Blade positioning device of multi-knife co-grinding knife grinder

Abstract

The utility model discloses a blade positioning device of a multi-blade co-grinding tool sharpener, which comprises a blade positioning plate and a positioning plate mounting bracket, the positioning surface of the blade positioning plate is a plane, the blade positioning plate is fixedly connected on a rotating shaft, the rotating shaft is rotatably supported on the positioning plate mounting bracket, and the positioning plate mounting bracket is fixedly connected with the blade positioning plate. A rotating shaft driving device is installed on the positioning plate installation support and is in transmission connection with the rotating shaft, a positioning angle limiting stopper is installed on the blade positioning plate, and the blade positioning plate determines the angle between the positioning face and the workbench face of the tool sharpener suction cup workbench through the positioning angle limiting stopper. And the angle between the positioning surface and the workbench surface of the tool sharpener sucker workbench corresponds to the angle of the inclined surface of the cutting edge of the straight knife blade to be ground. The blade positioning device of the multi-blade co-grinding tool sharpener can meet the positioning requirement that the inclined planes of the cutting edges of the straight blades which are installed in an overlapped mode are located on the same plane.

Description

Technical Field

[0001] The utility model relates to a lamellar straight knife grinding machine tool, in particular to a blade positioning device on a lamellar straight knife grinding machine tool for grinding multiple knives together. Background Art

[0002] The multi-blade co-grinding straight knife sharpening technology provides the possibility of high-efficiency processing of the bevel grinding of the cutting edge of multiple straight knife blades at the same time. In the conventional sheet straight knife sharpening machine, the side of the sheet straight knife to be ground, which forms the cutting edge, is adsorbed on the suction cup workbench. The cutting edge bevel is in a horizontal state due to the rotation of the suction cup workbench, and the grinding wheel of the sharpening machine grinds the cutting edge bevel. In this way, when the straight knife to be ground is installed and positioned on the suction cup workbench, it only needs to use the blade positioning device installed on one side of the suction cup workbench to make its cutting edge parallel to the length direction of the suction cup workbench. The structure of the positioning device is also very simple. It only needs to provide a positioning plane parallel to the length direction of the suction cup workbench on one side of the suction cup workbench. The cutting edge of the straight knife blade contacts the positioning plane to achieve the positioning requirements. In the multi-blade straight knife sharpening machine, the blades to be ground need to be installed overlapping with each other in the upper and lower directions, and it is necessary to ensure that the cutting edge bevels of the upper and lower overlapping blades to be ground are on the same plane. In this way, the blade positioning device on the conventional sheet straight knife sharpening machine will not be able to meet the required positioning requirements, and will not affect the realization of multi-blade straight knife sharpening. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a blade positioning device for a multi-blade grinding machine, which can meet the positioning requirement that the inclined surfaces of the cutting edges of the overlapping straight blades are on the same plane.

[0004] In order to solve the above technical problems, the utility model provides a blade positioning device for a multi-blade co-grinding knife sharpener, comprising a blade positioning plate and a positioning plate mounting bracket. The positioning surface of the blade positioning plate is a plane, and the blade positioning plate is fixedly connected to a rotating shaft, and the rotating shaft is rotatably supported on the positioning plate mounting bracket. A rotating shaft driving device is installed on the positioning plate mounting bracket, and the rotating shaft driving device is connected to the rotating shaft transmission. A positioning angle limiter is installed on the blade positioning plate, and the blade positioning plate determines the angle between the positioning surface and the table surface of the knife sharpener suction cup workbench through the positioning angle limiter.

[0005] After adopting the above technical solution, the blade positioning plate will be rotatably installed on one side of the suction cup workbench on the straight knife sharpening machine. When the straight knife blade to be ground needs to be installed and positioned, the shaft driving device rotates the blade positioning plate to move closer to the suction cup workbench through the shaft, and the final position of the blade positioning plate is determined by the positioning angle limiter. The positioning surface on the blade positioning plate is relative to the table surface of the suction cup workbench and maintains a certain angle. This angle value is the bevel angle of the cutting edge of the straight knife blade to be ground. The straight knife blades to be ground and overlapped with each other only need to be adjusted. The positioning can be easily completed by fitting the cutting edge bevel with the positioning surface of the blade positioning plate. At this time, the cutting edge bevels on the vertically overlapping straight knife blades will be on the same plane, thereby meeting the positioning requirement that the cutting edge bevels of the overlapping straight knife blades are on the same plane. After the installation, positioning and clamping of each straight knife blade are completed, the shaft driving device rotates the blade positioning plate in the opposite direction and leaves the suction cup workbench through the shaft. The suction cup workbench rotates so that the cutting edge bevels of each straight knife blade are in a horizontal state, and multi-tool grinding of the cutting edge bevels of each straight knife blade can be carried out.

