CN111590402A

CN111590402A - Automatic feeding knife sharpener capable of adjusting grinding angle of cutter

Info

Publication number: CN111590402A
Application number: CN202010476751.6A
Authority: CN
Inventors: 龙晓斌; 胡海峰; 龙川
Original assignee: Zhongshan Zhongke Intelligent Manufacturing Research Institute Co ltd
Current assignee: Zhongshan Zhongke Intelligent Manufacturing Research Institute Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-28

Abstract

The invention discloses an automatic feeding knife sharpener capable of adjusting the grinding angle of a cutter, which comprises a workbench, a cutter fixing mechanism, a grinding mechanism and a feeding mechanism, wherein the workbench is provided with a feeding hole; the cutter fixing mechanism comprises at least two die holders; the grinding mechanism is arranged on one side of the die holder and is used for grinding a workpiece to be ground fixed on the die holder; the feeding mechanism conveys the ground workpiece to a die holder of the cutter fixing mechanism; the grinding angle of the ground workpiece is adjusted by adjusting the swing angle of the die holder; when the tool grinding device is used, a feeding mechanism grabs and takes out a ground workpiece placed in the material box and conveys the ground workpiece to the die holder of the tool fixing mechanism, the grinding mechanism grinds the tool, when the tool grinding angle is needed to be realized, only the swing angle of the die holder needs to be adjusted, and the grinding angle of the tool grinding mechanism does not need to be rotated, so that the design of the tool grinding mechanism can be simple, in the grinding process of the tool, full-automatic processing is realized, the production efficiency is higher, and the use is safer.

Description

Automatic feeding knife sharpener capable of adjusting grinding angle of cutter

Technical Field

The invention relates to the field of cutter grinding machines, in particular to an automatic feeding knife sharpener capable of adjusting the grinding angle of a cutter.

Background

The cutter is an indispensable tool in daily life of people, the cutter needs to be ground to enable the cutter to be sharp when the cutter is produced, the traditional cutter grinding is manually completed, the manual cutter grinding is performed, the working efficiency is low, the yield is low, the manual consumption is high, a large number of hands are required to be invested, the consistency of the ground cutter is difficult to be ensured, although an automatic cutter grinding machine is already available on the market, the cutter grinding machine in the prior art realizes the grinding of a cutting edge by rotating the angle of a grinding mechanism, so that the structure of the grinding mechanism is complicated, and the realization difficulty is high; in addition, many of the existing cutter grinding machines are manually clamped cutters, namely, the cutters are manually fed, so that the production efficiency is low, the feeding is unsafe, the automation degree is low, and an operator is easily injured if the operation is improper.

Disclosure of Invention

The invention aims to provide an automatic feeding knife sharpener capable of adjusting the grinding angle of a cutter, which can directly adjust the grinding angle through a cutter mounting die holder, so that the structure of a grinding mechanism is simple, the realization difficulty is low, the automatic feeding of the cutter can be realized, and the automation degree of equipment is high and safe.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic feeding knife sharpener capable of adjusting the grinding angle of a cutter comprises a workbench, a cutter fixing mechanism, a grinding mechanism and a feeding mechanism;

the workbench is used for bearing the cutter fixing mechanism, the grinding mechanism and the feeding mechanism;

the cutter fixing mechanism comprises at least two die holders capable of adjusting swing angles, and the die holders are used for fixing ground workpieces;

the grinding mechanism is arranged on one side of the die holder and is used for grinding a workpiece to be ground, which is fixed on the die holder;

the feeding mechanism is used for conveying the ground workpiece to the die holder of the cutter fixing mechanism or taking out the ground workpiece from the die holder of the cutter fixing mechanism;

the grinding angle of the ground workpiece is adjusted by adjusting the swing angle of the die holder.

Preferably, the grinding machine further comprises a feeding mechanism, wherein the feeding mechanism is arranged on the table top of the workbench and used for conveying the material tray with the ground workpiece to a feeding position where the feeding mechanism grabs the ground workpiece.

Preferably, the cutter fixing mechanism further comprises a die holder mounting table and a pushing device;

the die holder is rotatably arranged on the front end surface of the die holder mounting table;

the pushing device is arranged on the workbench and can push the die holder, so that the adjustment of the swing angle of the die holder relative to the die holder mounting table is realized.

Preferably, the tool fixing mechanism further comprises a reset element, the reset element is installed on the die holder installation table and the die holder, and the reset element enables the die holder to reset towards the direction opposite to the pushing direction of the pushing device.

Preferably, the pushing device comprises a screw rod and a movable push rod penetrating through the die holder mounting table, the movable push rod penetrates through the front end face and the rear end face of the die holder mounting table and can move back and forth on the die holder mounting table, one end of the movable push rod abuts against the die holder, the other end of the movable push rod is pushed by the screw rod, and the movable push rod can push the die holder in a moving stroke, so that the adjustment of the swing angle of the die holder relative to the die holder mounting table is realized.

