A circular blade sharpener
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING JINYU CUTTING TOOLS MFR CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]现有的打磨方式通常是通过电动磨刀机进行打磨,但是对圆形刀片进行打磨时,需要在打磨时旋转刀片,导致需要反复对刀片进行夹持固定,不仅操作繁琐,同时进行圆形刀片打磨面的均匀性,影响刀片切割的效果
[0020]将圆形刀片放置在底板和打磨端表面,通过旋转单元将刀片夹持固定,然后在驱动电机的驱动下底板带动圆形刀片高速旋转,接着通过打磨单元与圆形刀片的外侧表面贴合,对圆形刀片进行打磨,操作简单,同时能够对圆形刀片的表面进行均匀打磨。
Smart Images

Figure CN224601189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circular blades, and more particularly to a circular blade grinder. Background Technology
[0002] Circular blades are round blades, usually with a central hole for easy installation on mechanical equipment. They are required to have minimal cutting resistance and maximum wear resistance. Circular blades are widely used in various industries such as ceramics, printing machinery, papermaking, cardboard boxes, forestry, rubber, plastics, food machinery, textiles, electrical appliances, light industrial machinery, and aluminum foil. During long-term use, circular blades need to be sharpened using appropriate sharpening equipment.
[0003] Existing grinding methods typically involve using an electric grinder. However, when grinding round blades, the blade needs to be rotated during grinding, requiring repeated clamping and fixing of the blade. This is not only cumbersome but also affects the uniformity of the grinding surface of the round blade, impacting the cutting effect. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the current circular blade grinder, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a circular blade grinder, which solves the problem that "existing grinding methods usually involve grinding with an electric grinder, but when grinding circular blades, the blade needs to be rotated during grinding, which requires repeated clamping and fixing of the blade, which is not only cumbersome to operate, but also affects the uniformity of the grinding surface of the circular blade and the cutting effect of the blade".
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A circular blade sharpener, comprising:
[0009] The workbench has two sets of support plates fixedly connected to its lower side;
[0010] A rotating unit is disposed on the upper side of the worktable. The rotating unit includes a drive motor, a base plate, and a pressure plate, which are used to clamp and fix the blade and drive the blade to rotate.
[0011] A grinding unit is disposed on one side of the rotating unit and mounted on the upper surface of the worktable for grinding the blade.
[0012] In a preferred embodiment of the circular blade grinder of this utility model, the drive motor is disposed between two sets of support plates, the drive motor is fixedly connected to the worktable, the output end of the drive motor is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the worktable, the upper end of the rotating shaft is fixedly connected to a base plate, and a pressure plate is provided on the upper side of the base plate, a support frame is fixedly connected to the upper surface of the worktable, and a hydraulic rod is fixedly connected to the other end of the support frame, the output end of the hydraulic rod is fixedly connected to a circular plate, and the surface of the circular plate is rotatably connected to the pressure plate.
[0013] In a preferred embodiment of the circular blade grinder of this utility model, the lower surface of the base plate is fixedly connected to multiple sets of mounting seats, and each mounting seat is equipped with a ball bearing on its lower side. The lower surface of the multiple sets of ball bearings is movably connected to the worktable.
[0014] In a preferred embodiment of the circular blade grinder of this utility model, a friction pad is fixedly connected to the upper surface of the base plate, and another friction pad is fixedly connected to the lower surface of the pressure plate. Both sets of friction pads are made of rubber.
[0015] In a preferred embodiment of the circular blade sharpener described in this utility model, the sharpening unit includes an upper fixed plate fixedly connected to a worktable, and a threaded rod is threadedly connected to the inside of the upper fixed plate. One end of the threaded rod is rotatably connected to a slide, and a sharpening end is provided on the other side of the slide. A V-shaped groove is formed on the other side surface of the sharpening end, and a lifting assembly is provided inside the slide. The inner wall surface of the V-shaped groove is movably connected to the blade.
[0016] In a preferred embodiment of the circular blade grinder described in this utility model, one end of the threaded rod is fixedly connected to a circular plate two, and the surface of the circular plate two is rotatably connected to the slide block.
[0017] In a preferred embodiment of the circular blade grinder of this utility model, a limiting block is fixedly connected to the lower surface of the slide, a limiting groove is formed on the surface of the worktable, and the inner wall surface of the limiting groove is slidably connected to the limiting block.
[0018] In a preferred embodiment of the circular blade grinder of this utility model, the lifting assembly includes a screw rotatably connected to the slide, and a threaded sleeve is threadedly connected to the surface of the screw. One side of the threaded sleeve is fixedly connected to the grinding end, and both sides of the threaded sleeve are slidably connected to the inner wall surface of the slide.
