JPH072323B2 - Litter truck for sawmill - Google Patents

Description

Detailed Description of the Invention

(Field of Industrial Application) The present invention relates to a lumbering machine feed car used in the lumbering industry, and more specifically, it performs tree turning and tree turning for wood removal selection at a saw core position in a sawing machine, Immediately gripping the supporting frame with a tree enables efficient lumber removal according to the properties of the wood to perform lumber with a high commercial value.At the same time, when the wood is taper set, the movement of the supporting frame is controlled by each control means. The present invention relates to a lumber sawing machine capable of easily and accurately measuring the end diameter of lumber and performing lumber removal with good yield by using a moving means that is driven by. (Prior Art) Conventionally, as shown in FIG. 9, a material feeding vehicle 80 used for a lumber mill is mounted on a rail 81 and a drive device (not shown) in which a wire drum, a hydraulic motor and the like are combined. ), A lumbering machine (not shown) is reciprocated, and a plurality of wood supporting frames 84 having a grazing 83 are attached to a sliding base 82 on the material feeding vehicle 80 so that the wood supporting frame 84 can advance and retreat. The pinion 86 of the stepping shaft 85, in which the supporting frame 84 is laid horizontally on the material feeding vehicle 80, is meshed with the rack 87 of the supporting frame 84, and the respective wood supporting frames 84 are interlocked by the forward and reverse rotations of the stepping shaft 85. The wood support frame
A plurality of chain conveyors 88 having their bases pivotally attached are provided between the chain conveyors 84 and 84, and the chain conveyors 88 are swung by a fluid cylinder 89 so as to appear and disappear on the sliding base 82 and wood 90
After selecting the tree-taking position by pulling the wood and turning the wood, the timber 90 is fixed by the above-mentioned gluing 83, and lumber such as square lumber and plate lumber is lumbered by the band saw 91 in the lumber mill. Further, in the case of adjusting a taper set, that is, a grinder of raw wood having different diameters at the end opening and the base opening, an advancing and retracting means 92 such as a fluid cylinder which independently advances and retracts is linked to the support frame 84, and the advancing and retracting means 92 is connected. The wood support frame 84 was individually moved by the operation of. (Problems to be solved by the invention) Since the direction and position of lumber 90 are different depending on the growth state and properties of lumber 90 such as knots, attachment of lumber, particularly raw lumber, to support frame 84 of feed truck 80 At the end, an expert determines the properties of the timber 90, and positions it by turning the above-mentioned turning devices 88 and 89 so that the position most suitable for removing wood, that is, the commercial value, becomes high. After selecting, the support frame 84 is extended by the stepping shaft 85, and further,
The taper set of the wood 90 was adjusted by operating the advancing / retreating means 92, and it was fixed to the support frame 84 by the above-mentioned glare 83. As shown in FIG. 9, since it is necessary to carry out at the point a, which is different from the actual sawing path, that is, the saw core b-c, the saw core b is once checked to confirm the sawing path selected at the point a. -The wood 90 is moved to the c by the support frame 84, and the operator visually confirms at this point, and again supports the support frame.
Since it is necessary to repeat the operation of retreating 84 and correcting the tree-taking position at the point a, that is, the grinding road by the tree-turning devices 88 and 89, this preliminary work requires a huge amount of time. The work efficiency of sawing is poor. Since the wood-cutting portion confirmed at the saw core position is once again carried out at the position where the support frame has been retracted, an accurate wood-cutting feeling cannot be obtained, and lumber with high commercial value cannot be obtained with high yield. At the time of taper setting of the wood 90, since the wood support frame 84 is paid out by the fluid cylinder 92, the operator does not know the end diameter of the wood 90 having the thinnest diameter, and the operator must perform lumber with accuracy and good yield. Since the diameter must be measured each time, the work efficiency decreases. There are various problems such as. The present invention has been made in order to solve the above-mentioned problems, by turning a tree for selecting a wood removal at a saw core position in a lumbering machine, performing a wood return, and immediately grasping the wood on a wood supporting frame, Efficient lumber removal that matches the properties of wood enables high-value lumber to be processed, and when taper-setting wood, the support frames are moved by moving means that are each driven by control means. An object of the present invention is to provide a feeding vehicle for a sawmill capable of easily, quickly and accurately measuring the end diameter of wood and performing wood removal with good yield. (Means for Solving the