JPH0688580B2 - Stacking tray separator - Google Patents

Description

Description: “Industrial field of use” The present invention relates to a separating device for a stacking tray used for packaging goods in an automatic packaging machine.

"Prior Art" The edge portion 12 of the lowermost tray 11 of the conventional stacking tray 1 shown in FIGS. 6 to 10 is held by the claw members 2, 2 ... And is sequentially separated from the claw members 2, 2. As shown in FIG. 8, a suction cup 3 such as rubber that can be raised and lowered is attached to the bottom of the tray 1 to take it out.
Is lifted up by suction as indicated by the arrow, or the tray 11 is moved downward by rotating the side surface of the tray 11 as shown in FIG. 9 by several needles 4 or the rubber 5 as shown in FIG.
In addition to the method of scraping off the scraps, many methods such as JP-A-51-19693, JP-A-61-164922 and JP-A-62-126037 are used.

"Means to be solved by the invention" However, for some reason, the stacked tray 1 is separated from the two or three trays 11 and 11 in a stacked state, the articles are loaded in this state, and then the packaging machine is automatically loaded. If it is sent, the trouble occurs in the packaging work, and the operation of the machine is stopped each time, leading to a decrease in work efficiency, which is a problem.

Further, the conventional structure has a complicated structure, resulting in a high cost and a disadvantage inevitably caused by a timing shift because the upper and lower elements are constituted by a mechanism for moving forward or backward.

In order to solve these problems, an upper element such as a claw directly supports one edge, that is, the edge of the lowermost tray, and a lower element is provided at a required vertical interval with respect to the upper element, and The pressurized fluid is sprayed from a nozzle having a vertically elongated opening that is deformed into a flat shape on the edge of the tray.

Thus, it is a technical object of the present invention to separate a plurality of trays that have been separated and dropped into a single tray.

"Means for Solving the Problems" The device of the present invention for solving the above technical problems is as follows.

That is, in a stacking tray separating apparatus in which a stacking tray held by a frame or the like sequentially sucks and separates trays through an actuator having an air ejection port, a suction member, and a supporting member that is locked to a flange portion of the tray, Upper and lower elements for holding the trays that are sucked and separated by the suction member are provided at a required interval with respect to the stacking tray, and are located inside or outside the upper and lower elements,
Further, a nozzle having a vertically elongated deformed opening for ejecting a pressurized fluid to the edge of the stacking tray is provided, and the edge of one tray is directly supported by a lower element such as a claw. It is an object of the present invention to provide a stacking tray separating apparatus which is characterized in that the edge of the other tray bears directly on the lower side of the upper element such as a claw in the vertical direction at a required distance.

[Working] Pressurized fluid that is constantly ejected from the nozzles that are located between the stacking trays and between the upper and lower elements or beyond the upper and lower elements is one, that is, the lowermost tray and the second to third from the lower side. That is, it is blown between the other trays, a slight gap is formed between the two trays, and only the lowermost tray is separated from the elements such as the claws provided on the upper and lower sides together with the suction member by the suction action, and is separated and lowered. Alternatively, it is automatically transferred and supplied to a belt conveyor, a chain conveyor or the like in a desired direction.

However, when the lowermost tray and the second or third tray are stacked and dropped from the upper element together with the suction member, the lowermost tray is held by the lower element by the pressurized fluid ejected from the nozzle. At the same time, a gap is formed between the second tray and the second tray, and at the same time, the tray is separated from the other tray, only the lowermost tray is detached from the lower element, and then the other tray, that is, the second tray is held by the lower element. To be done.

[Example] A preferred example of the present invention will be described with reference to the drawings.

Reference numeral 100 is a laminated tray in which a large number of trays 101 as shown in FIG. 1 are stacked, and the laminated tray 100 is formed with a trace stocker 103 so that the trays 101 can be held and held by the frames 102, 102.

Upper elements 104, 104 in which front and rear sides, left and right sides, or both sides of the stocker 103 are formed with substantially triangular claws
... are provided on one side, ie on the top to hold the edge 1071 of the bottom tray 101, and said top elements 104, 10
Lower element 105, 105 with a required distance l for 4 ...
The base end of ... is provided in the example of the packaging machine body (not shown).

The upper and lower elements 104, 105 have a substantially triangular tip portion 106.
And is thereby held via the edge 1071 of the tray 101 on the one hand.

Reference numeral 108 denotes a nozzle provided inside or outside the upper element 104 and the lower element 105 for applying a pressurized fluid, and the nozzle 108 has a substantially vertically elongated opening 1081 formed by deforming a pipe into a flat shape, and one end of the nozzle 108 is provided. The other end of the pipe connected to is connected to the compressor (not shown) side.

109 is a suction member, and the other end of the pipe whose one end is connected to the suction member 109 is connected to a vacuum pump or a turbo blower. When the shape of the bottom surface of the tray 101 is smooth as shown in FIG. Although 1091 has a sufficient suction capacity, if the bottom surface of the tray 101 has a large number of irregularities as shown in FIG. 5, a rectangular suction box 1092 suitable for receiving the bottom surface of the tray 101 is used. Preference is given to using.

