CN201015840Y

CN201015840Y - Knife sharpener structure

Info

Publication number: CN201015840Y
Application number: CNU2007200006696U
Authority: CN
Inventors: 蔡宏农
Original assignee: Individual
Current assignee: Cai Hongnong
Priority date: 2007-01-10
Filing date: 2007-01-10
Publication date: 2008-02-06
Anticipated expiration: 2017-01-10

Abstract

The utility model relates to a structure of knife milling device, mainly consisting of a base, a motor, a knife milling wheel group, a revolving shaft and a spring. The knife milling wheel group mainly conducts contact milling with a blade via a milling tray and a milling prick, one side of the blade conducts a contact milling with the plane of the milling tray via two contact spots, the other side conducts a contact milling with the taper plane of the milling prick via a single spot, the rocking of a knife in the process of to-and-fro milling is avoided by the two-surface and three-spot milling style between the milling tray, the milling prick and the knife. Furthermore, when the knife is placed in the working channel, the blade can drive the milling tray to move, thus enlarging the gap between working channels, the gap pulled apart is larger when the blade is thicker and smaller when the blade is thinner, and the taper plane of the milling prick can just relatively limit the excessive declination of the blade. The utility model makes the correct contact milling between the knives of different blade thicknesses with the milling tray and the milling prick be maintained in the milling operation via the prick degree association between the gap width of working channels and the taper plane.

Description

The knife sharpener structure

Technical field

The utility model is to be a kind of knife sharpener structure, is meant especially with power to drive sharpening wheels high speed rotating and the knife sharpener structure of the operation of whetting a knife.

Background technology

The pattern of knife sharpener is quite various, the knife sharpener that can generally be divided into unpowered and dynamic driving grinding wheel, the utility model will be inquired into, then be to rotate the operation of whetting a knife as the drive power source grinding wheel with motor, see also shown in Figure 1, this is traditional single wheeled electric knife grinder of whetting a knife, it is that a discoid grinding wheel 11 is set in a body 10, and offer a skewed opening 12 respectively in grinding wheel 11 both sides, can stretch into opening 12 places for cutter 13, back and forth vertically move cutter 13 by the operator, and distinguish the blade of milling cutter 13 both sides by the two side faces of grinding wheel 11.

When the aforementioned conventional knife sharpener was whetted a knife operation, this grinding wheel and two side edge portions that can't the tool setting tool ground simultaneously, but had formerly ground the blade that grinds opposite side behind the blade of a side wherein again.Such lapping mode, can make the strength pushing and pressing effect of ora terminalis position because of ground by grinding wheel of blade, and towards the crooked phenomenon of extending of the opposite side of blade, make the cutter after grinding be not easy sharp keen on the contrary, therefore, when whetting a knife operation, must exchange two side edge portions of milling cutter at short notice repeatedly, avoid the situation of blade because of the single load bearing overmastication with correction.

Therefore, if can when the sharpening operation is carried out, promptly carry out the grinding of cutter two side edge portions simultaneously, in the time of then not only can solving one-sided grinding, the problem of the one-sided stress deformation of blade, and can promote grinding efficiency, and save the complicated puzzlement of operation of align hone.

Novel content

The main purpose of the utility model, be to provide a kind of knife sharpener structure, sharpening wheels of the present utility model mainly are to contact the sharpening operation with blade by the sharpening dish and the awl of whetting a knife, this blade one side contacts grinding with the flat whetstone face of sharpening dish with double-make contact, the opposite side of blade then contacts grinding with the taper whetstone face of the awl of whetting a knife with single contact point, by sharpening dish and whet a knife awl and the two-sided sharpening kenel of seizing on both sides by the arms of cutter, can avoid cutter to rock, and stablize the sharpening operation in the sharpening process moderate that moves back and forth.

Another purpose of the present utility model, be to provide a kind of knife sharpener structure, when cutter is inserted the work ditch, blade can promote the displacement of sharpening dish increases work ditch spacing, the spacing that the thicker person of thickness of knife edge pushes open is bigger, the distance that the thin person of thickness of knife edge then pushes open is less, and the taper whetstone face cone degree of this sharpening awl just can limit blade relatively and excessively moves down, that is, the utility model is by the gap width of work ditch and the taper fit of taper whetstone face, when making the cutter of various different thickness of knife edge whet a knife operation, can both keep correctly contacting sharpening with the sharpening dish and the awl of whetting a knife.

