A durable corrugated box compression testing device

Abstract

The utility model discloses a kind of durable corrugated box compression testing device, including bottom plate, the top side of bottom plate is equipped with long slot, long slot is cross-shaped, fixedly installed with placing plate in long slot, through the collaborative design of driving assembly, transmission assembly and clamping assembly, effectively solve the carton side fixed problem, motor as driving source, drive first bidirectional screw rod rotation, through the multistage transmission of first synchronous wheel, synchronous belt, second synchronous wheel, transmission rod, first bevel gear and second bevel gear, make first bidirectional screw rod and second bidirectional screw rod reverse rotation, since the thread rotation direction of two screw rods is opposite, the slider of its outside drives fixed rod and clamping plate synchronous to carton four sides and adhere, after clamping plate and carton side contact, limit the displacement of carton when testing, inclination, ensure that vertical pressure evenly conducts to carton surface, avoid the test force value deviation caused by side no constraint, improve the accuracy and reliability of test data.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box compression resistance testing technology, and in particular to a durable corrugated cardboard box compression resistance testing device. Background Technology

[0002] In the packaging industry, corrugated boxes are the most widely used packaging containers. Their compression resistance directly affects the safety and integrity of products during transportation and warehousing. Corrugated box compression testing equipment is a key device for evaluating box quality and optimizing packaging design, and plays an indispensable role in ensuring the stable operation of the logistics chain.

[0003] Existing compression testing devices lack effective measures to fix the sides of the carton. During testing, the carton relies only on the bottom and top surfaces for constraint, leaving the sides in a free state without constraint. When vertical pressure is applied, the carton is prone to displacement, tilting, or even tipping over due to the lack of side support. This results in the pressure not being applied evenly and vertically to the carton surface, severely interfering with the accuracy of the test force value and failing to accurately represent the carton's true compression resistance. Furthermore, any displacement of the carton during testing leads to uneven pressure distribution, prematurely causing localized structural damage. This results in test results that are far lower than the carton's actual load-bearing capacity, leading to misjudgments of the carton's compression strength. Such misjudgments may cause packaging designers to make deviations when selecting carton types and specifications, affecting the safety and reliability of product packaging. Therefore, a durable corrugated carton compression testing device is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a durable corrugated cardboard box compression resistance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A durable corrugated cardboard box compression resistance testing device includes a base plate. A cross-shaped elongated groove is formed on the top side of the base plate. A placement plate is fixedly installed within the groove. A circular hole is formed on one side of the base plate, and a second bidirectional screw is disposed within the hole. One end of the second bidirectional screw is rotatably connected to the inner wall of one side of the elongated groove, and the other end of the second bidirectional screw is fixedly connected to a second bevel gear. A driving assembly is disposed within the elongated groove, and a transmission assembly is disposed between the driving assembly and the second bevel gear. A bracket is fixedly installed on the top side of the base plate, and a testing assembly is disposed below the bracket. A clamping assembly is also disposed within the elongated groove.

[0007] Preferably, the drive assembly includes a motor fixedly mounted on one side of a base plate, the output end of the motor rotating through the base plate and fixedly connected to a first bidirectional screw, and the other end of the first bidirectional screw fixedly connected to a first synchronous pulley.

[0008] Preferably, the transmission assembly includes a fixed frame fixedly installed on one side of the base plate. The fixed frame is U-shaped and has round holes on both sides. The two round holes are provided with the same transmission rod. The two ends of the transmission rod are respectively fixedly sleeved with a second synchronous pulley and a first bevel gear. The second synchronous pulley and the first synchronous pulley share the same synchronous belt. The first bevel gear meshes with the second bevel gear.

[0009] Preferably, two limiting rings are fixedly installed on the outer side of the transmission rod, and the sides of the two limiting rings that are far apart from each other are respectively attached to the inner walls of the two sides of the fixing frame.

[0010] Preferably, the clamping assembly includes a first bidirectional screw and a second bidirectional screw, both of which are threadedly fitted with two sliders. The sliders are adapted to the long groove and are slidably installed in the long groove. The top sides of the sliders are fixedly installed with fixing rods, and the opposite faces of the fixing rods are fixedly connected to clamping plates.

