JP2001071280A - Nail supplying mechanism in nailing machine for connecting nail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a connecting nail without a lever operation or the like when removing the connecting nail is required in the middle of work. SOLUTION: This device is provided with a fixed guide wall 6 constituting one wall of a nail feeding passage 3 guiding connecting nails between a magazine 2 storing the multiple connecting nails in parallel, and a nose part 1, and a door member 4 facing to the fixed guide wall 6 at a prescribed gap, and constituting the other wall of the nail feeding passage 3. This door member 4 is provided with a separator 11 sliding between a position entering into the magazine 2 and a position retracting from the magazine 2. The separator 11 holds feeding mean which enters into the nail feeding passage 3, and engages with a nail shaft in the magazine 2 and the nail feeding passage 3. An actuating mean provided behind the fixed guide wall 6 drives the separator 11 resiprocatingly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail feeding mechanism in a nailing machine for a connecting nail, which feeds a connecting nail having a nail shaft closely attached to a nose portion from a magazine capable of accommodating the connecting nails in parallel.

[0002]

2. Description of the Related Art In general, when connecting nails are stored in a magazine in a side-by-side state, in order to feed the nails from the magazine to a nail supply path and supply the nails to a nose portion, usually, the first innermost connection is used. Both sides of the nail were transported while being held down by a separate member and a feed member. Separate members are 1st and 2nd
The first connecting nail is sent to the nose portion side while being clamped by the separate member and the feeding member.

[0003]

However, when it is desired to change the type of the connecting nail during the nail driving operation, it is necessary to remove the connecting nail remaining inside the magazine and in the nose portion. In this case, the release lever on the back side of the magazine must be operated to release the pressing by the feed member and loosen the clamp. Therefore, there is a problem that workability is poor.

[0004] The present invention solves the above-mentioned problems and can reliably supply the connecting nails. When the connecting nails need to be removed during the operation, the connecting nails can be easily prepared without the need for lever operation. It is an object of the present invention to provide a nail supply mechanism in a nailing machine for connecting nails, which can eliminate the problem.

[0005]

In order to solve the above problems, a nail feeding mechanism in a nailing machine for a connecting nail according to the present invention is capable of accommodating a plurality of connecting nails in which a number of nails are connected in a straight line in a parallel state. From a suitable magazine, in a nailing machine for connecting nails, which is configured to continuously supply the connecting nail to the nose portion,
A fixed guide wall which forms one wall of a nail supply path for guiding the connecting nail between the magazine and the nose portion, and which faces the fixed guide wall at a predetermined interval to form the other wall of the nail supply path. A door member, wherein the door member is provided with a separator slidable between a position for entering the magazine and a position for retracting from the magazine, and the separator is capable of entering a nail supply path. And a feeding means capable of engaging with a nail shaft in a magazine and a nail supply path, and the separator is reciprocally driven by an operating mechanism installed on the back side of the fixed guide wall.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a part of a nailing machine in which a nail feeding mechanism according to the present invention is implemented, and a nail supply path formed between a cylindrical nose portion 1 for nailing and a magazine 2. 3 shows a state where a door member 4 constituting one of the guide walls is opened. As shown in FIG. 2, a plurality of connecting nails 10A, 10A,
B and 10C are stored in parallel. The outer connecting nails 10 </ b> B and 10 </ b> C are urged toward the inner fixed guide wall 6 by the action of the pusher spring 5.

[0007] A feed piston / cylinder mechanism 7 (operating mechanism) is installed along the nail supply direction on the back side of the fixed guide wall 6 constituting the other guide wall of the nail supply path 3, and the piston 8a is attached to the piston 8a. 3 and 4 are attached to the connected piston rod 8, and the cooperation arm 9 is provided so as to straddle the upper surface of the nail supply path 3 and face the tip to the door member 4 side. I have.

[0008] A separator 11 is slidably carried on the door member 4 along the nail supply path 3 so as to face the nail supply path 3. The separator 11 is constantly urged forward by a spring 20. Further, the rear portion 11a of the separator 11 is movable within a range from a position where the separator 11 enters the magazine 2 to a position where the separator 11 completely escapes from the magazine 2. The connecting piece 12 of the separator 11 projecting upward is engaged with the cooperation arm 9. That is, since the separator 11 is constantly urged forward by the spring 20, the separator 11 is located at the front side as shown in FIG. 1 not only when there is no connecting nail but also when the door member 4 is opened. Therefore, when the door member 4 is closed after being opened, the connecting piece 12 projecting above the separator 11 and the cooperation arm 9 are engaged. By this engagement, the separator 11 is reciprocated by the operation of the feed piston / cylinder mechanism 7.

Next, the first feeding means 1
The third and second feeding means 14 are provided in front and rear, respectively. The first feeding means 13 is rotatably supported by a pin in a recess formed in a front portion of the separator 11. The first feeding means 13 is formed with three claws 15, 16, 17 (see FIG. 1) vertically along the axial direction of the nail, and protrudes into the nail supply path 3 to extend the length of the nail shaft. It is set so that it can be held down the axis accordingly.

The rear portion 11a of the separator 11 is formed in an inclined shape having a narrow width in the vertical direction and a thin end.
This portion enters the magazine 2 and separates the connecting nails accommodated in the magazine 2 in parallel. A second feeding means 14 is rotatably supported by a pin in a recess formed at the rear of the separator 11.

A plurality of claws 15, 16, 17 are formed at the tip of the first feeding means 13, and a claw 18 for entering the magazine 2 is formed at the tip of the second feeding means 14. Then, as described in detail later, the separator 1
With the reciprocation of 1, the claws of the first feeding means 13 and the claws of the second feeding means 14 cooperate with each other to engage with the connecting nails in the magazine 2 and the connecting nails in the nail supply path 3. The connecting nail is supplied toward the nose.

