JPH10310223A - Work feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work feeder capable of stabilizing the taking out of workpieces such as elastic rings, reducing running cost, enhancing the cycle of supplying the workpieces, and enhancing the efficiency of operating a production line by preventing the workpieces from clogging a passage. SOLUTION: In a work feeder 21 having a passage 22 through which a number of workpieces (w) arranged in a line are transferred in one direction by the pressure of air 15, an air inlet 29 through which air 32 is newly blown into the passage 22 to stabilize the feed of the workpieces (w) is provided in a longitudinal portion of the passage 22. Also, a recess reducing the friction resistance of the passage 22 to the workpieces (w) is provided in the inner surface of the passage 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work feeding device which, when combined with a container, constitutes an alignment device for automatically aligning works such as elastic rings in a line.

[0002]

2. Description of the Related Art In order to automatically align works w such as elastic rings in a line, conventionally, an aligning device 51 shown in FIG. 5 is used.
And a work feeder 53 having a passage 54 for taking out the work w from the container 52 in a state where the work w is arranged in a line.
, And the work w is rolled by the pressure or the force to feed the work w one by one into the passage 54 of the work feeding device 53.

However, this conventional technique has the following problems.

That is, in the aligning device 51 shown in FIG. 5, the works w are successively fed from the container 52 one by one into the passage 54 of the work feeding device 53, and the air 55 blown into the container 52 is passed through the passage 54. The work w moves continuously in the passage 54 by the pressure of the air 55 and reaches the outlet 56 at the tip of the passage 54. ing.

However, when the aligning device 51 is actually operated, it is found that the work w is stuck to the inner surface of the passage 54 due to static electricity or the frictional resistance between the passage 54 and the work w is large. As shown in FIG. 6, the work w may be clogged in the passage 54,
As a result, the production line to receive the supply of the work w may be stopped.

[0006]

SUMMARY OF THE INVENTION In view of the above, the present invention makes it difficult for a work such as an elastic ring to be clogged in a passage, thereby stabilizing work take-out and reducing running costs.
It is an object of the present invention to provide a work feeding device capable of improving a work supply cycle and improving a production line operation efficiency.

[0007]

According to a first aspect of the present invention, there is provided a workpiece feeder having a passage for transferring a plurality of workpieces in one direction in a single line by the pressure of air. A work feeding device, wherein an air blowing port for stabilizing the feeding of the work by newly blowing air into the passage is provided midway in the longitudinal direction of the passage.

According to a second aspect of the present invention, there is provided a work feeder provided with a passage for transferring a plurality of works in one line in one direction by air pressure in a state of being arranged in a line. A recess for reducing frictional resistance between the passage and the work.

In the work feeder according to the first aspect of the present invention having the above-described structure, an air inlet is provided in the middle of the passage in the longitudinal direction, and new air is introduced into the passage from the air inlet. Is blown, the newly blown air presses the work together with the air from the container side, so that the work continues to move.

In the work feeder according to the second aspect of the present invention having the above-described structure, a recess is provided in the inner surface of the passage, whereby the contact area between the passage and the work is reduced, and the frictional resistance is reduced. The work continues to move only by the pressure of the air from the container side.

Therefore, in any case, the work reaches the discharge port without being clogged in the passage.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a work feeding device 21 according to this embodiment is combined with a container (also referred to as a hopper) 11 to automatically align works w such as elastic rings in one line. It constitutes. That is, FIG. 1 is an explanatory view (vertical schematic cross-sectional view) of the aligning device 1 including the work feeding device 21 according to the embodiment, FIG. 2 is an enlarged cross-sectional view of the work feeding device 21, and FIG. FIG. 4 is an enlarged cross-sectional view taken along line A.

The container 11 has a cylindrical shape with its central axis oriented substantially horizontally, has a peripheral wall 12 and a pair of end walls (not shown), and has an intake port for a work w (not shown). , Are supported by supporting means (not shown). The arc-shaped surface 1 is formed on at least a part of the inner surface of the peripheral wall 12.
3 is provided in the tangential direction of the arc-shaped surface 13 and the work is fed to the upper part of the container 11 so that the work w rolls along the arc-shaped surface 13 and is taken into the work feeding device 21. The device 21 is connected substantially horizontally. In addition, a required number of air that blows air (also referred to as first air) 15 into part of the peripheral wall 12 of the container 11 and rolls the work w along the arcuate surface 13 by the pressure or force of the air 15 is blown into the container 11. An inlet (also referred to as a first air inlet) 14 is provided.

The work feeding device 21 has a passage 22 for taking out the works w from the container 11 in a state of being lined up.

The passage 22 is a straight hollow channel having a substantially rectangular cross section, and has a bottom wall 23, a top wall 24, and a pair of side walls 25, and a container side opening 26 is provided at one end thereof. At the other end (end), there are provided a stopper 27 for stopping the work w, and an outlet 28 for taking out the work w upward or to the side. The container-side opening 26 has a size that allows only one work w to pass through so that the work w does not enter the passage 22 in a state where two works are overlapped. It has a size that allows only one work w to pass in a line.

At substantially the center in the longitudinal direction of the passage 22, a passage 22 is provided.
An air inlet (also referred to as a second air inlet or an air inlet) 29 for newly blowing air (also referred to as second air) 32 to stabilize the feeding of the work w is provided.

