CN201702619U

CN201702619U - Knife sharpener

Info

Publication number: CN201702619U
Application number: CN201020230254XU
Authority: CN
Inventors: 邵岗
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-21
Filing date: 2010-06-21
Publication date: 2011-01-12
Anticipated expiration: 2020-06-21

Abstract

The utility model discloses a knife sharpener, which comprises a framework. A knife sharpening wheel is fixedly arranged at one end of the framework, the framework is provided with a base, and the base is connected with a first driving device, can slide along the framework in a reciprocating manner and is provided with a knife sharpening device. The knife sharpener is characterized in that a knife sharpening guide track is arranged on the lower portion of the knife sharpening device. By aid of the technical scheme, knife sharpener can sharpen knife edges in various different radians and shapes, and knife edges sharpened are higher in quality and standard in shape without manual correction, thereby reducing labor intensity and increasing labor efficiency.

Description

A kind of knife sharpener

Technical field

The utility model relates to a kind of sharpening machinery, specifically relates to a kind of knife sharpener.

Background technology

In the production process of cutter, tool sharpening is a wherein crucial step.In the life, the pattern of cutter is various, and the shape of same blade is also ever-changing, and this has brought big difficulty for undoubtedly the processing of cutter.Traditional knife sharpener has following shortcoming:

(1), the blade that grinds is single, narrow application range;

(2), also need manually to polish inefficiency after the machine polishing;

(3), the shape of blade is nonstandard, service life is short.

The utility model content

Problem to be solved in the utility model provides a kind of multiple shape blade of polishing, polishing effect knife sharpener preferably.

For addressing the above problem, the technical scheme that the utility model adopted is:

A kind of knife sharpener comprises frame, and an end of frame is set with grinding wheel, frame is provided with base, and base is connected with first drive unit, and base can reciprocatingly slide along frame, described base is provided with knife sharpening device, it is characterized in that: described knife sharpening device bottom is provided with the sharpening guide rail.

Below be the further improved technical scheme of the utility model:

Described sharpening guide rail is an arc-shaped guide rail.

Described sharpening guide rail and knife sharpening device removably connect.

Described knife sharpening device comprises tool rest, cutter holder and second drive unit, and cutter holder can move back and forth along the sharpening guide rail.

Described cutter holder comprises fixed head, and fixed head is provided with can be along the road wheel of sharpening guide rail walking.

Described cutter holder also comprises movable plate and the adjustable plate that is provided with between fixed head and the tool rest, and the lower end of described movable plate and adjustable plate is hinged, ties with the upper end snail of adjustable plate to connect; Adjustable plate is fixedlyed connected with fixed head.

Described fixed head is provided with height limiting plate, magnet and clamping piece near a side of grinding wheel.

Described second drive unit is second hydraulic cylinder, and second hydraulic cylinder is fixed on the tool rest, and the piston rod of second hydraulic cylinder is connected with cutter holder.

Described first drive unit is first hydraulic cylinder, be provided with the adjusting device of regulating distance between base and the grinding wheel between the piston rod of first hydraulic cylinder and the base, described adjusting device comprises nut, leading screw, hand wheel shaft and handwheel, described nut is connected with the piston rod of first hydraulic cylinder, the bottom of nut is fixed with along the guide rail of frame walking, nut is connected with leading screw, is in transmission connection between leading screw and the hand wheel shaft.

Described base is provided with the vibrating device that is in transmission connection with knife sharpening device, and described vibrating device comprises shock absorber, connecting rod and the eccentric drive mechanism that supports knife sharpening device.

In the technique scheme, because the blade of cutter generally has radian, the utility model adopts arc sharpening guide rail, can be when the cutter of the different radian blades of mill, only need to select the corresponding sharpening guide rail of blade to get final product with institute's knife milling tool, make sharpening convenient, reduce the polishing cost, it is convenient according to the different different radian sharpening guide rails of radian blade selection to removably connect.

Type of drive is selected hydraulic-driven, can guarantee to operate steadily, and does not have noise simultaneously, has improved working environment.

Adjusting device can be finely tuned base, can effectively regulate the precision that contacts with grinding wheel, avoids damaging cutter, improves yield rate.

Shock absorber, connecting rod and eccentric drive mechanism can guarantee that knife sharpening device is in vibrational state in the sharpening process, and this kind structure makes the cutter up-down vibration, therefore can grind the blade with certain width.

When whetting a knife, the blade that has not only has radian and also has certain inclination angle, at this moment needs the inclination angle of satisfying blade by the angle of adjusting adjustable plate, need not manually to correct again.

