranged on the column, a lifting block is provided on the lifting frame, the lifting block is screwed together with the threaded rod through a threaded hole, a rotating motor is vertically provided on the top plate, and the output shaft of the rotating motor passes downward through the top plate and is connected to the top end of the threaded rod.

[0024] By adopting the above technical solution, a top plate, a threaded rod and a rotating motor are provided, and the rotating motor drives the threaded rod to rotate, thereby driving the lifting block and the lifting frame to move up and down.

[0025] In summary, the utility model has the following beneficial effects: in the present application, a base, a lifting frame, a lifting assembly, a pressure sensor, a bearing platform, a first clamping assembly, a second clamping assembly, a first drive assembly, and a second drive assembly are set, and a carton is placed on the bearing platform to ensure that the edge of the carton is completely located on the surface of the bearing platform. The lifting frame and the installation frame are driven to rise by an electric slide, so that the first clamping assembly and the second clamping assembly are raised. When the height of the installation frame is higher than the bearing platform, the lifting is stopped, and the first drive assembly and the second drive assembly are used to drive the two first clamping plates and the second clamping plates to move upward. The middle of the load-bearing platform moves to position the carton in the middle of the load-bearing platform. There is no need to lower your head to observe the area between the pressure plate and the load-bearing platform, and the operation is convenient. The first drive component and the second drive component are then used to drive the two first clamping plates and the second clamping plates to move toward the middle of the load-bearing platform, so that the area between the two first clamping plates and the second clamping plates is larger than the load-bearing platform. The electric slide is then used to drive the lifting frame and the installation frame to descend, and then the lifting component is used to drive the lifting frame to descend, driving the pressure plate to descend, and the pressure plate contacts the carton and presses down until the carton is deformed. The pressure sensor continuously records the value to obtain the pressure resistance data of the carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0027] Figure 2 This is a structural diagram of the lifting frame, the installation frame, the first clamping assembly, and the second clamping assembly of an embodiment of the utility model;

[0028] Figure 3 yes Figure 2 A magnified view of part A;

[0029] Figure 4 This is a schematic structural diagram of the mounting frame, the first clamping assembly, and the second clamping assembly of an embodiment of the present utility model;

[0030] Figure 5 yes Figure 4 A magnified view of part B;

[0031] Figure 6 yes Figure 4 Enlarged view of part C.

[0032] In the figure: 10, base; 11, column; 12, lifting frame; 13, pressure plate; 14, pressure sensor; 15, bearing platform; 16, electric slide; 17, second slide rail; 18, top plate; 20, lifting assembly; 21, threaded rod; 22, lifting block; 23, rotating motor; 30, lifting frame; 31, mounting frame; 32, first slide; 33, second slide; 34, first slide rail; 35, electric push rod; 36, connecting plate; 40, first clamping assembly; 41, first clamping plate; 4 2. First slider; 50. Second clamping assembly; 51. Second clamping plate; 52. Second slider; 60. First drive assembly; 61. First bidirectional screw; 70. Second drive assembly; 71. Second bidirectional screw; 80. First drive unit; 81. First drive motor; 82. First pulley; 83. First transmission belt; 84. First magnetic coupling; 90. Second drive unit; 91. Second drive motor; 92. Second pulley; 93. Second transmission belt; 94. Second magnetic coupling. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] like Figure 1-6 As shown, the embodiment of the present application discloses a carton compression tester, which includes a base 10, a column 11, a lifting frame 12, a lifting assembly 20, a first clamping assembly 40, a second clamping assembly 50, a first drive assembly 60, and a second drive assembly 70. There are two columns 11, which are arranged on the base 10 at intervals along the length direction of the base 10. The lifting frame 12 is vertically slidable between the two columns 11. One of the columns 11 is provided with a lifting assembly 20 for driving the lifting frame 12 to move up and down. A horizontally arranged pressure plate 13 is provided on the bottom of the lifting frame 12 for vertical sliding. A pressure sensor 14 connected to the lifting frame 12 is provided on the pressure plate 13. A supporting platform 15 is provided on the base 10 corresponding to the pressure plate 13 for placing a carton. The lifting assembly 20 drives the lifting frame 12 to descend, so that the pressure plate 13 contacts and presses down on the carton. The pressure sensor 14 continuously records the value to obtain the compression resistance data of the carton.

