Electric knife sharpener

Abstract

The utility model discloses an electric knife sharpener, which relates to the field of knife sharpeners, and comprises a first grinding structure, a second grinding structure and a third grinding structure, the first grinding structure comprises a plurality of first grinding wheels which are parallel to one another and are used for sharpening knives, and the adjacent first grinding wheels are arranged at intervals; the second grinding structure comprises a plurality of second grinding wheels which are parallel to one another and used for grinding a knife, and every two adjacent second grinding wheels are arranged at intervals; a grinding position for grinding a cutter is formed between the first grinding structure and the second grinding structure; the interval between every two adjacent first grinding wheels is larger than the thickness of each second grinding wheel, the interval between every two adjacent second grinding wheels is larger than the thickness of each first grinding wheel, and the first grinding wheels and the second grinding wheels are arranged in a staggered mode. And the adjusting structure can drive the second grinding structure to move. According to the electric knife sharpener, the grinding included angle of the grinding position can be adjusted so as to adapt to different knives.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpeners, specifically to an electric knife sharpener. Background Technology

[0002] In daily life, people frequently use various kinds of knives. When knives are used for too long, they become dull and difficult to use. Therefore, electric knife sharpeners for home use have appeared on the market. These electric knife sharpeners are easy to use; dull knives are sharpened by placing them on the sharpening station of the electric knife sharpener, and the knives become sharp again, making them easier to use. However, the sharpening angle of the sharpening station of existing electric knife sharpeners cannot be adjusted, and they cannot adapt well to different knives, thus affecting the sharpening efficiency and quality of the knives. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an electric knife sharpener that can adjust the grinding angle of the grinding position to adapt to different knives.

[0004] This utility model is achieved using the following technical solution:

[0005] An electric knife sharpener includes: a first grinding structure comprising a plurality of parallel first grinding wheels for sharpening knives, with adjacent first grinding wheels spaced apart; a second grinding structure comprising a plurality of parallel second grinding wheels for sharpening knives, with adjacent second grinding wheels spaced apart; the first grinding structure and the second grinding structure together form a grinding position for sharpening knives; the interval between adjacent first grinding wheels is greater than the thickness of each second grinding wheel, and the interval between adjacent second grinding wheels is greater than the thickness of each first grinding wheel, with the first and second grinding wheels arranged in a staggered manner; and an adjustment structure capable of moving the second grinding structure to adjust the insertion depth of each second grinding wheel into the interval between corresponding adjacent two first grinding wheels, thereby adjusting the grinding angle of the grinding position to adapt the grinding position to different knives.

[0006] In one embodiment, the electric grinder further includes a housing, a first grinding structure is disposed on the housing, a groove structure is provided on the housing, a second grinding structure is slidably connected to the groove structure, and the second grinding structure adjusts the insertion depth of each second grinding wheel into the interval between two adjacent first grinding wheels by sliding on the groove structure.

[0007] In one embodiment, the adjustment structure includes a first part and a second part. The first part is slidably connected to the housing, and the second part is connected to the second grinding structure. The first part and the second part are slidably connected. The first part is provided with a first inclined surface, and the second part is provided with a second inclined surface. The inclination directions of the first inclined surface and the second inclined surface are opposite. The first inclined surface abuts against the second inclined surface. By sliding the first part, the first inclined surface slides toward the inclination direction of the second inclined surface to push the second part toward the second grinding structure. The second part pushes the second grinding structure toward the first grinding structure.

[0008] In one embodiment, the first part is provided with a first holding part, and the second part is provided with a second holding part. The first holding part and the second holding part are locked together. When it is necessary to reduce the depth of each second grinding wheel inserted into the gap between two adjacent first grinding wheels, the first part is slid toward the original position. The first part can pull the second part to move toward the first part, and the second part drives the second grinding structure to move toward the first part.

[0009] In one embodiment, the rotation directions of each first grinding wheel and each second grinding wheel are opposite, and the rotation direction of each first grinding wheel near the second grinding structure and the rotation direction of each second grinding wheel near the first grinding structure are upward, so that the direction of the grinding tool is towards the direction from the cutting edge to the back of the tool.

