Knife sharpening angle adjusting mechanism for knife sharpener

Abstract

The utility model provides a knife sharpening angle adjusting mechanism for a knife sharpener, and relates to the technical field of knife sharpening equipment, the knife sharpening angle adjusting mechanism comprises a base, a clamping frame and a knife sharpening stone, the two sides of the base are respectively provided with a first sliding seat and a second sliding seat, and a fixing plate is installed between the tops of the first sliding seat and the second sliding seat; the top of the second sliding seat is provided with an angle adjusting mechanism matched with the fixing plate. The movable sleeve is screwed to move outwards, the clamping cylinder connected with the movable sleeve retreats from the range of the inclined groove in the other end of the connecting cylinder, limitation of the clamping cylinder to the rotating shaft is relieved, the rotating shaft can be rotated to drive the fixing plate to rotate to adjust the angle, and then the movable sleeve is screwed to move towards the interior of the connecting cylinder, so that the clamping cylinder enters the range of the inclined groove again. The inner wall of the inclined groove is used for extruding the clamping barrel to move towards the rotating shaft, and then the clamping barrel clamps the outer wall of the rotating shaft so that the position of the rotating shaft can be locked, and the cutter can be adjusted to the angle suitable for grinding and the position attached to the clamp.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpening equipment, in particular to an angle adjusting mechanism for a knife sharpening machine. Background Art

[0002] Cutting tools are essential tools in people's daily lives. When producing cutting tools, it is necessary to grind the cutting tools to make them sharp. The knife sharpening machine was originally called an end face knife sharpening machine, and its structure is mainly gantry type. It is mainly aimed at: knife sharpening centers, forestry industries, printing factories, paper and plastics, book printing centers, medium-sized knife sharpening workshops and other institutional enterprise users;

[0003] For example, a Chinese patent with the application number 202222370654.6 discloses a knife sharpening machine, which proposes that "place the cutting tool on the fixing frame for fixation, start the first motor, the output end of the first motor drives the grinding wheel to start rotating, start the moving mechanism, and the moving mechanism can drive the vertical frame to start moving on the base, so that the grinding wheel on the vertical frame follows the movement to grind the cutting tool on the fixing frame, and spray coolant on the cutting tool on the fixing frame through the cooling water tank to avoid damage to the cutting tool, thus solving the problem that when grinding the cutting tool, the staff holds the cutting tool by hand for grinding, so that the rotating grinding wheel is likely to cause harm to the staff". However, the position of the tool head of the above-mentioned knife sharpening machine cannot be adjusted greatly along with the position of the fixture, resulting in a very fixed sharpening surface of the knife sharpening machine, making it difficult to fit the position of the fixture. Therefore, the utility model proposes an angle adjusting mechanism for a knife sharpening machine to solve the above problems. Summary of the Utility Model

[0004] In view of the above problems, the utility model proposes an angle adjusting mechanism for a knife sharpening machine to solve the problem that the sharpening surface of the existing knife sharpening machine is fixed and it is difficult to fit the position of the fixture.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: an angle adjusting mechanism for a knife sharpening machine, including a base, a clamping frame and a sharpening stone. A clamping frame is provided on the top of the base, and the sharpening stone is fixed by a clamping mechanism on the clamping frame. A first sliding seat and a second sliding seat are respectively provided on both sides of the base, and a fixing plate is installed between the tops of the first sliding seat and the second sliding seat. An angle adjusting mechanism matching the fixing plate is provided on the top of the second sliding seat.

[0006] A further improvement lies in that: the angle adjustment mechanism includes a rotating shaft, a movable sleeve, a clamping cylinder and a connecting cylinder. A connecting cylinder is provided at the top of the second sliding seat. Rotating shafts are symmetrically connected to both sides of the fixing plate. One end of one of the rotating shafts penetrates the inside of the connecting cylinder. The outer side of the rotating shaft is sleeved with a movable sleeve. One end of the movable sleeve is connected with a clamping cylinder. The outer side of the movable sleeve is threadedly connected to one end inside the connecting cylinder through a threaded surface. An inclined groove is provided on the other side inside the connecting cylinder.

[0007] A further improvement lies in that: one end of the rotating shaft penetrates the clamping cylinder. A chamfer is provided at one end of the clamping cylinder. The inside of the inclined groove is in fit connection with the outer wall of the chamfer.

[0008] A further improvement lies in that: the fixing plate is composed of an upper clamping block and a lower clamping block. The upper clamping block is arranged on the top of the lower clamping block. First threaded rods are symmetrically provided on the top of the lower clamping block. The top ends of the first threaded rods penetrate the inside of the upper clamping block and are threadedly connected with nuts. Clamping grooves are provided on the inner sides of the upper clamping block and the lower clamping block.

