JPS6232196Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sheet member take-out device, and more specifically, to a cartoning machine that takes out and supplies cartons in a hopper one by one from the bottom of a hopper in a cartoning machine. The present invention relates to a sheet member take-out device suitable for use in a feeding device or the like.

In general, this type of carton supply device includes a carton hopper that collects and stores a large number of cartons that are still unfolded into a plate shape before being made into small boxes, and a take-out device that separates and takes out the cartons one by one from the carton hopper. ing.

By the way, since the carton itself has some rigidity, it is not necessarily easy to separate and take out the carton one by one from the bottom of the hopper.
In addition, the conventional take-out mechanism generally uses a suction cup to pick up cartons and then separates them from the bottom of the hopper and takes them out one by one. Due to these limitations, satisfactory performance could not be obtained.

The purpose of this invention is to be able to reliably take out sheet members such as cartons one by one from a hopper, and to feed the taken out sheet members almost inverted, thereby increasing the speed of feeding of the sheet members. be.

The present invention provides a sheet member retrieval device that stores sheet members in a hopper whose lower end is open and takes out the sheet members by suction from the lower end opening of the hopper using a suction device. A guide rail is provided on the side of the hopper and extends diagonally downward from the lower end of the hopper, and the slider is provided on the guide rail so as to be movable. , one end of a lever is rotatably attached to the slider, a support extending substantially parallel to the sheet member in the hopper is fixed to the lever, the suction device is attached to the support, and the suction device is attached near the lower end opening. At the position, an arm is rotatably attached via a support shaft extending substantially parallel to the support body, and the arm is pivotally connected to the other end of the lever, and the dimensions of the arm and lever and the suction device are determined. The suction device is oriented such that when the slider approaches the hopper, the suction device faces the hopper, and when the slider is farthest from the hopper, the suction device faces downward. In the above configuration, when the slider is brought close to the hopper, the suction device faces the hopper and suction-holds the sheet member from the lower end opening. Then, when the slider is released from the hopper, the sheet member is taken out from the hopper while being held by the suction device, and is placed on a conveyor or the like with its orientation almost reversed.

An embodiment of the present invention will be described below with reference to the drawings.

1 to 3, a sheet member take-out device 10 according to this embodiment is shown together with a hopper 1 adapted to store a large number of sheet members.

Each of the hoppers 1 is surrounded by a pair of side plates 2 and 3 and has an open bottom so that sheet members can be taken out one by one from the bottom opening. The center line O--O of this hopper is inclined at a predetermined angle θ with respect to the horizontal line, and a part of the weight of the sheet member is distributed to the side plate 2. A claw 4 is fixed to a part of the bottom of the hopper to prevent the sheet member from falling freely within the hopper.

The take-out device 10 includes a guide rail or guide rod 11 arranged on the side of the hopper 1 so as to be inclined at approximately the same angle as the inclination angle of the hopper, a slider 12 slidably supported by the guide rod 11, and one end of the guide rod 11. A lever 13 is pivotally connected to a slider 12.

A support 14 is attached to the lever 13 in a cantilevered manner. As shown in FIG. 3, this support or rod 14 is placed substantially parallel to one pair of side walls 2 of the hopper 1 and offset to one side (downward in this embodiment) from the center of the hopper. It stretches at the bottom.

A support shaft 15 extending substantially parallel to the support rod 14 is arranged and fixed at the bottom of the hopper 1 adjacent to the opening and offset from the center of the hopper to the side opposite to the support rod 14. An arm 1 is attached to the end of the support shaft 15.
One end of the arm 6 is rotatably attached, and the other end of the arm is pivotally connected to the other end of the lever 13. The support shaft 15 has a roller 1 that contacts the lower surface of the sheet member.
7 is rotatably attached.

A pair of suction devices 18 are attached to the support rod. This suction device 18 is composed of a main body 18a and a suction cup 18b attached to the main body.
The main body 18a is connected to a shutoff valve (not shown) via a through hole 18c formed in the main body 18a. This suction device is positioned such that when it is at the uppermost position (solid line position in FIG. 1), its axis 0'-0' (FIG. 3) is approximately perpendicular to the sheet member m in the hopper.

