Drop test machine
By using a combination of pressure-sensitive floor mats and high-speed cameras in the drop tester, the problem of inaccurate judgment of whether the packaging material has fallen and deformed in the prior art is solved, and the accurate recording of the deformation state during the object drop and the reliability of the test results is achieved.
Patent Information
- Application Number
- CN202420885607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During the testing process, the existing drop test machine cannot accurately determine whether the packaging material has fallen and deformed, resulting in unreliable results.
A drop test machine is designed, using a combination of pressure-sensitive floor mats and high-speed cameras to sense the pressure signal of the object through the pressure-sensitive floor mats, and control the shooting and recording of the instantaneous deformation state of the object, thereby obtaining detailed deformation data of the object during the fall.
Accurate recording of the deformation state during object drop is achieved, the reliability of test results is improved, and the test safety is improved through the protective fence structure.
Smart Images
Figure CN222599109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary equipment for drop test machines, in particular to a drop test machine. Background Art
[0002] Packaging materials refer to the containers used for transportation and storage of products during production and circulation, such as plastic bottles and cartons. Packaging materials are widely used in daily life and industrial production. However, products will inevitably be squeezed or even dropped during transportation. If the strength of the packaging materials is not considered, it may cause product damage and leakage. Therefore, in order to protect the product, the packaging materials of the product need to have a certain degree of drop resistance. In order to test the protection ability of the product packaging or shell to the product, the industry has gradually developed a drop tester.
[0003] The drop test machine simulates the situation when the different edges, corners and surfaces of the product packaging materials fall to the ground at different heights, so as to understand the damage of the product and evaluate the falling height and impact strength that the product packaging materials can withstand when falling. Manufacturers can improve and perfect the product packaging materials within the national standard according to the test results. However, the current drop test machine still has some disadvantages. During the actual packaging material drop test, plastic bottles or cartons and other packaging materials will undergo instantaneous elastic deformation when they fall to the ground. When this elastic deformation cannot be restored, the experimenter can record the test results by observing the shape of the packaging material after falling. However, when this elastic deformation rebounds, due to the high speed of the object during the falling process, the experimenter cannot judge whether the packaging material has fallen and deformed by sense alone, and thus cannot determine whether the packaging material meets the test standards, resulting in unreliable result data. Utility Model Content
[0004] The purpose of the utility model is to provide a drop tester to solve the problems raised in the background technology in view of the shortcomings of the prior art.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A drop test machine comprises a test machine body and a protective fence structure fixed on the front side and left and right sides of the test machine body; the test machine body comprises a bottom plate, a pressure-sensitive mat fixed on the top surface of the bottom plate, and three groups of high-speed cameras fixed on the front side wall and left and right side walls of the bottom plate and matched with the pressure-sensitive mat; a column is also fixed on the upper surface of the bottom plate, an electric-controlled slide is arranged on the front of the column, a horizontally arranged slide rail is fixed on the electric-controlled slide, two groups of support plates are arranged at intervals on the slide rail, and an object is held between the two groups of support plates; the protective fence structure comprises two connecting plates fixed on the side walls of the bottom plate, and a circular frame connected to the ends of the connecting plates, and a wire mesh is welded inside the circular frame.
[0007] As a preferred solution of the drop tester, two sliding blocks that move away from or toward each other are arranged inside the slide rail, and the upper surfaces of the sliding blocks are fixedly connected to the bottom surface of the support plate.
[0008] As a preferred solution of the drop tester, a support column is fixed at the upper right corner of the top surface of the bottom plate, and an electric control box is installed on the top surface of the support column for controlling the pressure-sensitive floor mat and the high-speed camera.
[0009] As a preferred solution of the drop tester, brackets are fixed to the front side and left and right sides of the bottom plate, and the top surface of the bracket is fixedly connected to the bottom surface of the high-speed camera by screws.
