JPS60261633A - Nail making machine - Google Patents

Abstract

PURPOSE:To enable the reduction in the production processes of a forked nail and the cost down by obtaining the rough shaped material of a forked nail with fitting oppositely a pair of cutting edges having a > shaped cutting part against the progressing direction of a nail material, to the cutting mechanism of a nail making machine. CONSTITUTION:The straightening, regular size transfer, cutting and head making of a nail material F are performed, using a nail making machine having a straightening mechanism A consisting of straightening rolls 2, 3, transferring mechanism B, cutting mechanism C and head making mechanism D. In this case a pair of cutting edges 13, 14 having a > shaped cutting part against the progressing direction of a nail material F is provided oppositely to the cutting mechanism C, and a rough material E' for nail consisting of a head part 39, body 40 in the prescribed length and leg opening part 41 cut in > shape is manufactured. The rough material E' is subjected to a groove 42 working separately and a necessary forked nail is made. A forked nail is thus manufactured in less processes and at lower cost.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a nail making machine used for manufacturing bifurcated nails.

(b) Conventional technology A conventional bifurcated nail having a head and two split legs is made by manufacturing the head and legs separately, and then welding the two legs to a single head. After manufacturing the cylindrical body of the bifurcated nail or the head member, the cylindrical body is divided into two by cutting a groove in the center along the longitudinal direction of the cylindrical body, thereby forming two legs. It was manufactured by manufacturing the legs and then chamfering the end portions of the legs.

(c) Problems to be Solved by the Invention However, with any of the conventional means, the number of steps required to produce a bifurcated nail is large, and the bifurcated nail has the disadvantage of being expensive.

(d) Means for Solving the Problems Therefore, the technical problem of the present invention is to provide a nail making machine that can manufacture bifurcated nails in fewer steps, thereby reducing the manufacturing cost of bifurcated nails. It is in.

The technical means of the present invention to solve this technical problem is to provide a nail making machine having a straightening head mechanism consisting of a plurality of straightening rolls for straightening the nail material, in which the nail head is straightened in the opposite direction to the traveling direction of the nail material. A diagonal cutting blade having a letter-shaped cutting portion is attached to the cutting mechanism so as to face each other.

(e) Effect: According to this technical means, the above-mentioned nail making machine is used to produce long nails of a predetermined size, that is, a body is provided at the head, and the tip of the body is cut in an inverted 〈 shape. Since nail material of a predetermined length can be manufactured, a bifurcated nail can be formed by simply cutting grooves in this nail material in the next step.

Therefore, the bifurcated nail can be manufactured in fewer steps than conventional means, and the manufacturing cost of the nail can be reduced.

(f) Example Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a plan view showing an embodiment of the nail making machine according to the present invention. This nail making machine includes a straightening mechanism (A) for straightening a long iron nail material (F), and a a transfer mechanism (B) that sequentially transfers the nail material (F) by a predetermined size; a cutting mechanism (C) that cuts the nail material (F); and a mold head mechanism (C) that creates the head of the nail material (F). D).

It goes without saying that a paper making machine having substantially the same structure may also be used.

The Jingji straightening TF mechanism (A) is a nail material (F) on the roll stand (1).
Three rolls (2)... and two rolls (3) (3) are rotatably attached to the other side, and the nail material (F) is attached to these rolls (2). ) (3)
By passing the nail material (F) through the nail, distortions, bends, etc. of the nail material (F) are corrected and straightened.

On the other hand, a drive M (5) equipped with a flywheel (4) at one end
) engages with the interlocking shafts (8) and (9) through a gear mechanism (6) and (7) consisting of a pair of bevel gears, and operates a mold head mechanism (D) to be described later in the middle of the driving shaft (5). A cam (10) is provided.

are provided, respectively, and the cutting blades (13) and (14) of the cutting mechanism (C) are connected via the reciprocating elements (11) and (12).

Each of these cutting blades (13) and (14) has a symmetrical structure, and the cutting blade (13) on the second side in Figure 1 is a block whose cross section is trapezoidal, as shown in Figures 2 to 6. As is clear from FIGS. 4 and 6, the cut portion (1
3a).

Although one cutting blade (14) is not shown, the second cutting blade (14)
It has a symmetrical structure with the cutting blades (13) shown in FIGS. ing.

Although the mounting structure of the cutting blades (13) (+4) is schematically shown in FIG. 1, it is actually as shown in FIG. 7.

That is, a sliding guide block (16) is attached to a knife stand (15) with a set bolt (not shown), and a knife box (16) is attached to this block (16) via an adjustment screw (17) and a guide piece (18). 19) is provided in a slidable manner, and the cutting blade (13) is removably fixed to the knife box (19) using a knife holding plate (20) and a fixing screw (21), Each of the above elements (+3) is driven by the dynamic element (II) (+2).
) (19) to (21) are configured to reciprocate along the sliding guide block (16).

By the way, a crank (22) is provided at the other end (lower end in FIG. 1) of the driving shaft (5), and this crank (22)
The other end of the crank rod (23) is connected to the arm (24) of the transfer mechanism (B).

This arm (24) is pivotably attached to the base (25) via a shaft (2B), and is provided with a one-way chuck (27) at the tip of the arm (24).

The chuck (27) has a pole-shaped wedge (28) inside.
The nail material (F) is held between the fixed element (2s) and the floating element (30), and the nail material (F) is moved by a predetermined dimension (of the arm (24)) by driving the crank rod (23). It is configured to transfer only the size corresponding to the amount of swing).