[0011] Preferably, the test assembly includes a cylinder fixedly mounted on the top side of the bracket, the output end of the cylinder passing through the bracket and fixedly connected to a connecting plate, a pressure sensor fixedly connected to the bottom side of the connecting plate, and a detection plate fixedly connected to the bottom side of the pressure sensor.

[0012] Preferably, the bottom side of the base plate is fixedly equipped with four support legs.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the coordinated design of the drive assembly, transmission assembly, and clamping assembly, the problem of fixing the side of the carton is effectively solved. The motor serves as the drive source, driving the first bidirectional screw to rotate. Through the multi-stage transmission of the first synchronous pulley, synchronous belt, second synchronous pulley, transmission rod, first bevel gear, and second bevel gear, the first bidirectional screw and the second bidirectional screw rotate in opposite directions. Since the threads of the two screws rotate in opposite directions, the sliders on their outer sides drive the fixing rod and clamping plate to move synchronously to the four sides of the carton and fit together. After the clamping plate contacts the side of the carton, it restricts the displacement and tilt of the carton during testing, ensuring that the vertical pressure is evenly transmitted to the surface of the carton, avoiding test force deviation caused by the lack of side constraint, and improving the accuracy and reliability of test data.

[0015] 2. After the clamping plate has fixed the four sides of the carton, the cylinder drives the connecting plate, pressure sensor and detection plate to move down to apply pressure. The pressure sensor monitors and controls the detection plate in real time to test with constant pressure. Because the clamping structure composed of slider, fixed rod and clamping plate restricts the lateral movement of the carton, the pressure can be evenly distributed on the whole carton, preventing local stress concentration and premature damage caused by displacement. It can ensure that the test results truly reflect the carton's compression resistance, avoid the carton selection deviation caused by test error, provide reliable data support for packaging design, and ensure the safety and applicability of product packaging. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 The structure of this utility model Figure 2 Partial schematic diagram of section A;

[0019] Figure 4 This is a schematic diagram of the transmission rod part of the structure of this utility model.

[0020] In the diagram: 1. Base plate; 2. Bracket; 3. Cylinder; 4. Connecting plate; 5. Pressure sensor; 6. Detection plate; 7. Motor; 8. First bidirectional screw; 9. First synchronous pulley; 10. Fixing frame; 11. Transmission rod; 12. Second synchronous pulley; 13. Synchronous belt; 14. First bevel gear; 15. Second bidirectional screw; 16. Second bevel gear; 17. Slider; 18. Fixing rod; 19. Clamping plate; 20. Limiting ring; 21. Support leg; 22. Placement plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-4A durable corrugated cardboard box compression resistance testing device includes a base plate 1. A cross-shaped elongated groove is formed on the top side of the base plate 1. A placement plate 22 is fixedly installed within the groove. A circular hole is formed on one side of the base plate 1, and a second bidirectional screw 15 is disposed within the hole. One end of the second bidirectional screw 15 is rotatably connected to the inner wall of one side of the elongated groove, and the other end of the second bidirectional screw 15 is fixedly connected to a second bevel gear 16. A driving assembly is disposed within the elongated groove, and a transmission assembly is disposed between the driving assembly and the second bevel gear 16. A bracket 2 is fixedly installed on the top side of the base plate 1. A testing assembly is located below the support 2, and a clamping assembly is also located within the long slot. The transmission assembly includes a U-shaped mounting bracket 10 fixedly installed on one side of the base plate 1. Both sides of the bracket 10 have round holes, and the same transmission rod 11 is installed in each hole. A second synchronous pulley 12 and a first bevel gear 14 are respectively fixedly sleeved at both ends of the transmission rod 11. The second synchronous pulley 12 and the first synchronous pulley 9 share the same synchronous belt 13. The first bevel gear 14 meshes with the second bevel gear 16. The first synchronous pulley 9 is provided, and... Because the first synchronous pulley 9 and the second synchronous pulley 12 share the same synchronous belt 13, under the meshing transmission of the synchronous belt 13, the second synchronous pulley 12 will drive the transmission rod 11 connected to it to rotate synchronously clockwise. Since the other end of the transmission rod 11 is fixedly sleeved with the first bevel gear 14, and the first bevel gear 14 meshes with the second bevel gear 16, under the meshing transmission of the first bevel gear 14, the second bevel gear 16 will drive the second bidirectional screw 15 connected to it to rotate counterclockwise. Since the two threads of the second bidirectional screw 15 have opposite directions, when the motor 7 drives the first bidirectional screw 8 to rotate clockwise, the transmission of the synchronous pulley and the bevel gear will cause the two sliders 17, which are threaded on the outer sides of the first bidirectional screw 8 and the second bidirectional screw 15, to move closer to each other. This will cause the fixing rods 18, which are fixedly connected to the top sides of the multiple sliders 17, to drive the clamping plates 19, which are fixedly connected to the opposite sides, to move closer to each other. This will cause the multiple clamping plates 19 to adhere to the four sides of the corrugated cardboard box, providing a stable limiting effect during subsequent pressure testing, avoiding tilting, and ensuring the accuracy of the test data.

