JPH0840557A - Stacking tray separator - Google Patents

Abstract

PURPOSE:To provide an inexpensive layered tray separating device for suction- separating layered trays one by one, increased in adhesion between the tray bottom face and the separating device and improved in suction force so as to be formed into a small capacity suction device without tray separating defectiveness. CONSTITUTION:The upper face of a separating device 5 provided below a tray placing part 3 is provided with an elastic body 6 extended in plate shape in the outer peripheral direction, with the inner periphery fixed to the separating device 5. Accordingly, when the separating device 5 with suction force is moved up, adhesion is increased by the elastic body 6 even to the uneven bottom face of the lowest part tray 2 of layered trays 2, and the lowest part tray 2 can be separated and taken out by lowering the separating device 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacked tray separating device for separating trays used for packaging foods and the like one by one.

[0002]

2. Description of the Related Art As described in Japanese Utility Model Laid-Open No. 3-25426, a conventional device has a suction box of a separating device which picks up the bottom surface of the lowermost tray and separates the steel sheet from the shape. It was made of a rigid body. Also, the bottom surface of the foam tray may be concave, convex, or twisted. The bottom surface of the polypropylene tray has a plurality of deep grooves in order to secure the rigidity of the tray.

[0003]

In the conventional stacking tray separating apparatus, since the adsorption box for adsorbing and separating the bottom surface of the lowermost tray is a rigid body such as a steel plate, the bottom surface of the tray is concave, convex or deep groove-shaped. If there are a plurality of trays, a partial gap is created between the suction box and the bottom surface of the tray, and the suction force of the tray is significantly reduced. Therefore, the tray cannot be peeled off occasionally. Further, conventionally, in order to solve this problem, the capacity of the suction device has been increased to increase the suction force, resulting in high cost.

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, eliminate the gap between the tray bottom and the suction port,
It is an object to provide an inexpensive stacking tray separating device by using the minimum necessary suction device that does not cause a tray peeling defect.

[0005]

The above object is to provide a holding mechanism for holding a tray placing portion for placing a stacking tray on a machine stand in an upright or inclined manner, and for holding the lowermost tray of the stacking tray. , A separating device is provided below the holding mechanism for adsorbing the lowermost trays one by one, separating and taking out the separating tray. The separating device is supported on a machine base by an electric motor so as to be vertically movable or swingable, and is attached to the machine base. In a stacking tray separating device in which the fixed suction device and the separating device are communicated with each other, an elastic body is formed on the upper surface of the separating device and extends in a plate shape in the outer peripheral direction to an arbitrary length, and the inner periphery is fixed to the separating device. It is achieved by having it.

Further, a receiving member having an outer circumference substantially the same as the outer circumference of the elastic body is formed on the lower surface of the elastic body whose outer circumference extends to a plate-like arbitrary length on the upper surface of the separation apparatus and whose inner circumference is fixed to the separating apparatus. It is achieved by providing.

[0007]

In the separating device for a stacking tray having the above-described structure, the separating device having a suction force by the suction device is operated upward by the electric motor to come into contact with the bottom surface of the lowermost stacked tray, thereby separating the separating tray. The elastic body provided on the upper surface of the device is brought into close contact with the bottom surface of the tray by the suction air of the suction device, and the separating device is operated downward by the electric motor, and the suction force of the elastic member and the bottom surface of the tray causes the lowermost one tray to move. It gets over the holding mechanism, peeled off and taken out. By providing a flexible elastic body on the top surface of the separator that comes into contact with the bottom surface of the tray as described above, the bottom surface of the tray can be a concave surface, a convex surface, or a groove surface to increase the adhesion, and the suction device can have the same capacity. However, the suction power is greatly improved.

Further, the elastic body provided on the upper surface of the separating device is more closely attached to the bottom surface of the tray as the flexibility is increased. However, since the outer peripheral surface of the elastic body is less rigid and faces downward, since the outer peripheral surface of the elastic body is provided with a receiving member having the same outer periphery as that of the elastic body, the flexibility of the elastic body is increased. Since the receiving member does not face downward, the adhesion with the hand surface of the tray is increased, and the suction force can be further improved.

[0009]

Embodiments of the present invention will be described with reference to FIGS. 1 is a front view showing the entire stacking tray separating device, FIG. 2 is a side view of FIG. 1, FIG. 3 is a plan view of FIG. 1, FIG. 4 is a detailed partial sectional view of FIG. 1, and FIG. 5 is a bottom view of FIG. 6 and 6 are detailed partial sectional views of FIG. 1, and FIG. 7 is a bottom view of FIG.

