JPH0311978B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lid hanging device for placing a lid on a storage box storing small parts such as spring washers.

[Conventional technology and its problems]

Storage boxes for storing small parts such as springs and washers are usually made of cardboard, etc., and are not very strong structurally, so if you fill them with small parts, it will be difficult to store them due to the weight of the parts. The side walls of the box bend and are pushed outward. These expanded side walls are a major obstacle when automatically fitting the lid onto the storage box, and the work of putting the lid on the storage box is difficult.
This has traditionally been done manually. For this reason, it took time and effort to fit the lid on, resulting in poor work efficiency.

[Purpose of the invention]

This invention was made in view of the above points, and provides a lid hanging device that can automatically and reliably fit a lid into a storage box filled with small parts and whose side walls expand outward. is intended to provide.

[Means for solving problems]

In order to solve the above problems, according to the present invention, a guide in which a plurality of vertical elastic plates are arranged in an annular manner is provided on the storage box mounting table, and the storage box passing path inside the guide is directed upward. the upper opening of the passage is smaller than the outer periphery of the storage box; a lid feeding mechanism for covering the upper opening of the guide with a lid; and a lid feeding mechanism for raising the mounting table to a position above the guide. A lifting mechanism was installed to allow the robot to move up and down.

[Effect]

In the lid hanging device configured as described above, when the storage box is raised by pushing up the mounting table using the lifting mechanism, a guide whose upper opening becomes smaller than the outer periphery of the storage box gradually becomes narrower is created above, which serves as a path for the storage box to pass through. Because of the arrangement, the storage box elastically pushes the guide apart and rises, and conversely, the elastic force of the guide pushes the side wall inward and deforms so that the outer circumference becomes smaller. At this time, the top opening of the guide is covered with a lid by the lid supply mechanism, and when the shrinkable box whose outer periphery has been deformed to a small size rises and passes through the top opening, it enters the inside of the lid and closes the lid. The lid is then fitted with the lid.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, an upper table 1 and a lower table 2 are mounted in parallel, and openings 1a and 2a are formed in the center of each.

Among these, the opening 1a of the upper table 1 is connected to the lid B.
The opening 2a of the lower table 2 is formed to be slightly larger than the outer circumference of the storage box A.

On the other hand, a conveyor 5 for transporting storage boxes is attached to one side of the lower table 2, and as shown in FIG. 3, storage boxes filled with small parts are transported and hit the stop plate 5a. When it stands up and stops,
It is pushed out to the lower table 2 by the storage box pusher 6. In this case, a guide plate 9 is attached to the loading side of the lower table 2, so that the storage box A
is guided to the opening 2a.

A mounting table 3 is located inside this opening 2a, and is designed to support the storage box A. This mounting table 3 is connected to the lifting mechanism described above to move up and down, and when raised, pushes up the storage box A through the opening 1a of the upper table 1.

On the other hand, a shutter opening/closing mechanism 11 is provided on one side of the upper table 1, and the opening 1a is
It is designed to be opened and closed by two shutter plates 12, 12.

As shown in FIG. 5, the shutter plates 12, 12 are slidably attached along both walls of the opening 1a, and have a pair of links 17, 17 attached to a reciprocating plate 16 connected to an operating cylinder 15. are connected via.

When this reciprocating plate 16 is pushed out by the operating cylinder 15 and moves forward toward the upper table 1, the tips of both links 17, 17 move away from each other, and both shutter plates 12, 12 move left and right. It will be opened in Conversely, when the reciprocating plate 16 retreats, the shutter plates 12, 12 are closed.

As shown in FIG. 4, a conveyor 7 for conveying the lid B is provided on the side of the upper table 1 opposite to the shutter opening/closing mechanism 11, and the lid B is conveyed and hits the stop plate 7a. When it stops, it is pushed out to the upper table 1 by the lid pusher 8, guided to the opening 1a by the guide plates 10a and 10b installed on the loading side, and the shutter plate 1 is closed.
2 and 12.

Further, between the lower table 2 and the upper table 1, as shown in FIG. It is installed surrounding.

Furthermore, on the receiving plate 6a of the storage box pusher 6,
The guide plate 14 is attached with its upper end inclined in the direction of pushing out the storage box A. When the pusher 6 pushes out the storage box A and pushes out the receiving plate 6b to the opening 2a, the guide plates 13 and 14 close the opening. 2a
It comes to surround from four directions. This receiving plate 6a
The opening 2a remains open even after the storage box A is pushed out to the opening 2a.
The above state is maintained until the mounting table 3 rises and reaches the upper limit of the upward stroke.

An upper opening 18 formed at the upper ends of the guide plates 13 and 14 surrounding the opening 2a in this manner.
is set narrower than the outer periphery of the storage box A, and larger than the outer periphery of the mounting table 3 so that the raising and lowering of the mounting table 3 is not hindered. Therefore, when the storage box A is pushed up, the side walls of the storage box A interfere with the inner surfaces of the guide plates 13 and 14, and the storage box A rises to spread out the guide plates 13 and 14. Conversely, the side walls are pressed inward by the repulsive forces of the guide plates 13 and 14, deforming the entire structure to become smaller.

In order to obtain the above-mentioned effect, the guide plate 13,
14 is made of a material with appropriate elasticity, such as a plate made of metal or flexible synthetic resin.

Further, a protrusion 13a is provided on the outside of the upper end of each of the 13 guide plates, and when the shutter plates 12, 12 are opened, the lid B falls and is supported on the protrusion 13a. .

