Knife sharpening mechanism capable of adjusting knife sharpening angle and electric knife sharpener

Abstract

The utility model relates to the technical field of knife sharpeners, and particularly discloses a knife sharpening mechanism with an adjustable knife sharpening angle and an electric knife sharpener, the knife sharpening mechanism comprises an angle adjuster, a support, a driving wheel, driven wheel sets and an abrasive belt, the driving wheel is arranged at the bottom in the support, and the driven wheel sets are symmetrically arranged at the upper end in the support; the driven wheel set is arranged at the position obliquely above one side of the driving wheel at the lower end of the support, the driving wheel and the driven wheel set are sleeved with the abrasive belt, the abrasive belt is driven by the driving wheel to rotate, the cutter is ground, the angle adjuster is arranged at the front end of the support, the grinding angle of the cutter is adjusted, and the grinding requirements of different cutters are met; a tensioning mechanism is arranged, a spring is arranged on a guide rod in a sleeving mode and located between a wheel frame and a fixing plate, in this way, the force of the spring acts on the wheel frame, a tensioning wheel is made to be tightly attached to the abrasive belt, and the abrasive belt has certain tension.

Description

TECHNICAL FIELD

[0001] The utility model relates to a knife sharpener technical field, specifically point to a kind of adjustable knife sharpening angle's knife sharpening mechanism and electric knife sharpener. BACKGROUND

[0002] People's life cannot leave cutlery, especially household kitchen knife, fruit knife and other plate-shaped cutlery. When the cutlery is blunt, it needs to be sharpened. Most of the traditional sharpening methods are to manually sharpen the cutlery with a block-shaped brick or a waste grinding wheel, which is laborious and time-consuming, and also pollutes the kitchen and affects hygiene. Some people directly sharpen the cutlery on an ordinary grinding machine or a simple knife sharpener by hand, and sparks are flying everywhere when sharpening the cutlery, and the cutlery may hurt the hand by accident, which is a safety hazard.

[0003] The prior art improvement scheme discloses a kind of electric multifunctional fixed-angle knife sharpener in patent No. CN202122004387.6, including grinding abrasive belt, the abrasive belt driven by the action of electric motor and pulley transmission mechanism, and machine shell. Among them, the pulley transmission mechanism includes driving U-shaped wheel rotated by the electric motor, and driven U-shaped wheel;The driven U-shaped wheel is arranged on a rotatable U-shaped groove frame by a first pin shaft;The U-shaped groove frame is adjacent to the one end of the driving U-shaped wheel and is provided with a hinge shaft to realize rotation, and the other end is provided with a button latch that can be unlocked or locked and is provided with a pin hole;It has the characteristics of compact structure, convenient abrasive belt replacement, grinding cutter template operation, convenient family use and safety;But the above scheme also has shortcomings: the angle of the cutlery cannot be adjusted according to the type of the cutlery and the polishing condition, so that the sharpening is not sharp, and the effect is poor;

[0004] Therefore, in view of the above-described technical problems, an adjustable knife sharpening angle's knife sharpening mechanism and electric knife sharpener are needed. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology, and to provide an adjustable knife sharpening angle's knife sharpening mechanism and electric knife sharpener.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is an adjustable knife sharpening angle's knife sharpening mechanism, which comprises:

[0007] Angle regulator, bracket, driving wheel, driven wheel set and abrasive belt, the driving wheel is arranged in the inner bottom of the bracket, the driven wheel set is symmetrically arranged at the upper end of the bracket, the driven wheel set is arranged at the obliquely upper position of the one side of the lower end of the bracket, the abrasive belt is sleeved on the driving wheel and the driven wheel set, and the abrasive belt is driven to rotate by the driving wheel, so as to realize the grinding of the cutlery, the bracket is provided with an angle regulator at the front end, so as to adjust the grinding angle of the cutlery, to adapt to the grinding requirements of different cutlery.

[0008] As an improvement, the bracket comprises a front bracket and a rear bracket arranged at the rear side of the front bracket, the driving wheel, the driven wheel set and the abrasive belt are located between the front bracket and the rear bracket, and the wheel shafts of the driven wheel set are connected with the front bracket and the rear bracket respectively at both ends, a servo motor is arranged at the front end below the front bracket, the rotating shaft of the servo motor penetrates through the front bracket and extends between the front bracket and the rear bracket, and the driving wheel is arranged on the rotating shaft of the servo motor.

