CN201664861U - Knife sharpener - Google Patents

Abstract

The utility model discloses a knife sharpener, comprising a bracket, a grinding wheel is installed on the bracket through a transmission shaft, and a power transmission device is connected to the transmission shaft. The utility model is characterized in that a grinding wheel correction device is installed on the bracket, and the grinding wheel correction device is straddled above the grinding wheel. The utility model replaces the steel wheel with a grinding wheel, and the grinding wheel can be corrected at any time and can be corrected frequently, so that the efficiency and service life are significantly improved; and the worn grinding wheel can be corrected at any time and can be corrected frequently through the grinding wheel correction device, so that the sharpening efficiency and service life of the knife sharpener are significantly improved, the surface of the corrected grinding wheel is smoother, and the processing accuracy is also significantly improved.

Description

a sharpener

technical field

The utility model relates to a knife grinder, in particular to a knife grinder which uses power to drive a grinding wheel to rotate at a high speed to grind the blade of a thread trimmer.

Background technique

The grinding wheel of the knife grinder that grinds the blade of the thread trimmer will wear to a certain extent after working for a period of time. The worn grinding wheel will affect the machining accuracy of the tool, so it needs to be corrected frequently. In the past, the sharpening machine used the steel wheel as the grinding wheel. After the steel wheel was worn, it had to be removed to correct it, and it could not be corrected frequently. The surface of the wheel is relatively rough, and the machining accuracy is not high; while the traditional grinding wheel sharpener is usually not equipped with a grinding wheel correction device, and the grinding wheel still needs to be removed before it can be corrected after it is worn, which will have a certain impact on the processing efficiency.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a sharpening machine, which uses a grinding wheel instead of a steel wheel, and the grinding wheel can be corrected at any time and frequently, so that the sharpening efficiency and the service life of the sharpening machine are obvious Improvement, and the surface of the grinding wheel is smoother, and the machining accuracy is also significantly improved.

The technical scheme that the utility model solves its technical problem adopts is:

A knife grinder includes a bracket on which a grinding wheel is installed through a transmission shaft connected to a power transmission device, and is characterized in that a grinding wheel correction device is installed on the support, and the grinding wheel correction device straddles the grinding wheel.

As a preferred embodiment of the present invention, the grinding wheel correction device includes a track, the two ends of the track are installed on the bracket through the left and right fixing frames, the sliding assembly is installed on the track, and the left and right fixing frames are installed through bearings. There is a screw rod, one end of the screw rod is installed with a hand wheel, a nut is screwed on the screw rod, a drive block is fixedly installed on the nut, a drive card matching with the drive block is installed on the sliding assembly, and an adjustment device is installed on the sliding assembly. Screw rod, one end of the adjusting screw rod is equipped with a diamond pen, and one end of the diamond pen can extend out of the sliding assembly and contact the surface of the grinding wheel.

The above-mentioned sliding assembly includes a slide rail, a slide rail block and an upper and lower slider. The slide rail, the slide rail block and the upper and lower slider are fixedly connected as a whole and can slide along the track. Screw holes are provided on the slide rail, and the adjustment screw And the diamond pen is installed in the screw hole of the slide rail, and one end of the diamond pen can extend out of the screw hole and contact with the surface of the grinding wheel.

The power transmission device described in the utility model includes a motor, a small pulley is installed on the motor shaft of the motor, a large pulley is installed on the transmission shaft, and the small pulley and the large pulley are connected by a belt.

As an improvement of the above-mentioned embodiments of the present utility model, a guide rail cover is installed on the sliding assembly.

The beneficial effects of the utility model are: the utility model is provided with a grinding wheel correction device, through which the worn grinding wheel can be corrected at any time and often, so that the sharpening efficiency of the knife sharpener and the service life of the knife sharpener can be improved. The surface of the corrected grinding wheel is smoother, and the machining accuracy is also significantly improved; and the grinding wheel is used instead of the steel wheel, the grinding wheel can be corrected at any time and can be corrected frequently, and the efficiency and service life are significantly improved.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the three-dimensional exploded schematic view of the utility model;

Fig. 2 is the three-dimensional schematic view of the utility model;

Fig. 3 is a structural schematic diagram of the slide rail and the adjusting screw.

Detailed ways

With reference to Fig. 1, Fig. 2, a kind of sharpening machine disclosed by the utility model comprises a bracket 1, a grinding wheel fixing plate 2 is installed on the bracket 1, a grinding wheel 4 is installed on the grinding wheel fixing plate 2 through a transmission shaft 3, and a grinding wheel 4 is installed on the transmission shaft 3 It is connected with a power transmission device, and the steel wheel is replaced by a grinding wheel. The grinding wheel can be corrected at any time and frequently, and the efficiency and service life are significantly improved. As shown in the figure, in order to facilitate the installation of the transmission shaft, a drum 5 is fixed on the lower part of the grinding wheel fixing plate 2, and a bearing 6 is installed in the drum 5, and the bearing 6 is fixed on the transmission shaft 3, and a large pulley is installed on the transmission shaft 3 7.

A grinding wheel correction device is installed on the bracket 1, and the grinding wheel correction device straddles the top of the grinding wheel, and the worn grinding wheel can be corrected at any time through the grinding wheel correction device, and can be corrected frequently, so that the sharpening efficiency of the knife sharpener is comparable to that of the knife sharpener The service life of the grinding wheel is significantly improved, the surface of the modified grinding wheel is smoother, and the machining accuracy is also significantly improved.