[0009] A further improvement lies in that: a guide rod is provided on one side of the base. The bottom end of the second sliding seat is in sliding connection with the outer wall of the guide rod. A moving mechanism matching the first sliding seat is provided on the other side of the base.

[0010] A further improvement lies in that: the moving mechanism includes a motor and a lead screw. A slide rail is provided on the top of the base. One side of the first sliding seat is in sliding connection with the slide rail. The lead screw is rotatably connected to the other side of the base. One end of the lead screw penetrates the bottom end of the first sliding seat and is threadedly connected with it. A motor is installed on the outer side of the base. The output end of the motor is connected to one end of the lead screw.

[0011] A further improvement lies in that: the clamping mechanism includes a second threaded rod and a tensioning block. The second threaded rod is threadedly connected to one side of the clamping frame. One end of the second threaded rod is rotatably connected to the tensioning block. A cushion block is provided at the bottom of the clamping frame. A convex block is provided on the top of the cushion block. Adjacent cushion blocks are mutually snap-connected through the convex blocks.

[0012] The beneficial effects of the present utility model are as follows: By screwing the movable sleeve to move outward, the clamping cylinder connected to the movable sleeve is withdrawn from the range of the inclined groove at the other end of the connecting cylinder, and the restriction of the clamping cylinder on the rotating shaft is released. The rotating shaft can be rotated to drive the fixing plate to rotate and adjust the angle. Then, screw the movable sleeve to move inside the connecting cylinder, so that the clamping cylinder re-enters the range of the inclined groove. The inner wall of the inclined groove is used to squeeze the clamping cylinder to move towards the rotating shaft, and then the clamping cylinder clamps the outer wall of the rotating shaft to lock the position of the rotating shaft, and the tool is adjusted to an angle suitable for grinding and fits the position of the fixture. Description of the Drawings

[0013] Figure 1 This is the front view of the present utility model;

[0014] Figure 2 This is the side view of the present utility model;

[0015] Figure 3 This is the schematic structural view of the angle adjustment mechanism of the present utility model;

[0016] Figure 4 This is the schematic structural view of the fixing plate of the present utility model.

[0017] Wherein: 1. Base; 2. Clamping frame; 3. Grinding stone; 4. Slide rail; 5. First sliding seat; 6. Second sliding seat; 7. Fixing plate; 8. Rotating shaft; 9. Movable sleeve; 10. Clamping cylinder; 11. Connecting cylinder; 12. Threaded surface; 13. Inclined groove; 14. Upper clamping block; 15. Lower clamping block; 16. First threaded rod; 17. Second threaded rod; 18. Tensioning block; 19. Motor; 20. Lead screw; 21. Guide rod; 22. Spacer block. Specific embodiments

[0018] In order to deepen the understanding of the present utility model, the following will further describe the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0019] According to Figure 1 , 2 , as shown in Figures 3 and 4, this embodiment proposes an angle adjustment mechanism for a grinding machine, including a base 1, a clamping frame 2 and a grinding stone 3. A clamping frame 2 is provided on the top of the base 1, and the grinding stone 3 is fixed to the clamping frame 2 through a clamping mechanism. A first sliding seat 5 and a second sliding seat 6 are respectively provided on both sides of the base 1. A fixing plate 7 is installed between the tops of the first sliding seat 5 and the second sliding seat 6. An angle adjustment mechanism matching the fixing plate 7 is provided on the top of the second sliding seat 6. First, the grinding stone 3 is fixed inside the clamping frame 2 through the clamping mechanism, the tool to be ground is fixed in the grinding machine through the fixing plate 7, and the tool is adjusted to a suitable grinding angle through the angle adjustment mechanism. The first sliding seat 5 and the second sliding seat 6 drive the fixing plate 7 to reciprocate horizontally on the top of the grinding stone 3 to perform the grinding work on the tool.

[0020] The clamping mechanism includes a second threaded rod 17 and a tensioning block 18. One side of the clamping frame 2 is threadedly connected with the second threaded rod 17. One end of the second threaded rod 17 is rotatably connected with the tensioning block 18. A cushion block 22 is provided at the bottom of the clamping frame 2. A convex block is provided at the top of the cushion block 22. Adjacent cushion blocks 22 are engaged with each other through the convex blocks. The grinding stone 3 is placed inside the clamping frame 2. Since the second threaded rod 17 is in threaded cooperation with one side of the clamping frame 2 and the tensioning block 18 is rotatably connected with one end of the second threaded rod 17, turning the second threaded rod 17 forward and backward can drive the tensioning block 18 to move horizontally back and forth, so as to drive the tensioning block 18 to move towards the grinding stone 3 to clamp it. At this time, the grinding stone 3 is fixed inside the clamping frame 2. When the grinding stone 3 needs to be replaced, turning the second threaded rod 17 can drive the tensioning block 18 to separate from the grinding stone 3. When the grinding stone 3 is worn, cushion blocks 22 can be stacked at its bottom, and adjacent cushion blocks 22 are engaged with each other through the convex blocks.