[0035] Specifically, a lifting frame 30 is provided on the lower side of the two columns 11 for vertical sliding. One of the columns 11 is also provided with an electric slide 16 for driving the lifting frame 30 to move up and down. A mounting frame 31 is provided on the lifting frame 30, and a first clamping assembly 40 and a second clamping assembly 50 are both provided on the mounting frame 31. The first clamping assembly 40 includes two first clamping plates 41. First slide grooves 32 are horizontally provided on the inner walls of the frame plates on opposite sides of the mounting frame 31. The notches of the two first slide grooves 32 are arranged oppositely. The first clamping assembly 40 includes first sliders 42 respectively slidably provided on both sides of the first slide grooves 32. One end of the first clamping plate 41 is connected to the first slider 42 in one of the first slide grooves 32, and the other end is connected to the corresponding first slider 42 in the other first slide groove 32, so as to ensure the sliding stability of the first clamping plate 41.

[0036] The first drive assembly 60 is disposed on the mounting frame 31 and is used to drive the two first clamping plates 41 to slide toward the center of the mounting frame 31. The first drive assembly 60 includes a first bidirectional screw 61 that is rotatably disposed within the first slide slot 32 and arranged along the length of the first slide slot 32. The first slider 42 screwably engages with both ends of the first bidirectional screw 61 through threaded holes. When the first bidirectional threaded rod 21 rotates, the first slider 42 is driven to synchronously slide toward or away from the center of the support platform 15, thereby driving the two first clamping plates 41 to synchronously slide toward or away from the center of the support platform 15. A first drive unit 80 is provided on the mounting frame 31 to drive the two first bidirectional screws 61 to rotate.

[0037] The first drive unit 80 includes a first drive motor 81 mounted on a mounting frame. The output shaft of the first drive motor 81 is coaxially arranged with one of the first bidirectional screws 61. A first pulley 82 is provided at the end of each of the first bidirectional screws 61 adjacent to the first drive motor 81, extending through the side wall of the mounting frame 31. The two first pulleys 82 are connected by a first transmission belt 83, enabling the two first bidirectional screws 61 to rotate synchronously. A first magnetic coupler 84 is provided between the first drive motor 81 and the coaxial first bidirectional screw 61. One rotor of the first magnetic coupler 84 is connected to the first bidirectional screw 61, and the other rotor is connected to the output shaft of the first drive motor 81. The first drive motor 81 drives one of the first bidirectional screws 61 to rotate, driving the first pulley 82 to rotate. Under the action of the first transmission belt 83, the other first pulley 82 is driven to rotate, thereby driving the other first bidirectional screw 61 to rotate, and then driving the two first clamping plates 41 to move toward the load center. One of the first clamping plates 41 pushes the carton toward the center of the load platform 15 until both first clamping plates 41 are in contact with the carton. At this time, the carton is already at the center of the load platform 15. The first clamping plate 41 can no longer push, so that the first bidirectional screw 61 cannot rotate, thereby making the rotor connected to the first bidirectional screw 61 by the first magnetic coupler 84 unable to rotate. The other rotor is still driven by the first drive motor 81 to rotate, so that the force of the first drive motor 81 cannot be transmitted to the first bidirectional screw 61, preventing the carton from being damaged by the first clamping plate 41, so that any length of the carton can be located at the center of the load platform 15 in the sliding direction of the first clamping plate 41. The first drive motor 81 drives the first slider 42 to slide each time for half the length of the first bidirectional screw 61.

[0038] During installation, the second clamping assembly 50 includes two second clamping plates 51. Second slots 33 are provided on the inner walls of the frame plates on opposite sides of the mounting frame 31 where the first slots 32 are not provided. The notches of the two second slots 33 are arranged relative to each other, and the upper slot walls of the second slots 33 are coplanar with the lower slot walls of the first slots 32. This allows the second slots 33 and the first slots 32 to be staggered to prevent interference between the first clamping plate 41 and the second clamping plate 51. The second clamping assembly 50 includes second sliders 52 slidably disposed on either side of the second slots 33. One end of the second clamping plate 51 is connected to the second slider 52 in one of the second slots 33, and the other end is connected to the corresponding second slider 52 in the other second slot 33, ensuring the stability of the sliding of the second clamping plates 51. The sliding direction of the second clamping plates 51 is perpendicular to the first clamping plate 41. The second drive assembly 70 is provided on the mounting frame 31 to drive the two second clamping plates 51 to slide toward the center of the mounting frame 31.