[0023] Specifically, the drive assembly includes a motor 7 fixedly mounted on one side of the base plate 1. The output end of the motor 7 rotates through the base plate 1 and is fixedly connected to a first bidirectional screw 8. The other end of the first bidirectional screw 8 is fixedly connected to a first synchronous wheel 9. When it is necessary to fix the carton, the motor 7 is started to drive the first bidirectional screw 8 to rotate clockwise, and the four sides can be fixed under the action of the transmission assembly. When it is necessary to loosen the fixation of the carton, the motor 7 is started to drive the first bidirectional screw 8 to rotate counterclockwise.

[0024] Specifically, two limiting rings 20 are fixedly installed on the outer side of the transmission rod 11. The two limiting rings 20 are respectively attached to the inner walls of the two sides of the fixing frame 10 on the opposite side. By setting two limiting rings 20, the two limiting rings 20 can limit the transmission rod 11, so that it can only rotate and will not move left or right, thereby ensuring the stable transmission of the synchronous pulley and bevel gear.

[0025] Specifically, the clamping assembly includes two sliders 17 threadedly sleeved on the outer sides of the first bidirectional screw 8 and the second bidirectional screw 15. The sliders 17 are adapted to the long groove and are slidably installed in the long groove. The top sides of the sliders 17 are fixedly installed with fixing rods 18. The opposite faces of the fixing rods 18 are fixedly connected with clamping plates 19. With the clamping plates 19 provided, and because the clamping plates 19 face the four sides of the carton respectively, under the transmission of the transmission assembly and the drive assembly, the four clamping plates 19 will move synchronously towards the four sides of the carton until they are completely in contact with the four sides of the carton.

[0026] Specifically, the testing components include a cylinder 3 fixedly installed on the top side of the bracket 2, the output end of the cylinder 3 passing through the bracket 2 and fixedly connected to a connecting plate 4, a pressure sensor 5 fixedly connected to the bottom side of the connecting plate 4, a detection plate 6 fixedly connected to the bottom side of the pressure sensor 5, and four support legs 21 fixedly installed on the bottom side of the base plate 1. By setting up the cylinder 3, when the carton is fixed and pressure testing is required, starting the cylinder 3 will drive the connecting plate 4 to move down. The downward movement of the connecting plate 4 will synchronously drive the pressure sensor 5 and the detection plate 6 to move towards the top of the corrugated carton. The pressure sensor 5 will control the detection plate 6 to test the corrugated carton with the same extrusion force. When the corrugated carton deforms under the same extrusion force, it will become a defective product.