[0010] In one embodiment, the electric grinder further includes: a driving device comprising a motor and a spindle, the motor driving the spindle to rotate, a first gear and a second gear being mounted on the spindle, the first gear and the second gear rotating synchronously with the spindle; a first grinding structure comprising a first rotating shaft, a third gear being disposed at one end of the first rotating shaft near the spindle, the first gear and the third gear being orthogonally connected, each first grinding wheel being mounted on the first rotating shaft, each first grinding wheel rotating synchronously with the first rotating shaft; a second grinding structure comprising a second rotating shaft, a fourth gear being disposed at one end of the second rotating shaft near the spindle, the second gear and the fourth gear being orthogonally connected, each second grinding wheel being mounted on the second rotating shaft, each second grinding wheel rotating synchronously with the second rotating shaft; the rotation directions of the first rotating shaft and the second rotating shaft are opposite.

[0011] In one embodiment, a spring is sleeved on the main shaft, the spring being located between the first gear and the second gear, one end of the spring abutting against the first gear, and the other end of the spring abutting against the second gear.

[0012] In one embodiment, the first part is provided with a spring sheet structure, the spring sheet structure is provided with a protrusion, and the inner wall of the housing is provided with a plurality of grooves. By moving the first part, the protrusion can fall into any of the grooves, and each groove corresponds to an adjustment position.

[0013] In one embodiment, the electric tool grinder further includes a chip removal structure, which includes a magnet capable of attracting chips generated during the grinding of tools by the first grinding structure and the second grinding structure.

[0014] In one embodiment, the bottom of the housing is provided with a foot pad, the bottom of which has a suction cup structure that allows the housing to be attached to an external placement surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The electric knife sharpener of this utility model is provided with multiple parallel first grinding wheels and multiple parallel second grinding wheels for sharpening knives. By using an adjustment structure to adjust the insertion depth of each second grinding wheel into the interval between two adjacent first grinding wheels, the grinding angle of the grinding position can be adjusted so that the grinding position of the electric knife sharpener of this utility model can be adapted to different knives, thereby making it more conducive to the grinding of different knives and improving the efficiency and quality of knife grinding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electric knife sharpener in one embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of an electric knife sharpener according to one embodiment of the present invention;

[0018] Figure 3 This is a partial three-dimensional structural diagram of an electric knife sharpener according to one embodiment of the present invention;

[0019] Figure 4 This is a structural breakdown diagram of the adjustment structure in one embodiment of the present invention;

[0020] Figure 5 This is a structurally disassembled schematic diagram of an electric knife sharpener according to one embodiment of the present invention;

[0021] Figure 6 This is a partial structural schematic diagram of an electric knife sharpener in one embodiment of the present invention;

[0022] Figure 7 This is a three-dimensional structural diagram of the foot pad in one embodiment of the present invention;

[0023] Figure 8This is a schematic diagram of the sliding block in one embodiment of the present invention.

[0024] Reference numerals: 1. First grinding structure; 2. First grinding wheel; 3. Second grinding structure; 4. Second grinding wheel; 5. Grinding position; 6. Spacing between adjacent first grinding wheels; 7. Spacing between adjacent second grinding wheels; 8. Adjustment structure; 9. Housing; 10. Slide groove structure; 11. First part; 12. Second part; 13. First inclined surface; 14. Second inclined surface; 15. Sliding block; 16. Actuating element; 17. First holding part; 18. Second holding part; 19. Drive device; 20. Motor; 21. Spindle; 22. First gear; 23. Second gear; 24. First rotating shaft; 25. Third gear; 26. Second rotating shaft; 27. Fourth gear; 28. Spring; 29. ​​Spring sheet structure; 30. Protrusion; 31. Groove; 32. Iron chip removal structure; 33. Magnet; 34. Foot pad; 35. Suction cup structure. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 2A preferred embodiment of the electric tool sharpener of this utility model includes: a first grinding structure 1, which includes a plurality of parallel first grinding wheels 2 for sharpening tools, with adjacent first grinding wheels 2 spaced apart; a second grinding structure 3, which includes a plurality of parallel second grinding wheels 4 for sharpening tools, with adjacent second grinding wheels spaced apart by 7; the first grinding structure 1 and the second grinding structure 3 together form a grinding position 5 for sharpening tools; the interval 6 between adjacent first grinding wheels is greater than the thickness of each second grinding wheel 4, and the interval 7 between adjacent second grinding wheels is greater than the thickness of each first grinding wheel 2, with the first grinding wheels 2 and the second grinding wheels 4 arranged in a staggered manner; and an adjustment structure 8, which can drive the second grinding structure 3 to move, thereby adjusting the depth at which each second grinding wheel 4 is inserted into the corresponding interval 6 between two adjacent first grinding wheels, and adjusting the grinding angle of the grinding position 5 so that the grinding position 5 can adapt to different tools.

