JPH0745447Y2 - Conveying device for screw materials - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device for continuously conveying an elongated work such as a screw material from the lower side to the upper side.

[0002]

2. Description of the Related Art When a thread is rolled on a thread material A before thread rolling as shown in FIG. 4, conventionally, the thread material A is fed out one by one from a component feeder and aligned. A
Is conveyed from the lower side to the upper side by a conveying device as shown in FIG. 5, and the screw material A is slid along the guide rail C at the upper end folded portion B of the conveying device to a thread rolling machine (not shown). The screw thread was supplied and the thread was rolled on each screw material A by the same thread rolling machine.

The transport device shown in FIG. 5 has a sprocket gear D.
A chain (running body) E that hangs around ₁ , D ₂ , D ₃ , and D ₄ in a substantially L-shape and circulates in the direction of arrow a in FIG. 5, and is attached to the side surface of the running body E at regular intervals. A support tool F capable of supporting the screw material A fed to the side surface of the traveling body E, and a passage G through which the screw material A, which is arranged on the outer periphery of the traveling body E and is conveyed by being supported by the support tool F, passes. And has a front slanting part that guides the flange H of the screw material A and slides the screw material A toward the forward side in the conveying direction at the upper end folded portion B (sprocket gear D ₃ side) of the traveling body E. And a guide rail C provided with I.

In this conveying device, when the screw materials A aligned in a line by the component feeder are fed to the end of the guide rail C on the front side in the conveying direction, the rod-shaped portion K of the screw material A is moved by the supporting tool F. The screw material A is supported and conveyed in the direction of the arrow a (horizontal direction) in FIG. 4, and is turned upward at the succeeding sprocket gear A ₂ to be conveyed upward. When the screw material A passes through the upper end folded portion B of the traveling body E, the screw material A is separated from the support tool F of the traveling body E, and the flange H of the screw material A is guided by the guide rail C.
The sliding portion I slides down in the direction of the arrow b in FIG. 5 and is fed to a rolling device (not shown).

[0005]

In the carrying device of FIG. 5, when the number of supporting tools F to be mounted on the traveling body E is small and the mounting intervals are wide, screws supported and carried by the supporting tools F are used. When the material A slides down the sliding portion I of the guide rail C, it does not collide with the support tool F on the front side of the traveling body E, but as shown in FIG. When a large number of screw materials A are to be conveyed by attaching the screw materials at a narrow interval, the screw material A that is conveyed while being locked by the support tool F is conveyed over the upper end folded portion B of the traveling body E. When sliding down onto the guide rail C on the front side in the direction, the sliding speed of the screw material A becomes faster than the conveying speed up to that time.
May collide with the support tool F on the front side of the traveling body E. In this case, the screw material A stops there until the supporting tool F further advances and moves downward, so that the sliding portion I of the guide rail C cannot be slid down smoothly.

Further, as described above, once the screw material A is stopped in the guide rail C, the screw material A that is subsequently conveyed is also stopped by the screw material A and the guide rail C is stopped. C may be clogged with many screw materials A. In addition, in this case, the jammed screw material A may be pushed out of the guide rail C and fall, or the screw materials A may hit each other and the screw material A may be damaged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a conveying device for a screw material or the like that can smoothly convey a conveyed work without fluctuation or clogging even if the conveyed amount of the work is increased.

[0008]

As shown in FIG. 1, a conveying device for a screw material or the like according to the present invention includes an endless traveling body 1 and an optional supporting member 3 for supporting an elongated work 2 such as a screw material one by one. Has a passage 4 through which a workpiece 2 supported and supported by a supporting member 3 of the conveyor 4 passes, and conveys the workpiece 2 to a desired position 6 of the conveyor 4. In a transporting device for a screw material or the like having a guide rail 8 having a slide-down portion 7 with a forward-downward inclination to slide forward in a direction, in a passage 5 of the slide-down portion 7 of the guide rail 8 from the traveling direction of the endless traveling body 1. It is characterized by bending so as to lie sideways.

[0009]

In the conveying device for screw material or the like according to the present invention, since the passage 5 of the slide-down portion 7 of the guide rail 8 is bent so as to be laterally deviated from the traveling direction of the endless traveling body 1, the conveying body 4 is supported. When the work 2 supported and carried by the tool 3 crosses the folded-back part 6 and rapidly slides down the sliding part 7, the work 2 slides down while being displaced in the lateral direction of the support 3 of the carrier 4. , The slide part 7 without hitting the support 3
Can be smoothly slid down, and the work 2 can be transported smoothly.

