CN215469967U

CN215469967U - Electric knife sharpener

Info

Publication number: CN215469967U
Application number: CN202122048120.7U
Authority: CN
Inventors: 魏金国
Original assignee: Wuhan Kind Technology Development Co ltd
Current assignee: Wuhan Kind Technology Development Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-01-11
Anticipated expiration: 2031-08-28

Abstract

The utility model relates to an electric knife sharpener, which comprises a rack and a motor arranged on the rack, wherein a grinding stone driving shaft in transmission connection with the motor is arranged on the rack, a grinding stone fixing frame is fixedly connected to the grinding stone driving shaft, and a conical grinding stone is fixed to the grinding stone fixing frame. The utility model has small abrasion loss to the cutter, no abrasive particles splash and scatter, and can avoid the environmental pollution of sharpening. The precision is higher, satisfies the sharp requirement of cutter. Convenient, easy operation can improve speed and effect, safety laborsaving of whetting a knife.

Description

Electric knife sharpener

Technical Field

The utility model relates to a device for grinding a cutter, in particular to an electric knife sharpener.

Background

In the prior art, when a cutter is not sharp or a notch is cut carelessly after the cutter is used for a long time, the vegetable cutting quality is influenced, and the work efficiency is reduced. The sharpener which appears in recent years in the market is formed by clamping two conical grinding wheel sheets together, a knife is inserted into the sharpener to drag the sharpener back and forth when in use, the abrasion loss of the knife is large, the service life of the knife is short, the knife is low in efficiency and easy to damage, and the like.

Disclosure of Invention

In order to solve the defects of the knife sharpener, the utility model provides an electric knife sharpener which has small knife abrasion amount and no splashing and scattering of abrasive particles and can avoid the environmental pollution of knife sharpening.

The technical scheme provided by the utility model is as follows: the utility model provides an electric knife sharpener, includes the frame and sets up the motor in the frame, is equipped with the grindstone drive shaft of being connected with the motor transmission in the frame, fixedly connected with grindstone mount on the grindstone drive shaft, is fixed with the conical surface grindstone on the grindstone mount.

The cone angle of the conical grinding stone is 160-176 degrees.

The middle part of the conical surface grinding stone is provided with a groove from top to bottom, the bottom of the conical surface grinding stone is provided with a through hole leading to the groove from the bottom surface of the conical surface grinding stone, a grinding stone driving shaft passes through the through hole through a grinding stone fixing frame and extends into the groove, a locking device is arranged in the groove, and the conical surface grinding stone is fixedly connected with the grinding stone fixing frame through the locking device.

The conical surface grindstone is horizontally arranged, and the grindstone driving shaft is perpendicular to the conical surface grindstone and is positioned at the axis of the conical surface grindstone.

The machine frame is provided with a tool rest which is positioned above the side of the conical surface grindstone.

The knife rest comprises a guide rod, an adjusting handle and a shelf movably connected to the guide rod through the adjusting handle, and the guide rod is fixedly connected to the rack.

The water tank is arranged on the rack and located above the side of the conical surface grindstone, the water tank is provided with a cylinder communicated with the water tank, the lower portion of the cylinder is provided with a water outlet hole located above the conical surface grindstone, a cylindrical water quantity adjusting knob is arranged in the cylinder, and a groove communicated with the water tank and the water outlet hole is formed in the bottom of the cylindrical water quantity adjusting knob. A water collecting tank is arranged below the conical grindstone, and a drain pipe is arranged at the bottom of the water collecting tank.

The frame is provided with an annular splash-proof sponge, and the annular splash-proof sponge is positioned around the conical-surface grindstone.

The motor is in transmission connection with the grinding stone driving shaft through a gear transmission mechanism.

The utility model has small abrasion loss to the cutter, no abrasive particles splash and scatter, and can avoid the environmental pollution of sharpening. The precision is higher, satisfies the sharp requirement of cutter. Convenient, easy operation can improve speed and effect, safety laborsaving of whetting a knife.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic view of the construction of the tool holder of the present invention.

