JPH10167203A - Structure of article holding part of boxing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a trouble by the interference with an internal surface of a box to be generated in opening/closing a gripper in a box body by setting the overall length of an upper holding member forming a holding part to be shorter than the overall length of a lower member to be held opposite thereto by a prescribed value. SOLUTION: An article holding part A is provided with an upper holding member 1 capable of being opened/closed to hold an article, and a member 2 to be held which is arranged on a lower side opposite thereto and performs no opening/closing action, and the overall length of the holding member 1 is formed to be shorter than the overall length of the member 2 to be held by 1/5 thereof. When the article holding part A in a condition where the article is pressed and held by the holding member 1 is inserted from an opening part of a box body which is stopped at the prescribed position in an inclined manner by the action of a robot, etc., the holding member 1 does not reach the box body even in a condition where a tip part of the member 2 to be held is inserted in the box body, and the smooth filling work can be done without bringing the holding part into contact with the internal surface of the box body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an article gripping portion of a packaging device for filling a plurality of articles in a housing.

[0002]

2. Description of the Related Art Conventionally, as a device for accommodating a large number of accumulated articles in a housing, a housing device described in Japanese Utility Model Publication No. 6-50322 is known.

[0003]

SUMMARY OF THE INVENTION The above-mentioned conventional packing apparatus uses a cylinder for pushing out an article disposed at a base end of an article gripping portion (gripper) when the article is released in the box during filling. This structure allows the article to be released by operating it without opening and closing the gripper. That is, although this packing device is an improvement that eliminates interference with the inner surface of the box when the gripper is opened and closed, it has a drawback that the structure of the article gripping portion is complicated and maintenance and maintenance of the device are troublesome.

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks, and has a simple structure in which a gripping portion is used to grip an article by a narrow pressure, and is free from troubles caused by interference with the inner surface of the housing when the gripper is opened and closed in the housing. It is an object of the present invention to provide a structure of an article holding portion of a lost packaging device.

[0005]

Means for Solving the Problems The structure of the article gripping portion of the packaging device according to the present invention (hereinafter simply referred to as the structure of the gripping portion).
In the structure of an article gripping portion of a packaging device for gripping and filling a plurality of articles into a container having an opening facing upward and inclinedly held, the overall length in the longitudinal direction of an upper narrow pressure member forming the gripping portion is defined as Is formed to be at least に or more shorter than the entire length of the lower narrow pressure receiving member facing the lower pressure receiving member.
Note that the entire length of the narrow pressure member is at least １ ／ of that of the narrow pressure receiving member.
The shorter length means that if it is slightly shorter, there will be no big difference in the opening width of the narrow pressure member when opening and closing compared to the same length. Because no difference was recognized, it was necessary to shorten the length by at least 1/5 or more.

Next, the operation of the present invention will be described. In the structure of the article gripping portion of the boxing device according to the present invention, the article gripped by the pressing force of the narrow pressure member and the narrow pressure receiving member arranged vertically is inserted into the inclined holding housing and pressed. Is released, the article is released from the gripping state by the pressing force of the narrow pressure member and the narrow pressure receiving member, and is naturally dropped into the box, so that the filling can be performed. At this time, the total length of the upper narrow pressure member is 1/5 of that of the lower narrow pressure receiving member.
Since it is formed to be shorter than the above, the interference with the housing due to the full opening of the narrow pressure member hardly occurs as compared with the one formed to have the same length.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a schematic side view showing an example of an arrangement of a main body and peripheral devices of a packaging device (robot) B relating to the structure of an article gripping portion of the packaging device of the present invention, and FIG. 2 is a perspective view of a component gripping portion. is there. FIG. 3 is a perspective plan view showing a state in which the article is gripped, and FIG. 4 is a perspective side view of the same.

In FIG. 1, a robot B is disposed upright on a base 10 and has a support 11 which can rotate around a vertical axis.
A first arm 12 instructed at the upper part of the support 11 and rotatable about a horizontal axis, a second arm 13 and a tip of the second arm 13 connected to a tip of the first arm 12 so as to be relatively rotatable. And an article gripping portion A attached to the device via a universal joint.

As shown in FIG. 2, the main part of the article gripping part A is disposed on the upper narrow pressure member 1 which can be opened and closed for gripping the article 4 and on the lower side relative thereto. And a narrow pressure receiving member 2 that does not perform opening and closing operations.

The base ends of the narrow pressure member 1 and the narrow pressure receiving member 2 are connected to a drive base 14 housing the drive means 6, and the narrow pressure member 1 can be opened and closed by a rack and pinion mechanism of the drive means 6. It has a well-known structure.

