JPH0550406A - Automatic nailing machine - Google Patents

Abstract

PURPOSE:To drive a nail in a suitable position by a method wherein the moving speed of a nailing machine suppoter is kept at a high speed until a first sensor detects a vertical frame and is reduced after said sensor detects the frame and when a second sensor detects the frame, said supporter is stopped to actuate the nailing machine. CONSTITUTION:On a supporter arm 17, there are provided a first sensor 26 which is located at a position, on the front side of a nailing machine in the moving direction thereof where a vertical frame of a work table can be detected, to detect the presence of said frame and a second sensor 27 to detect that the frame having been detected by the sensor 26 has come on the center line 20 of a nose of the machine by the movement of a supporter. And then the moving speed of the nailing machine supporter is kept at a high speed until the sensor 26 detects the frame and after the detection by the sensor 26 the moving speed is reduced and when the sensor 27 detects the frame, the supporter is stopped to actuate the machine to drive a nail in a suitable point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic nailing device for assembling a frame for a housing wall panel, which is composed of an upper frame, a lower frame, a vertical frame, etc., by a nailing machine.

[0002]

2. Description of the Related Art An automatic nailing device for assembling a housing wall panel frame body composed of an upper frame, a lower frame and a vertical frame by a nailing machine is known. Residential wall panels and the like composed of an upper frame, a lower frame, a vertical frame, and the like are used in large quantities in a construction method which is popular recently as 2 × 4 (two-by-four), and thus there is a high demand for such a device.

In the automatic nailing device, when nailing a housing wall panel frame or the like placed on a work table, a numerical value is input in advance to the control device so that the interval between the vertical frames is entered, and the nail and the frame are nailed together. A numerically controlled automatic nailing device that performs nailing by relatively moving the nailing machine relative to the hammer is well known. This device is convenient because the housing wall panel frame is automatically assembled.

[0004]

In the numerical control type automatic nailing device, it is necessary to input data to the control device in advance, but the key-in work of this data is quite a troublesome work in the field, and Data entry using a flexible disk, an IC card, or the like requires the work of creating data in advance.

Therefore, the object of the present invention is not only to eliminate the need for inputting a numerical value as in a numerically controlled automatic nailing device, but also to automatically detect an actual workpiece and perform nailing at a correct position. It is to provide an automatic nailing device for performing.

[0006]

In order to achieve such an object, in the present invention, an automatic nailing system for assembling a housing wall panel frame body and the like composed of an upper frame, a lower frame and a vertical frame by a nailing machine. According to the present invention, the device is arranged on a work table on which an upper frame, a lower frame, and a vertical frame provided between both frames are laid down and placed in a state assembled as a wall panel frame body. For example, a support body that is provided on the side surface of the work table and holds the nail driver in a posture in which the nail is horizontally driven from the upper frame or the lower frame to the vertical frame, and the support body is moved along the side surface of the work table. The driving means for moving the nailing machine and the support are attached to the front side in the moving direction of the nailing machine, at a position where the vertical frame of the work table can be detected, and the presence or absence of the vertical frame is detected. The first sensor and the first by the movement of the support
A second sensor attached to the support for detecting that the vertical frame detected by the sensor has come to the center line of the nose of the nailer, and the moving speed of the nailer support is determined by the first sensor. The speed is increased until the vertical frame is detected, the moving speed is reduced after the first sensor is detected, and when the vertical frame is detected by the second sensor, the support is stopped and the nailing machine is operated. An automatic nailing device is provided.

[0007]

EXAMPLES Examples of the present invention will be described below with reference to FIGS.
Will be described with reference to. The automatic nailing device 1 for assembling a wall panel frame for a house according to the present invention is a state in which an upper frame, a lower frame and a vertical frame provided between both frames are assembled as a wall panel frame. It is arranged on the work table 2 which is laid down and placed. The work table 2 is a frame 3 on the right side of FIG.
1 is fixed, the left frame 4 is configured to be movable left and right in FIG. That is, both frames 3,
4 is a pantograph-type doglegged link mechanism 5,
5 and the connecting member 6, and the link mechanism 5 is operated by operating the connecting member 6 to move the left frame 4 while being parallel to the position of the imaginary line, thereby making it possible to reduce the width of the work table 2. Has been Therefore, the width of the work table can be changed according to the width of the panel frame body to be placed, and the construction is extremely easy.