FIG. 5 is a schematic view of the reverse grinding operation.

FIG. 6 is a schematic view of the smoothing operation.

Detailed Description

Referring to fig. 1-4, the utility model comprises a frame 6, and a motor 7 and a power switch 5 which are arranged on the frame 6, wherein a grinding stone driving shaft 9 which is in transmission connection with the motor 7 is arranged on the frame 6, a grinding stone fixing frame 12 is fixedly connected on the grinding stone driving shaft 9, and a conical grinding stone 10 is fixed on the grinding stone fixing frame 12.

The cone angle of the conical grinding stone 10 is 160-176 degrees.

The middle part of the conical surface grinding stone 10 is provided with a groove 17 from top to bottom, the bottom of the conical surface grinding stone 10 is provided with a through hole leading to the groove 17 from the bottom surface of the conical surface grinding stone, the grinding stone driving shaft 9 penetrates through the through hole through the grinding stone fixing frame 12 and extends into the groove 17, a locking device 11 is arranged in the groove 17, and the conical surface grinding stone 10 is fixedly connected with the grinding stone fixing frame 12 through the locking device 11.

The conical surface grinding stone 10 is horizontally arranged, and the grinding stone driving shaft 9 is perpendicular to the conical surface grinding stone and is positioned at the axis of the conical surface grinding stone.

The frame is provided with a tool rest 13, and the tool rest 13 is positioned above the side of the conical grinding stone 10.

The knife rest 13 comprises a guide rod 13.1, an adjusting handle 13.2 and a shelf 13.3 movably connected to the guide rod 13.1 through the adjusting handle 13.2, and the guide rod 13.1 is fixedly connected to the frame 6. The angle of the shelf 13.3 can be adjusted by adjusting the handle 13.2. The guide rod 13.1 can be designed into a lifting structure, and the tool rest can be adjusted to lift through a tool rest height adjusting knob 18.

The water tank 1 is arranged on the frame 6, the water tank 1 is located above the side of the conical surface grindstone 10, the water tank 1 is provided with a cylinder 19 communicated with the water tank 1, the lower portion of the cylinder 19 is provided with a water outlet hole 3 located above the conical surface grindstone 10, the top of the cylinder 19 is provided with a cylindrical water quantity adjusting knob 2, and the bottom of the cylinder 19 is provided with a slot 4 communicated with the water outlet hole 3. A water collecting tank 20 is arranged below the conical grinding stone 10, and a drain pipe 8 is arranged at the bottom of the water collecting tank 20.

An annular splash-proof sponge 14 is arranged on the frame, and the annular splash-proof sponge 14 is located around the conical-surface grinding stone 10.

The motor 7 is in transmission connection with the grinding stone driving shaft 9 through a gear transmission mechanism 15. As said motor shaft end mounting gear 16 meshes with the gear box 15. The gear box and the shell are fixed by screws, and a grinding stone fixing frame 12 is arranged on an output shaft of the gear box.

The grinding blade has two directions: and reverse grinding and forward grinding, wherein reverse grinding is adopted during coarse grinding, namely the direction of a blade is opposite to the rotation direction of the grinding stone, and the grinding amount is large at the moment. Smoothing is usually used for finish grinding, i.e. the blade is oriented in the direction opposite to the direction of rotation of the grindstone, so that the blade does not curl. The schematic diagram 5 is shown in the reverse grinding process, and the schematic diagram 6 is shown in the forward grinding process. In the figure, M is the torque output from the shaft end by the motor, and the output torque is constant. m is the external torque at which the tool grinds. The abrasive grains are subjected to the resistance of the tool material to deformation and the frictional force between the abrasive grains and the workpiece surface during grinding, thereby forming grinding force. The angle of the cutter is well controlled during grinding, the cutter is lightly pressed and slightly slides along the sliding direction of the cutter, and therefore the service life of the grinding stone can be prolonged. The included angle of the conical surface of the grindstone is 160-176 degrees, the grindstone cannot be reversely ground after the cutter passes through the central point, and meanwhile, the cutter can conveniently enter and exit and the hand can conveniently hold the grindstone.

