JPH07106782B2 - Tray magazine and method of storing trays in the magazine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A tray magazine for accommodating a plurality of trays in a stacked state, and a method for accommodating a desired component in the trays and accommodating a plurality of the trays in a stacked state, The number of trays accommodated in one magazine is larger than in the past, and the purpose is to save the storage and transportation of the desired components accommodated in the trays. The upper end of the guide for guiding the tray in the vertical direction is provided with a pawl metal fitting to be rotatable and facing the concave portion and having a pivotable end projecting into the concave portion, and constantly biased in a predetermined direction by a spring elastic body. It comprises a shaft that slides in a counter-predetermined direction when an external force is applied, and interlocking means that rotates the claw fitting by the sliding movement of the shaft and its returning operation. Is the recess A tray magazine configured so that the pivot end is moved out of the recess on the other side of the pivot, a tray mounting table that moves up and down in the magazine at a predetermined position, and a drive that presses the shaft in a predetermined direction. A body is provided, and the tray is supported by the pivotal end of the claw fitting that protrudes into the recess, and the tray stores the desired components, and the upper surface of the table or the upper surface of the uppermost tray mounted on the table is The tray is positioned directly below the tray supported by the pawl metal fittings, and when the desired components have been stored in the tray supported by the pawl metal fittings, the driving body is driven to move the pivot end of the pawl metal fittings into the concave portion. It is a tray housing method in which the tray supported by the claw fittings is dropped from the place and dropped onto the upper surface of the table or the uppermost tray.

[Industrial application field]

The present invention relates to a tray magazine for accommodating a plurality of trays in a stacked state and a method for accommodating a desired component in the tray and accommodating a plurality of the trays in a stacked state.

[Conventional technology]

Generally, in the storage and transportation of a large number of desired parts such as semiconductor devices, a plurality of desired parts are accommodated in a tray,
A tray magazine that stores a plurality of trays containing desired components in a stack is used.

To store the desired components in the tray, use a table that moves up and down in the magazine. After storing the desired components in the first tray mounted on the table, lower the table by a predetermined amount (tray thickness). The second tray is mounted on the first tray, and the desired components are accommodated in the second tray. A plurality of trays containing the desired components are accommodated in the magazine by repeating the operation of supplying new trays, accommodating the desired components in these trays, and the descending movement of the table.

FIG. 4 is a perspective view showing the outline of a tray, and FIG. 5 is a schematic configuration diagram of a conventional tray magazine.

In FIG. 4, the tray 1 made of vinyl chloride or the like is
A plurality of concave accommodating portions 2 for accommodating desired components (semiconductor devices, etc.) 4 are provided on the upper surface, and one side is a side surface (front side surface and rear side surface) at four points on the lower surface (only two front points can be seen in the figure). A concave portion 3 that opens is formed. The recess 3 is used when the tray 1 is transported.

In FIG. 5, a tray magazine (magazine) 5 for accommodating and stacking a plurality of trays 1 has four guides 6 for vertically guiding the four corners of the trays 1, which are mounted on, for example, a pair of guide rails 7. To be done.

In order to store a plurality of trays 1 in which desired components such as semiconductor devices are stored in the magazine 5, after storing a plurality of desired components in the tray 1 on the work table, the tray 1 in which the desired components are stored is transferred to the robot arm or the like. The first method of transporting and stacking in the magazine 5 by the above, the first empty tray 1 is mounted on the table that moves up and down in the magazine 5, and the second empty tray 1 is placed after the desired parts are stored in the tray 1.
Mounted on the first tray 1 and the second empty tray 1
There is a second method in which the desired components are stored in the tray 5, and thereafter, the desired components are stored in the plurality of trays 1 by repeating the same and the trays 1 are stored in the magazine 5.

In the conventional method, the desired parts are stored in the tray 1 on the work table and then the stored trays 1 are stored in the magazine 5. In contrast to the first method described above, the second part is used to store the desired parts while stacking the trays 1. The method is excellent in workability because there is no need to transport the tray 1 that has been stored.

FIG. 6 is an explanatory view of a method of accommodating trays in a conventional magazine.

In FIG. 6, a ball screw 8 that is vertically moved by a motor (not shown) supports a tray mounting table 9, and the table 9 moves up and down in the magazine 5.

In FIG. 6 (a), the first empty tray _1-1 is mounted on the table 9 located above the magazine 5, and when a sensor such as the transmissive sensor 10 detects the tray 1-1, the tray _1-1 is detected.
_-1 contains the desired parts. When the accommodation of the desired component relative to the tray 1 _-1 is completed, the table 9 is lowered by the thickness dimension of the tray 1 _-1, 6 diagram tray the next empty tray 1 _-2 as shown in (b) 1 stacked on top of _-1, when the sensor 10 detects the tray 1 _-2 to accommodate the desired component in the tray 1 _-2.

After that, the descending movement of the table 8, the stacking of the new empty trays 1, and the accommodation of the desired components are repeated, and the plurality of trays 1 containing the desired components are stacked on the table 9.