On the other hand, a lid pressing mechanism 19 is attached above the upper table 1. This pressing mechanism 19 is
The lifting mechanism 4 pushes up the mounting table 3 and the storage box A, and when the storage box A passes through the opening 1a with the lid B on top and rises, the lid B is pressed from above to securely lift the storage box A. and lid B are fitted together. Also, between the upper table 1 and the lid pressing mechanism 19, when the mounting table 3 reaches the upper limit of the upward stroke and stops, a storage box A fitted with the lid B is placed.
A conveyor 20 for carrying out the storage boxes is provided, and a push-out mechanism 21 for pushing out the storage boxes onto the conveyor 20 is installed opposite to the conveyor 20.

Next, the effects will be explained in order.

First, the lid B is carried in by the conveyor 7, pushed out to the opening 1a of the upper table 1 by the lid pusher 8, and supplied to the upper surfaces of both shutter plates 12,12. On the other hand, after the storage box A is filled with small parts, it is carried in by the conveyor 5, and is moved to the opening 2 of the lower table 2 by the storage box pusher 6.
a and is supported by the upper part of the mounting table 3.
(See Figure 6) Next, the shutter plates 12, 12 of the opening 1a are opened, the lid B falls through the gap, and the guide plate 1
3. However, in this case, the shutter plates 12, 12 open in both directions, so the ground surface of the lid B is not dragged to one side, and the lid B is held almost straight without tilting. Then it falls onto the protrusion 13a.

Thereafter, the mounting table 3 is pushed up by the elevator 4, and the storage box A is raised. At this time, since the upper passage of the storage box A is narrowed by the guide plates 13 and 14, the storage box A pushes the guide plates 13 and 14 apart and rises. The repulsive elastic force presses the peripheral wall from four directions and deforms the outer peripheral shape to become smaller. The upper opening 1 is formed at the upper end of the guide plates 13 and 14.
8, as shown in FIG. 7, since the outside of the upper opening 18 is covered with the lid B in advance,
The storage box A enters the inside of the lid B through the upper opening 18. At this time, the outside of the upper opening 18 is expanded outward by the storage box A and acts to push and expand the inner periphery of the lid B from the inside, making it easier for the storage box A to enter the inside of the lid B. Therefore, the storage box A and the lid B are securely fitted together.

In this case, the elastic force of the guide plates 13 and 14 acts on the side walls obliquely from above, so the storage box is deformed so that the upper entrance becomes narrower, and the small parts packed inside are This effectively prevents protrusion.

On the other hand, the lifting mechanism 4 continues to operate and pushes the storage box A fitted with the lid B upward through the guide plates 13, 14 and the opening 1a of the upper table 1. At this time, as shown in FIG. 8, the lid pressing mechanism 19 acts from above and presses the lid B with the elastic force of the spring that becomes stronger as the storage box A rises, thereby preventing the fitting between the lid B and the storage box A. Make it even more reliable.

When the lifting mechanism 4 reaches the upper limit of its operating stroke and stops pushing up, the pushing tool of the pushing mechanism 21 moves from the side to push the covered storage box onto the conveyor 20. This conveyor 2
0 carries out the storage box to the outside.

Thereafter, when the mounting table 3 is lowered and returned to the rear end position, the shutter plates 12, 12 are closed, the storage box pusher 6 is retreated and returned to the initial state, and the above-mentioned operation is repeated.

〔effect〕

As described above, the present invention pushes a storage box whose inside is filled with small parts and whose side walls are expanded upward by a lifting mechanism, and provides a guide with an upper opening smaller than the outer periphery of the storage box on its passage path. hand,
The peripheral wall is elastically pressed and moved inward, and the upper opening of the guide is fitted with the lid supplied from the lid supply mechanism, making it possible to automate the lid loading of the storage box and achieve highly efficient work. Realize.

In addition, the guides are arranged so that the passage of the storage box gradually narrows, and the pressure from the guide acts on the side walls diagonally from above as the storage box rises, so the storage box becomes smaller from the entrance side. As a result, the small parts filled inside are prevented from flying out, and the lid can be securely attached.

[Brief explanation of drawings]

1 and 2 are explanatory diagrams showing the structure of a lid hanging device in an embodiment of the present invention, FIG. 3 is a diagram showing a lower table and a means for transporting a storage box, and FIG. 4 is an illustration showing an upper table and a means for transporting a storage box. Figure 5 is an explanatory diagram showing the installation part of the shutter plate and the shutter opening/closing mechanism. Figure 6 is a diagram showing the means for carrying in the lid and taking out the storage box after the lid is hung. Figure 6 is an explanatory diagram showing the installation part of the shutter plate and the shutter opening/closing mechanism. Fig. 7 is a state diagram showing a state in which the storage box has been pushed up and has reached the upper opening of the guide, and Fig. 8 is a state diagram showing a state in which the lifting mechanism has reached the upper limit of its upward stroke. FIG. 1... Upper table, 2... Lower table, 3
...Placement table, 4... Lifting mechanism, 7... Lid transport conveyor, 8... Lid pusher, 11... Shutter opening/closing mechanism, 12... Shutter plate, 13... Guide plate, 14... Guide plate, A...storage box, B...
…lid.

Claims (1)

[Claims] 1 A mounting table for the storage box and a plurality of vertical elastic plates provided on the mounting table are arranged in a rectangular tube shape to form a passageway for the storage box that gradually narrows upward. A lid hanging device comprising: a guide whose upper opening is smaller than the outer periphery of a storage box; a lid supply mechanism for covering the upper opening of the guide with a lid; and a lifting mechanism for raising the mounting base to a position above the guide.