In the figure, a plurality of trays 2 are mounted on a machine base 1.
The tray mounting unit 3 in which the plurality of trays 2 are stacked is erected, and the holding mechanism 4 for holding the lowermost tray 2 of the plurality of trays 2 is provided. A separating device 5 that adsorbs the sheets one by one and separates and takes them out is provided, and an elastic body 6 formed of, for example, rubber is provided at the upper end of the separating device 5 and extends in the outer peripheral direction and the inner periphery is fixed to the separating device 5. The separating device 5 is fixed to the pipe 7 and moves up and down by a crank and an electric motor (not shown). The pipe 7 is connected to a suction device (not shown), and a suction force is generated by the suction device on the upper surface of the elastic body 6 via the pipe 7 and the separation device 5.

In the above structure, the suction device (not shown) is activated, and the elastic body 6 is passed through the pipe 7 and the separating device 5.
A suction force is generated on the upper surface. Next, the electric motor (not shown) is started, and the pipe 7, the separating device 5, and the elastic body 6 are raised via the crank. In the vicinity of the top dead center of the crank, the outer peripheral portion of the elastic body 6 on the upper surface of the separating device 5 is brought into close contact with the bottom surface of the lowermost tray 2 by the suction force of the suction device. The crank rotates in the direction of the bottom dead center, the tray 2 at the lowermost part gets over the holding mechanism 4 and is reliably peeled off, and this is repeated. Therefore, even if the bottom surface of the tray 2 is a concave surface or a convex surface, the suction portion has a plate-like elastic body 6, so that the adhesion is increased, there is no problem in peeling the tray 2, a suction device with a small capacity can be obtained, and an inexpensive stacking tray can be separated. A device can be provided.

Further, as shown in FIG. 6, the elastic member 6 is provided on the lower surface of the elastic member 6 so that the vicinity of the outer periphery of the elastic member 6 does not face downward.
By fixing the receiving member 8 to the separating device 5 in a direction substantially opposite to that of the outer periphery of the elastic body 6, the elastic body 6 does not face downward due to its own weight, so that the hardness of the elastic body 6 can be further lowered, and even at low temperature, The adhesion with the bottom of the tray 2 is further increased.

[0013]

According to the present invention, the upper surface of the separating device that comes into contact with the bottom surface of the lowermost stacked trays, sucks and peels off,
Since the elastic body that extends in the outer peripheral direction in a plate shape and whose inner periphery is fixed to the separating device is provided, the bottom surface of the tray conforms to a concave surface, a convex surface, or a groove surface to increase the adhesiveness, and the adsorption to the tray Power can be greatly improved. Therefore, since there is no peeling problem of the tray and a suction device having a small capacity can be provided, an inexpensive stacking tray separating device can be provided. Also,
By providing the receiving member on the lower surface of the elastic body provided on the upper surface of the separating device, the flexibility of the elastic body can be increased and the suction force with the bottom surface of the tray can be further improved.

[Brief description of drawings]

FIG. 1 is an overall front view showing an embodiment of a stacking tray separating device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a detailed partial cross-sectional view around the separation device of FIG.

FIG. 5 is a bottom view of FIG.

6 is a detailed partial cross-sectional view showing an application example around the separation device of FIG.

FIG. 7 is a bottom view of FIG.

[Explanation of symbols]

2 ... tray, 5 ... separator, 6 ... elastic body, 7 ... pipe,
8 ... Receiving member.

Claims (2)

[Claims] 1. A holding mechanism for holding a tray placing portion for placing a stacking tray on a machine stand, or holding the tray in a tilted manner, and holding a tray at the bottom of the stacking tray, and a holding mechanism below the holding mechanism. There is a separating device that adsorbs the lower trays one by one, separates them, and takes them out. The separating device is supported on a machine base so as to be vertically movable or swingable by an electric motor and is fixed to the machine base, and the separation device. In the stacking tray separating device communicating with each other, the stacking device is characterized in that an elastic body is provided on the upper surface of the separating device, the elastic body extending in a plate shape in the outer peripheral direction to an arbitrary length and fixing the inner circumference to the separating device. Tray separating device. 2. A receiving member having an outer circumference substantially the same as the outer circumference of the elastic body, which is formed on the upper surface of the separating apparatus in the outer peripheral direction to a plate-like arbitrary length and whose inner circumference is fixed to the separating apparatus. The stacking tray separating device according to claim 1, further comprising: