JPS6312963Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a device for automatically cutting square lumber, etc. on a lumber transport vehicle used in the lumber industry.

(b) Conventional technology Conventionally, as a corner turning device for a lumber truck used in the lumber industry, Japanese Patent Application Laid-Open No. 19502 and Japanese Utility Model Publication No. 1987-
The one published in Publication No. 123204 is known.

In the former method, a curved wooden return member is attached to the front end of the slide table by being pivoted to the tip of a retractable rod supported by a swinging guide, and a wooden return member is attached to the rear end of the retractable rod. Move forward until the provided stopper works,
When the stopper works, it links the advance/retreat cylinder that causes the upward rotation of the wood return member, and also causes the swing guide to slide the wood return member by pushing up the tip side of the swing guide prior to the operation of the advance/retreat cylinder. This is a combination of lifting hydraulic cylinders that protrude above the sliding surface of the platform, and a curved lumber member projects onto the sliding platform and is fed forward to separate the square timber or semi-finished product from the timber support case. By rotating the wood return member upward, you can easily turn the timber or semi-finished product and securely place it into the wood support case without being hindered by the wood support case remaining in place. The pressing operation can be performed automatically.

(c) Problems that the invention aims to solve However, since the above-mentioned device feeds out the curved wood return member forward and rotates it backward to cut the material, it is difficult to cut the size, shape, and size for coarse sawing. When correcting a rough square lumber that requires correction due to incorrect angles, etc., if the rough square lumber 1, which has undergone correction sawing on the first side A, as shown in Fig. 1 of the drawing, is turned into a wood as shown in Fig. 2 of the drawing. As shown in Figure 3 of the drawing, the first surface A, which has been subjected to the corrected sawing, moves upward and no longer serves as a reference, while the roughly ground surface moves downward and hits the sliding table 2, which becomes the reference. Then, the second side (b) was revised. Therefore, there was a problem in that even if corrective sawing was performed, each surface could not be squared accurately.

Therefore, the present invention has been developed by folding the wood return member forward and
The above-mentioned conventional problems are solved by applying the corrected sawn surface of the rough square timber to a sliding table and performs the corrective sawing of the next surface using this surface as a reference.

(d) Technical means for solving the problem The present invention uses a guide fixed on the material transport vehicle between the slides of a plurality of wood support cases arranged at predetermined intervals on the material transport vehicle. A movable plate that moves forward and backward is provided, and when the movable plate is raised forward, the corner receiving part of the material is located on the sliding table, and when it is tilted back, the wooden return member stored under the sliding table is pivoted, and this The luffing means and the advancing and retreating means are linked to the wood return member.

(e) Effect The technical means described above is to correct the first surface of the rough square timber, move the rough square timber back so that its front corner corresponds to the corner receiving part of the timber return member, and then turn the timber by the undulating means. When the member is raised, the rough square lumber is lifted onto the sliding table in a forward-leaning state by the lumber return member.In this state, when the lumber return member is quickly retreated by the advancing/retreating means, the rough square lumber will roll forward due to inertia. The surface that has undergone correction sawing is placed on a sliding table and placed on top of it, and the wood is turned so that the surface that has undergone correction sawing becomes the reference for the next correction sawing.

(F) Example The present invention is carried out as shown in Figures 4 to 6 of the drawings. In Figure 4, 2 is a material transport vehicle;
A plurality of sliding stands 3 are attached to the upper surface at predetermined intervals, and on these sliding stands 3, a lumber support case 5 which is moved forward and backward by a walking machine 4 is placed.

Reference numeral 6 denotes a guide attached to the material conveying vehicle 2 between the sliding tables 3, which is installed parallel to the sliding table 3 and lower than this. A movable platen 8 which is divided into two parts and connected by connecting rods 7, 7 is supported.

9 is a shaft 10 whose tip end is connected to the front part of the moving plate 8 mentioned above.
As shown in FIGS. 5 to 8 of the drawings, this is a wooden return member with a corner receiving part a for receiving the front corner of the rough square timber 10 on its upper surface, and a lower part for holding the roller in the undulating means to be described later. A rolling surface 11 is provided, and a stopper 12 is attached to the rear side, and when this wooden return member 9 is raised forward, it slides so that the corner receiving part a is located slightly higher than the top surface of the sliding table 3. When the table 3 is tilted upward and tilted backward, the wood return member 9 is stored under the sliding table.

