Cutting tool for target graph card
By designing ruler alignment and protective covers for the cutting tool, and adjusting the cutting depth with a screw, the problem of inaccurate cutting of the target pattern card was solved, achieving efficient and safe cutting results.
Patent Information
- Application Number
- CN202520146425.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing technology makes it difficult to accurately cut target charts, resulting in size asymmetry and white edges, which affects camera calibration results.
A cutting tool for target charts was designed, including a cutting table, a ruler, a slide rail, a slide table, and a blade holder. The ruler is used to align the edge of the chart, a protective cover is used to protect the blade, and an adjustable screw controls the cutting depth to ensure cutting accuracy.
It improves cutting accuracy, reduces the risk of accidental injury, increases work efficiency, avoids blade wear, and ensures cutting quality.
Smart Images
Figure CN223863839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tools, specifically a cutting tool for target charts. Background Technology
[0002] The target is a chart with specific color and dimensional accuracy used to calibrate the white balance and focal length of a camera. Its length and width are dimensionally accurate to + / -0.1mm, and it is required that there be no white border on the front.
[0003] Target charts are typically cut using a paper cutter or scissors. Since the dimensions are controlled manually by feel, it's difficult to achieve the required dimensional accuracy. After cutting, the left and right sides or top and bottom sides are often asymmetrical or non-parallel, and the cut targets often have white edges, affecting camera calibration. Therefore, a new target chart cutting tool is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a cutting tool for target charts to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting tool for target charts, including a cutting table, wherein two first connecting plates and two second connecting plates are respectively placed on the top of the cutting table, a first ruler is fixed between the two first connecting plates, and a second ruler is fixed between the two second connecting plates.
[0006] A target chart body is placed between the first and second rulers and the cutting table;
[0007] The first ruler and the second ruler are both fixed with a first slide rail on one side of their top. The first slide rail is slidably connected to a first slide table, and the first slide table is fixed with a second slide rail on one side.
[0008] The second slide rail groove is slidably connected to the second slide table, and a tool holder is fixed on one side of the second slide table. Both sides of the tool holder are connected to pressure plates by bolts, and a blade is held between the pressure plates and the tool holder.
[0009] Preferably, the cutting table is provided with a pushing component on one side to assist in moving the target card body;
[0010] Preferably, the first ruler, the second ruler, and the first slide are all fixed with limit screws on one side, and the outer side of the pressure plate is connected with a protective cover by bolts.
[0011] Preferably, the blade is tilted, and the tilt angle of the blade is 0-45°.
[0012] Preferably, the tool holder has a limiting groove inside, and a screw that is rotatably connected to one side of the first slide is threaded onto one side of the tool holder.
[0013] Preferably, the screw is fitted with a spring on its outer side, and the two sides of the spring are respectively connected to the limiting groove and one side of the first slide.
[0014] Preferably, the screw is threaded to the outside of a nut located at the top of the tool holder.
[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0016] The protective cover effectively shields and protects the blade during the cutting process, reducing the risk of accidental injury to operators. Because the first ruler is aligned with the inner frame of the target card and presses down on the target card, it ensures that the cutting can proceed along the predetermined lines, improving the accuracy of the cutting.
[0017] By adjusting the screw, the depth of cut of the blade when cutting the target card body can be precisely controlled. The process of loosening the locking nut, adjusting the screw, and re-locking the nut is relatively simple and intuitive, without the need for complicated tools or techniques. This allows operators to quickly and easily adjust the cutting depth, improve work efficiency, and control the cutting depth to avoid excessive blade wear caused by cutting too deep or too shallow. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the external structure of the present utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the protective cover of this utility model;
[0021] Figure 3 This is a schematic diagram of the main body of the target card of this utility model;
[0022] Figure 4 This is a schematic diagram of the blade structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure at the blade angle of this utility model;
[0024] Figure 6This is a schematic diagram of the spring structure of this utility model.
[0025] Explanation of reference numerals in the attached drawings: 1. Cutting table; 2. Target pattern body; 4. First ruler; 5. Limiting screw; 7. First connecting plate; 8. Second connecting plate; 9. Second ruler; 10. First slide rail; 11. First slide table; 12. Second slide table; 13. Second slide rail; 14. Screw; 15. Protective cover; 17. Blade; 18. Blade holder; 19. Pressure plate; 20. Limiting groove; 21. Spring; 22. Nut. Detailed Implementation
[0026] 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.
[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example
[0028] Please see Figure 1-6 This utility model provides a technical solution: a target card cutting tool, including a cutting table 1, with two first connecting plates 7 and two second connecting plates 8 respectively placed on the top of the cutting table 1. The target card body 2 is placed on the top of the cutting table 1, and a first ruler 4 is aligned with the inner frame line of the target card body 2, pressing down the target card body 2. A first ruler 4 is fixed between the two first connecting plates 7, and a second ruler 9 is fixed between the two second connecting plates 8. The target card body 2 is placed between the first ruler 4 and the second ruler 9 and the cutting table 1. A first slide rail 10 is fixed to one side of the top of both the first ruler 4 and the second ruler 9. A first slide table 11 is slidably connected to the track groove of the first slide rail 10, and a second slide rail 13 is fixed to one side of the first slide table 11.
[0029] The second slide rail 13 is slidably connected to the second slide table 12. A blade holder 18 is fixed on one side of the second slide table 12. Pressure plates 19 are bolted to both sides of the blade holder 18. A blade 17 is held between the pressure plate 19 and the blade holder 18. Pulling the protective cover 15 on the right side moves the blade holder 18 to the right, so that the tip of the blade 17 is located on the right side of the target card body 2. Then, the protective cover 15 is pressed down, and the protective cover 15 pushes the blade holder 18 and the blade 17 downward, so that the spring 21 is compressed. Then, the protective cover 15 is pulled to the left, so that the protective cover 15 moves the blade 17 across one side of the target card body 2. At this time, the blade 17 cuts the target card body 2.
