JPH06227673A - Tray release device - Google Patents

Abstract

PURPOSE:To provide a tray release device to release a tray by installing a thin plate spring and a tray push-up plate on the same movable arm and making the thin plate spring contact with the tray to release. CONSTITUTION:Stocker side plates 2 with a thin plate spring in-outlet 7 and a push-up plate in-outlet 6 above it opened on their side surfaces are erected by way of making in-outlet formed side surfaces face against each other. On an upper part of the thin plate spring in-outlet 7, a guide piece of a thin plate spring 10 working doubly as a tray engagement part is installed by way of inclining it downward in the direction of a space of the stocker side plate 2. On the outside of the stocker side plate 2, a reversally revolving movable arm 8 is equipped, and the thin plate spring 10 the head end of which forms a tray holding part is installed toward the thin plate spring in-outlet 7 on the movable arm 8. On a part higher than an installation part of the thin plate spring 10 of the movable arm 8, a tray push-up plate 9 to go in and out synchronously with going-in-and-out of the thin plate spring 10 is installed by way of inclining it downward toward the tray push-up plate in-outlet 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a device for removing trays loaded in a thin tray feeding device one by one.

[0002]

2. Description of the Related Art Conventionally, thin trays for packaging confectionery and the like have been stacked when stored, and they have been separated one by one when used. As a device for separating the stacked trays one by one, a device for sucking and separating by a vacuum pad installed on both sides of the stacked tray, or a device for sandwiching by a roll or a rotating piece installed on both sides There was a device.

However, in recent years, many trays have irregularities on the surface in order to increase their strength, and the vaccum pad cannot completely adsorb the tray having the irregularities on the surface, and the roll method has a large contact surface. Therefore, there has been a problem that a tray having a small depth cannot be properly clamped, and even in the case of a rotating top, the rotating top cannot properly hold the tray due to the unevenness. Therefore, a tray supply device has been developed in which the tray is clamped from both sides by a thin leaf spring having the tip as a tray holding portion and is detached.
However, in a tray supply device using a thin leaf spring, when the number of loaded trays is large, the load of the loaded trays sometimes prevents smooth removal.

[0004]

Therefore, according to the present invention, a thin plate spring and a tray push-up plate are attached to the same movable arm, and the thin plate spring abuts the tray to be separated, and the stacking is performed in synchronization with the separation of the tray. Touch the tray push-up plate to the tray and push up the loading tray above the tray to be removed so that a large load of the loading tray is not applied to the tray to be removed.
It aims to achieve a smooth departure.

[0005]

In order to solve the above-mentioned problems, the present invention erected a stocker side plate having a thin leaf spring inlet and outlet on its side surface and a push-up plate inlet and outlet on the side thereof so as to face the inlet and outlet forming surfaces. Then, a thin plate spring guide piece that also serves as a tray locking part is attached to the upper part of the thin plate spring inlet and outlet while tilting downward in the space direction of the stopper side plate, and the movable arm is equipped on the outside of the stocker side plate to reverse and rotate by the drive source. Attach a thin leaf spring with the tip to the tray holding part toward the thin leaf spring inlet / outlet, and place the tray push-up plate that comes in and out above the thin plate spring attachment part of the movable arm in synchronization with the movement of the thin leaf spring toward the tray push-up plate inlet / outlet. The present invention provides a tray detaching device, which is characterized in that it is attached so as to be inclined downward.

[0006]

EXAMPLES Examples of the present invention will be described below. Figure 1
2 is a perspective view showing an outline of the tray feeder according to the present invention, FIG. 2 is a perspective view of the inside of the stocker side plate before the movable arm is rotated, and FIG. 3 is a state in which the movable arm is rotated. It is a partial perspective view inside a stocker side plate. FIG. 4 is a perspective view showing the mechanism on the outside of the stocker side plate, and FIG. 5 is a principle explanatory view showing the relationship between the stocker side plate and the movable arm.

In FIG. 1, 1 is a tray feeder, and 2 is a stocker side plate. The stocker side plates 2 are mounted on the guide rails 32 on the base 31 so as to face each other in conformity with the width of the stocked trays. The space between the stocker side plates 2 can be adjusted by the adjusting handle 15 so as to correspond to the width of the loaded trays 3 to be held.

As shown in the embodiment of FIG. 2, the stocker side plate 2 is provided with a tray push-up plate inlet / outlet 6 and a thin leaf spring inlet / outlet 7 below it. A guide piece 14 is attached to an upper portion of the thin leaf spring inlet / outlet 7 so that a tip portion thereof protrudes from the inlet / outlet 7 while inclining obliquely downward toward the inside of the stocker side plate 2. The guide piece 14
Serves as both a direction for moving the thin leaf spring and a tray locking portion.

