JPH0723502U - Nail supply device for nailing machine for loose nails - Google Patents

Abstract

(57) [Summary] [Constitution] In the nose portion 4, a supply groove 6 for supplying a nail into the guide hole and a nail supply cavity 7 for supplying a nail into the supply groove 6 are formed. Is provided with an escape plate 8, which shields the escape plate 8 between the nail supply space 7 and the supply groove 6 and forms a wall surface on the end face thereof which is open to the supply groove 6 side of the driver guide hole 3. First position and nail supply void 7
The nail is supplied to the nail 6 and is reciprocated between the nail feeding space 7 and the second position for opening the feeding groove 6 so that the nail can enter the feeding groove 6. [Effects] When the escape plate 8 is reciprocated between the first position and the second position, the nail supplied into the nail supply space 7 enters the supply groove 6 and then the driver guide hole 3 Be sure to be supplied in. The end surface of the escape plate 8 at the first position serves as a wall surface on the open side of the driver guide hole 3, and nails are reliably driven without the nails popping out.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nail supply device for a nailing machine for loose nails, in which nails that are not connected to other nails, so-called loose nails, are aligned and then fed into the driver guide holes of the nose portion and driven.

[0002]

[Prior art and its problems]

 In this type of nailing machine, the nail fed from the nail feeding mechanism to the nose portion is directly supplied to the driver guide hole for nail driving, and the nail is fed into the driver guide hole to the nose portion. An opening is formed to guide the nail into the driver guide hole. The opening is for receiving the nail in the driver guide hole and is always open.

Therefore, when the nail fed into the driver guide hole is driven by the driver, if the nail is fed into the driver guide hole in an imperfect posture, the nail will be broken when the driver hits the head portion of the nail. Since it may protrude from the opening to the outside of the driver guide hole, there is the inconvenience that accurate nailing cannot be performed or the nailing machine is damaged.

[0004]

[The purpose of the device]

 According to the present invention, the nails of the nailing machine for loose nails can surely feed the nails into the driver guide hole and also close the opening of the driver guide hole after the feeding so as to surely drive the nails by the driver. The purpose is to provide a supply device.

[0005]

[Means for achieving the purpose]

 In order to achieve the above object, a nail supply device for a nailing machine for loose nails according to the present invention comprises a driver coupled to a predetermined striking mechanism for striking a nail, and a tubular shape for slidably guiding the driver. And a nose portion having a driver guide hole formed therein, and a loose nail supplied to the inside of the driver guide hole is hammered by the driver, wherein the nose portion has a driver guide hole at one end side. A supply groove for supplying nails is formed in the driver guide hole so as to communicate therewith, and a nail supply space for supplying nails to the supply groove is formed separately from the driver guide hole and communicating with the supply groove. An escape plate that moves in the direction of contact with and away from the driver guide hole is arranged in the supply groove.The escape plate shields the space between the nail supply space and the supply groove, and the end face of the escape plate forms the driver guide hole. Companion A first position that forms a wall surface on the groove side and a second position that opens between the nail supply space and the supply groove so that the nail supplied to the nail supply space can enter the supply groove. It is characterized in that it is reciprocally operated to and from the position.

[0006]

[Action and effect]

 When the escape plate is in the first position, the gap between the nail supply space and the supply groove is blocked. Therefore, when one loose nail is fed into the nail supply space, the loose nail is received by the escape plate. Next, when the escape plate is driven in the direction away from the driver guide hole and moved from the first position to the second position, the space between the nail supply cavity and the supply groove is opened, and the loose nail in the nail supply cavity is opened. Enters the supply groove. After that, when the escape plate is driven in the direction approaching the driver guide hole and moved from the second position to the first position, the gap between the supply space and the supply groove is shielded again, and at the same time, the variation in the supply groove The nail is pushed by the escape plate and is reliably supplied to the driver guide hole.

Next, when the escape plate is stopped at the first position, the end surface of the escape plate forms a wall surface that is open to the supply groove side of the driver guide hole. Therefore, the loose nails supplied into the driver guide hole by the escape plate are in a state of being confined in the driver guide hole. Therefore, when the driver is driven to hit the head of the loose nail, the loose nail is driven out along the driver guide hole, and the phenomenon such as popping out of the nail does not occur and the nail is reliably driven.

In addition, by setting the escape plate to move to the first position when the nail is driven and push the nail into the driver guide hole, the nail is supplied into the nail supply space. Since the nail in the nail supply space is supplied to the driver guide hole by the reciprocating movement of the escape plate, the nail supply operation can be performed in a short time, and the nail driving time interval can be shortened, thus improving work efficiency. Is possible.

[0009]

【Example】

 In FIG. 1, reference numeral 1 indicates a nailing machine body for loose nails. The nailing machine main body 1 is arranged sideways, and a driver 2 connected to a predetermined striking mechanism (not shown) for striking a nail at its tip and a slidable guide for the driver 2. A nose portion 4 having a cylindrical driver guide hole 3 is provided.

In the nose portion 4, there are provided a supply groove 6 for supplying the loose nail 5 into the driver guide hole 3 and a nail supply space 7 for communicating the supply groove 6 and supplying the nail to the supply groove 6. Each is formed. A chuck 25 for guiding and holding the nail in the axial direction of the driver is arranged at the tip of the nose portion 4.

As shown in FIG. 2, the supply groove 6 is arranged in parallel with the driver guide hole 3 on one end side.

The nail supply space 7 is formed at a position apart from the driver guide hole 3 and communicates with the upper part of the supply groove 6. Further, the nail supply space 7 is connected to a nail alignment feed mechanism (not shown) via a nail supply tube or the like. From the nail alignment feed mechanism, the loose nails 5 are sequentially fed to the nail supply space 7 as shown by the arrow in FIG.

