JPS6216291Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention continuously supplies connected nails into an automatic nail loading device provided separately from a nail gun, and stores the connected nails so that they can be cut to a predetermined length. The present invention relates to a nail loading device for a nailer, which feeds and loads a fixed amount of connected nails as required into a magazine formed in the nailer.

Generally, a nailer uses connecting nails connected by a flexible connecting material such as a metal wire rod or a synthetic resin wire rod, and the connecting nails are loaded into a magazine provided in the nailer. Nailing work is performed by sequentially feeding the leading nails to the injection port by a nail feeding mechanism.
Whether this type of nailing machine is driven directly by the operator or automatically driven by NC control, etc., the size of the magazine is determined so that the work can be done quickly and easily. Since the size cannot exceed a certain level, the amount of nails that can be loaded into the magazine is limited, and therefore, for example, in operations that require a large amount of nails, the magazine must be frequently replenished with connected nails. However, loading the connecting nails is extremely time-consuming and labor-intensive, impairing the smooth nail driving operation. Therefore, as a solution to this problem, there are some devices that feed loose nails one by one using a parts feeder or the like and then feed them to the injection port of a nailer using an air hose, but these devices are difficult to use. There were problems such as the size of the nail gun, and the operating range of the nail gun was small and limited.

The present invention aims to solve the above-mentioned drawbacks and, in particular, to propose a nail loading device in a nail gun that can automatically load nails into the magazine of the nail gun.

An example of implementing the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 indicates a nail loading device. This nail loading device 1 mainly includes a nailing machine 2 and a nailing machine 2.
The automatic nail loading device 3 is provided separately from the nail gun 2 and is configured to feed and load nails into the nail gun 2.

A magazine 6 in which a nail supply path 5 is formed is integrally connected to the nail injection port 4 of the nail gun 2, and a nail feeding mechanism a and a non-return claw for setting are provided near the injection port 4 of the magazine 6. 7 and the non-return claw retracting device b are provided. The nail feed mechanism a includes an air cylinder 8, a feed pawl 10 that is pivoted to the tip of a piston rod 9 of the air cylinder 8, and is reciprocated by the operation of the cylinder 8, and is disposed at a position facing the feed pawl 10. It is composed of a non-return pawl 11.
The feeding claw 10 connects the connecting nail 12 in the nail supply path 5 during forward movement.
The check pawl 11 is used to prevent the connecting nail 12 from moving backward in the magazine 6 when the feed pawl 10 is retracted. It is formed so that it can move forward and backward within the nail supply path 5 by a spring 21. The setting non-return claw 7 is used to hold the connecting nail 1 fed from the automatic nail loading device 3.
2, and smoothly feeds the leading nail of the connecting nails 12 into engagement with the feeding pawl 10, and is disposed behind the nail feeding mechanism a with a spring 25 interposed therebetween. In addition, the retraction device b operates the setting non-return claw 7 so that the connecting nail 12 fed from the automatic nail loading device 3 does not engage with the setting non-return claw 7 when the connecting nail 12 is loaded and set. A solenoid 13 is attached to the opposite side of the non-return claw 7 from the magazine 6, and the connecting nail 12
At the time of loading set, electricity is applied to draw the check pawl 7 toward the solenoid 13, and the check pawl 7 is retracted from the magazine 6.

Note that the evacuation device b is not necessarily limited to one that uses the solenoid 13. Any suitable known means such as a lever or cylinder device may be used.

Further, the connecting nails 12 are connected to the nails 12a, 12 by a flexible connecting material 22 such as a metal wire or a synthetic resin wire.
a, 12a... are connected.