Problem) Means of the present invention for attaining the above-mentioned object is to move a carriage that reciprocates on a rail and a sliding table on the carriage and move the mechanism by linking moving means. A plurality of wood supporting frames, a plurality of bases provided on the carriage and movable up and down by elevating means, and a frame body engaged with the bases and movable forward and backward by the advancing and retracting means, respectively. A pair of material feeding members whose bases are respectively connected to the frame by pivots, a swinging means individually linked to the pair of material feeding members, and a drive means for transferring the wood to the pair of material feeding members are provided. And a configuration of a sawing machine feed car capable of moving the pair of feeding members to and from the sliding table and moving the sawing path of the wood supported by the pair of moving means to the saw core position, To a plurality of wood support frames engaged to a slide on a trolley, which Each of them has a structure of a lumbering machine feed vehicle in which independent moving means having a servo mechanism are linked to each other, and detection means for detecting a contact position between a wood and a contact surface of a wood support frame is provided. (Operation) The present invention has the following operations with the above-described configuration. When the lumber to be lumbered is placed on the sliding base of the carriage, the frame body that pivotally supports the pair of material feeding members is moved forward by the advancing / retreating means to correspond to the lower side of the lumber on the sliding base. When the pair of material-sending members are rotated by the swinging means to lift up the wood to separate it from the slide base, and the pair of material-sending members is driven by the driving means, the wood placed on the material-sending member is As a result, it rotates or moves in any direction. At this time, the frame member is operated by the advancing / retreating means to align the sawing path of the wood with the saw core of the sawmill. When the timber can be selected and moved to the desired timber picking position by the pair of material feeding members, it is moved toward the timber when the timber support frame is operated by the moving means. Since it corresponds to the timber, it is possible to prepare lumber if it is fixed to this timber support frame as it is, and if the feeding wheel is reciprocated with respect to the band saw of the sawing machine, predetermined lumbering is performed. . The moving means for advancing and retracting the support frame has its arbor mechanism set in advance, for example, a reference distance between the saw core and the contact surface of the support frame. Also, if the wood has a tapered shape such as raw wood,
When each wood support frame is moved in series by a single moving means, the first support frame that reaches the original mouth is stopped by the detection of the detection means, and the support frames correspond in sequence along the taper of the wood. Then, by stopping the supporting frame that is in contact with the thinnest end opening, the actual measured value can be obtained by comparison with the preset reference value. It can be fed to advance the support frame and saw lumber. (Embodiment) Next, an embodiment of a material feeding vehicle for a sawmill according to the present invention will be described with reference to the drawings. In FIGS. 1 to 4, A is a feeding vehicle used in a sawing machine (not shown) for sawing the timber 1 to a predetermined size.
2. A dolly 3 to be mounted on 2, a sliding base 4 mounted on the dolly 3, a wood support frame 5 engaged on the slide base 4, and a moving means 6 for moving the wood support frame 5. , And the rotating means B of the wooden piece 1 basically. The trolley 3 is formed in a predetermined shape according to the length of the wood 1 to be processed, and a plurality of sets of wheels 7 and 7 reciprocating the rails 2 and 2 are supported below the rails 2 and 7 at predetermined intervals to support a wire drum or a hydraulic motor. A traveling device (not shown) in which the above is combined is linked to the support shaft 8, and the operation of the traveling device drives the support shaft 8 in the forward and reverse directions to reciprocate the carriage 3 with respect to the sawmill. A plurality of sliding bases 4, for example three, are placed in parallel on the carriage 3 at a predetermined interval, and the wood supporting frames 5 moving forward and backward in the direction orthogonal to the traveling direction of the carriage 3 are engaged with the upper parts thereof. is there. Then, the wood support frame 5 is provided with, at the top and bottom thereof, the screech 9, 9 operated by a hydraulic cylinder (not shown) or the like, and the wood support frame 5 is driven by being hammered into the wood 1. As shown in FIG. 4, the moving means 6 has a screw piece 10 for fixing to the lower portion of the wood supporting frame 5 and a servo mechanism connected to one end of a screw shaft 11 screwed to the female screw piece 10. That is, the so-called servo motor 12 is provided, and the power supply to the servo motor 12 advances and retracts the support frame 5 holding the wood 1. The moving means 6 sets a reference position between the band saw 13, that is, the saw core and the contact surface 5a of the supporting frame 5 in advance, and compares the moving amount of the supporting frame 5 with the reference value by the rotation of the servo motor 12. The size of the wood gripped by the glazing 9 can be instantaneously measured by the above calculation, and desired timber cutting or board cutting can be performed with good yield based on the measured value. Then, the detecting means S is linked to the moving means 6, and the supporting frame 5 is moved forward to the wooden piece 1 on the slide base 4 by the moving means 6.