Preferably, the die holder mounting table is rotatable; at least 2 die holders are distributed along the same rotating circumference of the die holder mounting table; the number of the movable push rods is equal to that of the die holders, and the movable push rods are arranged corresponding to the die holders.

Preferably, the grinding mechanism is movable on the table in an X-axis direction, a Y-axis direction, and a Z-axis direction, respectively.

Preferably, an X-axis moving unit is arranged on the worktable, a Z-axis moving unit is arranged on the X-axis moving unit, a Y-axis moving unit is arranged on the Z-axis moving unit, the grinding mechanism is arranged on the Y-axis moving unit, and the grinding mechanism realizes adjustment of the grinding position through three-axis movement of the X-axis moving unit, the Y-axis moving unit and the Z-axis moving unit.

Preferably, a cleaning component is fixed at the end part of the feeding mechanism and is used for polishing and cleaning the grinding surface of the workpiece after grinding.

The invention has the beneficial effects that: the invention comprises a workbench, a cutter fixing mechanism, a grinding mechanism and a feeding mechanism; the workbench is used for bearing the cutter fixing mechanism, the grinding mechanism and the feeding mechanism; the cutter fixing mechanism comprises at least two die holders capable of adjusting swing angles, and the die holders are used for fixing a ground workpiece; the grinding mechanism is arranged on one side of the die holder and is used for grinding a workpiece to be ground, which is fixed on the die holder; the feeding mechanism is used for conveying the ground workpiece to a die holder of the cutter fixing mechanism or taking out the ground workpiece from the die holder of the cutter fixing mechanism; the adjustment of the grinding angle of the ground workpiece is realized by adjusting the swing angle of the die holder; the workpiece to be ground is a cutter; when the grinding device is used, a feeding mechanism grabs and takes out a ground workpiece placed in the material box and conveys the ground workpiece to the die holder of the tool fixing mechanism, the grinding of a tool can be realized through the grinding mechanism, when the grinding angle of the tool is required to be realized, the grinding angle of the tool can be adjusted only by adjusting the swing angle of the die holder, the grinding angle of the tool grinding mechanism is not required to be rotated, the design of the tool grinding mechanism can be simplified, and the difficulty in adjusting the grinding angle of the tool can be reduced; in addition, the cutter fixing mechanism is provided with at least two mold bases, when the feeding mechanism conveys the ground workpiece to one mold base, the rotating table rotates to transfer the mold base with the clamped ground workpiece to the grinding mechanism to realize the cutting edge grinding, the mold base without the clamped ground workpiece is transferred to the feeding position, and the feeding mechanism is waited to convey the ground workpiece to the mold base without the clamped ground workpiece, so that the production efficiency can be effectively improved.

Drawings

FIG. 1 is a front view of the knife sharpener provided by the present invention;

FIG. 2 is a perspective view of the knife sharpener of the present invention;

FIG. 3 is a perspective view of another angle of the knife sharpener of the present invention;

FIG. 4 is a perspective view of a feeding mechanism and a feeding mechanism provided by the present invention;

fig. 5 is a perspective view of the cutter fixing mechanism provided in the present invention (the die holder is not pushed out);

FIG. 6 is a front view of the knife holding mechanism provided in FIG. 5;

FIG. 7 is a perspective view of the cutter-holding mechanism provided in FIG. 5 without the die holder mounting block;

fig. 8 is a perspective view (die holder pushed out state) of the cutter fixing mechanism provided by the present invention;

FIG. 9 is a front view of the knife holding mechanism provided in FIG. 8;

FIG. 10 is a perspective view of the cutter-holding mechanism provided in FIG. 8 without the die holder mounting block;

FIG. 11 is a perspective view of a tool holding mechanism of the multi-die holder design provided by the present invention;

FIG. 12 is an exploded view provided in FIG. 11;

FIG. 13 is a front view (with the die holder not pushed out) as provided in FIG. 11;

FIG. 14 is a front view (die holder pushed out state) provided in FIG. 11;

fig. 15 is a schematic three-dimensional structure view of the grinding mechanism, the X-axis moving unit, the Y-axis moving unit and the Z-axis moving unit provided by the present invention;