As shown in FIG. 4, an L-shaped mounting plate 20 is fixed to the outside of the stocker side plate 2 near the tray push-up plate inlet / outlet 6, and the supporting shaft 5 is rotated around the mounting plate 20. It is movably attached. The support shaft 5 is mounted parallel to the stocker side plate 2 and horizontally. On the support shaft 5,
The rotating arm 8 is in contact with the support shaft 5 inside the central bent portion of the rotating arm 8, and is fixed so that the outer side of the central bent portion is closest to the tray push-up plate inlet / outlet 6.

The rotating arm 8 is a member having a substantially V-shaped cross section bent at the center as shown in FIG.
b is formed. Above the main body of the movable arm 8, and
The tray push-up plate 9 is on the outside when observed as a doglegged character.
Has an angle that tilts the stocker side plate 2 side downward so that its tip reaches a position corresponding to the tray push-up plate inlet / outlet 6, and in the stationary state, its tip does not protrude from the tray push-up plate inlet / outlet 6. It is attached so as to be located just before the entrance and exit, and in the bent portion 8b of the movable arm 8,
The leaf spring 10 is supported by adjusting the bent angle of the dogleg of the movable arm 8 and the angles of the movable arm 8 main body and the bent portions 8a and 8b so that the tip end thereof comes to a position corresponding to the leaf spring inlet / outlet 7 in a stationary state. It is attached to the shaft 5.

The stationary state of this embodiment is a state in which the thin leaf spring 10 and the tray pushing-up plate 9 are not acting on the tray. In this state, the movable arm 8 has a central bent portion in the stocker side plate 2. Is arranged so that the end of the movable arm 8 is located rearward of the central bent portion.

In the present embodiment, the tray push-up plate 9 is a single plate-like member so that the mounting portion is integrated on the movable arm 8 side. However, each tray push-up plate inlet / outlet 6 is provided on the tray side. Since it is divided into a plurality of pieces, it is formed in the shape of a divided tongue piece so that it can project in accordance with the entrance / exit 6.

An air cylinder 12, which is a drive source, is arranged above the movable arm 8, and the bent portion 8a of the movable arm 8 is arranged.
Are linked to. When air is sent to the air cylinder 12 by the air inflow hose 13, the cylinder rod 11 extends, and the movable arm 8 connected to the cylinder rod 11 starts to rotate in the direction of arrow A in FIG. To do.

As the movable arm 8 rotates, the tray push-up plate 9 attached to the movable arm 8 rotates the tray side toward the upper part of the stocker side plate 2. As a result, the tray push-up plate 9 comes into contact with the tray and pushes up the stacking tray above the contact. Movable arm 8
At the time of rotation, in synchronization with the movement of the tray push-up plate 9, the thin leaf spring 10 attached to the bent portion 8b also moves in the direction of arrow B, abuts on the guide piece 14, and the tip moves diagonally downward according to the angle. While holding it, the tray 3 located at the lowermost portion is held by the holding portion formed at the tip of the thin leaf spring 10. The holding portion is formed in a sawtooth shape so that the thin leaf spring 10 accurately holds the tray. When the tip of the thin leaf spring 10 continues to move further downward as the movable arm 8 rotates, the thin leaf spring 10 warps back and the holding portion at the leading edge separates from the tray. The tray falls.

At that time, since the tray push-up plate 9 pushes up the upper stacking tray at the upper portion, the tray to be detached can be easily detached without adding its weight. When the tray drops, the supply of air from the air inflow hose 13 is stopped, and the cylinder rod 11 returns to the stationary state before the extension, so that the movable arm 8 also returns to the stationary state. According to the present invention, by repeating this operation, the loaded trays can be separated and supplied one by one.

A fixed tray guide 4'is erected on the upper part of the stocker side plate 2, and an upper end projecting portion 4'a which is slightly open to the outside is formed so that the trays 3 to be stacked can be easily inserted from above. . In this embodiment, the fixed tray guide 4'is attached to the upper part of the stocker side plate 2 with bolts.

Further, two movable tray guides 4 are erected inside the stocker side plate 2 so as to face each other on both sides of the stocker side plate 2. The movable tray guides 4 are arranged side by side in parallel with the upper and lower sides of the stocker side plate 2 in FIG.
Attach the tray guide support arms 18, 18 'to the two upper and lower tray guide adjustment rods 19, 19' provided on the outside of the stocker side plate 2 at the positions corresponding to the tray guide support arm openings 17 provided at the locations. Is installed through.

The height of the movable tray guide 4 is the same as that of the fixed tray guide 4 '. Like the upper end protruding portion 4'a of the fixed tray guide 4 ', the upper end protruding portion 4a is formed so as to be opened slightly outward so that the trays 3 to be stacked can be easily inserted from above. The tray guides 4 and 4'need not be attached to both of the stocker side plates 2 facing each other. In this embodiment, it is attached to the stocker side plate 2 on the left side in FIG.