[Problems to be Solved by the Invention]

However, a plurality of desired component accommodating portions 2 are formed on the upper surface by being formed by molding a resin or heating a resin plate.
A warp occurs in the tray 1 having the.

Figure 7 is an effect explanatory view of the warp of the tray, the tray 1 _-1
When .about.1 _-n are stacked on the table 9, the individual warps are integrated to increase the inclination of the uppermost tray 1 _-n as shown in the figure. Then, there is a problem that it is difficult to correctly _store the desired component in the desired component storage portion of the tray 1 _{-n having} a large inclination.

Such a problem is to improve the processing accuracy of the tray 1, but it is difficult to eliminate the warp of the tray 1 which must be lightweight and inexpensive, and thus the number of stacked trays 1 is conventionally reduced. This hindered rationalization of storage and transportation of mass-produced desired parts.

An object of the present invention is to make it possible to store a larger number of trays in one magazine than ever before, and in particular, to rationalize the storage and transportation of desired parts to be mass-produced.

[Means for Solving the Problems]

According to FIG. 1 showing an embodiment of the tray magazine according to the present invention, at the upper end portion of a guide 6 for vertically guiding a plurality of trays 1 in which one side of concave portions provided on the four sides of the lower surface is opened to the side surface, A pawl metal fitting 21 facing the concave portion and rotatable and having a pivoting end 21a capable of entering the concave portion, and a spring elastic body 18 are constantly urged in a prescribed direction and slide in an opposite prescribed direction by application of an external force F. The shaft 14 and the interlocking means (cam 15, pin 22 and coil spring 23) for rotating the claw fitting 21 by the sliding movement of the shaft 14 and its returning operation. It is characterized in that the turning end projects into the recess, and the turning end 21a is disengaged from the recess on the other side of the turning.

The method of storing trays in the magazine according to the present invention is shown in FIG.
A tray mounting table 9 that moves up and down in 11 and a driving body that presses the shaft 14 in an anti-predetermined direction are provided, and the tray 1 is supported by the rotating end 21a of the claw metal fitting 21 that protrudes into the recess 3 of the tray 1. The desired parts are accommodated in 1 so that the upper surface of the table 9 or the uppermost tray 1 mounted on the table 9 is positioned directly below the tray 1 supported by the claw fittings 21 and supported by the claw fittings 21. When the tray 1 has accommodated the desired components, the driving member is driven to pull out the pivot end 21a of the claw fitting 21 from the recess 3 and the tray 1 supported by the claw fitting 21 is moved.
The tray is accommodated in the magazine according to claim 1, wherein the tray is dropped on the upper surface of the table 9 or on the uppermost tray 1.

[Action]

The tray magazine of the above means and the method of accommodating the tray in the magazine have a configuration in which the tray accommodating the required parts is supported by the upper end portion of the guide for guiding in the vertical direction,
Therefore, the tray supported on the upper end of the guide becomes substantially horizontal, and the required parts can be accommodated accurately. Therefore, it is possible to stack a larger number of trays in the magazine than in the conventional case, in other words, by making the guide longer than in the conventional case, it is possible to simultaneously store and transport a larger number of desired parts than in the conventional case.

〔Example〕

Hereinafter, a tray magazine (magazine) and a method of accommodating trays in the magazine will be described with reference to the drawings.

FIG. 1 is a side view (a) and a plan view (b) of a magazine according to an embodiment of the present invention, FIG. 2 is an operation explanatory view of a claw metal fitting of the magazine, and FIG. 3 is a tray accommodating tray in the magazine. It is explanatory drawing of the method to do.

In FIG. 1, the magazine mounted on the guide rail 7
The four guides 6 that vertically guide the four corners of the tray 1 are upright, and the pair of connecting plates 12 connected to the upper ends of the pair of guides 6 has a pair of bearing fittings 13 in the longitudinal direction. Supports a slidable shaft 14.

An intermediate portion of the shaft 14 to which the pair of cams 15 and the flange 16 are fixedly penetrates a through hole provided in the metal fitting 17 fixed to the connecting plate 12, and a compression coil spring 18 is provided between the metal fitting 17 and the flange 16. Is inserted.

A metal fitting 19 is fixed to each guide 6 above the connecting plate 12, and a pin 22 hangs down from the middle portion of the L-shaped claw metal fitting 21 supported by the metal fitting 19 by the short shaft 20. And claw bracket 21
The pin 22 urged by the compression coil spring 23 inserted between and comes into contact with the cam 15 at all times.

The right end surface of the cylindrical cam 15 is inclined as shown in FIG. 1 (B), and when a pressing force F is applied to the shaft 14 from the left, for example, by an air cylinder, the pin 22 contacts the cylindrical surface of the cam 15,
As a result, the tip portion 21a of the claw fitting 21 projects inside the guide 6 and also into the recess 3 of the tray 1 inserted between the four guides 6.

