CN108747621B - Multi-grinding-head knife sharpener - Google Patents
Multi-grinding-head knife sharpener Download PDFInfo
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- CN108747621B CN108747621B CN201810996421.2A CN201810996421A CN108747621B CN 108747621 B CN108747621 B CN 108747621B CN 201810996421 A CN201810996421 A CN 201810996421A CN 108747621 B CN108747621 B CN 108747621B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000008878 coupling Effects 0.000 claims description 42
- 238000010168 coupling process Methods 0.000 claims description 42
- 238000005859 coupling reaction Methods 0.000 claims description 42
- 239000011324 bead Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a multi-grinding-head knife sharpener. The knife sharpener comprises a machine shell, wherein the machine shell comprises a machine body and a machine head, and the machine head can rotate relative to the machine body; the machine body is internally provided with a circuit board, a motor and a transmission assembly, and the transmission assembly is connected with the motor; the machine head is internally provided with a first grinding head and a second grinding head, wherein the first grinding head comprises at least one first grinding wheel, and the second grinding head comprises at least one second grinding wheel; the machine head is provided with at least one first cutter groove and at least one second cutter groove; the first grinding head or the second grinding head can be connected with the transmission assembly through the rotating machine head, when the transmission assembly is connected with the first grinding head, the first grinding wheel can be driven to rotate, and when the transmission assembly is connected with the second grinding head, the motor can be driven to rotate. According to the invention, the rough grinding of the cutter can be rapidly finished through the first grinding head, and the cutter can be finely ground through the second grinding head, so that the surface quality of the cutter after grinding is greatly improved.
Description
Technical Field
The invention relates to the technical field of daily life appliances, in particular to a multi-grinding-head knife sharpener.
Background
After the cutter is used for a long time, the cutter is generally rounded off by sharpness, and in order to keep the normal use of the cutter, the cutter needs to be sharpened. A common household can self-prepare a knife stone to knife by a manual mode. However, the cutter is often worn due to the fact that the force and the direction of sharpening cannot be mastered, and the service life of the cutter is affected.
Some electric knife sharpeners also appear in the prior art, and the structure of a common electric knife sharpener is as follows: the motor and the grinding wheel are arranged in the machine body, the cutter groove is arranged on the upper cover of the machine shell, a power supply is turned on during sharpening, the grinding wheel is driven by the motor to rotate rapidly, and the cutter is inserted into the cutter groove at the upper part of the sharpener to realize automatic sharpening.
However, most of the electric knife sharpeners in the prior art only have one grinding head, which cannot realize coarse grinding and fine grinding, and are inconvenient to use.
Disclosure of Invention
It is an object of the present invention to provide a multiple-grated tool sharpener that solves one or more of the above-mentioned problems of the prior art.
According to one aspect of the present invention, there is provided a multiple-point sharpener comprising a housing, the housing comprising a body and a head connected to each other, the head being rotatable relative to the body;
the machine body is internally provided with a circuit board, a motor and a transmission assembly, the motor is electrically connected with the circuit board, the transmission assembly is connected with an output shaft of the motor, and the motor can drive the transmission assembly to rotate;
the machine head is internally provided with a first grinding head and a second grinding head, the first grinding head comprises at least one first grinding wheel for rough grinding of the cutter, and the second grinding head comprises at least one second grinding wheel for fine grinding of the cutter;
the machine head is provided with at least one first cutter groove and at least one second cutter groove, the first cutter groove is arranged corresponding to the first grinding wheel, and the second cutter groove is arranged corresponding to the second grinding wheel;
the first grinding head or the second grinding head can be connected with the transmission assembly through the rotating machine head, when the transmission assembly is connected with the first grinding head, the first grinding wheel can be driven to rotate, and when the transmission assembly is connected with the second grinding head, the motor can be driven to rotate.