[0010]

[Embodiment 1] FIG. 1 shows an embodiment of a conveying device for a screw material or the like according to the present invention, which is a work 2 to be conveyed.
Is the case of the screw material shown in FIG. This screw material 2
Has a flange-shaped nut portion 10 at the upper portion and a screw rolling portion 11 at which the lower portion is rolled later. This transporting device transports the screw materials 2 aligned and fed by changing the transporting direction from a horizontal direction (horizontal direction) to an upward direction (longitudinal direction), and is transported by the same carrier body 4. A guide rail 8 having a passage 5 for sliding while guiding the screw material 1 is provided.

As shown in FIGS. 2 (a) and 2 (b), the carrier 4 is made of metal so that the screw material 2 is supported on the side surface of a metal chain (endless traveling body) 15 and can be carried. A large number of tools 3 are attached along the longitudinal direction of the metal chain 15 at regular intervals, and the metal chain 15 has four large and small sprocket gears 20, 21, 2
It is adapted to be laid in a substantially L shape on the Nos. 2 and 23 so as to be able to orbit in the direction of the arrow a in the figure.

The guide rail 8 is composed of two strip-shaped plate members 2
5 are separated from each other by a desired distance and are arranged to face each other, and both plate members 2
A slit-shaped passage 5 is formed between the passages 5, and the screw material 2 can slide with the thread rolling portion 11 of the screw material 2 inserted in the passage 5. In this case, the head portion 2a of the screw material 2 is supported by both plate members 25.

As shown in FIG. 1 (a), the passage 5 formed in the guide rail 8 extends straight along the carrier 4 from the front side in the carrying direction of the carrier 4 to the position of the folded portion 6. 1A, from the folded-back portion 6 to the slide-down portion 7 that is inclined forward and downward.
As shown in (c), the passage 5 is bent so as to laterally deviate from the carrier 4.

The way of bending the passage 5 (condition of curve) is as follows.
When the screw material 2 passes over the folded-back portion 6 and slides down the sliding portion 7, it is determined so as not to collide with the supporting member 3 protruding to the side of the carrier 4 and to allow the sliding portion 7 to slide down as smoothly as possible. good.

Although the conveying device shown in FIG. 1 changes the conveying direction from the horizontal direction to the vertical direction, the conveying device of the present invention, as shown in FIG.
The work 2 conveyed to the above may be slid downward at the folding portion 6.

[0016]

EFFECTS OF THE INVENTION In the screw material transfer device of the present invention, even if the transfer speed and transfer amount are increased, the work 2 to be transferred may be clogged at the sliding part 7 that slides down rapidly or may be damaged by hitting. In this way, many works 2 can be continuously and smoothly conveyed, and the conveying efficiency is improved.

[Brief description of drawings]

FIG. 1A is a plan view showing an embodiment of a conveying device for a screw material or the like of the present invention, FIG. 1B is a side view thereof, and FIG. 1C is a rear view of an upper end portion thereof.

2A is a side view showing an embodiment of a transport chain in the transport device for the screw material or the like in FIG. 1, and FIG. 2B is a rear view thereof.

FIG. 3 is a perspective view showing an example of a screw material.

FIG. 4 is a side view showing another embodiment of the screw material conveying device according to the present invention.

5A is a plan view showing an example of a conventional conveying device for a screw material or the like, FIG. 5B is a side view thereof, and FIG. 5C is a rear view of an upper end portion thereof.

6 is an explanatory view showing a problem in the screw material conveying device of FIG. 4;

[Explanation of symbols]

 1 Endless traveling body 2 Work piece 3 Supporting tool 4 Conveying body 5 Passage 6 Folding part 7 Sliding part 8 Guide rail

Claims (1)

[Scope of utility model registration request] 1. A carrier 4 having support members 3 for supporting elongated works 2 such as screw materials one by one mounted on an endless traveling body 1 at arbitrary intervals, and supported by a support member 3 of the carrier 4. A guide rail 8 having a passage 5 through which the workpiece 2 to be conveyed and conveyed is provided, and a slide portion 7 having a front downward slope for sliding the workpiece 2 forward in the conveying direction is provided at a desired position 6 of the conveyor 4. A conveying device for a screw material or the like, characterized in that the passage 5 of the sliding portion 7 of the guide rail 8 is bent so as to be laterally displaced from the traveling direction of the endless traveling body 1.