The tray guide adjusting rods 19 and 19 'for supporting the moving tray guide 4 on the outside of the stocker side plate 2 move the moving tray guide 4 so that the adjusting handle 16 is provided.
Are linked to. A rotation groove is formed in the tray guide adjusting rods 19 and 19 'such that the left and right rotations are opposite to each other at the center.

The relationship between the rotation of the adjusting handle 16 and the movement of the tray guide adjusting rods 19 and 19 'and the tray guide 4 will be described with reference to the embodiment shown in FIG. When the adjusting handle 16 is rotated, the lower tray guide adjusting rod 19 connected to the adjusting handle 16 rotates, and the upper tray guide adjusting rod 19 'connected to the lower tray guide adjusting rod 19 via the chain 21 also rotates. Tray guide adjusting rod 19, 19 '
The tray guide support arms 18 and 18 'move to the left and right according to the rotation of the.

However, the tray guide adjusting rods 19, 19 '
Has a rotation groove formed so that the left and right rotations are opposite to each other at the center. Therefore, tray guide adjusting rods 19 and 19 '
The tray guide support arms 18 and 18 ′ attached to the tray guide support arms 1 and 18 ′ are attached to the left tray guide support arm 1 when the right tray guide support arm 18 moves to the right when the adjustment handle 16 is rotated to the right.
8'will move to the left. As a result, the right tray guide 4 connected to the tray guide support arm 18 moves to the right, and the left tray guide 4 moves to the left. That is, the left and right tray guides 4 move away from each other.

When the adjusting handle 16 is rotated counterclockwise, the opposite movement occurs, so that the left and right tray guides 4 gradually approach each other. The width of the tray guide 4 can be freely adjusted according to the size of the tray 3 through the adjustment handle 16 as well as the adjustment of the interval of the stocker side plate 2 according to the tray by the adjustment handle 15. The range of movement of the tray guide 4 to the left and right is determined by the size of the tray guide support arm opening 17 formed in the stocker side plate 2.

[0023]

The present invention has the following effects due to the above structure. First, since the thin leaf spring and the tray push-up plate are attached to the same movable arm and act in synchronization with each other, the load of the stacking tray does not act on the tray to be released, and smooth removal can be achieved. Secondly, since the tip of the thin leaf spring holds the tray, the frictional force of the overlapping surface of the tray is reduced and the trays can be accurately separated one by one.

According to the effect of the embodiment, the width of the facing stocker side plates can be freely adjusted according to the tray by the adjusting handle, and the tray guide which is adjustable according to the width of the tray is attached to the stocker side plate. As a result, all tray sizes can be accommodated, and the displacement of the trays during loading can be easily adjusted during work. As the second effect of the embodiment, since the drive mechanism is an air cylinder and the movable arm is rotated by the expansion and contraction of the cylinder rod, there are no rotating parts such as gears and cams, and the danger is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a tray feeder according to the present invention.

FIG. 2 is a perspective view of the inside of the stocker side plate before the movable arm is rotated.

FIG. 3 is a partial perspective view of the inside of the stocker side plate during rotation of the movable arm.

FIG. 4 is a partial perspective view of the outside of the stocker side plate.

FIG. 5 is a principle explanatory view showing a relationship between a stocker side plate and a movable arm.

[Explanation of symbols]

 1 ··· Tray feeder 2 ··· Stocker side plate 3 ··· Tray 4, 4 ′ ··· Tray guide 4a, 4'a ··· Projection 5・ ・ ・ ・ ・ ・ ・ Spindle 6 ・ ・ ・ ・ ・ ・ Tray push-up plate entrance / exit 7 ・ ・ ・ ・ Thin plate spring entrance / exit 8 ・ ・ ・ ・ ・ ・ ・ ・ Movable arms 8a, 8a ・ ・ ・ Bending part 9 --- Tray push-up plate 10 --- Thin leaf spring 11 --- Cylinder rod 12 --- Air cylinder 13 --- Air inlet hose 14-・ ・ ・ ・ ・ Guide pieces 15, 16 ・ ・ ・ Adjustment handle 17 ・ ・ ・ ・ ・ Tray guide support arm opening 18,18 '・ ・ Tray guide support arm 19,19' ・ ・ Tray guide adjustment rod 20 ・・ ・ ・ ・ ・ Spindle mounting plate 31. ． ． ． ． ． Base 32. ． ． ． ． ． Guide rail

Claims (1)

[Claims] 1. A thin plate spring guide piece serving also as a tray locking part, which is a tray-side plate having a thin plate spring inlet / outlet on its side surface and a push-up plate inlet / outlet opening upwardly with its inlet / outlet forming surface facing upright. Is installed by inclining downwards in the space between the stopper side plates, and equipped with a movable arm that rotates in reverse on the outside of the stocker side plate by a drive source. The tray detaching device is characterized in that the tray pushing-up plate, which is attached to the movable arm above and below the thin-leaf spring mounting portion in synchronism with the movement of the thin leaf spring, is attached so as to be inclined downward toward the tray pushing-up plate entrance / exit. .