阅读说明：本技术 一种手持式电动磨刀器 (Hand-held electric knife sharpener ) 是由 赵大贵 于 2021-09-06 设计创作，主要内容包括：本发明公开了一种手持式电动磨刀器,属于磨刀器械技术领域,解决了现有技术中的磨刀器在更换磨轮时步骤复杂,导致使用不方便、手持磨刀器刃磨角度固定,不能同时满足不同使用功能要求的刀具的问题,本发明包括机壳,所述机壳内上下分隔形成两部分,机壳内的上部分安装有电源操作装置,机壳内的下部分安装有电机,所述电机连接有伸出机壳底部的电机轴,所述电机轴端部连接有碟式磨轮,电机轴上开设有环形槽,所述环形槽内安装有弹簧支架,所述弹簧支架与碟式磨轮之间连接有弹簧锁扣,所述弹簧锁扣与碟式磨轮固定连接,弹簧锁扣与弹簧支架卡接。本发明的磨刀器磨轮更换只需直取直插,更换方便,可适用于多种场景。(The invention discloses a handheld electric knife sharpener, belongs to the technical field of knife sharpening instruments, and solves the problems that the knife sharpener in the prior art is inconvenient to use due to complicated steps when a grinding wheel is replaced, the sharpening angle of the handheld knife sharpener is fixed, and cutters with different use function requirements cannot be met simultaneously. The grinding wheel of the knife sharpener of the invention only needs to be directly inserted for replacement, is convenient for replacement and is suitable for various scenes.)

1. The utility model provides an electronic sharpener of hand-held type, its characterized in that, includes casing (1), separate formation two parts from top to bottom in casing (1), power operating means is installed to the top in casing (1), and lower part in casing (1) installs motor (2), motor (2) are connected with motor (2) axle that stretches out casing (1) bottom, motor (2) axle end connection has disc type emery wheel (4), and the epaxial ring channel that has seted up of motor (2), install spring bracket (13) in the ring channel, be connected with spring catch (12) between spring bracket (13) and disc type emery wheel (4), spring catch (12) and disc type emery wheel (4) fixed connection, spring catch (12) and spring bracket (13) joint.

2. The hand-held electric knife sharpener according to claim 1, wherein a compression spring (11) is further connected between the disc grinding wheel (4) and the shaft of the motor (2), the compression spring (11) is fixedly connected to the shaft of the motor (2), and the compression spring (11) is in contact with the disc grinding wheel (4) and is arranged at the periphery of the spring lock catch (12).

3. The hand-held electric sharpener according to claim 2, wherein the hold-down spring (11) comprises a ring (112) and a plurality of spring feet (111) connected to the ring (112), the spring feet (111) being welded to the ring (112).

4. The hand-held electric knife sharpener according to claim 1, characterized in that a knife rest fixing screw (3) is arranged at the bottom of the housing (1), a knife rest (5) is connected below the housing (1) through the knife rest fixing screw (3), and a grinding wheel adjusting device is further connected between the knife rest (5) and the housing (1).

5. The hand-held electric knife sharpener according to claim 4, characterized in that the grinding wheel adjusting device comprises a cylindrical helical compression spring (7) connected between the machine shell (1) and the grinding tool holder (5), the upper end of the cylindrical helical compression spring (7) is fixedly connected with the machine shell (1) through a nut (8), and the lower end of the cylindrical helical compression spring (7) is fixedly connected with the grinding tool holder (5) through an angle adjusting screw (6).

6. The hand-held electric knife sharpener according to claim 5, characterized in that the upper end of the cylindrical helical compression spring (7) is connected with an angle pointer (16), the angle pointer (16) is connected to the cylindrical helical compression spring (7) through a pointer screw (15), and the housing (1) is provided with a scale groove matched with the angle pointer (16).

7. The hand-held electric sharpener according to claim 1, wherein the spring lock catches (12) are arranged in four around the center point of the disc grinding wheel (4), the power operation device comprises an integrated power panel (9), the integrated power panel (9) is provided with a USB power jack (14), and the housing (1) is further provided with a button switch (10).

Technical Field

The invention belongs to the technical field of knife grinding instruments, and particularly relates to a handheld electric knife sharpener.

Background

The sharpener is a device used for trimming tools, and is mostly used for trimming metal cutting tools made of high-speed steel. And is used for trimming hard alloy and other superhard cutting tools. The knife sharpener is simple and convenient to sharpen, and the sharpened blade edge is on a straight line, so that the service strength of the blade is increased compared with manual sharpening, and the service life and the processing capacity of the blade are increased.

The common knife sharpener has a lathe structure and comprises a sharpener body, a workbench, a slide carriage, a reduction electrode, a grinding head and an electric appliance, and is characterized in that the grinding head is even and stable in feeding, and the sharpener is suitable for machining various straight-edge cutters.