[0030] The electric knife sharpener of this invention is equipped with multiple parallel first grinding wheels 2 and multiple parallel second grinding wheels 4 for sharpening. The depth of each second grinding wheel 4 inserted into the corresponding interval 6 between two adjacent first grinding wheels is adjusted by the adjustment structure 8 to adjust the grinding angle of the grinding position 5. This allows the grinding position 5 of the electric knife sharpener of this invention to adapt to different knives, thereby making it more conducive to the sharpening of different knives and improving the efficiency and quality of knife sharpening.

[0031] As a preferred embodiment of the electric knife sharpener of this utility model, it may also have the following additional technical features:

[0032] Reference Figure 1 and Figure 6 In one embodiment, the electric grinder further includes a housing 9, a first grinding structure 1 disposed on the housing 9, a groove structure 10 provided on the housing 9, and a second grinding structure 3 slidably connected to the groove structure 10. The second grinding structure 3 adjusts the insertion depth of each second grinding wheel 4 into the corresponding interval 6 between two adjacent first grinding wheels by sliding along the groove structure 10. With this structure, since the second grinding structure 3 slides along the groove structure 10, the movement of the second grinding structure 3 is more stable, and the process of adjusting the insertion depth of each second grinding wheel 4 into the corresponding interval 6 between two adjacent first grinding wheels is more stable. In other embodiments, other suitable structures can be used instead of the groove structure 10, as long as the second grinding structure 3 is displaceable and can adjust the insertion depth of each second grinding wheel 4 into the corresponding interval 6 between two adjacent first grinding wheels.

[0033] Reference Figure 4 , Figure 6 and Figure 8In one embodiment, the adjusting structure 8 includes a first part 11 and a second part 12. The first part 11 is slidably connected to the housing 9, and the second part 12 is connected to the second grinding structure 3. The first part 11 has a first inclined surface 13, and the second part 12 has a second inclined surface 14. The inclination directions of the first inclined surface 13 and the second inclined surface 14 are opposite, and the first inclined surface 13 abuts against the second inclined surface 14. By sliding the first part 11, the first inclined surface 13 slides towards the inclination direction of the second inclined surface 14, thereby pushing the second part 12 towards the second grinding structure 3. The second part 12 then pushes the second grinding structure 3 towards the first grinding structure 1. This structure is simple, operates stably, and has better reliability. In other embodiments, the adjusting structure 8 can be replaced by other suitable structures.

[0034] In one embodiment, the first part 11 includes a sliding block 15 and a toggle member 16. The toggle member 16 is fixedly connected to the sliding block 15, which is located inside the housing 9. A first inclined surface 13 is disposed on the sliding block 15. The sliding block 15 is slidably connected to the second part 12. The toggle member 16 extends through the housing 9 to the outside of the housing 9. The user can control the movement of the sliding block 15 by toggling the toggle member 16, thus making it easier for the user to operate the electric knife sharpener of this invention. In other embodiments, the first part 11 may include a sliding block 15 that extends through the housing 9 to the outside of the housing 9, allowing the user to move the sliding block 15 by toggling it.

[0035] In one embodiment, a first holding part 17 is provided on the first part 11, and a second holding part 18 is provided on the second part 12. The first holding part 17 and the second holding part 18 are engaged and connected. When it is necessary to reduce the depth of each second grinding wheel 4 inserted into the corresponding two adjacent first grinding wheels at the interval 6, the first part 11 is slid toward the original position. The first part 11 can pull the second part 12 to move toward the first part 11. The second part 12 drives the second grinding structure 3 to move toward the first part 11. With the above structure, the structure is simple, the operation is stable, and the reliability is better.