[0009] As an improvement, a tensioning mechanism cooperating with the abrasive belt is arranged between the front bracket and the rear bracket, and the tensioning mechanism is arranged obliquely above the driving wheel on one side and opposite to the driven wheel set at the lower end of the front bracket.

[0010] The tensioning mechanism comprises a fixed plate, a wheel frame, a guide rod and a spring, one end of the fixed plate is arranged on the rear bracket, a sliding groove is arranged on the inner wall of the front bracket and the inner wall of the rear bracket, a mounting groove is arranged on the top of the sliding groove on the front bracket, the other end of the fixed plate is arranged in the mounting groove, a sliding hole is arranged in the middle of the fixed plate, the guide rod is slidingly arranged in the sliding hole, a wheel frame is arranged at the lower end of the guide rod, a tensioning wheel is arranged in the wheel frame, the tensioning wheel and the abrasive belt are rollingly matched to keep the abrasive belt in a tensioned state, the wheel frame is located in the sliding groove at both sides, the spring is sleeved on the guide rod and located between the wheel frame and the fixed plate, a pull rod is rotatably arranged at the upper end of the guide rod, an adjusting groove is arranged above the fixed plate on the rear bracket, one end of the pull rod extends out of the adjusting groove, and a limiting groove is arranged at the upper end of the adjusting groove.

[0011] As an improvement, the angle adjuster comprises a knob, a fixed shaft, a cam, a shaft sleeve, a shaft rod, a connecting arm and a tension spring, the fixed shaft is arranged at the front end of the front bracket, the knob is rotatably arranged on the fixed shaft, two cams are arranged on the knob, a plurality of clamping grooves are arranged on the circumference of the cam, the shaft rod is symmetrically arranged at the front end of the front bracket, the shaft sleeve is rotatably arranged on the shaft rod, the connecting arm is arranged on the shaft sleeve, the two connecting arms are arranged in a staggered manner, each connecting arm cooperates with a corresponding cam, an arc-shaped protrusion is arranged at one end of the connecting arm, the arc-shaped protrusion cooperates with the clamping groove to position the connecting arm, the other end of the connecting arm extends to the two sides of the front bracket respectively, a pressing plate is arranged at the end of the connecting arm extending to the side of the front bracket, a V-shaped placing cavity is formed between the pressing plate and the abrasive belt, a hanging ring is arranged at the end of the connecting arm provided with the arc-shaped protrusion, and the two ends of the tension spring are connected with the two hanging rings respectively, so that the arc-shaped protrusion tightly abuts against the outer edge of the cam to achieve angle adjustment by rotating the knob.

[0012] As an improvement, a cavity is arranged at the position where the pressing plate and the connecting arm are connected, the cavity extends out of the pressing plate and the connecting arm at the upper end, the cavity extends out of the pressing plate at one end, a roller is rotatably arranged in the cavity, the roller protrudes out of the cavity at the upper end, an end cover is arranged at the end of the cavity extending out of the pressing plate, and the roller and the end cover are rotatably connected.

[0013] The electric knife sharpener is characterized in that the adjustable knife sharpening angle mechanism is adopted.

[0014] The adjustable knife sharpening angle mechanism is arranged at the rear end of the casing, the casing is symmetrically provided with the insertion slots at the upper end of the casing, the insertion slots are arranged at the two sides of the front support, the grinding mechanism is arranged in the insertion slots, and the control mechanism is arranged at the front end of the casing.

[0015] As an improvement, the control mechanism comprises a controller and a power adapter, the power adapter is arranged at the front end of the casing, the casing is provided with the jack matched with the power adapter at the front end of the casing, and the controller is arranged at the upper end of the casing.

[0016] As an improvement, the upper casing is arranged at the upper end of the middle part of the casing, the upper end and the two sides of the upper casing are provided with the notches, the upper casing covers the outer side of the knob, the rear end of the upper casing is connected with the front support, the upper part of the knob extends out of the notch at the upper end of the upper casing, and one end of the connecting arm extends out of the notch at the side of the upper casing.

[0017] As an improvement, the casing is rotatably provided with the door at the rear end of the casing, the door is arranged at the rear side of the rear support, the door protects the adjustable knife sharpening angle mechanism, the upper end of the door is provided with the upper insertion slot, the upper cover is arranged above the front support and the rear support, the rear end of the upper cover is connected and matched with the upper insertion slot, the front end of the upper cover is arranged on the upper casing, the door is symmetrically provided with the V-shaped groove, the V-shaped groove is matched with the V-shaped placing cavity, and the V-shaped groove is used for placing the knife.