Compared with large machines of knife sharpeners, the hand-held knife sharpener is suitable for various manual hand-held industrial and household scenes in more scenes due to the convenient and flexible use mode of the hand-held knife sharpener.

The hand-held sharpener in the prior art has the defects that the grinding wheel is complex to replace, a plurality of steps are needed during disassembly and assembly, the sharpener is easy to install and is not in place, and potential safety hazards exist, so that the working efficiency is low when the sharpener needs to replace grinding wheels with different thicknesses. In addition, the same tool is used for tools with different functions

Disclosure of Invention

The invention aims to:

the hand-held electric knife sharpener aims at solving the problems that the knife sharpener in the prior art is inconvenient to use due to complicated steps when the grinding wheel is replaced, and the knife sharpening angle of the hand-held knife sharpener is fixed and the inclination angle of the cutting edge cannot be adjusted.

The technical scheme adopted by the invention is as follows:

the utility model provides a hand-held type electric knife sharpener, includes the casing, separate formation two parts from top to bottom in the casing, power operating means is installed to the upper portion in the casing, and the lower part in the casing is installed the motor, the motor is connected with the motor shaft that stretches out chassis bottom, motor shaft end connection has the dish formula emery wheel, has seted up the ring channel on the motor shaft, install spring bracket in the ring channel, be connected with spring lock between spring bracket and the dish formula emery wheel, spring lock and dish formula emery wheel fixed connection, spring lock and spring bracket joint.

Furthermore, a compression spring is connected between the disc-type grinding wheel and the motor shaft, the compression spring is fixedly connected to the motor shaft, and the compression spring is in contact with the disc-type grinding wheel and arranged on the periphery of the spring lock catch.

Further, the pressing spring comprises a circular ring and a plurality of spring pressing feet connected to the circular ring, and the spring pressing feet are connected with the circular ring in a welding mode.

Further, a knife rest fixing screw is arranged at the bottom of the machine shell, a knife grinding rest is connected to the lower portion of the machine shell through the knife rest fixing screw, and a grinding wheel adjusting device is connected between the knife grinding rest and the machine shell.

Further, the grinding wheel adjusting device comprises a cylindrical helical compression spring connected between the machine shell and the grinding tool holder, the upper end of the cylindrical helical compression spring is fixedly connected with the machine shell through a nut, and the lower end of the cylindrical helical compression spring is fixedly connected with the grinding tool holder through an angle adjusting screw.

Furthermore, the upper end of the cylindrical helical compression spring is connected with an angle pointer, the angle pointer is connected to the cylindrical helical compression spring through a pointer screw, and a scale groove matched with the angle pointer is formed in the casing.

Further, the spring lock catch is provided with four around the central point of dish formula emery wheel, power operation device includes integrated power supply board, be provided with USB power jack on the integrated power supply board, still install button switch on the casing.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the cost is low-the rigid plastic shell is formed by one-time injection molding, the process is simple, and the charging head of the mobile phone is adopted for supplying power, so that the cost of power supply equipment is saved.

2. The knife is simple to use, is started by one key through a button switch, is held by a single hand, is placed on the knife face, and slides left and right along the direction of the cutting edge, and has extremely light weight of about 100 g.

3. Can prevent overheating annealing, namely the motor is at a low rotating speed of about 300r/Min, the grinding pressure is provided by a compression spring, and the overheating annealing of the cutting edge caused by excessive manual pressure can be prevented.

4. The grinding wheel is simply and quickly replaced, namely the disc type grinding wheel is directly pulled out during disassembly, the grinding wheel is directly pressed in during assembly, and the spring lock catch provides pressing force and is fixed on a motor shaft.

5. The blade angle is uniform-the knife sharpening frame moves on the knife surface, the angle between the knife sharpening frame and the grinding wheel (namely the blade inclination angle after grinding) is fixed and unchanged, and the blade inclination angle after grinding can be kept completely consistent.

6. The multifunctional knife edge has the advantages that the multifunctional knife edge is suitable for different blade inclination angles required by multipurpose knife tools, namely kitchen knife tools in the purposes of chopping, cutting and the like, the required sharpening angle can be selected by rotating the nut, and the adjustable range is as follows: the single-side edge inclination angle is 5-35 degrees.

7. Safe and reliable-low voltage 24v power supply, low rotating speed operation, insulating shell, ensuring the safety of use.

8. Because the grinding wheel is convenient to disassemble and assemble, various grinding wheels such as edging, coarse grinding (100 meshes), fine grinding (800 meshes), fine grinding (2000 meshes) and the like can be configured, and different requirements of different users on the precision of the cutting edge of the cutter can be met.

Drawings

FIG. 1 is an overall view of the sharpener of the present invention;

FIG. 2 is a view showing the structure of the loading and unloading of the disc-type grinding wheel;

FIG. 3 is a block diagram of a spring support;

FIG. 4 is a block diagram of a hold-down spring;

fig. 5 is a top view of fig. 4.