FIG. 16 is a schematic perspective view of the present invention from another angle shown in FIG. 15;

fig. 17 is a schematic exploded view of the structure of fig. 15 according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 to 3, the present embodiment provides an automatic feeding knife sharpener capable of adjusting the grinding angle of a knife, which comprises a worktable 100, a knife fixing mechanism 110, a grinding mechanism 120 and a feeding mechanism 140; the worktable 100 is used for carrying the tool fixing mechanism 110, the grinding mechanism 120 and the feeding mechanism 140; the cutter fixing mechanism 110 comprises at least two die holders 2 with adjustable swing angles, and the die holders 2 are used for fixing the ground workpiece 200; the grinding mechanism 120 is arranged on one side of the die holder and is used for grinding a workpiece 200 to be ground, which is fixed on the die holder, and the grinding mechanism 120 is a grinding wheel machine; the feeding mechanism 140 is used for conveying the workpiece 200 to be ground onto the die holder 2 of the tool fixing mechanism 110 or taking out the workpiece after grinding from the die holder 2 of the tool fixing mechanism 110; the grinding angle of the workpiece to be ground 200 is adjusted by adjusting the swing angle of the die holder; the table surface of the workbench 100 is also provided with a feeding mechanism 150, and the feeding mechanism 150 is used for conveying the tray 170 containing the ground workpiece 200 to a feeding position where the feeding mechanism 140 grabs the ground workpiece 200; the workpiece 200 to be ground is a tool; when the tool grinding device is used, the feeding mechanism 140 grabs the ground workpiece 200 placed in the material box and conveys the workpiece to the die holder 2 of the tool fixing mechanism 110, grinding of a tool can be realized through the grinding mechanism 120, when the tool grinding angle needs to be realized, the adjustment of the tool grinding angle can be realized only by adjusting the swing angle of the die holder 2, the grinding angle of the tool grinding mechanism 120 does not need to be rotated, so that the design of the tool grinding mechanism 120 can be simplified, and the realization difficulty of the adjustment of the tool grinding angle can be reduced; in addition, the tool fixing mechanism 110 has at least two die holders 2, when the feeding mechanism 140 conveys the ground workpiece 200 to one die holder 2, the rotating table 1 rotates to transfer the die holder 2 with the ground workpiece 200 clamped thereon to the grinding mechanism 120, so as to realize the edge grinding, and the die holder 2 without clamping the ground workpiece 200 is transferred to the feeding position, and the feeding mechanism 140 waits for conveying the ground workpiece 200 to the die holder 2 without clamping the ground workpiece 200, so that the production efficiency can be effectively improved, and when the edge grinding is finished, the feeding mechanism 140 can also be used for reversing the tool, so that the non-ground tool face can be continuously processed, and in the grinding process of the tool, the full-automatic processing is realized, so that the production efficiency is higher, and the use is safer.

As shown in fig. 5 to 10, the tool fixing mechanism 110 further includes a die holder mounting table 1 and an ejector 3; the die holder 2 is hinged on the front end surface of the die holder mounting table 1; the pushing device 3 is arranged on the workbench, the pushing device 3 can push the die holder 2, so that the adjustment of the swing angle of the die holder 2 relative to the die holder installation table 1 is realized, when the tool grinding device is used, a tool is clamped on the die holder 2, the tool grinding device is combined, the tool can be ground, when the tool grinding angle is needed to be realized, the die holder 2 can adjust the swing angle through the pushing device 3, the grinding angle of the tool grinding device does not need to be rotated, the design of the tool grinding device can be simplified, and the difficulty in achieving the adjustment of the tool grinding angle can be reduced.

Cutter fixed establishment still includes reset element 4, is provided with fixed plate 6 on the rear end face of die holder mount table 1, reset element 4 installs between fixed plate 6 and die holder 2, reset element 4 is the extension spring, has been put the extension spring spliced pole 7 that is used for fixed extension spring respectively on fixed plate 6 and die holder 2, extension spring one end is connected with extension spring spliced pole 7 on the fixed plate 6, and the other end is connected with the extension spring spliced pole 7 at the 2 backs of die holder, and this reset element 4 makes die holder 2 reset towards the opposite direction of the thrustor 3 thrusting directions.

The pushing device 3 comprises a screw rod 31 and a movable push rod 32 penetrating through the die holder mounting table 1, the movable push rod 32 penetrates through the front end surface and the rear end surface of the die holder mounting table 1 and can move back and forth on the die holder mounting table 1, the reset elements 4 are respectively arranged on two sides of the movable push rod 32, one end of the movable push rod 32 penetrates through the front end surface of the die holder mounting table 1 and abuts against the die holder 2, the other end of the movable push rod 32 penetrates through the fixed plate 6 and is pushed by the screw rod 31, and the movable push rod 32 can push the die holder 2 in a moving stroke, so that the adjustment of the swinging angle of the die holder 2 relative to the die holder mounting table 1 is realized.