It detects when the front surface of the support frame 5 comes into contact with the wood 1, and an encoder (not shown) associated with the drive shaft 12a of the servomotor 12 is used to contact the support frame 5 with the wood 1. By the contact, a signal generated when the drive shaft 12a receives a rotational load equal to or more than a preset value is transmitted to the control means C, and thereby the rotation of the servo motor 12 is stopped. The movement is stopped immediately. Further, the detecting means S may be of any type such as a photoelectric tube type, a proximity switch type, or a limit switch type provided in correspondence with the contact surface of the support frame 5. The servo motor 12 may be of any type selected from hydraulic, electric and mixed electro-hydraulic types. Further, the servo motor 12 is not limited to a servo motor, and a stepping motor, Of course, a motor with a brake or a general motor in which a servo mechanism is linked can be used. The rotating means B of the wooden piece 1 is a base 14 provided on the carriage 3, a frame body 15 engaged with the base body 14, and a pair of material feeding members 16 and 16 whose bases are pivotally attached to the frame body 15. Composed of and. A plurality of bases 14 are mounted on the carriage 3 between the slide bases 4 at intervals, and horizontal guides 18, 18 are attached to both sides of the bases 14, and the lifting means 17 allows the bases to be raised and lowered to a predetermined height. is there. The elevating means 17 allows a pair of material feeding members 16, 16 to be described later to be retractable on the slide base 4, and connects the rear side of the base 14 and the carriage 3 with a hinge 19 to lower the front side. The fluid cylinder 17a is attached to the dolly 3, and its rod 17b is used as a base.
The lower surface of 14 is brought into contact with the lower surface of the rod 14 and the rod 17b is extended to pivot upward about the hinge 19. The raising / lowering of the base 14 by the raising / lowering means 17 is not limited to the rotary type. For example, although not shown, a pair of fluid cylinders of The rod 14 may be linked to raise and lower the base 14 linearly by the operation of this cylinder. Also, as the operating member, other than the fluid cylinder, a known screw type, cam type, link type, etc. Anything can be selected as long as it gives exercise to the base 14. The frame 15 is engaged with the base 14 so as to be movable back and forth. The lower guide strips 20 and 20 are fitted to the horizontal guides 18 and 18 of the base 14, and the carriage 3 is moved to the rear side. The advancing / retreating means 21 such as a provided fluid cylinder is linked to operate the rod 22 to reciprocate the frame body 15 between the vicinity of the saw core 13 and the vicinity of the intermediate portion of the slide base 4. The advancing / retreating means 21 may be of a rack and pinion type, a screw type or the like. The pair of material-sending members 16 and 16 are attached to the support plates 23 and 23 to the front and rear of the shaft 2.
Using an endless chain that supports 4,25, one of the axes
The 24 is pivotally attached to the frame body 15, and the swinging means 26 and 27 allow the material feeding members 16 and 16 to rotate in the range of about 90 degrees. Then, to the pivot 24 in the pair of material feeding members 16, 16.
By connecting the driving means M such as a hydraulic motor which is rotated in the forward and reverse directions and driving the pair of material feeding members 16, 16 in an interlocking manner, the lumber 1 supported thereby can be moved in one direction or in the opposite direction. Rotate or move to. The rocking means 26, 27 use a hydraulic type hydraulic cylinder, and the ends of the cylinders 26, 27 are pivotally supported on the rear side of the base, and their rods 28, 29 are supported by the support plates 23, 27. By connecting to the arms 30 and 31 attached to 23, and rotating the support plates 23 and 23 around the pivot 24 by operating the cylinders 26 and 27, the material feeding members 16 and 16 can be rotated at arbitrary angles. Rotate to. The rocking means 26, 27 may be of rack and pinion type, screw type, or the like. In FIG. 1, reference numeral 32 denotes an operation panel, on which an operator rides on a step 33 on the trolley 3 and gives a command to the operation panel to perform work such as stepping of lumber. Next, an example of the operation of the rotating means B of the wooden piece 1 in this embodiment will be described with reference to FIGS.
6a to 6e and the sponge material will be described with reference to FIGS. 7a to 7e.