Next, the process of separating and lowering the tray 101 with respect to the stacking tray 100 with the suction cup 1091 will be described with reference to FIG.

First, the left and right edges 1071 of the bottom tray 101 of the stacking tray 100 are supported by the upper elements 104, 104 ... And the bottom tray 101 and the second to third trays 1 from the bottom.
Pressurized fluid is ejected from the nozzle 108 between 01, so that a slight gap δ is formed between the upper and lower trays 101, 101. (See FIG. 4 (a)) Next, when the lowest tray 101 is sucked down in the direction of the arrow through the suction cups 1091 and 1091, the second tray 101 is also piled up in the upper state for some reason. The lowermost tray 101 and the second tray 101 are detached from the element 104 at the same time.
The bottom tray is completely separated by
101 is held by the lower element 105 and the second tray 101 is located under the upper element 104. (See FIG. 4B) Next, the lowermost tray 101 is separated from the lower element 105 and descends together with the suction cup 1091. (Refer to FIG. 4C) Finally, when the suction cup 1091 is separated from the lowest tray 101 by releasing the suction action and is transferred to a separate conveyor,
The tray 101 is sent to a predetermined location.

At that time, the second tray 101 is supported by the lower element 105, and the third tray 101 is supported by the upper element 104. (See FIG. 4 (d)) FIG. 5 is a schematic explanatory view showing a process of separating and lowering the stacking tray 100 when the suction box 1092 is used for the suction member 109. The suction cup 1091 is a suction member. The operation and effect are the same as those of the suction cup 1091 except for the shape, and the description thereof will be omitted.

Reference numerals 1072, 1073, 1074, ... 107n are edges of each tray 101 in the stacking tray 100.

[Advantages of the Invention] As described above, according to the present invention, the pressurized fluid constantly ejected at a predetermined position of the stacking tray, the upper element and the lower element provided above and below, and the tray together with the suction member which can be raised and lowered. Adsorbed and separated one by one and lowered.

However, even if two or three trays are stacked and dropped from the upper element due to some cause such as distortion at the time of molding of the trays, the lowest pressure is generated by the pressurized fluid that is constantly ejected. A gap C is formed between the tray and the second tray, and the lowermost tray separates and descends from the second tray, and then separates and descends from the upper element.

The edge of the second tray is located below the upper element.

Then, the second suction tray is pushed up by the ascending suction member, and when the lower tray of the upper element is reached, the second tray is sucked and lowered, and then separated and lowered from the lower element.

As described above, even if two or three stacked trays are accidentally dropped from the stacked tray, the pressurized fluid sprayed from the side causes the gap C to be formed and separated at the same time. Adsorption, separation and lowering are surely eliminated, troubles to the automatic packaging machine are solved at once, and work efficiency is further increased.

Further, it is possible to solve the trouble caused by feeding two or three trays to the packaging machine and to obtain a particular effect such that the trays and the articles are not damaged.

Air is generally used as the pressurized fluid, but it is needless to say that the air is not limited to the air, and as shown in FIG.
Even if it is provided between 4,105, there is no particular difference in action and effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a trace stocker used in the device of the present invention, FIG. 2 is an enlarged front view of a main part of the device of the present invention, FIG. 3 is a plan view of FIG. 2, and FIGS. ), (C), (D)
Is an explanatory view showing a process in which the trays are sucked and separated one by one by using a suction cup in the device of the present invention, FIG. 5 (a), (b),
(C) and (d) are explanatory views showing a process of adsorbing and separating trays one by one by using a suction box in the device of the present invention, and FIGS. 6 to 10 show separating trays from a stacking tray. FIG. 6 is a known example diagram showing a relationship between a claw and a suction member, FIG. 6 is a schematic plan view, FIG. 7 is a schematic front view, FIG. 8 is a side view, and FIGS. 9 and 10 are perspective views. The figure is a front view in which the position of the nozzle is provided between the upper and lower elements. Reference numeral 100: Stacking tray 101: Tray 102: Frame 103: Stocker 104: Upper element 105: Lower element 1071: Edge of tray 108: Nozzle 109: Suction member 1091: Sucker 1092: Suction box

Claims (1)

[Claims] Claims: 1. A stacking tray 100 held by frames 102, 102, ...
09 and upper and lower elements 104 and 105 for holding the tray 100 that is sucked and separated by the suction member 109 in a stacking tray separating device that sequentially sucks and separates the tray 101 through a support member that is engaged with the flange portion of the tray. Is provided at a required interval with respect to the stacking tray 100, and
A nozzle 108 is provided which is inside or outside the lower elements 104, 105 and has a vertically elongated opening 1081 deformed in a flat shape that ejects a pressurized fluid onto the edge 1071 of the stacking tray 100. The edge 1071 of the tray 101 is directly supported by the lower element 105 such as a claw, and the edge 1071 of the other tray 101 directly supports the lower side of the upper element 104 such as a claw at a predetermined vertical interval. Separation device for stacked trays.