[0039] The second drive assembly 70 includes a second bidirectional screw 71 rotatably disposed within the second chute 33 and arranged along its length. The second slider 52 is threadedly engaged with both ends of the second bidirectional screw 71 through threaded holes. When the second bidirectional screw 71 rotates, it drives the second slider 52 to slide synchronously toward or away from the center of the support platform 15, thereby driving the two second clamping plates 51 to slide synchronously toward or away from the center of the support platform 15. A second drive unit 90 is provided on the mounting frame 31 for driving the two second bidirectional screws 71 to rotate.

[0040] The second drive unit 90 includes a second drive motor 91 mounted on a mounting frame. The output shaft of the second drive motor 91 is coaxially arranged with one of the second bidirectional screws 71. The ends of the two second bidirectional screws 71 proximal to the second drive motor 91 extend through the sidewall of the mounting frame 31 and are provided with second pulleys 92. The two second pulleys 92 are connected by a second transmission belt 93, enabling the two second screws to rotate synchronously. A second magnetic coupler 94 is disposed between the second drive motor 91 and the coaxial second bidirectional screw 71. One rotor of the second magnetic coupler 94 is connected to the second bidirectional screw 71, and the other rotor is connected to the output shaft of the second drive motor 91. The second drive motor 91 drives one of the second bidirectional screws 71 to rotate, driving the second pulley 92 to rotate. Under the action of the second transmission belt 93, the other second pulley 92 is driven to rotate, thereby driving the other second bidirectional screw 71 to rotate, and then driving the two second clamping plates 51 to move toward the load center; one of the second clamping plates 51 pushes the carton toward the center of the load platform 15 until both second clamping plates 51 are in contact with the carton. At this time, the carton is already at the center of the load platform 15 and the second clamping plate 51 cannot push further, so the second bidirectional screw 71 cannot rotate, thereby preventing the rotor connected to the second bidirectional screw 71 by the second magnetic coupler 94 cannot rotate. The other rotor continues to rotate under the drive of the second drive motor 91, so that the force of the second drive motor 91 cannot be transmitted to the second bidirectional screw 71, preventing the carton from being damaged by the second clamping plate 51. At the same time, it ensures that any length of the carton can be located at the center of the load platform 15 in the sliding direction of the second clamping plate 51. The second drive motor 91 drives the second slider 52 to slide a distance of half the length of the second bidirectional screw 71 each time.

[0041] Two horizontally arranged first slide rails 34 are spaced apart on the lifting frame 30. The length direction of the first slide rails 34 is perpendicular to the length direction of the base 10. The two sides of the mounting frame 31 are respectively slidably mounted on the corresponding first slide rails 34 through sliders, so that the mounting frame 31 can slide along the first slide rails 34. The mounting frame 31 is provided with an electric push rod 35 whose length direction is consistent with the length direction of the first slide rail 34. The bottom of the mounting frame 31 is provided with a connecting plate 36. The piston rod end of the electric push rod 35 is connected to the connecting plate 36. When the carton test is completed, the first drive assembly 60 drives the two first clamping plates 41 and the second clamping plate 51 to move toward the middle of the carrier 15 to clamp the carton, and then pushes the mounting frame 31 to move through the electric push rod 35, so that the carton is moved to the edge of the carrier 15, making it easier to remove the carton from the carrier 15.

[0042] A second slide rail 17 is vertically arranged on the inner side surface of the column 11, and the two sides of the lifting frame 12 are slidably arranged on the corresponding second slide rails 17 through sliders. The two sides of the lifting frame 30 are slidably arranged on the corresponding second slide rails 17 through sliders. The second slide rail 17 is vertically arranged on the inner side surface of the column 11 to ensure the stability of the vertical sliding of the lifting frame 12 and the lifting frame 30.

[0043] A top plate 18 is commonly located on top of the two columns 11. A lifting assembly 20 includes a threaded rod 21 that rotates vertically on the columns 11. A lifting block 22 is mounted on the lifting frame 12. The lifting block 22 engages with the threaded rod 21 through a threaded hole, allowing the threaded rod 21 to rotate, driving the lifting block 22 up and down, thereby driving the lifting frame 12 up and down. A rotary motor 23 is vertically mounted on the top plate 18. The output shaft of the rotary motor 23 passes downward through the top plate 18 and connects to the top of the threaded rod 21. The rotary motor 23 drives the threaded rod 21 to rotate, thereby driving the lifting block 22 and the lifting frame 12 up and down.