[0021] The fixing plate 7 is composed of an upper clamping block 14 and a lower clamping block 15. The upper clamping block 14 is arranged on the top of the lower clamping block 15. The top of the lower clamping block 15 is symmetrically provided with first threaded rods 16. The top ends of the first threaded rods 16 penetrate through the inside of the upper clamping block 14 and are threadedly connected with nuts. Clamping grooves are provided on the inner sides of the upper clamping block 14 and the lower clamping block 15. First, loosen the nut at the top end of the first threaded rod 16, then insert the tool into the clamping groove inside the fixing plate 7, and then tighten the nut at the top end of the first threaded rod 16. The nut presses the upper clamping block 14 and the lower clamping block 15 to close together, so that the upper clamping block 14 and the lower clamping block 15 clamp the outer wall of the tool, and then fix the tool to be polished inside the fixing plate 7. When the tool needs to be taken out, loosen the nut at the top end of the first threaded rod 16 again.

[0022] The angle adjustment mechanism includes a rotating shaft 8, a movable sleeve 9, a clamping cylinder 10 and a connecting cylinder 11. A connecting cylinder 11 is provided at the top of the second sliding seat 6. Rotating shafts 8 are symmetrically connected to both sides of the fixed plate 7. One end of one of the rotating shafts 8 penetrates into the interior of the connecting cylinder 11. A movable sleeve 9 is sleeved on the outer side of the rotating shaft 8. One end of the movable sleeve 9 is connected to a clamping cylinder 10. The outer side of the movable sleeve 9 is threadedly connected to one end inside the connecting cylinder 11 through a threaded surface 12. An inclined groove 13 is provided on the other side inside the connecting cylinder 11. One end of the rotating shaft 8 penetrates out of the clamping cylinder 10. One end of the clamping cylinder 10 is provided with a chamfer. The interior of the inclined groove 13 is in fitting connection with the outer wall of the chamfer. Since the movable sleeve 9 is in threaded cooperation with one end of the connecting cylinder 11, the movable sleeve 9 can be screwed to move outward, and the clamping cylinder 10 connected to the movable sleeve 9 can be withdrawn from the range of the inclined groove 13 at the other end of the connecting cylinder 11. At this time, the clamping cylinder 10 no longer clamps the outer wall of the rotating shaft 8, and the restriction of the clamping cylinder 10 on the rotating shaft 8 is released. Also, since the rotating shaft 8 is connected to the fixed plate 7, rotating the rotating shaft 8 can drive the fixed plate 7 to rotate and adjust the angle. Then, the movable sleeve 9 is screwed to move into the interior of the connecting cylinder 11, so that the clamping cylinder 10 re-enters the range of the inclined groove 13. The inner wall of the inclined groove 13 is used to squeeze the clamping cylinder 10 to move toward the rotating shaft 8, and further the clamping cylinder 10 clamps the outer wall of the rotating shaft 8 to lock the position of the rotating shaft 8, completing the angle adjustment work of the fixed plate 7.

[0023] A guide rod 21 is provided on one side of the base 1. The bottom end of the second sliding seat 6 is slidably connected to the outer wall of the guide rod 21. A moving mechanism matching the first sliding seat 5 is provided on the other side of the base 1. The moving mechanism includes a motor 19 and a lead screw 20. A slide rail 4 is provided on the top of the base 1. One side of the first sliding seat 5 is slidably connected to the slide rail 4. The other side of the base 1 is rotatably connected to a lead screw 20. One end of the lead screw 20 penetrates out of the bottom end of the first sliding seat 5 and is threadedly connected thereto. A motor 19 is installed on the outer side of the base 1. The output end of the motor 19 is connected to one end of the lead screw 20. Since the output end of the motor 19 is connected to one end of the lead screw 20, the motor 19 can drive the lead screw 20 to rotate on the base 1. Also, since the outer side of the lead screw 20 is in threaded cooperation with the bottom of the first sliding seat 5, and the slide rail 4 restricts the moving track of the first sliding seat 5, when the motor 19 drives the lead screw 20 to rotate forward and backward, the first sliding seat 5 can be driven to move linearly back and forth, so that the first sliding seat 5 drives the tool to reciprocate above the grinding stone 3 through the fixed plate 7, and then the tool is automatically ground.

