FI122991B - Poikittaissyöttölaitteisto - Google Patents

Description

FIELD OF THE INVENTION Field of the Invention The invention relates to apparatus for transverse feeding of elongated wood pieces having a fixed frame and stepped carrier surfaces for stepwise lifting of wood articles from the first, lower position to the upper, lower to upper position, and from which to 10 is inclined with respect to the vertical.

In addition, the apparatus comprises rotatable lifting members arranged in the same axis adjacent to the bearing surfaces and in the lifting direction for lifting the wooden pieces from one bearing surface to another, and actuators for rotating the lifting members adapted to rotate the lifting members at least substantially the same speed.

PRIOR ART 20 Such transverse feeding apparatuses are used e.g. in the woodworking industry, for example, for individual transverse batching of logs.

Fl patent 94743 discloses a transverse feeder suitable for such a purpose, whereby the logs can be lifted individually in an oblique direction from the lower level to the upper level. Ko. the patent device has two movable adjacent stepped lifting members which form two adjacent handrail bearing surfaces, wherein the actuator moves the lifting members back and forth with respect to the fixed body and each other, and wherein the reciprocating movement of the moving parts is adapted to lift the logs periodically to a higher level. Ko. in the patent, the movable parts are coupled to each other by a crank mechanism which converts the rotary motion of the drive actuator so that the transverse movable parts of the device always move in the opposite direction to each other.

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Such a device is complicated and expensive due in particular to the crank mechanism therein.

U.S. Patent No. 5,423,417 to U.S. Patent No. 5,423,417 discloses a kit kit with a fixed frame and stepped carrier surfaces for stepwise lifting of wood pieces from the first, lower position to the second, higher level, from which the top is downwardly of the conveyor. level si-5 with the main lifting direction inclined to the vertical. In addition, the apparatus comprises rotatable lifting members arranged adjacent to the bearing surfaces in the same axis and in the lifting direction for lifting the wooden pieces from one bearing surface to another, and actuators for rotating the lifting members adapted to rotate the lifting members at least substantially the same speed. The lifting members are circular sector-shaped and thus asymmetrical, whereby lifting always takes place only in a certain position of the lifting member, whereby the equipment is relatively complicated and in particular the unfavorable shape of the lifting members does not achieve good lifting efficiency.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate the disadvantages of the prior art and to provide a completely new type of cross-feed for lifting elongate wood-backed parts, especially logs.

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The invention is based on pivot-like rotatable lifting members, which thus have a hub and symmetrically arranged pivot parts.

Thus, the lifting takes place at each of the leg portions and thus in several positions of the lifting members, whereby the apparatus achieves a relatively simple construction and good lifting efficiency compared to the prior art.

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r-i. Detailed features of the invention are set forth in the accompanying drawings.

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The claims, especially the independent claim 1.

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£ Brief description of the figures

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In the following, the invention will be explained in more detail by way of example with reference to the accompanying drawings, in which Fig. 1 is a side elevational view of a friction feeding apparatus according to the invention.

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Description of Preferred Embodiments

Fig. 1 shows a transverse feeding apparatus for feeding elongated wood pieces, in particular round wood pieces such as logs 100, having a fixed frame 101 with stepped support surfaces 102 and subsequent oblique guide-transport surfaces 103 for lifting the wood pieces from the first lower position, for example, a rolling plane 105 from a peeler 104, to a second, higher plane, a rolling plane 106. Since the upper plane 106 is displaced in the longitudinal direction of the conveyor so that the main lifting direction 10 is inclined relative to the vertical.

In addition, the apparatus has adjacent bearing surfaces axially 107 adjacent to the shafts, e.g., at 1 m intervals, and a few, e.g., in Fig. 1, a series of rotatable pivoting wheels 108, each of which has four consecutive pivots, e.g. 1, four levers 109 arranged at regular intervals to wheel hub 110 for lifting logs 100 from one support surface to another, and actuators, e.g., electric motor driven chain drive 111 connecting all wheels to rotate the idler wheels at the same speed.

1 The forks are arranged such that each log 100 fits within one of the forks, and the joint 112 between the forks and the hub may be rounded.

It will be apparent to one skilled in the art that various embodiments of the invention are not limited to the above example, but may vary within the scope of the following claims. The actuators may also be a motor driven PTO drive with all wheels connected to rotate the pivoting wheels at the same speed, or each shaft may also be provided with its own frequency converter-controlled electric motor, the motor being driven at the same speed by the synchronized drive frequency.

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Claims (6)

1. Device for cross-feeding of elongated wooden pieces (100), the flanged device [is arranged so that the wooden pieces are lifted from a first, lower position up to a second, upper position, and out of white positions the upper position is then moved in the longitudinal direction of the conveyor with with respect to the lower position that the main lifting direction is oblique in relation to the vertical direction, and in which device is located coaxially next to the support surfaces and in the lifting direction, rotatable lifting parts for lifting the wooden pieces from one carrier to another for attachment to another and rotating the lifting parts, which drive means is at least substantially arranged to rotate the lifting parts at the same speed, wherein the rotatable lifting parts are star wheels (108) with outer parts (109) arranged at fixed intervals on the wheel hub (110), characterized in that the lifting parts are arranged to overlap so that the piece of wood is always received from the previous head portion to a head portion of the next lift section, and the drive device is an electric drive where each of the shafts has its own speed control operation, such as a frequency converter, the motors being able to be rotated at the same speed by means of synchronized speed control drives. Device according to claim 1, characterized in that between the lifting parts there is a body part (102) at which a short contact with the upper surface of the body part is arranged between the end parts. 3. Device according to claim 1 or 2, characterized in that the drive device o is a motor-driven mechanical transmission arrangement (111) which CvJ ^ connects all the wheels to rotate the star wheels at the same speed. ° 30 o Apparatus according to claim 1, 2 or 3, characterized in that the headlands are so | arranged that a cape gap accommodates at least one piece of wood (100). CvJ co 5. Device according to claim 1, 2, 3 or 4, characterized in that the caplets are arranged symmetrically on the periphery of the hub. CVJ Device according to claim 1, 2, 3, 4 or 5, characterized in that the joint area (112) between the head and the hub is rounded.