JPH0952202A - Long material inspection device - Google Patents

Abstract

(57) [Abstract] [Problem] To significantly reduce the labor of an operator to save labor and improve inspection efficiency. SOLUTION: Conveying means 32 for conveying a long material W in a horizontal direction and lift means 3 for vertically moving the conveying means 32.
0, a pair of clamp means 11 and 12 for pressing and holding both longitudinal ends of the long material W, and the clamp means 1.
And a rotation driving means 15 for rotating the rotating parts 1 and 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to determine the rank of a long timber such as a construction timber which has a rectangular cross section.
The present invention relates to a long material inspection device suitable for use when visually inspecting for presence or absence of scratches, blister, etc., and the like for selection.

[0002]

2. Description of the Related Art Conventionally, for example, long-sized construction timber, which has a rectangular cross section, such as a square pole, has to be sorted according to the presence / absence, size, position, etc. of scratches, ridges, etc. Is being done. When ranking long timbers, an operator manually flips or rolls the timbers one by one, and visually inspects them for presence or absence, size, position etc. Was.

[0003]

However, in the past, since a long piece of wood was manually turned upside down or rolled, it takes a lot of labor and time to carry out the inspection. There was a problem that it was easily scratched, labor was not saved, and inspection efficiency was poor.

The present invention has been made in view of the above problems, and an object of the present invention is to determine the rank and the like of a long material such as construction timber lumbered into a rectangular cross section.
When visually inspecting for presence or absence of scratches, blister, etc. and selecting, etc., the labor of the operator is reduced to save labor and improve the inspection efficiency, and moreover, the long material to be inspected is not damaged. It is an object to provide a long material inspection device that can be made difficult to attach.

[0005]

In order to achieve the above object, the long material inspection apparatus according to the present invention basically holds and rotates both longitudinal ends of a long material to be inspected. It becomes like this. More specifically, a conveying means for conveying the long material in a horizontal direction, a lifting means for moving the conveying means up and down, and a pair of clamp means for pressing and holding both longitudinal ends of the long material. And a rotation drive means for rotating the clamp means.

Preferred embodiments of the present invention include one provided with a clamp position changing means for changing the separation distance between the pair of clamp means, one in which the long member is a wood having a square cross section, and the like. To be In a preferable aspect of the long material inspection apparatus according to the present invention having such a configuration, the long material to be inspected is provided by the pair of clamp means in a posture in which the long material to be inspected is orthogonal to the conveying direction by the supply conveying means and the lifting means. It is conveyed between the two, and both ends in the longitudinal direction thereof are pressed and held by the clamp means, and in this state, the long material is intermittently rotated together with the clamp means by the rotation driving means, for example, every 90 degrees so that four surfaces sequentially come to the upper surface, Alternatively, it is continuously rotated 360 degrees at the same angular velocity, during which the operator visually inspects for the presence / absence, size, position, etc. of scratches, blister, etc., and after the inspection is completed, the long material is the clamp means. After being released from the inspection device, it is transferred from the inspection device to the outside by the lift means and the discharging transfer means.

By doing so, for example, in order to determine the rank and the like of long timber such as construction wood lumbered into a rectangular cross section, the presence or absence of scratches, blister, etc., and the like are visually inspected and selected. In this case, the labor of the worker is reduced and the labor is saved, the inspection efficiency is improved, and moreover, the long object to be inspected can be hardly scratched.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a long material inspection device according to the present invention. Long material inspection device 10 in the illustrated example
When visually selecting and checking the presence, size, position, etc., of scratches, ridges, etc., to determine the rank, etc., of a long wood W for construction, such as a square pole material, which has been cut into a rectangular cross section. As will be understood by referring to FIG. 2 as well, the feeding carrier device 50 for feeding and discharging / delivering the long wood W which is the object to be inspected before and after the material feeding direction and the discharging. Conveying device 90 and roller type lateral conveying device 97
Etc. are provided and used.