The invention has the beneficial effects that: according to the invention, the first grinding head and the second grinding head which can respectively grind the cutter are arranged in the machine head, so that the cutter can be ground and ground on the same knife grinder, when the cutter is required to be ground in a rough mode, the first grinding head in the machine head is connected with the transmission component in the machine body through rotating the machine head, then the cutter is inserted into the first cutter groove, under the action of a motor, the transmission component can drive the first grinding wheel to rotate, and therefore the cutter can be ground in a rough mode, when the cutter is required to be ground in a fine mode, the second grinding head in the machine head is connected with the transmission component in the machine body through rotating the machine head, then the cutter is inserted into the second cutter groove, and under the action of the motor, the transmission component can drive the second grinding wheel to rotate, so that the cutter can be ground in a fine mode. The invention has simple structure and convenient use, can quickly finish the rough grinding of the cutter through the first grinding head, can finely grind the cutter through the second grinding head, and greatly improves the surface quality of the cutter after grinding.
In some embodiments, the transmission assembly includes a first gear, a second gear, a first rotating shaft and a first coupling, the first gear is connected with an output shaft of the motor, the second gear is meshed with the first gear, the second gear is connected with the first rotating shaft, one end of the first rotating shaft, which is close to the machine head, is connected with the first coupling, the first grinding wheel and the second grinding wheel are both connected with the second rotating shaft, one end of the second rotating shaft, which is close to the machine body, is connected with a second coupling matched with the first coupling, and the first rotating shaft can move left and right in the machine body. Thus, when the first shaft is moved rightward, the second gear and the first coupling are moved rightward together therewith, so that the first coupling and the second coupling are separated from each other, at which time the head can be rotated by applying an external force. When the first rotating shaft moves leftwards, the second gear and the first coupler move leftwards together, so that the first coupler can be connected with the second coupler, at the moment, if the motor is started, the rotating motor can drive the first gear to rotate, the first gear can drive the second gear meshed with the first gear to rotate, the rotating second gear can drive the first rotating shaft connected with the second gear to rotate, the first coupler is driven to rotate, the rotating first coupler can drive the second coupler connected with the first coupler to rotate, the second coupler can drive the second rotating shaft connected with the second coupler to rotate, and the second rotating shaft can drive the grinding wheel connected with the second rotating shaft to rotate.
In some embodiments, the first coupling is provided with a plurality of bayonets, and the second coupling is provided with a clamping block matched with the bayonets. Therefore, when the first coupler is connected with the second coupler, the clamping blocks on the second coupler can be clamped into the bayonets on the first coupler, so that the first coupler and the second coupler can be firmly connected, and when the first coupler and the second coupler are mutually separated, the clamping blocks on the second coupler can be separated from the bayonets of the first coupler, and the design can be more convenient for connection and separation between the first coupler and the second coupler.
In some embodiments, the machine body is provided with a pressing piece, the pressing piece can move up and down relative to the machine body, the bottom of the pressing piece is provided with a connecting piece, the bottom of the connecting piece is provided with a first inclined surface, one end of the first rotating shaft, which is far away from the machine head, is provided with an inclined slide block, a second inclined surface matched with the first inclined surface is arranged in the inclined slide block, and one end of the inclined slide block, which is far away from the second gear, is abutted against the spring. Therefore, when the pressing piece is pressed down, the connecting piece moves downwards along with the pressing piece, the inclined slide block moves rightwards under the action of the first inclined plane, the spring is compressed, the rightwards moved inclined slide block drives the first rotating shaft connected with the inclined slide block to move rightwards, and the first rotating shaft drives the second gear connected with the first rotating shaft to move rightwards along with the first coupling, so that the second coupling and the first coupling are separated from each other. When the hand leaves the pressing piece, the spring returns to the initial state, the inclined slide block moves leftwards under the action of the elasticity of the spring, the connecting piece moves upwards under the action of the second inclined plane so as to drive the pressing piece to move upwards and return to the initial position, the inclined slide block which moves leftwards can drive the first rotating shaft connected with the inclined slide block to move leftwards, and the first rotating shaft can drive the second gear connected with the first rotating shaft and the first coupling to move leftwards together, so that the first coupling can be connected with the second coupling.