Referring to Fig. 1, Fig. 1 is a three-dimensional exploded schematic diagram of an embodiment of the present invention. The emery wheel correcting device as shown in the figure comprises a track 8, and the two ends of track 8 are installed on the support 1 by left and right fixed frame 9,10, and slide assembly is installed on track 8, and guide rail cover 11 is installed on the slide assembly.

As shown in the figure, the sliding assembly includes a slide rail 12, a slide rail block 13 and an upper and lower block 14, wherein the slide rail 12, the slide rail block 13 and the upper and lower block 14 are fixedly connected as a whole and can be moved along the track. 8 to slide, screw holes 15 are provided on the slide rail 12, as shown in Figure 3. Screw mandrel 16 is installed by bearing 6 between left and right fixed mount 9,10, and screw mandrel 16 can rotate on left and right fixed mount 9,10, and handwheel 17 is installed at one end of screw mandrel 16, and screw mandrel 16 Upper thread is connected with nut 18, and nut 18 is fixedly installed with drive block 19, and the drive card 20 that cooperates with drive block 19 is installed on the slide assembly, and drive block 19 inserts in the drive card 20 (not shown). Adjusting screw rod 21 is installed in the screw hole 15 of slide rail 12, and an end of adjusting screw rod 21 is equipped with diamond pen 22, and one end of diamond pen 22 can extend outside this screw hole 15 and contacts with emery wheel 4 surfaces.

Power transmission device described in the utility model comprises a motor 23, and small pulley 24 is installed on the motor shaft of motor 23, is connected by belt 25 between small pulley 24 and the big pulley 7 on the transmission shaft 3. When the knife grinder is working, the motor 23 drives the small pulley 24 to rotate, and the small pulley 24 transmits power to the large pulley 7 through the belt 25, and then transmits the power to the rotating shaft 3 through the large pulley 7, and finally makes the grinding wheel on the rotating shaft 3 4 spins.

A water tank 26 is arranged at the bottom of the bracket 1, and a water pump 27 is installed on the water tank 26. A downpipe 28 connected with the water tank 26 is installed on the grinding wheel fixing plate 2. The water pump 27, the water tank 26 and the downpipe 28 form a water circulation device, which can be cleaned continuously and cooling tools. When the water circulation device was set on the support 1, a waterproof ring 29 was installed between the motor shaft and the emery wheel fixed plate 2 to prevent water from dripping on the motor.

The working principle of the utility model is as follows: determine the correction amount according to the degree of wear of the grinding wheel, and then adjust the adjusting screw so that the diamond pen extends to the outer part of the screw hole to correspond to the correction amount, so as to determine the thickness that the grinding wheel surface needs to cut, that is, the diamond pen Contact with the lowest point on the surface of the grinding wheel, start the motor to rotate the grinding wheel, and then turn the hand wheel to drive the screw to rotate, the nut moves on the screw, and the sliding component is fixed on the track through the drive block fixed on the nut and the driving card on the sliding component Slide up to make the diamond pen cut the surface of the grinding wheel, so as to achieve the correction effect of making the surface of the grinding wheel smooth.

Of course, the utility model is not limited to the above-mentioned embodiment, the sliding assembly of the utility model can also adopt other structures, and the power transmission can also adopt gear transmission, etc., as long as it achieves the technical effect of the utility model by basically the same means , all should belong to the protection domain of the present utility model.

Claims (5)

1. a knife sharpener comprises support, it is characterized in that by power transmission shaft emery wheel being installed on the support, is connected with actuating unit on the power transmission shaft, and wheel truing device is installed on the support, and described wheel truing device is striden and is located at the emery wheel top.

2. a kind of knife sharpener according to claim 1, it is characterized in that described wheel truing device comprises a track, the two ends of track are rack-mount by left and right sides fixed mount, slide assemblies is installed on the track, by bearing screw mandrel is installed between the fixed mount of the described left and right sides, one end of screw mandrel is equipped with handwheel, nut has been threaded on the screw mandrel, be installed with drive block on the nut, the driver card that cooperates with drive block is installed on the slide assemblies, on the described slide assemblies adjusting screw(rod) is installed, an end of adjusting screw(rod) is equipped with diamond pen, and an end of described diamond pen may extend to outside the slide assemblies and with wheel face and contacts.

3. a kind of knife sharpener according to claim 2, it is characterized in that described slide assemblies comprises that slide rail, slide rail piece reach slide block up and down, described slide rail, slide rail piece reach up and down, and slide block is fixedly connected as an integral body and can slides along track, described slide rail is provided with screw, adjusting screw(rod) and diamond pen are installed in the screw of slide rail, and an end of diamond pen to may extend to this screw outer and contact with wheel face.

4. a kind of knife sharpener according to claim 1, it is characterized in that described actuating unit comprises a motor, on the motor shaft of described motor small belt pulley is installed, on the described power transmission shaft big belt pulley is installed, be connected by belt between small belt pulley and the big belt pulley.

5. according to claim 1 or 2 or 3 or 4 described a kind of knife sharpeners, it is characterized in that being equipped with on the slide assemblies way-cover.

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