A kind of knife sharpener structure, this structure comprises:

One pedestal forms an accommodation space and establishes for knife sharpener member group in it, offering in the top end face of pedestal that several profile grooves connect should logical accommodation space;

One motor is the power source of knife sharpener, is mounted on the inner side of accommodation space;

At least one sharpening wheels, establish sheet by two groups, one sharpening dish and one is whetted a knife to bore and is constituted, each group is established sheet and is equipped with a bearing, these two groups establish sheet be separated by one the distance after be mounted in the accommodation space, this sharpening dish is located at two groups and is established between the sheet, one end face is shaped to a flat whetstone face, the working face of this flat whetstone face for whetting a knife, and the sharpening dish is provided with a perforation, this sharpening awl is provided with establishes flat whetstone face one side that is positioned at the sharpening dish between the sheet at two groups, this sharpening awl is shaped to a taper whetstone face with flat whetstone face opposing end faces, this taper whetstone face is the working face for whetting a knife also, and the awl of whetting a knife is provided with a perforation, and this sharpening dish forms a work ditch with the outer rim of the awl of whetting a knife at a distance of a distance, and this work ditch is corresponding with profile groove;

One rotating shaft, one end and motor secure bond and driven by motor and to carry out rotation operation, end wore one group in regular turn and established the bearing of sheet, perforation, the perforation of sharpening dish and the bearing that another group is established sheet of the awl of whetting a knife in addition, this two bearing and the awl of whetting a knife are fixedlyed connected with rotating shaft, this sharpening dish then must move in rotating shaft, and rotating shaft must drive the sharpening dish and the awl of whetting a knife rotates the sharpening operation;

One spring, one end and the pushing and pressing of sharpening dish elasticity, make between flat whetstone face and the taper whetstone face normality keep approaching, when the blade of cutter is located at the work ditch and is whetted a knife operation, blade can promote the sharpening dish and move and make flat whetstone face and taper whetstone identity distance from the corresponding increase in response to thickness of knife edge, and the tapering of taper whetstone face can limit blade and excessively moves down, and makes flat whetstone face and taper whetstone face keep correctly contacting with blade.

The accommodation space madial wall of this pedestal forms three card rib structures at interval, establish the sheet outer rim then to form three engagings recessed for these two groups, it is recessed that the shell of this motor forms three engagings, and making motor and two groups establish sheet can fasten and be mounted on accommodation space inside by engaging card fin in recessed and the pedestal.

The flat whetstone face inboard of this sharpening dish is provided with one and holds and receive recessed hollow structure, carries out the iron filings that produced in the process in the sharpening operation, can drop because of taking advantage of a situation to be positioned to hold and receive recessed sky.

This rotating shaft is a hexagonal bar structure, and the perforation that makes this sharpening dish is corresponding hexagon ring, makes sharpening coil to such an extent that move in rotating shaft, and rotating shaft must drive the sharpening dish and rotates the sharpening operation.

In the bottom of pedestal one magnet is set,, avoids iron filings to fly away arbitrarily everywhere, and the user can take out this magnet removing iron filings easily as compiling of sharpening iron filings that process produces.

In pedestal, can be equipped with one group of corase grind knife wheel set and one group of fine grinding knife wheel set simultaneously, when the operator whets a knife operation, can earlier cutter and corase grind knife wheel set tentatively be ground, again by the further careful grinding of fine grinding knife wheel set.

The beneficial effects of the utility model are: this knife sharpener structure can avoid cutter to rock in the sharpening process moderate that moves back and forth, and stablize the sharpening operation, by the gap width of work ditch and the taper fit of taper whetstone face, when making the cutter of various different thickness of knife edge whet a knife operation, can both keep correctly contacting sharpening with the sharpening dish and the awl of whetting a knife.

Description of drawings

Fig. 1 is known single wheeled electric knife grinder schematic diagram of whetting a knife.

