Tool sharpener

Abstract

The utility model discloses a tool sharpener, which relates to the technical field of tool sharpeners, and comprises a rack, a grinding mechanism is arranged on the rack, and the grinding mechanism comprises an abrasive belt, a motor, a vertical plate, a driving wheel and a driven wheel; a base is arranged at the bottom of the vertical plate, a supporting frame is arranged at the top of the vertical plate and fixedly connected with a supporting plate, the driving wheel and the driven wheel are located on the side faces of the two ends of the vertical plate respectively, the driving wheel is connected with a rotating shaft of the motor, the motor is connected with the vertical plate through a motor protection cover, and the driven wheel is connected with the vertical plate through an adjusting mechanism. A cutter needing to be ground is placed on the horizontal placing plate, the driving wheel drives the driven wheel so that the abrasive belt can grind the cutter needing to be ground, an included angle is formed between the connecting line of the axle centers of the driving wheel and the driven wheel and the horizontal plane, and the supporting plate exerts extrusion force on the cutter when the cutter is ground while keeping the inclination of the abrasive belt. The knife sharpening angle does not need to be controlled manually, the working intensity of operators is reduced, and the knife sharpening quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of knife sharpeners, in particular to a knife sharpener. Background Art

[0002] After long-term use, the blade of household knives becomes blunt and needs to be sharpened. The traditional way is to manually sharpen the blade little by little with a whetstone. This method is not only time-consuming and labor-intensive, but also inefficient. With the development of the market, there are now machines for sharpening knives, but the existing sharpening machines are usually set horizontally, and the blade needs a certain angle. In order to sharpen the blade, the operator can only control the sharpening angle based on his own experience, and the sanding belt needs to be replaced after long-term sharpening, which is cumbersome and affects the efficiency of sharpening.

[0003] For this reason, a knife sharpener is specially proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a knife sharpener to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a knife sharpener, comprising a frame, a grinding mechanism is arranged on the frame, and the grinding mechanism comprises a sanding belt, a motor, a vertical plate, a driving wheel and a driven wheel;

[0006] A base is provided at the bottom of the vertical plate, a support frame is provided at the top of the vertical plate, a support plate is fixedly connected to the support frame, the driving wheel and the driven wheel are respectively located on the sides of both ends of the vertical plate, the driving wheel is connected to the rotating shaft of the motor, the motor is connected to the vertical plate through a motor protection cover, the driven wheel is connected to the vertical plate through an adjustment mechanism, the sanding belt is sleeved on the driving wheel, the driven wheel and the outer side of the support plate, and a horizontal placement plate is provided above the driven wheel;

[0007] The angle between the support plate and the horizontal plane is 8-18 degrees, and the angle between the line connecting the axes of the driving wheel and the driven wheel and the horizontal plane is 8-18 degrees.

[0008] Preferably, the angle between the support plate and the horizontal plane is 15 degrees, and the angle between the line connecting the axes of the driving wheel and the driven wheel and the horizontal plane is 15 degrees.

[0009] Preferably, the adjusting mechanism comprises a fixed seat, a limiting plate, a T-shaped connecting plate, an L-shaped handle, a connecting piece and a spring, the fixed seat and the limiting plate are both fixedly connected to the side walls of the vertical plate, the connecting piece is rotatably connected to both sides of the driven wheel, the T-shaped connecting plate passes through the fixed seat and the limiting plate and a spring is sleeved on the T-shaped connecting plate between the fixed seat and the limiting plate, one end of the spring abuts against the fixed seat, and the other end abuts against the step of the T-shaped connecting plate, one end of the T-shaped connecting plate passing through the limiting plate is connected to the driven wheel through the connecting piece, and the L-shaped handle is rotatably connected to the middle part of the T-shaped connecting plate and abuts against the limiting plate.

[0010] Preferably, V-shaped grooves are formed on the outer surfaces of the driving wheel and the driven wheel, and a baffle is provided above the driving wheel, wherein the baffle is an extension of the motor protection cover.

[0011] Preferably, a concave water tank is provided on the inner side of the rear portion of the frame, a partition is provided in the middle of the water tank, a water pump is provided in the water tank on one side close to the motor, a magnet is provided in the water tank on the other side, a drain pipe is provided under the water tank, a water spray pipe and a spotlight are fixed on the motor protection cover, and the water spray pipe is connected to the water pump through a pipe.

