JP3801772B2 - Electronic component tray separator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an apparatus for separating each tray in a stacked bundle one by one from its lowermost layer when a plurality of trays containing electronic components such as liquid crystal display elements are stacked in a multi-stage shape. Is.
[0002]
[Prior art]
In general, in order to accommodate the liquid crystal display element when it is transported, a tray formed of a synthetic resin sheet so as to have a flange around the synthetic resin sheet is used, and this tray has a plurality of stages. It is handled in the state of a bundle stacked in a shape.
Conventionally, when separating the trays one by one from the bundles stacked in this manner, the entire stacked bundles are placed on the upper surface of the elevation that is moved up one by one, and the trays of the stacked bundles The uppermost tray is lifted by vacuum suction by a collet and placed on the upper surface of the tray transfer means, while the elevation is moved up by one tray. .
[0003]
[Problems to be solved by the invention]
However, in this conventional apparatus, an operation of vacuuming and lifting the uppermost tray in the stack of trays with a collet, and an operation of moving the collet to the side of the stack are largely laterally moved. In addition, since the operation of raising the elevation by one stage of the tray is required, the time required for separating one tray becomes longer, the workability is low, and the structure and operation of the apparatus are complicated. In addition, a space for one tray is provided on the side of the elevation, and the separated tray must be placed on a conveyor or the like in this space. There was a problem of increasing the size considerably by the amount of space.
[0004]
It is a technical object of the present invention to provide a separation apparatus that solves these problems.
[0005]
[Means for Solving the Problems]
In order to achieve this technical problem, the present invention
“A tray receiving piece on which a stack of trays is placed at least on both the left and right sides above the starting end of the conveyor that transports the tray can be freely moved between the inwardly advanced position and the outwardly retracted position. Provided to reciprocate, each tray receiving piece is provided with a spring for urging the tray receiving piece to the inwardly advanced position, while being moved up and down by a lifting mechanism at the start end of the conveyor A tray lifting frame is provided, and a tray push-up piece configured to reciprocate between an inwardly advanced position and an outwardly retracted position by a reciprocating mechanism is provided on the tray lifting frame. The tray receiving pieces are provided at least on both the left and right sides so that the tray receiving pieces can be moved back and forth simultaneously by the back and forth movement of the tray push-up pieces, and a separation claw piece is provided on the upper surface of each tray push-up piece. Push up Between the upper surface of, provided at a gap of only a round flange fitting at the periphery of the tray, in the separation claw piece, air for blowing air between the tray of the lowermost tray and the next stage A jet hole will be provided . "
It was made the composition called.
[0006]
[Operation and effect of the invention]
In this configuration, the tray lifting / lowering frame body is brought into contact with the lower surface of the tray at the bottom of the stacked bundle on which the separation claw pieces provided on the tray lifting / lowering frame are placed on the upper surface of each tray receiving piece. Since the tray push-up pieces provided in the tray lifting frame body are moved backward by the reciprocating mechanism, the tray receiving pieces are also moved backward together therewith. The bundle is transferred from the upper surface of each tray receiving piece to be placed on the upper surface of each tray push-up piece.
[0007]
Therefore, the tray push-up pieces are moved forward by the reciprocating mechanism so that the separation claw pieces provided on the tray push-up pieces move forward, and the tray receiving pieces are also moved forward. And each tray receiving piece is inserted between the flange in the lowermost tray of the stack and the flange in the next tray.
[0008]
Therefore, by lowering the tray push-up piece and each separation claw piece by its raising and lowering mechanism, in the state where the stack other than the lowermost tray on the stack is placed on the upper surface of each tray receiving piece, Since only the lowermost tray in the stack is forcibly pulled down by the separation claw pieces engaged with the flange, the single tray is separated and placed on the conveyor. In the following, by repeating the above operation, each tray in the stack can be separated and placed on a conveyor.
[0009]
In other words, according to the present invention, the tray can be separated from the stack by moving the tray lifting frame, so that the time required to separate one tray is shortened and the work efficiency is greatly increased. Since the structure and operation of the apparatus are simple, the occurrence of a failure can be reliably reduced, and a space for placing one tray on the side of the stack is provided. Since it is not necessary, the apparatus can be remarkably reduced in size.
[0010]
In addition, the present invention separates only the lowermost tray by providing the separation claw piece with an air ejection hole for blowing air between the lowermost tray and the next tray. Since this can be performed at a higher speed without deforming the tray, the aforementioned work efficiency can be further improved.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
In this figure, reference numeral 1 denotes a belt-type conveyor in which electronic component trays A are sent out one by one. At the start end of the conveyor 1, a tray elevating frame 2 is attached to a lower machine base ( It is arranged so as to move up and down by a pair of left and right cylinders 3 erected from (not shown).
[0012]