As shown in FIG. 3, the long material inspection device 10 has a distance longer than the length of the long wood W at the upper left and right ends of the support base 2 assembled in the shape of a long and narrow box frame. In this state, the clampers 11 and 12 as a pair of clamping means, which are arranged opposite to each other, and the long wood W from the supply device 50 for conveyance are conveyed between the clampers 11 and 12, and after the inspection is completed, the long wood W is discharged. A pair of left and right chain conveyors 32, 32 as horizontal transfer means for sending out to the transfer device 90.
And a lift cylinder 30 as lifting means for moving the chain conveyors 32, 32 up and down.

The left and right integrated clampers 11 and 12 are
Basically, they have substantially the same structure, and in addition to FIG. 3, FIG. 1 representatively shows the clamper 11 side on the right side in the material feeding direction.
As can be seen with reference to FIG. 1 and FIG. 12, an upright concave shape slidably mounted on a pair of long rails 24 provided horizontally on the support base 2 in the left-right direction. It is slidably mounted on the left and right on a pair of short rails 16a further provided on the slider 16 having the sliding feet 16c, 16c.

The clampers 11 and 12 are clamp plates 11a and 12a whose front faces are non-slip for pressing and holding the left end faces in the longitudinal direction of the long wood W to be inspected.
The rotary shafts 11d and 12d connected and fixed to the rear surfaces of the clamp plates 11a and 12a, and the rotary shafts 11d and 12d.
bearing members 11b and 12b that rotatably support d,
The bearing members 11b and 12b are provided at the bottom thereof and are provided with a pair of upside-down concave sliding foot portions 11c, 11c and 12c, 12c which are laid on the short rail 16a. The right clamper 11 is configured to be rotated via a chain type power transmission mechanism 14 by a geared motor 15 on which the clamp plate 11a and the rotary shaft 11d are arranged.

The slider 16 on which the clampers 11 and 12 are mounted can be slid leftward and rightward on the rail 24 by a screw feed mechanism 20. The screw feed mechanism 20 is a feed screw 27 arranged in parallel with the rail 24, and a nut 2 fixed to the bottom of the slider 16 and screwed onto the feed screw 27.
8. A geared motor 25 for rotating the feed screw 27 via a chain type power transmission mechanism 26.

By this screw feed mechanism 20, the pair of left and right clampers 11 and 12 are slid together with the slider 16 in the left and right directions for expanding and contracting the distance between them, whereby the long wood W to be inspected. It is designed to support different types (different length dimensions). Also,
The clampers 11 and 12 are mounted on the rails 16a provided on the slider 16 so that the air cylinders 2 are mounted on the rails 16a.
1, 22 are pushed and pulled through the connecting arms 23, 23 to be slid in a direction of expanding and contracting the distance between them, whereby the longitudinal displacement of the long wood W of the same type to be inspected and By absorbing the difference in the length dimension, the long wood W is clamped to the pair of left and right clamp plates 11a, 12
It is configured to be pressed and held so as to be sandwiched by a and to be released from that state.

On the other hand, the chain conveyors 32, 32
As shown in FIGS. 9 and 10, is wound around a holding member 38 having a screw type adjusting mechanism 58 for adjusting the tension of the chain, and the geared motor 3
4, the chain conveyors 32, 32 are arranged horizontally on the support base 2 via a connecting plate 33 at the center of the holding member 38 in order to vertically move the chain conveyors 32, 32 vertically. A piston rod 30a of an air cylinder 30 as lift means attached to a fixed holding plate 29 provided is connected, and the connecting plate 3 is provided on both front and rear sides thereof.
Guide rods 36, 36 are vertically fixed via 3, 33, and lower portions of the guide rods 36, 36 are slidably inserted in a guide cylinder 37 vertically fixed to the fixed holding plate 29.

Further, the long wood W conveyed by the chain conveyors 32, 32 is placed on the installation base 41 erected on the fixed holding plate 29 by the clamp plates 11a,
A pair of left and right stopper cylinders 42, 42 are arranged in a state where they are stopped at a predetermined position (clamping position) sandwiched by 12a and are separated by a predetermined distance in a direction orthogonal to the same position when viewed in the transport direction. In addition, a limit switch 44 (see FIG. 1) for detecting that the long wood W has been stopped is disposed near one of the stopper cylinders 42, 42, and The positions of the cylinders 42, 42 and the limit switch 44 in the long wood W transport direction can be adjusted by a screw type adjusting mechanism 45.