[0012] Preferably, the end of the water spray pipe is connected to a spray head, the spray head is a flat inverted trapezoid, and the end of the spray head is provided with comb teeth.

[0013] Preferably, rotating wheels are provided on both sides of the front of the frame, the rotating wheels are connected to the rotating motor inside the frame, and a protective cover is provided above the rotating wheels.

[0014] Preferably, a metal waterproof switch is provided on the front side of the frame, and inward flanges are provided around the frame.

[0015] Preferably, a tool clamping device is also provided on the front side of the frame, and the tool clamping device includes a fixing frame fixed at both ends of the front side of the frame, a horizontal axis connected between the two fixing frames, a sliding block slidably connected to the horizontal axis, a fixing device fixedly connected to the sliding block, and a tool clamping device detachably connected to the fixing device; the fixing device includes an ear seat fixedly connected to the sliding block, an outer ring connected between the ear seats, and an inner ring sleeved in the outer ring, and a locking button is screwed on the top of the inner ring.

[0016] Preferably, the knife clamping device includes a connecting rod plugged into the inner ring, a sliding rail fixed to the end of the connecting rod by a hinge, a fixed plate slidably connected to the sliding rail, a limit frame fixed to the front end of the fixed plate, a movable plate sleeved in the limit frame, and an adjusting button passing through the top of the limit frame and connected to the movable plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model places the knife to be sharpened on a horizontal plate, and drives the driven wheel through the driving wheel so that the abrasive belt grinds the knife to be sharpened. There is an angle between the line connecting the axes of the driving wheel and the driven wheel and the horizontal plane. The support plate keeps the abrasive belt tilted and also gives the knife an extrusion force when sharpening. There is no need to manually control the sharpening angle, which reduces the work intensity of the operator and improves the sharpening quality. In addition, the driven wheel also has an adjustment mechanism to adjust the distance, which is more convenient when replacing the abrasive belt and can adapt to abrasive belts of different lengths.

[0019] 2. The utility model clamps the tool through the tool clamping device so that the tool can be moved horizontally. There is no need for people to hold the tool by hand, which reduces the risk of human injury and alleviates the work intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0022] Figure 3 This is a schematic diagram of the disassembled state of the utility model;

[0023] Figure 4 This is a schematic diagram of the adjustment mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the nozzle of the utility model;

[0025] Figure 6 This is a schematic diagram of the driving wheel structure of the utility model;

[0026] Figure 7 This is a schematic diagram of the second embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the second embodiment of the present utility model.

[0028] In the figure: 1-frame; 2-grinding mechanism; 3-adjusting mechanism; 4-water tank; 5-drain pipe; 6-spray pipe; 7-spotlight table; 8-spray head; 9-rotating wheel; 10-fixed frame; 11-horizontal axis; 12-sliding block; 13-fixing device; 14-knife clamping device; 21-vertical plate; 22-driving wheel; 23-driven wheel; 210-base; 211-support frame; 212-support plate; 213-motor protection cover; 31-fixed seat; 32-limiting plate; 33-T-type connecting plate; 34-L-type handle; 35-connecting piece; 36-spring; 131-ear seat; 132-outer ring; 133-inner ring; 134-locking button; 141-connecting rod; 142-fixed plate; 143-limiting frame; 144-movable plate; 145-adjusting button; 146-slide rail. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1

[0031] See also Figure 1-6 , as shown in the figure: This embodiment is a preferred implementation of the technical solution, a knife sharpener, including a frame 1, a grinding mechanism 2 is provided on the frame 1, the grinding mechanism 2 includes a sanding belt, a motor, a vertical plate 21, a driving wheel 22 and a driven wheel 23; a base 210 is provided at the bottom of the vertical plate 21, a support frame 211 is provided at the top of the vertical plate 21, a support plate 212 is fixedly connected to the support frame 211, the driving wheel 22 and the driven wheel 23 are respectively located on the sides of the two ends of the vertical plate 21, the driving wheel 22 is connected to the rotating shaft of the motor, and the motor is connected to the motor protective cover 213 It is connected to the vertical plate 21, and the driven wheel 23 is connected to the vertical plate 21 through the adjusting mechanism 3. The abrasive belt is sleeved on the outer sides of the driving wheel 22, the driven wheel 23 and the support plate 212, and a horizontal placement plate is provided above the driven wheel 23; the angle between the support plate 212 and the horizontal plane is 8-18 degrees, and the angle between the line connecting the axes of the driving wheel 22 and the driven wheel 23 and the horizontal plane is 8-18 degrees; further preferably, the angle between the support plate 212 and the horizontal plane is 15 degrees, and the angle between the line connecting the axes of the driving wheel 22 and the driven wheel 23 and the horizontal plane is 15 degrees.