[0030] Limiting screws 5 are fixed on one side of the first ruler 4, the second ruler 9, and the first slide 11. The limiting screws 5 are used to limit the sliding position of the first slide 11 or the second slide 12. A protective cover 15 is bolted to the outside of the pressure plate 19. The blade 17 is tilted with an inclination angle of 0-45°. A limiting groove 20 is opened inside the blade holder 18. A screw 14 is threaded to one side of the blade holder 18 and rotatedly connected to one side of the first slide 11. The target card body 2 is placed at the bottom of the second ruler 9. By repeating the above steps, the outer white edge of the target card body 2 can be cut.
[0031] A spring 21 is sleeved on the outside of the screw 14. The two sides of the spring 21 are respectively connected to the limiting groove 20 and one side of the first slide 11. A nut 22 located on the top of the tool holder 18 is threadedly connected to the outside of the screw 14. Rotating the nut 22 makes the nut 22 threadedly connected to the screw 14. Rotating the adjusting screw 14 makes the tool holder 18 move downward, shortening the downward pressing distance of the tool holder 18, that is, reducing the cutting depth of the blade 17. Rotating the adjusting screw 14 makes the tool holder 18 move upward, increasing the downward pressing distance of the tool holder 18, that is, increasing the cutting depth of the blade 17.
[0032] Working principle: When it is necessary to cut the target card body 2, simply place the target card body 2 on the top of the cutting table 1, align the position of the first ruler 4 with the inner frame line of the target card body 2, and press down the target card body 2 at the same time.
[0033] Pull the protective cover 15 to the right to move the blade holder 18 to the right, so that the tip of the blade 17 is located on the right side of the target card body 2. Then press the protective cover 15 down, and the protective cover 15 pushes the blade holder 18 and the blade 17 down, so that the spring 21 is compressed. Then pull the protective cover 15 to the left, so that the protective cover 15 drives the blade 17 to slide past one side of the target card body 2. At this time, the blade 17 cuts the target card body 2.
[0034] Then place the target card body 2 at the bottom of the second ruler 9 and repeat the above steps to trim the outer white edge of the target card body 2.
[0035] When adjusting the depth of cut of the blade 17 in the target drawing body 2, loosen the locking nut 22 and rotate the adjusting screw 14 to move the blade holder 18 downward, shortening the downward pressing distance of the blade holder 18, thus reducing the depth of cut of the blade 17. Rotating the adjusting screw 14 moves the blade holder 18 upward, increasing the downward pressing distance of the blade holder 18, thus increasing the depth of cut of the blade 17. After adjustment, tighten the locking nut 22 to lock the screw 14.
[0036] In summary, through the design of the protective cover 15, the blade 17 is effectively shielded and protected during the cutting process, reducing the risk of accidental injury to the operator. Since the first ruler 4 is aligned with the inner frame line of the target card body 2 and presses down on the target card body 2, it ensures that the cutting can be carried out along the predetermined line, thus improving the cutting accuracy.
[0037] By adjusting the screw 14, the depth of cut of the blade 17 when cutting the target card body 2 can be precisely controlled. The process of loosening the locking nut 22, adjusting the screw 14, and re-locking the nut 22 is relatively simple and intuitive, without the need for complicated tools or techniques. This allows the operator to quickly and easily adjust the cutting depth, improve work efficiency, and control the cutting depth, thus avoiding excessive wear of the blade 17 due to cutting too deep or too shallow.
[0038] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A cutting tool for target charts, comprising a cutting table (1), characterized in that: The cutting table (1) has two first connecting plates (7) and two second connecting plates (8) respectively placed on its top. A first ruler (4) is fixed between the two first connecting plates (7), and a second ruler (9) is fixed between the two second connecting plates (8). The target card body (2) is placed between the first ruler (4) and the second ruler (9) and the cutting table (1); The first ruler (4) and the second ruler (9) are both fixed with a first slide rail (10) on one side of the top. The first slide rail (10) is slidably connected to a first slide table (11) in the track groove. The first slide table (11) is fixed with a second slide rail (13) on one side. The second slide rail (13) is slidably connected to the second slide table (12). A knife holder (18) is fixed on one side of the second slide table (12). Both sides of the knife holder (18) are connected to pressure plates (19) by bolts. A blade (17) is held between the pressure plate (19) and the knife holder (18).
2. The target image card cutting tool according to claim 1, characterized in that: Limit screws (5) are fixed on one side of the first ruler (4), the second ruler (9) and the first slide (11), and a protective cover (15) is bolted to the outside of the pressure plate (19).
3. The target image card cutting tool according to claim 1, characterized in that: The blade (17) is inclined, and the inclination angle of the blade (17) is 0-45°.
4. The target image card cutting tool according to claim 1, characterized in that: The tool holder (18) has a limiting groove (20) inside, and a screw (14) is threadedly connected to one side of the tool holder (18) and rotatedly connected to one side of the first slide (11).
5. A target image card cutting tool according to claim 4, characterized in that: A spring (21) is sleeved on the outside of the screw (14), and the two sides of the spring (21) are respectively connected to the limiting groove (20) and one side of the first slide (11).
6. A target image card cutting tool according to claim 5, characterized in that: The screw (14) is threaded to the outside with a nut (22) located on top of the tool holder (18).