The pushing device 3 further comprises a mounting bracket 33, a second power source 34 (a motor), a bearing seat 35 for supporting the screw rod 31, a slide rail 36 mounted at the top of the mounting bracket 33, a slide block 37 in sliding fit with the slide rail 36, a nut seat 38 and a first push rod 39, the mounting bracket 33 is mounted on the table 100, the second power source 34 is mounted on the mounting bracket 33, the bearing seat 35 is arranged at the top of the mounting bracket 33, one end of the screw rod 31 penetrates out of the bearing seat 35 and is connected with a first driving wheel, a second driving wheel is arranged at the power output end of the second power source 34, the second power source 34 drives a first driving wheel through the second driving wheel, the first driving wheel drives the screw rod 31 to rotate, the nut seat 38 is mounted on the slide block 37, the nut on the screw rod 31 is mounted in the nut seat 38, and the other end of the screw rod 31 penetrates out of the nut seat 38; one end of the first push rod 39 is mounted on one side surface of the nut seat 38, the other end of the first push rod 39 is used for pushing the movable push rod 32, when the lead screw 31 rotates, the nut on the lead screw 31 drives the nut seat 38 to advance or retract, so that the first push rod 39 is driven to be pushed out or retracted, a clearance hole for the lead screw 31 to penetrate through is formed in the first push rod 39, the lead screw 31 is prevented from interfering with the first push rod 39 when the lead screw 31 controls the first push rod 39 to retract, the structure is simple, the precision of the lead screw 31 is high, and the high-precision control of the grinding angle of the die holder 2 is conveniently completed; the first driving wheel and the second driving wheel are synchronous wheels, the first driving wheel and the second driving wheel are connected through a synchronous belt (not shown in the figure), and the two synchronous wheels are used, so that the structure is compact; of course, the first driving wheel and the second driving wheel can also be chain wheels, and the first driving wheel and the second driving wheel can be connected through a chain; or the first transmission wheel and the second transmission wheel are gears, and transmission is realized through meshing between the two gears.

In order to make the movable push rod 32 move more smoothly, a guide member, such as a linear bearing, which is matched with the movable push rod 32, may be further disposed on the die holder mounting table 1, so as to reduce the friction force applied to the movable push rod 32, and make the movable push rod 32 slide more smoothly.

As shown in fig. 11 to 14, the tool fixing mechanism further includes a first power source 8 (a motor), a gear and an internal gear type turntable bearing 9 mounted on a power output shaft of the first power source 8, a vertical plate 1001 perpendicular to the table 100 is disposed on the table 100, and the die holder mounting table 1 is rotatably disposed on the vertical plate; the die holder mounting table 1 is fixedly mounted on a turntable bearing 9, the turntable bearing 9 is fixedly mounted on the front end face of the vertical plate, the first power source 8 is fixedly mounted on the rear end face of the vertical plate, a gear on a power output shaft of the first power source 8 is meshed with the turntable bearing 9, the first power source 8 drives the turntable bearing 9 to rotate through the gear, the die holder mounting table 1 rotates along with the turntable bearing 9, the structure is simple, power is sufficient, driving is stable, the rotation angle is convenient to adjust, and the internal tooth type turntable bearing 9 is adopted, so that the structure is compact, and the mounting space can be saved.

The die holder 2 has 2 at least and distributes along the same rotatory circumference of die holder mount table 1, and the design of a plurality of grinding stations makes the cutter tool changing become convenient, simple, and machining efficiency is high, and when changing the cutter, the cutter can keep away from cutter grinding mechanism moreover, makes the cutter change safer.

The number of the movable push rods 32 is equal to that of the die holders 2, and the movable push rods are arranged corresponding to the die holders 2, so that the swing angles of the die holders 2 can be adjusted by only using one screw rod 31, and the die holders are simple in structure and practical.

The cutter is fixed on the die holder 2, the die holder 2 can be a magnetic table, the cutter is fixed in a magnetic suction mode, and the fixing is simple and convenient to operate; the die holder 2 is characterized in that mounting blocks 5 are respectively arranged on two sides of the die holder 2, the die holder 2 is connected with the mounting blocks 5 through a rotating shaft, the die holder 2 can rotate around the rotating shaft, the die holder 2 is fixed on one end face of the die holder mounting table 1 through the mounting blocks 5, and the pushing device 3 achieves adjustment of the swing angle of the die holder 2 through pushing.

In order to prevent the die holder 2 from directly colliding with the die holder mounting table 1 when the die holder 2 is reset, an anti-collision block can be arranged between the die holder 2 and the die holder mounting table 1, the anti-collision block can be fixed on the die holder mounting table 1 or the die holder 2, the embodiment adopts a rigid limiting mode, of course, a flexible limiting mode can also be adopted, specifically, a clamping groove is arranged on a movable push rod 32, a clamping piece (not shown) is arranged in the clamping groove, a compression spring 30 is arranged between the clamping piece and a fixed plate 6, when the lead screw 31 withdraws the thrust force, the movable push rod 32 unloads the thrust force pushing out of the die holder 2, the stretched tension spring resets, at the moment, the compression spring 30 is compressed under the force, the die holder 2 is prevented from colliding with the die holder mounting table 1, the mechanism is simple, the safety is high, the automatic recovery of the die holder 2 can be realized by using the tension spring, the screw rod 31 is not contacted with the movable push rod 32, so that the screw rod 31 can be prevented from colliding with the movable push rod 32 when the die holder mounting table 1 rotates to replace a station.