[0010] As a preferred solution of the drop tester, the shooting ends of the high-speed cameras are spaced 10 cm to 25 cm from the upper surface of the bottom plate, so as to shoot the deformation posture of the object when it falls.
[0011] As a preferred solution of the drop tester, the pressure sensing mat is located below the object, and a layer of cement board is adhered and fixed to the upper surface of the pressure sensing mat by an adhesive to restore the hardness of the object when it falls.
[0012] As a preferred solution for the drop tester, the circular frames and the steel wire meshes on both sides of the bottom plate are arranged symmetrically with the central axis of the bottom plate as a base point.
[0013] Beneficial effects of the utility model:
[0014] The utility model arranges a pressure-sensing floor mat on the falling surface of the drop tester, and cooperates with the high-speed camera through the pressure-sensing floor mat. When the object is subjected to the drop test, the pressure-sensing floor mat senses the pressure signal and feeds the signal back to the electric control box. The electric control box controls the high-speed camera to shoot and record the instantaneous deformation state of the object, so as to obtain detailed deformation data of the object during the drop process. At the same time, the utility model arranges a protective fence on the periphery of the tester body, and surrounds the tester body with a wire mesh and a circular frame, so as to avoid the rebound of debris when testing fragile objects and cause injuries to experimenters, thereby improving the safety performance of the drop tester. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.
[0016] Figure 1It is a schematic diagram of the overall structure of the drop tester described in the utility model.
[0017] Figure 2 It is a structural schematic diagram of the testing machine main body described in the utility model.
[0018] Figure 3 It is a structural schematic diagram of the protective fence structure described in the utility model.
[0019] In the figure:
[0020] 1. Test machine body; 11. Bottom plate; 12. High-speed camera; 13. Bracket; 14. Pressure-sensitive floor mat; 15. Object; 16. Support plate; 17. Slide rail; 18. Column; 19. Electric control box; 110. Support column; 2. Protective fence structure; 21. Circular frame; 22. Wire mesh; 23. Connecting plate. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0022] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0024] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] like Figures 1 to 3 As shown, the utility model provides a drop test machine, comprising a test machine body 1 and a protective fence structure 2 fixed on the front side and left and right sides of the test machine body 1;
[0026] The testing machine body 1 includes a base plate 11, a pressure-sensitive mat 14 fixed on the top surface of the base plate 11, and three groups of high-speed cameras 12 fixed on the front side wall and the left and right side walls of the base plate 11 and cooperating with the pressure-sensitive mat 14. A column 18 is also fixed on the upper surface of the base plate 11, and an electric-controlled slide is arranged on the front of the column 18. A horizontally arranged slide rail 17 is fixed on the electric-controlled slide. Two groups of support plates 16 are arranged at intervals on the slide rail 17, and an object 15 is held between the two groups of support plates 16.
[0027] Specifically, two sliders that move away from or toward each other are arranged inside the slide rail 17, and the upper surfaces of the sliders are fixedly connected to the bottom surface of the support plate 16. A support column 110 is fixed at the upper right corner of the top surface of the bottom plate 11, and an electric control box 19 is installed on the top surface of the support column 110, which is used to control the pressure-sensitive mat 14 and the high-speed camera 12. Brackets 13 are fixed to the front side and the left and right sides of the bottom plate 11, and the top surface of the bracket 13 is fixedly connected to the bottom surface of the high-speed camera 12 by screws. The shooting end of the high-speed camera 12 has a spacing of 10cm-25cm from the upper surface of the bottom plate 11, which is used to shoot the deformation posture of the object 15 when it falls. The pressure-sensitive mat 14 is located directly below the object 15, and a layer of cement board is adhered and fixed to the upper surface of the pressure-sensitive mat 14 by adhesive, which is used to restore the hardness of the object 15 when it falls.
