JPH0430181Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used to temporarily take out a workpiece in a direction perpendicular to the main transport direction when processing or assembling various articles. The present invention relates to an article transfer device.

(Prior art) In a line in which workpieces are conveyed in a fixed direction by a conveyor and sequentially processed or assembled at stations provided along the conveyor, the details of the processing or assembly and the used Depending on the device, it may be necessary to temporarily take out the workpiece to the side from the conveyor, and in that case, a device is required to carry the workpiece out of and into the conveyor in a direction orthogonal to the conveyor. Conventionally, this type of device has been a cylinder type or a lift and carrier type (for example,
83322), but the former requires a cylinder to push the workpiece sideways from the conveyor and a cylinder to return it onto the conveyor, and the latter requires a lift to lift the workpiece from the conveyor. and a carrier for transporting the workpiece, and both require a plurality of drive means. In addition, each method requires a means for locking the workpiece, a means for driving the workpiece, and the like, resulting in a disadvantage that the structure becomes extremely complicated.

(Purpose of the invention) The present invention is intended to deal with the above-mentioned situation in the processing or assembly line of various articles, and the workpieces on the conveyor are temporarily taken out to the side of the conveyor to perform the prescribed processing. Alternatively, as an article transfer device used when performing assembly, a device is realized in which a single drive means can carry out and carry in a work, and actuate a locking means for the work, thereby significantly improving this type of device. Aims to simplify.

(Structure of the invention) That is, the present invention relates to an article transfer device that carries out and carries in articles on a conveyor in a direction perpendicular to the conveyance direction, and is capable of moving backward and forward in a direction perpendicular to the conveyor. A transfer unit is provided that reciprocates between a forward end that intersects with the conveyor and a backward end that is separated from the conveyor, and that the transfer unit abuts a fixed member when reaching the forward end. a push rod that moves backward relative to the unit; a rotating body that rotates by a constant angle each time the transfer unit reaches the forward end in conjunction with the backward movement of the push rod; and a rotating body that rotates by a constant angle each time the transfer unit reaches the forward end. In conjunction with the rotation of
Each time the transfer unit reaches the forward end, the transfer unit alternately projects upward from below the transfer surface of the transfer conveyor and retracts from above the transfer surface downward, and when protruding upward, the transfer conveyor It is characterized by comprising a locking arm that is locked to the article above.

According to such a configuration, when the transfer unit reaches the forward end, the push rod comes into contact with the fixed member and retreats relative to the unit, causing the rotating body to rotate by a certain angle, and this rotation causes First, the locking arm protrudes upward from the conveyance surface of the conveyor and is locked to the article on the conveyor. In this state, the transfer unit is transferred to the rear end, so that the article is moved from the top of the conveyor to the side. It will be carried out to the other side. After predetermined processing, assembly, etc. have been performed on the article, the transfer unit is moved forward to carry the article onto the conveyor again, and at the forward end of the carry-in, the push rod comes into contact with the fixed member again and retreats relatively, causing the rotating body to further rotate by a certain angle, and this rotation causes the locking arm to retract downward from the state of protruding above the conveyance surface of the conveyor. Then, the lock on the article is released. After the moving unit retreats in this state, it moves forward again, and at its forward end, the locking arm protrudes again as described above and locks onto the next article on the conveyor.

In this way, each time the transfer unit reaches the forward end, the protruding and retracting operations of the locking arm are repeated alternately, and while avoiding interference between the locking arm and the articles on the conveyor, As the articles are sequentially transferred to and from the conveyor, the protruding and retracting operations of the locking arms as described above are performed in conjunction with the movement of the transfer unit, which causes the cylinders, etc. It is sufficient to provide one drive means for reciprocating the transfer unit. In addition, the above locking arm is
It is projected at the forward end of the transfer unit, and is held in the projected state until the unit moves backward and forward and reaches the next forward end. Even when the article is carried upward, it is held in a protruding state, so that the article can be carried in and out in a stable state.

(Effects of the invention) As described above, according to the invention, one article transfer device is used when a workpiece on a conveyor is temporarily taken out to the side of the conveyor for processing or assembly. The workpiece can be carried in and out by the driving means, and an apparatus with a significantly simple structure can therefore be realized. This reduces equipment costs and operating costs for lines equipped with this type of equipment.

(Example) Hereinafter, an example of the present invention shown in the drawings will be described.

As shown in Fig. 1, the conveyor 1 that conveys the work has a structure in which a large number of rollers 3...3 are rotatably supported between the left and right side frames 2, 2, and the work is transported vertically in the drawing. A drawing station A is provided at a predetermined position on the conveyor 1 to draw the work into a processing station (not shown) provided on the side. Here, in the station A, the conveyor 1 has an upstream section 1', an intermediate section 1" and a downstream section 1".

Claims (1)

[Scope of utility model registration request] An article transfer device that carries out and carries in articles on a conveyor in a direction perpendicular to the conveyance direction thereof,
A transfer unit that is capable of moving backward and forward in a direction perpendicular to the conveyor and reciprocates between a forward end intersecting the conveyor and a backward end separating from the conveyor is provided, and , a push rod that comes into contact with the fixed member and retreats relative to the unit when reaching the forward end, and a push rod that moves by a fixed angle each time the transfer unit reaches the forward end in conjunction with the backward movement of the push rod. The rotating body rotates, and in conjunction with the rotation of the rotating body by a constant angle, each time the transfer unit reaches the forward end, the conveyor moves the conveyor's conveyor surface from below to upwardly and upwardly. What is claimed is: 1. An article transfer device comprising: a locking arm that alternately performs downward retraction operations and locks an article on a conveyor when protruding upward.