As shown in fig. 15 to 17, the grinding mechanism 120 is movable on the table 100 in the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively; the grinding mechanism 120 is arranged on the Y-axis moving unit 3A, the grinding mechanism 120 realizes adjustment of a grinding position through three-axis movement of the X-axis moving unit 1A, Y shaft moving unit 3A and the Z-axis moving unit 2A, and three-axis linkage is realized, so that adjustment of the grinding position of the grinding mechanism 120 becomes simple and flexible.

The X-axis moving unit 1A includes a first guide rail 11A, a first slider 12A, a first driving device 13A, and a first supporting plate 14A, the first guide rail 11A is mounted on the workbench 100, the first slider 12A is mounted at the bottom of the first supporting plate 14A, the first slider 12A is movable on the first guide rail 11A, the first driving device 13A is mounted on the workbench 100, the first driving device 13A is capable of pushing the first supporting plate 14A to move on the first guide rail 11A along the X-axis direction, the first driving device 13A includes a motor, 2 synchronizing wheels, and a lead screw, 1 synchronizing wheel is mounted on a power output shaft of the motor, one end of the lead screw is also mounted with one synchronizing wheel, the two synchronizing wheels are connected by a synchronous belt, when the motor is started, the screw rod is driven to rotate, and the nut on the screw rod pushes the first supporting plate 14A to move.

The Z-axis moving unit 2A includes a plurality of screws 21A, a driving nut 22A, a third power source 23A and a second supporting plate 24A, the screws 21A are vertically distributed on the first supporting plate 14A at intervals in the circumferential direction, one end of each screw 21A penetrates through the first supporting plate 14A and is provided with a third driving wheel 25A, the driving nut 22A is fixedly connected with the second supporting plate 24A, the third power source 23A is vertically arranged on the first supporting plate 14A, a fourth driving wheel 26A is arranged on a power output shaft of the third power source 23A, the fourth driving wheel 26A is used for driving the third driving wheel 25A to rotate, so that the third power source 23A can push the second supporting plate 24A to move along the Z-axis direction, the third power source 23A is a motor, and the third driving wheel 25A and the fourth driving wheel 26A are synchronizing wheels, the fourth driving wheel 26A is a driving wheel, the fourth driving wheel 26A is connected with the third driving wheel 25A through a synchronous belt, when the third power source 23A is started, the plurality of screws 21A are driven to rotate at the same time, and the driving nut 22A pushes the second supporting plate 24A to move along the Z-axis direction.

The Y-axis moving unit 3A includes a second guide rail 31A, a second slider 32A engaged with the second guide rail 31A, and a second driving device 33A, the second guide rail 31A is mounted on the second supporting plate 24A, the second slider 32A is mounted on the bottom of the grinding mechanism 120, the second slider 32A is movable on the second guide rail 31A, the second driving means 33A is mounted on the second blade 24A, the second driving device 33A can push the grinding mechanism 120 to move on the second guide rail 31A along the Y-axis direction, the second driving device 33A comprises a motor and a screw rod, a power output shaft of the motor is connected with one end of the screw rod through a coupler, the motor directly drives the screw rod to rotate, a nut on the screw rod is fixedly arranged with the grinding mechanism 120, when the screw rod rotates, the nut pushing grinding mechanism 120 moves on the second guide rail 31A in the Y-axis direction.

As shown in fig. 4, the feeding mechanism 150 includes a first cylinder, a third guide rail, a third slider matched with the third guide rail, a ball track and a driving plate disposed at two sides of the third guide rail, the first cylinder, the third guide rail and the ball track are mounted on the table top of the worktable 100, the third slider is locked at the bottom of the driving plate by a screw, the head of the piston rod of the first cylinder is connected with the driving plate by a connecting block, the first cylinder is used for pushing the driving plate to move on the third guide rail along the X-axis direction, the material tray 170 containing the ground workpiece 200 is supported on the ball track, a plurality of non-return assemblies for pushing the material tray 170 to advance are mounted on the driving plate at regular intervals along the X-axis direction, when the first cylinder pushes the driving plate, the non-return assemblies push the material tray 170 to move along the X-axis direction, and the distance between 2 non-return assemblies adjacent to the X-axis direction is the stroke of the, a plurality of positioning devices for positioning the material tray 170 are also arranged on the workbench, the positioning devices are positioned at one side of the check assembly, the positioning device comprises a positioning rod extending out of the table surface of the workbench and a driving cylinder for driving the positioning rod to move in a telescopic way along the Z-axis direction, when the tray 170 is conveyed to the proper position, the positioning device acts, the positioning rod extends out of the positioning tray 170, so that the stopping component can not drive the tray 170 conveyed to the proper position when the first cylinder is reset, when feeding a new tray 170, the positioning rod is reset, the tray 170 which is fed in place is loosened, smooth and stable conveying of the tray 170 is ensured, the action of the positioning device can be controlled by a PLC written with a control program, the triggering condition can be that an optical fiber sensor is arranged at the corresponding feeding position, and when the tray 170 is fed to the position, the optical fiber sensor triggers the sensing condition, and the PLC controls the action of the positioning device; or the magnetic switch arranged on the first cylinder is used as a sensor for generating the triggering condition, namely when the piston rod of the cylinder is pushed out in place, the material tray 170 is conveyed to the material conveying position by default, at the moment, the position outlet magnetic switch on the first cylinder is lightened to generate a signal that the material tray 170 is in place, and the PLC is driven to control the positioning device to act; the tray 170 may be manually placed on the feeding mechanism 150, or the feeding mechanism 150 may be connected to an external conveyor belt.