In some embodiments, a snap ring is provided on the first shaft, the snap ring being connected to one end of the diagonal slider. Therefore, the clamping ring is arranged on the first rotating shaft, so that the connection between the first rotating shaft and the inclined sliding block can be facilitated, and meanwhile, the inclined sliding block can be facilitated to drive the first rotating shaft to move left and right in the machine body.
In some embodiments, a third grinding head for grinding scissors is further arranged in the machine head, the third grinding head comprises a third grinding wheel, a third cutter groove which is correspondingly arranged with the third grinding wheel is formed in the machine head, and the third grinding head can be connected with the transmission assembly through rotating the machine head. Therefore, the third grinding head is connected with the transmission assembly through the rotating machine head, then the scissors are placed in the third cutter groove, the motor is started, the motor can drive the transmission assembly to rotate so as to drive the third grinding wheel to rotate, and accordingly the scissors can be polished, and the application range of the invention is further improved.
In some embodiments, a supporting block is arranged in the machine head, a third inclined plane matched with the third knife slot is arranged on the top surface of the supporting block, an inserting slot is arranged in the machine head, and an inserting piece matched with the inserting slot is arranged on the supporting block. Therefore, the support block can be firmly fixed in the machine head by inserting the plug connector into the plug groove. In addition, through setting up the supporting shoe in the aircraft nose to set up on the supporting shoe with third sword groove matched with third inclined plane, the lay of scissors that can be convenient for more, thereby can polish the scissors through the third grinding wheel better.
In some embodiments, the bottom of the machine head is provided with a spring hole, a positioning spring is arranged in the spring hole, the bottom of the positioning spring is fixedly connected with a clamping bead, and the head of the machine body is provided with a plurality of clamping grooves matched with the clamping bead. Therefore, when the machine head rotates to a proper position, the grinding head to be used can be connected with the transmission assembly, the clamping beads can fall into the clamping grooves, and the clamping beads can be separated from the clamping grooves only by increasing the rotation force due to the fact that the positioning springs are telescopic, and the machine head normally rotates and the clamping beads are different from the force with which the clamping beads are screwed out from the clamping grooves, so that the machine head can be perceived by a user in the rotating process, and the machine head can be conveniently rotated to the correct position by the user in the rotating process, so that the grinding head to be used can be smoothly connected with the transmission assembly.
In some embodiments, the head of the machine body is provided with a first connecting column, the machine head is provided with a second connecting column matched with the first connecting column, the second connecting column can be sleeved on the first connecting column, and the second connecting column can rotate relative to the first connecting column. Therefore, the design can further simplify the whole structure of the invention, and is more convenient for the connection between the machine body and the machine head.
In some embodiments, the casing further comprises a cover, the cover is arranged on the machine head, a third connecting column is arranged in the cover, an annular boss is arranged in the third connecting column, the annular boss separates the third connecting column into a first column body and a second column body, the first column body is close to the position where the machine head is located, the first column body can be sleeved on the second connecting column body, the top of the first connecting column body can extend into the second column body, the top of the first connecting column body is in threaded connection with a connecting cap, and the connecting cap is located in the second column body. Therefore, the machine head is covered with the machine cover, so that dust in air can be effectively prevented from entering the machine head and is deposited on the grinding wheel to influence the normal use of the grinding wheel. Simultaneously through locate the first cylinder cover on the second spliced pole can be more convenient for be connected between lid and the aircraft nose, in addition, through set up the connecting cap in the second post to link to each other through the screw thread with the top of connecting cap and first spliced pole, thereby can further improve the steadiness of being connected between fuselage, aircraft nose, the lid three.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a multi-grinding-head knife sharpener according to an embodiment of the present invention;
FIG. 2 is an exploded view of the multiple-point sharpener of FIG. 1;
FIG. 3 is a cross-sectional view of the multiple-point sharpener of FIG. 1;
FIG. 4 is a schematic view of the structure of the body of the multi-point sharpener of FIG. 1;
FIG. 5 is a schematic diagram of the connection relationship between the first, second and third graters and the handpiece in the multi-grater sharpener of FIG. 1;
FIG. 6 is a schematic diagram of the structure of a handpiece in the multiple-burr sharpener of FIG. 1;
FIG. 7 is a schematic view of the structure of a cover in the multiple-burr sharpener of FIG. 1;
FIG. 8 is a schematic view of the structure of the support block in the multiple-grated tool sharpener of FIG. 1;
FIG. 9 is a schematic view of the structure of the pressing member in the multiple-point sharpener of FIG. 1;
FIG. 10 is a schematic view of the structure of a bevel slide in the multiple-point sharpener of FIG. 1;
fig. 11 is a schematic view of a partial structure of the multi-tipped knife sharpener of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 to 11 schematically show a multi-grated knife sharpener according to an embodiment of the present invention. As shown, the multiple-grated sharpener includes a housing.