[0032] The knife to be sharpened is placed on a horizontal plate, and the driving wheel 22 drives the driven wheel 23 so that the abrasive belt can grind the knife to be sharpened. There is an angle between the line connecting the axes of the driving wheel 22 and the driven wheel 23 and the horizontal plane. The support plate 212 keeps the abrasive belt tilted and also applies a squeezing force to the knife when sharpening. There is no need to manually control the sharpening angle, which reduces the workload of the operator and improves the quality of sharpening.

[0033] In a preferred embodiment, Figure 4 , 5As shown, the adjustment mechanism 3 includes a fixed seat 31, a limiting plate 32, a T-shaped connecting plate 33, an L-shaped handle 34, a connecting piece 35 and a spring 36. The fixed seat 31 and the limiting plate 32 are both fixedly connected to the side wall of the vertical plate 21, the connecting piece 35 is rotatably connected to both sides of the driven wheel 23, the T-shaped connecting plate 33 passes through the fixed seat 31 and the limiting plate 32, and a spring 36 is sleeved on the T-shaped connecting plate 33 between the fixed seat 31 and the limiting plate 32, one end of the spring 36 abuts against the fixed seat 31, and the other end abuts against the step of the T-shaped connecting plate 33, one end of the T-shaped connecting plate 33 passing through the limiting plate 32 is connected to the driven wheel 23 through the connecting piece 35, and the L-shaped handle 34 is rotatably connected to the middle of the T-shaped connecting plate 33 and abuts against the limiting plate 32;

[0034] It should be noted that the L-shaped handle 34 always maintains an abutment state with the limit plate 32, and this state is ensured by the elastic force of the spring 36. When the L-shaped handle 34 is moved forward, the short side of the L-shaped handle 34 maintains an abutment state with the limit plate 32; when the L-shaped handle 34 is moved to one side, the long side of the L-shaped handle 34 maintains an abutment state with the limit plate 32. When the two states are switched, the distance from the rotation center of the L-shaped handle 34 to the two sides of the L-shaped handle 34 is different, so the T-shaped connecting plate 33 will be positioned at different positions, thereby driving the driven wheel 23 to be positioned at different positions, so that the distance between it and the driving wheel 22 can be adjusted, which is more convenient when replacing the sanding belt and can also adapt to sanding belts of different lengths.

[0035] In a preferred embodiment, a concave water tank 4 is provided on the inner side of the rear part of the frame 1, a partition is provided in the middle of the water tank 4, a water pump is provided in the water tank 4 on one side close to the motor 22, a magnet is provided in the water tank 4 on the other side, a drain pipe 5 is provided under the water tank 4, a water spray pipe 6 and a spotlight 7 are fixed on the motor protection cover 221, and the water spray pipe 6 is connected to the water pump through a pipeline; a nozzle 8 is connected to the end of the water spray pipe 6, the nozzle 8 is a flat inverted trapezoid, and a comb is provided at the end of the nozzle 8;

[0036] It should be noted that the water tank 4 is a downwardly concave square tank, which is arranged on the inner side of the rear part of the frame 1 and is separated by a partition in the middle. A water pump is arranged in the water tank 4 on the side close to the motor 22. A filter material (such as a sponge) can be arranged in front of the water inlet of the water pump for circulating filtration. A magnet is arranged in the water tank 4 on the other side to absorb the ground material. When in use, water floods the water tank 4 to reach the side wall of the frame 1, and the nozzle 8 of the water spray pipe 6 flushes the sand belt, and the flushing water flushes to one side. The comb teeth at the front end of the nozzle 8 clean the sand belt and sweep impurities to one side. The wastewater with impurities passes through the magnet on the right side of the water tank 4, and the magnet absorbs the impurities. When the water floods one side of the water tank 4, it flows to the other side to form a cycle.