The feeding mechanism 140 includes a first conveying group 4A, a lifting group 5A and a second conveying group 6A, the first conveying group 4A is installed on the table surface of the workbench 100, the lifting group 5A is installed on a support plate on the back surface of the vertical plate 1001 of the workbench 100, the second conveying group 6A is installed on a support plate on the top of the vertical plate of the workbench, the feeding mechanism 150 is located right below the first conveying group 4A, the first conveying group 4A grabs and conveys the cutter with grinding on the material tray 170 conveyed by the feeding mechanism 150 to the position to the lifting group 5A, the lifting group 5A conveys the cutter to the material taking position of the second conveying group 6A, so that the second conveying group 6A can conveniently grab the cutter, and the second conveying group 6A conveys the cutter to the mold base 2 of the cutter fixing mechanism 110; of course, the mounting height of the feeding mechanism 150 may be adjusted to omit the lifting group 5A, directly butt-joint the first conveyance group 4A and the second conveyance group 6A, or extend the conveyance stroke of the second conveyance group 6A, thereby saving the first conveyance group 4A, simplifying the structure, and reducing the cost.

The first conveying group 4A includes a supporting foot 41A, a first Y-axis conveying assembly 42A and a first Z-axis conveying assembly 43A, the supporting foot 41A is installed on the workbench 100, the first Y-axis conveying assembly 42A is installed on the supporting foot 41A, the first Z-axis conveying assembly 43A is installed on the first Y-axis conveying assembly 42A, when the tray 170 is conveyed to the proper position, the first Y-axis conveying assembly 42A adjusts the position of the first Z-axis conveying assembly 43A to enable the first Z-axis conveying assembly 43A to conveniently grasp the tool, the judgment that the tray 170 is positioned refers to the above, and description will not be repeated here, the first Y-axis conveying assembly 42A is a conveying module including a motor, a lead screw and a slide rail slide block, the first Z-axis assembly 43A is installed on the slide block of the first Y-axis conveying assembly 42A through conveying screws, and nuts on the lead screw are connected with the first Z-axis conveying assembly 43A, the motor passes through the shaft coupling with the lead screw and directly drives the lead screw rotation and makes the nut drive first Z axle and send subassembly 43A to remove, and first Y axle is sent subassembly 42A to be used for adjusting first Z axle and is sent the position that subassembly 43A snatched the cutter, first Z axle is sent subassembly 43A including sending the cylinder and installing the electro-magnet at the piston rod tip of sending the cylinder, the electro-magnet is used for absorbing the cutter, when needs get the cutter, first Y axle is sent subassembly 42A to send first Z axle to send subassembly 43A to send and get the cutter position, then first Z axle is sent subassembly 43A's the cylinder of sending and is stretched out and make the electro-magnet can absorb the cutter.

The lifting group 5A comprises a power assembly 51A, a fourth guide rail 52A, a fourth sliding block 53A matched with the fourth guide rail 52A and a placing seat 54A used for placing a cutter, the fourth guide rail 52A is installed on a supporting plate on the back of a vertical plate 1001 of the workbench 100, the placing seat 54A is locked on the fourth sliding block 53A through a screw, the power assembly 51A is connected with the placing seat 54A and used for driving the placing seat 54A to move back and forth along the Z-axis direction, the power assembly 51A comprises a motor, 2 synchronizing wheels and a synchronous belt, the motor is installed on the supporting plate on the top of the vertical plate 1001 of the workbench 100, one synchronizing wheel is installed on a rotating shaft of the motor, the other synchronizing wheel is installed on the table top of the workbench through a connecting plate and a connecting shaft, the 2 synchronizing wheels are connected through the synchronous belt, and the motor drives the synchronous belt to rotate, the placing seat 54A is fixed with a part of the synchronous belt through a fixed block or a screw, and the synchronous belt drives the placing seat 54A to move back and forth along the Z-axis direction; in order to detect whether the tool is in place, a proximity switch or a fiber optic sensor for detecting metal may be mounted on the placement base 54A.

