CN221290525U - Double-grinding wheel knife sharpener - Google Patents

Abstract

The application relates to the technical field of knife sharpeners, in particular to a double-grinding-wheel knife sharpeners, which comprises a shell and a knife sharpening mechanism arranged at the top end inside the shell, wherein the knife sharpening mechanism comprises a motor, a transmission assembly and two grinding wheels, the two grinding wheels are round, the top surface of the shell is concavely provided with two knife sharpening grooves, the two grinding wheels are vertically placed and rotatably arranged inside the shell, the two grinding wheels are positioned between the two knife sharpening grooves and are arranged in parallel, the circumferential surfaces of the two grinding wheels are grinding surfaces and are positioned on the same horizontal plane, the shell is provided with openings on one side surface of the two grinding wheels, which is close to the grinding wheels, one side surface of the two grinding wheels extends into the two sharpening grooves respectively through the corresponding openings, the motor is fixed inside the shell, and the two grinding wheels are connected with the transmission assembly.

Description

Double-grinding wheel knife sharpener

Technical Field

The application relates to the technical field of knife sharpeners, in particular to a double-grinding-wheel knife sharpener.

Background

The knife sharpener is a scientific, practical, efficient and convenient knife sharpener which is newly researched. Is suitable for various kitchen cutters, outdoor cutters, scissors, damascus cutters and ceramic cutters.

The existing knife sharpener comprises a shell, a motor, a grinding wheel fixing seat and a knife rest, wherein the motor is arranged in the shell, and the grinding wheel is coaxially connected with a driving shaft of the motor through the grinding wheel fixing seat; the knife rest is fixed on the outer wall of the shell, the grinding wheel is coated inside the knife rest, a through knife groove allowing a knife to be inserted into the knife rest to contact the surface of the grinding wheel is formed in the knife rest, and the knife is inserted into the knife groove to be contacted with the knife sharpening surface of the grinding wheel, so that quick knife sharpening is realized.

When the motor drives a single grinding wheel to grind the knife, the two sides of the cutting edge of the cutter are ground in opposite grinding directions, the cutting edge is easy to burr, and the grinding effect is poor.

Disclosure of utility model

The application provides a double-grinding-wheel knife sharpener, which aims to solve the problem that only one cutter can be ground at a time by driving a single grinding wheel through a motor and has lower efficiency for grinding batch cutters.

The utility model provides a double grinding wheel knife sharpener, includes the shell and sets up in the sharpening mechanism on the inside top of shell, sharpening mechanism includes motor, drive assembly and two emery wheels, two the emery wheel is the button form, the concave two grooves of sharpening in shell top surface, two the emery wheel all is vertical put and rotate install in the inside of shell, two the emery wheel is located two between the grooves of sharpening and be arranged side by side, two the periphery of emery wheel is the mill face and is in same horizontal plane, the shell is in two the groove of sharpening is close to one side of emery wheel all sets up the opening, two one lateral part of emery wheel stretches out to two respectively through the opening that corresponds in the groove of sharpening, the motor is fixed in inside the shell, two the emery wheel all with drive assembly is connected, the motor passes through drive assembly drive two the emery wheel synchronous rotation and the rotation opposite.

Through adopting above-mentioned technical scheme, place the cutter to the mill face of a knife sharpening groove in the side of cutter cutting edge paste the emery wheel, two emery wheels of motor drive through drive assembly rotate simultaneously and the rotation opposite direction, after finishing one side of cutter cutting edge, the cutter is changed the groove of whetting a knife and is polished the cutting edge opposite side, because two emery wheels are reverse rotation, have the uniformity to the polishing of cutter cutting edge two sides, the blade is difficult to play the burr, the effect of polishing is better.

Preferably, the other side surface of the knife sharpening groove opposite to the side surface where the opening is located is an inclined surface, and an included angle between the inclined surface of the knife sharpening groove and the height direction of the shell is 10-18 degrees.

Through adopting above-mentioned technical scheme, the inclined plane is in order that the cutter obtains the slope support, does not need the staff to right the counterpoint, and is comparatively laborsaving, the inclined plane with the contained angle of emery wheel direction is 10-18 matches cutter blade face inclination, makes the contact sharpening face that the cutter can be comprehensive, and the effect of polishing is better.

Preferably, the transmission assembly comprises a mounting frame, a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a sixth gear, wherein the driving shaft of the motor is connected with the first gear to drive the first gear to rotate, the second gear is connected and fixed with the third gear and coaxially arranged and both rotatably mounted on the mounting frame, the fourth gear is connected and fixed with one grinding wheel and coaxially arranged, the fifth gear is connected and fixed with the other grinding wheel and coaxially arranged, the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, the sixth gear is arranged between the fifth gear and the third gear, the fifth gear and the third gear are both meshed with the sixth gear, and the sixth gear is rotatably mounted on the mounting frame and fixed inside the housing.