The air inlet 29 is provided with a hole 24a in the top wall 24.
Is formed by erecting a substantially cylindrical pipe-shaped member 29a on the top wall 24 so as to communicate with the hole 24a, and is opened on the upper surface of the passage 22;
Further, a pipe-like member 29a is provided upright with respect to the passage 22 or the top wall 24 so that the air 32 blown into the passage 22 from the air inlet 29 flows toward the outlet 28. Also, the air inlet 29 is provided in the passage 2
2 is provided substantially at the center in the width direction.

Further, a recess 30 for reducing frictional resistance between the passage 22 and the work w is provided on the bottom surface 22a of the passage 22.

The recess 30 has a groove shape having a substantially triangular cross section, and is provided over substantially the entire length of the passage 22, and three recesses 30 are provided in parallel with each other. A bottom surface 22a is left in a strip shape with a part of a flat surface between the recesses 30, and the work w slides on this flat surface. However, as shown in FIG. A tip 31 is provided between the recesses 30 continuously, and the work w
You may make it slip.

The aligning device 1 having the above configuration operates as follows. In preparation for operation, each air inlet 1
An unillustrated air supply source (air ejection device) is connected to 4 and 29, and a required number of works w are put in the container 11.

When the air supply source is operated, first, when the air 15 is blown into the container 11 at a high pressure from the air blowing port 14 provided on the peripheral wall 12 of the container 11, the work w is pushed by the pressure or force and the work w is pressed. Rolling inside the container 11 and rotating counterclockwise in FIG. 1, rolling along the arcuate surface 13 and just
One work w having the same orientation as the container side opening 26 is taken into the passage 22 from the container side opening 26, and this is repeated, and the works w are successively added one by one to the container side opening 26.
From the passage 22. The works w arranged in a line in the passage 22 move forward in the passage 22 in a forward direction while the rearmost work w is continuously pressed by the pressure of the air 15, and
8 and are sequentially taken out one by one by means not shown.

The work feeder 2 having the above configuration
1, the passage 2 is provided substantially at the center of the passage 22 in the longitudinal direction.
2 is provided with an air blowing port 29 for blowing a new air 32 to stabilize the feeding of the work w. Air blown into the container 1
By pressing the work w together with the air 15 from the first side, the work w continues to move to the outlet 28 without being clogged in the passage 22. At the same time, the bottom surface 2 of the passage 22
2a is provided with a groove-shaped recess 30 for reducing the frictional resistance between the passage 22 and the work w.
The work w continues to move to the take-out port 28 without being clogged in the passage 22 because the contact area of the work w is reduced and the frictional resistance is reduced. Therefore, the following effects can be obtained.

Since the clogging of the work w in the passage 22 is eliminated, the removal of the work w can be stabilized. If the work w is clogged in the passage 22, the running cost such as supply of the air 15, 32 does not stop until the clog is cleared, but the running cost increases. The running cost can be reduced and stabilized. Since the removal of the work w is stabilized, the work supply cycle in the production line can be improved. Since the removal of the work w is stabilized, the operation efficiency of the production line can be improved.

The timing of blowing the air 15 blown into the container 11 from the air blow port 14 and the timing of blowing the air 32 blown into the passage 22 from the air blow port 29 may be intermittent.

The pressure of the air 15 blown into the container 11 from the air blow port 14 and the pressure of the air 32 blown into the passage 22 from the air blow port 29 may be changed independently or the same.

The air inlet 29 is connected to the passage 22.
May be provided at the lower part of the frame, or may be provided at both the upper and lower sides.

In the case where the length of the passage 22 is long, a plurality of air blowing ports 29 may be provided.

The recess 30 may be provided on the upper surface of the inner surface of the passage 22, or may be provided on both upper and lower surfaces.

[0030]

The present invention has the following effects.

That is, in the work feeder according to the first aspect of the present invention having the above-described structure, an air blowing port for stabilizing the work feed by newly blowing air into the passage in the longitudinal direction of the passage. In the work feeder according to the second aspect of the present invention having the above-described configuration, since the inner surface of the passage is provided with a recess for reducing frictional resistance between the passage and the work, Also in the case of (1), the work reliably reaches the discharge port without being clogged in the passage. Accordingly, it is possible to stabilize the work removal, reduce the running cost, improve the work supply cycle, and improve the operation efficiency of the production line.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an alignment device including a work feeding device according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the work feeding device.

FIG. 3 is an enlarged sectional view taken along line AA in FIG. 1;

FIG. 4 is a cross-sectional view showing another example of a dent.

FIG. 5 is an explanatory view of an alignment device provided with a work feeding device according to a conventional example.

FIG. 6 is a laterally enlarged cross-sectional view of the work feeding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Alignment apparatus 11 Container 12 Peripheral wall 13 Arc-shaped surface 14, 29 Air blowing port 15, 32 Air 21 Work feeder 22 Passage 22a Bottom surface 23 Bottom wall 24 Top wall 24a Hole 25 Side wall 26 Container side opening 27 Stopper 28 Extraction port 29a Pipe-shaped member 30 Depression 31 Pointed end w Work

Claims (2)

[Claims] A passage (2) for transferring a plurality of works (w) in one direction in a state of being arranged in a line by the pressure of air (15).
2) a work feeder (21) provided with the passage (2) in the longitudinal direction of the passage (22).
2) A work feeder, wherein an air blow-in port (29) for newly blowing air (32) to stabilize the feed of the work (w) is provided. 2. A passage (2) for transferring a plurality of works (w) in one direction in a state of being arranged in a line by the pressure of air (15).
2) A work feeder (21) provided with (2), wherein a recess (30) for reducing frictional resistance between the passage (22) and the work (w) is provided on an inner surface of the passage (22). A work feeder.