[0019] The beneficial effects of this utility model are:
[0020] The circular blade is placed on the base plate and the grinding end surface. The blade is clamped and fixed by the rotating unit. Then, the base plate drives the circular blade to rotate at high speed under the drive of the drive motor. The grinding unit then contacts the outer surface of the circular blade to grind the blade. The operation is simple and can grind the surface of the circular blade evenly. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0022] Figure 1 This is a three-dimensional structural diagram of a circular blade grinder proposed in this utility model.
[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure cross-section;
[0024] Figure 3 for Figure 1 A rear view diagram of the three-dimensional structure;
[0025] Figure 4 This is a three-dimensional structural diagram of the lifting assembly.
[0026] In the diagram: 100, worktable; 101, support plate; 200, rotating unit; 201, drive motor; 202, rotating shaft; 203, base plate; 204, pressure plate; 205, circular plate one; 206, hydraulic rod; 207, support frame; 209, mounting base; 210, ball bearing; 211, friction pad; 300, grinding unit; 301, upper fixing plate; 302, threaded rod; 303, slide; 304, grinding end; 305, circular plate two; 306, limit block; 307, lifting assembly; 3071, threaded sleeve; 3072, screw; 308, limit groove. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0031] Example 1
[0032] Reference Figure 1-2 This is the first embodiment of the present invention, which provides a circular blade grinder, comprising:
[0033] The workbench 100 has two sets of support plates 101 fixedly connected to its lower side.
[0034] A rotating unit 200 is disposed on the upper side of the worktable 100. The rotating unit 200 includes a drive motor 201, a base plate 203 and a pressure plate 204, which are used to clamp and fix the blade and drive the blade to rotate.
[0035] The grinding unit 300 is located on one side of the rotating unit 200 and is mounted on the upper surface of the worktable 100 for grinding the blade.
[0036] In use, the circular blade is placed on the surface of the base plate 203 and the grinding end 304. The blade is clamped and fixed by the rotating unit 200. Then, the base plate 203 drives the circular blade to rotate at high speed under the drive of the drive motor 201. Then, the grinding unit 300 is attached to the outer surface of the circular blade to grind the circular blade. The operation is simple and can grind the surface of the circular blade evenly.
[0037] Example 2
[0038] Reference Figure 2-4This is the second embodiment of the present invention. Unlike the previous embodiment, the drive motor 201 is disposed between two sets of support plates 101. The drive motor 201 is fixedly connected to the worktable 100. The output shaft of the drive motor 201 is fixedly connected to a rotating shaft 202, and the rotating shaft 202 is rotatably connected to the worktable 100. The upper end of the rotating shaft 202 is fixedly connected to a base plate 203, and a pressure plate 204 is provided on the upper side of the base plate 203. A support frame 207 is fixedly connected to the upper surface of the worktable 100, and a hydraulic rod 206 is fixedly connected to the other end of the support frame 207. The output shaft of the hydraulic rod 206 is fixedly connected to a circular plate 205, and the surface of the circular plate 205 is rotatably connected to the pressure plate 204. The pressure plate 204 is pushed by the hydraulic rod 206, so that the pressure plate 204 clamps and fixes the blade on the surface of the base plate 203. Then, the drive motor 201 can drive the blade to rotate at high speed.
[0039] Furthermore, multiple sets of mounting seats 209 are fixedly connected to the lower surface of the base plate 203, and each mounting seat 209 is equipped with a ball bearing 210. The lower surface of the multiple sets of ball bearings 210 is movably connected to the worktable 100 to support the base plate 203 and reduce the friction of the base plate 203 rotation.
[0040] Furthermore, a friction pad 211 is fixedly connected to the upper surface of the base plate 203, and another friction pad 211 is fixedly connected to the lower surface of the pressure plate 204. Both sets of friction pads 211 are made of rubber material, which protects the surface of the clamped blade and prevents the blade from slipping during grinding.
[0041] The grinding unit 300 includes an upper fixed plate 301 fixedly connected to the worktable 100, and a threaded rod 302 is threadedly connected inside the upper fixed plate 301. One end of the threaded rod 302 is rotatably connected to a slide 303, and a grinding end 304 is provided on the other side of the slide 303. A V-shaped groove is opened on the other side surface of the grinding end 304. A lifting component 307 is provided inside the slide 303. The inner wall surface of the V-shaped groove is movably connected to the blade. Twisting the threaded rod 302 to rotate causes the slide 303 to push the grinding end 304 to move, enabling the grinding end 304 to grind circular blades with different inner diameters.
[0042] Furthermore, one end of the threaded rod 302 is fixedly connected to a circular plate 305, and the surface of the circular plate 305 is rotatably connected to the slide block 303, so that the threaded rod 302 will not fall off when rotating inside the slide block 303.
[0043] Furthermore, a limiting block 306 is fixedly connected to the lower surface of the slide 303, and a limiting groove 308 is formed on the surface of the worktable 100. The inner wall surface of the limiting groove 308 is slidably connected to the limiting block 306 to limit the slide 303.