Through adopting above-mentioned technical scheme, motor drive first gear rotates and drives second gear and the coaxial rotation of third gear, the gear of two meshing revolves to opposite direction, fourth gear and sixth gear all mesh with the third gear, the rotation of third gear drives fourth gear and sixth gear and the rotation direction of fourth gear and sixth gear is opposite with the rotation direction of third gear, sixth gear and fifth gear meshing, the rotation direction of sixth gear is opposite with the rotation direction of fifth gear, so the rotation direction of fourth gear and fifth gear is opposite, fourth gear is fixed and coaxial setting with a emery wheel connection, the fifth gear is fixed and coaxial setting with another emery wheel connection, realize that two emery wheels rotate in step and rotation direction is opposite.

Preferably, the bottom of shell is provided with sucking disc subassembly, sucking disc subassembly includes mount, sucking disc pad, revolving stage, connecting rod, driving lever, cross pin, the mount is fixed in the bottom of shell, the vertical setting of revolving stage and with the mount rotation is connected, the revolving stage is provided with from top to bottom runs through the trompil of revolving stage, the connecting rod wears to locate in the trompil, sucking disc pad is located the below of revolving stage, sucking disc pad week edge with mounting bracket fixed connection, the one end of connecting rod with sucking disc pad top surface fixed connection, the perforation has been seted up to the connecting rod lateral wall, the cross pin wear to locate in the perforation and with perforation interference fit, the revolving stage in be provided with two slides that are the arc and encircle in the trompil, two slide height climb opposite direction, one tip lateral wall of cross pin with one the sliding surface butt of slide, another tip lateral wall of cross pin with another sliding surface butt of slide, the connecting rod with the lateral wall fixed connection of revolving stage is used for stirring the revolving stage.

Through adopting above-mentioned technical scheme, place the shell on smooth holding surface, sucking disc pad and holding surface butt, go into the closed cavity between sucking disc pad and the holding surface, stir the revolving stage through the driving lever and rotate, the transverse pin both ends all climb to the high point of slide or all move to the slide low point, drive the connecting rod when the transverse pin both ends all climb to the high point of slide and rise, the connecting rod pull-up sucking disc pad, closed cavity space grow, the internal atmospheric pressure of closed cavity is less than with outside atmospheric pressure, make sucking disc pad adsorb to the holding surface on fix the shell, make the shell be difficult to remove when polishing operation, reduce the condition that the shell removes the influence polishing effect and pass through the reverse revolving stage of driving lever, the connecting rod pushes down the space in the sucking disc pad compression closed cavity, reduce the adsorption force of sucking disc, be convenient for break away from sucking disc and holding surface, realize shifting out the holding surface with the shell, it is comparatively practical.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The cutter is placed into one sharpening groove, one side face of the cutter blade is attached to the grinding face of the grinding wheel, the motor drives the two grinding wheels to rotate simultaneously and in opposite rotation directions through the transmission assembly, after one side of the cutter blade is polished, the cutter is replaced to sharpen the other side of the blade, and as the two grinding wheels rotate reversely, the two grinding wheels are consistent in polishing of the two sides of the cutter blade, burrs are not easy to generate on the cutting edge, and the polishing effect is better.

2. The other side face of the knife sharpening groove opposite to the side face where the opening is located is an inclined face, so that the knife is supported in an inclined mode, workers are not required to conduct righting and alignment, and labor is saved.

3 The bottom of shell is provided with sucking disc subassembly, and sucking disc subassembly adsorbs fixedly with outside holding surface for fix the shell, make the shell be difficult to remove when polishing the operation, reduce the shell and remove the condition that influences the effect of polishing.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a dual-grinding wheel knife sharpener according to the present embodiment.

Fig. 2 is a schematic view of the internal structure of the outer casing according to the present embodiment after planing.

Fig. 3 is a schematic view of a connection structure of other components of the sharpening mechanism of the present embodiment except for the mounting frame.

Fig. 4 is a schematic cross-sectional view of the bottom of the housing and the chuck assembly according to the present embodiment.

