SU663582A1 - Barking drum - Google Patents

Description

one

The invention relates to group wood debarking and can be used in debarking designs for the timber and pulp and paper industry.

Known debarkers, including a rotary body and fixed by torsoizu walls with knives attached to their inner surface l.

However, during the operation of known drums, long downtimes are observed during the sharpening of knives due to the inconvenience of sharpening from inside the drum and an increased loss of wood when barking, since the knives on the end walls together with the bark damage the wood.

The purpose of the invention is to reduce the time to sharpen knives and reduce the loss of wood.

This is achieved by the fact that the knives are mounted in the recesses of the end walls of the drum with the possibility of adjusting

the departure of their cutting edges relative to the inner surfaces of the end walls.

This drum design allows the knives to be locked outside or outside of the drum, thereby reducing the time to sharpen the knives; it also allows you to adjust the overhang of the cutting edges of the knives over the inner surfaces of the end faces 1x in accordance with the thickness of the bark, thereby reducing damage to the wood and its loss.

FIG. i shows the proposed drum, a general view; FIG. 2 is a section A-A in FIG. one; in fig. 3 - knife attachment unit, design options.

The drum has a rotary body 1, with the ends of which fixed walls 2 are installed, having slots 3 in which knives 4 are installed, Knives 4 are fixed outside the walls 2 permanently or separately, in the latter case, for example, a set of gaskets 5 can be used for mounting. removable covers 6 for removal of bark are installed for retaining walls. The case of 1 drum can have 7 perforations. The drum has also known devices for installation and drive of the body, loading and unloading of wood and removal of the core. The drum operates as follows. Sharpen knives 4 or replace them with others, for which the casing 6 is previously removed. When replacing knives 4 with a set of gaskets 5, the outreach 4i of the cutting edges of the knives over the inner surfaces of the end walls is set in accordance with the thickness of the bark on the wood. When the housing 1 rotates, the wood loaded into it undergoes debarking, including through friction with the walls 2 with the knives 4, and the wood is slightly damaged, since the outreach tl of the knives corresponds to the thickness of the bark. The division of the crust is removed from the housing 1 through the openings 7 of the housing and through the slots 3 in the fixed end walls, which further reduces the debarking time of the wood. The rooted wood is periodically or continuously removed from the drum. When blunting the knife

Claims (2)

663582 4 the operation of their replacement or sharpening is repeated. Claim 1: The okorochny drum, which includes a rotary body and fixed face sheaves with knives fixed on their inner surface, characterized in that, in order to shorten the time for sharpening knives, the knives are installed in the recesses of the end walls of the drum. 2. The bark drum according to claim 1, characterized in that, in order to reduce the loss of wood, the knives are installed with the ability to control the flight of their cutting edges relative to the inner surfaces of the end walls. Sources of information taken into account during the examination 1. USSR author's certificate No. 446419, cl. In 27 L 1 / GS, 1973. 2. USSR author's certificate number 489639, cl. B 27 L 1/00, 1974. 1