[0037] In a preferred embodiment, V-shaped grooves are provided on the outer surfaces of the driving wheel 22 and the driven wheel 23 to increase friction with the sanding belt and help reduce the temperature of the wheels; a baffle is provided above the driving wheel 22, which is an extension of the motor protection cover 221 to prevent dust and water stains from splashing everywhere.

[0038] In a preferred embodiment, rotating wheels 9 are provided on both sides of the front of the frame 1, and the rotating wheels 9 are connected to the rotating motor inside the frame 1. A protective cover is provided above the rotating wheel 9. The material of the rotating wheel 9 can be replaced as needed, and rough processing or fine processing can be performed.

[0039] In a preferred embodiment, a metal waterproof switch is provided on the front side of the frame 1, and inward flanges are provided around the frame 1, which is waterproof and more beautiful, and increases the pulling force, and is not easy to cut hands.

[0040] Embodiment 2

[0041] like Figure 7 , 8 As shown, the front side of the frame 1 is also provided with a tool clamping device, which includes a fixing frame 10 fixed at both ends of the front side of the frame 1, a horizontal shaft 11 connected between the two fixing frames 10, a sliding block 12 slidably connected to the horizontal shaft 11, a fixing device 13 fixedly connected to the sliding block 12, and a tool clamping device 14 detachably connected to the fixing device 13; the fixing device 13 includes an ear seat 131 fixedly connected to the sliding block 12, an outer ring 132 connected between the ear seats 131, and a sleeve An inner ring 133 is connected to the outer ring 132, and a locking button 134 is screwed on the top of the inner ring 133; the knife clamping device 14 includes a connecting rod 141 inserted into the inner ring 133, a slide rail 146 fixed to the end of the connecting rod 141 by a hinge, a fixed plate 142 slidably connected to the slide rail 146, a limiting frame 143 fixed to the front end of the fixed plate 142, a movable plate 144 sleeved in the limiting frame 143 and an adjusting button 145 that passes through the top of the limiting frame 143 and is connected to the movable plate 144.

[0042] The tool is placed horizontally, and the blunt surface of the tool is placed between the fixed plate 142 and the movable plate 144. The adjusting knob 145 is rotated to move the movable plate 144 so as to clamp the tool with the fixed plate 142. The connecting rod 141 is inserted into the inner ring 133 and fixed by the locking knob 134. The connecting rod 141 is manually pushed to reciprocate along the horizontal axis 11 so as to grind the entire blade. There is no need to hold the tool by hand and keep away from the machine, which reduces the risk of personal injury and the work intensity of the operator. In addition, the fixed frame 10 can also adopt a liftable structure, connecting the movable end to the end of the horizontal axis 11 to adjust the overall height of the tool. The overall height of the tool can also be adjusted by rotating the outer ring 132 and the ear seat 131, and the fixed plate 142 slides on the slide rail 146 to drive the tool as a whole to move back and forth.

[0043] In summary, the utility model places the knife to be sharpened on the horizontal placement plate, and drives the driven wheel 23 through the driving wheel 22 so that the abrasive belt grinds the knife to be sharpened. There is an angle between the line connecting the axes of the driving wheel 22 and the driven wheel 23 and the horizontal plane. The support plate 212 keeps the abrasive belt tilted and also gives the knife a squeezing force when sharpening. There is no need to manually control the sharpening angle, which reduces the work intensity of the operator and improves the sharpening quality. In addition, the driven wheel 23 also has an adjustment mechanism 3 that can adjust the distance, which is more convenient when replacing the abrasive belt and can also adapt to abrasive belts of different lengths.

[0044] The utility model clamps the tool by the tool clamping device so that the tool can be moved horizontally, and the tool does not need to be held by hand, thereby reducing the risk of human injury and alleviating the work intensity of the operator.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A knife sharpening machine, comprising a frame (1), characterized in that: The frame (1) is provided with a grinding mechanism (2), and the grinding mechanism (2) comprises a grinding belt, a motor, a vertical plate (21), a driving wheel (22) and a driven wheel (23); A base (210) is provided at the bottom of the vertical plate (21), a support frame (211) is provided at the top of the vertical plate (21), a support plate (212) is fixedly connected to the support frame (211), the driving wheel (22) and the driven wheel (23) are respectively located on the sides of both ends of the vertical plate (21), the driving wheel (22) is connected to the rotating shaft of the motor, the motor is connected to the vertical plate (21) through a motor protection cover (213), the driven wheel (23) is connected to the vertical plate (21) through an adjustment mechanism (3), the sanding belt is sleeved on the driving wheel (22), the driven wheel (23) and the outer side of the support plate (212), and a horizontal placement plate is provided above the driven wheel (23); The angle between the support plate (212) and the horizontal plane is 8-18 degrees, and the angle between the line connecting the axes of the driving wheel (22) and the driven wheel (23) and the horizontal plane is 8-18 degrees.

