CN220740774U - Knife sharpener - Google Patents

Abstract

The utility model discloses a knife sharpener, which comprises a frame and a sharpening block, wherein a cutter seat capable of sliding up and down is arranged in the frame and is used for clamping a knife back; the polishing block is pivotally arranged in the frame, the surface of the polishing block is provided with a plurality of polishing surfaces, and an included angle is formed between two adjacent polishing surfaces; the polishing device comprises two polishing blocks, wherein polishing grooves for clamping the cutting edges are formed between the two polishing blocks, so that the polishing surfaces are abutted with the surfaces of the cutting edges. Utilize cutter saddle centre gripping back of a knife for the stage property can slide from top to bottom along with the cutter saddle, makes the groove of polishing between two blocks of polishing polish to the cutting edge both sides surface of cutter, and when one of them face wearing and tearing of polishing, it is rotatory directly to polish the block, and utilizes another face of polishing to polish to the cutting edge, need not often change the block of polishing, improves whole polishing efficiency.

Description

Knife sharpener

Technical Field

The utility model relates to the field of polishing equipment, in particular to a knife sharpener.

Background

After the cutter is used for a period of time, the cutter needs to polish the cutter edge to ensure the sharpness of the cutter edge, and the abrasive surface is required to approach the cutter edge part at a certain angle in the polishing process so as to match the included angle of the cutter edge. The existing polishing angle adjusting method comprises the following steps: the angle clearance is automatically compensated by using a screw rod for manual adjustment or using a spring, or the flexible millstone is automatically clamped after the screw rod is added by a transverse motor to approach. In other prior art, the utility model is as claimed in the patent application number cn20110213554. X: knife sharpeners for asia and european/american knives use fixed angle fluted grinding wheels, but only grind a single angle edge at a time.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the knife sharpener which can compensate abrasion of an abrasive surface, match the included angle of a knife edge in real time and improve the polishing efficiency.

According to the knife sharpener, the knife sharpener comprises a frame and a sharpening block, wherein a cutter seat capable of sliding up and down is arranged in the frame and is used for clamping a knife back; the polishing block is pivotally arranged in the frame, the surface of the polishing block is provided with a plurality of polishing surfaces, and an included angle is formed between two adjacent polishing surfaces; the polishing device comprises two polishing blocks, wherein polishing grooves for clamping the cutting edges are formed between the two polishing blocks, so that the polishing surfaces are abutted with the surfaces of the cutting edges.

The knife sharpener according to the embodiment of the utility model has at least the following beneficial effects: utilize cutter saddle centre gripping back of a knife for the stage property can slide from top to bottom along with the cutter saddle, makes the groove of polishing between two blocks of polishing polish to the cutting edge both sides surface of cutter, and when one of them face wearing and tearing of polishing, it is rotatory directly to polish the block, and utilizes another face of polishing to polish to the cutting edge, need not often change the block of polishing, improves whole polishing efficiency.

According to some embodiments of the utility model, the housing is provided with a support plate, which is slidable in the housing, the tool holder being fixed to the support plate.

According to some embodiments of the utility model, the surface of the tool holder is provided with a slider, the side wall of the frame is provided with a guide rail, the slider is in sliding connection with the guide rail, wherein the slider slides on the guide rail so that the grinding groove moves along the edge line of the cutting edge.

According to some embodiments of the utility model, a return spring is provided between the support plate and the bottom of the frame.

According to some embodiments of the utility model, the sanding block is coupled to a stepper motor.

According to some embodiments of the utility model, the rotational directions of the two sanding blocks are different.

According to some embodiments of the utility model, the number of the polishing surfaces is plural among the plural polishing surfaces.

According to some embodiments of the utility model, a water spray pipe is arranged on the frame, one end of the water spray pipe is connected with an external water source, and the other end of the water spray pipe faces the polishing surface of the polishing groove.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of one direction of a sharpener according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of an operational state of the sharpener according to the present utility model;

fig. 3 is a schematic view of another working state of the sharpener according to the embodiment of the present utility model;

fig. 4 is a schematic view of another orientation of a sharpener according to an embodiment of the present utility model;

fig. 5 is a schematic view of a sharpening block of a sharpener according to an embodiment of the present utility model.

10. A cutter; 100. a frame; 110. a support base; 120. a guide rail; 130. a return spring; 200. a cutter seat; 210. a slide block; 300. polishing the block; 310. polishing the surface; 320. a stepping motor; 400. a water spray pipe;

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 5, the sharpener according to the embodiment of the present utility model includes a frame 100 and a sharpening block 300, wherein a tool holder 200 capable of sliding up and down is provided in the frame 100, and the tool holder 200 is used for holding a back of a knife; the polishing block 300 is pivotally arranged in the frame 100, the surface of the polishing block 300 is provided with a plurality of polishing surfaces 310, and an included angle is formed between two adjacent polishing surfaces 310; wherein, the polishing blocks 300 are provided in two, and a polishing groove for clamping the blade is formed between the two polishing blocks 300 so that the polishing surface 310 is abutted against the surface of the blade.

