JP2567866Y2 - Feeding device for connecting nails in a nailing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nailing machine used for producing, for example, a wall frame unit of a prefabricated house. A plurality of connecting nails are sequentially placed in a magazine installed in the nailing machine. The present invention relates to a feeding device for a connecting nail that can be automatically loaded.

[0002]

2. Description of the Related Art In a factory for producing wall frame units for prefabricated houses, for example, a nailing machine operated by compressed air pressure or the like is used to nail frame materials. In a general nailing machine, a mechanism is used in which a connecting nail is loaded into a magazine continuously installed at the nail driving section, and the connecting nail is sequentially supplied to the nail driving section by a pusher mechanism acting on the rear end of the connecting nail. ing. With this supply mechanism, the maximum amount of connecting nails loaded in the magazine is regulated according to the length of the magazine, so that a large amount of connecting nails cannot be loaded, and it is necessary to frequently load the connecting nails. There is a problem that work efficiency is deteriorated.

There is also known a nailing machine that aligns unconnected loose nails with an aligning device and feeds the nails one by one to a nailing portion through a tube. A mechanism for separating nails one by one into the tube and a pneumatic device for feeding nails in the tube are required, and the nailing device itself becomes expensive.

[0004]

The object of the present invention is to provide an apparatus at a low cost and to reduce the number of times the nailing operation of the nailing machine is interrupted and the connecting nails are loaded into the magazine of the nailing machine. It is an object of the present invention to provide a connecting nail supply device for a nailing machine that can be used.

[0005]

According to the present invention, there is provided a connecting nail feeding device for a nailing machine which extends linearly to accommodate a connecting nail in which a predetermined number of nails are connected in a plate shape such that the nail axes are parallel to each other. A nailing machine comprising a magazine, wherein a connecting nail loaded in the magazine is sequentially supplied to a nail injection section arranged at a tip end portion of the magazine by a pusher mechanism, and is formed on a part of a side wall of the magazine. A connecting nail accommodating portion communicating with the inside of the magazine through the opening is formed, and a first connecting nail accommodated in the connecting nail accommodating portion is received in the connecting nail accommodating portion.
And a second separate plate which is inserted between a lowermost connecting nail and a next connecting nail received by the first separating plate, and the pusher mechanism is provided with a connecting nail accommodating portion. A detector is provided for detecting that the pusher mechanism has moved forward beyond the position, the pusher mechanism is moved backward by the detection output of the detector, and the first and second separate plates are alternately operated so that the inside of the connection nail accommodating portion is provided. Is automatically supplied into the magazine.

[0006]

Operation and effect of the invention A plurality of connecting nails can be accommodated in a connecting nail accommodating portion formed on the side surface of one side wall of the magazine, and these connecting nails are connected by the pusher mechanism by the position detecting detector of the pusher mechanism. Detecting that the nail has moved forward beyond the nail accommodating section, the magazine can be automatically loaded into the magazine, so that the number of times of connecting nails to the magazine of the nailing machine can be reduced and the nailing work efficiency can be improved. Can be. In addition, since the operator can replenish the connecting nails in the connecting nail accommodating portion at any time, there is no need to interrupt the operation of the nailing machine when refilling the connecting nails.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to FIGS. In FIG. 1, a nail driver 1 urges a housing 2 accommodating a striking mechanism (not shown) driven by compressed air pressure, and a driver (not shown) connected to one end of the housing 2 and driven by the striking mechanism. It comprises a nose portion 3 for guiding as much as possible and a linearly extending magazine 4 having one end connected to the nose portion 3.

The magazine 4 has a pair of side walls spaced apart from each other so that a predetermined number of nails can accommodate a connecting nail N connected in a straight plate shape with the nail axes parallel to each other so as to be movable in the longitudinal direction. And one end thereof is connected to a nail supply opening (not shown) formed on one side surface of the nose portion 3. A pusher mechanism 5 slidable along the longitudinal direction of the magazine 4 is provided on a side surface of the magazine 4,
The pusher mechanism 5 is operated by the cylinder device 6 to control the magazine 4.
Is reciprocated along the axis, a part of which advances into the magazine 4 and engages with the connecting nail in the magazine 4 to press the connecting nail toward the nose 3 by the pressing force of the cylinder. (Figure 2
reference)

A connecting nail loading unit is provided on the side of one side wall slightly behind the center of the magazine 4. The connecting nail loading unit 7 includes a connecting nail storing section 8 capable of storing a large number of connecting nails in a substantially stacked state, and a connecting nail storing section 8.
Magazine 4 with a series of connecting nails arranged so that they can appear in
It comprises a first separating plate 9 to be supplied into the inside, a second separating plate 10 and cylinder devices 11 and 12 for operating the respective separating plates 9 and 10. Connection nail storage part 8
The upper part is always open, but the bottom part is communicated with the inside of the magazine 4 through an opening formed in one side wall of the magazine 4, and is separated by the first separate plate 9 and the second separate plate 10. The separated lowermost connecting nail is dropped and supplied into the magazine 4.

The first separate plate 9 and the second separate plate 10 are both formed as a set of two pieces, and respectively advance into the connecting nail accommodating portion 8 from the front-back direction along the longitudinal direction of the magazine 4. Are arranged as follows. The first separate plate 9 is connected to the connecting nail N housed in the connecting nail housing portion 8.
Is disposed at a position where it is normally advanced into the connecting nail accommodating portion 8 so as to receive the lowermost connecting nail N, and the connecting nail is accommodated after the second separate plate 10 is operated into the connecting nail accommodating portion 8. The part 8 is withdrawn. Second separate plate 1
0 is arranged at a predetermined distance from the first separating plate so as to be able to enter between the connecting nail received by the first separating plate 9 and the next connecting nail N; Is advanced into the connecting nail storage section 8 before it is withdrawn from the connecting nail storage section 8.