On the side surface of the work table 2, a nailing machine 7 in a posture in which nails are horizontally driven from an upper frame or a lower frame into a vertical frame.
A control device 8 for controlling nailing of the nailing machine 7 is provided. Since the nail driving machine 7 drives the nail horizontally to the panel frame, it can be easily and safely operated. The nailing machine 7 and the control device 8 are both connected and supported by a support body 9 as shown in FIG. And this support 9
Are rails 11 and 1 provided on the side surface of the work table 2.
2 is movably supported. Nailer 7 and control device 8
The support body 9 for supporting is moved forward in the direction of arrow 14 by the driving means such as the motor 13 and is returned to the original position. As shown in FIG. 1, the nailing machine 7, the control device 8 and the like are provided on both sides of the upper frame side and the lower frame side,
It is possible to nail at the same time from both the upper frame side and the lower frame side. As will be described later, in the lower frame side nailing control and the upper frame side nailing control, the upper frame side nailing device is the master unit, the lower frame side nailing device is the slave unit, and both nailing devices are used. Are interlocked and controlled according to the workpiece such as the frame.

As shown in FIG. 2, the support 9 for supporting the nailing machine 7 and the like extends upward and has a horizontal plate-like arm 17 at its end. This support arm 17
Is equipped with several sensors and members. The details will be described with reference to FIG. 3, the vertical thick line 20 indicates the axis of the nose of the nailing machine 7, and the reference numeral 21 indicates one of the frames of the work table 2. The portion surrounded by the reference numeral 17 is the support arm. Also, the nail driver and the support arm are assumed to move in the direction of arrow 14.

The support arm 17 is provided with a piston cylinder device 24 on the extension of the axis 20 of the nailer nose (see also FIG. 2). The piston-cylinder device 24 is an auxiliary means for appropriately pressing the nail by pressing the lower frame (or the upper frame) and the vertical frame supported by the work table 2 below the support arm 17 at their boundaries. .. Further, the support arm 17 is provided with various sensors for detecting the vertical frame of the panel frame body supported by the work table 2 below the support arm 17. The first sensor 26 is on the front side in the moving direction of the nailing machine (the direction of arrow 14) and is on the table center side of the position where the vertical frame of the work table can be detected, that is, the lower frame (or the upper frame). Installed on. It is convenient for this sensor to be of a type which is composed of an optical sensor and receives the reflected light from the vertical frame, but a mechanical or electronic sensor or any other sensor can be used.

The second sensor 27 detects that the vertical frame detected by the first sensor 26 has moved to the center line of the nose of the nailing machine by the movement of the support arm 17,
The support arm 17 is attached to the rear side (the direction opposite to the arrow 14) by the length from the position on the extension line of the nose axis 20 to the center of the vertical frame. In addition, the first sensor 26
The third sensor 28 is provided at a predetermined position on the rear side of the second sensor 27 and on the front side of the second sensor 27. This third sensor 2
8 detects that the vertical frames are arranged side by side. Further, a fourth sensor 29 is provided at a predetermined position on the rear side of the third sensor 28 and on the front side of the second sensor 27. The fourth sensor 29 detects that the vertical frame is in close contact with the front of the vertical frame detected by the second sensor 27 and is not continuously arranged.

The operation of the automatic nailing device having the above structure will be described with reference to the control circuit shown in FIG. First,
The support 9 supporting the nailing machine 7 and the control device 8 is moved at high speed in the direction of arrow 14. For this movement, a signal is sent from the control unit 30 of the control circuit provided in the control device 8 to the drive unit 31 to drive the motor 13. Next, when the first sensor 26 detects the presence of the vertical frame, the moving speed of the support body 9 is reduced. Therefore, the nailing machine 7 can be ready to stop at the position where it should be driven. Due to this function, the first sensor 26 is also called a deceleration sensor. When the other sensors 28 and 29 do not detect the vertical frame when the first sensor 26 detects the vertical frame, the support body 9 moves while decelerating, and the second sensor 27 moves by the first sensor 26. When the detected vertical frame is detected, the movement of the support 9 is stopped. This second sensor is also called a stop sensor. Due to this stop, the center of the vertical frame is on the extension line of the nose axis 20 of the nailing machine 7, so the control unit 30 sends a signal to the nailing operation unit 32 to operate the nailing machine 7, Nailing is performed from the frame (or upper frame) toward the vertical frame.