The slider 12 is connected via a link 21 to an arm 20 that is swingable about a fulcrum 19.
The arm 20 is connected at its center to an arm 23 fixed to a drive shaft 22 via a link 24, and by rotation of the drive shaft in the direction of arrow X, the arm 20 is reciprocated within a certain angle α. The slider 12 is moved back and forth between the position shown by the solid line and the position shown by the chain line.

In the take-out device 10 having the above configuration, the slider 12 moves in the direction of the arrow Y, as shown by the solid line (first
In the figure), the suction cup 18b of the suction device 18 comes into contact with the sheet member m when the suction cup 18b is 2 to 3 mm below the position (measured along the axis of the guide rod), and the suction cup 18b further rises to the position shown by the solid line.
The suction of the sheet member m by b is completed. At this time, the through holes 14a and 18c are closed by the shutoff valves.

Next, the arm 20 rotates clockwise around the fulcrum in the X direction and begins to move downward in the Z direction. At this time, the left end (left end in FIG. 3) of the sheet member m is in contact with the claw 4, but the slider 12
As it descends, it bends into an arched shape, and when it bends to a certain extent, it separates from the claw 4 and becomes in the state shown by A in Fig. 4.

Thereafter, as the slider descends, the sheet member m is also attracted to the suction cup 18b and pulled down to the fourth position.
After passing through the states shown in Figures B and C, when the slider 12 reaches the position shown by the chain line, it is in a substantially horizontal state as shown in D. When this state is reached, when the shutoff valve is opened to expose the through holes 14a and 18c to the atmosphere, the suction by the suction cup 18b is released and the sheet member m falls downward in a substantially horizontal state.

Therefore, if this position is located adjacent to the conveyor's feed belt, the sheet member taken out from the hopper 1 as described above can be fed onto the conveyor.

Thereafter, in the same manner, sheet members are taken out one by one from the bottom of the hopper by reciprocating the slider.

As is clear from the above description, although the take-out device according to the present invention has a relatively simple structure, it can reliably separate, take out, and supply sheet members one by one.

[Brief explanation of the drawing]

Fig. 1 is a side view of the sheet member take-out device according to the present invention, Fig. 2 is a view taken along the line - of Fig. 1, Fig. 3 is a sectional view taken along the line - of Fig. 2, and Fig. 3 is a sectional view taken along the line - of Fig. 2; FIG. 4 is an explanatory diagram of the operation of the take-out device. 1: hopper, 10: take-out device, 11: guide rail, 12: slider, 13: lever, 14:
Support body, 15: shaft, 16: arm, 18: adsorption device.

Claims (1)

[Claims for Utility Model Registration] 1. In a sheet member take-out device 10 that stores a sheet member m in a hopper 1 whose lower end is open, and takes out the sheet member by suction from the lower end opening of the hopper with a suction device 18. , the center line O-O of the hopper is inclined at a predetermined angle θ with respect to the horizontal plane, and on the side of the hopper 1 there is a groove that is substantially parallel to the center line of the hopper 1 and extends diagonally downward from the lower end. A guide rail 11 is provided, a slider 12 is movably provided on the guide rail 11, and one end 13a of a lever 13 is attached to the slider 12.
A support member 1 is rotatably attached to the lever 13 and extends substantially parallel to the sheet member in the hopper.
4, and attaching the adsorption device 18 to the support 14,
An arm 16 is rotatably attached to a position near the lower end opening via a support shaft 15 extending substantially parallel to the support, and the arm 16 is connected to the lever 13.
It is pivotally attached to the other end 13a, and the dimensions of the arm 16 and the lever 13 and the orientation of the suction device 18 are adjusted so that when the slider 12 approaches the hopper, the suction device 18 faces the hopper 1 and the slider 1. A sheet member take-out device characterized in that the suction device faces downward when the suction device 12 is furthest away from the hopper. 2. The sheet member take-out device according to claim 1, which is a registered utility model, wherein a roller 17 that contacts the lower surface of the sheet member is rotatably attached to the support shaft 15.