Patent Application
20250100098
The present application relates to the field of knife sharpeners, and more particularly, to an electric knife sharpener for elastically grinding double edges.
At present, most of the electric knife sharpeners on the market only grind one cutting edge one time; conventional kitchen knives are double-edged, and only one edge is ground at a time. After all, the cutter is pulled manually. The difference in skill, weight, etc. between the two grindings will cause the two edges of the ground blade to be asymmetrical, which will affect the sharpness degree of the cutter and low grinding efficiency.
In addition, in the market, a manual knife sharpener is commonly used to simultaneously sharpen double edges, the grinding wheel is fixed, it only can be sharpened at one angle, and the included angle of the cutting edge of the kitchen knife is different, so there is a certain limitation in use.
Finally, the electric knife sharpener on the market needs to fix the knife body with the sharpener notch to achieve the same angle, which may cause plastic friction between the knife body and the notch part and may scratch the knife body and damage the cutter. The notch of the grinding tool is wide, the root and tip of the cutter cannot contact the grinding wheel, which results in the root and tip of the cutter cannot be ground the cut well, and there is a blind zone in the grinding of the cutter.
The technical problem to be solved by the present application is that an electric knife sharpener for elastically grinding double edges is provided, which can grind both cutting edges of the cutter simultaneously one time, improving the grinding efficiency, the inner grinding wheel is in elastic contact with the cutting edges of the cutter, and protect the cutter. In order to solve the above-mentioned technical problem, the technical solution adopted by the present application is: an electric knife sharpener for elastically grinding double edges, comprising a base, an electric motor, a rotating shaft, a guide cover and a grinding assembly, wherein the electric motor is mounted on the base, the rotating shaft is mounted on the electric motor, a driving pin is convexly arranged on the rotating shaft, the grinding assembly comprises two grinding discs, the grinding surfaces of the two grinding discs are arc-shaped and the grinding surfaces are arranged opposite to each other, one side of the grinding discs facing away from the grinding surfaces thereof is provided with a sliding shaft sleeve, the sliding shaft sleeve is sleeved on the rotating shaft, and the sliding shaft sleeve is provided with a sliding groove extending along the length direction of the rotating shaft, the driving pin is slidably mounted in the sliding groove; a compression spring is further sleeved on the sliding shaft sleeve, and the compression spring is connected to the driving pin; The guide cover is mounted on the base and is covered on the grinding assembly, the guide cover is provided with a grinding groove at a position corresponding to the grinding assembly, the extending axis of the grinding groove is obliquely arranged with respect to the central axis of the rotating shaft, and the grinding surface of one of the grinding discs is exposed at one end of the grinding groove, and the grinding surface of the other grinding disc is exposed at the other end of the grinding groove.
The beneficial effects of the present application are:
In order to explain the technical contents, the achieved objects, and the effects of the present application in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
With reference to
It can be seen from the above description that the beneficial effects of the present application are as follows: by arranging the sliding shaft sleeve 42 and the compression spring 43 on the side of the grinding disc 41 facing away from the grinding surface thereof, the elastic contact between the grinding disc 41 and the cutter is realized, and the elastic adjustment can be realized according to the size of the cutting edge, without changing the cutting edge angle of the original and protecting the cutter; the extending axis of the grinding groove 51 is obliquely arranged with respect to the central axis of the rotating shaft 3, and the grinding surface of one grinding disc 41 is exposed at one end of the grinding groove 51 and the grinding surface of the other grinding disc 41 is exposed at the other end of the grinding groove 51, so that both cutting edges of the cutter can maintain effective contact with the grinding surface of the grinding disc 41, eliminating the grinding blind area.
Further, guide cover 5 is further provided with a guide opening 52 in communication with the grinding groove 51.
It can be seen from the above description that the guide opening 52 can guide the cutter to ensure that the cutter can be accurately placed in the grinding groove 51 for grinding, so as to improve the user's experience.
Further, the number of the grinding assemblies 4 is plural, and the number of the grinding grooves 51 is equal to the number of the grinding assemblies 4.
It can be seen from the above-mentioned description that the provision of multiple sets of grinding assemblies 4 can grind multiple cutters at the same time, improving the grinding efficiency; It is also possible to combine the grinding assemblies 4 with different grinding parameters according to actual application requirements, so as to realize multi-stage grinding. Further, a decorative sheet 6 is further installed on an outer side of the guide cover 5, and the decorative sheet 6 is provided with an avoidance hole 61 at a position facing the grinding groove 51.
It can be seen from the above-mentioned description that decorative sheet 6 can decorate the guide cover 5 and can also play a protective role for the guide cover 5.