[0036] In one embodiment, the first grinding wheels 2 and the second grinding wheels 4 rotate in opposite directions. The side of the first grinding wheel 2 closest to the second grinding structure 3 and the side of the second grinding wheel 4 closest to the first grinding structure 1 rotate upwards, so that the direction of the grinding tool is towards the cutting edge to the back of the tool. This ensures that the cutting edge line produced by the electric grinder of this invention is perpendicular to the cutting edge, creating a vertical grinding line. This overcomes the problem of one-sided edge rolling during grinding, relatively reduces burrs generated during edge grinding, increases sharpness, and significantly improves the cutting effect after grinding. In other embodiments, the first grinding wheels 2 and the second grinding wheels 4 may rotate in opposite directions, with the side of the first grinding wheel 2 closest to the second grinding structure 3 and the side of the second grinding wheel 4 closest to the first grinding structure 1 rotating downwards.

[0037] Reference Figure 1 , Figure 3 and Figure 5 In one embodiment, the electric grinder further includes: a drive device 19, which includes a motor 20 and a spindle 21. The motor 20 drives the spindle 21 to rotate. A first gear 22 and a second gear 23 are mounted on the spindle 21, and both the first gear 22 and the second gear 23 rotate synchronously with the spindle 21. The first grinding structure 1 includes a first rotating shaft 24, and a third gear 25 is provided at one end of the first rotating shaft 24 near the spindle 21. The first gear 22 and the third gear 25 are orthogonally connected. Each first grinding wheel... Two first grinding wheels 2 are mounted on the first rotating shaft 24, and each first grinding wheel 2 rotates synchronously with the first rotating shaft 24. The second grinding structure 3 includes a second rotating shaft 26, and a fourth gear 27 is provided at one end of the second rotating shaft 26 near the main shaft 21. The second gear 23 and the fourth gear 27 are orthogonally connected. Each second grinding wheel 4 is mounted on the second rotating shaft 26, and each second grinding wheel 4 rotates synchronously with the second rotating shaft 26. The rotation directions of the first rotating shaft 24 and the second rotating shaft 26 are opposite. The above structure is simple, stable in operation, and has better reliability. In other embodiments, the drive device 19 may use other suitable structures instead of the above structure.

[0038] Reference Figure 6In one embodiment, a spring 28 is fitted onto the spindle 21, located between the first gear 22 and the second gear 23. One end of the spring 28 abuts against the first gear 22, and the other end abuts against the second gear 23. Thus, during the grinding process of the electric tool grinder of this invention, the first grinding structure 1 and the second grinding structure 3 will vibrate. The spring 28 can buffer the vibration of the first grinding structure 1 and the second grinding structure 3, thereby reducing the impact on the drive device 19. This makes the electric tool grinder of this invention more stable and durable during tool grinding. In other embodiments, the spring 28 may not be fitted onto the spindle 21. In other embodiments, other suitable structures may be used instead of the spring 28.

[0039] Reference Figure 4 and Figure 6 In one embodiment, the first part 11 is provided with a spring-loaded structure 29, and the spring-loaded structure 29 is provided with a protrusion 30. The inner wall of the housing 9 is provided with multiple grooves 31. By moving the first part 11, the protrusion 30 can fall into any of the grooves 31. Each groove 31 corresponds to an adjustment position. This makes it easier to control the depth at which each second grinding wheel 4 is inserted between two adjacent first grinding wheels. When grinding tools, the user can adjust the first part 11 to the appropriate adjustment position according to the tool size, making the operation simple and quick. In other embodiments, the spring-loaded structure 29 may not be provided on the first part 11, and the grooves 31 may not be provided on the inner wall of the housing 9.

[0040] In one embodiment, the electric tool sharpener further includes a chip removal structure 32, which includes a magnet 33. The magnet 33 can attract the chips generated when the first grinding structure 1 and the second grinding structure 3 are grinding the tool. This prevents the chips generated during the grinding process from being too scattered. After the magnet attracts the chips, the user can clean them up in a concentrated manner, resulting in high cleaning efficiency and easy operation. In other embodiments, the electric tool sharpener may not include the chip removal structure 32.

[0041] Reference Figure 1 and Figure 7 In one embodiment, a foot pad 34 is provided at the bottom of the housing 9. The bottom of the foot pad 34 has a suction cup structure 35, which can adhere the housing 9 to an external placement surface. Thus, the suction cup structure 35 prevents the electric tool sharpener of this invention from shifting during operation, making it more stable for the user and improving the efficiency and quality of tool sharpening. In other embodiments, the bottom of the foot pad 34 may not have a suction cup structure 35.

