Tool sharpener

Abstract

The utility model discloses a knife grinder, which relates to the technical field of knife grinding and comprises a rack, a knife fixing device and a knife grinding component, the knife fixing device is arranged on the rack and used for clamping a knife to be ground to move between a feeding position and a knife grinding position, and the knife grinding component is arranged on the rack. The knife sharpening assembly comprises a power output device, a grinding piece and an angle adjusting device, the power output device is rotationally connected with the rack, the grinding piece is arranged on the power output device, and the power output device is used for driving the grinding piece to rotate so as to grind the to-be-ground knife; and the angle adjusting device is also arranged on the rack and is in driving connection with the power output device, and the angle adjusting device is used for driving the power output device to rotate so as to adjust the grinding angle of the grinding piece. Therefore, the grinding angle of the grinding piece is changed by adjusting the pitch angle of the power output device, and the grinding requirements of various types of cutters can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutter grinding technical field, especially a kind of sharpener. BACKGROUND

[0002] The grinding of cutter is an important link of processing quality, double-sided sharpener as common cutter grinding equipment, widely used in cutter processing field, its main function is to restore its sharpness and shape by the rotation of grinding wheel, the existing single-sided sharpener usually needs two machines to polish the cutting edges of cutter two sides, needs repeatedly disassembles multiple times, but double-sided sharpener can polish two cutting edges once, but due to structural limitations Angle cannot be adjusted, leading to unable to adapt to the grinding demand of various types of cutters. SUMMARY

[0003] The main purpose of the utility model is to provide a sharpener, to solve the angle adjustment limitation problem of existing double-sided sharpener.

[0004] To achieve the above object, the utility model provides a sharpener, which comprises:

[0005] A rack;

[0006] A cutter fixing device movably arranged on the rack between a feeding position and a sharpening position, the cutter fixing device is used for clamping a cutter to be sharpened; and

[0007] A sharpening assembly, comprising a power output device, a grinding part and an angle adjusting device, the power output device is rotationally connected with the rack, the grinding part is arranged on the power output device, the power output device is used to drive the grinding part to rotate to polish the cutter to be sharpened, the angle adjusting device comprises a first motor arranged on the rack and a transmission assembly, the transmission assembly is connected with the first motor and the power output device respectively, the first motor drives the power output device to rotate through the transmission assembly, to adjust the pitch angle of the power output device and control the grinding angle of the grinding part.

[0008] In an embodiment, the transmission assembly comprises a guide seat, a sliding block and a connecting piece, the sliding block is movably arranged on the guide seat and is drivingly connected with the first motor, one end of the connecting piece is rotationally connected with the sliding block, and the other end of the connecting piece is rotationally connected with the power output device.

[0009] In an embodiment, a first rotating shaft is arranged on the rack, and the power output device is rotationally connected with the rack through the first rotating shaft.

[0010] In an embodiment, the power output device is further provided with a second rotating shaft, the second rotating shaft is arranged apart from the first rotating shaft, and the end of the connecting member away from the sliding block is rotationally connected with the second rotating shaft.

[0011] In an embodiment, the sliding block is provided with a third rotating shaft, and the end of the connecting member away from the power output device is rotationally connected with the third rotating shaft.

[0012] In an embodiment, the power output device comprises a mounting seat, a second motor arranged on the mounting seat, and a transmission shaft, one end of the transmission shaft is drivingly connected with the second motor, and the other end of the transmission shaft is provided with the grinding member.

[0013] In an embodiment, the power output device further comprises a transmission belt and a belt wheel, at least one belt wheel is arranged on the second motor and the transmission shaft respectively, and the transmission belt is arranged around the belt wheels of the second motor and the transmission shaft.

[0014] In an embodiment, the number of the knife sharpening assemblies is two, the grinding member is a grinding wheel or a flexible grinding and polishing wheel, the two grinding wheels or flexible grinding and polishing wheels are arranged apart along a first direction to form the knife sharpening position between the two grinding wheels or flexible grinding and polishing wheels, and the axis direction of the grinding wheel or flexible grinding and polishing wheel forms an angle with the first direction.

[0015] In an embodiment, the knife fixing device comprises a rotating mechanism and a clamp arranged on the rotating mechanism, the clamp is used for clamping the knife to be sharpened and arranging the blade along a second direction, and the rotating mechanism is used for driving the clamp to rotate to adjust the blade surface of the knife to be sharpened to adapt to the grinding surface of the grinding member.