[0006] In a preferred embodiment of the present invention, the shaft drive device is a rotary cylinder, the output shaft of which is connected to the shaft via a coupling. In this embodiment, the rotary cylinder drives the shaft via the coupling. Once the blade positioning plate's angle stopper contacts the suction cup worktable, the air pressure from the rotary cylinder presses the plate's angle stopper tightly against the suction cup worktable, maintaining the blade positioning plate's stable position during the blade installation and positioning process.

[0007] Another preferred embodiment of the present invention is to provide a shaft drive device at each end of the shaft. This embodiment can drive both ends of the shaft simultaneously, ensuring the stability of the blade positioning plate position, and is particularly suitable for applications where multiple blades are mounted along the length of the suction cup workbench.

[0008] In another preferred embodiment of the present invention, the positioning angle limiter is a member with a triangular cross section fixedly mounted on the blade positioning plate. In this embodiment, the triangular member is used as the positioning angle limiter, which has a stable structure and good positioning effect.

[0009] In a further preferred embodiment of the present invention, one side of the triangular-section member serves as a limiting surface for contacting the surface of the sharpener's suction cup worktable, while the other side of the triangular-section member is fixedly attached to the positioning surface. The angle α between these two sides corresponds to the angle of the bevel of the blade edge of a straight knife. With this embodiment, the angle between the plane contacting the positioning surface and the surface contacting the suction cup worktable surface represents the angle of the blade edge bevel to be sharpened. Blades with different bevel angles can be easily replaced by simply replacing the corresponding triangular-section member, providing ease of use.

[0010] In another preferred embodiment of the present invention, the positioning angle limiter is a positioning angle adjustment member screwed onto the blade positioning plate, with the lower end of the positioning angle adjustment member contacting the sharpener's suction cup worktable. This embodiment allows the angle between the blade positioning plate and the suction cup worktable to be instantly changed by rotating the positioning angle adjustment member, which is screwed onto the blade positioning plate. This allows for the positioning requirements of blades with varying cutting edge angles to be met at any time, making it particularly suitable for high-volume, low-volume production.

[0011] In another preferred embodiment of the present invention, the lower end of the positioning angle adjustment member is spherical. With this embodiment, the spherical lower end positioning angle adjustment member can ensure a certain correspondence between the adjustment rotation angle of the positioning angle adjustment member and the angle of the positioning surface on the blade positioning plate during the rotation adjustment process, thereby facilitating the adjustment of the positioning angle.

[0012] In a further preferred embodiment of the present invention, positioning angle limiters are respectively installed at both ends of the blade positioning plate in the length direction. With this embodiment, the consistency of the angular position of the blade positioning plate in the entire length direction can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The blade positioning device of the multi-blade co-sharpening machine of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a structural diagram of a specific embodiment of the blade positioning device of the multi-blade co-grinding knife sharpener of the utility model;

[0015] Figure 2 yes Figure 1 A cross-sectional view of the structure shown at position AA;

[0016] Figure 3 yes Figure 2 The structure shown is a schematic diagram of the structure in the positioning working state;

[0017] Figure 4 yes Figure 2 A schematic structural diagram of another embodiment of the positioning angle limiter in the structure shown.

[0018] In the figure: 1-rotating shaft drive device, 2-positioning angle limiter, 3-positioning plate mounting bracket, 4-blade positioning plate, 5-rotating shaft, 6-positioning surface, 7-suction cup workbench. DETAILED DESCRIPTION

[0019] exist Figure 1 and Figure 2In the blade positioning device of the multi-blade grinding machine shown, the positioning plate mounting bracket 3 is the supporting component of the entire blade positioning device. A rotating shaft 5 is rotatably supported on the positioning plate mounting bracket 3 by a bearing seat. The blade positioning plate 4 is fixedly connected to the rotating shaft 5. A rotating shaft driving device 1 that is transmission-connected to the rotating shaft 5 is installed on the positioning plate mounting bracket 3. The rotating shaft driving device 1 is separately arranged at both ends of the rotating shaft 5. The rotating shaft driving device 1 is preferably a rotary cylinder. The output shaft of the rotary cylinder is connected to the rotating shaft 5 through a coupling. The rotating shaft 5 can drive the blade positioning plate 4 to swing left and right and turn toward or away from the suction cup worktable 7 of the sharpener under the drive of the rotating shaft driving device 1.