Reference numerals: 1. a housing; 11. a knife sharpening groove; 12. an inclined surface; 13. a transverse groove; 2. a knife sharpening mechanism; 21. a motor; 22. a transmission assembly; 221. a mounting frame; 222. a first gear; 223. a second gear; 224. a third gear; 225. a fourth gear; 226. a fifth gear; 227. a sixth gear; 23. grinding wheel; 3. a suction cup assembly; 31. a fixing frame; 32. a suction cup pad; 33. a turntable; 331. a slide; 34. a connecting rod; 35. a deflector rod; 36. and (5) a transverse pin.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 and 2, a dual-grinding wheel knife sharpener comprises a housing 1 and a sharpening mechanism 2, the sharpening mechanism 2 comprises a motor 21, a transmission assembly 22 and two grinding wheels 23, the two grinding wheels 23 are round blocks, two sharpening grooves 11 are concavely formed in the top surface of the housing 1, the two grinding wheels 23 are positioned at the top end of the housing 1, are vertically placed and are arranged side by side and are positioned between the two sharpening grooves 11, the circumferential surfaces of the two grinding wheels 23 are sharpening surfaces and are positioned on the same horizontal plane, the housing 1 is provided with openings near one side surface of the two sharpening grooves 11 of the grinding wheels 23, one side parts of the two grinding wheels 23 respectively extend into the two sharpening grooves 11 through the corresponding openings, the side surface of the sharpening grooves 11 is an inclined surface 12, a cutter is respectively placed into the two sharpening grooves 11, the inclined surface 12 is attached to one side surface of the cutter, the sharpening surface of the grinding wheels 23 is in contact with the other side surface of the cutter, the cutter is supported, a worker is not required to rightly align, the labor is saved, the inclined surface 12 of the inclined surface of the sharpening grooves 11 is 10-18 degrees in the height direction of the housing 1, the inclined surface is matched with the inclined surface of the cutter, the cutter is enabled to have a complete contact with the cutter, the sharpening effect, the two cutter edges are better in the sharpening effect, and the cutter edge is easy to be sharpened, and the cutter edge is easier to be sharpened by the sharpening edge and has a better sharpening effect.

Referring to fig. 2 and 3, the motor 21 is fixedly installed inside the housing and is located at the back sides of the two grinding wheels 23, the transmission assembly 22 comprises a mounting frame 221, a first gear 222, a second gear 223, a third gear 224, a fourth gear 225, a fifth gear 226 and a sixth gear 227, the mounting frame 221 is located between the motor 21 and the two grinding wheels 23 and fixedly connected with the housing 1, a driving shaft of the motor 21 is connected with the first gear 222, the second gear 223 is fixedly connected with the third gear 224 and coaxially arranged and is rotatably installed on the mounting frame 221, the fourth gear 225 is fixedly connected with one grinding wheel 23 and coaxially arranged, the fifth gear 226 is fixedly connected with the other grinding wheel 23 and coaxially arranged, the first gear 222 is meshed with the second gear 223, the third gear 224 is meshed with the fourth gear 225, the sixth gear 227 is arranged between the fifth gear 226 and the third gear 224, the fifth gear 226 and the third gear 224 are meshed with the sixth gear 227, the rotation directions of the two meshed gears are opposite to each other during transmission, the rotation directions of the two gears are opposite, the motor 21 drives the first gear 222 and the third gear 225 and the fourth gear 225 to rotate in the opposite directions of the rotation directions of the fourth gear 225, and the rotation directions of the fourth gear 225 and the fourth gear 227 are different from the rotation directions of the fourth gear 225 are rotatably opposite to the fourth gear 224, and the rotation directions of the fourth gear 225 is easy to realize the opposite rotation directions of the fourth gear 225 and the grinding edges.

Further, both grinding wheels 23 are diamond grinding wheels 23, and are suitable for cutters made of hard alloy, glass, ceramic and other difficult-to-process materials.

Referring to fig. 1 and 4, still further, the bottom of the housing 1 is provided with a suction cup assembly 3, the suction cup assembly 3 includes a fixing frame 31, a suction cup pad 32, a turntable 33, a connecting rod 34, a deflector rod 35, and a cross pin 36, the fixing frame 31 is fixed at the bottom of the housing 1, the turntable 33 is vertically arranged in a cylindrical shape and is rotationally connected with the fixing frame 31, the turntable 33 is provided with a hole penetrating through the turntable 33 from top to bottom, the connecting rod 34 penetrates through the hole, the suction cup pad 32 is located below the turntable 33, the suction cup pad 32 is fixedly connected with the fixing frame 31, one end of the connecting rod 34 is fixedly connected with the top surface of the suction cup pad 32, a through hole is formed in the side wall of the connecting rod 34, the cross pin 36 penetrates through the through hole and is in interference fit with the through hole, the turntable 33 is provided with two slides 331 which are arc-shaped and surround, one end side walls of the cross pin 36 are in opposite ascending directions, the other end side walls of the cross pin 36 are in butt joint with the slide surfaces of one slide 331, the other end walls of the cross pin 36 are in butt joint with the slide surfaces of the other slide 331, the side walls of the cross pin 35 are fixedly connected with the side walls of the turntable 33 for poking the turntable 33, the side walls of the turntable 33 are used for rotating, the side walls of the slide 33, the side surfaces of the housing 1 are provided with a through hole 13, and the movable deflector rod 35 is provided for poking the housing 1, and the side 13 passes through the space for moving out of the housing 1.