2. A knife sharpener according to claim 1, characterized in that: The angle between the support plate (212) and the horizontal plane is 15 degrees, and the angle between the line connecting the axes of the driving wheel (22) and the driven wheel (23) and the horizontal plane is 15 degrees.

3. A knife sharpener according to claim 2, characterized in that: The adjusting mechanism (3) comprises a fixing seat (31), a limiting plate (32), a T-shaped connecting plate (33), an L-shaped handle (34), a connecting piece (35) and a spring (36); the fixing seat (31) and the limiting plate (32) are both fixedly connected to the side wall of the vertical plate (21); the connecting piece (35) is rotatably connected to both sides of the driven wheel (23); the T-shaped connecting plate (33) passes through the fixing seat (31) and the limiting plate (32) and is disposed on the fixing seat (31). A spring (36) is sleeved on the T-shaped connecting plate (33) between the upper and lower ends of the connecting plate (31) and the limiting plate (32), one end of the spring (36) is in contact with the fixing seat (31), and the other end is in contact with the step of the T-shaped connecting plate (33), one end of the T-shaped connecting plate (33) passing through the limiting plate (32) is connected to the driven wheel (23) through a connecting piece (35), and the L-shaped handle (34) is rotatably connected to the middle part of the T-shaped connecting plate (33) and is in contact with the limiting plate (32).

4. A knife sharpener according to claim 2, characterized in that: V-shaped grooves are provided on the outer surfaces of the driving wheel (22) and the driven wheel (23); a baffle is provided above the driving wheel (22); the baffle is an extension of the motor protection cover (213).

5. A knife sharpener according to claim 2, characterized in that: A concave water tank (4) is provided on the inner side of the rear part of the frame (1), a partition is provided in the middle of the water tank (4), a water pump is provided in the water tank (4) on one side close to the motor, a magnet is provided in the water tank (4) on the other side, a drain pipe (5) is provided below the water tank (4), a water spray pipe (6) and a spotlight (7) are fixed on the motor protection cover (213), and the water spray pipe (6) is connected to the water pump through a pipeline.

6. A knife sharpener according to claim 5, characterized in that: The end of the water spray pipe (6) is connected to a spray head (8), the spray head (8) is in a flat inverted trapezoidal shape, and the end of the spray head (8) is provided with comb teeth.

7. A knife sharpener according to claim 2, characterized in that: Rotating wheels (9) are provided on both sides of the front of the frame (1); the rotating wheels (9) are connected to a rotating motor inside the frame (1); and a protective cover is provided above the rotating wheels (9).

8. A knife sharpener according to claim 2, characterized in that: A metal waterproof switch is provided on the front side of the frame (1), and inward flanges are provided around the frame (1).

9. A knife sharpener according to claim 2, characterized in that: The front side of the frame (1) is also provided with a tool clamping device, which comprises a fixing frame (10) fixed at both ends of the front side of the frame (1), a horizontal shaft (11) connected between the two fixing frames (10), a sliding block (12) slidably connected to the horizontal shaft (11), a fixing device (13) fixedly connected to the sliding block (12), and a tool clamping device (14) detachably connected to the fixing device (13); The fixing device (13) comprises an ear seat (131) fixedly connected to the sliding block (12), an outer ring (132) connected between the ear seats (131), and an inner ring (133) sleeved in the outer ring (132), and a locking button (134) is screwed on the top of the inner ring (133).

10. A knife sharpener according to claim 9, characterized in that: The knife clamping device (14) comprises a connecting rod (141) plugged into the inner ring (133), a slide rail (146) fixed to the end of the connecting rod (141) by a hinge, a fixed plate (142) slidably connected to the slide rail (146), a limiting frame (143) fixed to the front end of the fixed plate (142), a movable plate (144) sleeved in the limiting frame (143), and an adjusting button (145) passing through the top of the limiting frame (143) and connected to the movable plate (144).

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