The utility model passes through to adopt technique scheme, the blade of the various different radian shapes of not only can polishing, and also the blade quality of polishing is higher, and the shape criteria of blade need not artificial rectification, has reduced labour intensity, has improved efficiency.

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

Description of drawings

Accompanying drawing 1 is the structural representation of knife sharpener in the utility model;

Accompanying drawing 2 be in the accompanying drawing 1 A-A to structural representation;

Accompanying drawing 3 be in the accompanying drawing 2 B-B to structural representation;

Accompanying drawing 4 is the structural representation of first hydraulic cylinder and leading screw and nut;

Accompanying drawing 5 is the structural representation of knife sharpening device.

Among the figure: the 1-frame; The 2-base; The 3-grinding wheel; The 4-tool rest; 5-sharpening guide rail; The 6-road wheel; 7-height limiting plate; The 8-fixed head; The 9-shock absorber; 10-second hydraulic cylinder; 11,17-piston rod; The 12-housing; The 13-handwheel; The 14-leading screw; The 15-nut; 16-first hydraulic cylinder; The 18-hand wheel shaft; The 19-movable plate; The 20-protective cover; The 21-cutter; 22,29-guide rail; The 23-gear wheel; The 24-pinion; The 25-eccentric wheel; The 26-connecting rod; The 27-support bar; 28-first bevel gear; 30-second bevel gear; The 31-clamping piece; The 32-adjusting nut; The 33-adjustable plate; The 34-pad; The 35-bearing block; 36-magnet.

The specific embodiment

Embodiment: as shown in Figure 1 and Figure 4, a kind of knife sharpener, comprise frame 1, one end of frame 1 is set with grinding wheel 3, frame 1 is provided with base 2, base 2 is connected with first drive unit, described base 2 is provided with knife sharpening device, and frame 1 is provided with two guide rails 22, and guide rail 22 is positioned at the both sides of frame 1, the T-shaped structure in the cross section of one of them guide rail 22, the cross section of another guide rail 22 structure triangular in shape, the guide rail degree of accuracy of this form is higher, and guide rail 22 is provided with base 2, base 2 can reciprocatingly slide on frame 1 along guide rail 22, and described knife sharpening device bottom is provided with sharpening guide rail 5.

Described first drive unit is that first hydraulic cylinder, 16, the first hydraulic cylinders 16 are positioned at an end of frame 1, and is positioned at the position of center line place of frame 1.

Be provided with the adjusting device of regulating distance between base 2 and the grinding wheel 3 between the piston rod 17 of first hydraulic cylinder 16 and the base 2, adjusting device comprises nut 15, leading screw 14, handwheel 13 and hand wheel shaft 18, hand wheel shaft 18 is positioned at a side of base 2, and handwheel 13 is positioned at outside the base 2.

Nut 15 is connected with the piston rod 17 of first hydraulic cylinder 16, the bottom of nut 15 is fixed with along the guide rail 29 of frame 1 walking, it is the mode of tubular structure that the utility model adopts piston rod 17, can certainly adopt other to realize that leading screw 14 moves the mode of purpose along nut 15.

Nut 15 is connected with leading screw 14, one end of leading screw 14 is threaded with nut 15, the other end of leading screw 14 is connected with bearing block 35,35 pairs of leading screws 14 of bearing block play position-limiting action, that is to say that leading screw 14 can rotate along bearing block 35, but can not move left and right, this technology is easy to realize to those skilled in the art, as leading screw 14 being positioned at the part reducing of bearing block 35, bearing block 35 is fixedlyed connected with the bottom surface of base 2.

Bevel Gear Transmission is connected between leading screw 14 and the hand wheel shaft 18, and the end that leading screw 14 passes bearing block 35 is provided with first bevel gear 28, and the end of hand wheel shaft 18 is provided with second bevel gear, 30, the second bevel gears 30 and 28 engagements of first bevel gear.

During duty, first hydraulic cylinder 16 promotes nut 15, and nut 15 promotes leading screw 14, this moment, leading screw 14 did not rotate, and leading screw 14 impeller-hub bearings 35 are because bearing block 35 is fixedlyed connected with base 2, so base 2 is promoted by first hydraulic cylinder 16, base 2 slides before and after guide rail 22 is on frame 1.

When first hydraulic cylinder 16 promoted nut 15 arrival certain positions, the piston rod 17 of first hydraulic cylinder 16 was slack, and turn this moment leading screw 14, leading screw 14 cooperate promotion base 2 to move with nut 15, realize the fine setting to base 2.