[0018] As an improvement, the grinding mechanism comprises a grinding frame and a plate body, the grinding frame is arranged in the insertion slot, the upper end of the grinding frame is provided with the extension plate on one side, the extension plate extends towards the sand belt direction and protects the pressing plate, the grinding frame is provided with the recess on one side, the plate body is rotatably arranged in the recess, and the plate body is provided with the sand plate on one side.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. The sand belt is sleeved on the driving wheel and the driven wheel set, the driven wheel set forms a certain inclination angle of the sand belt, the front end of the support is provided with the angle adjuster, the grinding angle of the knife is adjusted, the grinding requirement of different knives is adapted,

[0021] The connecting arm extends to the two sides of the front support, one end of the connecting arm extending to the side of the front support is provided with the pressing plate, the pressing plate on the connecting arm forms a certain included angle with the sand belt, the included angle between the pressing plate and the sand belt can be adjusted through the adjusting knob, different included angles are formed to adapt to the knives with different blade angle, the effect of improving the sharpness of the knife is achieved, and the sand belts on the left and right sides of the front support can grind the knives, and the knives are more convenient to use.

[0022] 2、 the two cams are provided on the knob, a plurality of clamping grooves are provided on the wheel circumference of the cam, an arc-shaped protrusion is provided on one end of the connecting arm, the arc-shaped protrusion is matched with the clamping groove, the two ends of the tension spring are connected with the two hanging rings on the connecting arm respectively, and the arc-shaped protrusion is tightly attached to the outer edge of the cam to achieve angle adjustment by rotating the knob;

[0023] 3、 the tensioning mechanism is provided, the spring is sleeved on the guide rod and located between the wheel frame and the fixed plate, so that the spring acts on the wheel frame, the tensioning wheel is tightly attached to the abrasive belt, and the abrasive belt has a certain tension;

[0024] the inner wall of the front support and the inner wall of the rear support are provided with sliding grooves, the wheel frame is located in the sliding grooves, the upper end of the guide rod is rotationally provided with a pull rod, the upper side of the fixed plate on the rear support is provided with an adjusting groove, one end of the pull rod extends out of the adjusting groove, and the upper end of the adjusting groove is provided with a limiting groove, so that when the pull rod is pulled, the tensioning wheel can be moved along the sliding groove, and then the pull rod is fixed in the limiting groove, so that the tensioning wheel is away from the abrasive belt, the abrasive belt is not taut, and the abrasive belt is convenient to replace;

[0025] 4、 the two sides of the shell are provided with sand plates that can be adjusted by turning over, the sand plates can be turned over and opened to grind different tools, and the sand plates can also be rotated and stored in the recesses, and use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a side view of the knife sharpening mechanism and the electric knife sharpener.

[0027] Figure 2 is a rear view of the knife sharpening mechanism and the electric knife sharpener.

[0028] Figure 3 is a top view of the knife sharpening mechanism and the electric knife sharpener.

[0029] Figure 4 is a perspective structural schematic view of the knife sharpening mechanism and the electric knife sharpener.

[0030] Figure 5 is a disassembled state of the knife sharpening mechanism and the electric knife sharpener Figure 1 .

[0031] Figure 6 is a disassembled state of the knife sharpening mechanism and the electric knife sharpener Figure 2

[0032] Figure 7 is a disassembled state of the knife sharpening mechanism and the electric knife sharpener Figure 3 .

[0033] Figure 8 is the disassembled state of the knife angle adjustable knife grinding mechanism and the electric knife sharpener Figure 4 .

[0034] Figure 9 is the use state reference drawing of the sand plate of the knife angle adjustable knife grinding mechanism and the electric knife sharpener.

[0035] Figure 10 is the mechanism schematic view of the knife angle adjustable knife grinding mechanism of the knife angle adjustable knife grinding mechanism and the electric knife sharpener.

[0036] Figure 11 is Figure 2 the sectional view at A-A in the figure.

[0037] Figure 12 is Figure 1 the sectional view at B-B in the figure.

[0038] Figure 13 is Figure 12 the local enlarged view of C in the figure.

[0039] Figure 14 is Figure 11 the local enlarged view of D in the figure.

