CN2405691Y

CN2405691Y - Automatic regrinding machine for round saw-bit

Info

Publication number: CN2405691Y
Application number: CN 00224025
Authority: CN
Inventors: 张国安
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-10
Filing date: 2000-01-10
Publication date: 2000-11-15
Anticipated expiration: 2010-01-10

Abstract

The utility model relates to an automatic regrinding machine for a round saw-bit, which is composed of a driving mechanism, a gear drawing bar linkage, and a feeding mechanism; the driving mechanism comprises a grinding wheel motor, a driving motor, a speed reducer, and a machine seat, wherein, a cam which is provided with the grinding wheel motor is arranged in the speed reducer; the feeding mechanism comprises a work table-board, a hand wheel, a screw rod, a mobile nut, and a saw-bit fixation component, wherein, the mobile nut is sheathed on the screw rod which is connected with the hand wheel; the gear drawing bar linkage comprises an eccentric wheel, a link bar, a swing rod, a deflector rod, a fixing bracket, and a ratchet. The utility model has the advantages of simple structure, stable and reliable performance, superior quality of regrinding, high work efficiency, and low cost; furthermore, the utility model is suitable for the regrinding of the round saw-bits with various tooth forms, tooth pitches, and diameters.

Description

The automatic sharpening machine of saw blade

The utility model relates to the automatic sharpening machine of a kind of saw blade.

Use saw cut in the existing history in several thousand of China, now cut by the bar shaped sawing and developed into motor-driven saw blade cutting, it becomes extremely important or irreplaceable mode in cutting fields such as converted timber, metal, stone material and other nonmetallic materials.Yet, the problem of the fit difficulty of saw blade, also rational without comparison at present solution, also there is not a more satisfactory fit equipment, cutter is still ground in a lot of places by hand, with hand operated grinding wheel machine maintenance mill, perhaps to use the amalgamation of emery wheel equipment and use, this has just produced problems such as the break-in profile of tooth is not carefully and neatly done, of poor quality; Simultaneously, manual labour intensity is big, specification requirement is high, work efficiency is low, the requirement of the modern production that is far from suitable; If reconditioning on universal cutter grinder, then price is expensive, and transportation is inconvenient, can not be the time on arriving with mill, and very uneconomical, thereby brought inconvenience to the user, limited the usage space of saw blade.Because the problem of the reconditioning difficulty of saw blade brings very big restriction for the use of saw blade, a lot of places are replaced by cutoff wheel.

The purpose of this utility model is to provide a kind of simple in structure, simple to operate, stable and reliable for performance, automatic sharpening machine of saw blade of being applicable to various saw blade reconditionings.

The technical solution of the utility model is as follows: the utility model is made up of transmission mechanism, moving tooth linkage and feed mechanism, transmission mechanism comprises emery wheel motor, drive motor, decelerator and support, be provided with the cam that the emery wheel motor can be made progress jack-up in the decelerator, cam is connected on the worm-wheel shaft in the worm reducer, the emery wheel motor is arranged on this cam, and drive motor links by belt pulley and decelerator; Feed mechanism comprises work top, handwheel, screw mandrel, travelling nut and saw blade fixture, and travelling nut is sleeved on the screw mandrel, and handwheel and screw mandrel link.

Moving tooth linkage of the present utility model comprises eccentric wheel, connecting rod, fork, driving lever, fixed support and ratchet, and the decelerator of eccentric wheel and transmission mechanism links, and fork links by connecting rod and eccentric wheel, and driving lever links by connecting rod and fork.Eccentric offset forms oscillating quantity by fork, and this oscillating quantity drives driving lever by fork.