As shown in Figure 2, described sharpening guide rail 5 is an arc-shaped guide rail, and described sharpening guide rail 5 removably connects with knife sharpening device.

The radian of sharpening guide rail 5 is corresponding with the blade radian of cutter, and promptly according to the radian of blade, correspondence is selected the sharpening guide rail 5 of corresponding radian for use.

Described knife sharpening device comprises tool rest 4, cutter holder, second drive unit, and cutter holder moves back and forth along sharpening guide rail 5.

Described cutter holder comprises fixed head 8, and fixed head 8 is provided with can be along the road wheel 6 of sharpening guide rail 5 walkings.

Described cutter holder also comprises movable plate 19 and the adjustable plate 33 that is provided with between fixed head 8 and the tool rest 4, and described movable plate 19 is hinged with the lower end of adjustable plate 33, fixedlys connected by regulating bolt 32 with the upper end of adjustable plate 33; Adjustable plate 33 is fixedlyed connected with fixed head 8, and this mode can realize the fine setting of angle.

Described movable plate 19 is positioned at tool rest 4 end near grinding wheels 3, and the upper end of tool rest 4 is provided with guide rail, and guide rail is horizontally disposed with, and the upper end of movable plate 19 is provided with the chute that matches with guide rail on the tool rest 4.

Fixed head 8 is provided with height limiting plate 7, magnet 36 and clamping piece 31 near a side of grinding wheel 3.

The quantity of height limiting plate 7 is two, fixedlys connected with fixed head 8 by bolt respectively.Height limiting plate 7 is provided with chute, is provided with bolt in the chute, and height limiting plate 7 is adjusted height by chute and bolt.Be inlaid with the magnet 36 of two circles in the fixed head 8, magnet 36 can tightly be adsorbed on cutter 21 on the fixed head 8.

In order further to step up cutter 21, also be provided with the clamping piece 31 that compresses cutter 21 on the fixed head 8, clamping piece 31 is positioned at the centres of two height limiting plates 7, and the bottom of clamping piece 31 and fixed head 8 are connected by Spring Card.Load and unload cutter 21 for convenience, end at clamping piece 31 is provided with the travel switch of opening clamping piece 31, promptly when fixed head 8 is positioned at initial position, travel switch contacts with tool rest 4, clamping piece 31 opens, cutter 21 is placed on the height limiting plate 7, when in a single day fixed head 8 leaves initial position, travel switch no longer contacts with tool rest 4, and clamping piece 31 just steps up cutter 21 automatically, after cutter 21 polishings are finished, when fixed head 8 is got back to initial position, travel switch is run into tool rest 4, and clamping piece 31 opens once more, takes out cutter 21.

Second drive unit is that second hydraulic cylinder, 10, the second hydraulic cylinders 10 are fixed on the tool rest 4, and the piston rod 11 of second hydraulic cylinder 10 is connected with the centre position of movable plate 19, drives the guide rail reciprocating motion of movable plate 19 along tool rest 4.

As shown in Figure 3, described base 2 is provided with the vibrating device that is in transmission connection with knife sharpening device, and described vibrating device comprises the shock absorber 9 that supports knife sharpening device, connecting rod 26 and the eccentric drive mechanism that makes the knife sharpening device vibration.

Described shock absorber 9 is positioned at the both sides of knife sharpening device, fixedly connected with knife sharpening device in the top of shock absorber 9, fixedly connected with base 2 in the bottom, shock absorber 9 quantity are two, lay respectively at the both sides of base 2, two shock absorbers 9 are provided with tool rest 4, between the upper surface of the bottom surface of tool rest 4 and base 2 the vibration gap are arranged.

Described connecting rod 26 1 ends are fixedlyed connected with knife sharpening device, and the other end and eccentric drive mechanism flexibly connect, and the centre position of connecting rod 26 is hinged with support bar 27, fixedly connected with base 2 in the bottom of support bar 27.

Eccentric drive mechanism comprise eccentric wheel 25, with the coaxial gear wheel 23 of eccentric wheel, with the pinion 24 of gear wheel 23 engagements, pinion 24 is connected with motor.Wherein, eccentric wheel 25 is provided with shift fork, the end that connecting rod 26 is connected with eccentric wheel 25 is provided with the groove of opening, shift fork matches with the groove of connecting rod 26, when eccentric wheel 25 rotates, shift fork is just stirred connecting rod 25, and connecting rod 25 just drives tool rest 4 up-down vibration, also is provided with housing 12 in the outside of whole connecting rod 26 and eccentric drive mechanism.

Described grinding wheel 3 is provided with protective cover 20, and protective cover 20 can prevent that the staff from running into the grinding wheel 3 of rotation at a high speed and security incident takes place.

