JPS6254641B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an automatic rotation device for sawn timber used in the lumber industry. More specifically, the present invention relates to a device that allows sawn material on a sliding table to be rotated freely regardless of its shape so that a desired sawing position can be adjusted to a saw position.

Previously, Jikosho used it as an automatic rotation device for sawn timber on transport vehicles.
The one published in Publication No. 39-26036 is publicly known. In this method, a chain with a claw is installed on the material transport vehicle so that it can be raised and lowered, and the sawn wood on the sliding table is moved onto the chain with the claw, and the chain with the claw placed outside the material transport vehicle is moved. By pressing the sawn wood against the sawn wood and interlockingly rotating the chain with double claws, it was possible to press the sawn wood against the wood support case and rotate it, and it was possible to press the sawn wood against the wood support case and rotate it.
It was impossible to turn wood from materials that had been sawn on more than one side.

The present invention has been made in response to this current situation, and includes a wood turning chain in which a pair of chains are connected by a pivot, and by rotating these chains horizontally, in a rectangular shape, in an L shape, in a horizontal shape, etc., logs can be cut. The purpose of the present invention is to provide a device that can freely rotate materials that have been ground on more than one side.

Next, an example of implementation of the apparatus related to the present invention will be explained based on the drawings.

In Figures 1 and 3 of the drawings, 1 is a material transport vehicle;
Several sets of wheels 3, 3 rolling on rails 2, 2 are attached at predetermined intervals to the lower part, and a plurality of sliding stands 4 are attached to the upper surface.
are provided at a predetermined interval, and on these sliding tables 4, wood support cases 5 are mounted separately, and each wood support case 5 is provided with wood gripping means 6, 6. Reference numeral 7 denotes an elevating base provided between each sliding table 4, which is movably supported by a diagonal guide 8 fixed to the material transport vehicle 1. 9, 9 is a pair of chains, and the pivot 1 is supported by the lifting base 7.
0 to form a wood chain,
Lifting means 12, 12 such as hydraulic cylinders are linked to each support frame 11, 11, and these means 12,
12, the pair of chains 9, 9 are horizontal,
It is made to freely deform into an L shape, a square shape, etc., and is also rotated in the same direction by a motor 13.
Reference numeral 14 denotes a lowering means for the lifting base 7, which uses a hydraulic cylinder or the like to position the wood turning chain above the sliding surface of the sliding table 4 when rotating the sawn timber, and when not in use. The wood turning chain is operated so as to be positioned below the sliding surface of the sliding table 3. In FIG. 4, reference numeral 15 denotes a sawn timber feeding member, which is provided at a location where sawn timber is loaded onto the timber transport vehicle 1.