[0040] As shown in the figure:

[0041] 100, driving wheel;

[0042] 200, driven wheel group;

[0043] 300, sand belt;

[0044] 401, front support, 402, rear support, 403, servo motor;

[0045] 501, fixed plate, 502, wheel frame, 503, guide rod, 504, spring, 505, sliding groove, 506, mounting groove, 507, sliding hole, 508, tensioning wheel, 509, pull rod, 510, adjusting groove, 511, limiting groove;

[0046] 601, knob, 602, fixed shaft, 603, cam, 604, shaft sleeve, 605, shaft rod, 606, connecting arm, 607, tension spring, 608, clamping groove, 609, arc-shaped protrusion, 610, pressing plate, 611, V-shaped placement cavity, 612, hanging ring, 613, cavity, 614, roller, 615, end cover;

[0047] 701, cabinet, 702, plug-in slot, 703, upper housing, 704, slot, 705, door, 706, upper slot, 707, upper cover, 708, V-shaped groove;

[0048] 801, controller, 802, power adapter, 803, jack;

[0049] 901, grinding frame, 902, plate body, 903, extension plate, 904, groove, 905, sanding plate. DETAILED DESCRIPTION

[0050] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0051] In conjunction with the drawings Figures 1-14 A grinding mechanism capable of adjusting the angle of a grinding tool, comprising:

[0052] An angle adjuster, a support, a driving wheel 100, a driven wheel set 200 and a sand belt 300, the inner bottom of the support is provided with the driving wheel 100, the inner upper end of the support is symmetrically provided with the driven wheel set 200, the obliquely upper position of one side of the driving wheel 100 at the lower end of the support is provided with the driven wheel set 200, the sand belt 300 is sleeved on the driving wheel 100 and the driven wheel set 200 and is driven to rotate by the driving wheel 100, so as to realize the grinding of the tool, and the front end of the support is provided with the angle adjuster, so as to adjust the grinding angle of the tool to adapt to the grinding requirements of different tools.

[0053] The support comprises a front support 401 and a rear support 402 arranged at the rear side of the front support 401, the driving wheel 100, the driven wheel set 200 and the sand belt 300 are located between the front support 401 and the rear support 402, and the wheel shafts of the driven wheel set 200 are connected with the front support 401 and the rear support 402 respectively, the front end below the front support 401 is provided with a servo motor 403, the rotating shaft of the servo motor 403 penetrates through the front support 401 and extends between the front support 401 and the rear support 402, and the driving wheel 100 is arranged on the rotating shaft of the servo motor 403.

[0054] A tensioning mechanism cooperating with the sand belt 300 is arranged between the front support 401 and the rear support 402, the tensioning mechanism is located obliquely above one side of the driving wheel 100 and is arranged opposite to the driven wheel set 200 at the lower end of the front support 401;

[0055] The tensioning mechanism comprises a fixed plate 501, a wheel frame 502, a guide rod 503 and a spring 504, one end of the fixed plate 501 is arranged on the rear support 402, a sliding groove 505 is arranged on the inner wall of the front support 401 and the inner wall of the rear support 402, the top of the sliding groove 505 on the front support 401 is provided with a mounting groove 506, the other end of the fixed plate 501 is arranged in the mounting groove 506, a sliding hole 507 is arranged in the middle of the fixed plate 501, the guide rod 503 is slidingly arranged in the sliding hole 507, the lower end of the guide rod 503 is provided with the wheel frame 502, the wheel frame 502 is internally provided with a tensioning wheel 508, the tensioning wheel 508 and the abrasive belt 300 are rolling matched, so that the abrasive belt 300 is in a tensioning state, the wheel frame 502 is arranged in the sliding groove 505 on both sides, the spring 504 is sleeved on the guide rod 503 and located between the wheel frame 502 and the fixed plate 501, the spring 504 provides elastic force, so that the tensioning wheel 508 is always tightly attached to the abrasive belt 300, the tensioning state of the abrasive belt 300 is maintained, the upper end of the guide rod 503 is rotatably provided with a pull rod 509, the width of the pull rod 509 is greater than the thickness, the upper side of the fixed plate 501 on the rear support 402 is provided with an adjusting groove 510, one end of the pull rod 509 extends out of the adjusting groove 510, the upper end of the adjusting groove 510 is provided with a limiting groove 511;

[0056] The pull rod 509 is pulled to move along the adjusting groove 510, the wheel frame 502 can be pulled to move along the sliding groove 505, until the pull rod 509 reaches the limiting groove 511, then the pull rod 509 is rotated, since the width of the pull rod 509 is greater than the thickness, the pull rod 509 can stay in the limiting groove 511, so that the tensioning wheel 508 leaves the abrasive belt 300, the abrasive belt 300 is not in tension, and the abrasive belt 500 can be replaced.