[0027] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0028] In use: After placing the corrugated cardboard box to be tested on the placement plate 22, start the motor 7. The motor 7 drives the first bidirectional screw 8 to rotate clockwise. Since the other end of the first bidirectional screw 8 is fixedly sleeved with the first synchronous pulley 9, and the first synchronous pulley 9 and the second synchronous pulley 12 are meshed and transmitted through the same synchronous belt 13, the second synchronous pulley 12 will drive the transmission rod 11 connected to it to rotate clockwise synchronously. Since the other end of the transmission rod 11 is fixedly sleeved with the first bevel gear 14, and the first bevel gear 14 and the second bevel gear 16 mesh with each other, under the transmission action of the first bevel gear 14, the second bevel gear 16 drives the second bidirectional screw 15 connected to it to rotate counterclockwise. And since the two ends of the second bidirectional screw 15 have opposite threads, the same applies to the first bidirectional screw 8. When the motor 7 drives the first bidirectional screw 8 to rotate clockwise, through the multi-stage transmission of the synchronous pulley and the bevel gears... The sliders 17, which are threaded onto the outer sides of the first bidirectional screw 8 and the second bidirectional screw 15, will move closer to each other synchronously. Each slider 17 is fixedly connected to a fixing rod 18 on its top side. The fixing rod 18 drives the clamping plate 19 on its opposite side to move synchronously, so that the multiple clamping plates 19 are tightly fitted to the four sides of the corrugated cardboard box. This structural design can provide stable limiting support for the cardboard box during the subsequent pressure test, effectively preventing the cardboard box from tilting or displacing under pressure. After the four sides of the cardboard box are fixed, the cylinder 3 is started. The operation of the cylinder 3 drives the connecting plate 4 to move downward. The connecting plate 4 synchronously drives the pressure sensor 5 and the detection plate 6 to move towards the top of the corrugated cardboard box. The pressure sensor 5 can monitor and control the detection plate 6 in real time to ensure that it tests the corrugated cardboard box with a constant extrusion pressure. If the corrugated cardboard box deforms under the same extrusion pressure, it is judged to be a defective product. This completes the entire process of pressure testing of the corrugated cardboard box.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A durable corrugated cardboard box compression resistance testing device, comprising a base plate (1), characterized in that, The top side of the base plate (1) is provided with a long groove, which is cross-shaped. A placement plate (22) is fixedly installed in the long groove. A round hole is provided on one side of the base plate (1). A second bidirectional screw (15) is provided in the round hole. One end of the second bidirectional screw (15) is rotatably connected to the inner wall of one side of the long groove. The other end of the second bidirectional screw (15) is fixedly connected to a second bevel gear (16). A drive assembly is provided in the long groove. A transmission assembly is provided between the drive assembly and the second bevel gear (16). A bracket (2) is fixedly installed on the top side of the base plate (1). A test assembly is provided below the bracket (2). A clamping assembly is also provided in the long groove.

2. The durable corrugated cardboard box compression resistance testing device according to claim 1, characterized in that, The drive assembly includes a motor (7) fixedly installed on one side of the base plate (1), the output end of the motor (7) rotates through the base plate (1) and is fixedly connected to a first bidirectional screw (8), and the other end of the first bidirectional screw (8) is fixedly connected to a first synchronous pulley (9).

3. The durable corrugated cardboard box compression resistance testing device according to claim 1, characterized in that, The transmission assembly includes a base plate (1) on one side of which a fixed frame (10) is fixedly installed. The fixed frame (10) is U-shaped and has round holes on both sides. The two round holes are provided with the same transmission rod (11). The two ends of the transmission rod (11) are respectively fixedly sleeved with a second synchronous pulley (12) and a first bevel gear (14). The second synchronous pulley (12) and the first synchronous pulley (9) share the same synchronous belt (13). The first bevel gear (14) meshes with the second bevel gear (16).

4. The durable corrugated cardboard box compression resistance testing device according to claim 3, characterized in that, Two limiting rings (20) are fixedly installed on the outer side of the transmission rod (11), and the two limiting rings (20) are respectively attached to the inner walls of the two sides of the fixing frame (10) on the side away from each other.

5. The durable corrugated cardboard box compression resistance testing device according to claim 1, characterized in that, The clamping assembly includes a first bidirectional screw (8) and a second bidirectional screw (15), both of which are threaded with two sliders (17). The sliders (17) are adapted to the long groove and are slidably installed in the long groove. The top sides of the sliders (17) are fixedly installed with fixing rods (18), and the opposite sides of the fixing rods (18) are fixedly connected with clamping plates (19).

6. The durable corrugated cardboard box compression resistance testing device according to claim 1, characterized in that, The test assembly includes a cylinder (3) fixedly installed on the top side of a bracket (2), the output end of the cylinder (3) passing through the bracket (2) and fixedly connected to a connecting plate (4), a pressure sensor (5) fixedly connected to the bottom side of the connecting plate (4), and a detection plate (6) fixedly connected to the bottom side of the pressure sensor (5).

7. The durable corrugated cardboard box compression resistance testing device according to claim 1, characterized in that, The bottom side of the base plate (1) is fixedly installed with four support legs (21).

Images