The machine shell comprises a machine body 1 and a machine head 2 which are connected, and the machine head 2 can rotate relative to the machine body 1. In order to facilitate the connection between the machine body 1 and the machine head 2, the integral structure of the invention is simplified, the head of the machine body 1 can be provided with a first connecting column 102, the machine head 2 is provided with a second connecting column 206 matched with the first connecting column 102, the second connecting column 206 can be sleeved on the first connecting column 102, and the second connecting column 206 can rotate relative to the first connecting column 102. Thus, the design can further simplify the whole structure of the invention, and is more convenient for the connection between the machine body 1 and the machine head 2.
The machine body 1 is internally provided with a circuit board 3, a motor 4 and a transmission assembly, the motor 4 is electrically connected with the circuit board 3, the transmission assembly is connected with an output shaft of the motor 4, and the motor 4 can drive the transmission assembly to rotate. In order to be convenient for carry out the power supply to motor 4, still can be equipped with battery 20 that can charge in the fuselage 1, battery 20 and circuit board 3 electricity are connected, can be equipped with power socket 103 and start-stop switch 104 on the fuselage 1, and power socket 103 and start-stop switch 104 all are connected with circuit board 3 electricity, can external power supply through power socket 103 from this, and then can charge battery 20, through pressing start-stop switch 104, can control the on-state of circuit.
In order to facilitate the placement of the circuit board 3, the motor 4 and the transmission assembly, a plurality of mounting positions 105 are arranged in the machine body 1, and the circuit board 3, the motor 4 and the transmission assembly are respectively mounted on the corresponding mounting positions 105.
In order to facilitate the placement of the present invention and also to reduce vibrations and noise generated during operation of the present invention, the bottom of the body 1 may be provided with a support plate 106 protruding downward.
A first grinding head and a second grinding head are arranged in the machine head 2, the first grinding head comprises at least one first grinding wheel 6 for rough grinding of a cutter, and the second grinding head comprises at least one second grinding wheel 7 for fine grinding of the cutter; the machine head 2 is provided with at least one first cutter groove 201 and at least one second cutter groove 202, the first cutter groove 201 is arranged corresponding to the first grinding wheel 6, and the second cutter groove 202 is arranged corresponding to the second grinding wheel 7; the first grinding head or the second grinding head can be connected with the transmission component through the rotating machine head 2, when the transmission component is connected with the first grinding head, the motor 4 can drive the first grinding wheel 6 to rotate, and when the transmission component is connected with the second grinding head, the motor 4 can drive the second grinding wheel 7 to rotate.
According to the invention, the first grinding head and the second grinding head which can respectively grind the cutter are arranged in the machine head 2, so that the cutter can be ground and finely ground on the same knife grinder, when the cutter is required to be ground in a rough mode, the first grinding head in the machine head 2 is connected with the transmission component in the machine body 1 through rotating the machine head 2, then the cutter is inserted into the first cutter groove 201, under the action of the motor 4, the transmission component can drive the first grinding wheel 6 to rotate, and therefore the cutter can be ground in a rough mode, when the cutter is required to be ground in a fine mode, the second grinding head in the machine head 2 is connected with the transmission component in the machine body 1 through rotating the machine head 2, then the cutter is inserted into the second cutter groove 202, and under the action of the motor 4, the transmission component can drive the second grinding wheel 7 to rotate, so that the cutter can be ground in a fine mode. The invention has simple structure and convenient use, can quickly finish the rough grinding of the cutter through the first grinding head, and can finely grind the cutter through the second grinding head, thereby greatly improving the surface quality of the cutter after grinding.