[0016] In an embodiment, the knife sharpening machine further comprises a track assembly, the track assembly comprises an X-axis track, a Y-axis track, and a Z-axis track, the X-axis track is arranged along the first direction, the Y-axis track is movably arranged on the X-axis track and arranged along the second direction, the Z-axis track is movably arranged on the Y-axis track and arranged along a third direction, the third direction is the height direction of the rack, and the knife fixing device is arranged on the Z-axis track to move the knife fixing device between the feeding position and the knife sharpening position.

[0017] In an embodiment, the knife sharpening machine further comprises a control system, the control system is electrically connected with the power output device, the angle adjusting device, and the track assembly respectively to control the power output device, the angle adjusting device, and the track assembly to work cooperatively and process the knife to be sharpened.

[0018] The technical scheme of the utility model discloses an angle adjusting device of the knife grinder drives the power output device and the grinding piece to rotate synchronously to adjust the adjusting angle of the grinding piece, specifically, the knife grinder includes a rack, a tool fixing device and a knife grinding assembly, the tool fixing device is arranged on the rack and is used for clamping the knife to be ground to move between a feeding position and a knife grinding position, the knife grinding assembly includes a power output device, a grinding piece and an angle adjusting device, the power output device is rotationally connected with the rack, the grinding piece is arranged on the power output device, the power output device is used for driving the grinding piece to rotate to polish the knife to be ground, the angle adjusting device includes a first motor arranged on the rack and a transmission assembly, the transmission assembly is connected with the first motor and the power output device respectively, the first motor drives the power output device to rotate through the transmission assembly to adjust the grinding angle of the grinding piece. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0020] Figure 1 The structure schematic diagram of the embodiment of the knife grinder provided by the utility model is shown in the figure.

[0021] Figure 2 The schematic diagram of the power output device and the grinding piece angle adjustment in the embodiment of the knife grinder provided by the utility model is shown in the figure.

[0022] Figure 3 The Figure 1 The top view of the knife grinder is shown in the figure.

[0023] Figure 4 The Figure 3 The enlarged view of the position pointed by the arrow A in the figure.

[0024] Figure 5 The installation structure schematic diagram of the tool fixing device and the knife to be ground in the embodiment of the knife grinder provided by the utility model is shown in the figure.

[0025] Figure 6 The structure schematic diagram of the rotating mechanism, the clamp and the knife to be ground in the embodiment of the knife grinder provided by the utility model is shown in the figure.

[0026] Figure 7 The schematic diagram of the rotating mechanism driving the clamp and the knife to be ground to rotate in the embodiment of the knife grinder provided by the utility model is shown in the figure.

[0027] Figure 8 Part structure schematic diagram of one embodiment of the knife grinder provided by the utility model.

[0028] Explanation of reference numerals:

[0029] 100, knife grinder;1, rack;11, first rotating shaft;2, knife fixing device;21, rotating mechanism;22, clamp;3, knife grinding assembly;31, power output device;311, second motor;312, transmission shaft;313, transmission belt;314, pulley;315, mounting seat;316, second rotating shaft;32, grinding piece;33, angle adjusting device;331, first motor;332, transmission assembly;3321, guide seat;3322, sliding block;3323, connecting piece;3324, third rotating shaft;4, track assembly;41, X-axis track;42, Y-axis track;43, Z-axis track;200, knife to be ground.

[0030] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0033] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0034] The utility model provides a knife grinder 100.

[0035] Please refer to Figures 1 to 3 In an embodiment of the utility model, the knife grinder 100 includes rack 1, tool fixing device 2 and knife grinding assembly 3, tool fixing device 2 is arranged on rack 1 and is used to clamp the movement of the knife to be ground 200 between feed position and knife grinding position, and the knife grinding assembly 3 includes power output device 31, grinding piece 32 and angle adjusting device 33, power output device 31 is rotatably connected with rack 1, grinding piece 32 is arranged on power output device 31, and power output device 31 is used to drive grinding piece 32 to rotate to polish the knife to be ground 200, and angle adjusting device 33 is also arranged on rack 1 and is drivingly connected with power output device 31.

[0036] Further, the angle adjusting device 33 includes the first motor 331 and the transmission assembly 332, the first motor 331 is arranged on the side away from the grinding piece 32 of the power output device 31, and the first motor 331 is connected with the power output device 31 through the transmission assembly 332, and the power output device 31 is rotatably connected with the rack 1, the first motor 331 can drive the power output device 31 to rotate on the rack 1 and adjust the pitch angle, and then control the angle between the grinding surface of the grinding piece 32 and the tool. As can be seen above, the pitch angle of the power output device 31 is adjusted to change the grinding angle of the grinding piece 32, so that the grinding piece 32 can process various angle blades, and the polishing demand of various types of tools can be met.