Tray receiving pieces 4 formed in a blade shape are disposed at four corners above the tray lifting frame 2, and each tray receiving piece 4 is erected from a lower machine base (not shown). The tray receiving piece 4 is attached to a reciprocating member 7 supported so as to freely reciprocate in the horizontal direction with respect to the bracket member 5 through the two guide shafts 6. The tray receiving piece 4 is connected between the guide shafts 6 so as to reciprocate between an inwardly advanced position indicated by a solid line and an outwardly retracted position. The tension spring 9 mounted between the member 8 and the bracket member 5 is always urged so as to be located at the forwardly advanced position indicated by the solid line in FIGS. 2 and 4. On the upper surface of each tray receiving piece 4, a bundle of a plurality of trays A stacked is placed. There.
[0013]
On the other hand, on both left and right sides of the tray lifting / lowering frame body 2, a carriage 11 is provided that is guided by two guide shafts 10 so as to be able to reciprocate in the horizontal direction. The cylinder 12 provided on the body 2 is configured to reciprocate between an inwardly advanced position and an outwardly retracted position.
Then, at both ends of each carriage 11, when the tray lifting frame 2 is moved up, tray push-up pieces 13 that are in contact with the lower surface of the lower tray of the stacked stack of the trays are provided, By contacting each tray push-up piece 13 with the front and back of the reciprocating member 7 to which each tray receiving piece 4 is attached, the tray receiving piece 4 is moved back and forth by the forward and backward movement of each tray pushing piece 13. It is configured to move back and forth at the same time.
[0014]
Further, the flange around the tray A is fitted between the separation claw piece 14 having the air ejection holes 14 a on the upper surface of each tray push-up piece 13 and the upper surface of the tray push-up piece 13. A gap with a dimension H is appropriately provided.
In this configuration, the tray lifting / lowering frame body 2 is made of the stack 3 in which each separation claw piece 14 provided on the tray lifting / lowering frame body 2 is placed on the upper surface of each tray receiving piece 4 as shown in FIG. It moves upward until it touches the lower surface of the tray A at the lowest level.
[0015]
Next, each tray push-up piece 13 provided on the tray lifting / lowering frame 2 is moved backward by the cylinder 12, so that the tray receiving piece 4 is also moved back against the tension spring 9. Therefore, as shown in FIG. 6, the stacked bundle is transferred from the state of being placed on the upper surface of each tray receiving piece 4 to the state of being placed on the upper surface of each tray pushing piece 13.
[0016]
Next, each tray push-up piece 13 is moved forward by the cylinder 12 so that each separation claw piece 14 provided on the tray push-up piece 13 moves forward as shown in FIG. The tray receiving piece 4 is also moved forward by the force of the tension spring 9 at the same time as being inserted between the flange in the next tray and the flange in the next tray, and next to the flange in the lowermost tray of the stack. It is inserted between the flanges in the tray.
[0017]
Therefore, by lowering each tray push-up piece 13 and each separation claw piece 14 by its cylinder 3, as shown in FIG. Since only the lowermost tray A of the stack is forcibly pulled downward by the separation claw pieces 14 that engage with the flange while being placed on the upper surface of the tray receiving piece 4, A single tray A can be separated, and the separated tray A can be placed on the conveyor 1 by further downward movement.
[0018]
Further, when only the lowermost tray A of the stacked bundle is forcibly pulled downward by the separation claw pieces 14 that engage with the flange, the air ejection holes 14a provided in the separation claw pieces 14 are provided. Since the air can be blown between the lowermost tray A and the upper tray A in the stack, the separation can be performed at a high speed under the condition that the tray is not greatly deformed. is there.
[0019]
In addition, although the said embodiment showed the case where a large tray was handled by arrange | positioning the tray pushing piece 13 and the tray receiving piece 4 in four corners, this invention is not restricted to this, It is small. In the case of a tray, it goes without saying that the tray pushing piece 13 and the tray receiving piece 4 may be provided on at least the left and right sides.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of FIG.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a diagram illustrating a first operation state.
FIG. 6 is a diagram showing a second operation state.
FIG. 7 is a diagram showing a third action state.
FIG. 8 is a diagram showing a fourth action state.
[Explanation of symbols]
A tray 1 conveyor 2 tray lifting frame 3 cylinder 4 tray receiving piece 5 bracket member 7 reciprocating member 11 carriage 12 cylinder 13 tray pushing piece 14 separation claw piece 14a air ejection hole

Claims (1)

A tray receiving piece on which a stack of trays is placed at least on both the left and right sides above the starting end of the conveyor for transferring the tray freely reciprocates between an inwardly advanced position and an outwardly retracted position. Each of the tray receiving pieces is provided with a spring, and a spring for urging the tray receiving piece to an inwardly advanced position is provided on the tray receiving piece. An elevating frame is provided, and a tray push-up piece configured to reciprocate between an inwardly advanced position and an outwardly retracted position by a reciprocating mechanism is provided on the tray elevating frame. Provided at least on both the left and right sides, the tray receiving pieces are moved back and forth simultaneously by the back and forth movement of each tray push-up piece, and a separation claw piece is pushed up on the upper surface of each tray push-up piece. Fragment Between the upper surface, is provided at a gap of only a round flange fitting at the periphery of the tray, this separation claw piece, air ejection for blowing air between the tray of the lowermost tray and the next stage An electronic component tray separating apparatus comprising a hole .

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