Sharpening-and-finishing apparatus for sharpening of cutting pairs of shearing machines. RU patent 2520290.

FIELD: construction.

SUBSTANCE: sharpening-and-finishing apparatus includes a sharpening element and a holder to press a part in the form of a knife or a comb to be sharpened to the sharpening element. The apparatus is equipped with an electrical control system with a position control sensor of the part to be sharpened relative to the belt, a sensor of pressure force of the part to the belt and a temperature sensor in the contact zone of the part with the belt. In order to perform finishing of combs, the apparatus is equipped with a rheostat switch of number of motor revolutions; with that, the sharpening element is made in the form of an endless belt. The holder has the possibility of controlling pressure force of the part to be sharpened to the belt surface owing to changing the spring compression degree and with supply of cooling liquid to the contact zone of the part with the belt.

EFFECT: improving sharpening quality.

2 dwg

The present invention relates to agriculture, in particular to the field of sheep and the number of devices intended for sharpening the cutting pairs (knives, dies) strogannyh machines. The scope of the proposed system can be extended through the use of it for sharpening of active and passive elements used in everyday shredding devices and for training of operators cutting pairs.

Known devices for sharpening and finishing of cutting pairs strogannyh machines disc type, such as TA-1, DAS 350 (catalogue TU, G: Machines for mechanization of livestock and forage refining machines, №105-2-398-77), and of the invention related to the field of machine-tool and engineering, also having as sharpening element abrasive disk (A.S. 250679 the USSR. M. SC. In 24b. Machine for sharpening the cutting parts strogannyh machines. / Angeleen OG, Krisuk V.I. Publ. 12.08.69. Bul. №26). Despite the obvious ease of use and simplicity of design, these devices have one drawback - the uneven wear of the cutting edge of a knife or dies as a result of difference of values of the tangential speed grinding disc depending on its radius. In addition, for sharpening the cutting couples on a disk-type devices TA-1, DAS 350 is the penetration of abrasive materials and mineral oils on open areas of hands (palms) and persons that adversely affects the health of the exile, pollute the land in a radius of 1.5 - 2.5 meters.

Closest to the claimed technical solution is an apparatus designed VNIIK, which as grinding items use the plane infinite abrasive tape, which ensures the uniformity of abrasion on all width of a working part of a knife and combs (Y.A Mirzoyants, V.E. Efimovich, HE Zudin, S.V. Firichenkova. - Technology and technical means of machine sheep shearing: Monograph. - Kostroma: KGSHA, 2010.- 238 S., Il.) The disadvantages of such devices is the lack of control provisions sharpened details regarding the tape, the efforts of the contact details to the tape and temperature in the zone of contact details with ribbon, implementation, debugging combs.

The objective of the invention: improving the quality of sharpening of cutting elements (knives, dies).

The technical result is achieved due to the fact that the proposed device uses a holder with adjustable efforts pressing sharpened the items to the ribbon, and with a supply of coolant in a zone of contact details with a ribbon, and the electrical control system with sensor control provisions sharpened details (knife, comb) regarding the tape, sensor effort of pressing of the items to the ribbon and the temperature sensor in the zone of contact details with ribbon, and for the implementation of operational development of dies device equipped with a rheostat switch the speed of the motor and the possibility of changing the effort of pressing the distributor to the tape surface due to a change in the degree of compression springs in the holder.

Due to the high temperature in the contact zone sharpened the details with the ribbon at the details, you may receive prizhogi and embrittlement, which affects performance cutting pair, namely reduces its durability. To eliminate this negative effect on the proposed device provides the cooling system with a supply of cooling lubricant in a zone of contact of a sharpened details with the surface of the tape.

We offer rough finishing machine (figure 1) includes the base 1, the electric motor 2, 3 bed, tensioner belt 4, tension pulley 5, band 6, damping spring 7, suspension 8, discharge nozzle 9, 10 holder, the capacity to collect suspension 11, filtering element 12, pump 13, stand 14.

The device is equipped with the electrical control system, 15 panel display information from sensors of control of the sharpened details (knife, comb) regarding the tape, the efforts of the pressure and temperature in the zone of contact details with ribbon.

Holder of 10 (figure 2) has the ability to adjust the effort of pressing of a sharpened details to the tape. Nut 16, moving in the case holder 17, alters the compression springs 18. At the moment the contact details for the ribbon contact panel 19 closes with the contact covers 20, including in the work of the pump, which supplies lubricant-coolant through socket 21.

The cutting element of the pair fixed in the holder 10, the device is activated, the electric motor 2 drives tape 6. Simultaneously with pressing the items to the tape, with the help of the pump 13 begins supply of cooling lubricant to the holder. Tuned suspension is collected in the container 11, where after cleaning the filter 12 returns to the socket 21 holder 10.

To extend functionality in the rough finishing machine has built-in panel of the electric control rheostat switch the number of revolutions of the motor, which will allow by changing the rotation speed of the tape to perform fine-tuning of the feed. It is necessary to change (reduce) the compression springs in the holder by twisting the nuts.

Application of the proposed design allows to refuse completely from the traditional sharpening of cutting pairs on the type devices TA-1, DAS 350, using automotive oils and occasionally there is a need to producivity and cut grinding discs.

Tested in production conditions cutting couples prepared to offer rough finishing system, are characterized by high performance, not inferior qualities pairs, prepared on the type devices TA-1, DAS 350.

Grinding-honing machine for sharpening the cutting pairs strogannyh machines, contains grinding element and a holder to compress sharpened details in the form of a knife or distributor to the grinding element, wherein it is equipped with electrical control system with sensor control provisions sharpened details on tape, sensor effort of pressing of the items to the ribbon and the temperature sensor in the zone of contact details with ribbon, and for finishing combs device equipped with a rheostat switch speed motor that grinding element is made in the form of an endless belt, and the holder is made with adjustable efforts pressing sharpened the items to the tape surface due to a change in the degree of compression springs and with a supply of coolant in a zone of contact details with ribbon.