The utility model earlier drags worm reducer by drive motor by belt pulley and rotates in use, and the moving circle of worm-wheel shaft revolution in the worm reducer, cam then finish once and make progress, downward action; By the cam in the decelerator emery wheel motor is made progress jack-up to the summit, utilize its deadweight vertical drop, emery wheel rotation reconditioning sawtooth during the whereabouts; During rising, second tooth of saw blade is sent into the precalculated position, when the emery wheel motor falls for the second time, again by emery wheel reconditioning second tooth by the moving tooth linkage; Go round and begin again like this, by the tooth reconditioning.The effect of moving tooth linkage is: when the worm-wheel shaft of worm reducer rotates, drive eccentric wheel, eccentric wheel makes the fork certain amplitude (oscillating quantity) that swings by connecting rod, drive driving lever by fork, and pass to ratchet, ratchet drives saw blade and rotates around the center, sends into the grinding wheel reconditioning by tooth, it with the emery wheel motor on time motion strict guarantee synchronous operation.The turn handwheel drives travelling nut by screw mandrel and moves along center line, after saw blade is bumped into the saw blade fixture, along with travelling nut moves, carries out reconditioning near emery wheel; Saw blade reconditioning one circle, handwheel provides feeding once.

If crown needs Quenching Treatment, can open drive motor, stir saw blade and slowly rotate, blow red crown (note adjust the duration and degree of heating) with flame gun, again with cooling fluid with sawtooth quench cooled one by one.

The utlity model has following advantage:

1, the utlity model has the characteristics that operations such as shaping, roll flute, cavetto are carried out simultaneously automatically, and have the heat treated function of crown concurrently, particularly cavetto.The saw blade that grinds on universal cutter grinder, its circularity is lower than the circularity after the utility model reconditioning.

2, because the emery wheel motor of the utility model is to utilize deadweight decline fit, if error is adjusted in operation sometimes, send tooth not in place, emery wheel can't fall by force, and is less to the damage of tooth.

3, saw blade has indivedual teeth to damage or breaks, and the utility model can progressively be repaired automatically.

4, of the present utility model applied widely, adjusting range is broad, can be to the saw blade place under repair of different-diameter, profile of tooth and tooth pitch, and also can be to the saw blade place under repair of unlike material (as carbide alloy), different-thickness; If the utility model is changed a little, the saw blade and the band saw blade of all right reconditioning large diameter.

5, work efficiency height of the present utility model, per minute can reach 37 teeth.Be that 500 millimeters, tooth pitch are 10 millimeters saw blade reconditioning three circles for example, only need 15 minutes diameter.

6, simple to operate, for diameter, the roughly the same saw blade of tooth pitch, need not each adjustment, also need not the special messenger guard.

7, simple in structure, compact and reasonable is stable and reliable for performance, economy and durability.Its installed capacity is 0.8kw, and every cost price is about 3～4,000 yuans, and cost is low, and general user can both accept.

8, good to the saw blade grinding quality, the profile of tooth standard is neat.

9, the utility model is the comparatively desirable special-purpose abrasive disc equipment that is suitable for, it has solved the problem of fit difficulty, thereby make the saw blade cutting can progressively replace the grinding wheel cutting, can improve economic results in society greatly, improve work situation, the pollution that dust, smog, smell caused that produces when eliminating the grinding wheel cutting.

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is a structural profile schematic diagram of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the internal structure generalized section of decelerator;

Fig. 4 is the structural representation of the moving tooth linkage of the utility model;

Fig. 5 is the vertical view of Fig. 4.