【log】

As shown in FIG. 5a, when the base 14 is adjusted to an appropriate position according to the size of the log 1, that is, when the pair of material feeding members 16 and 16 hold the log 1, the grinding road of the log 1 is almost After advancing to a position that coincides with the saw core 13, the log 1 is loaded onto the slide base 4. When the rocking means 26, 27 are operated to rotate the pair of material feeding members 16, 16 in a substantially V-shape, as shown in 5b, they float above the slide base 4. When the driving means M of the material-sending members 16 and 16 is operated in this state, the log 1 mounted thereon rotates in one direction, so that the sawing surface of the log 1 corresponding to the saw core 13 is determined. Then, as shown in 5c, the base 14 is moved back and forth again to align the ground surface with the saw core by a marking means (not shown) such as a laser beam irradiated on the upper surface of the log 1 Operate the advancing / retreating means 21 while watching. Next, each of the wood support frames 5 is moved forward by the independent moving means 6 and brought into contact with the log 1, and the feeding out of the support frame 5 is stopped by the detecting means S thereof. As shown in the figure, the end opening and the base opening are aligned with each other, and as shown in FIG. 5d, the log 1 is gripped by the support frame 5 by the braces 9, 9, so that the swinging means 26 and 27 are operated to open the pair of material feeding members 16 and 16 at approximately 180 degrees and to be buried from the slide base 4. Further, as shown in FIG. 5e, the pair of material feeding members 16 and 16 are operated to move the frame body 15 backward by operating the advancing / retreating means 21 to separate the outer material feeding member 16 from the grinding path of the band saw 13. Then, the feeding vehicle A is run to the sawing machine to perform sawing. Then, the log 1 which has been ground on one side is to be lumbered on the other side. From the state shown in FIG. 5f, the frame 15 is extended and the center of the pair of feeding members 16, 16 is shown in FIG. 5g. As shown in FIG. 5h, at the same time, the pair of material-sending members 16, 16 are pivoted in a substantially V-shape to support them. Then, while driving the material feeding members 16 and 16 to rotate the log 1 by 180 degrees, the log 1 that has been ground in the previous process is moved to the front surface of the support frame 5 that has been moved based on a preset step amount. Are contacted with each other, and as shown in FIG. 5i, the logs 1 and 9 are hammered into the log 1 again to be gripped by the support frame 5. As shown in FIG. 5j, the pair of feeding members 16 and 16 operate the advancing / retreating means 21 to retract the frame body 15, thereby separating the outside feeding member 16 from the grinding path of the band saw 13. , The feeding vehicle A is run to the sawmill to perform sawing on the second side.

[Square wood]

First, as shown in FIG. 6a, the base 14 is raised to bring the material feeding members 16 and 16 into a position substantially corresponding to the upper surface of the slide base support, and the supporting frame 5 is moved forward by the moving means 6 to move the square bar. Abut on the rear surface of 1. By operating the swinging means 26, 27, as shown in 6b, the pair of material feeding members 16, 16 are rotated in an inverted L shape to the material 1 for feeding the square material 1.
Hit 6,16. In this state, when the swinging means 26, 27 of the material-sending members 16, 16 are operated to rotate the square timber 1 as shown in 6c, the sawing path is changed with respect to the band saw 13 as shown in 6d. To be done. Further, if the base 14 is retracted in this state, the timber 1
Is pressed by the material-feeding members 16 and 16 and is brought into close contact with the contact surface of the support frame. At this time, the braces 9 and 9 are driven into the square 1 to be held by the support frame 5. Then, as shown in FIG. 6e, the swinging means 26 and 27 are operated to open the pair of material feeding members 16 and 16 at approximately 180 degrees and bury them from the slide base 4, while moving the advancing and retracting means 21. By manipulating the frame body 15 to retract it, the outer material feeding member 16 is separated from the sawing path of the band saw 13. Therefore, the feeding vehicle A is made to travel to the sawing machine to perform sawing on one side of the square timber 1. The lumber 1 having a desired size is obtained by sawing two faces, three faces, and four faces in the order described above.