[0037] The first motor 331 and the transmission component 332 can form an independent control mechanism. The first motor 331 can be a servo motor, linear motor, etc., which can achieve precise angle adjustment and ensure the quality of the finished tool. The transmission component 332 can be a linkage mechanism, cam mechanism, gear mechanism, lifting mechanism, etc., to enable the power output device 31 to adjust the pitch angle. It can be selected according to actual needs, and no specific limitation is made here.

[0038] like Figures 2 to 4 As shown, in one embodiment of this utility model, the transmission component 332 includes a guide seat 3321, a slider 3322, and a connector 3323. Specifically, the guide seat 3321 is fixed on the frame 1 and has a sliding groove inside. The sliding groove extends along the arrangement direction of the first motor 331 and the power output device 31. The slider 3322 is slidably disposed in the sliding groove and connected to the output end of the first motor 331. The connector 3323 is a connecting rod with one end rotatably connected to the slider 3322 and the other end rotatably connected to the power output device 31. The positions of the connector 3323 and the frame 1 rotatably connected to the power output device 31 are spaced apart.

[0039] When angle adjustment is required, the first motor 331 pushes the slider 3322 to move within the groove of the guide seat 3321. The slider 3322, through the connecting piece 3323, drives the power output device 31 to rotate, thereby adjusting the pitch angle of the grinding workpiece 32. When the angle is adjusted to the preset value, the first motor 331 can keep the slider 3322 stationary, so that the grinding surface of the grinding workpiece 32 is maintained at a specific grinding angle. It is understandable that the transmission component 332 has a simple structure, is easy to assemble, and has low cost.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, a first rotating shaft 11 is provided on the frame 1. The bottom of the power output device 31 is rotatably connected to the frame 1 via the first rotating shaft 11 near the grinding workpiece 32. A second rotating shaft 316 is provided on the side of the power output device 31 away from the grinding workpiece 32. The end of the connector 3323 away from the slider 3322 is rotatably connected to the power output device 31 via the second rotating shaft 316. A third rotating shaft 3324 is also provided on the slider 3322. The end of the connector 3323 away from the second rotating shaft 316 is rotatably connected to the slider 3322 via the third rotating shaft 3324.

[0041] When the first motor 331 pushes the slider 3322 to move towards the power output device 31, the connecting piece 3323 pushes up the power output device 31, so that the grinding surface of the grinding piece 32 is inclined downward, and the angle of the grinding surface can be accurately adjusted by controlling the moving distance of the slider 3322, so as to adapt to the machining requirements of various cutters. It can be understood that the rotating shaft structure can be smoothly transmitted and stable, which is beneficial to the accuracy of controlling the angle of the grinding piece 32.

[0042] As shown in Figures 1 to 3 In an embodiment of the utility model, the power output device 31 includes the mounting seat 315, the second motor 311 and the transmission shaft 312, specifically, the mounting seat 315 is rotatably connected with the rack 1 through the first rotating shaft 11 and rotatably connected with the connecting piece 3323 through the second rotating shaft 316, and a main shaft box is further arranged on the mounting seat 315, the transmission shaft 312 is arranged in the main shaft box and extends out of the main shaft box at both ends, one end of the transmission shaft 312 close to the grinding position is connected with the grinding piece 32, the second motor 311 is fixedly installed above the main shaft box, and the output end of the second motor 311 is drivingly connected with one end of the transmission shaft 312 away from the grinding piece 32, the second motor 311 drives the grinding piece 32 to rotate through the transmission shaft 312 to grind the cutting edge of the cutter.

[0043] The side of the grinding piece 32 away from the transmission shaft 312 is a grinding surface, the first motor 331 drives the mounting seat 315 to rotate around the first rotating shaft 11 through the connecting piece 3323, so that the transmission shaft 312, the second motor 311 on the mounting seat 315 and the grinding piece 32 on the transmission shaft 312 rotate together, and the inclination angle of the grinding surface can be adjusted.