[0044] During the specific setting, four sliding rods are provided on the lifting frame 12 for vertical sliding, and the pressure plate 13 is connected to the lower ends of the four sliding rods. A pressure ring is provided on the upper side of the sliding rod, and the sliding rod is located on the pressure ring and the rod body of the lifting frame 12 bracket, and a spring is provided. One end of the spring abuts against the lifting frame 12 and the other end abuts against the pressure ring. A nut is threadedly connected to the upper end of the sliding rod, and the nut is connected to the pressure ring. During the test, it is necessary to ensure that the pressure plate 13 remains balanced, so it is necessary to adjust the level of the pressure plate 13. Through the nut, the levelness of the pressure plate 13 can be better adjusted to improve the accuracy of the test. Furthermore, through the buffering effect of the spring, the compression can be smoother during the test and the test accuracy can be more accurate.

[0045] The operating principle of a carton compression tester in this embodiment is as follows: place the carton on the load-bearing platform 15 to ensure that the edge of the carton is completely located on the surface of the load-bearing platform 15, and drive the lifting frame 30 and the installation frame 31 to rise through the electric slide 16, so that the first clamping assembly 40 and the second clamping assembly 50 rise. When the height of the installation frame 31 is higher than the load-bearing platform 15, stop rising, start the first drive motor 81 and the second drive motor 91, drive the first bidirectional screw 61 and the second bidirectional screw 71 to rotate, and drive the two first clamping plates 41 and the two second clamping plates 51 to slide synchronously toward the middle of the load-bearing platform 15. When the two first clamping plates 41 or the two second clamping plates 51 are in contact with the carton, the first magnetic coupler 84 or the second magnetic coupler 94 disconnects the power transmission between the first drive motor 81 and the second drive motor 91 and the first bidirectional screw 61 and the second bidirectional screw 71. Then, the first drive motor 81 and the second drive motor 91 are used to drive the two first clamping plates 41 and the second clamping plates 51 to move toward the middle of the load-bearing platform 15, so that the area between the two first clamping plates 41 and the second clamping plates 51 is larger than the load-bearing platform 15, and then the electric slide 16 is used to drive the lifting frame 30 and the installation frame 31 to descend, and finally the rotating motor 23 is started to drive the threaded rod 21 to rotate, so that the lifting frame 12 and the pressure plate 13 descend, and the pressure plate 13 contacts the carton and presses down until the carton is deformed, and the pressure sensor 14 continuously records the value to obtain the pressure resistance data of the carton.

[0046] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A carton compression tester, characterized by: The utility model comprises a base (10), two columns (11) are arranged on the base (10) at intervals along the length direction of the base (10), a lifting frame (12) is arranged between the two columns (11) for vertical sliding, a lifting assembly (20) for driving the lifting frame (12) to move up and down is arranged on one of the columns (11), a horizontally arranged pressure plate (13) is arranged on the bottom of the lifting frame (12) for vertical sliding, a pressure sensor (14) connected to the lifting frame (12) is arranged on the pressure plate (13), a bearing platform (15) is arranged on the base (10) corresponding to the pressure plate (13), a lifting frame (30) is also arranged on the lower side of the two columns (11) for vertical sliding, and an electric slide (15) for driving the lifting frame (30) to move up and down is also arranged on one of the columns (11). 6), the lifting frame (30) is provided with a mounting frame (31), and the mounting frame (31) is provided with a first clamping assembly (40) and a second clamping assembly (50), the first clamping assembly (40) includes two first clamping plates (41) slidably arranged on the mounting frame (31), and the mounting frame (31) is further provided with a first driving assembly (60) for driving the two first clamping plates (41) to slide toward the center of the mounting frame (31), and the second clamping assembly (50) includes two second clamping plates (51) slidably arranged on the mounting frame (31), and the sliding direction of the second clamping plates (51) is perpendicular to the first clamping plates (41), and the mounting frame (31) is further provided with a second driving assembly (70) for driving the two second clamping plates (51) to slide toward the center of the mounting frame (31).

2. The carton compression tester according to claim 1, characterized in that: The first sliding grooves (32) are horizontally opened on the inner walls of the frame plates on opposite sides of the installation frame (31), and the notches of the two first sliding grooves (32) are arranged opposite to each other. The first clamping assembly (40) includes first sliders (42) respectively slidably arranged on both sides of the first sliding grooves (32). One end of the first clamping plate (41) is connected to the first slider (42) in one of the first sliding grooves (32), and the other end is connected to the corresponding first slider (42) in the other first sliding groove (32).