Fig. 2 is the utility model knife sharpener member three-dimensional exploded view.

Fig. 3 is the utility model grinding wheel stereo amplification figure.

Fig. 4 is the utility model sharpening awl stereo amplification figure.

Fig. 5 is that the utility model knife sharpener is three-dimensional in conjunction with figure.

Fig. 6 be the utility model knife sharpener in conjunction with longitudinal sectional view.

Fig. 7 be the utility model knife sharpener in conjunction with transverse sectional view.

Fig. 8 is that the utility model knife sharpener and cutter carry out the horizontal cross-sectional schematic of sharpening state.

Fig. 9 is that the thin cutter of the utility model knife sharpener and thickness of knife edge carries out the vertical cross-sectional schematic of sharpening state.

The 10th, the cutter that the utility model knife sharpener and thickness of knife edge are thicker carries out the vertical cross-sectional schematic of sharpening state.

Figure 11 is that the utility model knife sharpener sharpening process produces the iron filings view.

Figure 12 is that the utility model knife sharpener is provided with two groups of sharpening wheels view.[

10 bodies, 11 grinding wheels

12 openings, 13 cutters 70

20 pedestals, 21 accommodation spaces

22 card fins, 23 profile grooves

31 engagings of 30 motors are recessed

40 sharpening wheels, 401 corase grind knife wheel set

402 fine grinding knife wheel set 41a 41b group is established sheet

412 engagings of 411a411b bearing are recessed

421 flat whetstone faces are coiled in 42 sharpenings

422 hold receive recessed empty 423 the perforation

43 sharpening awls, 431 taper whetstone faces

432 perforation, 433 tips

44 fixtures, 45 work ditches

50 rotating shafts, 60 springs

61 fixtures, 70 cutters

71 blades, 80 iron filings

90 magnet A contact points

B contact point C contact point

The specific embodiment

About the utility model for reaching above-mentioned purpose, the technology that is adopted, means and effect, now lift a preferable possible embodiments and cooperate graphic detailed description as after, at first, please cooperate and consult shown in the 2nd, 3,4,5,6,7,8,9 figure, a kind of knife sharpener structure that the utility model embodiment is provided is made of a pedestal, a motor, sharpening wheels, a rotating shaft and a spring, wherein:

This pedestal 20, form an accommodation space 21 in it, establish for knife sharpener member group, these accommodation space 21 madial walls form three card fin 22 structures at interval, inlay card when being installed in accommodation space 21 as member is fixed, and offer in the top end face of pedestal 20 that several profile grooves 23 connect should logical accommodation space 21, this profile groove 23 is the narrower structure kenel in open two ends, stage casing;

This motor 30 is the power source of knife sharpener, and it is recessed 31 to form three engagings in motor 30 shells, make motor 30 can by engage recessed 31 with pedestal 20 in card fin 22 fasten and be mounted on accommodation space 21 inner sides;

These sharpening wheels 40, be to establish sheet 41a 41b by two groups, one sharpening dish 42 and one is whetted a knife and is bored 43 formations, respectively group is established and is equipped with a bearing 411a 411b on the sheet 41a 41b, and in outer rim form three the engaging recessed 412, can by this engage recessed 412 with accommodation space 21 in card fin 22 fasten to organize and establish, make these two groups to establish be separated by a distance back and group of sheet 41a 41b and establish, this sharpening dish 42 is provided with to be established between the sheet 41a 41b at two groups, and an end face is shaped to a flat whetstone face 421, the working face of this flat whetstone face 421 for whetting a knife, and be provided with one holds and receives recessed empty 422 structures in the inboard of this flat whetstone face 421, and sharpening dish 42 is provided with a perforation 423, this sharpening awl 43 then setting is established between the sheet 41a 41b at two groups, and the flat whetstone face 421 of a side and sharpening dish 42 is adjacent, side then abuts against with a fixture 44 in addition, this sharpening awl 43 is shaped to a taper whetstone face 431 with flat whetstone face 421 opposing end faces, this taper whetstone face 431 is the working face for whetting a knife also, and the awl 43 of whetting a knife is provided with a perforation 432, under the normality, the cone point 433 of this sharpening awl 43 and this sharpening are coiled holding of 42 inner edges and are received and recessed empty 422 abut against mutually, then form a work ditch 45 between the outer rim of the sharpening dish 42 and the awl 43 of whetting a knife at a distance of a distance, this work ditch 45 is corresponding with profile groove 23, is positioned at work ditch 45 and can probe into from profile groove 23 for cutter 70;