In FIG. 1, reference numeral 25 is a board on which the guides 6 stand upright, 26 is a connecting plate connected to the lower parts of the four guides 6, 27
Is a connecting plate connected to the intermediate portion of the guide 6 which is connected, and the through hole 28 of the tray mounting table is provided at the center of the substrate 25.
Has been opened.

In FIG. 2, which is a plan view of the magazine 11 from which the pressing force F is removed, when the coil spring 18 pushes the flange 16 leftward (counter-F direction), the shaft 14 slides leftward together with the flange 16. Then, the pin 22 that hangs from the claw metal fitting 21 is
The slanted right end face of the slide contacting shaft 14 comes into contact with the shaft 14, whereby the pawl metal fitting 21 is rotated and the tip end portion 21a is positioned outside the guide 6. Therefore, the tray 1 supported by the tip portion 21a is guided by the guide 6 and falls.

In FIG. 3 (a), the tray mounting table 9 attached to the ball screw 8 moves up and down in the magazine 11, and the tip end portion 21a of the claw fitting 21 protruding inside the guide 6 is conveyed by a robot arm or the like. now it enters the first tray 1 in the recess 3 of _-1, the tray 1 _-1 is supported on the upper end of the guide 6.

In FIG. 3 (b), prior to the time or finishes containing the required components in the tray 1 _-1, table 9 increased its top stops located directly below the tray 1 _-1.

In FIG. 3 (c), when retracting the distal end portion 21a of the pawl fitting 21 than the guide 6 tray 1 _-1 will fall, it is mounted on the table 9.

In FIG. 3 (D), after the table 9 descends and the tip 21a of the claw fitting is projected into the guide 6, FIG. 3 (E)
The second tray 1 _-2 allowed supporting the claw bracket tip 21a as shown in, allowed to accommodate a required component in the tray 1 _-2.

Then, as shown in Figure 3 by raising the table 9 (f), the upper surface of the tray 1 _-1 is to be positioned directly below the tray 1 _-2.

Hereinafter, the above-described operations of the claw fitting 21 and the table 9 are repeated to mount a plurality of trays 1 on the table 9.

〔The invention's effect〕

As described above, according to the present invention, the tray supported by the upper end portion of the guide is in a substantially horizontal state, and the required parts can be accurately accommodated. Therefore, it is possible to stack a larger number of trays in the magazine than in the conventional case. In other words, by making the guide longer than the conventional one, it becomes possible to simultaneously store and convey a larger number of required parts than in the conventional case. There is a streamlined effect.

[Brief description of drawings]

FIG. 1 is a magazine according to an embodiment of the present invention, FIG. 2 is an operation explanatory view of a metal tab of the magazine shown in FIG. 1, and FIG. 3 is an explanatory view of a method for accommodating trays in the magazine shown in FIG. FIG. 4 is a perspective view showing the outline of a tray, FIG. 5 is a schematic configuration diagram of a conventional magazine, FIG. 6 is an explanatory view of a method of accommodating trays in a conventional magazine, and FIG. 7 is a warp of the tray. FIG. In the figure, 1,1 _-1 , 1, _-2 , 1 _-3 , 1 _-4 , 1 _-n are trays, 3 is a recess on the bottom of the tray, 4 is required parts, 6 is a tray guide, and 9 is a tray mounting table. , 11 is a magazine (tray magazine), 14 is a shaft, 15 is a cam, 18 is a spring elastic body (compression coil spring), 21
Is a claw metal fitting, 21a is a pivotal end of the claw metal fitting, 22 is a pin hanging from the claw metal fitting, 23 is a coil spring, and F is a pressing force.

Claims (2)

[Claims] 1. A guide (6) for vertically guiding a plurality of trays (1) having one side open on one side of a recess (3) provided on the four sides of the lower surface is provided with the recess (3). A claw metal fitting (21) facing and rotatable and having a rotatable end (21a) capable of protruding into the recess (3) and a spring elastic body (18) are constantly urged in a predetermined direction and have an external force (F). Shaft (1
4) and interlocking means (15, 22 and 23) for rotating the claw fitting (21) by the sliding movement of the shaft (14) and its returning operation. A tray magazine, characterized in that, on one side, the rotating end projects into the recess, and on the other side of the rotating, the rotating end (21a) comes off the recess (3). 2. A tray mounting table (9) that moves up and down in the magazine (11) at a predetermined position, and a drive body that presses the shaft (14) in a counter-predetermined direction are provided, and the tray mounting table (9) projects into the recess (3). The tray (1) is supported by the rotating end (21a) of the claw fitting (21), and desired components are accommodated in the tray (1), and the tray (1) is placed on the upper surface of the table (9) or the table (9). The top surface of the loaded uppermost tray (1) is positioned directly below the tray (1) supported by the claw fitting (21), and is desired for the tray (1) supported by the claw fitting (21). When the parts are stored, the driving body is driven to move the claw fitting (2
The pivot end (21a) of 1) is pulled out from the recess (3), and the tray (1) supported by the claw fitting (21) is placed on the upper surface of the table (9) or the uppermost tray (1). The method of storing trays in a magazine according to claim 1, wherein the trays are dropped onto the magazine.