[0044] Furthermore, the lifting assembly 307 includes a screw 3072 rotatably connected to the slide 303, and a threaded sleeve 3071 is threadedly connected to the surface of the screw 3072. One side surface of the threaded sleeve 3071 is fixedly connected to the grinding end 304, and both sides of the threaded sleeve 3071 are slidably connected to the inner wall surface of the slide 303, which can adjust the height of the grinding end 304 so that the V-groove of the grinding end 304 matches the circular blade.
[0045] In use, place the circular blade on the surface of the base plate 203, then activate the hydraulic rod 206 to push the circular plate 205 downwards. The pressure plate 204, rotatably connected to the circular plate 205, moves downwards to press the circular blade onto the surface of the base plate 203. Then, rotate the threaded rod 302. Under the limiting action of the limiting block 306, the circular plate 305, fixedly connected to the threaded rod 302, pushes the slide 303 toward the circular blade, causing the slide 303 to push the grinding end 304 to fit against the circular blade. At the same time, rotate the screw 3072, and the threaded sleeve threadedly connected to the screw 3072... 3071 drives the grinding end 304 to move up and down, so that the inner wall surface of the V-groove on the surface of the grinding end 304 fits against the two sides of the circular blade. Then, the power supply drives the drive motor 201 to drive the rotating shaft 202 to rotate. The base plate 203, which is fixedly connected to the rotating shaft 202, drives the circular blade to rotate at high speed. The mounting seat 209, which is fixedly connected to the base plate 203, drives the ball bearing 210 to roll at high speed on the surface of the worktable 100. At the same time, the pressure plate 204, which is in close contact with the circular blade, rotates on the surface of the circular plate 205, so that the circular blade rotates at high speed inside the V-groove for grinding.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A circular blade sharpener, characterized in that: include: A workbench (100) has two sets of support plates (101) fixedly connected to its lower side. A rotating unit (200) is disposed on the upper side of the worktable (100). The rotating unit (200) includes a drive motor (201), a base plate (203), and a pressure plate (204) for clamping and fixing the blade and driving the blade to rotate. A grinding unit (300) is disposed on one side of the rotating unit (200) and mounted on the upper surface of the worktable (100) for grinding the blade.
2. A circular blade grinder according to claim 1, characterized in that: The drive motor (201) is located between two sets of support plates (101). The drive motor (201) is fixedly connected to the worktable (100). The output end of the drive motor (201) is fixedly connected to a rotating shaft (202), and the rotating shaft (202) is rotatably connected to the worktable (100). The upper end of the rotating shaft (202) is fixedly connected to a base plate (203), and a pressure plate (204) is provided on the upper side of the base plate (203). A support frame (207) is fixedly connected to the upper surface of the worktable (100), and a hydraulic rod (206) is fixedly connected to the other end of the support frame (207). The output end of the hydraulic rod (206) is fixedly connected to a circular plate (205), and the surface of the circular plate (205) is rotatably connected to the pressure plate (204).
3. A circular blade grinder according to claim 2, characterized in that: The lower surface of the base plate (203) is fixedly connected to multiple sets of mounting seats (209), and each mounting seat (209) is equipped with a ball bearing (210) on its lower side. The lower surface of the multiple sets of ball bearings (210) is movably connected to the worktable (100).
4. A circular blade grinder according to claim 3, characterized in that: A friction pad (211) is fixedly connected to the upper surface of the base plate (203), and another friction pad (211) is fixedly connected to the lower surface of the pressure plate (204). Both sets of friction pads (211) are made of rubber.
5. A circular blade grinder according to claim 1, characterized in that: The grinding unit (300) includes an upper fixed plate (301) fixedly connected to the worktable (100), and a threaded rod (302) is threadedly connected inside the upper fixed plate (301). One end of the threaded rod (302) is rotatably connected to a slide (303), and a grinding end (304) is provided on the other side of the slide (303). A V-groove is opened on the other side surface of the grinding end (304), and a lifting assembly (307) is provided inside the slide (303).
6. A circular blade grinder according to claim 5, characterized in that: One end of the threaded rod (302) is fixedly connected to a circular plate (305), and the surface of the circular plate (305) is rotatably connected to the slide (303).
7. A circular blade grinder according to claim 6, characterized in that: The lower surface of the slide (303) is fixedly connected to a limiting block (306), and the surface of the worktable (100) is provided with a limiting groove (308), and the inner wall surface of the limiting groove (308) is slidably connected to the limiting block (306).
8. A circular blade grinder according to claim 7, characterized in that: The lifting assembly (307) includes a screw (3072) rotatably connected to the slide (303), and a threaded sleeve (3071) is threadedly connected to the surface of the screw (3072). One side surface of the threaded sleeve (3071) is fixedly connected to the grinding end (304), and both sides of the threaded sleeve (3071) are slidably connected to the inner wall surface of the slide (303).