Here, when the air cylinder 30 is extended and the piston rod 30a thereof is projected upward, the entire chain conveyors 32, 32 are guided by the guide cylinders 37, 37 as shown in FIG. It is lifted vertically, and its upper surface is at substantially the same height as the upper surfaces of the roller-equipped chain conveyor 52 (described later) of the supply transport device 50 and the roller-equipped chain conveyor 92 of the discharge transport device 90. , The chain conveyor 3
2, 32 are adapted to receive the long wood W conveyed from the chain conveyor 52 with rollers and convey it to the clamp position where it is stopped by the piston rod 42a of the stopper cylinder 42.

When the piston rod 30a of the air cylinder 30 is pulled in, the chain conveyors 32, 32 are entirely guided by the guide tubes 37, 37 to be vertically lowered as shown in FIG. As will be described later, the retracted position is set so that the long wood W held and rotated by the clampers 11 and 12 does not hit.

On the other hand, as shown in FIGS. 1 and 2, the supply device 50 for supply and the transfer device 90 for discharge are arranged substantially horizontally on support bases 3 and 4 assembled in a box frame shape. A pair of left and right chain conveyors with side rollers 5
2, 52 and 92, 92. The chain conveyors 52, 52 and 92, 92 with side rollers are
The geared motors 54 and 94 are rotationally driven (circularly moved) via chain type power transmission mechanisms 55 and 95 and drive shafts 56 and 96.

The chain conveyors 52 and 92 with side rollers are shown in FIG.
2, the connecting pin 52c in the chain main body 52A including the joint link 52a, the connecting pin 52c, and the sleeve 52b is extended every other one, and the rollers 59 are freely rotatable at both ends thereof. The object to be conveyed (long wood W) placed on the chain conveyors 52, 92 can be slid relative to the chain conveyors 52, 92.

Further, in addition to the chain conveyors 52, 52 with side rollers, the supply transport device 50 includes:
As can be seen by referring to FIGS. 4 to 7 in addition to FIGS. 1 and 2, a stopped state in which the long wood W conveyed by the chain conveyors 52, 52 is stopped at a predetermined position and this stop A pair of left and right stopper cylinders 62, 62 arranged to be selectively released in a release state for releasing the state and arranged at a predetermined position in the direction orthogonal to the same position when viewed in the transport direction, A limit switch 64 arranged near one of the stopper cylinders 62, 62 for detecting that the long wood W is stopped, and a long cylinder stopped by the stopper cylinders 62, 62. A sandwiching plate 66a for sandwiching and restraining the article conveyed next to the wood W,
A pair of upper and lower clampers 66, 67 and 66, 67 on the left and right, which are composed of a pair of upper and lower air cylinders each having 67a, and are arranged at a predetermined distance in the direction orthogonal to the same position as viewed in the transport direction Is provided.

To explain this in more detail, the stopper cylinder 62, the limit switch 64 and the lower clamper 67 are fixed to a fixed holding plate 72 which is horizontally attached to the support base 3, and the piston of the stopper cylinder 62 is fixed. The tip portion of the rod 62a is projected above the upper surface of the chain conveyor 52 with side rollers to stop the long wood W, and when the rod 62a is pulled down from the upper surface to pass the long wood W. The released state is selectively set.

In the natural state of the limit switch 64, the tip end of the operating lever 64a is made to project above the upper surface of the chain conveyor 52 with side rollers, and the operating lever 64a is conveyed by the chain conveyor 52. The operating state is switched by being pushed and rocked by the long wooden piece W that is being moved. Here, the long wooden piece W is at a position where it is stopped by the piston rod 62a of the stopper cylinder 62. When it comes, its operating state is, for example, OF
It is set to switch from F to ON. The operating lever 64a of the limit switch 64
When the long timber W is conveyed, it is pushed and swings so that it does not interfere with the conveyance (see FIG. 6), and after the long timber W has passed, the long timber W of FIG. To return to the upright position (OFF).

When the lower clamper 67 is in operation, the holding plate 67a is projected upward from the upper surface of the chain conveyor 52 with the side rollers so that the long timber W is
A little above the upper surface of the chain conveyor 52,
It is held by being sandwiched between an upper clamper 66 mounted downward on the top portion 6 of the support base 3. The positions of the stopper cylinder 62, the limit switch 64, and the lower clamper 67 as seen in the carrying direction are
It can be adjusted by a screw type adjusting mechanism 74.