3. The carton compression tester according to claim 2, characterized in that: The first driving assembly (60) includes a first bidirectional screw (61) rotatably arranged in the first sliding groove (32) and arranged along the length direction of the first sliding groove (32); the first sliding block (42) is screw-matched with both ends of the first bidirectional screw (61) through threaded holes respectively; and a first driving unit (80) for driving the two first bidirectional screws (61) to rotate is provided on the mounting frame (31).

4. The carton compression tester according to claim 3, characterized in that: The first drive unit (80) includes a first drive motor (81) arranged on a mounting frame, wherein the output shaft of the first drive motor (81) is coaxially arranged with one of the first bidirectional screws (61), one end of the two first bidirectional screws (61) adjacent to the first drive motor (81) passes through the side wall of the mounting frame (31) and is provided with a first pulley (82), the two first pulleys (82) are connected by a first transmission belt (83), a first magnetic coupler (84) is provided between the first drive motor (81) and the first bidirectional screw (61) coaxial with the output shaft thereof, one rotor of the first magnetic coupler (84) is connected to the first bidirectional screw (61), and the other rotor is connected to the output shaft of the first drive motor (81).

5. The carton compression tester according to claim 1, characterized in that: The second sliding groove (33) is provided on the inner wall of the frame plate on the two opposite sides of the installation frame (31) where the first sliding groove (32) is not provided. The notches of the two second sliding grooves (33) are arranged opposite to each other. The upper groove wall of the second sliding groove (33) is coplanar with the lower groove wall of the first sliding groove (32). The second clamping assembly (50) includes second sliders (52) respectively slidably arranged on both sides of the second sliding groove (33). One end of the second clamping plate (51) is connected to the second slider (52) in one of the second sliding grooves (33), and the other end is connected to the corresponding second slider (52) in the other second sliding groove (33).

6. The carton compression tester according to claim 5, characterized in that: The second driving assembly (70) includes a second bidirectional screw (71) rotatably arranged in the second chute (33) and arranged along the length direction of the second chute (33); the second sliding block (52) is screw-matched with both ends of the second bidirectional screw (71) through threaded holes respectively; and a second driving unit (90) for driving the two second bidirectional screws (71) to rotate is provided on the mounting frame (31).

7. The carton compression tester according to claim 6, characterized in that: The second drive unit (90) includes a second drive motor (91) arranged on a mounting frame, wherein the output shaft of the second drive motor (91) is coaxially arranged with one of the second bidirectional screws (71), and one end of the two second bidirectional screws (71) adjacent to the second drive motor (91) passes through the side wall of the mounting frame (31) and is provided with a second pulley (92), and the two second pulleys (92) are connected by a second transmission belt (93), and a second magnetic coupler (94) is provided between the second drive motor (91) and the second bidirectional screw (71) coaxially arranged with the output shaft thereof, and one rotor of the second magnetic coupler (94) is connected to the second bidirectional screw (71), and the other rotor is connected to the output shaft of the second drive motor (91).

8. The carton compression tester according to claim 1, characterized in that: Two horizontally arranged first slide rails (34) are arranged at intervals on the lifting frame (30), and the length direction of the first slide rails (34) is perpendicular to the length direction of the base (10). The two sides of the installation frame (31) are slidably arranged on the corresponding first slide rails (34) through sliders. The installation frame (31) is provided with an electric push rod (35) whose length direction is consistent with the length direction of the first slide rail (34). A connecting plate (36) is provided at the bottom of the installation frame (31), and the piston rod end of the electric push rod (35) is connected to the connecting plate (36).

9. The carton compression tester according to claim 1, characterized in that: A second slide rail (17) is vertically arranged on the inner side of the column (11), and both sides of the lifting frame (12) are slidably arranged on the corresponding second slide rail (17) through sliders, and both sides of the lifting frame (30) are slidably arranged on the corresponding second slide rail (17) through sliders.

10. The carton compression tester according to claim 1, characterized in that: A top plate (18) is commonly provided on the tops of the two upright posts (11); the lifting assembly (20) comprises a threaded rod (21) vertically rotatably provided on the upright post (11); a lifting block (22) is provided on the lifting frame (12); the lifting block (22) is screwedly engaged with the threaded rod (21) through a threaded hole; a rotating motor (23) is vertically provided on the top plate (18); an output shaft of the rotating motor (23) passes downward through the top plate (18) and is connected to the top end of the threaded rod (21).

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