[0028] In this embodiment, the protective fence structure 2 includes two connecting plates 23 fixed on the side walls of the base plate 11, and a circular frame 21 connected to the ends of the connecting plates 23, and a wire mesh 22 is welded inside the circular frame 21. The circular frames 21 and the wire mesh 22 on both sides of the base plate 11 are arranged symmetrically with the central axis of the base plate 11 as the base point. The test machine body 1 is surrounded by the wire mesh 22 and the circular frame 21 to avoid the rebound of debris when testing fragile objects 15 and cause injuries to the experimenter, thereby improving the safety performance of the drop tester.
[0029] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:
[0030] When the drop tester of the utility model is used, first, the electric control slide on the front side of the control column 18 is used to drive the slide rail 17 to rise to a specified height, and then the distance between the two groups of support plates 16 on the slide rail 17 is adjusted to be smaller than the width of the object 15, and the object 15 is placed between the two groups of support plates 16. After the preparation work is completed, the two groups of support plates 16 are controlled by the electric control box 19 to move away from each other, so that the object 15 can fall freely. When the object 15 falls onto the surface of the pressure sensing mat 14, the pressure sensing mat 14 senses the pressure signal of the object 15 and feeds the signal back to the electric control box 19. The electric control box 19 controls the high-speed camera 12 to shoot and record the instantaneous deformation state of the object 15; repeat the above operation, and the deformation degree of the object 15 at different heights can be tested by adjusting the height of the slide rail 17 on the column 18, so as to obtain detailed deformation data of the object 15 during the falling process.
[0031] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.
Claims
1. A drop tester, characterized in that: It comprises a testing machine body (1) and a protective fence structure (2) fixed on the front side and left and right sides of the testing machine body (1); The testing machine body (1) includes a bottom plate (11), a pressure-sensitive floor mat (14) fixed on the top surface of the bottom plate (11), and three groups of high-speed cameras (12) fixed on the front side wall and the left and right side walls of the bottom plate (11) and cooperating with the pressure-sensitive floor mat (14). A column (18) is also fixed on the upper surface of the bottom plate (11), and an electric-controlled slide is arranged on the front of the column (18), and a horizontally arranged slide rail (17) is fixed on the electric-controlled slide, and two groups of support plates (16) are arranged at intervals on the slide rail (17), and an object (15) is held between the two groups of support plates (16); The protective fence structure (2) comprises two connecting plates (23) fixed on the side walls of the bottom plate (11), and a circular frame (21) connected to the ends of the connecting plates (23), and a steel wire mesh (22) is welded inside the circular frame (21).
2. The drop tester according to claim 1, characterized in that: Two sliding blocks that move away from or toward each other are arranged inside the slide rail (17), and the upper surfaces of the sliding blocks are fixedly connected to the bottom surface of the support plate (16).
3. The drop tester according to claim 1, characterized in that: A support column (110) is fixed at the upper right corner of the top surface of the bottom plate (11), and an electric control box (19) is installed on the top surface of the support column (110) for controlling the pressure-sensitive floor mat (14) and the high-speed camera (12).
4. The drop tester according to claim 1, characterized in that: Brackets (13) are fixed to the front side and the left and right sides of the bottom plate (11), and the top surface of the bracket (13) is fixedly connected to the bottom surface of the high-speed camera (12) by screws.
5. The drop tester according to claim 1, characterized in that: The shooting ends of the high-speed cameras (12) are spaced 10 cm to 25 cm from the upper surface of the bottom plate (11) and are used to shoot the deformation posture of the object (15) when it falls.
6. The drop tester according to claim 1, characterized in that: The pressure-sensitive floor mat (14) is located below the object (15), and a layer of cement board is adhered and fixed to the upper surface of the pressure-sensitive floor mat (14) by means of an adhesive, so as to restore the hardness of the object (15) when it falls.
7. The drop tester according to claim 1, characterized in that: The circular frames (21) and the steel wire mesh (22) on both sides of the bottom plate (11) are arranged symmetrically with the central axis of the bottom plate (11) as a base point.