In the feeding / transporting device 50 having such a structure, first, as shown in FIG. 5, the pair of left and right stopper cylinders 62 and 62 stop the piston rods 62a and 62a of the stopper cylinders 62a and 62a. The chain conveyor 5 with side rollers
2, the stopper cylinder 62 being conveyed by
The long wood W immediately before 62 is the stopper cylinder 62,
The long wooden piece W is stopped by the stopper cylinders 62, 62 while being abutted against the 62 and stopped midway, and the posture thereof is adjusted so as to be substantially orthogonal to the conveying direction. It collides with the wood W and is adjusted in posture to be stopped. At this time, the chain conveyor 52 with side rollers continues to rotate, but the roller 59 of the chain conveyor 52 with side rollers slides with respect to the long wood W that has been stopped, which hinders its rotation operation. Does not occur, and the long wood W is not scratched.

As described above, when the long timber W is abutted against the stopper cylinders 62 and 62 and stopped, the operating state of the limit switch 64 is switched from OFF to ON at the same time, and the long timber W is changed. The fact that W has been stopped is detected by an apparatus controller (not shown) based on a signal from the limit switch 64,
As shown in FIG. 6, a pair of upper and lower clampers 66, 67 and 66, 67 on the left and right are operated, and the long wood W stopped by the stopper cylinders 62, 62 is conveyed next to the long wood W. The long wood W is clamped and held by a pair of upper and lower clampers 66, 67 and 66, 67 on the left and right sides, and the stopper cylinder 6
Even if the long timber W stopped by 2, 62 is conveyed forward, the long timber W remains at that position.

Then, as shown in FIG. 7, the long wood W is moved by the upper and lower clampers 66, 67 and 66, 67.
While the stopper cylinders 62 and 62 are held in a restrained state, the stopper cylinders 62 and 62 are released, and the chain conveyor 52 with the side rollers continues to rotate during this period, so that the stopper cylinders 62 and 62 are stopped. The long timber W at the beginning was sent forward,
The chain conveyors with side rollers 52, 52 are sent to the chain conveyors 32, 32 provided in the long material inspection apparatus 10, and the chain conveyors 32, 32 are provided.
Is conveyed to the left and right clamp positions.

Then, as shown in FIG. 9, the long wood W
When the limit switch 44 is conveyed to the left and right clamp positions and stopped by the stopper cylinder 42, the operating state of the limit switch 44 is switched from OFF to ON, which is detected by a device control unit (not shown), and the above-mentioned is performed. As shown in FIG. 5, the upper and lower clampers 6
Operation of 6,67 and 66,67 is released (unclamp)
Then, the long timber W, which has been restrained and held, is fed forward, but at this time, since the stopper cylinders 62, 62 are in the stopped state, the initial state is returned to and the above steps are repeated.

By doing so, even if the operator does not adjust the intervals and the postures of the long timbers W,
The long timbers W can be automatically separated one by one, and can be sequentially conveyed to a target place (left and right clamp positions) with a proper posture at predetermined intervals, which saves labor and rationalizes.
Since it is not necessary to leave a space in the long wood W on the upstream side of the stopper cylinders 62, 62 in the chain conveyors 52, 52 with side rollers, a large amount of the long wood W is placed on the conveyors 52, 52. Can be kept in stock, and as a result, the articles conveyed to the destination (left and right clamp positions) will not be interrupted.

As described above, the long wood W to be inspected is supplied to the supply transport device 50 and the chain conveyor 32,
When the apparatus is conveyed to the left and right clamp positions in a posture orthogonal to the conveying direction by 32 and stopped, the apparatus control unit detects it based on the signal obtained from the limit switch 44 as described above, and the apparatus control unit Is
The geared motors 34, 34 are stopped to stop the operation of the chain conveyors 32, 32, the feed screw mechanisms 20, 20 and the air cylinders 21, 22 are appropriately operated, and the left and right clampers 11, 12 are moved forward. Let As a result, both ends of the long wood W are pressed and held by the clampers 11 and 12.