On the other hand, the automatic nail loading device 3
A cylindrical magazine 1 that accommodates continuous supply of
4 and the connecting nail 12 in the magazine 14 by the nailing machine 2.
It is comprised of a feeding mechanism c that feeds and loads the magazine 6, and a cutting mechanism d that cuts the connecting nails 12 fed from the feeding mechanism c to a predetermined length. The magazine 14 is provided with a connecting nail accommodating portion 14a that accommodates a large amount of connecting nails 12 therein so as to be able to continuously supply them. The feeding mechanism c feeds and loads a predetermined amount of the connecting nails 12 in the magazine 14 into the magazine 6 of the nailing machine 2, and includes a drive motor 17 and a feed turret 1 fitted into the output shaft of the drive motor 17.
The feed turret 18 is driven by a drive motor 17 to feed the connecting nails 12 in the magazine 14 on the loading device side into the magazine 6 on the nail gun side. Furthermore, the cutting mechanism d cuts the connecting material 22 at the rear end of the connecting nail 12 loaded in the magazine 6, and
A cutter 24 is provided at the tip of a piston rod 23a, and the cutter 24 is driven by operating the cylinder 23. A nail sensor 20 detects the remaining amount of connecting nails 12 loaded in the magazine 6.

Note that the feeding mechanism c is not limited to the above configuration. Any other known feeding mechanism may be used as long as it is configured to feed the connecting nail 12. The same applies to the cutting mechanism d.

The nail loading device 1 has the above-mentioned configuration, and its usage will be explained next. First, by driving the drive motor 17 of the automatic nail loading device 3, the nail loading device 1 is inserted into the output shaft of the drive motor 17. The inserted feed turret 18 rotates at the same time, and the connecting nail 12 housed in the magazine 14 is fed and loaded into the magazine 6 by the feed turret 18. Then, when the leading nail 12a of the connected nails 12 fed into the magazine 6 reaches the front of the feeding claw 10 of the nail feeding mechanism a, the nail sensor 20 detects this. At this time, since a predetermined length and a predetermined amount of connecting nails 12 are loaded into the magazine 6, a stop signal is given to the drive motor 17 from the nail sensor 20 to stop the drive motor 17. , simultaneously actuates the cutting mechanism d and connects the connecting nail 12.
The connecting material 22 is cut to a predetermined length. In addition, when the drive motor 17 is activated and the feed turret 18 is rotated to feed the connecting nails 12 into the magazine 6 when loading the connecting nails 12, the setting non-return check The pawl retracting device b is activated, and the setting check pawl 7 is drawn to the solenoid 13 and is retracted from the magazine 6. For this reason, feeding and loading of the connecting nails 12 is performed smoothly. Furthermore, when the loading of the connecting nails 12 is completed, the drive motor 17 is stopped, and contrary to the above, the operation of the setting non-return nail retracting device b is stopped, and the spring force of the spring 25 causes the nail supply path 5 of the magazine 6 to The non-return claw 7 protrudes and engages with the loaded connecting nail 12.

Next, the connecting nail 1 sent into the magazine 6
2 into the nail injection port 4 of the nail gun 2,
As shown in FIG. 3, by operating the air cylinder 8 of the nail feeding mechanism a, the air cylinder 8
The piston rod 9 is reciprocated to move the feed pawl 10 forward and backward. When the feed claw 10 moves forward,
It engages with the leading nail 12a of the connecting nails 12, and sequentially supplies the connecting nails 12 to the nail injection port 4. Note that when the feed claw 8 moves backward, the connecting nail 12 initially supplied from the automatic nail loading device 3 into the magazine 6 is not engaged with the non-return claw 11, but the non-return claw 7 for setting , the connecting nail 12 does not move backward when the feeding claw 8 moves backward. The leading nail 12a is engaged with the check pawl when the feed pawl 8 reciprocates once, and is supplied to the injection port 4 by the second reciprocation, and the reverse movement of the connecting nail 12 is prevented by the check pawl 11. be done. In this way, the connecting nails 12 loaded into the nail injection port 4 are sequentially driven by the nail driver 2. In addition,
If the number of connected nails 12 loaded in the magazine 6 decreases during nail driving, the nail sensor 20 detects the remaining amount, and the nail driving is interrupted, and the nail automatic operation is started as described above. All that is required is to drive the loading device 3 to feed the connecting nails 12 into the magazine 6.