This rotating shaft 50, one end and motor 30 rotor secure bond, and must be driven by motor 30, carry out rotation operation, end then wore one group in regular turn and established the bearing of sheet 41a, perforation 432, the perforation 423 of sharpening dish 42 and the bearing that another group is established sheet 41b of the awl 43 of whetting a knife in addition, this two bearing and whet a knife awl 43 and rotating shaft 50 are for fixedlying connected, this rotating shaft 50 must be hexagonal bar structure, and make the perforation 423 of this sharpening dish 42 be corresponding hexagon ring, sharpening dish 42 must be moved in rotating shaft 50, and rotating shaft 50 must drive sharpening dish 42 and the awl 43 of whetting a knife rotates the sharpening operation;

This spring 60, the pushing and pressing of 42 elasticity are coiled in one end and sharpening, end then abuts against with a fixture 61 in addition, make the flat whetstone face 421 of sharpening dish 42 and the taper whetstone face 431 of the awl 43 of whetting a knife between normality keep approaching, but when blade 71 setting of cutter 70 is positioned at work ditch 45 and whets a knife operation, blade 71 can promote sharpening dish 42 and move and make

flat whetstone face

421 and 431 translations slightly of taper whetstone face, and can limiting blade 71, the tapering of taper whetstone face 431 excessively moves down, make flat whetstone face 421 keep correctly contacting, and the width of this work ditch 45 is corresponding with blade 71 thickness with blade 71 with taper whetstone face 431.

The above assembly that is each member of the utility model and structure concerns the position, when the utility model knife sharpener carries out the sharpening operation of cutter, these sharpening wheels can carry out the grinding operation of cutter two side tool swords simultaneously, and the utility model is seized the sharpening operation by the sharpening dish and the awl of whetting a knife on both sides by the arms with three contact points of blade, the sharpening operation is stablized carry out smoothly, use mode of operation to be described in detail as follows it now:

See also Fig. 8, shown in Figure 9, sharpening wheels 40 of the present utility model mainly are to contact the sharpening operator by sharpening dish 42 and the awl 43 of whetting a knife with blade 71, when whetting a knife operation, the hand-holdable cutter 70 of operator is also put blade 71 downwards towards the profile groove 23 of pedestal 20, blade 71 is contacted with the sharpening dish 42 of high speed rotating and the awl 43 of whetting a knife, shown in the 7th figure, and begin the operation of whetting a knife.

It should be noted that, as Fig. 6, shown in Figure 7, the sharpening of these sharpening wheels 40 is coiled 42 1 sides and is equipped with a spring 60, as the pushing and pressing strength that makes sharpening dish 42 toward the awl 43 direction closings of whetting a knife, make the awl end of the awl 43 of whetting a knife keep in touch state with sharpening dish 42 under normal conditions, and when cutter 70 is inserted sharpening dish 42 and is whetted a knife work ditch 45 between awl 43 outer rims, blade 71 can be pushed sharpening dish 42 open and the spacing of the awl 43 of whetting a knife a little, the cutter 70 that blade 71 thickness are different can make sharpening dish 42 and relative adjustment of work ditch 45 spacings of the awl 43 of whetting a knife relatively by this, that is, as shown in Figure 9, the spacing that blade 71 thinner thickness persons push open is less, as shown in figure 10, blade 71 thickness are bigger than the distance that the latter then pushes open, taper whetstone face 431 taperings of awl 43 of wherein whetting a knife just can limit blade 71 relatively and excessively move down, in other words, the gap width of this work ditch 45 just can cooperate with the cutter 70 of different blade 71 thickness with the tapering of taper whetstone face 431, when making the cutter 70 of various different blade 71 thickness whet a knife operation, can both with sharpening coil 42 and the awl 43 of whetting a knife keep correct contact condition.