As shown in Figure 5, adjustable plate 33 rotates, and forms angle with movable plate 19, inserts pad 34 in angle, and by regulating bolt 32 that adjustable plate 33 is fixing, fixed head 8 just has certain inclination angle like this, so that the blade that polishing has respective angles.

The course of work:

According to the blade radian of the cutter that will grind, select the sharpening guide rail 5 of corresponding radian, by being bolted on the tool rest 4;

Again the cutter 21 that will grind is fixed on the fixed head 8, regulates suitably height by height limiting plate 7, with bolting height limiting plate 7;

Open grinding wheel 3, simultaneously, first hydraulic cylinder 16 is started working, and promotes base 2 and moves to grinding wheel 3 places, and when cutter 21 during near grinding wheel 3, first hydraulic cylinder 16 quits work;

Rotate handwheel 13, base 2 further moves forward, and contacts with grinding wheel 3 until cutter 21;

Vibrating bin 12 is started working, and drives tool rest 4 up-down vibration, and movable plate hydraulic cylinder 10 is started working, and promotes fixed head 8 and moves along sharpening guide rail 5, and after fixed head 8 left initial position, clamping piece 31 just stepped up cutter 21, and cutter 21 begins to polish;

After polishing was finished, fixed head 8 was got back to initial position, and clamping piece 31 opens, and second hydraulic cylinder 10 quits work;

First hydraulic cylinder 16 is started working, and base 2 is pulled away from grinding wheel 3;

First hydraulic cylinder 16 quits work, and by the staff cutter 21 is taken away, or is changed the buffed surface of cutter 21, repeats above-mentioned process.

Claims

1. knife sharpener, comprise frame (1), one end of frame (1) is set with grinding wheel (3), frame (1) is provided with base (2), base (2) is connected with first drive unit, base (2) can reciprocatingly slide along frame (1), and described base (2) is provided with knife sharpening device, it is characterized in that: described knife sharpening device bottom is provided with sharpening guide rail (5).

2. a kind of knife sharpener as claimed in claim 1 is characterized in that: described sharpening guide rail (5) is an arc-shaped guide rail.

3. a kind of knife sharpener as claimed in claim 2 is characterized in that: described sharpening guide rail (5) removably connects with knife sharpening device.

4. as one of them described a kind of knife sharpener of claim 1-3, it is characterized in that: described knife sharpening device comprises tool rest (4), cutter holder and second drive unit, and cutter holder can move back and forth along sharpening guide rail (5).

5. a kind of knife sharpener as claimed in claim 4 is characterized in that: described cutter holder comprises fixed head (8), and fixed head (8) is provided with can be along the road wheel (6) of sharpening guide rail (5) walking.

6. a kind of knife sharpener as claimed in claim 5, it is characterized in that: described cutter holder also comprises movable plate (19) and the adjustable plate (33) that is provided with between fixed head (8) and the tool rest (4), the lower end of described movable plate (19) and adjustable plate (33) is hinged, ties with the upper end snail of adjustable plate (33) to connect; Adjustable plate (33) is fixedlyed connected with fixed head (8).

7. a kind of knife sharpener as claimed in claim 5 is characterized in that: described fixed head (8) is provided with height limiting plate (7), magnet (36) and clamping piece (31) near a side of grinding wheel (3).

8. a kind of knife sharpener as claimed in claim 4 is characterized in that: described second drive unit is second hydraulic cylinder (10), and second hydraulic cylinder (10) is fixed on the tool rest (4), and the piston rod (11) of second hydraulic cylinder (10) is connected with cutter holder.

9. a kind of knife sharpener as claimed in claim 1, it is characterized in that: described first drive unit is first hydraulic cylinder (16), be provided with the adjusting device of regulating distance between base (2) and the grinding wheel (3) between the piston rod (17) of first hydraulic cylinder (16) and the base (2), described adjusting device comprises nut (15), leading screw (14), hand wheel shaft (18) and handwheel (13), described nut (15) is connected with the piston rod (17) of first hydraulic cylinder (16), the bottom of nut (15) is fixed with along the guide rail (29) of frame (1) walking, nut (15) is connected with leading screw (14), is in transmission connection between leading screw (14) and the hand wheel shaft (18).

10. a kind of knife sharpener as claimed in claim 1 is characterized in that: described base (2) is provided with the vibrating device that is in transmission connection with knife sharpening device, and described vibrating device comprises shock absorber (9), connecting rod (26) and the eccentric drive mechanism that supports knife sharpening device.