[0057] The angle adjuster comprises a knob 601, a fixed shaft 602, a cam 603, a shaft sleeve 604, a shaft rod 605, a connecting arm 606 and a tension spring 607, the fixed shaft 602 is arranged at the front end of the front support 401, the knob 601 is rotatably arranged on the fixed shaft 602, two cams 603 are arranged on the knob 601, a plurality of clamping grooves 608 are arranged on the wheel circumference of the cam 603, the shaft rod 605 is symmetrically arranged at the front end of the front support 401, the shaft sleeve 604 is rotatably arranged on the shaft rod 605, the connecting arm 606 is arranged on the shaft sleeve 604, the two connecting arms 606 are arranged in a staggered manner, and each connecting arm 606 is matched with a corresponding cam 603, one end of the connecting arm 606 is provided with an arc-shaped protrusion 609, the arc-shaped protrusion 609 is matched with the clamping groove 608, and the connecting arm 606 is positioned, the other end of the connecting arm 606 extends to the two sides of the front support 401 respectively, the end of the connecting arm 606 extending to the side of the front support 401 is provided with a pressing plate 610, a V-shaped placing cavity 611 is formed between the pressing plate 610 and the abrasive belt 300, the end of the connecting arm 606 provided with the arc-shaped protrusion 609 is provided with a hanging ring 612, the two ends of the tension spring 607 are connected with the two hanging rings 612 respectively, so that the arc-shaped protrusion 609 is tightly attached to the outer edge of the cam 603 to achieve angle adjustment by rotating the knob 601.

[0058] The position where the pressing plate 610 and the connecting arm 606 are connected is provided with a cavity 613, the upper end of the cavity 613 extends out of the pressing plate 610 and the connecting arm 606, one end of the cavity 613 extends out of the pressing plate 610, the roller 614 is rotatably arranged in the cavity 613, the upper end of the roller 614 protrudes out of the cavity 613, the end of the cavity 613 extending out of the pressing plate 610 is provided with an end cover 615, and the roller 614 and the end cover 615 are rotatably connected;

[0059] Specifically, the knife is placed in the V-shaped placement cavity 611, and the cutting edge is upward, the back of the knife is placed on the roller 614, and one side of the knife is attached to one side of the pressing plate 610. When the knob 601 is rotated, the cam 603 pushes the arc-shaped protrusion 611 on the connecting arm 606, and the connecting arm 606 rotates around the fixed shaft 602, thereby driving the pressing plate 610 and the knife to move towards the direction of the abrasive belt 300, so that the cutting edge of the knife is attached to the abrasive belt 300, and the grinding of the knife is realized. On the other hand, the grinding angle of the knife is also adjusted, and the grinding requirements of different knives can be met. The cam 603 is provided with a plurality of clamping grooves 608 on the circumference, and the arc-shaped protrusion 611 cooperates with the clamping grooves 608. Since the two ends of the tension spring 607 are connected with the two hanging rings 612 respectively, the connecting arm 606 is pulled, so that the arc-shaped protrusion 611 can stay in the clamping groove 608. In this way, the connecting arm 606 can be positioned, that is, the position of the pressing plate 610 can be fixed, so that the fixed-angle grinding of the knife can be realized. In addition, the tension spring 607 can ensure that the arc-shaped protrusion 611 is tightly attached to the outer edge of the cam 603, so as to achieve the adjustment of the angle of the pressing plate 610 following the rotation of the cam 603. In addition, the design of the roller 614 enables the knife to move forward and backward, thereby realizing the grinding of the entire cutting edge of the knife.

[0060] The electric knife sharpener is characterized in that it comprises the above-mentioned knife sharpening mechanism with adjustable sharpening angle.

[0061] The electric knife sharpener further comprises a shell 701, a control mechanism and a grinding mechanism. The knife sharpening mechanism with adjustable sharpening angle is arranged at the rear end of the shell 701. The shell 701 is provided with plug-in grooves 702 symmetrically on both sides of the upper end. The plug-in grooves 702 are located on both sides of the front support 401. The grinding mechanism is arranged in the plug-in grooves 702. The shell 701 is provided with a control mechanism at the front end.