Next, an escape plate 8 is arranged in the supply groove 6. That is, as shown in FIGS. 2 and 3, an L-shaped cylinder mounting plate 9 is fixed to the nose portion 4 in a direction orthogonal to the driver guide hole 3, and the air cylinder device 10 is attached to the cylinder mounting plate 9. It is fixed. An escape plate 8 is fixed to the tip of the piston rod 11 of the air cylinder device 10. One side portion 8a of the escape plate 8 is formed so as to be loosely fitted in the supply groove 6, and its tip end surface faces the driver guide hole 3. A receiving groove 12 is formed in the other side portion 8b of the escape plate 8, and a head portion 13 of the piston rod 11 is fixed to the receiving groove 12 so as not to slip out.

The escape plate 8 is provided by an air cylinder device 10 so as to be movable toward and away from the driver guide hole 3. That is, the escape plate 8 shields the space between the nail supply space 7 and the supply groove 6 and forms one side wall of the driver guide hole 3 at its end face (the position shown in FIG. 2), and the nail plate. The nail supplied to the supply space 7 reciprocates between the nail supply space 7 and a second position (position in FIG. 3) that opens between the supply grooves 6 so that the nail can enter the supply groove 6. Is set.

In the above structure, when one nail 5 is fed from the nail supply tube or the like into the nail supply space 7 by operating the nail supply mechanism, the individual nail 5 will be It is received by the escape plate 8 as shown in FIG. Next, the air cylinder device 10 is actuated to drive the escape plate 8 in a direction away from the driver guide hole 3, and as shown in FIG. 3, the escape plate 8 is moved from the first position to the second position. The space 7 and the supply groove 6 are opened, and the loose nail 5 in the nail supply space 7 enters the supply groove 6 (it falls due to the action of gravity). After that, as shown in FIG. 2, when the escape plate 8 is driven again toward the driver guide hole 3 to move it from the second position to the first position, the space between the supply space 7 and the supply groove 6 is shielded. At the same time, the loose nail 5 (shown by the dotted line) is pushed by the escape plate 8 and is reliably supplied to the driver guide hole 3. When the escape plate 8 stops at the first position, the end surface of the escape plate 8 forms a wall surface that is open to the supply groove 6 side of the driver guide hole 3. Therefore, the loose nail 5 in the driver guide hole 3 is in a state of being confined in the driver guide hole 3. Therefore, when the driver 2 is driven and the head of the loose nail 5 is hit, the loose nail 5 is driven out along the driver guide hole 3 and the phenomenon such as the nail popping out does not occur and the nail is securely driven. Is performed.

After the driving of the nails is completed, the driver 2 is returned, and at the same time, the escape plate 8 is returned from the first position to the second position, and the operation of the escape plate 8 causes the nail supply space 7 to move into the supply groove. 6 and the loose nail 5 in the nail supply space 7 enters the supply groove 6. Then, when the nail is driven, the escape plate 8 again moves to the first position to push the nail into the driver guide hole 3, and then the nail is supplied into the nail supply space 7.

As shown in FIG. 1, a contact guide 16 for slidably guiding the contact member 15 is formed on one side of the front end portion of the nose portion 4, and the contact guide 16 has a contact member 16. 15 is slidably arranged in parallel with the driving direction of the loose nail 5. A contact plate 17 is formed at the front end of the contact member 15 so as to project toward the nose portion 4, and a receiving hole 18 for receiving the tip of the nose portion 4 is formed in the contact plate 17. A spring 19 is interposed between the base end of the contact member 15 and the contact guide 16, and the contact plate 17 is constantly urged so as to protrude from the tip of the nose portion 4 as shown by the dotted line in FIG. Has been done.

As shown in FIGS. 1 to 3, the plate 20 to be sensed is fixed to the base end of the contact member 15, while the sensor mounting plate 21 is provided on the side of the nose 4 to provide a sensor. 22 is fixed, and the plate 20 to be sensed is set to cross the sensor 22 when the contact member 15 slides.

Therefore, when the tip of the nose portion 4 of the nail driving machine is pressed against the surface of the material to be driven, the contact member 15 moves relatively against the spring 19 and the tip of the nose portion 4 moves to the surface of the material to be driven. When it is pressed against the surface and is ready for driving (in the state shown by the solid line in FIG. 1), the sensed plate 20 crosses the sensor 22, and the nail driver is driven by receiving this signal. With this configuration, it is possible to automatically drive the nail driving in conjunction with the operation of pressing the nail driving machine against the driven material.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a nail supply device of a nailing machine for loose nails according to the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an explanatory view of an operation mode of the nail supply device.

[Explanation of symbols]

 1 nailing machine main body 2 driver 3 driver guide hole 4 nose part 5 loose nail 6 supply groove 7 nail supply space 8 escape plate

Claims (1)

[Scope of utility model registration request] 1. A driver guide hole having a driver coupled to a predetermined striking mechanism for striking a nail and a nose portion having a tubular driver guide hole for slidably guiding the driver. In the nailing machine for loose nails, in which the loose nails fed to the driver are hammered by the driver, the nose portion has a supply groove communicating with the driver guide hole at one end side and supplying the nail into the driver guide hole. In addition, there is formed a nail supply space which is separated from the driver guide hole and communicates with the supply groove to supply a nail to the supply groove, and the escape plate which moves in the contact guide direction to the driver guide hole is formed in the supply groove. And a first position where the escape plate shields the space between the nail supply space and the supply groove to form a wall surface on the end face which is open to the supply groove side of the driver guide hole; Nail supply A nail nailing machine for loose nails, characterized in that it is reciprocally operated between a nail supply cavity and a second position which opens between the supply grooves so that the nails supplied to the supply place can enter the supply groove. Nail supply device.