The casing may further include a cover 18, where the cover 18 is covered on the machine head 2, a third connecting column 181 is provided in the cover 18, an annular boss 182 is provided in the third connecting column 181, the annular boss 182 separates the third connecting column 181 into a first column 1811 and a second column 1812, the first column 1811 is close to the position of the machine head 2, the first column 1811 can be sleeved on the second connecting column 206, the top of the first connecting column 102 can extend into the second column 1812, the top of the first connecting column 102 is in threaded connection with a connecting cap 19, and the connecting cap 19 is located in the second column 1812. Therefore, the cover 18 is covered on the machine head 2, so that dust in air can be effectively prevented from entering the machine head 2 and depositing on the grinding wheel to influence the normal use of the grinding wheel. Meanwhile, the first column body 1811 is sleeved on the second connection column 206, so that connection between the machine cover 18 and the machine head 2 can be facilitated, in addition, the connection cap 19 is arranged in the second column body 1812, and the connection cap 19 is connected with the top of the first connection column 102 through threads, so that connection stability among the machine body 1, the machine head 2 and the machine cover 18 can be further improved.
In order to further improve the connection stability between the handpiece 2 and the cover 18, the head of the handpiece 2 may be provided with a step 207, and the cover 18 may be covered on the step 207.
In order to further expand the application range of the invention, a third grinding head for grinding scissors is further arranged in the machine head 2, the third grinding head comprises a third grinding wheel 14, a third cutter groove 203 which is arranged corresponding to the third grinding wheel 14 is arranged on the machine head 2, and the third grinding head can be connected with a transmission assembly by rotating the machine head 2. Therefore, the third grinding head can be connected with the transmission assembly by rotating the machine head 2, then the scissors are placed in the third cutter groove 203, the motor 4 is started, and the motor 4 can drive the transmission assembly to rotate so as to drive the third grinding wheel 14 to rotate, so that the scissors can be polished, and the application range of the invention is further improved.
The machine head 2 can be internally provided with a supporting block 15, the top surface of the supporting block 15 is provided with a third inclined surface 151 matched with the third cutter groove 203, the machine head 2 is internally provided with an inserting groove 204, and the supporting block 15 is provided with an inserting piece 152 matched with the inserting groove 204. Thus, by inserting the plug 152 into the plug groove 204, the support block 15 can be firmly fixed in the handpiece 2. In addition, by arranging the supporting block 15 in the machine head 2 and arranging the third inclined surface 151 matched with the third cutter groove 203 on the supporting block 15, the scissors can be more conveniently placed, and the scissors can be polished better through the third grinding wheel 14.
Preferably, a spring hole 205 is formed in the bottom of the machine head 2, a positioning spring 16 is arranged in the spring hole 205, a clamping bead 17 is fixedly connected to the bottom of the positioning spring 16, and a plurality of clamping grooves 101 matched with the clamping bead 17 are formed in the head of the machine body 1. Therefore, when the machine head 2 rotates to a proper position, the grinding head to be used can be connected with the transmission assembly, the clamping beads 17 can fall into the clamping groove 101, and as the positioning spring 16 is telescopic, the clamping beads 17 can be separated from the clamping groove 101 only by increasing the rotation force, and the normal rotation of the machine head 2 is different from the rotation force of the clamping beads 17 from the clamping groove 101, so that the machine head can be perceived by a user in the rotation process, and the machine head 2 can be conveniently rotated to the correct position by the user in the rotation process, so that the grinding head to be used can be smoothly connected with the transmission assembly.
