JPH0796207B2 - Nailing device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a nailing device.

[Prior Art] Conventionally, a nailing device as described in JP-A-60-90705 has been used. As shown in FIG. 5, a conventional nailing device includes an air cylinder 2 supported by a gantry 1 and a nailing rod 3 connected to a tip end portion of a piston rod of the air cylinder 2.
And a nail standby portion 4 arranged on the moving line of the nailing rod 3, and drives the nail at the nailing stroke end of the nailing rod 3 determined by the total stroke S of the air cylinder 2. It is supposed to be completed.

[Problems to be Solved by the Invention] However, in the conventional nail driving device,
Since the nailing stroke end of the nailing rod 3 is determined on the basis of the apparatus in all strokes S of the air cylinder 2, when the surface of the material to be nailed 5 is lowered from the reference level by, for example, the height l, this height l However, the nail head may be left untouched due to insufficient driving. In this case, it is necessary to perform additional hitting in a post process manually.

The unevenness of the surface level of the nailed material 5 as described above is caused by the warp of the joist 7 when the board 8 is nailed to the joist 7 screwed to the girder 6, as shown in FIG. 6, for example. Occurs.

The present invention, even when the surface level of the material to be nailed changes,
The aim is to always obtain a proper nailing condition.

[Means for Solving the Problems] The present invention relates to a cylinder supported by a gantry, a nailing block that is connected to a tip end portion of a piston rod of the cylinder and reciprocates, and includes a nailing rod, a nailing block and a nail. They are connected so that they can move relative to each other in the striking direction, and a nail standby part is provided on the moving line of the nailing rod, which is interposed between the nailing block and the material to be nailed during the nailing operation of the nailing block. A nailing device having a nailing stop surface that abuts a block and a reference block that has a nailing reference surface that abuts a surface of a material to be nailed, wherein the reference block is a nailing direction with respect to a cylinder. With the nailing block hitting the nailing stop surface of the reference block, the tip of the nailing rod reaches approximately the same level as the nailing reference surface of the reference block. It is set.

[Operation] The nailing device of the present invention operates as follows.

As the cylinder operates, the nailing block and the reference block move down.

The nailing reference surface of the reference block collides with the surface of the material to be nailed. As a result, the reference block stops and only the nailing block continues to descend.

The nailing block descends until it hits the nailing stop surface of the reference block. In this descending process, the nailing rod of the nailing block pushes the nail waiting in the nail waiting portion of the reference block, and nailing is completed.

Therefore, according to the present invention, the nailing reference surface of the reference block always abuts the surface of the material to be nailed, and the tip portion of the nailing rod reaches the nailing reference surface. Therefore, even when the surface level of the material to be nailed changes, the nailing rod always pushes the nail head to the nailing reference surface, in other words, the surface of the material to be nailed, and obtains a proper nailing state. be able to.

[Embodiment] FIG. 1 is a side view showing a nailing device of the present invention, FIG. 2 is a front view showing the entire nailing machine, and FIG. 3 is a side view of FIG.
The figure is a schematic view showing a nailing state of the nailing device.

As shown in FIGS. 2 and 3, the nailing machine 10 has 12 heads of nailing devices 11 arranged in parallel, and as shown in FIG.
The board 8 is nailed to the joist 7 fastened with screws. 12 is a transport roller, 13 is a joist stopper, 13A is a joist stopper cylinder, 14 is a joist clamper, 14A is a joist clamper cylinder, 15 is jota backup bar, 15A is jota backup cylinder, 16 is girder slipper, 17 is entrance photoelectric tube, Reference numeral 18 is an output side phototube.

That is, the nail driver 10 operates as follows.

The material to be nailed is carried in by the carrying roller 12.

The joists 7 are stopped by the joist stopper 13 which is set to the working position.

The joist clamper 14 is driven to the working position, and the joist 7 is sandwiched between the joist 7 and the joist stopper 13.

The joist backup bar 15 is raised to the working position and the girder 6 is pressed against the girder slippers 16. As a result, the nailed material is fixed by the joist stopper 13, joist clamper 14, joist backup bar 15, and girder stopper 16.

The nailing device 11 operates and nails.

The joist stopper 13, joist clamper 14, and joist backup bar 15 are returned to the origin.

The conveying roller 12 conveys the nailed material again. After that, the above steps are repeated.

In addition, in the above, only the input side phototube 17 is the board 8
When detecting, the nailing device 11 nails only the upstream nailing portion in the joist width direction because it is the hammering start end of the board 8, and both the incoming photoelectric tube 17 and the outgoing photoelectric tube 18 detect the board 8. In this case, since it is the middle part of the board 8, the nailing device 11 nails at two positions upstream and downstream of the joist width direction. Therefore, the nailing device 11 nails only the downstream nailing portion in the joist width direction.

Hereinafter, the configuration of the nailing device 11 will be described.

The nailing device 11 is a cylinder as shown in FIGS.
21, a nailing block 22, and a reference block 23.