The above-mentioned pusher mechanism 5 is operated by the cylinder device 6 from the rear side to the front beyond the area of the connecting nail accommodating section 8, and the rear end face of the connecting nail supplied from the connecting nail accommodating section 8 into the magazine 4. The engaging nail is pushed to the nose part 3 by engagement. A detector 13 for detecting that the pusher mechanism 5 has advanced beyond the connecting nail accommodating portion 8 is provided on the front side of the operation area of the pusher mechanism 5, and the pusher mechanism 5 is moved forward by the detection output of this detector. The operation in the direction is stopped, and the operation is made to retreat backward from the connection nail accommodating portion 8.

In a portion of the magazine 4 close to the nose 3,
An auxiliary pusher mechanism 14 for pushing the connecting nail supplied from the connecting nail accommodating portion 8 into the magazine 4 and pushed forward by the pusher mechanism 5 further into the nose is arranged. The auxiliary pusher mechanism 14 is moved back and forth along the magazine 4 by a cylinder mechanism 15 which performs forward and backward operations in conjunction with the nail driving operation of the nail driver.
As a result, each of the connection nails pushed forward to the front position in the magazine 4 engages with each of the connection nails to push the connection nail toward the nose portion 3. By the auxiliary pusher mechanism 14, even when the pusher mechanism 5 is retreating to supply the connecting nail from the connecting nail accommodating portion 8, the supply of the nail to the nose portion 3 can be performed without interruption.

The operation of the embodiment of the present invention will be described below. Normally, a predetermined number of connection nails N remain in the magazine 4, and the pusher mechanism 4 is engaged with the rear end of the connection nail N to push the connection nail in the nose direction. Further, in this state, the first separate plate 9 has advanced into the connecting nail accommodating portion 8, receives the lowermost connecting nail N accommodated in the connecting nail accommodating portion 8, and prevents the lowermost nail N from falling into the magazine 4. It is blocking.

When the nail supplied into the nose portion 3 is driven out of the nose portion 3 by the hitting mechanism, the connecting nail N is pushed forward by the pusher mechanism 5 and the auxiliary pusher mechanism 14, and the pusher mechanism 5 moves forward along the magazine 4. I do.
The detector 13 detects the pusher mechanism 5 at a position where the pusher mechanism 5 has further advanced beyond the area of the connecting nail accommodating portion 8, and outputs a detection output signal to the control device. The pusher mechanism 5 is caused to retreat by this detection signal, and retreats to a position further behind the area of the connecting nail accommodating portion 8.

At the same time, the second separating plate 10 is advanced into the connecting nail accommodating portion 8 so that the lowermost connecting nail N received by the first separating plate 9 and the next connecting nail superimposed on it. N, and separates the lowermost connecting nail N from the other connecting nails N. After this, the first separate plate 9
Is retracted from the connection nail accommodating portion 8 to release the lowermost connection nail N and supply it into the magazine 4 by dropping. Further, after this, the pusher mechanism 5 is operated forward to engage with the rear end of the connecting nail and push the connecting nail forward. At the same time as the pusher mechanism 5 moves forward, the first separating plate 9 is advanced into the connecting nail accommodating portion 8 and then the second separating plate 1 is moved.
The withdrawal operation from the inside of the connecting nail housing portion 8 is performed, and the lowermost connecting nail of the connecting nails in the connecting nail housing portion 8 is received by the first separate plate 9.

[Brief description of the drawings]

FIG. 1 is a top view of a nailing machine having a connecting nail supply device according to the present invention.

FIG. 2 is a front view showing related parts of a pusher mechanism of the nailing machine of FIG. 1;

FIG. 3 is a sectional view taken along line AA in FIG.

FIG. 4 is a diagram showing a connecting nail supply unit from the direction of arrow B in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nailer 2 Housing 3 Nose part 4 Magazine 5 Pusher mechanism 6 Cylinder device 7 Connecting nail supply unit 8 Connecting nail accommodating part 9 1st separate plate 10 2nd separate plate 13 Detector 14 Pusher

Claims (1)

(57) [Scope of request for utility model registration] 1. A linearly extending magazine for accommodating a connecting nail in which a predetermined number of nails are connected in a straight plate shape so that the nail axes are parallel to each other, and the connecting nail loaded in the magazine is moved to a magazine by a pusher mechanism. A nail driving machine adapted to sequentially supply to a nail injection unit disposed at a tip end of the magazine, wherein a connecting nail accommodating portion communicating with the inside of the magazine through an opening formed in a part of the magazine side wall is formed, In the connecting nail accommodating portion, a first separate plate for receiving the lowermost connecting nail accommodated in the connecting nail accommodating portion, a lowermost connecting nail and a next connecting nail received by the first separate plate are provided. And a detector for detecting that the pusher mechanism has moved forward beyond the connecting nail accommodating portion, and the pusher mechanism is retracted by a detection output of the detector. Move Together with the first and second separation plate supply device connected nails which is adapted to automatically supply the connected nails in the connected nails accommodated portion is operated alternately in the magazine.