A circular knife with a self-sharpening device

Abstract

The utility model discloses a circular knife with a self-grinding device, comprising a circular knife body, a driving motor and a workbench, wherein the circular knife body is fixedly connected after being penetrated by the rotating shaft of the driving motor, and the driving motor is fixedly mounted on the workbench, and further comprising a grinding frame, which is fixedly mounted on the workbench, and one end of the circular knife body is inserted into the grinding frame. The circular knife with a self-grinding device is threadedly connected between a threaded rod and a fixed outer frame, and the threaded rod pushes the grinding end head toward the circular knife body while rotating, until the grinding end head contacts the circular knife body to achieve the grinding effect, and the debris powder generated during the grinding process falls on the inclined plate, and the debris powder moves toward the air suction port, and the fan generates wind force to extract and collect the debris powder, so as to avoid the debris powder affecting the cutting of the circular knife body.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knife processing, in particular to a circular knife with a self-grinding device. Background Art

[0002] As a commonly used die-cutting tool, a circular knife is widely used in cutting textiles. When the circular knife is used to continuously cut textiles, the blade of the circular knife will wear out during the continuous cutting. When the blade of the circular knife is no longer sharp, the cutting effect of the textile will deteriorate. Therefore, in the existing technology, the circular knife is quickly disassembled and replaced with a new circular knife for cutting.

[0003] However, despite the rapid disassembly and installation of the circular knife, the work of cutting the textiles will still be interrupted, affecting the cutting of the textiles. Utility Model Content

[0004] The utility model aims to provide a circular knife with a self-sharpening device to solve the problem in the background art that the rapid disassembly and assembly of the circular knife will still interrupt the cutting of the textiles, thus affecting the cutting of the textiles.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circular knife with a self-grinding device, comprising a circular knife body, a driving motor and a workbench, wherein the circular knife body is fixedly connected after being penetrated by the rotating shaft of the driving motor, and the driving motor is fixedly installed on the workbench, and further comprising a grinding frame, wherein the grinding frame is fixedly installed on the workbench, and one end of the circular knife body is inserted into the grinding frame;

[0006] The grinding frame includes a fixed outer frame, a movable platform, a threaded rod, a guide rod and a grinding end. The movable platform is provided on the inner side of the fixed outer frame, and a threaded rod is provided on the outer side of the movable platform. The threaded rod passes through the fixed outer frame and is threadedly connected to the fixed outer frame. Guide rods are provided on both sides of the threaded rod, and the guide rods are fixedly connected to the movable platform. A grinding end is fixedly connected to one end of the movable platform away from the threaded rod, and the grinding end is tilted according to the angle of the blade of the circular knife body.

[0007] Preferably, the polishing frame further includes an inclined plate and an air suction port, the inclined plate is fixedly connected to the bottom end of the movable platform, and an air suction port is provided above the inclined plate.

[0008] Preferably, the air suction port is connected to the fan through the tube body.

[0009] Preferably, the tube body on the fan is designed as a bellows.

[0010] Preferably, the inclined plate is located below the circular knife body, and the inclined plate is inclined toward the air suction port.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model discloses a circular knife with a self-grinding device. By rotating a threaded rod, the threaded rod drives a grinding end head to approach a blade of a circular knife body. When the circular knife body is rotating to cut, the grinding end head grinds the blade of the circular knife body synchronously, without affecting the cutting work of the circular knife body on textiles.

[0013] The debris and powder generated when the grinding end grinds the blade of the circular knife body falls on the inclined plate, and falls along the inclined plate to be sucked and collected by the suction port, so as to prevent the debris and powder from affecting the cutting work of the circular knife body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A top view of the utility model as a whole;

[0015] Figure 2 It is a cross-sectional view of the grinding frame of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the grinding frame of the utility model.