In the apparatus configured as described above, the lumber truck 1 is placed in the lumber loading position as shown in FIG. The pair of chains 9, 9 constituting the rotary chain are positioned on the sliding surface of the sliding table 4 as shown in FIG. When raised, the chains 9, 9 deform into a square shape as shown in Figure 6 and stably support the log.
In this state, when the motor 13 rotates the pair of chains 9, 9 in the direction in which the sawn timber is desired to be rotated, the sawn timber is rotated in the desired direction as shown in Figure 7 by the rotation of the chains 9, 9. When the desired sawing position of the sawn material comes to face the band saw (not shown in the drawing) due to this rotation, the chains 9, 9 are stopped, and the elevating base 7 is lowered by the elevating means 14, and the chains 9, 9 are The sawn timber to be supported is lowered onto the sliding table 4 as shown in Figure 8 of the drawings, the wood support housing 5 is extended and applied to the back of the sawn timber, and the sawn timber is gripped as shown in Figure 9 of the drawings. 6, 6, and if the sawn timber is supported by the timber support casing 5, each timber support casing 5 is set as shown in drawing 1 according to the sawn timber.
As shown in Figure 0, operate the desired sawing line to match the extension line of the band saw, then connect the pair of chains 9 and 9.
is returned to the horizontal position as shown in FIG. 11 by the undulating means 12, 12, positioned below the sliding surface of the sliding table 4, and the wood support case 5 is let out. At the same time, if the lumber transport vehicle 1 is moved forward, the sawn timber will be sawed in the shape shown in FIG. 1 as shown in FIG. 12 of the drawing.
When the sawing and splitting of the first surface is completed in this way, the pair of chains 9, 9 are moved in a horizontal state above the sliding surface of the sliding table 4, and moved in the retreating direction in conjunction with the retreating of the wood support case 5. When the sawn timber is rotated at the same speed, it is returned to the center of the sliding table 4 as shown in Figure 13 of the drawing. After raising the chain 9 vertically and applying it to the sawn surface of the sawn timber, when the pair of chains 9, 9 are rotated in conjunction with each other to the left in Fig. 15, the sawn timber is It is held in place and rotated 90 degrees so that the ground surface is facing down. Therefore, drawing number 15
As shown in the figure, after laying down the upright right chain 9 horizontally as shown in Fig.
6, and when the sawn timber is supported by the timber support case 5,
Lower the pair of chains 9, 9 below the sliding surface of the sliding table 44 as shown in FIG. As described above, the second side of the sawn timber is sawn and becomes the state shown in FIG. 18. At this time, the horizontal chains 9, 9 are positioned above the sliding surface of the sliding table 4, and when the horizontal chains 9, 9 are rotated in the backward direction in conjunction with the retreat of the wood support case 5, the sawn timber is Drawing 1st
As shown in FIG. 9, it is returned to the center of the sliding table 4. Then, pull out the wood grips 6, 6 from the sawn timber, and as shown in Figure 20 of the drawing, set the left chain 9 upright, apply it to the second sawn surface of the sawn timber, and interlock the chains 9, 9 to the left. When it is rotated 90 degrees in the direction, the sawn timber is turned so that the second sawn surface is facing down as shown in Figure 21.
At this time, if the right chain 9 is returned to the horizontal position as shown in FIG. 22, and the wood grips 6, 6 are hit into the sawn timber, the chains 9, 9 are lowered below the sliding surface of the sliding table 4. Since the sawn timber is supported by the wood support case 5, the chains 9, 9 are lowered below the sliding surface of the sliding table 4 as shown in Figure 23 of the drawing, and the wood support case 5 is let out to make the third saw line. When the lumber transport vehicle 1 is moved forward in line with the bandsaw, the third side of the sawn lumber is sawn. After finishing sawing and splitting the third surface, raise the horizontal chains 9, 9 onto the sliding surface of the sliding table 4, and move these chains 9, 9 in the backward direction of the wood support case 5 at the same speed. When rotated, the sawn wood is returned to the center of the sliding table 4 as shown in Figure 25 of the drawings, so the wood grips 6, 6 are removed from the sawn wood and the left chain 9 is moved as shown in Figure 26 of the drawings. When the sawn material is placed upright and applied to the third sawn surface of the sawn timber, and the chains 9 and 9 are rotated to the left in conjunction with each other, the sawn material is turned so that the third sawn surface is facing down, as shown in Figure 27 of the drawing. and align the fourth sawing line with the band saw. Therefore, at this time, the chain 9 on the right side is brought down as shown in Fig. 28, and the wood grips 6,
6, fix it to the wood support case 5, and connect the chain 9,
9 is lowered below the sliding surface of the sliding table 4, the lumber support case 5 is let out, the fourth sawing line is aligned with the band saw, and the lumber transport vehicle 1 is advanced. It is a product that is sawn on all four sides and becomes a square lumber product.

The apparatus according to the present invention connects a pair of chains by a pivot to form a wooden chain, and undulates the pair of chains by a undulating means to form a horizontal, rectangular, or L-shaped chain.
Since the log can be transformed into a shape or shape and rotated by being positioned on the sliding surface of the sliding table by the lifting means, the log placed on the sliding table can be transformed into the shape of a pair of chains. First, align the first sawing line with the saw and saw the material. Once the first side is sawn, turn the pair of chains into an L shape and rotate them so that they are square. Align the sawing line of No. 2 with the saw and saw the second side. Once the second side has been sawn, use the same operations as described above to turn the sawn material twice at 90 degrees each time to make the third side. The first and fourth sides are sawn in order,
The operation for obtaining square lumber products can be performed quickly without requiring any manual labor, saving labor, increasing efficiency, and increasing safety.Moreover, the pair of chains in this device can be moved by lifting means when not in use. It is conveniently held under the sliding surface of the sliding table so that it does not prevent the material from being fed out or pulled back by the wood support casing, and is not damaged by the impact of the sawn wood when feeding the sawn wood into the wood support casing. Therefore, it not only has a unique effect as a device for efficiently and safely cutting corners from logs, but also can be conveniently used for other purposes such as large-splitting logs.

[Brief explanation of the drawing]

FIG. 1 is a front view of a material transport vehicle implementing a device related to the present invention. FIG. 2 is a side view showing this device. Third
The figure is a plan view of the same as above. FIGS. 4 to 29 are explanatory diagrams showing the rotation state of sawn timber from logs to square timber products using this apparatus in an exploded manner. In the figure, 1 is a lumber truck, 4 is a sliding table, 5 is a wood support case, 7 is an elevating base, 9, 9 is a chain, 10 is a pivot, 12, 12 is a lifting means, and 14 is an elevating means.

Claims (1)

[Claims] 1 A plurality of lumber chains, each consisting of a pair of chains connected by pivots between the sliding bases of a plurality of lumber support cases provided at predetermined intervals on a material transport vehicle, are supported by an elevating base. A sawmill for a timber transport vehicle, characterized in that a lifting means is linked to each of the lifting bases, and lifting means for positioning the wood cutting chain above and below a sliding surface on a sliding table are linked to the lifting base. Automatic material rotation device.