JPH06206629A - Log both end surface truing-up machine - Google Patents

Abstract

PURPOSE:To reduce labor by processing truing up of both end surfaces of a stacked log group where thinning timbers or comparatively small diameter timbers are collected and subdivided, in a large quantity by mechanization as well as to eliminate wasteful use of work time or the like truing-up by manpower CONSTITUTION:A log both end surface truing-up machine is composed of sensors 11 and 12 to detect whether or not a log group 1 is stocked in a prescribed position and truing-up pushing plates 5 and 6 to slide in a lateral direction by hydraulic cylinders 7 and 8 to true up both end surfaces of the log group l.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] With the recent diversification of demand for timber, in particular, logs, which are raw materials for small-diameter trees, are processed together as a bundle of several tens of logs having a fixed length. However, if both ends of a group of logs are not aligned and are not evenly aligned, the cut ends of the logs will be identified, the product value in the timber market will be great, and the automatic sawing machine This is a manual preparatory work that inevitably occurs due to the convenience of incorporation, and the present invention is a machine that saves such preparatory work.

[Prior Art] Conventionally, since one end or several ends were put together by hand to align both end faces, time and labor were spent on this work.

[Problems to be Solved by the Invention] It is a problem to be solved to mechanize the alignment of both end faces of the log group to save labor and to process a large amount to eliminate waste of work time due to input.

[Means for Solving the Problems] The operation of the log edge aligning machine of the present invention will be described with reference to the drawings. Logs 1 having a relatively small diameter such as collected thinned wood are placed on sleepers 2 as shown in FIG. It is usually piled up on top of each other, but as shown in Fig. 1, most of the piles are out of alignment in the direction of the length and need to be re-worked to align both end faces. And The log both-sides arranging machine of the present invention is a machine capable of automatically and surely performing this work. The log pile shown in FIG. 1 is scooped up on the arm 3 of the forklift 4 as shown in FIG. A group of logs is inserted while being placed on the fork lift arm 3 between the alignment portions X to Y of the log both-ends aligning machine of the present invention shown in FIG. 4, and is inserted between X and Y in the drawing for explaining FIG. Aligning push plates 5 and 6 for aligning both end faces of the log group are provided on both end sides of the log group, and these aligning push plates are structured to be slidable laterally by hydraulic cylinders 7 and 8, respectively. In addition, sensors 11 and 12 for detecting whether or not the log group is loaded at a predetermined position are provided between the aligning and pressing plates on both sides, and the sensors 11 and 12 are incorporated in an electric circuit as a driving condition of the hydraulic cylinder. After confirming that the log group is in a predetermined position by the sensors 11 and 12, the aligning push plate 5 horizontally slides in the direction of arrow A, and the aligning push plate 6 horizontally slides in the direction of arrow B to align the unevenness of the log group. . In FIG. 4, 9 is a hydraulic pump.
And sending hydraulic pressure to drive 8 hydraulic cylinders,
Reference numeral 10 denotes the entire frame of the log both-sides arranging machine of the present invention, in which the equipments installed in the machine are integrated and installed. The log both-sides aligning machine of the present invention is a plate in which both end faces of a pile of collected logs are arranged with flatness from both sides toward the center in the longitudinal direction of the log with 5 aligning push plates and 6 aligning push plates. Since the logs are pressed against each other, both ends of the pile of logs are piled on the basis of the pressing faces of the 5 and 6 aligning push plates, and the logs are slid on each other to align the ends and hydraulic pressure is used as the pressing force. When both ends of the are aligned and an unnecessarily large load is applied to the hydraulic cylinder, the relief valve of the hydraulic circuit opens to maintain safety. Furthermore, the hydraulic pressure of the hydraulic circuit is detected by a pressure switch etc. to signal the end of work. As a result, the alignment push plates 5 and 6 are opened. Fig. 2 shows a state diagram in which piles of logs are aligned and then unloaded from a forklift at a predetermined place. In the figure, 1 is a log group and 2 is a sleeper.

[Brief description of drawings]

Fig. 1 is a front view of a pile of normally placed logs, where 1 is a log group and 2 is a sleeper. FIG. 2 is a front view of the pile of logs after alignment, where 1 is a log group and 2 is a sleeper. Fig. 3 shows a pile of logs on a lifted forklift arm for arranging uneven logs. 1 is a log group, 3 is a forklift arm, and 4 is a forklift body. FIG. 4 is a front view of the log both-sides arranging machine of the present invention. 1 is a log group, 3 is a fork lift arm, 5 is an aligning push plate, 6 is an aligning push plate, 7 is a hydraulic cylinder, 8 is a hydraulic cylinder, 9 Is a hydraulic pump, 10 is an entire frame,
Reference numeral 11 denotes a transmitting side sensor, and 12 denotes a receiving side sensor.

Claims (1)

[Claims] The log both-sides arranging machine of the present invention aligns both end faces of a log group of piles of thinned wood or a pile of small-sized wood collected and divided in order to align the unevenness of the log group shown in FIG. 1 in the longitudinal direction. Then, as shown in FIG. 3, the log both-ends aligning machine is scooped up by a forklift, and is inserted between the predetermined positions X to Y of the log-end-side aligning machine of the present invention shown in FIG. 4 while being put on the forklift. Is equipped with a sensor that detects whether or not the log group is loaded at a predetermined position. When the sensor confirms, the log group on the forklift arm can be laterally slid by hydraulic cylinders from both ends of the log group. A log both-ends aligning machine that has a mechanism that allows both ends of the log to be pressed toward the center of the log in the longitudinal direction to align both ends of the log group.