The support 9 is a nailing machine 7 or a control device 8.
Since it supports a heavy object, its inertial mass is large, and the axis of the nose and the center of the vertical frame may be misaligned when the motor is simply stopped. For this reason, after the vertical frame is detected by the second sensor 27, a stop signal is sent to the motor 13 to stop the support body 9. However, the support body 9 is stopped after advancing for a certain length, and then the nailing machine is driven there. 7 can also be operated.

Next, the first sensor 26 detects the vertical frame,
Subsequently, the third sensor 28 detects the vertical frame and the fourth sensor 29
When the vertical frame is detected, it can be determined that the vertical frame is continuously and closely attached. Therefore, the third sensor 28 is also called a continuous vertical frame sensor. First sensor 26
When the second sensor 27 detects the vertical frame by detecting the above, the movement of the support 9 is stopped and the nailing machine is operated, which is the same as the above-described operation. But,
After the nailing is completed, the control unit 30 further sends a signal to the driving unit 31 to energize the motor 13 so that the nailing machine support has a length corresponding to the size of the vertical frame (38 mm in the case of 2 × 4). ) Move and operate the nail driver 7 again. Then, as long as the vertical frames are continuous, the nailing machine performs nailing for each of the lengths, whereby the continuous vertical frames are respectively nailed.

Further, the first sensor 26 detects the vertical frame,
Subsequently, the third sensor 28 detects the vertical frame, and the fourth sensor 2
9 In a state where the vertical frame is not detected, it can be determined that the vertical frame is continuous but is not closely arranged. In this case, the support body is decelerated by the detection of the first sensor 26, and when the second sensor 27 detects the vertical frame, the movement of the support body 9 is stopped and the nail is first moved from the nailing machine 7. Type into the frame. Next, the control unit 30 sends a signal to the driving unit 31 to energize the motor 13 to move the nailing machine support 9 to a position where the second sensor 29 detects the next vertical frame, and again nailing. Operate the machine. As a result, the nails are properly driven in the centers of the vertical frames even with the vertical frames arranged at a slight distance.

The above case can also be applied to a structure of a special continuous vertical frame in which plywood having a thickness of about 13 mm is arranged between the vertical frames. In the case of a vertical frame having such a configuration, if the 13 mm-thick plywood is treated with, for example, a non-reflective dummy marker so that the fourth sensor 29 does not react, the plywood part is not a genuine vertical frame. Can be determined. By this processing, even if there is a plywood between the vertical frames, nailing can be performed at the center of the genuine vertical frame. This fourth sensor is also called a dummy sensor.

In the housing wall panel or the like which is the driving target of the automatic nailing device according to the present invention, generally, the vertical frame connection arrangement is different between the upper frame side and the lower frame side. That is, since there are so-called openings such as windows and passages, the vertical frame is not necessarily connected to the upper and lower frames in the same shape. In such a case, the nailing position is controlled by a numerical control method, and for example, when the automatic nailing device as the parent device on the upper frame side is remotely operated from the automatic nailing device as the child device on the lower frame side, It is necessary to input the control pattern for the machine and the control pattern for the child machine, which is different from the control pattern, respectively. However, the automatic nailing device according to the present invention, regardless of whether it is the master unit or the slave unit, detects the workpiece such as the frame body and controls the nailing as described above. Therefore, even if the connection arrangements of the vertical frames on the upper frame side and the lower frame side are different, each automatic nailing device makes its own judgment to perform nailing. Therefore, the main unit and the slave unit,
By inputting common (same) data, the master unit and the slave unit can be operated simultaneously from the master unit. This not only simplifies the input pattern to each nailing device, but also improves its operability.