[Taiko material]

First, as shown in FIG. 7e, the base 14 is raised to open the pair of material feeding members 16 and 16 by 180 degrees at a position substantially matching the upper surface of the slide base 4, and the advancing and retracting means 21 is used. The center of the pair of material feeding members 16, 16 is moved to the vicinity of the saw core 13. Then, the pair of material-sending members 16, 16 are driven by the driving means M, and the carrier material 1 supported by this is temporarily moved to the front material-sending member 16, that is, the sawmill side, as shown in FIG. 7a. Transfer to. Then, by operating the swinging means 27, as shown in FIG. 7b, the material feeding member 16 on the rear side is raised substantially vertically so that these material feeding members 1
Make 6 and 16 almost right angles. As shown in 7c by operating the swinging means 26, 27, the pair of material feeding members 16, 16 are rotated in an inverted L shape to reverse the rod material 1, and its center of gravity is fed to the rear side. 7d when moved to member 16
As shown in the figure, the pair of material feeding members 16 and 16 are opened 180 degrees, and the sputter material 1 is placed on the slide base 4. In this state, the frame 15 is operated by the advancing / retreating means 21 to move the sawing material 1 so that the grinding path is aligned with the saw core 13,
14 is lowered to bury the feeding members 16 and 16 from the slide base 4, and as shown in FIG. 7e, the braces 9 and 9 are driven into the saw material 1 and held by the support frame 5. Then, by operating the advancing / retreating means 21 to retract the frame body 15, the outer material feeding member 16 is separated from the grinding path of the band saw 13. Therefore, the feeding vehicle A is run to the sawing machine to perform sawing on one surface of the lumber 1. According to the wood 1 to be processed as described above, if the rotating means B of the wood 1 and the wood supporting frame 5 are combined and the moving operation is performed, it is possible to feed any material regardless of the shape of the wood 1. . (Effect of the invention) As described above, in the lumber sawing machine related to the present invention, since the lumber feeding member supporting the lumber can be extended to the vicinity of the saw core position by the advancing / retreating means, it is possible to lumber lumber. Since it is possible to make an important decision on tree cutting while making the saw core position and the grinding path almost coincident, the operator can accurately check the cutting path and operate the tree cutting with a more reliable feeling. As a result, the sawn timber has a high commercial value and a product with a good yield can be obtained. In addition, since it is possible to determine the tree removal and turn the tree with the ground path aligned with the saw core position, after determining the tree removal as in the conventional case, the support frame is once retracted and the tree is turned. Since the labor can be saved, the preparation of the lumber, that is, the work of gripping the lumber on the support frame can be performed easily and in a short time, and the working efficiency of the lumber is significantly improved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lumber mill feed vehicle according to the present invention, and FIG. 2 is a side view of the same. FIG. 3 is a plan view showing a part of the above. FIG. 4 is a side view showing a moving means system of the supporting frame of the above. FIGS. 5a to 5j are explanatory views showing a state in which a log is turned around using this device. FIGS. 6a to 6e are explanatory views showing a state in which the above timber is rotated around a tree. FIGS. 7a to 7e are explanatory views showing a state in which the above wood material is turned back. FIG. 8: is explanatory drawing which shows the state of the taper set of the wood same as the above. FIG. 9 is a side view showing a conventional feeding vehicle for a sawmill. In the figure, 1 is wood, 2 is rail, and 3 is a bogie. The support is a sliding base. 5 is a wood support frame. 6 is a moving means. 14 is a base. 15 is a frame.
16 is a material feeding member. 17 is an elevating means. 21 is an advancing and retracting means. 26 and 27 are swinging means. M is a driving means. C is a control means. S is a detection means.

Claims (2)

[Claims] 1. A trolley that reciprocates on a rail, a plurality of wood support frames that are engaged with a slide table on the trolley and can be moved by the linkage of moving means, and an elevating means provided on the trolley. A plurality of bases that can be moved up and down by means of a frame, a frame that is engaged with the bases and that can be moved back and forth by advancing and retracting means, and a pair of material feeding members in which the bases are connected to the frames by pivots, respectively. Swinging means individually linked to the pair of material feeding members,
It comprises drive means for transferring the wood to the pair of material-feeding members, and causes the pair of material-feeding members to project and retract from the slide stand, and saws the wood-cutting path supported by the pair of material-feeding members. A material feeding vehicle for a sawmill, which is capable of moving to a core position. 2. A single moving means having a servo mechanism is linked to a plurality of wood supporting frames engaged with a sliding table on a carriage, and the wood and the contact surface of the wood supporting frame are brought into contact with each other. The material feeding vehicle for a sawmill according to claim 1, further comprising detection means for detecting a position.