The first feeding means 13 and the second feeding means 1
Numerals 4 are urged in the direction in which the claws protrude into the supply path by the action of a torsion coil spring (not shown) mounted on each pin. 19 is a check nail.

Next, the operation of the nail supply state will be described with reference to FIGS. First, FIG. 5 shows a state in which three connecting nails 10A, 10B, and 10C are loaded in the magazine 2, and the piston rod 8 is operated at the front end position, whereby the separator 11 is at the foremost position close to the nose portion 1. Are located.

Here, when the nailing machine is operated by idle driving, FIG.
As described above, air is introduced into the front chamber of the feed cylinder 8b, and the feed piston 8a is driven backward. Thereby, the rear end of the separator 11 enters the magazine 2 and separates a series of connecting nails 10A from another series of connecting nails 10B.
At this time, a relationship is established in which the claw 18 of the second feeding means 14 is engaged with the leading nail of the divided connecting nail 10A.

During the return stroke of the striking mechanism after the idling operation,
As shown in FIG. 7, the air in the front chamber of the feed cylinder is exhausted,
The piston rod 8 is advanced by the action of a spring (not shown) arranged in the feed cylinder 8b. Along with this, the separator 11 moves forward and the claw 1 of the second feeding means 14
The connecting nail 10 </ b> A engaged with 8 is moved forward. The connecting nail 10A is a check nail 1 disposed on the fixed guide wall 6.
9 is engaged.

Similarly, the separator 11 is advanced in the return stroke of the idle driving operation several times, and the connecting nail 10A engaged with the claws of the two feeding means 13 and 14 is advanced as shown in FIG. At the position where the leading nail of the connecting nail 10A is pushed into the nose portion 1, the leading nail contacts the wall of the nose portion 1 to stop the advancement of the connecting nail 10A, thereby engaging with the nail. The first feeding means 13 and the second feeding means 14 are stopped, and the advance of the separator 11 is also stopped. At this time, the connecting nail 10A is pressed forward via the pawls 15, 16, 17, and 18 of the feeding means by the action of the spring force acting on the feeding piston 8a.

In the above state, the actual driving of the connecting nail 10A supplied into the nose portion 1 is started. After that, separator 1
Reference numeral 1 denotes a reciprocating operation at the last retreat position and a stroke corresponding to the connecting pitch of one connecting nail for each actual hit to supply connecting nails one after another to the nose portion 1.

Next, the first connecting nail 10 in the magazine 2
When A is consumed, the second connection nail 10B is continuously supplied by the reciprocation of the separator 11, and thereafter the third connection nail 10C is continuously supplied, so that the driving operation can be continued.

As described above, according to the nail supply mechanism,
The feeding means 13 and 14 are carried on the separator 11, and the feeding means 13 and 14 are moved together with the separator 11 by reciprocating the separator 11 by the feeding piston / cylinder mechanism 7. And the connecting nail is supplied to the nose portion 1 side, so that the nail can be driven continuously,
When it is necessary to change the type of the connecting nail during the nail driving operation, the separator 11 and the feeding means 13 and 14 are separated from the connecting nail by opening the door member 4 as shown in FIG. Therefore, the connecting nail remaining in the magazine 2 and the nose portion 1 can be easily removed.

The feeding means is not limited to the example provided on the separator 11 as described above. For example, as shown in FIG. 9, the first feed means 13 and the second feed means 14 may be carried on the piston rod 8 and the separator 11 one by one. In this case, a long hole 21 is formed in the piston rod 8, and the shaft 22 of the first feeding means 13 is rotatably and slidably attached to the long hole 21, and the shaft 22 is always urged forward by a spring 23. Configuration. Even with such a configuration, the connecting nail can be sequentially supplied to the nose portion 1.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a part of a nailing machine in which a nail feeding mechanism according to the present invention is implemented.

FIG. 2 is a cross-sectional view of the nailing machine with a door member closed.

FIG. 3 is a longitudinal sectional view of the nailing machine cut by a first feeding means.

FIG. 4 is a longitudinal sectional view of the nailing machine cut by a second feeding means.

FIG. 5 is a sectional view showing a state where a connecting nail is loaded in a magazine;

FIG. 6 is a sectional view showing a state in which a feed piston is retracted.

FIG. 7 is a sectional view showing a state in which the feed piston has returned and advanced.

FIG. 8 is a cross-sectional view showing a state where the feed piston has reciprocated twice and has returned again.

FIG. 9 is an explanatory view of another mounting mode of the feeding means.

[Description of Signs] 1 Nose part 2 Magazine 3 Nail supply path 4 Door member 11 Separator 13 First feed means 14 Second feed means

Claims (1)

[Claims] 1. A nailing machine for connecting nails, wherein a plurality of connecting nails in which a plurality of nails are connected in a straight line are continuously supplied to a nose portion from a magazine capable of accommodating a plurality of connecting nails in parallel. A fixed guide wall forming one wall of a nail supply path for guiding a connecting nail between the magazine and the nose portion; and a second wall of the nail supply path facing the fixed guide wall at a predetermined interval. A door member that slides between a position to enter the magazine and a position to retract from the magazine, wherein the separator can advance to the nail supply path. And a feed mechanism capable of engaging with a nail shaft in a magazine and a nail supply path, and reciprocatingly driving the separator by an operation mechanism installed on the back side of the fixed guide wall. For nailing machines for nails Nail feeding mechanism.