[0018]

According to the automatic nailing device of the present invention, the upper frame, the lower frame, and the vertical frame provided between the two frames are laid and placed in a state of being assembled as a wall panel frame body. The support that holds the nailing machine in a posture where the nails are driven horizontally to the side of the work table of the work table and the support that moves along the side of the work table have a vertical frame on the front side in the moving direction of the nailer. A first sensor for detecting the presence or absence and a second sensor for detecting that the vertical frame has come on the center line of the nose of the nailing machine by the movement of the supporting body are provided, and the moving speed of the nailing machine support is The speed is increased until the vertical sensor is detected by the first sensor, the moving speed is reduced after the detection by the first sensor, and when the vertical frame is detected by the second sensor, the support is stopped and the nailing machine is operated. Since it is operated, it is possible to perform nailing correctly according to the actual panel frame. Therefore, unlike the numerically controlled automatic nailing device, it is possible to provide an efficient and easy-to-use automatic nailing device that not only does not require input of a numerical value but also nails at an appropriate position.

[Brief description of drawings]

FIG. 1 is a plan view of an automatic nailing device according to the present invention.

FIG. 2 is a partial perspective view of the automatic nailing device according to the present invention.

FIG. 3 is a plan view of a support arm.

FIG. 4 is a control circuit diagram of the automatic nailing device.

[Explanation of symbols]

 1 Automatic Nailing Device 2 Working Table 3, 4 Frame 5 Pantograph Type Link Mechanism 7 Nailing Machine 8 Controller 9 Support 11, 12 Rail 13 Motor 16 Panel Frame 17 Support Arm 20 Nailer Nose Shaft 21 Work Table frame 24 Piston cylinder device 26 First sensor 27 Second sensor 28 Third sensor 29 Fourth sensor 30 Control section 31 Drive section 32 Nail driving section

Claims (4)

[Claims] 1. An automatic nailing device for assembling a housing wall panel frame body and the like composed of an upper frame, a lower frame and a vertical frame by a nailing machine, wherein the automatic nailing device comprises an upper frame and a lower frame. And a vertical frame provided between the two frames are arranged on a work table for lying down and placed in a state assembled as a wall panel frame body, which is provided on the side surface of the work table, and the upper frame or A support that holds the nail driver in a posture in which nails are driven horizontally from the lower frame to the vertical frame,
Driving means for moving the nailing machine by moving the support along the side surface of the work table, and a vertical frame of the work table on the support, which is on the front side in the moving direction of the nailing machine. A first sensor attached to a position for detecting the presence or absence of a vertical frame, and detecting that the vertical frame detected by the first sensor by the movement of the support body has come to the center line of the nose of the nail driver. A second sensor attached to the support body is provided, and the moving speed of the nailing machine support body is made high until the vertical frame is detected by the first sensor, and the moving speed is reduced after the detection by the first sensor. Then, when the vertical frame is detected by the second sensor, the support is stopped to operate the nailing machine, which is an automatic nailing device. 2. The automatic nailing device according to claim 1, wherein a third sensor is provided at a predetermined position on the rear side of the first sensor and on the front side of the second sensor. When the vertical frame is detected by the second sensor, the nailing machine is operated when the vertical frame is detected by the second sensor, and then the nailing machine support is moved by a length corresponding to the size of the vertical frame and the nailing machine is moved. An automatic nailing device characterized by re-operating. 3. The automatic nailing device according to claim 2, wherein a fourth sensor is provided at a predetermined position on the rear side of the third sensor and on the front side of the second sensor. Even when the frame is detected, if the fourth sensor does not detect the vertical frame, after the nail driver is operated by the vertical frame detection of the second sensor, the nail driver support is moved to the first frame. An automatic nailing device characterized in that the two sensors are moved to a position where the next vertical frame is detected and the nailing machine is operated again. 4. The automatic nailing device according to claim 1, wherein 1 is provided on each of the upper frame side and the lower frame side of the work table.
An automatic nailing device for the base is provided, the device on the upper frame side is the master device, the device on the lower frame side is the slave device, and the master device is operated by operating the master device, An automatic nailing device characterized by being able to remotely control the machine.