What deserves to be mentioned is, when cutter 70 and knife sharpener are whetted a knife operation, these blade 71 1 sides contact grinding with the flat whetstone face 421 of sharpening dish 42, the inboard of this flat whetstone face 421 forms one and holds and receive recessed empty 422 in the utility model, shown in the 8th figure, blade 71 1 sides have double-make contact A, B contacts the operation of whetting a knife with flat whetstone face 421, the opposite side of blade 71 then contacts and the operation of whetting a knife with single contact point C with the taper whetstone face 431 of the awl 43 of whetting a knife, in other words, two sides of this blade 71 are carried out three contact point A with flat whetstone face 421 and taper whetstone face 431 respectively, B, the sharpening operation of C contact, compared to traditional single-point contact, the kenel that this three contact points contact is whetted a knife in the utility model can increase the fitment stability between cutter 70 and the sharpening wheels 40.

Moreover, the operator is when whetting a knife operation, be to carry out the forward and backward operation that moves back and forth with the tangential direction that hand-held cutter 70 and tide mill knife wheel set 40 are rotated, the operator is in the forward and backward process that moves back and forth, cutter 70 can be the vibrating state of on-rectilinear movement unavoidably, but the utility model is 3 sharpening kenels of seizing on both sides by the arms by the sharpening dish 42 and the awl 43 of whetting a knife with cutter 70, just can avoid cutter 70 excessively to rock, and stablize the sharpening operation process.

In addition, the utility model forms one at the end face of this sharpening dish 42 especially and holds and receive recessed empty 422 structures, carry out in the process in the sharpening operation, see also shown in Figure 11, can produce iron filings 80 between blade 71 and flat whetstone face 421 and the taper whetstone face 431, these iron filings 80 can be because of gravitational gravity effect, receive recessed empty 422 and take advantage of a situation to drop to be positioned to hold, compile to the bottom of pedestal 20 gradually again, in the process, this holds, and the recessed empty 422 relaying dwell points that just provide iron filings 80 to compile are provided, and influence the defective of sharpening effect when avoiding iron filings 80 to be stranded in flat whetstone face 421 or taper whetstone face 431, in addition, one magnet 90 can be set in the bottom of pedestal 20, as finally compiling of sharpening iron filings that process produces 80, avoid iron filings 80 to fly away arbitrarily everywhere, and the user can take out this magnet 90 removing iron filings 80 easily.

When the actual enforcement of knife sharpener, can in same pedestal 20, set the sharpening wheels more than a group, for example: see also shown in Figure 12, can be equipped with one group of corase grind knife wheel set 401 and one group of fine grinding knife wheel set 402 simultaneously, by this, when the operator whets a knife operation, can earlier cutter 70 and corase grind knife wheel set 401 tentatively be ground, carry out further careful grinding by fine grinding knife wheel set 402 more afterwards, so collocation can make the grinding achievement of cutter 70 more become to improving and save the activity duration.

Claims

1. a knife sharpener structure is characterized in that, this structure comprises:

2. knife sharpener structure according to claim 1, it is characterized in that: the accommodation space madial wall of this pedestal forms three card rib structures at interval, establish the sheet outer rim then to form three engagings recessed for these two groups, it is recessed that the shell of this motor forms three engagings, and making motor and two groups establish sheet can fasten and be mounted on accommodation space inside by engaging card fin in recessed and the pedestal.

3. knife sharpener structure according to claim 1 is characterized in that: the flat whetstone face inboard of this sharpening dish is provided with one and holds and receive recessed hollow structure.

4. knife sharpener structure according to claim 1 is characterized in that: this rotating shaft is a hexagonal bar structure, and the perforation that makes this sharpening dish is corresponding hexagon ring, makes sharpening coil to such an extent that move in rotating shaft, and rotating shaft must drive the sharpening dish and rotates the sharpening operation.

5. knife sharpener structure according to claim 1 is characterized in that: the magnet that sharpening iron filings that process produces are compiled is set in the bottom of pedestal.

6. knife sharpener structure according to claim 1 is characterized in that: can assemble one group of corase grind knife wheel set and one group of fine grinding knife wheel set in pedestal simultaneously.