The labels in the figure are: 1-machine shell, 2-motor, 3-tool rest fixing screw, 4-disc type grinding wheel, 5-tool rest, 6-angle adjusting screw, 7-cylindrical helical compression spring, 8-nut, 9-integrated power supply board, 10-button switch, 11-pressing spring, 111-spring presser foot, 112-circular ring, 12-spring lock catch, 13-spring support, 14-USB power supply jack, 15-pointer screw and 16-angle pointer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The utility model provides a hand-held type electric knife sharpener, as shown in fig. 1-2, including casing 1, separate formation two parts from top to bottom in the casing 1, power operating means is installed to the top in the casing 1, lower part in the casing 1 installs motor 2, motor 2 is connected with the motor 2 axle that stretches out the casing 1 bottom, motor 2 axle end connection has disc-type emery wheel 4, the epaxial ring channel of having seted up of motor 2, install spring bracket 13 in the ring channel, be connected with spring catch 12 between spring bracket 13 and the disc-type emery wheel 4, spring catch 12 and disc-type emery wheel 4 fixed connection, spring catch 12 and spring bracket 13 joint.

The casing 1 can be made of hard plastics, the disk-shaped grinding wheel is specially made, and the grinding wheel is made of silicon carbide and is manufactured into three specifications of 300 meshes, 800 meshes and 2000 meshes according to the size of silicon carbide particles. The grinding machine is respectively used for rough grinding (primary grinding when the cutter has a larger notch), fine grinding (cutters with general functional requirements such as chopper and common vegetable cutter and grinding for linear shaping of the cutting edge of the cutter) and accurate grinding with higher requirements (when the cutting edge of the cutter is extremely sharp as required by slicing and the like).

When the grinding wheel is installed, the spring support 13 is installed on the annular groove of the shaft of the motor 2, the pressing spring 11 is sleeved on the shaft of the motor 2, the center of the spring lock catch 12 connected with the grinding wheel is aligned with the shaft of the motor 2, the spring lock catch 12 is pushed in slightly with force, the spring lock catch 12 is clamped on the spring support 13, and when the grinding wheel is removed, the grinding wheel is held and pulled out slightly with force.

Example 2

On the basis of embodiment 1, a pressing spring 11 is further connected between the disc-type grinding wheel 4 and the shaft of the motor 2, the pressing spring 11 is fixedly connected to the shaft of the motor 2, and the pressing spring 11 is in contact with the disc-type grinding wheel 4 and is arranged on the periphery of the spring lock 12.

Further, the pressing spring 11 comprises a circular ring 112 and a plurality of spring pins 111 connected to the circular ring 112, and the spring pins 111 are welded to the circular ring 112.

Example 3

On the basis of embodiment 1, a knife rest fixing screw 3 is arranged at the bottom of the machine shell 1, a knife grinding rest 5 is connected to the lower part of the machine shell 1 through the knife rest fixing screw 3, and a grinding wheel adjusting device is connected between the knife grinding rest 5 and the machine shell 1.

Preferably, the grinding wheel adjusting device comprises a cylindrical helical compression spring 7 connected between the machine shell 1 and the grinding wheel holder 5, the upper end of the cylindrical helical compression spring 7 is fixedly connected with the machine shell 1 through a nut 8, and the lower end of the cylindrical helical compression spring 7 is fixedly connected with the grinding wheel holder 5 through an angle adjusting screw 6.

Preferably, an angle pointer 16 is connected to the upper end of the cylindrical helical compression spring 7, the angle pointer 16 is connected to the cylindrical helical compression spring 7 through a pointer screw 15, and a scale groove matched with the angle pointer 16 is formed in the casing 1.

The knife sharpening frame 5 is a positioning support bracket of the knife sharpener on the knife. Made of 0.5mm stainless steel plate. An operator holds the knife sharpener by hand, places the bracket on planes on two sides of the cutter, and moves the bracket front and back and left and right to enable the grinding wheel to grind the cutting edge of the cutter.

The angle adjusting screw 6 moves up and down by rotating the nut 8, thereby realizing the change of the sharpening angle. The angle indicator 16 moves up and down with the cylindrical helical compression spring 7. And sharpening angle data and characters are engraved on the outer wall of the shell at the tip of the pointer (the sharpening angle determines an angle recommended value and characters according to the use function requirement of the cutter, the hardness requirement of a cut object and a chopped object and the like).

Example 4

On the basis of embodiment 1, four spring latches 12 are arranged around the center point of the disc-type grinding wheel 4, the power supply operation device comprises an integrated power supply board 9, a USB power jack 14 is arranged on the integrated power supply board 9, and a button switch 10 is further arranged on the housing 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.