The supporting plate on the top of the vertical plate 1001 of the working table 100 is provided with the X-axis moving assembly 160, and the second conveying group 6A is arranged on the X-axis moving assembly 160, so that the positions of the knife taking and placing of the second conveying group 6A can be conveniently adjusted, the adjustment of the positions of the knife taking and placing of the second conveying group 6A becomes simpler, more convenient and more flexible, the X-axis moving assembly 160 includes a support 1601 and an X-axis moving module 1602 mounted on the support 1601, the X-axis moving module 1602 is a moving module including a motor, a lead screw and a slide rail, the second conveying group 6A is installed on a sliding block of the X-axis moving module 1602 through a screw, a nut on the screw rod is connected with the second conveying group 6A, the motor drives the screw rod to rotate so that the nut drives the second conveying group 6A to move, and the motor can drive the screw rod to rotate through a synchronous wheel and a synchronous belt; of course, the second conveying group 6A may be directly fixed to the support plate on the top of the vertical plate of the table.

The second conveying group 6A includes a base 61A, a second Y-axis conveying module 62A, and a second Z-axis conveying module 63A, the base 61A is fixedly mounted on a slide block of the X-axis moving module 1602 by screws, the second Y-axis conveying module 62A is mounted on the base 61A, the second Z-axis conveying module 63A is mounted on the second Y-axis conveying module 62A, the second Y-axis conveying module 62A is used for adjusting the positions of the knife taking and placing of the second Z-axis conveying module 63A, the second Y-axis conveying module 62A is a conveying module including a motor, a lead screw, and a slide block, the second Z-axis conveying module 63A is mounted on the slide block of the second Y-axis conveying module 62A by a connecting plate, the connecting plate 60A and the slide block of the second Y-axis conveying module 62A are locked by screws, nuts on the lead screw are connected to the connecting plate by a nut connecting block, the motor drives the screw rod to rotate so that the nut drives the connecting plate to move, thereby driving the second Z-axis conveying assembly 63A to move, the motor can drive the screw rod to rotate through a synchronous wheel and a synchronous belt, the second Z-axis conveying assembly 63A comprises an installation seat 631A, a Z-axis moving module 632A installed on the installation seat 631A and a cutter taking assembly 633A located at the end of the installation seat 631A and used for taking a cutter, the Z-axis moving module 632A comprises a motor, a screw rod and a sliding rail sliding block, the sliding rail is installed on the surface of the installation seat 631A through a screw, the installation seat 631A is fixedly installed on the connecting plate 60A through the sliding block matched with the sliding rail, the screw rod is arranged inside the installation seat 631A, the nut on the screw rod is fixedly connected with the connecting plate 60A through a nut seat, the motor is installed at the top of the installation seat 631A and connected with the screw rod through a coupler, and, thereby driving the knife-taking assembly 633A to move.

The knife taking assembly 633A can rotate around the Z axis, the knife taking assembly 633A comprises a rotating motor, a connecting seat and an electromagnet, the rotating motor is installed in the installation seat 631A and the rotating shaft thereof penetrates through the end of the installation seat 631A to be fixedly connected with the connecting seat, the number of the electromagnets is 2, the electromagnets are circumferentially fixed on the connecting seat at intervals, the included angle between the 2 electromagnets is 180 degrees, when the tool is changed, one electromagnet is used for absorbing the tool to be ground, the other electromagnet takes off the tool which is ground on the die holder, the rotating motor drives the connecting seat to rotate, so that the positions of the tool to be ground and the tool which is ground are exchanged, then the second Y-axis conveying assembly 62A and the second Z-axis conveying assembly 63A adjust the position of the knife taking assembly 633A in a linkage manner, so that the knife taking assembly 633A can convey the tool to be ground to the die holder, and then the tool to be ground is ground; a cutter placing seat is arranged on one side of the second conveying group 6A, and the second conveying group 6A can temporarily place the cutter which is ground on two sides on the cutter placing seat to wait for manual recovery; the cutter for finishing one-side grinding can also be temporarily placed on the cutter placing seat, then the cutter assembly 633A is taken to grab the cutter again, then the cutter is reversed and conveyed back to the die seat again, so that the surface to be ground of the cutter is opposite to the grinding mechanism, the cutter grinder can continuously process the non-ground cutter surface, the two-side grinding of the cutter is realized, and in the grinding process of the cutter, the full-automatic processing is realized, so that the production efficiency is higher, and the use is safer; for the purpose of processing safety, a sensor for detecting whether a tool is already present on the tool holder may be provided on the tool holder, the sensor being a proximity switch or an optical fiber sensor for detecting metal.

