SU1248806A1 - Blade drum of centrifugal shaving machine - Google Patents

Description

The invention relates to the woodworking industry, in particular to wood shredding equipment.

The purpose of the invention is to increase productivity and increase the working area of the knives.

FIG. 1 shows a knife drum, cross section; in fig. 2 - the same, fastening of levels with repeatedly regrind knives; in fig. 3 is a section A-A in FIG. one; in fig. 4 - knife with slats; in fig. 5 is a section BB in FIG. four.

The knife drum includes a housing 1 with segments 2 located around its circumference and brackets 3 with clamping screws 4. K, planes 5 segments 2 with the help of knife holders 6 the knives are pressed 7. The knife holders 6 are made of an elastic material and have a smaller cross section. section, forming a convex surface. Knife holders 6 are matched with clamping screws 4 by means of detachable locking connections 8.

On the end sections of the knife holders, there are straight lines, grooves 9, in which the cylindrical parts of the set screws 10 fixed in the drum case 1 are attached. On the blades 7 in two places along their length, the screws 11 are attached to the slats 12 placed in the guide grooves 13 made in the segments 2. The slats 12 have through slots 14 in which the stops 15 which are movable along the length of the groove are mounted. 14 grooves with their lateral edges. The lugs 15 are fastened to the laths 12 with screws 16. The laths 12 can be fastened to the knives 7 at different distances from the cutting edge, depending on the size of the working area of the knives remaining after the restarts. To do this, knives 7 performed two

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a number of holes 7 located at different distances from the cutting edge.

In two places along the length of the segments 2, the clamping elements are made in the form of adjustable screws 18, the axes of which are parallel to the planes of the 5 segments 2. Screws 18 are installed in size a, providing the specified offset of the blades relative to the working surface of the drum. The movable lugs 15 in the secured position rest on the heads of the adjustable screws 18 or cover them with grooves 19 formed on the lugs 15.

In three places along the length of the knife holders

6 in the middle and along the edges there are threaded holes 20 in which the stops 21 are installed with a small width of knives 7. Wear-resistant linings 22 are installed on the cylindrical surface forming the inner surface of the knife drum.

The device works as follows. When blunt the cutting edges of knives.

7 unscrew the clamping screws 4 until the knife holders 6 release the knives 7, after which the knives 7 pull the strips 12 to the side of the outer surface of the knife drum. After sharpening the knives 7, the stops 15 are set to size a and fixed on a special tool outside the machine. Next, the knives 7, holding the strips 12, wind up on the outer side of the drum under the Knife Shackles 6. At the same time, the slats 12 are placed in the slots 13 of the segments 2, and the stops 15 rest on the heads of the clamping screws 18 or put them on. Then the knives 7 are fastened with the help of clamping screws 4, which are screwed into the brackets 3 until gaps are chosen at the ends of the knife holders 6 and each knife 7 is reliably pressed.

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Claims (3)

1. CENTRIFUGAL SHAFT KNIFE KNIFE DRUM, comprising a housing in which the knives and the base are fixed between the segments by means of a knife holder and clamping screws. ruling elements, characterized in that, in order to increase productivity and increase the working area of the knives, the latter are equipped with fixed along their entire length in two places and tanks in which through grooves are made with the front gears installed in them m and stops interacting with the basing elements. 2. The drum according to π. 1, characterized in that the base elements are located on the segments and are made in the form of adjusting screws. 3. The drum according to claim 1, characterized in that the planks are fixed to the knives by means of elements that are located in the holes made in the knives at different distances from the cutting edges.