[0062] The control mechanism comprises a controller 801 and a power adapter 802. The power adapter 802 is arranged at the front end inside the shell 701. The shell 701 is provided with a jack 803 matched with the power adapter 802 at the front end. The power plug is inserted into the power adapter 802 through the jack 803 to supply power to the device. The shell 701 is provided with the controller 801 at the upper end. The controller 801, the power adapter 802 and the servo motor 403 are connected through a line. The controller 801 controls the on-off of the power supply and the switch of the servo motor 403.

[0063] The shell 701 is provided with an upper shell 703 at the upper end of the middle part. The upper shell 703 is provided with notches 704 on the upper end and both sides. The upper shell 703 covers the outside of the knob 601, and the rear end of the upper shell 703 is connected with the front support 401. The knob 601 extends out of the notch 704 on the upper end of the upper shell 703. One end of the connecting arm 606 extends out of the notch 704 on the side of the upper shell 703.

[0064] The rear end of the shell 701 is provided with a door 705 which is rotatable through a shaft, the door 705 is located at the rear side of the rear support 402, and forms protection for the angle-adjustable knife grinding mechanism, and also facilitates opening of the door 705, replacement of the abrasive belt 300 or internal maintenance; the upper end of the door 705 is provided with an upper slot 706, the upper ends of the front support 401 and the rear support 402 are provided with an upper cover 707, the rear end of the upper cover 707 is connected and matched with the upper slot 706, the front end of the upper cover 707 is placed on the upper shell 703, symmetrical V-shaped grooves 708 are arranged on the door 705, the V-shaped grooves 708 are matched with the V-shaped placing cavity 611, and the V-shaped grooves 708 are used for placing the knife.

[0065] The grinding mechanism comprises a grinding frame 901 and a plate body 902, the grinding frame 901 is arranged in the plug-in slot 702, the upper end of the grinding frame 901 is provided with an extension plate 903 on one side, the extension plate 903 extends towards the abrasive belt 300 and forms protection for the pressing plate 610, one side of the grinding frame 901 is provided with a groove 904, the plate body 902 is rotatably arranged in the groove 904 through a shaft, one side of the plate body 902 is provided with a sand plate 905, when the plate body 902 is rotated and turned over, one side of the plate body 902 is placed on the extension plate 903, so that the sand plate 905 is exposed, so that different tools can be ground in use.

[0066] In the specific implementation,

[0067] In use, the power plug is inserted into the power adapter 802, then the controller 801 is used to connect the power supply of the equipment, the servo motor 403 is started, the servo motor 403 rotates to drive the abrasive belt 300 to rotate through the driving wheel 100, then the back of the knife is placed in the V-shaped groove 110 and the V-shaped placing cavity 611, then the knob 601 is slid and rotated by hand, the rotation of the knob 601 drives the cam 603 to rotate, because the two ends of the tension spring 607 are connected with the hanging rings 612 on the two connecting arms 606 respectively, the arc-shaped protrusion 609 is tightly attached to the outer edge of the cam 603, when the cam 603 rotates, one end of the connecting arm 606 which is attached to the cam 603 moves up and down, so that the whole connecting arm 606 rotates around the shaft rod 605, and then the adjustment of the included angle between the pressing plate 610 and the abrasive belt 300 at the other end of the connecting arm 606 is realized, when the pressing plate 610 is close to the abrasive belt 300, the knife is pushed to be close to the abrasive belt 300 and attached to the abrasive belt 300, the grinding of the knife is realized, and the back of the knife is located on the roller 614, so that the knife can be pushed to move forward and backward, and then the grinding of the whole cutting edge of the knife is realized.

[0068] When other tools need to be ground, the plate body 902 can be turned over, one side of the plate body 902 is placed on the extension plate 903 to support the plate body 902, at this time, the sand plate 905 is located at the upper part, so that the sand plate 905 can grind different tools;

[0069] When the sand belt 300 needs to be replaced, the rear door 705 is opened, the pull rod 509 is pulled to move along the adjusting groove 510, the wheel frame 502 can be pulled to move along the sliding groove 505 until the pull rod 509 reaches the limiting groove 511, then the pull rod 509 is rotated, since the width of the pull rod 509 is greater than the thickness, the pull rod 509 can stay in the limiting groove 511, so that the tensioning wheel 508 is away from the sand belt 300, the sand belt 300 is not tensioned, and the sand belt 300 can be replaced; after the replacement is completed, the pull rod 509 is rotated to be separated from the limiting groove 511, under the action of the spring 704, the pull rod 509 moves downward along the adjusting groove 510, and the wheel frame 502 also moves downward along the sliding groove 505 until the tensioning wheel 508 abuts against the sand belt 300, so that the sand belt 300 is tensioned.