[0044] As shown in Figure 1 In an embodiment of the utility model, the power output device 31 further includes the transmission belt 313 and the pulley 314, specifically, the output end of the second motor 311 and one end of the transmission shaft 312 away from the grinding piece 32 are respectively provided with the pulley 314, and a plurality of transmission belts 313 are arranged on the two pulleys 314 to realize transmission. It can be understood that the pulley 314 and the transmission belt 313 have simple structure, low cost, stable transmission process, less noise, high flexibility, convenient installation and adjustment, of course, in addition to the above embodiment, in some other embodiments of the utility model, gears, chains and other mechanisms can be used between the second motor 311 and the transmission shaft 312 for transmission, which is not limited here.

[0045] It needs to be explained that the position near the tool to be ground 200 or the grinding part 32 is usually provided with a water spraying pipe for water spraying cooling, the second motor 311 is connected with the transmission shaft 312 through the transmission belt 313, so that the second motor 311 is away from the water spraying area, and the motor waterproof structure does not need to be arranged, which is helpful for reducing the equipment cost and reducing the influence of motor vibration on the grinding precision. In addition, the structure can also change the diameter of the pulley 314 according to the demand of the grinding workpiece to accurately set the required rotating speed, cooperate with the water spraying cooling flow, and better improve the tool product quality and production efficiency.

[0046] As Figures 1 to 3 shown, in an embodiment of the utility model, the number of the tool grinding assembly 3 is two, specifically, two tool grinding assemblies 3 are arranged on the two sides of the tool grinding position, and two grinding parts 32 are both grinding wheels or flexible grinding and polishing wheels, and the grinding wheel is taken as the main embodiment to be described in the scheme, two grinding wheels are arranged along the first direction, and the first direction is the length direction of the rack 1, and the area between the two grinding wheels is the tool grinding position, and the opposite side of the two grinding wheels is the grinding surface, please refer to Figure 3 , the axis of the two grinding wheels coincides with the axis of the respective transmission shaft 312, and the transmission shaft 312 and the second motor 311 are obliquely installed on the mounting seat 315 to form an angle between the axis direction of the grinding wheel and the first direction. It can be understood that the axis of the grinding wheel deviates from the first direction to make the grinding surface contact with the blade part of the tool, avoid grinding of other parts of the tool body by the grinding part 32, and make the machining structure rationalization.

[0047] Further, the grinding part 32 can also adopt a flexible grinding and polishing wheel, which can finely polish the surface of the tool to improve the quality of the product. The grinding part specifically adopts which kind can be selected according to actual demand, which is not limited here.

[0048] As Figures 5 to 7 shown, in an embodiment of the utility model, the tool fixing device 2 includes a rotating mechanism 21 and a clamp 22, specifically, the clamp 22 is arranged on the rotating mechanism 21, when machining is needed, the back side of the tool can be loaded into the clamp 22, and the tool is arranged along the second direction and the blade is upward, and the second direction is the width direction of the rack 1, and the rotating mechanism 21 is used to drive the clamp 22 and the tool to be ground 200 to rotate to make the blade surface of the tool to be ground 200 adapt to the grinding surface of the grinding part 32, and further refer to Figure 8 , when machining some curve blades, the rotating mechanism 21 can control the tool body to rotate to make the blade accurately adapt to the grinding surface of the grinding part 32, ensure the consistency of the blade machining width, and improve the appearance of the tool product.

[0049] As Figures 1 to 3As shown, in an embodiment of the utility model, the knife grinder 100 further includes a track assembly 4, specifically, the track assembly 4 includes X-axis track 41, Y-axis track 42 and Z-axis track 43, X-axis track 41 is set on the frame 1 along the first direction, Y-axis track 42 is movably set on X-axis track 41 along the second direction, further, Y-axis track 42 is further provided with Z-axis track 43, the Z-axis track 43 is movably set along the height direction of the frame 1, the cutter fixing device 2 is set on the Z-axis track 43, Y-axis track 42 moves along the first direction on X-axis track 41, Z-axis track 43 moves along the second direction on Y-axis track 42, so that the cutter fixing device 2 can be switched between the feeding position and the knife grinding position, the position of cutter fixing device 2 can be adjusted by the lifting of Z-axis track 43 along the height direction of the frame 1, so that the cutting edge of the cutter contacts or separates from the grinding piece 32.

[0050] In processing, X-axis track 41, Y-axis track 42 cooperate to drive the cutter to be ground 200 to first approach one of the grinding wheels and first polish one side cutting edge, in this process, the contact between the cutting edge and the grinding surface is dynamically adjusted by Z-axis track 43 along the second direction and the height direction of the frame 1, after completing unilateral polishing, the cutter is driven to approach another grinding wheel by X-axis track 41, Y-axis track 42, and the above process is repeated, that is, the double-sided polishing of the cutting edge can be realized. It can be understood that the cutter only needs to be placed in the knife grinder 100 for one-time polishing, compared with the existing knife grinder which needs to be disassembled and assembled multiple times, the steps of the present scheme are simpler, and the production efficiency is higher.