The end part of the second conveying group 6A is also fixedly provided with a cleaning component 7A for polishing and cleaning the grinding surface of the cutter, when the cutter is ground, the cutter component 633A takes off the cutter on the die holder, the cleaning component 7A extends out of the grinding surface of the cleaning and polishing cutter, the cleaning component 7A comprises a mounting plate, an ejection cylinder, guide rods arranged at two sides of the ejection cylinder, a linear bearing matched with the guide rods and a brush component, the mounting plate is fixed at the end part of the second conveying group 6A, the ejection cylinder and the linear bearing are fixed on the mounting plate, the brush component is fixedly connected with the end part of a piston cylinder of the ejection cylinder, one end of the guide rod penetrates through the linear bearing and is fixedly connected with the brush component, when the ejection cylinder pushes out the brush component, the guide rods can prevent the brush component from rotating, so as to ensure that the brush component can thoroughly polish the grinding surface of the cutter, And (4) cleaning.

Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protection scope of the present invention.

Claims

1. The utility model provides an automatic feeding sharpedge grinding machine of adjustable cutter grinding angle which characterized in that: comprises a workbench (100), a cutter fixing mechanism (110), a grinding mechanism (120) and a feeding mechanism (140);

the workbench (100) is used for bearing the cutter fixing mechanism (110), the grinding mechanism (120) and the feeding mechanism (140);

the cutter fixing mechanism (110) comprises at least two die holders (2) with adjustable swing angles, and the die holders (2) are used for fixing a ground workpiece (200);

the grinding mechanism (120) is arranged on one side of the die holder (2) and is used for grinding a workpiece (200) to be ground, which is fixed on the die holder;

the feeding mechanism (140) is used for conveying the ground workpiece (200) to the die holder (2) of the tool fixing mechanism (110) or taking out the ground workpiece from the die holder (2) of the tool fixing mechanism (110);

the grinding angle of the workpiece (200) to be ground is adjusted by adjusting the swing angle of the die holder (2).

2. The automatic feeding knife sharpener capable of adjusting the grinding angle of the knife tool according to claim 1, characterized in that: the grinding machine further comprises a feeding mechanism (150), wherein the feeding mechanism (150) is installed on the table top of the workbench (100) and used for conveying the material tray (170) containing the ground workpiece (200) to a feeding position where the feeding mechanism (140) grabs the ground workpiece (200).

3. The tool sharpener of claim 1, wherein: the cutter fixing mechanism (110) further comprises a die holder mounting table (1) and a pushing device (3);

the die holder (2) is rotatably arranged on the front end surface of the die holder mounting table (1);

the pushing device (3) is arranged on the workbench, and the pushing device (3) can push the die holder (2), so that the adjustment of the swing angle of the die holder (2) relative to the die holder mounting table (1) is realized.

4. The tool holding mechanism for adjusting a grinding angle of a tool according to claim 3, wherein: the cutter fixing mechanism (110) further comprises a reset element (4), the reset element (4) is installed on the die holder installation table (1) and the die holder (2), and the reset element (4) enables the die holder (2) to reset towards the direction opposite to the pushing direction of the pushing device (3).

5. The tool holding mechanism for adjusting a grinding angle of a tool according to claim 3, wherein: the pushing device (3) comprises a screw rod (31) and a movable push rod (32) penetrating through the die holder mounting table (1), the movable push rod (32) penetrates through the front end face and the rear end face of the die holder mounting table (1) and can move back and forth on the die holder mounting table (1), one end of the movable push rod (32) abuts against the die holder (2), the other end of the movable push rod is pushed by the screw rod (31), and the movable push rod (32) can push the die holder (2) in a moving stroke, so that the adjustment of the swinging angle of the die holder (2) relative to the die holder mounting table (1) is realized.

6. The tool holding mechanism for adjusting a grinding angle of a tool according to claim 5, wherein: the die holder mounting table (1) is rotatable; at least 2 die holders (2) are distributed along the same rotating circumference of the die holder mounting table (1); the number of the movable push rods (32) is equal to that of the die holders (2), and the movable push rods are arranged corresponding to the die holders (2).

7. The automatic feeding knife sharpener capable of adjusting the grinding angle of the knife tool according to claim 1, characterized in that: the grinding mechanism (120) can move on the workbench (100) along the X-axis direction, the Y-axis direction and the Z-axis direction respectively.

8. The automatic feeding knife sharpener of claim 7 with adjustable knife grinding angle, characterized in that: be provided with X axle mobile unit (1A) on workstation (100), be provided with Z axle mobile unit (2A) on X axle mobile unit (1A), be provided with Y axle mobile unit (3A) on Z axle mobile unit (2A), grinding mechanism (120) set up on Y axle mobile unit (3A), grinding mechanism (120) realize the adjustment of grinding position through X axle mobile unit (1A), Y axle mobile unit (3A) and Z axle mobile unit (2A) triaxial removal.

9. The automatic feeding knife sharpener capable of adjusting the grinding angle of the knife tool according to claim 1, characterized in that: and a cleaning component (7A) is fixed at the end part of the feeding mechanism (140), and the cleaning component (7A) is used for polishing and cleaning the grinding surface of the workpiece after grinding.