[0017] In the figure: 1. circular knife body; 2. driving motor; 3. working table; 4. grinding frame; 41. fixed outer frame; 42. moving table; 43. threaded rod; 44. guide rod; 45. grinding end; 46. inclined plate; 47. air suction port; 5. fan. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3A circular knife with a self-grinding device comprises a circular knife body 1, a driving motor 2 and a workbench 3. The circular knife body 1 is fixedly connected after being penetrated by the rotating shaft of the driving motor 2. The driving motor 2 is fixedly installed on the workbench 3. The circular knife body 1 also comprises a grinding frame 4. The grinding frame 4 is fixedly installed on the workbench 3, and one end of the circular knife body 1 is inserted in the grinding frame 4. The driving motor 2 drives the circular knife body 1 to rotate to cut the textile. The grinding frame 4 comprises a fixed outer frame 41, a moving platform 42, a threaded rod 43, a guide rod 44 and a grinding end 45. The inner side of the fixed outer frame 41 is provided with a moving platform 42, and the outer side of the moving platform 42 is provided with a threaded rod 43. The threaded rod 43 The threaded rod 43 penetrates the fixed outer frame 41 and is threadedly connected to the fixed outer frame 41. Guide rods 44 are provided on both sides of the threaded rod 43. The guide rods 44 are fixedly connected to the movable platform 42. A grinding end 45 is fixedly connected to the end of the movable platform 42 away from the threaded rod 43, and the grinding end 45 is tilted according to the angle of the blade of the circular knife body 1. When the blade of the circular knife body 1 needs to be grinded, the threaded rod 43 is rotated. Through the threaded connection between the threaded rod 43 and the fixed outer frame 41, the threaded rod 43 pushes the grinding end 45 toward the circular knife body 1 while rotating, until the grinding end 45 contacts the circular knife body 1 to achieve the grinding effect.

[0020] Furthermore, the polishing frame 4 also includes an inclined plate 46 and an air suction port 47 . The inclined plate 46 is fixedly connected to the bottom end of the movable platform 42 , and an air suction port 47 is provided above the inclined plate 46 .

[0021] Furthermore, the air suction port 47 is connected to the fan 5 through the tube body, and the fan 5 generates wind force to extract and collect the debris and powder.

[0022] Furthermore, the tube body on the fan 5 is designed as a bellows, and the tube body can achieve a telescopic effect when the grinding end 45 is close to the circular knife body 1.

[0023] Furthermore, the inclined plate 46 is located below the circular knife body 1 , and the inclined plate 46 is inclined toward the air suction port 47 , so that the debris and powder move toward the air suction port 47 .

[0024] Working principle: The utility model is a circular knife with a self-grinding device. When in use, the driving motor 2 drives the circular knife body 1 to rotate to cut the textile. When the blade of the circular knife body 1 needs to be sharpened, the threaded rod 43 is rotated. Through the threaded connection between the threaded rod 43 and the fixed outer frame 41, the threaded rod 43 pushes the grinding end 45 toward the circular knife body 1 while rotating, until the grinding end 45 contacts the circular knife body 1 to achieve the grinding effect. The debris powder generated during the grinding process falls on the inclined plate 46, and the debris powder moves toward the air suction port 47. The fan 5 generates wind force to extract and collect the debris powder to avoid the debris powder affecting the cutting of the circular knife body 1.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circular knife with a self-grinding device, comprising a circular knife body (1), a drive motor (2) and a workbench (3), wherein the circular knife body (1) is penetrated by a rotating shaft of the drive motor (2) and then fixedly connected, and the drive motor (2) is fixedly mounted on the workbench (3), characterized in that: It also comprises a grinding frame (4), wherein the grinding frame (4) is fixedly mounted on the workbench (3), and one end of the circular knife body (1) is inserted into the grinding frame (4); The grinding frame (4) comprises a fixed outer frame (41), a movable platform (42), a threaded rod (43), a guide rod (44) and a grinding end head (45); the movable platform (42) is provided on the inner side of the fixed outer frame (41); the threaded rod (43) is provided on the outer side of the movable platform (42); the threaded rod (43) passes through the fixed outer frame (41) and is threadedly connected to the fixed outer frame (41); guide rods (44) are provided on both sides of the threaded rod (43); the guide rods (44) are fixedly connected to the movable platform (42); the end of the movable platform (42) away from the threaded rod (43) is fixedly connected to the grinding end head (45); and the grinding end head (45) is tilted according to the angle of the blade of the circular knife body (1).

2. A circular knife with a self-sharpening device according to claim 1, characterized in that: The polishing frame (4) further comprises an inclined plate (46) and an air suction port (47); the inclined plate (46) is fixedly connected to the bottom end of the movable platform (42); and the air suction port (47) is provided above the inclined plate (46).

3. A circular knife with a self-sharpening device according to claim 2, characterized in that: The air suction port (47) is connected to the fan (5) via the tube body.

4. A circular knife with a self-sharpening device according to claim 3, characterized in that: The tube body on the fan (5) is designed as a bellows.

5. The circular knife with a self-sharpening device according to claim 2, characterized in that: The inclined plate (46) is located below the circular knife body (1), and the inclined plate (46) is inclined in the direction of the air suction port (47).

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