[0070] In the description of the embodiments of the utility model, it needs to be explained that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0071] In addition, if the terms "horizontal", "vertical", "overhanging" and the like are not required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0072] In the description of the embodiments of the utility model, "a plurality of" represents at least 2.

[0073] In the description of the embodiments of the utility model, still need to explain, unless another explicit provision and limitation, if appear the term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0074] The utility model and its implementation mode have been described above, and this description is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In general, if the ordinary skilled in the art is inspired, without departing from the utility model, without creative design, similar structure mode and embodiment of the technical scheme, which should belong to the protection scope of the utility model.

Claims

1. A sharpening mechanism for adjusting the angle of a sharpened blade, characterized by, Include: Angle regulator, support, driving wheel (100), driven wheel group (200) and abrasive belt (300), the support inner bottom is equipped with driving wheel (100), the support inner upper end is equipped with driven wheel group (200) symmetrically, the support lower end driving wheel (100) one side's oblique upper position is equipped with driven wheel group (200), the abrasive belt (300) is set on driving wheel (100), driven wheel group (200) and is driven by driving wheel (100) abrasive belt (300) rotation, realizes the grinding of cutter, the support front end is equipped with angle regulator, realizes the adjustment of cutter grinding angle, to adapt to the grinding demand of different cutters.

2. The angle-adjustable knife sharpening mechanism of claim 1, wherein: The support includes a front support (401) and a rear support (402) disposed behind the front support (401), the driving wheel (100), the driven wheel group (200) and the abrasive belt (300) are located between the front support (401) and the rear support (402), and the shafts of the driven wheel group (200) are connected to the front support (401) and the rear support (402) respectively, the front end of the front support (401) below is equipped with a servo motor (403), the rotating shaft of the servo motor (403) passes through the front support (401) and extends between the front support (401) and the rear support (402), and the driving wheel (100) is disposed on the rotating shaft of the servo motor (403).

3. The angle-adjustable knife sharpening mechanism of claim 2, wherein: A tensioning mechanism cooperating with the abrasive belt (300) is disposed between the front support (401) and the rear support (402), and the tensioning mechanism is located obliquely above the driving wheel (100) and is disposed opposite to the driven wheel group (200) at the lower end of the front support (401). The tensioning mechanism comprises a fixed plate (501), a wheel frame (502), a guide rod (503) and a spring (504), one end of the fixed plate (501) is arranged on the rear support (402), the inner walls of the front support (401) and the rear support (402) are both provided with sliding grooves (505), the top of the sliding groove (505) on the front support (401) is provided with a mounting groove (506), the other end of the fixed plate (501) is arranged in the mounting groove (506), the middle of the fixed plate (501) is provided with a sliding hole (507), the guide rod (503) is slidingly arranged in the sliding hole (507), the lower end of the guide rod (503) is provided with the wheel frame (502), the wheel frame (502) is provided with a tensioning wheel (508) inside, the tensioning wheel (508) and the abrasive belt (300) are rolling matched, so that the abrasive belt (300) is in a tensioning state, the wheel frame (502) is located in the sliding groove (505) on both sides, the spring (504) is sleeved on the guide rod (503) and located between the wheel frame (502) and the fixed plate (501), the upper end of the guide rod (503) is rotatably provided with a pull rod (509), the upper side of the fixed plate (501) on the rear support (402) is provided with an adjusting groove (510), one end of the pull rod (509) extends out of the adjusting groove (510), and the upper end of the adjusting groove (510) is provided with a limiting groove (511).