The cylinder 21 is supported by a mount 24.

The nailing block 22 is a piston rod 25 in the cylinder 21.
And is reciprocated along the slide rail 26A and the guide rod 26B. Also, the nailing block 22 is 2
It comprises a nailing rod 27 of books.

The reference block 23 is connected to the nail driving block 22 so as to be relatively movable in the nail driving direction, and the reference block 23 is relatively movable in the nail driving direction with respect to the cylinder 21, and the slide rail 26A and the guide rod 26B. You can move along.
28 is a connecting rod and 29 is a compression spring. Reference block 23
Is provided with a nail standby portion 30 on the moving line of both nail driving rods 27. Two rows of nail feeders 31 are connected to both nail waiting portions 30.

The reference block 23 is interposed between the nailing block 22 and the material to be nailed at the time of the nailing operation of the nailing block 22, and is a nailing block.
A nailing stop surface (23A) that abuts the lower end surface (22A) of the needle (22) and a nailing reference surface (23B) that abuts the surface of the material to be nailed. The nailing reference surface 23B constitutes a part of the reference block 23, and is formed by the level detection surface (lower surface) of the reference plate portion 32 that can come into contact with the surface to be inspected having the same level around the nailing portion.

Furthermore, the lower end surface 22A of the nailing block 22 is the reference block 23.
Under the state of colliding with the nailing stop surface 23A, the tip end of the nailing rod 27 is set so as to reach substantially the same level as the nailing reference surface 23B of the reference block 23. Therefore, in the nailing device 11, the nailing stroke end of the nailing rod 27 is
The stroke S of the nailing rod 27 is determined with reference to the surface of the material to be nailed, and keeps the same value with respect to the fluctuation of the surface level of the material to be nailed.

The nailing device 11 includes two nailing rods 27, a nail standby portion 30,
It has two rows of nail feeders 31, which are
, Such that the nail striking portions are different at the striking start end, the middle portion, and the striking end end of the board 8.

Next, the operation of the above embodiment will be described.

The nailing device 11 operates as follows (see FIG. 4).

When the cylinder 21 operates, the nailing block 22 and the reference block 23 descend.

The nailing reference surface 23B of the reference block 23 abuts the surface of the material to be nailed. As a result, the reference block 23 is stopped and only the nail driving block 22 continues to descend.

The nailing block 22 descends until it hits the nailing stop surface 23A of the reference block 23. In the process of this descending, the nailing rod 27 of the nailing block 23 pushes the nail waiting in the nail waiting portion 30 of the reference block 23, and nailing is completed.

Therefore, according to the above embodiment, the reference block 23
The nailing reference surface 23B collides with the surface of the material to be nailed, and the tip of the nailing rod 23 reaches the nailing reference surface 23B. Therefore, even when the surface level of the material to be nailed is uneven (for example, as shown in FIG. 4, the surface of the material to be nailed is lowered from the reference level by 1), the nailing rod 27 always keeps the nail head. Is pushed into the nailing reference surface 23B, in other words, the surface of the material to be nailed, and a proper nailing state can be obtained.

In the present invention, in the same type of nailed material, when the nailing surface level varies and is non-uniform, in the same type of nailed material, the surface levels of a plurality of nailing parts are different from each other. In this case, when the nailing materials of different types are nailed, the present invention can be widely applied when the nailing surface level of each type is different from each other.

[Effects of the Invention] As described above, according to the present invention, it is possible to always obtain a proper nailing state even when the surface level of the material to be nailed is uneven.

[Brief description of drawings]

FIG. 1 is a side view showing the nailing device of the present invention, FIG. 2 is a front view showing the whole of the nailing machine, FIG. 3 is a side view of FIG.
FIG. 6 is a schematic diagram showing a nailing state of the nailing device, FIG. 5 is a schematic diagram showing a conventional nailing state, and FIG. 6 is a schematic diagram showing a material to be nailed. 11 …… Nail driving device, 21 …… Cylinder, 22 …… Nail driving block, 23 …… Reference block, 23A …… Nail driving stop surface, 23B …… Nail driving reference surface, 24 …… Stand, 25 …… Piston Rod, 27 …… Nail driving rod, 30 …… Nail standby part.

Claims (1)

[Claims] Claim: What is claimed is: 1. A cylinder supported by a gantry, a nailing block which is connected to a tip end portion of a piston rod of the cylinder and reciprocates, and which is provided with a nailing rod. It is connected and has a nail standby part on the moving line of the nailing rod, and it is interposed between the nailing block and the material to be nailed during the nailing operation of the nailing block and collides with the nailing block. A nailing device having a surface and a reference block having a nailing reference surface that abuts the surface of the material to be nailed,
The reference block is movable relative to the cylinder in the nailing direction, and the tip of the nailing rod is the nailing reference of the reference block when the nailing block abuts the nailing stop surface of the reference block. A nailing device set to reach almost the same level as the surface.