The grindstone fixing frame and the conical surface grindstone are fixed by the locking device, and the output shaft of the gear box is provided with left-handed threads (when the gear box is started, the forward rotation is generally adopted, the forward teeth can be loosened in the clockwise rotation process, and the backward teeth can be tightened more and more). The conical surface grindstone has various meshes. Meanwhile, the cutter is convenient to enter and exit and the hand can hold the cutter. The water inlet system comprises a water tank and a water quantity adjusting knob, and the water tank can rotate around a water tank rotating shaft to enable the knife stone to be uniformly wetted. The water inlet system and the water discharge system ensure that the knife is always cooled by water during sharpening, thereby avoiding the reduction of metal performance caused by annealing and ensuring the sharp knife edge after sharpening. And a tool rest is arranged beside the grinding wheel and comprises a shelf, a guide rod and a handle. The knife rest is inserted into the positioning hole of the frame through the two guide rods, the proper height is adjusted through the knife rest height adjusting knob, the proper angle is adjusted through the knife rest angle adjusting knob, and the grinding position of the knife is adjusted through the device, so that the purposes of improving the knife grinding speed and effect, and being safe and labor-saving are achieved. Is suitable for various cutters.

Claims

1. The utility model provides an electric knife sharpener, includes the frame and sets up the motor in the frame, its characterized in that: the frame is provided with a grinding stone driving shaft which is in transmission connection with the motor, the grinding stone driving shaft is fixedly connected with a grinding stone fixing frame, and the grinding stone fixing frame is fixedly provided with a conical surface grinding stone.

2. The electric knife sharpener of claim 1, wherein: the cone angle of the conical grinding stone is 160-176 degrees.

3. The electric knife sharpener of claim 1 or 2, wherein: the middle part of the conical surface grinding stone is provided with a groove from top to bottom, the bottom of the conical surface grinding stone is provided with a through hole leading to the groove from the bottom surface of the conical surface grinding stone, a grinding stone driving shaft passes through the through hole through a grinding stone fixing frame and extends into the groove, a locking device is arranged in the groove, and the conical surface grinding stone is fixedly connected with the grinding stone fixing frame through the locking device.

4. The electric knife sharpener of claim 1 or 2, wherein: the conical surface grindstone is horizontally arranged, and the grindstone driving shaft is perpendicular to the conical surface grindstone and is positioned at the axis of the conical surface grindstone.

5. The electric knife sharpener of claim 1 or 2, wherein: the machine frame is provided with a tool rest which is positioned above the side of the conical surface grindstone.

6. The electric knife sharpener of claim 5, wherein: the knife rest comprises a guide rod, an adjusting handle and a shelf movably connected to the guide rod through the adjusting handle, and the guide rod is fixedly connected to the rack.

7. The electric knife sharpener of claim 1 or 2, wherein: the machine frame is provided with a water tank, the water tank is positioned above the side of the conical surface grindstone, the water tank is provided with a cylinder communicated with the water tank, the lower part of the cylinder is provided with a water outlet hole positioned above the conical surface grindstone, a cylindrical water quantity adjusting knob is arranged in the cylinder, and the bottom of the cylindrical water quantity adjusting knob is provided with a groove communicated with the water tank and the water outlet hole; a water collecting tank is arranged below the conical grindstone, and a drain pipe is arranged at the bottom of the water collecting tank.

8. The electric knife sharpener of claim 1 or 2, wherein: the frame is provided with an annular splash-proof sponge, and the annular splash-proof sponge is positioned around the conical-surface grindstone.

9. The electric knife sharpener of claim 1 or 2, wherein: the motor is in transmission connection with the grinding stone driving shaft through a gear transmission mechanism.