[0024] For the knife sharpening angle adjusting mechanism, by turning the movable sleeve 9 to move outward, the clamping cylinder 10 connected to the movable sleeve 9 is withdrawn from the range of the inclined groove 13 at the other end of the connecting cylinder 11, and the restriction of the clamping cylinder 10 on the rotating shaft 8 is released. The rotating shaft 8 can be rotated to drive the fixed plate 7 to rotate and adjust the angle. Then, turn the movable sleeve 9 to move inward into the connecting cylinder 11, so that the clamping cylinder 10 re-enters the range of the inclined groove 13. The inner wall of the inclined groove 13 is used to squeeze the clamping cylinder 10 to move towards the rotating shaft 8. Furthermore, the clamping cylinder 10 clamps the outer wall of the rotating shaft 8 to lock the position of the rotating shaft 8, and the tool is adjusted to an angle suitable for grinding.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A knife sharpening angle adjustment mechanism for a knife sharpener, comprising a base (1), a clamping frame (2) and a whetstone (3), characterized in that: The top of the base (1) is provided with a clamping frame (2), a whetstone (3) is fixed to the clamping frame (2) via a clamping mechanism, a No. 1 sliding seat (5) and a No. 2 sliding seat (6) are respectively provided on both sides of the base (1), a fixing plate (7) is installed between the tops of the No. 1 sliding seat (5) and the No. 2 sliding seat (6), and an angle adjustment mechanism matching the fixing plate (7) is provided on the top of the No. 2 sliding seat (6); The angle adjustment mechanism comprises a rotating shaft (8), a movable sleeve (9), a clamping sleeve (10) and a connecting sleeve (11); the top of the second sliding seat (6) is provided with a connecting sleeve (11); the rotating shafts (8) are symmetrically connected to the two sides of the fixed plate (7); one end of one of the rotating shafts (8) passes through the interior of the connecting sleeve (11); the outer side of the rotating shaft (8) is sleeved with a movable sleeve (9); one end of the movable sleeve (9) is connected to the clamping sleeve (10); the outer side of the movable sleeve (9) is threadedly connected to one end of the interior of the connecting sleeve (11) through a threaded surface (12); and the other side of the interior of the connecting sleeve (11) is provided with an inclined groove (13).

2. The knife sharpening angle adjustment mechanism for a knife sharpener according to claim 1, characterized in that: One end of the rotating shaft (8) passes through a clamping sleeve (10), one end of the clamping sleeve (10) is provided with a chamfer, and the interior of the inclined groove (13) is fitted and connected to the outer wall of the chamfer.

3. The knife sharpening angle adjustment mechanism for a knife sharpener according to claim 1, characterized in that: The fixing plate (7) is composed of an upper clamping block (14) and a lower clamping block (15); the upper clamping block (14) is arranged on the top of the lower clamping block (15); a No. 1 threaded rod (16) is symmetrically arranged on the top of the lower clamping block (15); the top end of the No. 1 threaded rod (16) passes through the interior of the upper clamping block (14) and is threadedly connected with a nut; and clamping grooves are arranged on the inner sides of the upper clamping block (14) and the lower clamping block (15).

4. The knife sharpening angle adjustment mechanism for a knife sharpener according to claim 1, characterized in that: A guide rod (21) is provided on one side of the base (1), the bottom end of the second sliding seat (6) is slidably connected to the outer wall of the guide rod (21), and a moving mechanism matching the first sliding seat (5) is provided on the other side of the base (1).

5. The knife sharpening angle adjustment mechanism for a knife sharpener according to claim 4, characterized in that: The moving mechanism comprises a motor (19) and a lead screw (20); a slide rail (4) is provided on the top of the base (1); one side of the first sliding seat (5) is slidably connected to the slide rail (4); the other side of the base (1) is rotatably connected to the lead screw (20); one end of the lead screw (20) passes through the bottom end of the first sliding seat (5) and is threadedly connected thereto; a motor (19) is installed on the outside of the base (1); and the output end of the motor (19) is connected to one end of the lead screw (20).

6. The knife sharpening angle adjustment mechanism for a knife sharpener according to claim 1, characterized in that: The clamping mechanism comprises a No. 2 threaded rod (17) and a tensioning block (18); one side of the clamping frame (2) is threadedly connected to the No. 2 threaded rod (17); one end of the No. 2 threaded rod (17) is rotatably connected to the tensioning block (18); a cushion block (22) is provided at the bottom of the clamping frame (2); a protrusion is provided at the top of the cushion block (22); and adjacent cushion blocks (22) are mutually engaged and connected via the protrusions.

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