SU1211035A1 - Feed mechanism for trunk-working machines - Google Patents

Description

The invention relates to the woodworking industry and can be applied in the mechanism for feeding debarking machines.

The purpose of the invention is to reduce metal consumption and increase the reliability of supplying logs of various lengths.

FIG. Figure 1 shows the feed mechanism for stem-cutting, general view; in fig. 2 - the same, top view.

The leg bushing includes the feeding and receiving sections A and B for pulling logs through a fixed vertically mounted rotor 2 installed in the stator 1 with pick-ups 3. Each section contains upper and lower rollers 5 and 8 on the base 4, which are mounted in pairs, respectively, on upper and lower, movable vertically, frames 9, 10. In each frame, the second along the feed roller 6, 8 is made with a diameter d smaller than the other, in front of it, which is paired with it. Rollers 5–8 have drives of their rotation in the form of motors I, associated with rollers 5–8 by means of, for example, chain gears 12. Rollers 5–8 each pair are kinematically connected between themselves by means of a mechanical gear, for example gear teeth 3, 14 with intermediate gear 15, with gear ratio. where D; and di are the values of the larger and smaller diameters located in the pair of rollers.

The frames 9 and 10 are hingedly suspended from the frame 4 and kinematically connected to each other by means of two symmetrically arranged relative to the longitudinal axis 16 of the rotor 2 of the hinge parallelogramm of the upper and lower gear sectors 17. The latter are hingedly mounted on the frame 4 and are connected with it elastically by means of springs 18. Each hinge parallelogram is formed by two levers 19, 20. One ends of these levers are hinged on the frame, while others are on the base 4 and are the vertices of the specified parallelogram. One of the levers 20 of each parallelogram, closest to the longitudinal axis of the rotor, is made, for example, in the form of a cylinder 21 with a rod 22 and a piston 23 and is provided with elastic elements, for example, in the form of cup springs 24 mounted on the rod 22 on both sides of the piston 23 The rotation axes of 25 rollers with a smaller diameter are located closer to the longitudinal axis 16 of the rotor 2, than the axes 26 of the PISH located in a pair of other rollers.

Barking machine works as follows.

A log 27 (e.g., forward forearm) is fed to the upper and lower rollers 5, 7 Tsodayupdey section A by means of a longitudinal transport device (not shown). At a meeting with the front end of the log 27, rollers 5, 7 run up to its surface. In this framework 9 and 10 through

five

0

0

:five

0

five

sector 17 is elastically divorced then from the longitudinal axis 16 of the machine, upper up, lower 11 of the same values. making a plane-parallel motion and centering brsv.ch along the axis of the rotor 2 debarking machine. The log 27, which is wound around 5, 7, is grabbed, moves forward to the next pair of rollers 6, 8. which are already in the first open position before the central door. When interacting with the end of the log with rollers 6, 8 pos., The next ones also run up to its end, frames 9, I) turn - from relatively points along ... connecting levers 19, 20 on yi OJi a. at the expense of the elastic extension and pin 22 of q.lin.: 1ra 21.

In this way. br :: vp; 27, kpizhatos springs 18, is supplied to the poro:) v 2 s to (; rosii:; p el., Ho r oymi {) k ;: ri1 ;;; e c. U; .sr- i; i-ujae: vioe; 1. pairs of val.ds; -. ;, 7, 6, 8 breppo 27 curriculum in lor hchitelemy 3 allows you to pledge; Ci .i winding at the slowest progress ;;:; e; eating logs through the zina, pj; ma /; - ;: m, ;; and 1; lr 21 with springs 24 ensuring by: i (i) ; o 11rodo,) P (; Cr; K) of the machine regardless of c6ei a and rad. and about;-. surface. At the approach; Srvich 1 (.) of Go Topiui ca ()) of its environs to Wah. 5, 7 prielgpy sei-iii-ui B the last rabbits; 01l; h1 | S, (providing y; serge of brevp 27 from the moto ride exit: C) i {rj., 6 | ic; ira nz va, 5, 7 0; d1ioi, Gpcuuo is held and | ; odeci va.ltsak S - 8 iipn- ccKiun-i. With 5yods ass;) it is its top, and the logs are 27 of rollers 6, 8: yu.l....1i1sy ccK .iHn. pa.Miai 9. 10 CBCJ-dts under the action of springs 18 h of bee; fresh sectors 17, etc; -1 e m; a L oto to receive a new log. All oxofip logs are sent from the ptrropa disc to two pairs of fingers of the prlemp section of the new copier 1eyer (not shown;), the nocjie of the output of the rear torp of combat from the rollers 6 .. 8. The frames 9 and 10 of it are likewise reduced in a similar way to the irod of the machine axis and the preparation of the machine to the reception of the next log on the log. When submitting the next b {) the yacha machine works a1: a: 1Ohichpo. Parallel poCiro .; 0} i eiu-ie) b chagov in the mechanisms of movement of the frames in each section; n1 li use one spring-loaded toothed pair in it obsch echaat reduction of the impact of the Hai-ruzok pa second along the feed shaft) Pb each frame, constant The pressure of the valpog isa log is when the log moves from one pair of rollers to another, for the summation of the 1-weight of both rollers of the frame occurs even when one of them is pressed.

Such a machine structure is compact, provides increased reliability, reduced vibration, and prevents the possibility of a reverse ejection of logs from the machine.

Ensuring the copying of the surface of the log by performing one of the links in the frame movement mechanism with a shock absorber made it possible to eliminate the second gear pair

and due to this and additionally due to the implementation of rollers of different diameters, to reduce the metal consumption of the structure by 13

I 4 ° / s / o.

Claims (2)

1. FEEDING MECHANISM FOR STEM PROCESSING MACHINES, including the feeding and receiving sections located on both sides of the working body, each of which contains drive rollers, pairwise mounted on the upper and lower movable frames, interconnected by a system of levers and gear sectors, characterized in that, in order to reduce metal consumption and increase the reliability of the supply of logs of various lengths, the lever system of each section is made in the form of two symmetrically located relative to the longitudinal axis of the working parallelogram, and the parallelogram levers closest to this axis are made with shock absorbers. 2. The mechanism by π. 1, characterized in that the second roller along the feed roller in each movable frame is made with a diameter smaller than the diameter of the first roller. FIG. I