The transmission assembly may include a first gear 51, a second gear 52, a first shaft 53 and a first coupling 54, the first gear 51 is connected to the output shaft of the motor 4, the second gear 52 is meshed with the first gear 51, the second gear 52 is connected to the first shaft 53, one end of the first shaft 53 near the machine head 2 is connected to the first coupling 54, a plurality of bayonets 541 may be provided on the first coupling 54, the first shaft 53 may move left and right in the machine body 1, and a tooth surface width of the first gear 51 is greater than a tooth surface width of the second gear 52, so that the second gear 52 may move left and right along a tooth surface of the first gear 51.
The first grinding wheel 6, the second grinding wheel 7 and the third grinding wheel 14 can be connected with a second rotating shaft 8, one end, close to the machine body 1, of the second rotating shaft 8 is connected with a second coupling 9 matched with the first coupling 54, a plurality of mounting holes 208 for mounting the second rotating shaft 8 and the second coupling 9 are formed in the machine head 2, the mounting holes 208 comprise a first hole body 2081 and a second hole body 2082 which are connected, the first hole body 2081 is matched with the second coupling 9, the second hole body 2082 is matched with the second rotating shaft 8, a plurality of fourth connecting columns 183 matched with the second rotating shaft 8 can be formed in the machine cover 18, and one end, close to the position of the machine cover 18, of the second rotating shaft 8 can be inserted into the fourth connecting columns 183.
The second coupling 9 may be provided with a latch 91 cooperating with the bayonet 541. Therefore, when the first shaft 53 moves rightwards, the second gear 52 and the first coupling 54 move rightwards together, so that the first coupling 54 and the second coupling 9 are separated from each other, the machine head 2 can be rotated by applying an external force, when the first shaft 53 moves leftwards, the second gear 52 and the first coupling 54 move leftwards together, so that the first coupling 54 can be connected with the second coupling 9, when the motor 4 is started, the rotating motor 4 drives the first gear 51 to rotate, the first gear 51 drives the second gear 52 meshed with the first gear 51 to rotate, the rotating second gear 52 drives the first coupling 53 connected with the first gear to rotate, the rotating first coupling 54 drives the second coupling 9 connected with the first gear to rotate, the second coupling 9 drives the second rotating shaft 8 connected with the second coupling 9 to rotate, and the second rotating shaft 8 drives the grinding wheel connected with the second rotating shaft to rotate.
For convenient operation, the machine body 1 may be provided with a pressing piece 10, the pressing piece 10 can move up and down relative to the machine body 1, the bottom of the pressing piece 10 is provided with a connecting piece 11, the bottom of the connecting piece 11 is provided with a first inclined plane 111, one end of the first rotating shaft 53 away from the machine head 2 is provided with a diagonal slide block 12, the diagonal slide block 12 is sleeved on the first rotating shaft 53, the diagonal slide block 12 is provided with a second inclined plane 121 matched with the first inclined plane 111, and one end of the diagonal slide block 12 away from the second gear 52 is abutted against the spring 13. Thus, when the pressing member 10 is pressed, the connecting member 11 moves downward together with the pressing member 10, the diagonal slider 12 moves rightward under the action of the first inclined surface 111, the spring 13 is compressed, the diagonal slider 12 moving rightward together with the first rotating shaft 53 connected thereto is driven by the diagonal slider 12 moving rightward together with the second gear 52 and the first coupling 54 connected thereto is driven by the first rotating shaft 53, and the second coupling 9 and the first coupling 54 are separated from each other. When the hand leaves the pressing piece 10, the spring 13 returns to the initial state, the inclined slide block 12 moves leftwards under the action of the elasticity of the spring 13, the connecting piece 11 moves upwards under the action of the second inclined surface 121 so as to drive the pressing piece 10 to move upwards and return to the initial position, the left-moving inclined slide block 12 drives the first rotating shaft 53 connected with the inclined slide block to move leftwards, and the first rotating shaft 53 drives the second gear 52 connected with the first rotating shaft 53 and the first coupling 54 to move leftwards, so that the first coupling 54 can be connected with the second coupling 9.