[0051] In an embodiment of the utility model, the knife grinder 100 further includes a control system, specifically, the control system is electrically connected with the power output device 31, the angle adjusting device 33 and the track assembly 4 respectively, to control the power output device 31, the angle adjusting device 33 and the track assembly 4 to work cooperatively, in addition, the control system is further electrically connected with the rotating mechanism 21, to be used for adjusting the position of the cutter in real time, the control system can edit program, so that the knife grinder 100 can complete the double-sided grinding of the cutting edge at one time.

[0052] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings contents, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A knife-sharpening machine characterized in that, The utility model relates to a kind of knife grinding machine, including: Rack; Tool fixing device, movable between feed position and grinding position, it is set on the rack, the tool fixing device is used to clamp the tool to be ground; And Grinding assembly, including power output device, abrasive and angle adjusting device, the power output device is rotatably connected with the rack, the abrasive is set on the power output device, the power output device is used to drive the abrasive rotation to polish the tool to be ground, the angle adjusting device includes first motor and transmission assembly set on the rack, the transmission assembly is connected with the first motor and the power output device respectively, the first motor is rotated by the transmission assembly to drive the power output device, to adjust the pitch angle of the power output device in turn control the grinding angle of the abrasive.

2. The machine of claim 1 wherein, The transmission assembly includes guide seat, slider and connecting piece, the slider is movably set on the guide seat and is drivenly connected with the first motor, one end of the connecting piece is rotatably connected with the slider, and the other end of the connecting piece is rotatably connected with the power output device.

3. The knife-sharpening machine of claim 2, wherein, The rack is provided with a first rotating shaft, and the power output device is rotatably connected with the rack through the first rotating shaft.

4. The knife-sharpening machine of claim 3, wherein The power output device is further provided with a second rotating shaft, and the second rotating shaft is spaced apart from the first rotating shaft, and the end of the connecting piece away from the slider is rotatably connected with the second rotating shaft. And / or, the slider is provided with a third rotating shaft, and the end of the connecting piece away from the power output device is rotatably connected with the third rotating shaft.

5. The machine of any one of claims 1 to 4, wherein, The power output device includes a mounting seat, a second motor and a transmission shaft arranged on the mounting seat, one end of the transmission shaft is drivingly connected with the second motor, and the other end of the transmission shaft is provided with the abrasive.

6. The machine of claim 5 wherein, The power output device further includes a transmission belt and a pulley, at least one pulley is arranged on the second motor and the transmission shaft respectively, and the transmission belt is wound around the pulleys on the second motor and the transmission shaft.

7. The knife-sharpening machine of claim 1, wherein The number of grinding assemblies is two, the abrasive is set as a grinding wheel or a flexible grinding and polishing wheel, and the two grinding wheels or flexible grinding and polishing wheels are arranged at intervals along a first direction to form the grinding position between the two grinding wheels or flexible grinding and polishing wheels, and the axis direction of the grinding wheel or flexible grinding and polishing wheel forms an angle with the first direction.

8. The knife-sharpening machine of claim 7, wherein, The tool fixing device includes a rotating mechanism and a clamp arranged on the rotating mechanism, the clamp is used to clamp the tool to be ground and make the cutting edge arranged along a second direction, and the rotating mechanism is used to drive the clamp to rotate to adjust the cutting edge surface of the tool to be ground to adapt to the grinding surface of the abrasive.

9. The knife-sharpening machine of claim 8, wherein, The knife grinder further comprises a track assembly, the track assembly comprising an X-axis track, a Y-axis track and a Z-axis track, the X-axis track being arranged along the first direction, the Y-axis track being movably arranged on the X-axis track and extending along the second direction, the Z-axis track being movably arranged on the Y-axis track and extending along a third direction, the third direction being a height direction of the frame, the knife fixing device being arranged on the Z-axis track so as to move the knife fixing device between the feeding position and the grinding position.

10. The machine of claim 9 wherein, The knife grinder further comprises a control system, the control system being electrically connected with the power output device, the angle adjusting device and the track assembly respectively, so as to control the power output device, the angle adjusting device and the track assembly to work cooperatively and process the knife to be ground.

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