RU2001732C1 - Disk cutter sharpening device - Google Patents

Abstract

Usage: area of devices for sharpening cutting edges, in particular sharpening circular knives for both metal and circular knives of agricultural machines Summary of the invention: a device for sharpening circular knives comprises a plate with legs to which a grinding head drive attached to the plate is attached. a caliper mechanism with a rotating knife fixed to it and its reciprocating movement or parallel movement relative to the axis of the grinding head, mounted with the possibility of axial rotation of the caliper clamp and adjusting stops. New in the device is the installation of two stops on the right and left of the caliper mechanism, fixing it and made movable. The caliper clamp in the angles set by the stops is fixed by a clamp made in the form of a nut with a handle. The caliper mechanism consists of two mutually perpendicular to the sliders, which are made in the form of a dovetail. 1 s.p. f-ly. 6 ill.

Description

I1 (IE 01 is worn on devices

, i ivn. pp fymnx edges in particular

 i and g-knives as metal

i inc. jfi johei agricultural

-)) And

Iegestn device for sharpening disf-R about quality machines with the frame installed on it

  ., - l holoiku. the fixation mechanism is a CCPC drive mounting discs, the mechanism is m-f-i, f, t, tll grinding

vi t i mp i ism (Oorochny input and output ji. ii-boD ,. one circle Onosnabenzhenod two cshfkh with lnykrugami circles. m,) I} 92 USSR cl. V 24 V 3/46 1982

(of my device is the TT, Hr-iij30H knife sharpener

There is also no adaptation to the metal washing machine, which contains the machine installed when i jj in the

Thu (icVUHP machine with the ability to interconnect IT twi with support and mandrel spindle for

1mg-, Lrts |, of the processed product

Mf and -support are suitable for DISCO-LIU with a variable rear angle beyond TU 1K.

Mt with enough fixtures - a small range of sharpening angles on di t, MP, -QJ

ii - the invention is the expansion of I to zero i and tervnx possibilities of an angular Ttn ha with even more angles

 I f chi

j, this is achieved in that the device for sharpening circular knives containing a plate with notes attached to the drive of the grinding head, a caliper mechanism attached to its plate with a rotating rotary knife fixed to it with the possibility of + CHQCT axial rotation and reciprocating or parallel movement relative to the axis of the grinding head, clamping mechanism and adjusting stops

According to the invention, the caliper adjusting stops are attached to the plate on both sides of the caliper mechanism, the right regulating stop adjusting the size of the rear and front negative angles and the left stop adjusting the value of the front positive angle, made movable. The caliper mechanism clamps from the os rotation of the vertical axis n to the given position of the corners is made in the form of a nut with a handle clamping with friction forces

Comparative analysis with the prototype shows that the claimed device is characterized in that the caliper mechanism is made of two guides with sliders perpendicular to each other and performing movements perpendicular to each other, which can be made in the form

dovetail

In Fig 1 shows a device plan; figure 2 is the same front view; in Fig. 3 - section aa in Fig. 1, in Fig. 4 - section bB in Fig. 3. Fig. 5 - front negative angle and rear angle; figure 6 - front positive angle and rear angle.

The device for sharpening circular knives consists of a plate 1 with legs. An electric motor 2 is attached to them, which transfers rotation through a V-belt drive 3 and a grinding head 4 attached to the plate to the grinding wheel 5. A hole is made in the plate into which the glass 6 is inserted and fixed , with 0 holes, into which screws 7 with lock nuts 8 are screwed. An axis 9 is inserted into the glass, made with a groove 10, into which the screws 7 enter

The axis can rotate, and screws 7 hold it from the axial displacement. A nut 11 with a handle 12 is screwed onto the axis, which stops the rotation axis due to friction forces. A guide 13 is screwed to the upper part of the axis, made, for example, in the form of a tail. Two support stops 14 are attached to the guide from the ends, into the slots of which a screw 15 is inserted, screwed into the nut 16, attached from the bottom to the guide-slider 17 It 5 made on silt of mutually perpendicular female and male surfaces in the form of a dovetail from one cast part.