Reference numeral 13 denotes a lever serving as a means for raising and lowering the wood return member 9, and is formed in an L shape, the intermediate portion of which is attached to the movable plate 8 with a shaft 14, and the front end engaged with the rolling surface 11 of the wood return member 9. A mating roller 15 is attached, and the rod 17 of the cylinder 16 attached to the rear movable plate 8 is connected to the rear end, and when the rod 17 moves forward, the wood return member 9 is raised up, and when it retreats, the wood return member 9 falls down. It is arranged like this.

Reference numeral 18 denotes a cylinder as a means for advancing and retracting the wood return member 9. Its rear part is fixed to the rear end of the guide 6, and a rod 19 is connected to the rear moving board 8, so that the movement of the wood return member 9 by the advancement of the rod 19 The wood return member 9 is held at the initial position and moved toward the wood support case 5 by retreating.

In the device shown in the above example, the size, shape,
As shown in Figure 5 of the drawing, when a rough square timber 10 with an inaccurate angle is subjected to correction sawing on the first surface A, and when attempting to perform correction sawing on the second surface using this as a reference, the rough square timber 10 is When the front corner is moved so as to correspond to the corner receiving part a of the wood return member 9 and the lever 13 is rotated by the cylinder 16 in the direction of the arrow in FIG. 7, the roller 15 moves the rolling surface 11 backward. Since it rolls and raises the return member 9 as shown in the figure, the rough square timber 10 is tilted forward onto the sliding table 3 with its front corner supported by the corner receiving part a.

Therefore, when the movable plate 8 is pulled rearward by the cylinder 18, the lumber return member 9 supports the rough square timber 10 and retreats, as shown in FIG. The rough square timber 10 on the return member 9 rotates in the direction of the arrow due to the action of inertia, and as shown by the dashed line in the same figure, the first surface A, which has been subjected to a modified sawing, hits the sliding table 3. At this time, when the wood support casing 5 is located at the location shown in FIG. 8 of the drawings, the wood support casing 5 hits the receding rough square timber 10 and serves to assist the rotation of the rough square timber 10.

Once the rough square timber 10 has been turned in this way, when the timber turning member 9 is brought down by the cylinder 16 and stored under the sliding table 3, the rough square timber 10 slides on the first surface A which has been subjected to the correction sawing. Since the sawing of the second surface will be carried out using this surface as a reference, which is in contact with the table 3, the wood return member 9 is returned to its original position using the cylinder 18, the wood support case 5 is extended, and the rough square lumber 10 is supported on it. If the second side is then corrected, the second side will be corrected at right angles to Figure 1, so if the rough square lumber 10 is turned back as described above, the correction will be made. By constantly applying the sawn surface to the sliding table, it is possible to carry out correction sawing of the square timber using this as a reference surface.

(e) Effects of the invention In this invention, when one side of the square timber is modified, it is received by the wood return member and rotated forward.
Since it is possible to always place the surface that has been corrected on the sliding table and perform correction sawing on the next surface using this surface as a reference, it is possible to carry out correction sawing that accurately produces right angles on each corrected surface. Moreover, since the rotation of the rough square timber on the timber return member is performed by moving the timber return member using an advancing and retracting means and by inertia during movement, or by inertia and contact of the rough square timber against the timber support case, especially rotation It has the unique effect of reliable rotation without the need for any parts, and less damage to the material.

[Brief explanation of the drawing]

FIGS. 1 to 3 are explanatory diagrams of a state in which a square lumber is turned back using a conventional turning means. FIG. 4 is a plan view of a material transport vehicle employing the device related to the present invention. FIG. 5 is a side view showing an example of a device related to the present invention. FIG. 6 is a plan view of the same as above. FIG. 7 and FIG. 8 are explanatory diagrams of a state in which a square timber is turned by the same device. In the figure, 2 is a lumber transport vehicle, 3 is a sliding table, 5 is a wood support case, 6 is a guide, 8 is a moving board, 9 is a wood return member,
13, 16, 17 are raising and lowering means of the wood turning member 9, and 18, 19 are advancing and retreating means of the movable board 8.

Claims (1)

[Scope of utility model registration request] A lumber transport vehicle, a sliding base for a plurality of wood support cases arranged at predetermined intervals on the lumber transport vehicle, and a movable plate that advances and retreats a guide fixed to the lumber transport vehicle between the sliding bases; When the tip is pivoted to this movable plate and raised forward, the corner receiving part of the material will be located on the sliding table, and when tilted backward, the wooden return member stored under the sliding table and this wooden return member will be placed. A corner turning device for a material transport vehicle, characterized in that it is provided with a linked undulation means and a forward and backward movement means linked with the movable plate.