Then, as described above, the piston rod 30a of the lift cylinder 30 is pulled in, and the chain conveyors 32, 32 are lowered from the position shown in FIG. 9 to the position shown in FIG. so,
The geared motor 15 is operated and the clamp plate 11a of the right clamper 11 is rotationally driven.
Along with that, the pair of left and right clamp plates 11a, 12a
The long timber W which is clamped and held between is rotated, for example, intermittently by 90 degrees so that the four surfaces sequentially come to the upper surface, or continuously rotated by 360 degrees at the same angular velocity, during which the operator visually observes. For example, the presence / absence, size, position, etc. of scratches, folds, etc. are inspected.

While the long timber W is being rotated in this manner, the chain conveyors 32, 32 are lowered, so that the long timber W does not interfere. After the inspection, the lift cylinder 3
0 piston rod 30a is projected upward,
The chain conveyors 32, 32 are raised, the left and right clampers 11, 12 are retracted, the long wood W is released from the left and right clampers 11, 12, and the chain conveyors 32, 32 are rotationally driven again. Then, the chain conveyors 32, 32 and the discharging transfer device 90 transfer the long wood W that has been inspected to the outside.

By doing so, for example, in order to determine the rank and the like of the long timber W that has been cut into a rectangular cross-section such as a square pole material, the presence and position of scratches, blister, etc. are visually inspected and selected. The labor of the worker at the time of doing so can be reduced, the labor can be saved, the inspection efficiency can be improved, and the long wood to be inspected can be hardly scratched. In addition,
Although one example of the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and various modifications can be made in design without departing from the spirit of the invention described in the claims. It is a thing.

For example, in the above example, the case where the object to be inspected is a long timber with a square (square) cross section has been described. However, the long material inspection device of the present invention has Of course, the present invention is not limited to the above-mentioned ones, and of course, it can be applied to the inspection of a triangular or polygonal sectional shape, or a pipe material or a rod material made of steel or synthetic resin.

[0034]

As can be understood from the above description, according to the long material inspection apparatus of the present invention, scratches are formed in order to determine the rank of the long material such as the construction timber lumbered into a rectangular cross section. When visually inspecting the presence or absence and position of a nodule, etc., it is possible to significantly reduce the labor of the operator and save labor, and improve the inspection efficiency, and the length to be inspected It has an excellent effect that it is difficult to scratch the scale.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an embodiment of a long material inspection device according to the present invention.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is an IV-IV arrow view of FIG. 1.

FIG. 5 is a sectional view taken along the line VV of FIG. 1;

FIG. 6 is a diagram provided for explaining the operation of the supply transport device shown in FIG. 1.

FIG. 7 is a diagram provided for explaining the operation of the supply transport device shown in FIG.

FIG. 8 is a partially enlarged view showing details of the chain conveyor with side rollers shown in FIG.

9 is a view taken along the line IX-IX in FIG.

10 is a diagram provided for explaining the operation of the long material inspection device in FIG.

FIG. 11 is a view on arrow XI of FIG. 1.

FIG. 12 is a view taken along the line XII-XII in FIG.

[Explanation of symbols]

 10 Long Material Inspection Device 11, 12 Clamper (Clamping Means) 15 Geared Motor (Rotation Driving Means) 20 Screw Feed Mechanism (Clamping Position Changing Means) 21, 22 Air Cylinder (Clamping Position Changing Means) 30 Lift Cylinder (Lifting Means) 32 Chain conveyor (conveying means) W Long material

Claims (4)

[Claims] 1. A long material inspection device which holds and rotates both longitudinal ends of a long material W to be inspected. 2. A conveying means 32 for conveying the long material W in a horizontal direction, a lift means 30 for vertically moving the conveying means 32, and a pair for pressing and holding both longitudinal ends of the long material W. The long material inspection apparatus according to claim 1, which is configured to include the clamp means (11, 12) and the rotation driving means (15) for rotating the clamp means (11, 12). 3. Clamp position changing means 20, 2 for changing the distance between the pair of clamp means 11, 12.
The long material inspection device according to claim 2, wherein the long material inspection device is provided. 4. The long material inspection apparatus according to claim 1, wherein the long material W is wood having a rectangular cross section.