In order to facilitate the diagonal slide block 12 to drive the first rotating shaft 53 to move left and right in the machine body 1 together, a clamping ring 531 is arranged on the first rotating shaft 53, the clamping ring 531 is positioned in the diagonal slide block 12, and the clamping ring 531 is connected with one end of the diagonal slide block 12. Thus, by providing the snap ring 531 on the first rotation shaft 53, the connection between the first rotation shaft 53 and the diagonal slider 12 can be more facilitated.
In order to facilitate the installation of the spring 13, the body 1 may be provided with a first limiting plate 107 capable of being abutted against one end of the spring 13, one end of the diagonal slider 12, which is close to the position where the spring 13 is located, is provided with an opening 122, a pair of second limiting plates 123 which are oppositely arranged are arranged below the second diagonal slider 121, and the second limiting plates 123 can be abutted against the other end of the spring 13.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (7)
1. The multi-grinding-head knife sharpener is characterized by comprising a machine shell, wherein the machine shell comprises a machine body (1) and a machine head (2) which are connected, and the machine head (2) can rotate relative to the machine body (1);
a circuit board (3), a motor (4) and a transmission assembly are arranged in the machine body (1), the motor (4) is electrically connected with the circuit board (3), the transmission assembly is connected with an output shaft of the motor (4), and the motor (4) can drive the transmission assembly to rotate;
a first grinding head and a second grinding head are arranged in the machine head (2), the first grinding head comprises at least one first grinding wheel (6) for carrying out rough grinding on a cutter, and the second grinding head comprises at least one second grinding wheel (7) for carrying out fine grinding on the cutter;
at least one first cutter groove (201) and at least one second cutter groove (202) are formed in the machine head (2), the first cutter groove (201) is arranged corresponding to the first grinding wheel (6), and the second cutter groove (202) is arranged corresponding to the second grinding wheel (7);
the first grinding head or the second grinding head can be connected with the transmission assembly by rotating the machine head (2), when the transmission assembly is connected with the first grinding head, the motor (4) can drive the first grinding wheel (6) to rotate, and when the transmission assembly is connected with the second grinding head, the motor (4) can drive the second grinding wheel (7) to rotate; the transmission assembly comprises a first gear (51), a second gear (52), a first rotating shaft (53) and a first coupler (54), wherein the first gear (51) is connected with an output shaft of the motor (4), the second gear (52) is meshed with the first gear (51), the second gear (52) is connected with the first rotating shaft (53), one end, close to the machine head (2), of the first rotating shaft (53) is connected with the first coupler (54), the first grinding wheel (6) and the second grinding wheel (7) are connected with a second rotating shaft (8), one end, close to the machine body (1), of the second rotating shaft (8) is connected with a second coupler (9) matched with the first coupler (54), and the first rotating shaft (53) can move left and right in the machine body (1);
a third grinding head for grinding scissors is further arranged in the machine head (2), the third grinding head comprises a third grinding wheel (14), a third cutter groove (203) which is arranged corresponding to the third grinding wheel (14) is formed in the machine head (2), and the third grinding head can be connected with the transmission assembly by rotating the machine head (2);
the novel cutting machine is characterized in that a supporting block (15) is arranged in the machine head (2), a third inclined surface (151) matched with the third cutter groove (203) is arranged on the top surface of the supporting block (15), a plug groove (204) is arranged in the machine head (2), and a plug connector (152) matched with the plug groove (204) is arranged on the supporting block (15).
2. The multi-grinding-head knife sharpener according to claim 1, wherein the first coupling (54) is provided with a plurality of bayonets (541), and the second coupling (9) is provided with clamping blocks (91) matched with the bayonets (541).
3. The multi-grinding-head knife sharpener according to claim 2, characterized in that the machine body (1) is provided with a pressing piece (10), the pressing piece (10) can move up and down relative to the machine body (1), the bottom of the pressing piece (10) is provided with a connecting piece (11), the bottom of the connecting piece (11) is provided with a first inclined surface (111), one end of the first rotating shaft (53) away from the machine head (2) is provided with a bevel slide block (12), a second inclined surface (121) matched with the first inclined surface (111) is arranged in the bevel slide block (12), and one end of the bevel slide block (12) away from the second gear (52) is abutted against the spring (13).