To shown in Figure 5, the transmission mechanism of the utility model comprises emery wheel motor 1, worm reducer 2, drive motor 4 and support 17, as shown in Figure 3, comprises parts such as worm gear 201, worm-wheel shaft 202 and worm screw 203 in the worm reducer 2 as Fig. 1.As shown in Figure 4 and Figure 5, the moving tooth linkage comprises driving lever 6, ratchet 7, connecting rod 8, fork 9, connecting rod 10, eccentric wheel 11 and fixed support 16, and the two ends, the left and right sides of connecting rod 8 are provided with screw thread.Feed mechanism comprises handwheel 12, saw blade fixation kit 13, screw mandrel 14, travelling nut 15 and work top 19.Drive motor 4 drags worm reducer 2 by belt pulley 5 and rotates, and with emery wheel motor 1 jack-up upwards, to the summit, utilizes its deadweight vertical drop, emery wheel rotation reconditioning sawtooth during the whereabouts by the cam 3 in the decelerator 2; During rising, the 2nd tooth of saw blade 18 is sent into the precalculated position, when emery wheel motor 1 falls for the second time, again by emery wheel reconditioning the 2nd tooth by the moving tooth linkage; Go round and begin again like this, by the tooth reconditioning.The effect of moving tooth linkage is: when the worm-wheel shaft 202 (as Fig. 3) of worm reducer 2 rotates, drive eccentric wheel 11 and pass to connecting rod 10, fork 9 is swung, drive driving lever 6 by fork 9 and pass to ratchet 7, ratchet 7 drives saw blade 18 and rotates around the center, send into grinding wheel 21 reconditionings by tooth, it with emery wheel motor 1 on time motion strict guarantee synchronous operation.Turn handwheel 12 drives travelling nut 15 by screw mandrel 14 and moves along center line, after saw blade 18 is bumped into saw blade fixation kit 13, along with travelling nut 15 moves, carries out reconditioning near emery wheel 21; Saw blade 18 reconditionings one circle, handwheel 12 provides feeding once.If crown needs Quenching Treatment, can open drive motor 4, stir saw blade 18 and slowly rotate, as shown in Figure 5, blow red crown (note adjust the duration and degree of heating) with flame gun 20, again with cooling fluid with sawtooth quench cooled one by one.Arrow among each figure is represented the direction of motion of parts.

When needing to adjust tooth pitch, will be repaiied the tooth pitch of saw blade earlier and be measured, and unscrew then and transfer tooth nut 22, make it to move up and down, it is 1.5～1.8 times of tooth pitch that general little tooth is chosen displacement, and it is 1.5 times of tooth pitch that canine tooth is then chosen displacement, tightens and transfers tooth nut 22 location.Fork 9 is marked with the tooth pitch graduation mark and uses for adjusting.When need adjusting profile angle, unscrew the jack panel that ends under the emery wheel motor 1, the promptly rotatable unspecified angle of emery wheel motor 1 is aimed at former saw blade profile angle, only tightens jack panel again.If zigzag fashion is special, but trimming wheel 21 makes emery wheel 21 shapes basic consistent with the profile of tooth of saw blade 18.When the saw blade diameter not simultaneously, after saw blade 18 is bumped into saw blade fixation kit 13, turn handwheel 12, make the sawtooth sheet along center line near emery wheel 21 after, unscrew locknut 23 again with adapter sleeve 24 turns, connecting rod 8 can elongate or shorten, make driving lever 6 be in the center line upright position substantially, again ratchet is adjusted screw 25 and unclamped, ratchet 7 is inserted in the sawtooth, tighten ratchet adjustment screw 25 and get final product.Start drive motor 4, do fine setting again, adjust adapter sleeve 24, after making sawtooth and the emery wheel profile of tooth being consistent, screw locknut 23 again.Start emery wheel motor 1, bring into operation.

More than debugging accurate after, open drive motor 4 earlier, drive emery wheel motor 1 again, provide feeding mill amount by handwheel 12, on saw blade, draw good original position, every mill one circle increases once mill amount, till mill is good.

Claims

1, the automatic sharpening machine of a kind of saw blade, it is characterized in that forming by transmission mechanism, moving tooth linkage and feed mechanism, transmission mechanism comprises emery wheel motor, drive motor, decelerator and support, be provided with the cam that the emery wheel motor can be made progress jack-up in the decelerator, the emery wheel motor is arranged on this cam, and drive motor links by belt pulley and decelerator; Feed mechanism comprises work top, handwheel, screw mandrel, travelling nut and saw blade fixture, and travelling nut is sleeved on the screw mandrel, and handwheel and screw mandrel link.

2, the automatic sharpening machine of saw blade according to claim 1, it is characterized in that wherein said moving tooth linkage comprises eccentric wheel, connecting rod, fork, driving lever, fixed support and ratchet, the decelerator of eccentric wheel and transmission mechanism links, fork links by connecting rod and eccentric wheel, and driving lever links by connecting rod and fork.