The implementation principle of the double-grinding wheel knife sharpener of the application is as follows: when the cutter is used, the shell 1 is placed on a smooth supporting surface, the sucker pad 32 is abutted with the supporting surface, a closed cavity is formed between the sucker pad 32 and the supporting surface, the rotary table is stirred through the deflector rod 35, two ends of the transverse pin 36 climb to the high point of the slide 331 or move to the low point of the slide 331, when the two ends of the transverse pin 36 climb to the high point of the slide 331, the connecting rod 34 is driven to rise, the sucker pad 32 is pulled up by the connecting rod 34, the space of the closed cavity is enlarged, the air pressure in the closed cavity is smaller than the air pressure outside, the sucker pad 32 is adsorbed on the supporting surface to fix the shell 1, the cutter is placed in one sharpening slot 11, one side face of the cutter is abutted against the inclined side face of the sharpening slot 11, the other side face of the cutter is abutted against the sharpening face of the grinding wheel 23, the motor 21 drives the two grinding wheels 23 to synchronously rotate and reversely rotate, the cutter is slid along the extending direction of the sharpening slot 11, after one side face of the cutter can be polished, the cutter is placed in the other slot 11 to polish, the cutter is abutted against the other side face of the cutter, the two side faces of the cutter cannot be polished, and the two side faces of the cutter are not polished, and the two side faces of the cutter are in contact with the sharpening direction of the cutter are not polished, and the sharpening effect is easy.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A double grinding wheel knife sharpener, which is characterized in that: including shell (1) and set up in the sharpening mechanism (2) on the inside top of shell (1), sharpening mechanism (2) include motor (21), drive assembly (22) and two emery wheel (23), two emery wheel (23) are the button form, shell (1) top surface concave be equipped with two sharpening groove (11), two emery wheel (23) all be vertical put and rotate install in the inside of shell (1), two emery wheel (23) are located two between sharpening groove (11) and are arranged side by side, two the periphery of emery wheel (23) is the mill face and is in same horizontal plane, shell (1) are in two sharpening groove (11) are close to one side of emery wheel (23) all sets up the opening, two emery wheel (23) one side stretches out respectively to two through the opening in sharpening groove (11), motor (21) are fixed in shell (1) are inside, two grinding wheel (23) all with drive assembly (22) are connected and are in the same horizontal plane, two rotation direction (22) are passed through to the drive assembly (22).

2. The dual wheel sharpener of claim 1, wherein: the other side face of the knife sharpening groove (11) opposite to the opening is an inclined face (12), and an included angle between the inclined face (12) of the knife sharpening groove (11) and the height direction of the shell (1) is 10-18 degrees.

3. The dual wheel sharpener of claim 1, wherein: the transmission assembly (22) comprises a mounting frame (221), a first gear (222), a second gear (223), a third gear (224), a fourth gear (225), a fifth gear (226) and a sixth gear (227), wherein a driving shaft of the motor (21) is connected with the first gear (222) to drive the first gear (222) to rotate, the second gear (223) and the third gear (224) are fixedly connected and coaxially arranged and are all rotatably mounted on the mounting frame (221), the fourth gear (225) is fixedly connected and coaxially arranged with one grinding wheel (23), the fifth gear (226) is fixedly connected with the other grinding wheel (23) and coaxially arranged, the first gear (222) is meshed with the second gear (223), the third gear (224) is meshed with the fourth gear (225), the sixth gear (227) is arranged between the fifth gear (226) and the third gear (224), and the fifth gear (226) are fixedly connected with the third gear (227) and are fixedly arranged on the mounting frame (221), and the sixth gear (227) is meshed with the mounting frame (1).

4. The dual wheel sharpener of claim 1, wherein: the bottom of the shell (1) is provided with a sucker assembly (3), the sucker assembly (3) comprises a fixing frame (31), a sucker pad (32), a turntable (33), a connecting rod (34), a deflector rod (35) and a transverse pin (36), the fixing frame (31) is fixed at the bottom of the shell (1), the turntable (33) is vertically arranged and rotationally connected with the fixing frame (31), the turntable (33) is provided with an opening penetrating through the turntable (33) from top to bottom, the connecting rod (34) penetrates through the opening, the sucker pad (32) is positioned below the turntable (33), the periphery of the sucker pad (32) is fixedly connected with the fixing frame (31), one end of the connecting rod (34) is fixedly connected with the top surface of the sucker pad (32), a through hole is formed in the side wall of the connecting rod (34), the transverse pin (36) penetrates through the through hole and is in interference fit with the through hole, two sliding slides (331) which are arranged in a surrounding mode in the opening, one side wall (331) abuts against one end part (331) of the other side wall (331) in the opposite to the sliding surface (36), the deflector rod (35) is fixedly connected with the side wall of the rotary table (33) and used for stirring the rotary table (33) to rotate.