The type head mechanism (D) attaches its head (
:39) (see Figure 9), the mold head mechanism (D) consists of a pair of chucks (31) (32) and a hammer (33),
) are provided facing each other so as to sandwich the nail material (F), one movable side chuck (31) is attached to the cam (34) fitted to the interlocking shaft (8), and the other fixed side chuck 2 (32)
is in contact with the tip of a screw (35) that adjusts the clamping position.

On the other hand, the hammer (33) has a roller (37) pivotally supported by a pin (3 fl) at the other end, and a spring (3 days) is stretched so as to roll the roller (37) into contact with the cam (10). It is.

The illustrated embodiment is constructed as shown below, and its operation will be explained below.

When the two interlocking shafts (8) and (9) rotate together with the rotation of the driving shaft (5), first the crank (22) rotates, causing the crank rod (23) to move left and right.

For this purpose, the transfer mechanism (
The arm (24) of B) swings around the shaft (2B) as a fulcrum.
'1□1. □. ,. Yo4. Ka, □. .

At this time, the material is clamped by the one-way chuck (27) and transferred intermittently only in the right direction (see FIG. 1).

The movable chunk (31) is open.

Next, due to the rotation of the cam (34) of the interlocking shaft (8), the chuck (31) slides and pinches the nail material (F) between it and the stationary chuck (32). At the same time, the hammer (33
) is driven by the roller (
37) to strike the head (39) of the nail material (F) held between the chucks (31) and (32) as shown in FIG.

Next, the pair of chucks (31) and (32) are opened again, and the nail material (F) with the head already formed is transferred to the transfer mechanism (B).
After transferring the nail material (F) by a predetermined dimension according to the drawing, and again clamping the nail material (F) with the chucks (31) and (32), the cutting blade (F) connected to the reciprocating element (o) (t2) is
13) (14) slides oppositely as shown in Figure 8,
The nail material (F) is cut into a predetermined length using the inverted dog-shaped cutting portion (13a).

Therefore, a long nail material (F) as shown in FIG. 9 (E) is formed. That is, the head (38) is provided with a body (40) of a predetermined length, and the body (40) has an open leg portion (41) cut in the shape of an inverted character at the tip thereof.

Next, the bifurcated nail (E) in the middle of processing is cut into a groove along its longitudinal direction by a rotary blade or a scroll saw by a length of about % of the total length of the body (40) using a separate device (not shown).
42), it becomes a bifurcated nail (E) having two split legs (43) and (44) as shown in FIG. In this embodiment, a flat material was used as the nail material (F), but it goes without saying that in addition to the flat material, a round material and a square material may be used.

The bifurcated nail (E) thus formed is, for example, the 11th
As shown in the figure, a foamed concrete wall (pumice-like product called Iton (trademark) made by Nippon Cement etc.) (45
) when installing the electrical wiring storage pipe (4B),
A washer (47) is attached to the nail (E) under the condition shown in Fig. 1θ.
When the saddle (48) is inserted and this bifurcated nail (E) is driven from above the wood (49) as shown in Fig. 11, this bifurcated nail (E) will be attached to the foam concrete wall (45).
Two split legs (43) depending on the resistance when driven into the
(44) can be opened as shown in the figure, and the pipe (4B) can be fixed to the wall via the saddle (4B).

(1.) Effects of invention The unique effects of the present invention are as follows.

That is, in the above-mentioned nail making machine, a nail of a predetermined size (E') is made from a long nail material (F), that is, a head (39) is provided with a body (40) of a predetermined length, and the tip of the body (40) is Since it is possible to manufacture a product having an open leg part (41) cut in an inverted dogleg shape, the nail material (E') can be manufactured by simply cutting a groove in the next step using a separate device (j6). A bifurcated nail (E) as shown in FIG.

Therefore, compared to various conventional means, the bifurcated nail (E) can be manufactured in fewer steps, and the manufacturing cost of the turning lamp (E) can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a nail making machine according to the present invention;
Figure 2 is a plan view of the cutting blade, Figure 3 is a left side view of the cutting blade,
Figure 4 is a front view of the cutting blade, Figure 5 is a right side view of the cutting blade,
Fig. 6 is a perspective view of the main parts of the cutting blade, Fig. 7 is a front view showing the mounting structure of the cutting blade, Fig. 8 is a plan view to explain the operation of the nail making machine, and Fig. 9 is a partial view of the cutting blade during processing. Perspective view of a bifurcated needle, part io
The figure is a perspective view of the completed bifurcated needle, and FIG. 11 is a sectional view showing an example of how the bifurcated needle is used. (2) (3)... Straightening rolls (13) (14)... Cutting blade (13a)... Cutting part (39)... Head (A)... Straightening mechanism (B) )... Transfer mechanism (C)... Cutting mechanism (D)... Model head mechanism (E)... Forked nail (F)... Nailing applicant: Daido Seisakusho Co., Ltd. 1 N :)! -202- Lid

Claims (1)

[Claims] a straightening mechanism (A) consisting of a plurality of straightening rolls (2) and (3) for straightening the nail material (F); a transport mechanism (B) for transporting the nail material (F) by a predetermined dimension; Width cutting mechanism (C)
and a head-making mechanism (D) that makes the head (39) of the nail material (F).
In the nail making machine, the cutting mechanism (C) is provided with a pair of cutting blades (13) (+4) having a cutting portion (13a) in the shape of an inverted character with respect to the advancing direction of the nail material (F). A nail making machine characterized by being installed in a facing manner.