In the present invention, the length from the base end of the narrow pressure member 1 to the other end in contact with the article is referred to as its total length, and the total length of the narrow pressure member 1 is 1/5 of the total length of the narrow pressure receiving member 2. The length is reduced to 2/5 in this embodiment. In the illustrated embodiment, the article 4 is formed in a narrow bottle shape made of synthetic resin with a cap, so that the grip portion A
When the article 4 is gripped, a pin is provided upright on the surface of the narrow pressure receiving member 2 as a stopper 5 so that the narrow cap does not enter the gripping portion A too deeply so as not to hinder the filling operation.

When the articles 4 continuously conveyed by the article conveying conveyor 7 reach the operation area of the robot B , a certain amount of the articles 4 is accumulated at a predetermined position. These articles 4, 4, 4, ...
Is a robot B which is moved to a predetermined position on the side of the conveyor 7 by a pusher (not shown) disposed at a predetermined position adjacent to the conveyor 7 and is on standby.
Is pushed into the article gripping part A of the

The narrow pressure member 1 of the article gripping section A operates in the opening direction when the article A is received and when it is released.
Is operated in the closing direction (the direction in which the article 4 is pressed) when grasping.

On the other hand, the box 8 conveyed by the separately provided box conveyor (not shown) is stopped at a predetermined position on the box support base 9 with its opening inclined upward.

The article gripping section A in a state where the article 4 is pushed in and the article 4 is pressed and gripped by the narrow pressure member 1 then moves from the opening of the box 8 which has been tilted and stopped at a predetermined position by the operation of the robot B. It is inserted into the housing 8. that time,
The narrow pressure member 1 of the article gripping portion A is 2/5 of the narrow pressure receiving member 2.
Since it is formed so short, even if the tip of the narrow pressure receiving member 2 enters the housing 8, it does not reach the housing 8 and does not contact the housing 8.

Therefore, if the narrow pressure member 1 is operated in the opening direction in this state, the article A slides down along the upper surface of the narrow pressure receiving member 2 into the box 8 and is filled. In addition, even when the grip portion A must be inserted deeply into the housing 8 during filling (the narrow pressure receiving member 1 enters the housing 8), the entire length of the narrow pressure member 1 is reduced by the narrow pressure receiving member 2. Since it is formed at least 1/5 or more shorter, the opening width between the two members is reduced, and even if the gripping portion A enters and exits inside the box 8, the opening of the narrow pressure member 1 causes the opening to the inner wall of the box 8 to move. Contact interference can be reduced.

The structure of the article gripping portion of the packing device of the present invention is such that the entire length of the upper narrow pressure member 1 is at least １ ／ of the total length of the lower narrow pressure receiving member 2 opposed thereto.
Since it is formed shorter than the above, when gripping the article 4,
Most of the weight of the article 4 is received by the lower narrow pressure receiving member 2, and the upper narrow pressure member 1 merely performs the auxiliary function of pressing and supporting the tip of the article 4. Therefore, in the illustrated embodiment, the elastic member 3 is fitted and arranged on the contact surface side of the narrow pressure member 1 and the narrow pressure receiving member 2 with the article 4 as a non-slip in order to surely press and hold. .

[0018]

As described above, according to the present invention, even when a large number of articles are stacked and packed, a smooth filling operation can be performed without bringing the gripping portion into contact with the inner surface of the box. Less trouble. In addition, the structure is simplified, and maintenance and maintenance of the device are facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an arrangement of a main body and peripheral devices of a packaging device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of a structure of an article gripping part of the packaging device according to the embodiment of the present invention.

FIG. 3 is a perspective plan view of the article gripping part.

FIG. 4 is a perspective side view of the article gripping portion.

[Explanation of symbols]

1 ... Narrow pressure member 2 ... Narrow pressure receiving member 3 ... Elastic member 4 ... Article 5 ... Article stopper 6 ... Driving means 7 ···· Article transport conveyor 8 ···· Box 9 ···· Box support 10 ···· Base 11 ···· Pole 12 ····· First arm 13 ····· Second arm 14 ···· Drive base 15 ··· Holding punch A ···· Article gripping part B ······ Container (robot)

Claims (1)

[Claims] In a structure of an article gripping portion of a packaging device for gripping and filling a plurality of articles into a container having an opening facing upward and inclinedly held, a longitudinal direction of an upper pressing member forming the gripping portion is provided. The structure of the article gripping portion of the packaging device, wherein the entire length is formed at least 1/5 or less than the entire length of the lower narrow pressure receiving member opposed thereto.