4. The knife sharpening mechanism with adjustable sharpening angle according to claim 2, wherein: The angle regulator comprises a knob (601), a fixed shaft (602), a cam (603), a shaft sleeve (604), a shaft rod (605), a connecting arm (606) and a tension spring (607), the fixed shaft (602) is arranged at the front end of the front support (401), the knob (601) is rotatably arranged on the fixed shaft (602), two cams (603) are arranged on the knob (601), a plurality of clamping grooves (608) are arranged on the wheel circumference of the cam (603), the shaft rod (605) is symmetrically arranged at the front end of the front support (401), the shaft sleeve (604) is rotatably arranged on the shaft rod (605), the connecting arm (606) is arranged on the shaft sleeve (604), the two connecting arms (606) are arranged in a staggered manner, and each connecting arm (606) is matched with a corresponding cam (603), one end of the connecting arm (606) is provided with an arc-shaped protrusion (609), the arc-shaped protrusion (609) is matched with the clamping groove (608), and the arc-shaped protrusion (609) is used for positioning the connecting arm (606), the other end of the connecting arm (606) extends to the two sides of the front support (401) respectively, the end of the connecting arm (606) extending to the side of the front support (401) is provided with a pressing plate (610), a V-shaped placing cavity (611) is formed between the pressing plate (610) and the abrasive belt (300), the end of the connecting arm (606) provided with the arc-shaped protrusion (609) is provided with a hanging ring (612), and the two ends of the tension spring (607) are connected with the two hanging rings (612) respectively, so that the arc-shaped protrusion (609) is tightly attached to the outer edge of the cam (603) to achieve angle adjustment by rotating the knob (601).

5. The knife sharpening mechanism of claim 4, wherein: The position where the pressing plate (610) and the connecting arm (606) are connected is provided with a cavity (613), the upper end of the cavity (613) extends out of the pressing plate (610) and the connecting arm (606), one end of the cavity (613) extends out of the pressing plate (610), a roller (614) is rotatably arranged in the cavity (613), the upper end of the roller (614) protrudes out of the cavity (613), one end of the cavity (613) extending out of the pressing plate (610) is provided with an end cover (615), and the roller (614) and the end cover (615) are rotatably connected.

6. An electric knife sharpener characterized by: The knife sharpening mechanism of any one of claims 1-5; Further comprising a machine shell (701), a control mechanism and a grinding mechanism, the knife sharpening mechanism is arranged at the rear end of the machine shell (701), the upper end of the machine shell (701) is symmetrically provided with a plug-in slot (702) on both sides, the plug-in slot (702) is located on both sides of the front support (401), the plug-in slot (702) is provided with the grinding mechanism, and the front end of the machine shell (701) is provided with the control mechanism.

7. The electric knife sharpener of claim 6, wherein: The control mechanism comprises a controller (801) and a power adapter (802), the power adapter (802) is arranged at the front end inside the casing (701), the front end of the casing (701) is provided with a socket (803) matched with the power adapter (802), and the upper end of the casing (701) is provided with the controller (801).

8. The electric knife sharpener according to claim 6, characterized in that: The upper end of the middle part of the casing (701) is provided with an upper casing (703), the upper end and both sides of the upper casing (703) are provided with notches (704), the upper casing (703) covers the outside of the knob (601), the rear end of the upper casing (703) is connected with the front support (401), and the upper part of the knob (601) extends out of the notch (704) at the upper end of the upper casing (703), and one end of the connecting arm (606) extends out of the notch (704) at the side of the upper casing (703).

9. The electric knife sharpener according to claim 8, characterized in that: The rear end of the casing (701) is provided with a door (705) rotatable through a shaft, the door (705) is located at the rear side of the rear support (402) and forms protection for the knife sharpening mechanism with adjustable sharpening angle, the upper end of the door (705) is provided with an upper slot (706), the upper part of the front support (401) and the rear support (402) is provided with an upper cover (707), the rear end of the upper cover (707) is connected and matched with the upper slot (706), the front end of the upper cover (707) is arranged on the upper casing (703), the door (705) is symmetrically provided with V-shaped grooves (708), the V-shaped grooves (708) are matched with the V-shaped placing cavities (611) and used for placing knives.

10. The electric knife sharpener according to claim 9, characterized in that: The grinding mechanism comprises a grinding frame (901) and a plate body (902), the grinding frame (901) is arranged in the plug-in slot (702), the upper end of the grinding frame (901) is provided with an extension plate (903) on one side, the extension plate (903) extends towards the direction of the sand belt (300) and forms protection for the pressing plate (610), one side of the grinding frame (901) is provided with a groove (904), the plate body (902) is rotatably arranged in the groove (904) through a shaft, and one side of the plate body (902) is provided with a sand plate (905).

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