Tool sharpness testing device

Abstract

The utility model relates to the technical field of kitchen cutter detection, in particular to a cutter sharpness testing device, which comprises a workbench and two groups of testing components, the workbench is provided with two groups of symmetrically arranged testing components, and each testing component comprises a lifting component, a pressure sensor and a clamping component. According to the cutter sharpness testing device, according to a traditional cutter sharpness test, a worker holds a cutter by hand for cutting and judges by means of subjective feeling and observation, the requirement for the operation level of an operator is high, and subjective factors easily interfere with a test result. According to the utility model, the special test assembly is arranged, the cutter is fixed on the clamping assembly, and the lifting assembly is used for controlling the lifting action of the cutter, so that the whole test process realizes standardized and mechanical operation.

Description

Technical Field

[0001] This utility model relates to the field of kitchen knife testing technology, specifically a knife sharpness testing device. Background Technology

[0002] Knife sharpness testing is an important part of evaluating the cutting performance of kitchen knives. The traditional testing method involves staff holding the knife and cutting paper, tomatoes, or other materials, observing the cut surface and feeling the resistance to judge the sharpness. This process requires a high level of skill from the operator, and subjective factors can easily affect the test results. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a tool sharpness testing device.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool sharpness testing device, comprising a worktable and testing components. Two sets of symmetrically arranged testing components are disposed on the worktable. Each testing component includes a lifting assembly, a pressure sensor, and a clamping assembly. The lifting assembly comprises an inverted L-shaped bracket, a lifting mechanism, and a lifting plate. The bracket is fixed to the worktable below. The lifting mechanism penetrates the top wall of the bracket and connects to the lifting plate. The pressure sensor is also disposed below the lifting plate. The clamping assembly includes a base, a threaded rod, a slider, and a clamping plate. The base is also disposed below the pressure sensor. A groove is also disposed below the base. The threaded rod and two sets of symmetrically arranged sliders are disposed within the groove. The clamping plate is also disposed below the sliders. The threaded rod penetrates the base and connects to a handle.

[0007] To facilitate stable clamping of the cutting tool, the present invention is improved by including a top plate and a bottom plate in the clamping plate. The top plate is connected to the slider above, and the bottom plate is arranged symmetrically on both sides below the top plate.

[0008] Preferably, a friction pad is also provided on the side of the clamp plate near the center of the slide groove.

[0009] Preferably, the end of the clamp plate away from the friction pad is also provided with an inclined surface.

[0010] To facilitate stable driving of the handle, this utility model is improved by providing friction texture on the handle.

[0011] Preferably, the lifting device is a hydraulic cylinder, and the lifting plate is also provided with a guide rod that penetrates the top wall of the support.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a knife sharpness testing device, which has the following beneficial effects:

[0014] This knife sharpness testing device addresses the traditional method of knife sharpness testing, which relies on operators holding the knife and making cuts, judging the sharpness based on subjective feeling and observation. This method demands a high level of operator skill and is susceptible to subjective factors interfering with the test results. In contrast, this invention uses a specialized testing component to fix the knife to a clamping assembly and utilizes a lifting assembly to control the knife's movement. This standardizes and mechanizes the entire testing process.

[0015] A pressure sensor is installed below the lifting plate in the testing assembly. When the blade cuts the test material (such as paper, tomatoes, etc.), the pressure sensor can accurately measure the resistance encountered by the blade in real time and feed back the pressure data. Operators can use this accurate data to judge the sharpness of the blade. Compared with the traditional method of relying solely on the operator's subjective feeling of resistance, this quantitative data feedback is more scientific and reliable, and can analyze the performance of the blade in cutting different materials in more detail, further improving the accuracy of the sharpness test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a bottom view of the structural testing component of this utility model;

[0018] Figure 3 This is a partial bottom view of the structure of this utility model;

[0019] Figure 4 The structure of this utility model Figure 3 A magnified view of a portion of the image.

[0020] In the diagram: 1. Workbench; 2. Pressure sensor; 3. Bracket; 4. Lifter; 5. Lifting plate; 6. Base; 7. Threaded screw; 8. Slider; 9. Handle; 10. Top plate; 11. Bottom plate; 12. Friction pad; 13. Inclined surface; 14. Friction pattern; 15. Guide rod. 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] Please see Figure 1-4 A tool sharpness testing device includes a workbench 1 and testing components. Two sets of symmetrically arranged testing components are mounted on the workbench 1. Each testing component includes a lifting assembly, a pressure sensor 2, and a clamping assembly. The lifting assembly comprises an inverted L-shaped bracket 3, a lifter 4, and a lifting plate 5. The bracket 3 is fixed to the workbench 1 at its lower end. The lifter 4 penetrates the top wall of the bracket 3 and connects to the lifting plate 5. The pressure sensor 2 is also located below the lifting plate 5. The clamping assembly includes a base 6, threaded rods 7, sliders 8, and a clamping plate. The base 6 is located below the pressure sensor 2. A sliding groove is located below the base 6. Threaded rods 7 and two sets of symmetrically arranged sliders 8 are located within the sliding groove. The clamping plate is located below the sliders 8. The threaded rods 7 penetrate the base 6 and connect to a handle 9.