The screw 15 is fixed in the stops 14 from one end by a washer 18 and a cotter pin 19, s

0 another - shoulder 20, made on a screw. Another same screw is fixed to the slide guide from the ends by stops and a washer with a cotter pin. The screw 16, in turn, is screwed into the nut 16, which is also attached 5 from the bottom to the slider 21. On this slider, housings 22 are cast or attached along its axis with bearings 23 into which the shaft 24 is inserted and fixed. Knives 25 are fixed to it on the right

0 of any configuration. A flywheel 26 is attached at one end of the screw 15, and a flywheel 27 at the other, for example, the lower screw. When the flywheel 26 is rotated, the shaft 24 and the knife 25 attached to it can move backward 5 relative to the axis of the grinding wheel 5. When rotating flywheel 27 moves the whole mechanism, mounted on a slide slide 17 parallel to the axis of the grinding wheel, to set the front negative angle at i and the rear angle o. on the knife to the plate is attached regulatory emphasis 28 (see Fig. 1). To set the positive front angle, the flange 29 is mounted on the plate from the guide-slider.

A device for sharpening circular knives operates as follows. A disk knife 25 is fastened to the shaft 24, which is located in the bearings 23 and in the housings 22 on the slider 21. For example, it is necessary to sharpen the rear angle a. . To do this, the adjusting stop 28 is put into position by turning the caliper around the vertical axis 9 of the cup 6 and clamped with the nut 11 of the handle 12 in this way. so that the caliper does not rotate about an axis.

Turn on the electric motor 2, attached to the legs of the plate 1, which transmits rotation through the V-belt transmission 3 grinding head 4 circle 5 counterclockwise. The flywheel 27 transfers the rotation of the screw 15, fixed between the two stops 14. In turn, the screw is fixed between the washer 18 and the cotter pin 19 and the shoulder 20, transmits the movement through the nut 16 to the guide-slider 17. The shaft with the knife moves linearly to the periphery of the circle 5 At this time, the electric motor is turned on and the wheel 5 begins to rotate counterclockwise, due to the friction forces of the abrasive wheel 5 and the knife 25, it begins to sharpen the rear corner of the knife 25.

For sharpening at 1 (see Fig. 5) the flywheel

27 retraction of the knife 25 from the periphery of the circle 5. The clamping nut 11 and the handle 12 unclench the axis 9 and set the control stop

28 at an angle yi, moving the stop along the plate, and fix it in the desired position. With the flywheel 26, take the knife 25 to the left with the null 24. Then, turning the flywheel 27, bring the knife 25 to the end left plane of the circle 5 (see Fig. 5), having preliminarily clamped the axis 9 with the nut 11. The rotating abrasive wheel 5 with its own the end surface begins to rotate and sharpen the negative angle yi. To sharpen a positive angle at i, the flywheel 27 disengages the knife

0 25 with a circle 5. The clamped axis 9 is removed from fixing by a nut 11 and a handle 12 by turning in the opposite direction. The support, together with the shaft 24 and the knife 25, rotates about an axis 9 to the stop 29 by an angle y. Clamp the stop

5 29 and axis 9. Since the knife 25 has already been retracted by the flywheel 27, the flywheel 26 brings it closer to the end face of the abrasive wheel 5. At this time, wheel 5 begins to rotate and sharpen the knife due to friction forces

0 25 at the angle y (see figure 6). Circle 5 after several sharpening is recommended to be edited. The circle can be used up to acceptable sizes.

Thanks to the rotation of the caliper around

5 angles and mechanisms of movement of the shaft with a knife fixed on it, reciprocating with respect to the axis of the abrasive wheel and the adjusting stops fixed movably on the plate, two angles can be sharpened,

0 without removing the knife from the disk. And thanks to the fixing of the caliper axis with a clamp in the form of a nut with a handle, we can say about the convenience in using this device. Therefore, it is possible to grind on this device not only wild knives for metal, but also the disks of agricultural machines and other implements. (56) 1. USSR author's certificate N 918034, cl. 24 V 3/46, 1982.

40

Claims (2)

1. DEVICE FOR GRINDING DISK KNIVES, consisting of a plate with legs, to which the drive of the grinding head mounted on the plate is attached, a support mechanism with a rotating rotary knife mounted on it, mounted with the possibility of axial rotation and reciprocating or parallel to the axis grinding head, caliper clamping mechanism and adjusting stops, characterized in that the adjusting stops are movably fixed to plate with the possibility of fixing the caliper mechanism on the right and left, and the right control stop is installed with. the ability to adjust the values of the rear and front negative angles, and the left - the values of the front positive angle, while the caliper mechanism clamps against rotation around its vertical axis and the predetermined position of the corners in the form of a nut with a handle. 2. The device according to claim 1, characterized in that the caliper mechanism is made in the form of two /, guides with sliders perpendicular to each other. 27 e go 3,241 6/6 22 2f W (pc / pf OS fb / gb