4. A multiple grinding head knife sharpener according to claim 3, characterized in that the first rotating shaft (53) is provided with a snap ring (531), and the snap ring (531) is connected with one end of the oblique slider (12).
5. The multi-grinding-head knife sharpener according to claim 1, wherein a spring hole (205) is formed in the bottom of the machine head (2), a positioning spring (16) is arranged in the spring hole (205), clamping beads (17) are fixedly connected to the bottom of the positioning spring (16), and a plurality of clamping grooves (101) matched with the clamping beads (17) are formed in the head of the machine body (1).
6. The multi-grinding-head knife sharpener according to claim 1, characterized in that the head of the machine body (1) is provided with a first connecting column (102), the machine head (2) is provided with a second connecting column (206) matched with the first connecting column (102), the second connecting column (206) can be sleeved on the first connecting column (102), and the second connecting column (206) can rotate relative to the first connecting column (102).
7. The multi-grinding-head knife sharpener according to claim 6, wherein the housing further comprises a cover (18), the cover (18) is arranged on the machine head (2), a third connecting column (181) is arranged in the cover (18), an annular boss (182) is arranged in the third connecting column (181), the annular boss (182) divides the third connecting column (181) into a first column (1811) and a second column (1812), the first column (1811) is close to the position of the machine head (2), the first column (1811) can be sleeved on the second connecting column (206), the top of the first connecting column (102) can extend into the second column (1812), the top of the first connecting column (102) is connected with a connecting cap (19) in a threaded mode, and the connecting cap (19) is located in the second column (1812).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810996421.2A CN108747621B (en) | 2018-08-29 | 2018-08-29 | Multi-grinding-head knife sharpener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996421.2A CN108747621B (en) | 2018-08-29 | 2018-08-29 | Multi-grinding-head knife sharpener |
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| Publication Number | Publication Date |
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| CN108747621A CN108747621A (en) | 2018-11-06 |
| CN108747621B true CN108747621B (en) | 2024-03-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376360Y (en) * | 1999-07-09 | 2000-05-03 | 李晓峰 | Multi-function cutter sharpener |
| WO2006101284A1 (en) * | 2005-03-23 | 2006-09-28 | Young Hung Song | Knife sharpener |
| CN104185536A (en) * | 2011-12-22 | 2014-12-03 | 埃奇克拉夫特公司 | Precision sharpener for ceramic knife blades |
| CN206614348U (en) * | 2017-03-29 | 2017-11-07 | 江西唯诺机械有限公司 | Knife sharpener |
| CN108274312A (en) * | 2018-01-28 | 2018-07-13 | 陈烁 | Embedded groove type knife sharpener |
| CN208575617U (en) * | 2018-08-29 | 2019-03-05 | 广东企盟工业设计有限公司 | A kind of more bistrique knife sharpeners |
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2018
- 2018-08-29 CN CN201810996421.2A patent/CN108747621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376360Y (en) * | 1999-07-09 | 2000-05-03 | 李晓峰 | Multi-function cutter sharpener |
| WO2006101284A1 (en) * | 2005-03-23 | 2006-09-28 | Young Hung Song | Knife sharpener |
| CN104185536A (en) * | 2011-12-22 | 2014-12-03 | 埃奇克拉夫特公司 | Precision sharpener for ceramic knife blades |
| CN206614348U (en) * | 2017-03-29 | 2017-11-07 | 江西唯诺机械有限公司 | Knife sharpener |
| CN108274312A (en) * | 2018-01-28 | 2018-07-13 | 陈烁 | Embedded groove type knife sharpener |
| CN208575617U (en) * | 2018-08-29 | 2019-03-05 | 广东企盟工业设计有限公司 | A kind of more bistrique knife sharpeners |
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| Publication number | Publication date |
|---|---|
| CN108747621A (en) | 2018-11-06 |
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