[0023] The workbench 1 provides stable support for the bracket 3, and the bracket 3 provides stable support for the lifting device 4. The lifting device drives the lifting plate 5 to rise and fall. A pressure sensor 2 connected to the base 6 is set below the lifting plate 5. The upper surface of the tool is attached to the base 6. Then the operator holds the part with friction texture 14 on the handle 9 and drives the positive and negative thread screws 7 to rotate by turning the handle 9. According to the thread direction and rotation direction of the positive and negative thread screws 7, the two sets of sliders 8 will move towards each other along the slide groove, thereby gradually clamping the tool with the clamping plate. During this process, the friction pad 12 on the clamping plate will make close contact with the surface of the tool, increasing the friction. Relying on the structure of the top plate 10 and the symmetrically arranged bottom plates 11 of the clamping plate, the contact area with the tool is increased, thereby firmly fixing the tool in the clamping assembly. This ensures that the tool will not loosen or shift during subsequent testing, guaranteeing the accuracy and safety of the test. It should be noted that the height of the tool body is much greater than the height of the material being cut. According to the test requirements, select a suitable test material (such as paper, tomatoes, etc.) and place the test material on the workbench 1 below the blade of the corresponding tool. Ensure that the test material is placed stably and neatly, and within the area that the blade can normally cut. For example, if paper is used as the test material, it can be laid flat on the workbench 1 with the edges aligned to avoid wrinkles or curling, so that the blade can cut into the paper evenly when it descends to cut. If tomatoes are used as the test material, the tomatoes are placed in a suitable container (such as a small tray to prevent juice from spilling and soiling the workbench 1), placed on the workbench 1 and fixed in position to ensure that the tomatoes are directly under the blade and will not roll around during the cutting process, in preparation for the next cutting test.

[0024] Start the lifting device 4 (hydraulic cylinder). By controlling the extension and retraction of the hydraulic cylinder, drive the lifting plate 5 to move downward along the guide rod 15, thereby causing the cutter fixed on the clamping assembly to descend synchronously, so that the cutter blade gradually approaches and contacts the test material. After the cutter contacts the test material, continue to control the descent of the lifting plate 5, and the cutter begins to cut into the test material, simulating the cutting action of the cutter in actual use;

[0025] During the cutting process of the blade into the test material, the pressure sensor 2 located below the lifting plate 5 functions in real time. It accurately measures the resistance encountered by the blade and transmits this pressure data to a connected display device (such as an external display screen, data logger, etc., for the operator to view and record data). The operator can observe the changes in pressure data in real time and analyze the ease with which the blade cuts into the material based on the pressure magnitude and trend. For example, if the blade is sharp, the resistance value measured by the pressure sensor 2 is relatively small when cutting into the material, and the pressure change is relatively stable as the blade cuts in smoothly. Conversely, if the blade is dull, there may be greater resistance at the beginning of the cut, the pressure value rises rapidly, and fluctuates greatly during the cutting process. Through this accurate quantitative data feedback, the sharpness of the blade can be judged more scientifically and objectively. Compared with the traditional method of relying on the operator's subjective feeling of resistance, this greatly improves the accuracy and reliability of the test.

[0026] In actual use, the end of the clamping plate away from the friction pad 12 is also provided with an inclined surface 13 to prevent the material height from being too high, which would cause the equipment to stop after the clamping plate contacts the material.

[0027] In this embodiment, the lifting device 4 uses a stable hydraulic cylinder, and the lifting plate 5 is also provided with a guide rod 15 that penetrates the top wall of the support 3 to ensure the stability of the movement of the lifting plate 5.

[0028] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0029] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[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.

Claims

1. A tool sharpness testing device, comprising a worktable (1) and testing components, characterized in that: Two sets of symmetrically arranged test components are provided on the workbench (1). The test components include a lifting component, a pressure sensor (2), and a clamping component. The lifting component includes an inverted L-shaped bracket (3), a lifter (4), and a lifting plate (5). The bracket (3) is fixed to the workbench (1) below. The lifter (4) passes through the top wall of the bracket (3) and is connected to the lifting plate (5). The pressure sensor (2) is also provided below the lifting plate (5). The clamping component includes a base (6), a screw rod (7), a slider (8), and a clamping plate. The base (6) is also provided below the pressure sensor (2). A sliding groove is also provided below the base (6). The screw rod (7) and two sets of symmetrically arranged sliders (8) are provided in the sliding groove. The clamping plate is also provided below the sliders (8). The screw rod (7) passes through the base (6) and is connected to the handle (9).

2. The tool sharpness testing device according to claim 1, characterized in that: The clamping plate includes a top plate (10) and a bottom plate (11). The top plate (10) is connected to the slider (8) above, and the bottom plate (11) is arranged symmetrically on the left and right sides below the top plate (10).

3. The tool sharpness testing device according to claim 2, characterized in that: A friction pad (12) is also provided on the side of the clamp plate near the center of the slide groove.

4. The tool sharpness testing device according to claim 3, characterized in that: The clamping plate is also provided with an inclined surface (13) at the end away from the friction pad (12).

5. The tool sharpness testing device according to claim 4, characterized in that: The handle (9) is provided with friction texture (14).

6. The tool sharpness testing device according to claim 5, characterized in that: The lifting device (4) uses a hydraulic cylinder, and the lifting plate (5) is also provided with a guide rod (15) that penetrates the top wall of the support (3).

Images