Further, the bottom of the base 1 is provided with a waste discharge port 12 at a position corresponding to the grinding assembly 4.
As can be seen from the above description, the waste discharge port 12 facilitates the discharge of scrap generated during the grinding of the cutter.
Further, the base 1 is provided with a waste collection box 9 at a position facing the waste discharge port 12, and the waste collection box 9 is detachably connected to the base 1.
As can be seen from the above description, the waste collection box 9 facilitates the collection of scrap debris for uniform cleaning of the scrap debris.
Further, a magnetic attraction piece is provided in the waste collection box 9.
As can be seen from the above description, the magnetic attraction piece can attract the scrap, ensuring that the scrap falls efficiently into the waste collection box 9 and preventing the scrap from splashing.
Furthermore, the base 1 is provided with a heat dissipation hole 11 at a position corresponding to the electric motor 2.
It can be seen from the above-mentioned description that the heat dissipation hole 11 facilitates heat dissipation of the electric motor 2, avoids overheating of the electric motor 2, and ensures the stability of the operation of the electric motor 2.
Further, the bottom of the base 1 is provided with an anti-skid pad 8.
As apparent from the above description, the anti-skid pad 8 can prevent the base 1 from slipping.
Further, an upper cover 7 is provided, the upper cover 7 is connected to the base 1 and forms a receiving space with the base 1, and the electric motor 2 is installed in the receiving space. It can be seen from the above description that the upper cover 7 facilitates shielding the electric motor 2.
With reference to
Preferably, the guide cover 5 is further provided with a guide opening 52 in communication with the grinding groove 51, wherein the guide opening 52 can guide the cutter to ensure that the cutter can be accurately placed into the grinding groove 51 for grinding, so as to facilitate the improvement of user experience; Specifically, a decorative sheet 6 is further installed an outer side of the guide housing 5, and the decorative sheet 6 is provided with an avoidance hole 61 at a position facing the grinding groove 51, and the decorative sheet 6 can decorate the guide cover 5 and can also play a protective role for the guide cover 5.
As an option, the number of the grinding assemblies 4 is multiple, and the number of the grinding grooves 51 is equal to the number of the grinding assemblies 4, it can be understood that the provision of multiple groups of grinding assemblies 4 can grind multiple cutters at the same time, improving the grinding efficiency; Furthermore, the grinding assembly 4 with different grinding parameters can also be selected and combined according to actual application requirements so as to realize multi-stage grinding; Furthermore, since the extending axis of the grinding groove 51 is obliquely arranged with respect to the central axis of the rotating shaft 3, it is ensured that multiple groups of the grinding assemblies 4 can be mounted on the same rotating shaft 3 to achieve multi-stage synchronous grinding; Alternatively, the grinding surface of the grinding disc 41 is made of a diamond abrasive, and the mesh number of the grinding surface formed by the diamond abrasive may be 360 mesh, 600 mesh or 1000 mesh; In particular, in the present embodiment, the number of the grinding assemblies 4 is three groups, wherein the roughness of the grinding discs 41 used in each group of the grinding assemblies 4 is different; In detail, referring to
Preferably, referring to
In the present embodiment, the base 1 is provided with a heat dissipation hole 11 at a position corresponding to the electric motor 2, and the heat dissipation hole 11 facilitates heat dissipation of the electric motor 2, avoids overheating of the electric motor 2, and ensures the stability of the operation of the electric motor 2; the bottom of the base 1 is further provided with an anti-skid pad 8 capable of preventing the base 1 from slipping; The material of the anti-skid pad 8 is flexible, and the flexible material includes but is not limited to sponge, rubber, silica gel, etc.
In summary, the present application provides that by arranging the sliding shaft sleeve and the compression spring on the side of the grinding disc facing away from the grinding surface thereof, the elastic contact between the grinding disc and the cutter is realized, and the elastic adjustment can be realized according to the size of the cutting edge, without changing the cutting edge angle of the original cutter, and protecting the cutter; the extending axis of the grinding groove is obliquely arranged with respect to the central axis of the rotating shaft, and the grinding surface of one grinding disc is exposed at one end of the grinding groove and the grinding surface of the other grinding disc is exposed at the other end of the grinding groove, so that both cutting edges of the cutter can maintain effective contact with the grinding surface of the grinding disc, eliminating the grinding blind area; The magnetic attraction piece adsorbs the scrap waste, ensures that the scrap waste effectively falls into the waste collection box, and prevents the scrap waste from splashing.
The above-mentioned embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and all changes that come within the meaning and range of equivalency of the present application and the appended claims are to be embraced within their scope.