Note that when the connecting nail 12 is fed and loaded into the magazine 6, a means may be provided for causing the tip of the connecting nail 12 to be retracted from the magazine 6 by the feeding claw 10 and check claw 11 of the nail feeding mechanism a. In this case, the connecting nail 12
Since the non-return claw 11 engages with the leading nail during loading and setting, the above-mentioned non-return claw 7 for setting is not required.

Further, according to the above-mentioned nail loading device, nails can be easily and reliably loaded into a nailer, and work can be done quickly and easily. In addition to automatically controlling the nail driving operation using NG control, etc., this nail driver is equipped with a detection means for detecting the remaining number of nails in the magazine, and the detection means detects the remaining amount of nails and performs the nail driving operation. A nailing system can be obtained in which the operation of the machine is stopped, the nailing machine is moved to an automatic nail loading device, a new connected nail is fed and loaded from the automatic loading device, and the nailing operation is continued again. .

As explained in detail above, the nail loading device according to the present invention connects and forms a magazine to the injection port of a nailer, and also automatically inserts connected nails into the magazine separately from the nailer. Since an automatic nail loading device is provided, the nimbleness, quick operability, and operability of the nail gun are not impaired, so the work range can be expanded. Moreover, since nails can be resupplied and loaded automatically, the efficiency of nail driving work can be greatly improved. In addition, the nail feeding mechanism installed near the ejection port of the magazine provided in the nail gun has a structure in which a feeding pawl is pivotally attached to the tip of the cylinder device and a non-return pawl is provided at a position corresponding to the feeding pawl. , facilitates the connecting nails loaded into the magazine;
Moreover, it has the practical effect of being able to reliably guide and load the nail gun into the injection port of the nail gun. Further, the present invention provides a setting non-return claw and its retracting device separately from the nail feeding mechanism, so that connected nails can be smoothly fed and loaded from an automatic nail loading device to a nailing machine. In addition, when the connected nails in the magazine are first loaded into the injection port of the nail gun with the nail feeding mechanism, the connected nails in the magazine can be loaded into the nail gun with the nail feeding mechanism first. When loading the magazine into the ejection port, it is possible to prevent the connecting nails from moving backwards in the magazine, and the connecting nails can be reliably fed to the ejection port. Therefore, the practical effects of the present invention are very large.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the invention,
FIG. 1 is a side view of the main parts of the nail loading device according to the present invention, FIG. 2 is a plan view with a part of FIG. 1 omitted, and FIG. 3 is an explanatory diagram of the nail feeding mechanism. Code 1... Nail loading device, 2... Nailer, 3...
Nail automatic loading device, 4... Injection port, 5... Nail supply path, 6... Magazine, 7... Non-return claw for setting, 8
...Air cylinder, 10...Feeding claw, 11...Return claw, 12...Connecting nail, 13...Solenoid, 1
4... Magazine, a... Nail feeding mechanism, b... Non-return claw retraction device for setting, c... Feeding mechanism, d... Cutting mechanism.

Claims (1)

[Scope of utility model registration request] A nail driver having a magazine connected to a nail injection port is provided with an automatic nail loading device that feeds and loads connected nails connected by a flexible connecting member into the magazine. A feed pawl that reciprocates in the vicinity of the ejection port and engages with a connecting nail in the magazine during forward movement to sequentially supply the first nail to the ejection port, and a reverse movement of the connecting nail when the feed pawl moves backward. a nail feed mechanism consisting of a non-return claw that prevents the nail from moving backward; a setting non-return claw that prevents the connected nails fed by the automatic nail loading device from moving backwards; The automatic nail loading device includes a magazine that stores connected nails in a continuous manner, and a feeder that feeds and loads the connected nails in the magazine into the magazine of the nail gun. 1. A nail loading device for a nail driver, comprising: a feeding mechanism; and a cutting mechanism that cuts connected nails fed from the feeding mechanism to a predetermined length.