[0020] The positioning surface 6 of the blade positioning plate 4 is a plane, which is the side of the blade positioning plate 4 facing the suction cup workbench 7. A positioning angle limiter 2 is installed on the blade positioning plate 4. The positioning angle limiter 2 is preferably installed at both ends of the blade positioning plate 4 in the length direction. Figure 3 When the shaft 5 is driven by the shaft driving device 1 to drive the blade positioning plate 4 to turn to the suction cup workbench 7 of the knife sharpener, the positioning angle limiter 2 limits the final position of the blade positioning plate 4. In this way, the blade positioning plate 4 determines the angle between the positioning surface 6 and the table surface of the suction cup workbench 7 in the knife sharpener through the positioning angle limiter 2. This angle corresponds to the bevel angle of the cutting edge of the straight knife blade to be sharpened. The straight knife blades to be sharpened and arranged on the suction cup workbench 7 and mounted on top of each other only need to align their cutting edge bevels with the bevel angle of the cutting edge. The positioning operation can be easily completed by fitting the positioning surfaces 6 of the blade positioning plate 4. After the positioned straight knife blades are clamped on the suction cup workbench 7 on the sharpener, the shaft driving device 1 drives the shaft 5 to drive the blade positioning plate 4 to move in the opposite direction and rotate away from the suction cup workbench 7 of the sharpener, thereby meeting the positioning requirement that the cutting edge bevels of the overlapping straight knife blades are on the same plane. The suction cup workbench 7 is then rotated to make the cutting edge bevels horizontal so that multi-blade grinding of the cutting edge bevels of the straight knife blades can be carried out.

[0021] like Figure 2 and Figure 3 As shown, the positioning angle limiter 2 is a component with a triangular cross-section fixedly mounted on the blade positioning plate 4. One side of the component with a triangular cross-section is a limiting surface that fits in contact with the table surface of the sharpener suction cup workbench 7, and the other side of the component with a triangular cross-section is fit and fixedly connected to the positioning surface 6. The angle α between the two side surfaces corresponds to the angle of the bevel of the straight knife edge.

[0022] The positioning angle limiter 2 may not be a member with a triangular cross section, but may be a member with a triangular cross section. Figure 4 The figure shows a positioning angle adjusting member screwed onto the blade positioning plate 4. The lower end of the positioning angle adjusting member is the part in contact with the sharpener suction cup workbench 7. The lower end of the positioning angle adjusting member is spherical.

[0023] The above only lists some preferred embodiments of the present invention, but the present invention is not limited thereto and many improvements and modifications can be made. As long as the improvements and modifications are made based on the basic principles of the present invention, they should be considered to fall within the scope of protection of the present invention.

Claims

1. A blade positioning device for a multi-blade sharpening machine, comprising a blade positioning plate (4) and a positioning plate mounting bracket (3), characterized in that: The positioning surface (6) of the blade positioning plate (4) is a plane. The blade positioning plate (4) is fixedly connected to a rotating shaft (5). The rotating shaft (5) is rotatably supported on a positioning plate mounting bracket (3). A rotating shaft driving device (1) is installed on the positioning plate mounting bracket (3). The rotating shaft driving device (1) is transmission-connected to the rotating shaft (5). A positioning angle limiter (2) is installed on the blade positioning plate (4). The blade positioning plate (4) determines the angle between the positioning surface (6) and the table top of the sharpener suction cup workbench through the positioning angle limiter (2).

2. The blade positioning device for a multi-blade sharpening machine according to claim 1, characterized in that: The rotating shaft driving device (1) is a rotating cylinder, and the output shaft of the rotating cylinder is connected to the rotating shaft (5) via a coupling.

3. The blade positioning device for a multi-blade co-sharpening machine according to claim 1 or 2, characterized in that: The rotating shaft driving devices (1) are respectively provided at both ends of the rotating shaft (5).

4. The blade positioning device for a multi-blade sharpening machine according to claim 1, characterized in that: The positioning angle limiter (2) is a component with a triangular cross section that is fixedly mounted on the blade positioning plate (4).

5. The blade positioning device for a multi-blade sharpening machine according to claim 4, characterized in that: One side surface of the component with a triangular cross section is a limiting surface that is in contact with the table surface of the sharpener suction cup workbench, and the other side surface of the component with a triangular cross section is in contact with the positioning surface (6), and the angle α between the two side surfaces corresponds to the angle of the straight knife edge bevel.

6. The blade positioning device for a multi-blade sharpening machine according to claim 1, characterized in that: The positioning angle limiter (2) is a positioning angle adjusting member screwed onto the blade positioning plate (4), and the lower end of the positioning angle adjusting member is a portion in contact with the sharpener suction cup workbench.

7. The blade positioning device for a multi-blade sharpening machine according to claim 6, characterized in that: The lower end of the positioning angle adjusting member is spherical.

8. The blade positioning device for a multi-blade co-sharpening machine according to claim 1, 4 or 6, characterized in that: Positioning angle limiters (2) are respectively installed at both ends of the blade positioning plate (4) in the length direction.

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