In the process of actual use, referring to fig. 2 and 3, the tool holder 200 is used to clamp the back of the tool, so that the prop can slide up and down along with the tool holder 200, the polishing grooves between the two polishing blocks 300 polish the two side surfaces of the cutting edge of the tool 10, when one polishing surface 310 is worn, the polishing block 300 is directly rotated, and the other polishing surface 310 is used to polish the cutting edge, so that the polishing block 300 does not need to be replaced frequently, and the overall polishing efficiency is improved.

Specifically, referring to fig. 4, the sanding block 300 is rotated to continue to abrade the blade with the (less worn) sanding surface 310, specifically, to rotate the abraded sanding surface 310, actively use the remaining unworn flat surface to complement the angle and clamp the blade, or directly rotate the sanding block 300 to another sanding surface 310 to reclampe the blade with another sanding surface 310.

Preferably, referring to fig. 2, in order to achieve the up-and-down elevation of the tool holder 200, the frame 100 is provided with a support plate, which is slidable in the frame 100, and the tool holder 200 is fixed to the support plate. Wherein, utilize the lift of backup pad for cutter 10 can be from the tip, slide in the groove of polishing, in the in-process of groove of polishing slip, the face 310 of polishing directly with two sides butt of cutting edge, and produce the friction with two sides of cutting edge, in the friction process, the face 310 of polishing polishes the surface of cutting edge, thereby accomplish the complete polishing of the cutting edge of whole prop, and further, in order to guarantee to polish the cutting edge of cutter 10 accurately, the surface of cutter holder 200 is provided with slider 210, the lateral wall of frame 100 is provided with guide rail 120, slider 210 and guide rail 120 sliding connection, wherein, slider 210 slides at guide rail 120, so that the groove of polishing removes along the sword line of cutting edge. When the tool 10 moves with the tool holder 200, the cutting edge moves with the tool 10, and the cutting edge is curved, so the guide rail 120 is correspondingly curved to match the curved line of the cutting edge, so that the grinding groove can move along the edge line of the cutting edge and grind the cutting edge through the grinding surface 310.

Preferably, referring to fig. 1 and 2, a return spring 130 is provided between the support plate and the bottom of the frame 100. The return spring 130 serves to automatically return the support plate.

Preferably, referring to fig. 2, the sanding block 300 is coupled with a stepper motor 320. The stepper motor 320 can accurately rotate the sanding block 300, so that the rotating angle of the sanding block 300 is controllable, the formed sanding groove can accurately clamp the blade, and sufficient pressure is applied to the blade, so that the blade is sanded.

Preferably, referring to fig. 4, the rotation directions of the two sanding blocks 300 are different. The two sanding blocks 300 with opposite rotational directions can move the sanding faces 310 of the two sanding blocks 300 relative to each other and clamp the blade.

Preferably, in order to match different polishing effects, the number of the polishing surfaces 310 is plural among the plurality of polishing surfaces 310. The polishing surface 310 is selected according to the actual requirement, so that the frequency of replacing the polishing block 300 can be reduced, and the convenience of the polishing process can be improved.

Preferably, in polishing, referring to fig. 1, both the polishing block 300 and the blade may generate heat, and heat accumulation may cause the blade portion to become fragile, resulting in easy damage thereof, and for this reason, the stand 100 is provided with a water spray pipe 400, one end of which is connected to an external water source, and the other end of which faces the polishing surface 310 of the polishing groove. Tap water is continuously sprayed into the grinding groove to cool the blade and the grinding block 300, thereby ensuring the grinding effect.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (8)

1. A sharpener, comprising:

a machine frame (100) is internally provided with a cutter seat (200) capable of sliding up and down, and the cutter seat (200) is used for clamping a cutter back;

the polishing block (300) is pivotally arranged in the frame (100), a plurality of polishing surfaces (310) are arranged on the surface of the polishing block (300), and an included angle is formed between two adjacent polishing surfaces (310);

the two polishing blocks (300) are provided with two polishing grooves for clamping the cutting edge, and the polishing grooves are formed between the two polishing blocks (300) so that the polishing surface (310) is abutted with the surface of the cutting edge.

2. The sharpener according to claim 1, characterized in that the housing (100) is provided with a support plate, which is slidable in the housing (100), the tool holder (200) being fixed on the support plate.

3. The sharpener according to claim 1 or 2, characterized in that the surface of the tool holder (200) is provided with a slide (210), the side wall of the housing (100) being provided with a guide rail (120), the slide (210) being in sliding connection with the guide rail (120), wherein the slide (210) slides on the guide rail (120) for moving the sharpening slot along the edge line of the blade.

4. The sharpener of claim 2, wherein a return spring (130) is provided between the support plate and the bottom of the housing (100).

5. The sharpener of claim 1, wherein the sharpening block (300) is connected with a stepper motor (320).

6. The sharpener of claim 1 or 5, wherein the rotation direction of the two sharpening blocks (300) is different.

7. The sharpener of claim 1, wherein among a plurality of said sharpening faces (310), said sharpening faces (310) have a plurality of mesh sizes.

8. The sharpener of claim 1, wherein a water spray pipe (400) is provided on the housing (100), one end of the water spray pipe (400) being connected to an external water source, the other end being directed toward the sharpening face (310) of the sharpening slot.