[0042] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An electric knife sharpener characterized by, The utility model relates to a grinding device for grinding tool, comprising: a first grinding structure comprising a plurality of mutually parallel first grinding wheels for grinding tool, each adjacent first grinding wheel is arranged at intervals; a second grinding structure comprising a plurality of mutually parallel second grinding wheels for grinding tool, each adjacent second grinding wheel is arranged at intervals; the first grinding structure and the second grinding structure constitute a grinding position for grinding tool; the interval between each adjacent first grinding wheel is greater than the thickness of each second grinding wheel, and the interval between each adjacent second grinding wheel is greater than the thickness of each first grinding wheel; the first grinding wheel and the second grinding wheel are arranged in a staggered manner; an adjusting structure capable of moving the second grinding structure to adjust the depth of each second grinding wheel inserted into the interval between two adjacent first grinding wheels to adjust the grinding angle of the grinding position so that the grinding position can adapt to different tools.

2. The electric sharpener of claim 1, wherein Further comprising a housing, the first grinding structure is arranged on the housing, the housing is provided with a sliding groove structure, the second grinding structure is slidably connected with the sliding groove structure, and the second grinding structure is adjusted by sliding in the sliding groove structure to adjust the depth of each second grinding wheel inserted into the interval between two adjacent first grinding wheels.

3. The electric sharpener of claim 2, wherein The adjusting structure comprises a first part and a second part, the first part is slidably connected with the housing, the second part is connected with the second grinding structure, and the first part is slidably connected with the second part; the first part is provided with a first inclined surface, the second part is provided with a second inclined surface, the inclination direction of the first inclined surface is opposite to that of the second inclined surface, the first inclined surface abuts against the second inclined surface, by sliding the first part, the first inclined surface slides towards the inclination direction of the second inclined surface to push the second part to move towards the second grinding structure, and the second part pushes the second grinding structure to move towards the first grinding structure.

4. The electric sharpener of claim 3, wherein the first part is provided with a first clamping part, the second part is provided with a second clamping part, the first clamping part and the second clamping part are clamped and connected, when it is needed to reduce the depth of each second grinding wheel inserted into the interval between two adjacent first grinding wheels, the first part is slid towards the original position, the first part can pull the second part to move towards the first part, and the second part drives the second grinding structure to move towards the first part.

5. The electric sharpener of claim 1, wherein the rotation direction of each first grinding wheel is opposite to that of each second grinding wheel, and the rotation direction of the side of each first grinding wheel close to the second grinding structure and the side of each second grinding wheel close to the first grinding structure is upwards so that the direction of grinding tool is towards the direction from the cutting edge to the tool back.

6. The electric sharpener of claim 5, wherein, Further comprising: a driving device comprising a motor and a main shaft, the motor drives the main shaft to rotate, the main shaft is sleeved with a first gear and a second gear, and the first gear and the second gear rotate synchronously with the main shaft; The first grinding structure comprises a first rotating shaft, a third gear is arranged at one end of the first rotating shaft close to the main shaft, the first gear is in orthogonal transmission connection with the third gear, each first grinding wheel is sleeved on the first rotating shaft, and each first grinding wheel rotates synchronously with the first rotating shaft. The second grinding structure comprises a second rotating shaft, a fourth gear is arranged at one end of the second rotating shaft close to the main shaft, the second gear is in orthogonal transmission connection with the fourth gear, each second grinding wheel is sleeved on the second rotating shaft, and each second grinding wheel rotates synchronously with the second rotating shaft. The rotating directions of the first rotating shaft and the second rotating shaft are opposite.

7. The electric sharpener of claim 6 wherein, A spring is sleeved on the main shaft, the spring is located between the first gear and the second gear, one end of the spring abuts against the first gear, and the other end of the spring abuts against the second gear.

8. The electric sharpener of claim 3 wherein, The first part is provided with a spring piece structure, the spring piece structure is provided with a convex point, the inner wall of the shell is provided with a plurality of grooves, the convex point can fall into any groove by moving the first part, and each groove corresponds to an adjustment gear.

9. The electric sharpener of claim 1, wherein, The shell further comprises a scrap iron removing structure, the scrap iron removing structure comprises a magnet, and the magnet can adsorb scrap iron generated when the first grinding structure and the second grinding structure grind tools.

10. The electric sharpener of claim 2 wherein, The bottom of the shell is provided with a foot pad, the bottom of the foot pad is in a suction disc structure, and the suction disc structure can adsorb the shell on an external placement surface.

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