SU488702A1 - Log Feeder for Woodworking Machines - Google Patents

Description

one

A device for feeding logs into woodworking machines is known, including a frame on which a conveyor and a clamping mechanism are mounted,

The purpose of the invention is to enable the centering of the log along the axis of the machine,. This is achieved by the fact that the conveyor is equipped with a lowering mechanism, which is filled in the form of articulated four-link elements kinematically connected with the drive, with the upper elements of the four-joints connected to the conveyor, and the lower elements with the frame of the device

FIG. 1 shows the proposed device, general; in fig. 2 - the same in terms of; in fig. 3 - the front part of the device in the extreme upper position of the conveyor; in fig. 4 - section along the AA

FIG. one.,.

On frame 1 devices are mounted

conveyor 2 and clamping mechanism 3,

Conveyor 2 is made up of three chain conveyors mounted on a spring-loaded movable frame 4, each of which is equipped with traverses that together form a saddle profile G | The lateral chain conveyor 5 ZHiHHHee 6, thereby providing a log in the cutting zone. The rotation of the drive shaft 7 of the chain conveyors is carried out from the drive 8 through the drive shaft 9.

The frame 4 is provided with sliders 10 moving in the guides 11 of the frame 1.

(The vertical movement of the conveyor 2 is carried out by a lowering mechanism 12, made in the form of hinged; four-wheel articulated 13. The upper elements of the four four-articulator are pivotally connected to the frame 4, and the lower 15 - by the frame 1. The four-membered 13 through tu 16, crank 17 and cardan shaft 9 connected to the drive 18.

The clamping mechanism 3 contains three U-shaped brackets 19 mounted on the frame 1 with mounted on pivoting spring-loaded levers 2O with saddle-shaped rollers 21. о

To prevent the log from slipping during the working feed, it is optional.

Mounted drive roller 22 with spikes

mounted similar to the rollers 21 and receiving rotation from the actuator 8 through the gear 23. and the drive shaft 9.

The device works as follows.

A front end fed by the conveyor 2 acts on the limit switch lever 24, CMOHTnpOBfiHoro on the frame 4 in front of the cutting tools of the machine. The latter switches on the electromagnetic coupling 25 of the actuator 18. The lowering mechanism enters into operation and evenly lowers the conveyor along with the supplied log. Thanks to the addition of two movements - working filing; log and uniform lowering it in the process of feeding is achieved by centering the log along the axis of the machine.

After the completed log releases the limit switch lever, turns off electromagnetic, the clutch, returns the conveyor to the initial position to spring 26, gfi feed the next log cycle repeats.

The adjustment of the device to other diameters of the logs is carried out by the diameter adjustment mechanism 27; made in the form of well-known screw-worm jacks, two at each end of the device, controlled in pairs by two handles mounted on the output ends of the screws.

Subject invention

A device for feeding logs to woodworking machines, including a frame on which a conveyor and a clamping mechanism are mounted, characterized in that, in order to enable the centering of the log along the axis, the conveyor is equipped with a tumbler mechanism, which is made in the form of hinged four-bearing units , kinematically connected with the drive, with the upper elements of the quadrupole connected to the conveyor, and the lower elements to the frame of the device.

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